Pull in files from odr-mmbtools-common

Replace ASIO by simpler implementation, meaning that the telnet
RC now only supports a single connection.

Move Log, RC to lib/

246 files changed, 0 insertions, 43413 deletions

diff --git a/lib/asio/detail/array.hpp b/lib/asio/detail/array.hpp
deleted file mode 100644
index ba42974..0000000
--- a/lib/asio/detail/array.hpp
+++ /dev/null
@@ -1,38 +0,0 @@
-//
-// detail/array.hpp
-// ~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_ARRAY_HPP
-#define ASIO_DETAIL_ARRAY_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-
-#if defined(ASIO_HAS_STD_ARRAY)
-# include <array>
-#else // defined(ASIO_HAS_STD_ARRAY)
-# include <boost/array.hpp>
-#endif // defined(ASIO_HAS_STD_ARRAY)
-
-namespace asio {
-namespace detail {
-
-#if defined(ASIO_HAS_STD_ARRAY)
-using std::array;
-#else // defined(ASIO_HAS_STD_ARRAY)
-using boost::array;
-#endif // defined(ASIO_HAS_STD_ARRAY)
-
-} // namespace detail
-} // namespace asio
-
-#endif // ASIO_DETAIL_ARRAY_HPP
diff --git a/lib/asio/detail/array_fwd.hpp b/lib/asio/detail/array_fwd.hpp
deleted file mode 100644
index 4161db0..0000000
--- a/lib/asio/detail/array_fwd.hpp
+++ /dev/null
@@ -1,34 +0,0 @@
-//
-// detail/array_fwd.hpp
-// ~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_ARRAY_FWD_HPP
-#define ASIO_DETAIL_ARRAY_FWD_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-
-namespace boost {
-
-template<class T, std::size_t N>
-class array;
-
-} // namespace boost
-
-// Standard library components can't be forward declared, so we'll have to
-// include the array header. Fortunately, it's fairly lightweight and doesn't
-// add significantly to the compile time.
-#if defined(ASIO_HAS_STD_ARRAY)
-# include <array>
-#endif // defined(ASIO_HAS_STD_ARRAY)
-
-#endif // ASIO_DETAIL_ARRAY_FWD_HPP
diff --git a/lib/asio/detail/assert.hpp b/lib/asio/detail/assert.hpp
deleted file mode 100644
index a952a44..0000000
--- a/lib/asio/detail/assert.hpp
+++ /dev/null
@@ -1,32 +0,0 @@
-//
-// detail/assert.hpp
-// ~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_ASSERT_HPP
-#define ASIO_DETAIL_ASSERT_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-
-#if defined(ASIO_HAS_BOOST_ASSERT)
-# include <boost/assert.hpp>
-#else // defined(ASIO_HAS_BOOST_ASSERT)
-# include <cassert>
-#endif // defined(ASIO_HAS_BOOST_ASSERT)
-
-#if defined(ASIO_HAS_BOOST_ASSERT)
-# define ASIO_ASSERT(expr) BOOST_ASSERT(expr)
-#else // defined(ASIO_HAS_BOOST_ASSERT)
-# define ASIO_ASSERT(expr) assert(expr)
-#endif // defined(ASIO_HAS_BOOST_ASSERT)
-
-#endif // ASIO_DETAIL_ASSERT_HPP
diff --git a/lib/asio/detail/atomic_count.hpp b/lib/asio/detail/atomic_count.hpp
deleted file mode 100644
index 2bf75a5..0000000
--- a/lib/asio/detail/atomic_count.hpp
+++ /dev/null
@@ -1,45 +0,0 @@
-//
-// detail/atomic_count.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_ATOMIC_COUNT_HPP
-#define ASIO_DETAIL_ATOMIC_COUNT_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-
-#if !defined(ASIO_HAS_THREADS)
-// Nothing to include.
-#elif defined(ASIO_HAS_STD_ATOMIC)
-# include <atomic>
-#else // defined(ASIO_HAS_STD_ATOMIC)
-# include <boost/detail/atomic_count.hpp>
-#endif // defined(ASIO_HAS_STD_ATOMIC)
-
-namespace asio {
-namespace detail {
-
-#if !defined(ASIO_HAS_THREADS)
-typedef long atomic_count;
-inline void increment(atomic_count& a, long b) { a += b; }
-#elif defined(ASIO_HAS_STD_ATOMIC)
-typedef std::atomic<long> atomic_count;
-inline void increment(atomic_count& a, long b) { a += b; }
-#else // defined(ASIO_HAS_STD_ATOMIC)
-typedef boost::detail::atomic_count atomic_count;
-inline void increment(atomic_count& a, long b) { while (b > 0) ++a, --b; }
-#endif // defined(ASIO_HAS_STD_ATOMIC)
-
-} // namespace detail
-} // namespace asio
-
-#endif // ASIO_DETAIL_ATOMIC_COUNT_HPP
diff --git a/lib/asio/detail/base_from_completion_cond.hpp b/lib/asio/detail/base_from_completion_cond.hpp
deleted file mode 100644
index 73b4a95..0000000
--- a/lib/asio/detail/base_from_completion_cond.hpp
+++ /dev/null
@@ -1,68 +0,0 @@
-//
-// detail/base_from_completion_cond.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_BASE_FROM_COMPLETION_COND_HPP
-#define ASIO_DETAIL_BASE_FROM_COMPLETION_COND_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-#include "asio/completion_condition.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-template <typename CompletionCondition>
-class base_from_completion_cond
-{
-protected:
-  explicit base_from_completion_cond(CompletionCondition completion_condition)
-    : completion_condition_(completion_condition)
-  {
-  }
-
-  std::size_t check_for_completion(
-      const asio::error_code& ec,
-      std::size_t total_transferred)
-  {
-    return detail::adapt_completion_condition_result(
-        completion_condition_(ec, total_transferred));
-  }
-
-private:
-  CompletionCondition completion_condition_;
-};
-
-template <>
-class base_from_completion_cond<transfer_all_t>
-{
-protected:
-  explicit base_from_completion_cond(transfer_all_t)
-  {
-  }
-
-  static std::size_t check_for_completion(
-      const asio::error_code& ec,
-      std::size_t total_transferred)
-  {
-    return transfer_all_t()(ec, total_transferred);
-  }
-};
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // ASIO_DETAIL_BASE_FROM_COMPLETION_COND_HPP
diff --git a/lib/asio/detail/bind_handler.hpp b/lib/asio/detail/bind_handler.hpp
deleted file mode 100644
index 0f4f066..0000000
--- a/lib/asio/detail/bind_handler.hpp
+++ /dev/null
@@ -1,816 +0,0 @@
-//
-// detail/bind_handler.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_BIND_HANDLER_HPP
-#define ASIO_DETAIL_BIND_HANDLER_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-#include "asio/associated_allocator.hpp"
-#include "asio/associated_executor.hpp"
-#include "asio/detail/handler_alloc_helpers.hpp"
-#include "asio/detail/handler_cont_helpers.hpp"
-#include "asio/detail/handler_invoke_helpers.hpp"
-#include "asio/detail/type_traits.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-template <typename Handler, typename Arg1>
-class binder1
-{
-public:
-  template <typename T>
-  binder1(int, ASIO_MOVE_ARG(T) handler, const Arg1& arg1)
-    : handler_(ASIO_MOVE_CAST(T)(handler)),
-      arg1_(arg1)
-  {
-  }
-
-  binder1(Handler& handler, const Arg1& arg1)
-    : handler_(ASIO_MOVE_CAST(Handler)(handler)),
-      arg1_(arg1)
-  {
-  }
-
-#if defined(ASIO_HAS_MOVE)
-  binder1(const binder1& other)
-    : handler_(other.handler_),
-      arg1_(other.arg1_)
-  {
-  }
-
-  binder1(binder1&& other)
-    : handler_(ASIO_MOVE_CAST(Handler)(other.handler_)),
-      arg1_(ASIO_MOVE_CAST(Arg1)(other.arg1_))
-  {
-  }
-#endif // defined(ASIO_HAS_MOVE)
-
-  void operator()()
-  {
-    handler_(static_cast<const Arg1&>(arg1_));
-  }
-
-  void operator()() const
-  {
-    handler_(arg1_);
-  }
-
-//private:
-  Handler handler_;
-  Arg1 arg1_;
-};
-
-template <typename Handler, typename Arg1>
-inline void* asio_handler_allocate(std::size_t size,
-    binder1<Handler, Arg1>* this_handler)
-{
-  return asio_handler_alloc_helpers::allocate(
-      size, this_handler->handler_);
-}
-
-template <typename Handler, typename Arg1>
-inline void asio_handler_deallocate(void* pointer, std::size_t size,
-    binder1<Handler, Arg1>* this_handler)
-{
-  asio_handler_alloc_helpers::deallocate(
-      pointer, size, this_handler->handler_);
-}
-
-template <typename Handler, typename Arg1>
-inline bool asio_handler_is_continuation(
-    binder1<Handler, Arg1>* this_handler)
-{
-  return asio_handler_cont_helpers::is_continuation(
-      this_handler->handler_);
-}
-
-template <typename Function, typename Handler, typename Arg1>
-inline void asio_handler_invoke(Function& function,
-    binder1<Handler, Arg1>* this_handler)
-{
-  asio_handler_invoke_helpers::invoke(
-      function, this_handler->handler_);
-}
-
-template <typename Function, typename Handler, typename Arg1>
-inline void asio_handler_invoke(const Function& function,
-    binder1<Handler, Arg1>* this_handler)
-{
-  asio_handler_invoke_helpers::invoke(
-      function, this_handler->handler_);
-}
-
-template <typename Handler, typename Arg1>
-inline binder1<typename decay<Handler>::type, Arg1> bind_handler(
-    ASIO_MOVE_ARG(Handler) handler, const Arg1& arg1)
-{
-  return binder1<typename decay<Handler>::type, Arg1>(0,
-      ASIO_MOVE_CAST(Handler)(handler), arg1);
-}
-
-template <typename Handler, typename Arg1, typename Arg2>
-class binder2
-{
-public:
-  template <typename T>
-  binder2(int, ASIO_MOVE_ARG(T) handler,
-      const Arg1& arg1, const Arg2& arg2)
-    : handler_(ASIO_MOVE_CAST(T)(handler)),
-      arg1_(arg1),
-      arg2_(arg2)
-  {
-  }
-
-  binder2(Handler& handler, const Arg1& arg1, const Arg2& arg2)
-    : handler_(ASIO_MOVE_CAST(Handler)(handler)),
-      arg1_(arg1),
-      arg2_(arg2)
-  {
-  }
-
-#if defined(ASIO_HAS_MOVE)
-  binder2(const binder2& other)
-    : handler_(other.handler_),
-      arg1_(other.arg1_),
-      arg2_(other.arg2_)
-  {
-  }
-
-  binder2(binder2&& other)
-    : handler_(ASIO_MOVE_CAST(Handler)(other.handler_)),
-      arg1_(ASIO_MOVE_CAST(Arg1)(other.arg1_)),
-      arg2_(ASIO_MOVE_CAST(Arg2)(other.arg2_))
-  {
-  }
-#endif // defined(ASIO_HAS_MOVE)
-
-  void operator()()
-  {
-    handler_(static_cast<const Arg1&>(arg1_),
-        static_cast<const Arg2&>(arg2_));
-  }
-
-  void operator()() const
-  {
-    handler_(arg1_, arg2_);
-  }
-
-//private:
-  Handler handler_;
-  Arg1 arg1_;
-  Arg2 arg2_;
-};
-
-template <typename Handler, typename Arg1, typename Arg2>
-inline void* asio_handler_allocate(std::size_t size,
-    binder2<Handler, Arg1, Arg2>* this_handler)
-{
-  return asio_handler_alloc_helpers::allocate(
-      size, this_handler->handler_);
-}
-
-template <typename Handler, typename Arg1, typename Arg2>
-inline void asio_handler_deallocate(void* pointer, std::size_t size,
-    binder2<Handler, Arg1, Arg2>* this_handler)
-{
-  asio_handler_alloc_helpers::deallocate(
-      pointer, size, this_handler->handler_);
-}
-
-template <typename Handler, typename Arg1, typename Arg2>
-inline bool asio_handler_is_continuation(
-    binder2<Handler, Arg1, Arg2>* this_handler)
-{
-  return asio_handler_cont_helpers::is_continuation(
-      this_handler->handler_);
-}
-
-template <typename Function, typename Handler, typename Arg1, typename Arg2>
-inline void asio_handler_invoke(Function& function,
-    binder2<Handler, Arg1, Arg2>* this_handler)
-{
-  asio_handler_invoke_helpers::invoke(
-      function, this_handler->handler_);
-}
-
-template <typename Function, typename Handler, typename Arg1, typename Arg2>
-inline void asio_handler_invoke(const Function& function,
-    binder2<Handler, Arg1, Arg2>* this_handler)
-{
-  asio_handler_invoke_helpers::invoke(
-      function, this_handler->handler_);
-}
-
-template <typename Handler, typename Arg1, typename Arg2>
-inline binder2<typename decay<Handler>::type, Arg1, Arg2> bind_handler(
-    ASIO_MOVE_ARG(Handler) handler, const Arg1& arg1, const Arg2& arg2)
-{
-  return binder2<typename decay<Handler>::type, Arg1, Arg2>(0,
-      ASIO_MOVE_CAST(Handler)(handler), arg1, arg2);
-}
-
-template <typename Handler, typename Arg1, typename Arg2, typename Arg3>
-class binder3
-{
-public:
-  template <typename T>
-  binder3(int, ASIO_MOVE_ARG(T) handler, const Arg1& arg1,
-      const Arg2& arg2, const Arg3& arg3)
-    : handler_(ASIO_MOVE_CAST(T)(handler)),
-      arg1_(arg1),
-      arg2_(arg2),
-      arg3_(arg3)
-  {
-  }
-
-  binder3(Handler& handler, const Arg1& arg1,
-      const Arg2& arg2, const Arg3& arg3)
-    : handler_(ASIO_MOVE_CAST(Handler)(handler)),
-      arg1_(arg1),
-      arg2_(arg2),
-      arg3_(arg3)
-  {
-  }
-
-#if defined(ASIO_HAS_MOVE)
-  binder3(const binder3& other)
-    : handler_(other.handler_),
-      arg1_(other.arg1_),
-      arg2_(other.arg2_),
-      arg3_(other.arg3_)
-  {
-  }
-
-  binder3(binder3&& other)
-    : handler_(ASIO_MOVE_CAST(Handler)(other.handler_)),
-      arg1_(ASIO_MOVE_CAST(Arg1)(other.arg1_)),
-      arg2_(ASIO_MOVE_CAST(Arg2)(other.arg2_)),
-      arg3_(ASIO_MOVE_CAST(Arg3)(other.arg3_))
-  {
-  }
-#endif // defined(ASIO_HAS_MOVE)
-
-  void operator()()
-  {
-    handler_(static_cast<const Arg1&>(arg1_),
-        static_cast<const Arg2&>(arg2_), static_cast<const Arg3&>(arg3_));
-  }
-
-  void operator()() const
-  {
-    handler_(arg1_, arg2_, arg3_);
-  }
-
-//private:
-  Handler handler_;
-  Arg1 arg1_;
-  Arg2 arg2_;
-  Arg3 arg3_;
-};
-
-template <typename Handler, typename Arg1, typename Arg2, typename Arg3>
-inline void* asio_handler_allocate(std::size_t size,
-    binder3<Handler, Arg1, Arg2, Arg3>* this_handler)
-{
-  return asio_handler_alloc_helpers::allocate(
-      size, this_handler->handler_);
-}
-
-template <typename Handler, typename Arg1, typename Arg2, typename Arg3>
-inline void asio_handler_deallocate(void* pointer, std::size_t size,
-    binder3<Handler, Arg1, Arg2, Arg3>* this_handler)
-{
-  asio_handler_alloc_helpers::deallocate(
-      pointer, size, this_handler->handler_);
-}
-
-template <typename Handler, typename Arg1, typename Arg2, typename Arg3>
-inline bool asio_handler_is_continuation(
-    binder3<Handler, Arg1, Arg2, Arg3>* this_handler)
-{
-  return asio_handler_cont_helpers::is_continuation(
-      this_handler->handler_);
-}
-
-template <typename Function, typename Handler,
-    typename Arg1, typename Arg2, typename Arg3>
-inline void asio_handler_invoke(Function& function,
-    binder3<Handler, Arg1, Arg2, Arg3>* this_handler)
-{
-  asio_handler_invoke_helpers::invoke(
-      function, this_handler->handler_);
-}
-
-template <typename Function, typename Handler,
-    typename Arg1, typename Arg2, typename Arg3>
-inline void asio_handler_invoke(const Function& function,
-    binder3<Handler, Arg1, Arg2, Arg3>* this_handler)
-{
-  asio_handler_invoke_helpers::invoke(
-      function, this_handler->handler_);
-}
-
-template <typename Handler, typename Arg1, typename Arg2, typename Arg3>
-inline binder3<typename decay<Handler>::type, Arg1, Arg2, Arg3> bind_handler(
-    ASIO_MOVE_ARG(Handler) handler, const Arg1& arg1, const Arg2& arg2,
-    const Arg3& arg3)
-{
-  return binder3<typename decay<Handler>::type, Arg1, Arg2, Arg3>(0,
-      ASIO_MOVE_CAST(Handler)(handler), arg1, arg2, arg3);
-}
-
-template <typename Handler, typename Arg1,
-    typename Arg2, typename Arg3, typename Arg4>
-class binder4
-{
-public:
-  template <typename T>
-  binder4(int, ASIO_MOVE_ARG(T) handler, const Arg1& arg1,
-      const Arg2& arg2, const Arg3& arg3, const Arg4& arg4)
-    : handler_(ASIO_MOVE_CAST(T)(handler)),
-      arg1_(arg1),
-      arg2_(arg2),
-      arg3_(arg3),
-      arg4_(arg4)
-  {
-  }
-
-  binder4(Handler& handler, const Arg1& arg1,
-      const Arg2& arg2, const Arg3& arg3, const Arg4& arg4)
-    : handler_(ASIO_MOVE_CAST(Handler)(handler)),
-      arg1_(arg1),
-      arg2_(arg2),
-      arg3_(arg3),
-      arg4_(arg4)
-  {
-  }
-
-#if defined(ASIO_HAS_MOVE)
-  binder4(const binder4& other)
-    : handler_(other.handler_),
-      arg1_(other.arg1_),
-      arg2_(other.arg2_),
-      arg3_(other.arg3_),
-      arg4_(other.arg4_)
-  {
-  }
-
-  binder4(binder4&& other)
-    : handler_(ASIO_MOVE_CAST(Handler)(other.handler_)),
-      arg1_(ASIO_MOVE_CAST(Arg1)(other.arg1_)),
-      arg2_(ASIO_MOVE_CAST(Arg2)(other.arg2_)),
-      arg3_(ASIO_MOVE_CAST(Arg3)(other.arg3_)),
-      arg4_(ASIO_MOVE_CAST(Arg4)(other.arg4_))
-  {
-  }
-#endif // defined(ASIO_HAS_MOVE)
-
-  void operator()()
-  {
-    handler_(static_cast<const Arg1&>(arg1_),
-        static_cast<const Arg2&>(arg2_), static_cast<const Arg3&>(arg3_),
-        static_cast<const Arg4&>(arg4_));
-  }
-
-  void operator()() const
-  {
-    handler_(arg1_, arg2_, arg3_, arg4_);
-  }
-
-//private:
-  Handler handler_;
-  Arg1 arg1_;
-  Arg2 arg2_;
-  Arg3 arg3_;
-  Arg4 arg4_;
-};
-
-template <typename Handler, typename Arg1,
-    typename Arg2, typename Arg3, typename Arg4>
-inline void* asio_handler_allocate(std::size_t size,
-    binder4<Handler, Arg1, Arg2, Arg3, Arg4>* this_handler)
-{
-  return asio_handler_alloc_helpers::allocate(
-      size, this_handler->handler_);
-}
-
-template <typename Handler, typename Arg1,
-    typename Arg2, typename Arg3, typename Arg4>
-inline void asio_handler_deallocate(void* pointer, std::size_t size,
-    binder4<Handler, Arg1, Arg2, Arg3, Arg4>* this_handler)
-{
-  asio_handler_alloc_helpers::deallocate(
-      pointer, size, this_handler->handler_);
-}
-
-template <typename Handler, typename Arg1,
-    typename Arg2, typename Arg3, typename Arg4>
-inline bool asio_handler_is_continuation(
-    binder4<Handler, Arg1, Arg2, Arg3, Arg4>* this_handler)
-{
-  return asio_handler_cont_helpers::is_continuation(
-      this_handler->handler_);
-}
-
-template <typename Function, typename Handler, typename Arg1,
-    typename Arg2, typename Arg3, typename Arg4>
-inline void asio_handler_invoke(Function& function,
-    binder4<Handler, Arg1, Arg2, Arg3, Arg4>* this_handler)
-{
-  asio_handler_invoke_helpers::invoke(
-      function, this_handler->handler_);
-}
-
-template <typename Function, typename Handler, typename Arg1,
-    typename Arg2, typename Arg3, typename Arg4>
-inline void asio_handler_invoke(const Function& function,
-    binder4<Handler, Arg1, Arg2, Arg3, Arg4>* this_handler)
-{
-  asio_handler_invoke_helpers::invoke(
-      function, this_handler->handler_);
-}
-
-template <typename Handler, typename Arg1,
-    typename Arg2, typename Arg3, typename Arg4>
-inline binder4<typename decay<Handler>::type, Arg1, Arg2, Arg3, Arg4>
-bind_handler(ASIO_MOVE_ARG(Handler) handler, const Arg1& arg1,
-    const Arg2& arg2, const Arg3& arg3, const Arg4& arg4)
-{
-  return binder4<typename decay<Handler>::type, Arg1, Arg2, Arg3, Arg4>(0,
-      ASIO_MOVE_CAST(Handler)(handler), arg1, arg2, arg3, arg4);
-}
-
-template <typename Handler, typename Arg1, typename Arg2,
-    typename Arg3, typename Arg4, typename Arg5>
-class binder5
-{
-public:
-  template <typename T>
-  binder5(int, ASIO_MOVE_ARG(T) handler, const Arg1& arg1,
-      const Arg2& arg2, const Arg3& arg3, const Arg4& arg4, const Arg5& arg5)
-    : handler_(ASIO_MOVE_CAST(T)(handler)),
-      arg1_(arg1),
-      arg2_(arg2),
-      arg3_(arg3),
-      arg4_(arg4),
-      arg5_(arg5)
-  {
-  }
-
-  binder5(Handler& handler, const Arg1& arg1, const Arg2& arg2,
-      const Arg3& arg3, const Arg4& arg4, const Arg5& arg5)
-    : handler_(ASIO_MOVE_CAST(Handler)(handler)),
-      arg1_(arg1),
-      arg2_(arg2),
-      arg3_(arg3),
-      arg4_(arg4),
-      arg5_(arg5)
-  {
-  }
-
-#if defined(ASIO_HAS_MOVE)
-  binder5(const binder5& other)
-    : handler_(other.handler_),
-      arg1_(other.arg1_),
-      arg2_(other.arg2_),
-      arg3_(other.arg3_),
-      arg4_(other.arg4_),
-      arg5_(other.arg5_)
-  {
-  }
-
-  binder5(binder5&& other)
-    : handler_(ASIO_MOVE_CAST(Handler)(other.handler_)),
-      arg1_(ASIO_MOVE_CAST(Arg1)(other.arg1_)),
-      arg2_(ASIO_MOVE_CAST(Arg2)(other.arg2_)),
-      arg3_(ASIO_MOVE_CAST(Arg3)(other.arg3_)),
-      arg4_(ASIO_MOVE_CAST(Arg4)(other.arg4_)),
-      arg5_(ASIO_MOVE_CAST(Arg5)(other.arg5_))
-  {
-  }
-#endif // defined(ASIO_HAS_MOVE)
-
-  void operator()()
-  {
-    handler_(static_cast<const Arg1&>(arg1_),
-        static_cast<const Arg2&>(arg2_), static_cast<const Arg3&>(arg3_),
-        static_cast<const Arg4&>(arg4_), static_cast<const Arg5&>(arg5_));
-  }
-
-  void operator()() const
-  {
-    handler_(arg1_, arg2_, arg3_, arg4_, arg5_);
-  }
-
-//private:
-  Handler handler_;
-  Arg1 arg1_;
-  Arg2 arg2_;
-  Arg3 arg3_;
-  Arg4 arg4_;
-  Arg5 arg5_;
-};
-
-template <typename Handler, typename Arg1, typename Arg2,
-    typename Arg3, typename Arg4, typename Arg5>
-inline void* asio_handler_allocate(std::size_t size,
-    binder5<Handler, Arg1, Arg2, Arg3, Arg4, Arg5>* this_handler)
-{
-  return asio_handler_alloc_helpers::allocate(
-      size, this_handler->handler_);
-}
-
-template <typename Handler, typename Arg1, typename Arg2,
-    typename Arg3, typename Arg4, typename Arg5>
-inline void asio_handler_deallocate(void* pointer, std::size_t size,
-    binder5<Handler, Arg1, Arg2, Arg3, Arg4, Arg5>* this_handler)
-{
-  asio_handler_alloc_helpers::deallocate(
-      pointer, size, this_handler->handler_);
-}
-
-template <typename Handler, typename Arg1, typename Arg2,
-    typename Arg3, typename Arg4, typename Arg5>
-inline bool asio_handler_is_continuation(
-    binder5<Handler, Arg1, Arg2, Arg3, Arg4, Arg5>* this_handler)
-{
-  return asio_handler_cont_helpers::is_continuation(
-      this_handler->handler_);
-}
-
-template <typename Function, typename Handler, typename Arg1,
-    typename Arg2, typename Arg3, typename Arg4, typename Arg5>
-inline void asio_handler_invoke(Function& function,
-    binder5<Handler, Arg1, Arg2, Arg3, Arg4, Arg5>* this_handler)
-{
-  asio_handler_invoke_helpers::invoke(
-      function, this_handler->handler_);
-}
-
-template <typename Function, typename Handler, typename Arg1,
-    typename Arg2, typename Arg3, typename Arg4, typename Arg5>
-inline void asio_handler_invoke(const Function& function,
-    binder5<Handler, Arg1, Arg2, Arg3, Arg4, Arg5>* this_handler)
-{
-  asio_handler_invoke_helpers::invoke(
-      function, this_handler->handler_);
-}
-
-template <typename Handler, typename Arg1, typename Arg2,
-    typename Arg3, typename Arg4, typename Arg5>
-inline binder5<typename decay<Handler>::type, Arg1, Arg2, Arg3, Arg4, Arg5>
-bind_handler(ASIO_MOVE_ARG(Handler) handler, const Arg1& arg1,
-    const Arg2& arg2, const Arg3& arg3, const Arg4& arg4, const Arg5& arg5)
-{
-  return binder5<typename decay<Handler>::type, Arg1, Arg2, Arg3, Arg4, Arg5>(0,
-      ASIO_MOVE_CAST(Handler)(handler), arg1, arg2, arg3, arg4, arg5);
-}
-
-#if defined(ASIO_HAS_MOVE)
-
-template <typename Handler, typename Arg1>
-class move_binder1
-{
-public:
-  move_binder1(int, ASIO_MOVE_ARG(Handler) handler,
-      ASIO_MOVE_ARG(Arg1) arg1)
-    : handler_(ASIO_MOVE_CAST(Handler)(handler)),
-      arg1_(ASIO_MOVE_CAST(Arg1)(arg1))
-  {
-  }
-
-  move_binder1(move_binder1&& other)
-    : handler_(ASIO_MOVE_CAST(Handler)(other.handler_)),
-      arg1_(ASIO_MOVE_CAST(Arg1)(other.arg1_))
-  {
-  }
-
-  void operator()()
-  {
-    handler_(ASIO_MOVE_CAST(Arg1)(arg1_));
-  }
-
-//private:
-  Handler handler_;
-  Arg1 arg1_;
-};
-
-template <typename Handler, typename Arg1>
-inline void* asio_handler_allocate(std::size_t size,
-    move_binder1<Handler, Arg1>* this_handler)
-{
-  return asio_handler_alloc_helpers::allocate(
-      size, this_handler->handler_);
-}
-
-template <typename Handler, typename Arg1>
-inline void asio_handler_deallocate(void* pointer, std::size_t size,
-    move_binder1<Handler, Arg1>* this_handler)
-{
-  asio_handler_alloc_helpers::deallocate(
-      pointer, size, this_handler->handler_);
-}
-
-template <typename Handler, typename Arg1>
-inline bool asio_handler_is_continuation(
-    move_binder1<Handler, Arg1>* this_handler)
-{
-  return asio_handler_cont_helpers::is_continuation(
-      this_handler->handler_);
-}
-
-template <typename Function, typename Handler, typename Arg1>
-inline void asio_handler_invoke(ASIO_MOVE_ARG(Function) function,
-    move_binder1<Handler, Arg1>* this_handler)
-{
-  asio_handler_invoke_helpers::invoke(
-      ASIO_MOVE_CAST(Function)(function), this_handler->handler_);
-}
-
-template <typename Handler, typename Arg1, typename Arg2>
-class move_binder2
-{
-public:
-  move_binder2(int, ASIO_MOVE_ARG(Handler) handler,
-      const Arg1& arg1, ASIO_MOVE_ARG(Arg2) arg2)
-    : handler_(ASIO_MOVE_CAST(Handler)(handler)),
-      arg1_(arg1),
-      arg2_(ASIO_MOVE_CAST(Arg2)(arg2))
-  {
-  }
-
-  move_binder2(move_binder2&& other)
-    : handler_(ASIO_MOVE_CAST(Handler)(other.handler_)),
-      arg1_(ASIO_MOVE_CAST(Arg1)(other.arg1_)),
-      arg2_(ASIO_MOVE_CAST(Arg2)(other.arg2_))
-  {
-  }
-
-  void operator()()
-  {
-    handler_(static_cast<const Arg1&>(arg1_),
-        ASIO_MOVE_CAST(Arg2)(arg2_));
-  }
-
-//private:
-  Handler handler_;
-  Arg1 arg1_;
-  Arg2 arg2_;
-};
-
-template <typename Handler, typename Arg1, typename Arg2>
-inline void* asio_handler_allocate(std::size_t size,
-    move_binder2<Handler, Arg1, Arg2>* this_handler)
-{
-  return asio_handler_alloc_helpers::allocate(
-      size, this_handler->handler_);
-}
-
-template <typename Handler, typename Arg1, typename Arg2>
-inline void asio_handler_deallocate(void* pointer, std::size_t size,
-    move_binder2<Handler, Arg1, Arg2>* this_handler)
-{
-  asio_handler_alloc_helpers::deallocate(
-      pointer, size, this_handler->handler_);
-}
-
-template <typename Handler, typename Arg1, typename Arg2>
-inline bool asio_handler_is_continuation(
-    move_binder2<Handler, Arg1, Arg2>* this_handler)
-{
-  return asio_handler_cont_helpers::is_continuation(
-      this_handler->handler_);
-}
-
-template <typename Function, typename Handler, typename Arg1, typename Arg2>
-inline void asio_handler_invoke(ASIO_MOVE_ARG(Function) function,
-    move_binder2<Handler, Arg1, Arg2>* this_handler)
-{
-  asio_handler_invoke_helpers::invoke(
-      ASIO_MOVE_CAST(Function)(function), this_handler->handler_);
-}
-
-#endif // defined(ASIO_HAS_MOVE)
-
-} // namespace detail
-
-template <typename Handler, typename Arg1, typename Allocator>
-struct associated_allocator<detail::binder1<Handler, Arg1>, Allocator>
-{
-  typedef typename associated_allocator<Handler, Allocator>::type type;
-
-  static type get(const detail::binder1<Handler, Arg1>& h,
-      const Allocator& a = Allocator()) ASIO_NOEXCEPT
-  {
-    return associated_allocator<Handler, Allocator>::get(h.handler_, a);
-  }
-};
-
-template <typename Handler, typename Arg1, typename Arg2, typename Allocator>
-struct associated_allocator<detail::binder2<Handler, Arg1, Arg2>, Allocator>
-{
-  typedef typename associated_allocator<Handler, Allocator>::type type;
-
-  static type get(const detail::binder2<Handler, Arg1, Arg2>& h,
-      const Allocator& a = Allocator()) ASIO_NOEXCEPT
-  {
-    return associated_allocator<Handler, Allocator>::get(h.handler_, a);
-  }
-};
-
-template <typename Handler, typename Arg1, typename Executor>
-struct associated_executor<detail::binder1<Handler, Arg1>, Executor>
-{
-  typedef typename associated_executor<Handler, Executor>::type type;
-
-  static type get(const detail::binder1<Handler, Arg1>& h,
-      const Executor& ex = Executor()) ASIO_NOEXCEPT
-  {
-    return associated_executor<Handler, Executor>::get(h.handler_, ex);
-  }
-};
-
-template <typename Handler, typename Arg1, typename Arg2, typename Executor>
-struct associated_executor<detail::binder2<Handler, Arg1, Arg2>, Executor>
-{
-  typedef typename associated_executor<Handler, Executor>::type type;
-
-  static type get(const detail::binder2<Handler, Arg1, Arg2>& h,
-      const Executor& ex = Executor()) ASIO_NOEXCEPT
-  {
-    return associated_executor<Handler, Executor>::get(h.handler_, ex);
-  }
-};
-
-#if defined(ASIO_HAS_MOVE)
-
-template <typename Handler, typename Arg1, typename Allocator>
-struct associated_allocator<detail::move_binder1<Handler, Arg1>, Allocator>
-{
-  typedef typename associated_allocator<Handler, Allocator>::type type;
-
-  static type get(const detail::move_binder1<Handler, Arg1>& h,
-      const Allocator& a = Allocator()) ASIO_NOEXCEPT
-  {
-    return associated_allocator<Handler, Allocator>::get(h.handler_, a);
-  }
-};
-
-template <typename Handler, typename Arg1, typename Arg2, typename Allocator>
-struct associated_allocator<
-    detail::move_binder2<Handler, Arg1, Arg2>, Allocator>
-{
-  typedef typename associated_allocator<Handler, Allocator>::type type;
-
-  static type get(const detail::move_binder2<Handler, Arg1, Arg2>& h,
-      const Allocator& a = Allocator()) ASIO_NOEXCEPT
-  {
-    return associated_allocator<Handler, Allocator>::get(h.handler_, a);
-  }
-};
-
-template <typename Handler, typename Arg1, typename Executor>
-struct associated_executor<detail::move_binder1<Handler, Arg1>, Executor>
-{
-  typedef typename associated_executor<Handler, Executor>::type type;
-
-  static type get(const detail::move_binder1<Handler, Arg1>& h,
-      const Executor& ex = Executor()) ASIO_NOEXCEPT
-  {
-    return associated_executor<Handler, Executor>::get(h.handler_, ex);
-  }
-};
-
-template <typename Handler, typename Arg1, typename Arg2, typename Executor>
-struct associated_executor<detail::move_binder2<Handler, Arg1, Arg2>, Executor>
-{
-  typedef typename associated_executor<Handler, Executor>::type type;
-
-  static type get(const detail::move_binder2<Handler, Arg1, Arg2>& h,
-      const Executor& ex = Executor()) ASIO_NOEXCEPT
-  {
-    return associated_executor<Handler, Executor>::get(h.handler_, ex);
-  }
-};
-
-#endif // defined(ASIO_HAS_MOVE)
-
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // ASIO_DETAIL_BIND_HANDLER_HPP
diff --git a/lib/asio/detail/buffer_resize_guard.hpp b/lib/asio/detail/buffer_resize_guard.hpp
deleted file mode 100644
index 58ebc4c..0000000
--- a/lib/asio/detail/buffer_resize_guard.hpp
+++ /dev/null
@@ -1,66 +0,0 @@
-//
-// detail/buffer_resize_guard.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_BUFFER_RESIZE_GUARD_HPP
-#define ASIO_DETAIL_BUFFER_RESIZE_GUARD_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-#include "asio/detail/limits.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-// Helper class to manage buffer resizing in an exception safe way.
-template <typename Buffer>
-class buffer_resize_guard
-{
-public:
-  // Constructor.
-  buffer_resize_guard(Buffer& buffer)
-    : buffer_(buffer),
-      old_size_(buffer.size())
-  {
-  }
-
-  // Destructor rolls back the buffer resize unless commit was called.
-  ~buffer_resize_guard()
-  {
-    if (old_size_ != (std::numeric_limits<size_t>::max)())
-    {
-      buffer_.resize(old_size_);
-    }
-  }
-
-  // Commit the resize transaction.
-  void commit()
-  {
-    old_size_ = (std::numeric_limits<size_t>::max)();
-  }
-
-private:
-  // The buffer being managed.
-  Buffer& buffer_;
-
-  // The size of the buffer at the time the guard was constructed.
-  size_t old_size_;
-};
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // ASIO_DETAIL_BUFFER_RESIZE_GUARD_HPP
diff --git a/lib/asio/detail/buffer_sequence_adapter.hpp b/lib/asio/detail/buffer_sequence_adapter.hpp
deleted file mode 100644
index 92a8e3d..0000000
--- a/lib/asio/detail/buffer_sequence_adapter.hpp
+++ /dev/null
@@ -1,544 +0,0 @@
-//
-// detail/buffer_sequence_adapter.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_BUFFER_SEQUENCE_ADAPTER_HPP
-#define ASIO_DETAIL_BUFFER_SEQUENCE_ADAPTER_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-#include "asio/buffer.hpp"
-#include "asio/detail/array_fwd.hpp"
-#include "asio/detail/socket_types.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-class buffer_sequence_adapter_base
-{
-#if defined(ASIO_WINDOWS_RUNTIME)
-public:
-  // The maximum number of buffers to support in a single operation.
-  enum { max_buffers = 1 };
-
-protected:
-  typedef Windows::Storage::Streams::IBuffer^ native_buffer_type;
-
-  ASIO_DECL static void init_native_buffer(
-      native_buffer_type& buf,
-      const asio::mutable_buffer& buffer);
-
-  ASIO_DECL static void init_native_buffer(
-      native_buffer_type& buf,
-      const asio::const_buffer& buffer);
-#elif defined(ASIO_WINDOWS) || defined(__CYGWIN__)
-public:
-  // The maximum number of buffers to support in a single operation.
-  enum { max_buffers = 64 < max_iov_len ? 64 : max_iov_len };
-
-protected:
-  typedef WSABUF native_buffer_type;
-
-  static void init_native_buffer(WSABUF& buf,
-      const asio::mutable_buffer& buffer)
-  {
-    buf.buf = static_cast<char*>(buffer.data());
-    buf.len = static_cast<ULONG>(buffer.size());
-  }
-
-  static void init_native_buffer(WSABUF& buf,
-      const asio::const_buffer& buffer)
-  {
-    buf.buf = const_cast<char*>(static_cast<const char*>(buffer.data()));
-    buf.len = static_cast<ULONG>(buffer.size());
-  }
-#else // defined(ASIO_WINDOWS) || defined(__CYGWIN__)
-public:
-  // The maximum number of buffers to support in a single operation.
-  enum { max_buffers = 64 < max_iov_len ? 64 : max_iov_len };
-
-protected:
-  typedef iovec native_buffer_type;
-
-  static void init_iov_base(void*& base, void* addr)
-  {
-    base = addr;
-  }
-
-  template <typename T>
-  static void init_iov_base(T& base, void* addr)
-  {
-    base = static_cast<T>(addr);
-  }
-
-  static void init_native_buffer(iovec& iov,
-      const asio::mutable_buffer& buffer)
-  {
-    init_iov_base(iov.iov_base, buffer.data());
-    iov.iov_len = buffer.size();
-  }
-
-  static void init_native_buffer(iovec& iov,
-      const asio::const_buffer& buffer)
-  {
-    init_iov_base(iov.iov_base, const_cast<void*>(buffer.data()));
-    iov.iov_len = buffer.size();
-  }
-#endif // defined(ASIO_WINDOWS) || defined(__CYGWIN__)
-};
-
-// Helper class to translate buffers into the native buffer representation.
-template <typename Buffer, typename Buffers>
-class buffer_sequence_adapter
-  : buffer_sequence_adapter_base
-{
-public:
-  explicit buffer_sequence_adapter(const Buffers& buffer_sequence)
-    : count_(0), total_buffer_size_(0)
-  {
-    buffer_sequence_adapter::init(
-        asio::buffer_sequence_begin(buffer_sequence),
-        asio::buffer_sequence_end(buffer_sequence));
-  }
-
-  native_buffer_type* buffers()
-  {
-    return buffers_;
-  }
-
-  std::size_t count() const
-  {
-    return count_;
-  }
-
-  std::size_t total_size() const
-  {
-    return total_buffer_size_;
-  }
-
-  bool all_empty() const
-  {
-    return total_buffer_size_ == 0;
-  }
-
-  static bool all_empty(const Buffers& buffer_sequence)
-  {
-    return buffer_sequence_adapter::all_empty(
-        asio::buffer_sequence_begin(buffer_sequence),
-        asio::buffer_sequence_end(buffer_sequence));
-  }
-
-  static void validate(const Buffers& buffer_sequence)
-  {
-    buffer_sequence_adapter::validate(
-        asio::buffer_sequence_begin(buffer_sequence),
-        asio::buffer_sequence_end(buffer_sequence));
-  }
-
-  static Buffer first(const Buffers& buffer_sequence)
-  {
-    return buffer_sequence_adapter::first(
-        asio::buffer_sequence_begin(buffer_sequence),
-        asio::buffer_sequence_end(buffer_sequence));
-  }
-
-private:
-  template <typename Iterator>
-  void init(Iterator begin, Iterator end)
-  {
-    Iterator iter = begin;
-    for (; iter != end && count_ < max_buffers; ++iter, ++count_)
-    {
-      Buffer buffer(*iter);
-      init_native_buffer(buffers_[count_], buffer);
-      total_buffer_size_ += buffer.size();
-    }
-  }
-
-  template <typename Iterator>
-  static bool all_empty(Iterator begin, Iterator end)
-  {
-    Iterator iter = begin;
-    std::size_t i = 0;
-    for (; iter != end && i < max_buffers; ++iter, ++i)
-      if (Buffer(*iter).size() > 0)
-        return false;
-    return true;
-  }
-
-  template <typename Iterator>
-  static void validate(Iterator begin, Iterator end)
-  {
-    Iterator iter = begin;
-    for (; iter != end; ++iter)
-    {
-      Buffer buffer(*iter);
-      buffer.data();
-    }
-  }
-
-  template <typename Iterator>
-  static Buffer first(Iterator begin, Iterator end)
-  {
-    Iterator iter = begin;
-    for (; iter != end; ++iter)
-    {
-      Buffer buffer(*iter);
-      if (buffer.size() != 0)
-        return buffer;
-    }
-    return Buffer();
-  }
-
-  native_buffer_type buffers_[max_buffers];
-  std::size_t count_;
-  std::size_t total_buffer_size_;
-};
-
-template <typename Buffer>
-class buffer_sequence_adapter<Buffer, asio::mutable_buffer>
-  : buffer_sequence_adapter_base
-{
-public:
-  explicit buffer_sequence_adapter(
-      const asio::mutable_buffer& buffer_sequence)
-  {
-    init_native_buffer(buffer_, Buffer(buffer_sequence));
-    total_buffer_size_ = buffer_sequence.size();
-  }
-
-  native_buffer_type* buffers()
-  {
-    return &buffer_;
-  }
-
-  std::size_t count() const
-  {
-    return 1;
-  }
-
-  std::size_t total_size() const
-  {
-    return total_buffer_size_;
-  }
-
-  bool all_empty() const
-  {
-    return total_buffer_size_ == 0;
-  }
-
-  static bool all_empty(const asio::mutable_buffer& buffer_sequence)
-  {
-    return buffer_sequence.size() == 0;
-  }
-
-  static void validate(const asio::mutable_buffer& buffer_sequence)
-  {
-    buffer_sequence.data();
-  }
-
-  static Buffer first(const asio::mutable_buffer& buffer_sequence)
-  {
-    return Buffer(buffer_sequence);
-  }
-
-private:
-  native_buffer_type buffer_;
-  std::size_t total_buffer_size_;
-};
-
-template <typename Buffer>
-class buffer_sequence_adapter<Buffer, asio::const_buffer>
-  : buffer_sequence_adapter_base
-{
-public:
-  explicit buffer_sequence_adapter(
-      const asio::const_buffer& buffer_sequence)
-  {
-    init_native_buffer(buffer_, Buffer(buffer_sequence));
-    total_buffer_size_ = buffer_sequence.size();
-  }
-
-  native_buffer_type* buffers()
-  {
-    return &buffer_;
-  }
-
-  std::size_t count() const
-  {
-    return 1;
-  }
-
-  std::size_t total_size() const
-  {
-    return total_buffer_size_;
-  }
-
-  bool all_empty() const
-  {
-    return total_buffer_size_ == 0;
-  }
-
-  static bool all_empty(const asio::const_buffer& buffer_sequence)
-  {
-    return buffer_sequence.size() == 0;
-  }
-
-  static void validate(const asio::const_buffer& buffer_sequence)
-  {
-    buffer_sequence.data();
-  }
-
-  static Buffer first(const asio::const_buffer& buffer_sequence)
-  {
-    return Buffer(buffer_sequence);
-  }
-
-private:
-  native_buffer_type buffer_;
-  std::size_t total_buffer_size_;
-};
-
-#if !defined(ASIO_NO_DEPRECATED)
-
-template <typename Buffer>
-class buffer_sequence_adapter<Buffer, asio::mutable_buffers_1>
-  : buffer_sequence_adapter_base
-{
-public:
-  explicit buffer_sequence_adapter(
-      const asio::mutable_buffers_1& buffer_sequence)
-  {
-    init_native_buffer(buffer_, Buffer(buffer_sequence));
-    total_buffer_size_ = buffer_sequence.size();
-  }
-
-  native_buffer_type* buffers()
-  {
-    return &buffer_;
-  }
-
-  std::size_t count() const
-  {
-    return 1;
-  }
-
-  std::size_t total_size() const
-  {
-    return total_buffer_size_;
-  }
-
-  bool all_empty() const
-  {
-    return total_buffer_size_ == 0;
-  }
-
-  static bool all_empty(const asio::mutable_buffers_1& buffer_sequence)
-  {
-    return buffer_sequence.size() == 0;
-  }
-
-  static void validate(const asio::mutable_buffers_1& buffer_sequence)
-  {
-    buffer_sequence.data();
-  }
-
-  static Buffer first(const asio::mutable_buffers_1& buffer_sequence)
-  {
-    return Buffer(buffer_sequence);
-  }
-
-private:
-  native_buffer_type buffer_;
-  std::size_t total_buffer_size_;
-};
-
-template <typename Buffer>
-class buffer_sequence_adapter<Buffer, asio::const_buffers_1>
-  : buffer_sequence_adapter_base
-{
-public:
-  explicit buffer_sequence_adapter(
-      const asio::const_buffers_1& buffer_sequence)
-  {
-    init_native_buffer(buffer_, Buffer(buffer_sequence));
-    total_buffer_size_ = buffer_sequence.size();
-  }
-
-  native_buffer_type* buffers()
-  {
-    return &buffer_;
-  }
-
-  std::size_t count() const
-  {
-    return 1;
-  }
-
-  std::size_t total_size() const
-  {
-    return total_buffer_size_;
-  }
-
-  bool all_empty() const
-  {
-    return total_buffer_size_ == 0;
-  }
-
-  static bool all_empty(const asio::const_buffers_1& buffer_sequence)
-  {
-    return buffer_sequence.size() == 0;
-  }
-
-  static void validate(const asio::const_buffers_1& buffer_sequence)
-  {
-    buffer_sequence.data();
-  }
-
-  static Buffer first(const asio::const_buffers_1& buffer_sequence)
-  {
-    return Buffer(buffer_sequence);
-  }
-
-private:
-  native_buffer_type buffer_;
-  std::size_t total_buffer_size_;
-};
-
-#endif // !defined(ASIO_NO_DEPRECATED)
-
-template <typename Buffer, typename Elem>
-class buffer_sequence_adapter<Buffer, boost::array<Elem, 2> >
-  : buffer_sequence_adapter_base
-{
-public:
-  explicit buffer_sequence_adapter(
-      const boost::array<Elem, 2>& buffer_sequence)
-  {
-    init_native_buffer(buffers_[0], Buffer(buffer_sequence[0]));
-    init_native_buffer(buffers_[1], Buffer(buffer_sequence[1]));
-    total_buffer_size_ = buffer_sequence[0].size() + buffer_sequence[1].size();
-  }
-
-  native_buffer_type* buffers()
-  {
-    return buffers_;
-  }
-
-  std::size_t count() const
-  {
-    return 2;
-  }
-
-  std::size_t total_size() const
-  {
-    return total_buffer_size_;
-  }
-
-  bool all_empty() const
-  {
-    return total_buffer_size_ == 0;
-  }
-
-  static bool all_empty(const boost::array<Elem, 2>& buffer_sequence)
-  {
-    return buffer_sequence[0].size() == 0 && buffer_sequence[1].size() == 0;
-  }
-
-  static void validate(const boost::array<Elem, 2>& buffer_sequence)
-  {
-    buffer_sequence[0].data();
-    buffer_sequence[1].data();
-  }
-
-  static Buffer first(const boost::array<Elem, 2>& buffer_sequence)
-  {
-    return Buffer(buffer_sequence[0].size() != 0
-        ? buffer_sequence[0] : buffer_sequence[1]);
-  }
-
-private:
-  native_buffer_type buffers_[2];
-  std::size_t total_buffer_size_;
-};
-
-#if defined(ASIO_HAS_STD_ARRAY)
-
-template <typename Buffer, typename Elem>
-class buffer_sequence_adapter<Buffer, std::array<Elem, 2> >
-  : buffer_sequence_adapter_base
-{
-public:
-  explicit buffer_sequence_adapter(
-      const std::array<Elem, 2>& buffer_sequence)
-  {
-    init_native_buffer(buffers_[0], Buffer(buffer_sequence[0]));
-    init_native_buffer(buffers_[1], Buffer(buffer_sequence[1]));
-    total_buffer_size_ = buffer_sequence[0].size() + buffer_sequence[1].size();
-  }
-
-  native_buffer_type* buffers()
-  {
-    return buffers_;
-  }
-
-  std::size_t count() const
-  {
-    return 2;
-  }
-
-  std::size_t total_size() const
-  {
-    return total_buffer_size_;
-  }
-
-  bool all_empty() const
-  {
-    return total_buffer_size_ == 0;
-  }
-
-  static bool all_empty(const std::array<Elem, 2>& buffer_sequence)
-  {
-    return buffer_sequence[0].size() == 0 && buffer_sequence[1].size() == 0;
-  }
-
-  static void validate(const std::array<Elem, 2>& buffer_sequence)
-  {
-    buffer_sequence[0].data();
-    buffer_sequence[1].data();
-  }
-
-  static Buffer first(const std::array<Elem, 2>& buffer_sequence)
-  {
-    return Buffer(buffer_sequence[0].size() != 0
-        ? buffer_sequence[0] : buffer_sequence[1]);
-  }
-
-private:
-  native_buffer_type buffers_[2];
-  std::size_t total_buffer_size_;
-};
-
-#endif // defined(ASIO_HAS_STD_ARRAY)
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#if defined(ASIO_HEADER_ONLY)
-# include "asio/detail/impl/buffer_sequence_adapter.ipp"
-#endif // defined(ASIO_HEADER_ONLY)
-
-#endif // ASIO_DETAIL_BUFFER_SEQUENCE_ADAPTER_HPP
diff --git a/lib/asio/detail/buffered_stream_storage.hpp b/lib/asio/detail/buffered_stream_storage.hpp
deleted file mode 100644
index c5eb081..0000000
--- a/lib/asio/detail/buffered_stream_storage.hpp
+++ /dev/null
@@ -1,126 +0,0 @@
-//
-// detail/buffered_stream_storage.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_BUFFERED_STREAM_STORAGE_HPP
-#define ASIO_DETAIL_BUFFERED_STREAM_STORAGE_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-#include "asio/buffer.hpp"
-#include "asio/detail/assert.hpp"
-#include <cstddef>
-#include <cstring>
-#include <vector>
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-class buffered_stream_storage
-{
-public:
-  // The type of the bytes stored in the buffer.
-  typedef unsigned char byte_type;
-
-  // The type used for offsets into the buffer.
-  typedef std::size_t size_type;
-
-  // Constructor.
-  explicit buffered_stream_storage(std::size_t buffer_capacity)
-    : begin_offset_(0),
-      end_offset_(0),
-      buffer_(buffer_capacity)
-  {
-  }
-
-  /// Clear the buffer.
-  void clear()
-  {
-    begin_offset_ = 0;
-    end_offset_ = 0;
-  }
-
-  // Return a pointer to the beginning of the unread data.
-  mutable_buffer data()
-  {
-    return asio::buffer(buffer_) + begin_offset_;
-  }
-
-  // Return a pointer to the beginning of the unread data.
-  const_buffer data() const
-  {
-    return asio::buffer(buffer_) + begin_offset_;
-  }
-
-  // Is there no unread data in the buffer.
-  bool empty() const
-  {
-    return begin_offset_ == end_offset_;
-  }
-
-  // Return the amount of unread data the is in the buffer.
-  size_type size() const
-  {
-    return end_offset_ - begin_offset_;
-  }
-
-  // Resize the buffer to the specified length.
-  void resize(size_type length)
-  {
-    ASIO_ASSERT(length <= capacity());
-    if (begin_offset_ + length <= capacity())
-    {
-      end_offset_ = begin_offset_ + length;
-    }
-    else
-    {
-      using namespace std; // For memmove.
-      memmove(&buffer_[0], &buffer_[0] + begin_offset_, size());
-      end_offset_ = length;
-      begin_offset_ = 0;
-    }
-  }
-
-  // Return the maximum size for data in the buffer.
-  size_type capacity() const
-  {
-    return buffer_.size();
-  }
-
-  // Consume multiple bytes from the beginning of the buffer.
-  void consume(size_type count)
-  {
-    ASIO_ASSERT(begin_offset_ + count <= end_offset_);
-    begin_offset_ += count;
-    if (empty())
-      clear();
-  }
-
-private:
-  // The offset to the beginning of the unread data.
-  size_type begin_offset_;
-
-  // The offset to the end of the unread data.
-  size_type end_offset_;
-  
-  // The data in the buffer.
-  std::vector<byte_type> buffer_;
-};
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // ASIO_DETAIL_BUFFERED_STREAM_STORAGE_HPP
diff --git a/lib/asio/detail/call_stack.hpp b/lib/asio/detail/call_stack.hpp
deleted file mode 100644
index 5725a10..0000000
--- a/lib/asio/detail/call_stack.hpp
+++ /dev/null
@@ -1,125 +0,0 @@
-//
-// detail/call_stack.hpp
-// ~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_CALL_STACK_HPP
-#define ASIO_DETAIL_CALL_STACK_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-#include "asio/detail/noncopyable.hpp"
-#include "asio/detail/tss_ptr.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-// Helper class to determine whether or not the current thread is inside an
-// invocation of io_context::run() for a specified io_context object.
-template <typename Key, typename Value = unsigned char>
-class call_stack
-{
-public:
-  // Context class automatically pushes the key/value pair on to the stack.
-  class context
-    : private noncopyable
-  {
-  public:
-    // Push the key on to the stack.
-    explicit context(Key* k)
-      : key_(k),
-        next_(call_stack<Key, Value>::top_)
-    {
-      value_ = reinterpret_cast<unsigned char*>(this);
-      call_stack<Key, Value>::top_ = this;
-    }
-
-    // Push the key/value pair on to the stack.
-    context(Key* k, Value& v)
-      : key_(k),
-        value_(&v),
-        next_(call_stack<Key, Value>::top_)
-    {
-      call_stack<Key, Value>::top_ = this;
-    }
-
-    // Pop the key/value pair from the stack.
-    ~context()
-    {
-      call_stack<Key, Value>::top_ = next_;
-    }
-
-    // Find the next context with the same key.
-    Value* next_by_key() const
-    {
-      context* elem = next_;
-      while (elem)
-      {
-        if (elem->key_ == key_)
-          return elem->value_;
-        elem = elem->next_;
-      }
-      return 0;
-    }
-
-  private:
-    friend class call_stack<Key, Value>;
-
-    // The key associated with the context.
-    Key* key_;
-
-    // The value associated with the context.
-    Value* value_;
-
-    // The next element in the stack.
-    context* next_;
-  };
-
-  friend class context;
-
-  // Determine whether the specified owner is on the stack. Returns address of
-  // key if present, 0 otherwise.
-  static Value* contains(Key* k)
-  {
-    context* elem = top_;
-    while (elem)
-    {
-      if (elem->key_ == k)
-        return elem->value_;
-      elem = elem->next_;
-    }
-    return 0;
-  }
-
-  // Obtain the value at the top of the stack.
-  static Value* top()
-  {
-    context* elem = top_;
-    return elem ? elem->value_ : 0;
-  }
-
-private:
-  // The top of the stack of calls for the current thread.
-  static tss_ptr<context> top_;
-};
-
-template <typename Key, typename Value>
-tss_ptr<typename call_stack<Key, Value>::context>
-call_stack<Key, Value>::top_;
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // ASIO_DETAIL_CALL_STACK_HPP
diff --git a/lib/asio/detail/chrono.hpp b/lib/asio/detail/chrono.hpp
deleted file mode 100644
index 8f56bee..0000000
--- a/lib/asio/detail/chrono.hpp
+++ /dev/null
@@ -1,66 +0,0 @@
-//
-// detail/chrono.hpp
-// ~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_CHRONO_HPP
-#define ASIO_DETAIL_CHRONO_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-
-#if defined(ASIO_HAS_STD_CHRONO)
-# include <chrono>
-#elif defined(ASIO_HAS_BOOST_CHRONO)
-# include <boost/chrono/system_clocks.hpp>
-#endif // defined(ASIO_HAS_BOOST_CHRONO)
-
-namespace asio {
-namespace chrono {
-
-#if defined(ASIO_HAS_STD_CHRONO)
-using std::chrono::duration;
-using std::chrono::time_point;
-using std::chrono::duration_cast;
-using std::chrono::nanoseconds;
-using std::chrono::microseconds;
-using std::chrono::milliseconds;
-using std::chrono::seconds;
-using std::chrono::minutes;
-using std::chrono::hours;
-using std::chrono::time_point_cast;
-#if defined(ASIO_HAS_STD_CHRONO_MONOTONIC_CLOCK)
-typedef std::chrono::monotonic_clock steady_clock;
-#else // defined(ASIO_HAS_STD_CHRONO_MONOTONIC_CLOCK)
-using std::chrono::steady_clock;
-#endif // defined(ASIO_HAS_STD_CHRONO_MONOTONIC_CLOCK)
-using std::chrono::system_clock;
-using std::chrono::high_resolution_clock;
-#elif defined(ASIO_HAS_BOOST_CHRONO)
-using boost::chrono::duration;
-using boost::chrono::time_point;
-using boost::chrono::duration_cast;
-using boost::chrono::nanoseconds;
-using boost::chrono::microseconds;
-using boost::chrono::milliseconds;
-using boost::chrono::seconds;
-using boost::chrono::minutes;
-using boost::chrono::hours;
-using boost::chrono::time_point_cast;
-using boost::chrono::system_clock;
-using boost::chrono::steady_clock;
-using boost::chrono::high_resolution_clock;
-#endif // defined(ASIO_HAS_BOOST_CHRONO)
-
-} // namespace chrono
-} // namespace asio
-
-#endif // ASIO_DETAIL_CHRONO_HPP
diff --git a/lib/asio/detail/chrono_time_traits.hpp b/lib/asio/detail/chrono_time_traits.hpp
deleted file mode 100644
index d1528f7..0000000
--- a/lib/asio/detail/chrono_time_traits.hpp
+++ /dev/null
@@ -1,190 +0,0 @@
-//
-// detail/chrono_time_traits.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_CHRONO_TIME_TRAITS_HPP
-#define ASIO_DETAIL_CHRONO_TIME_TRAITS_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/cstdint.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-// Helper template to compute the greatest common divisor.
-template <int64_t v1, int64_t v2>
-struct gcd { enum { value = gcd<v2, v1 % v2>::value }; };
-
-template <int64_t v1>
-struct gcd<v1, 0> { enum { value = v1 }; };
-
-// Adapts std::chrono clocks for use with a deadline timer.
-template <typename Clock, typename WaitTraits>
-struct chrono_time_traits
-{
-  // The clock type.
-  typedef Clock clock_type;
-
-  // The duration type of the clock.
-  typedef typename clock_type::duration duration_type;
-
-  // The time point type of the clock.
-  typedef typename clock_type::time_point time_type;
-
-  // The period of the clock.
-  typedef typename duration_type::period period_type;
-
-  // Get the current time.
-  static time_type now()
-  {
-    return clock_type::now();
-  }
-
-  // Add a duration to a time.
-  static time_type add(const time_type& t, const duration_type& d)
-  {
-    const time_type epoch;
-    if (t >= epoch)
-    {
-      if ((time_type::max)() - t < d)
-        return (time_type::max)();
-    }
-    else // t < epoch
-    {
-      if (-(t - (time_type::min)()) > d)
-        return (time_type::min)();
-    }
-
-    return t + d;
-  }
-
-  // Subtract one time from another.
-  static duration_type subtract(const time_type& t1, const time_type& t2)
-  {
-    const time_type epoch;
-    if (t1 >= epoch)
-    {
-      if (t2 >= epoch)
-      {
-        return t1 - t2;
-      }
-      else if (t2 == (time_type::min)())
-      {
-        return (duration_type::max)();
-      }
-      else if ((time_type::max)() - t1 < epoch - t2)
-      {
-        return (duration_type::max)();
-      }
-      else
-      {
-        return t1 - t2;
-      }
-    }
-    else // t1 < epoch
-    {
-      if (t2 < epoch)
-      {
-        return t1 - t2;
-      }
-      else if (t1 == (time_type::min)())
-      {
-        return (duration_type::min)();
-      }
-      else if ((time_type::max)() - t2 < epoch - t1)
-      {
-        return (duration_type::min)();
-      }
-      else
-      {
-        return -(t2 - t1);
-      }
-    }
-  }
-
-  // Test whether one time is less than another.
-  static bool less_than(const time_type& t1, const time_type& t2)
-  {
-    return t1 < t2;
-  }
-
-  // Implement just enough of the posix_time::time_duration interface to supply
-  // what the timer_queue requires.
-  class posix_time_duration
-  {
-  public:
-    explicit posix_time_duration(const duration_type& d)
-      : d_(d)
-    {
-    }
-
-    int64_t ticks() const
-    {
-      return d_.count();
-    }
-
-    int64_t total_seconds() const
-    {
-      return duration_cast<1, 1>();
-    }
-
-    int64_t total_milliseconds() const
-    {
-      return duration_cast<1, 1000>();
-    }
-
-    int64_t total_microseconds() const
-    {
-      return duration_cast<1, 1000000>();
-    }
-
-  private:
-    template <int64_t Num, int64_t Den>
-    int64_t duration_cast() const
-    {
-      const int64_t num1 = period_type::num / gcd<period_type::num, Num>::value;
-      const int64_t num2 = Num / gcd<period_type::num, Num>::value;
-
-      const int64_t den1 = period_type::den / gcd<period_type::den, Den>::value;
-      const int64_t den2 = Den / gcd<period_type::den, Den>::value;
-
-      const int64_t num = num1 * den2;
-      const int64_t den = num2 * den1;
-
-      if (num == 1 && den == 1)
-        return ticks();
-      else if (num != 1 && den == 1)
-        return ticks() * num;
-      else if (num == 1 && period_type::den != 1)
-        return ticks() / den;
-      else
-        return ticks() * num / den;
-    }
-
-    duration_type d_;
-  };
-
-  // Convert to POSIX duration type.
-  static posix_time_duration to_posix_duration(const duration_type& d)
-  {
-    return posix_time_duration(WaitTraits::to_wait_duration(d));
-  }
-};
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // ASIO_DETAIL_CHRONO_TIME_TRAITS_HPP
diff --git a/lib/asio/detail/completion_handler.hpp b/lib/asio/detail/completion_handler.hpp
deleted file mode 100644
index 58a2e6d..0000000
--- a/lib/asio/detail/completion_handler.hpp
+++ /dev/null
@@ -1,83 +0,0 @@
-//
-// detail/completion_handler.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_COMPLETION_HANDLER_HPP
-#define ASIO_DETAIL_COMPLETION_HANDLER_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-#include "asio/detail/fenced_block.hpp"
-#include "asio/detail/handler_alloc_helpers.hpp"
-#include "asio/detail/handler_work.hpp"
-#include "asio/detail/memory.hpp"
-#include "asio/detail/operation.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-template <typename Handler>
-class completion_handler : public operation
-{
-public:
-  ASIO_DEFINE_HANDLER_PTR(completion_handler);
-
-  completion_handler(Handler& h)
-    : operation(&completion_handler::do_complete),
-      handler_(ASIO_MOVE_CAST(Handler)(h))
-  {
-    handler_work<Handler>::start(handler_);
-  }
-
-  static void do_complete(void* owner, operation* base,
-      const asio::error_code& /*ec*/,
-      std::size_t /*bytes_transferred*/)
-  {
-    // Take ownership of the handler object.
-    completion_handler* h(static_cast<completion_handler*>(base));
-    ptr p = { asio::detail::addressof(h->handler_), h, h };
-    handler_work<Handler> w(h->handler_);
-
-    ASIO_HANDLER_COMPLETION((*h));
-
-    // Make a copy of the handler so that the memory can be deallocated before
-    // the upcall is made. Even if we're not about to make an upcall, a
-    // sub-object of the handler may be the true owner of the memory associated
-    // with the handler. Consequently, a local copy of the handler is required
-    // to ensure that any owning sub-object remains valid until after we have
-    // deallocated the memory here.
-    Handler handler(ASIO_MOVE_CAST(Handler)(h->handler_));
-    p.h = asio::detail::addressof(handler);
-    p.reset();
-
-    // Make the upcall if required.
-    if (owner)
-    {
-      fenced_block b(fenced_block::half);
-      ASIO_HANDLER_INVOCATION_BEGIN(());
-      w.complete(handler, handler);
-      ASIO_HANDLER_INVOCATION_END;
-    }
-  }
-
-private:
-  Handler handler_;
-};
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // ASIO_DETAIL_COMPLETION_HANDLER_HPP
diff --git a/lib/asio/detail/concurrency_hint.hpp b/lib/asio/detail/concurrency_hint.hpp
deleted file mode 100644
index 229124d..0000000
--- a/lib/asio/detail/concurrency_hint.hpp
+++ /dev/null
@@ -1,94 +0,0 @@
-//
-// detail/concurrency_hint.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_CONCURRENCY_HINT_HPP
-#define ASIO_DETAIL_CONCURRENCY_HINT_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-#include "asio/detail/noncopyable.hpp"
-
-// The concurrency hint ID and mask are used to identify when a "well-known"
-// concurrency hint value has been passed to the io_context.
-#define ASIO_CONCURRENCY_HINT_ID 0xA5100000u
-#define ASIO_CONCURRENCY_HINT_ID_MASK 0xFFFF0000u
-
-// If set, this bit indicates that the scheduler should perform locking.
-#define ASIO_CONCURRENCY_HINT_LOCKING_SCHEDULER 0x1u
-
-// If set, this bit indicates that the reactor should perform locking when
-// managing descriptor registrations.
-#define ASIO_CONCURRENCY_HINT_LOCKING_REACTOR_REGISTRATION 0x2u
-
-// If set, this bit indicates that the reactor should perform locking for I/O.
-#define ASIO_CONCURRENCY_HINT_LOCKING_REACTOR_IO 0x4u
-
-// Helper macro to determine if we have a special concurrency hint.
-#define ASIO_CONCURRENCY_HINT_IS_SPECIAL(hint) \
-  ((static_cast<unsigned>(hint) \
-    & ASIO_CONCURRENCY_HINT_ID_MASK) \
-      == ASIO_CONCURRENCY_HINT_ID)
-
-// Helper macro to determine if locking is enabled for a given facility.
-#define ASIO_CONCURRENCY_HINT_IS_LOCKING(facility, hint) \
-  (((static_cast<unsigned>(hint) \
-    & (ASIO_CONCURRENCY_HINT_ID_MASK \
-      | ASIO_CONCURRENCY_HINT_LOCKING_ ## facility)) \
-        ^ ASIO_CONCURRENCY_HINT_ID) != 0)
-
-// This special concurrency hint disables locking in both the scheduler and
-// reactor I/O. This hint has the following restrictions:
-//
-// - Care must be taken to ensure that all operations on the io_context and any
-//   of its associated I/O objects (such as sockets and timers) occur in only
-//   one thread at a time.
-//
-// - Asynchronous resolve operations fail with operation_not_supported.
-//
-// - If a signal_set is used with the io_context, signal_set objects cannot be
-//   used with any other io_context in the program.
-#define ASIO_CONCURRENCY_HINT_UNSAFE \
-  static_cast<int>(ASIO_CONCURRENCY_HINT_ID)
-
-// This special concurrency hint disables locking in the reactor I/O. This hint
-// has the following restrictions:
-//
-// - Care must be taken to ensure that run functions on the io_context, and all
-//   operations on the io_context's associated I/O objects (such as sockets and
-//   timers), occur in only one thread at a time.
-#define ASIO_CONCURRENCY_HINT_UNSAFE_IO \
-  static_cast<int>(ASIO_CONCURRENCY_HINT_ID \
-      | ASIO_CONCURRENCY_HINT_LOCKING_SCHEDULER \
-      | ASIO_CONCURRENCY_HINT_LOCKING_REACTOR_REGISTRATION)
-
-// The special concurrency hint provides full thread safety.
-#define ASIO_CONCURRENCY_HINT_SAFE \
-  static_cast<int>(ASIO_CONCURRENCY_HINT_ID \
-      | ASIO_CONCURRENCY_HINT_LOCKING_SCHEDULER \
-      | ASIO_CONCURRENCY_HINT_LOCKING_REACTOR_REGISTRATION \
-      | ASIO_CONCURRENCY_HINT_LOCKING_REACTOR_IO)
-
-// This #define may be overridden at compile time to specify a program-wide
-// default concurrency hint, used by the zero-argument io_context constructor.
-#if !defined(ASIO_CONCURRENCY_HINT_DEFAULT)
-# define ASIO_CONCURRENCY_HINT_DEFAULT -1
-#endif // !defined(ASIO_CONCURRENCY_HINT_DEFAULT)
-
-// This #define may be overridden at compile time to specify a program-wide
-// concurrency hint, used by the one-argument io_context constructor when
-// passed a value of 1.
-#if !defined(ASIO_CONCURRENCY_HINT_1)
-# define ASIO_CONCURRENCY_HINT_1 1
-#endif // !defined(ASIO_CONCURRENCY_HINT_DEFAULT)
-
-#endif // ASIO_DETAIL_CONCURRENCY_HINT_HPP
diff --git a/lib/asio/detail/conditionally_enabled_event.hpp b/lib/asio/detail/conditionally_enabled_event.hpp
deleted file mode 100644
index 0fda401..0000000
--- a/lib/asio/detail/conditionally_enabled_event.hpp
+++ /dev/null
@@ -1,112 +0,0 @@
-//
-// detail/conditionally_enabled_event.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_CONDITIONALLY_ENABLED_EVENT_HPP
-#define ASIO_DETAIL_CONDITIONALLY_ENABLED_EVENT_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-#include "asio/detail/conditionally_enabled_mutex.hpp"
-#include "asio/detail/event.hpp"
-#include "asio/detail/noncopyable.hpp"
-#include "asio/detail/null_event.hpp"
-#include "asio/detail/scoped_lock.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-// Mutex adapter used to conditionally enable or disable locking.
-class conditionally_enabled_event
-  : private noncopyable
-{
-public:
-  // Constructor.
-  conditionally_enabled_event()
-  {
-  }
-
-  // Destructor.
-  ~conditionally_enabled_event()
-  {
-  }
-
-  // Signal the event. (Retained for backward compatibility.)
-  void signal(conditionally_enabled_mutex::scoped_lock& lock)
-  {
-    if (lock.mutex_.enabled_)
-      event_.signal(lock);
-  }
-
-  // Signal all waiters.
-  void signal_all(conditionally_enabled_mutex::scoped_lock& lock)
-  {
-    if (lock.mutex_.enabled_)
-      event_.signal_all(lock);
-  }
-
-  // Unlock the mutex and signal one waiter.
-  void unlock_and_signal_one(
-      conditionally_enabled_mutex::scoped_lock& lock)
-  {
-    if (lock.mutex_.enabled_)
-      event_.unlock_and_signal_one(lock);
-  }
-
-  // If there's a waiter, unlock the mutex and signal it.
-  bool maybe_unlock_and_signal_one(
-      conditionally_enabled_mutex::scoped_lock& lock)
-  {
-    if (lock.mutex_.enabled_)
-      return event_.maybe_unlock_and_signal_one(lock);
-    else
-      return false;
-  }
-
-  // Reset the event.
-  void clear(conditionally_enabled_mutex::scoped_lock& lock)
-  {
-    if (lock.mutex_.enabled_)
-      event_.clear(lock);
-  }
-
-  // Wait for the event to become signalled.
-  void wait(conditionally_enabled_mutex::scoped_lock& lock)
-  {
-    if (lock.mutex_.enabled_)
-      event_.wait(lock);
-    else
-      null_event().wait(lock);
-  }
-
-  // Timed wait for the event to become signalled.
-  bool wait_for_usec(
-      conditionally_enabled_mutex::scoped_lock& lock, long usec)
-  {
-    if (lock.mutex_.enabled_)
-      return event_.wait_for_usec(lock, usec);
-    else
-      return null_event().wait_for_usec(lock, usec);
-  }
-
-private:
-  asio::detail::event event_;
-};
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // ASIO_DETAIL_CONDITIONALLY_ENABLED_EVENT_HPP
diff --git a/lib/asio/detail/conditionally_enabled_mutex.hpp b/lib/asio/detail/conditionally_enabled_mutex.hpp
deleted file mode 100644
index 2872db9..0000000
--- a/lib/asio/detail/conditionally_enabled_mutex.hpp
+++ /dev/null
@@ -1,149 +0,0 @@
-//
-// detail/conditionally_enabled_mutex.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_CONDITIONALLY_ENABLED_MUTEX_HPP
-#define ASIO_DETAIL_CONDITIONALLY_ENABLED_MUTEX_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-#include "asio/detail/mutex.hpp"
-#include "asio/detail/noncopyable.hpp"
-#include "asio/detail/scoped_lock.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-// Mutex adapter used to conditionally enable or disable locking.
-class conditionally_enabled_mutex
-  : private noncopyable
-{
-public:
-  // Helper class to lock and unlock a mutex automatically.
-  class scoped_lock
-    : private noncopyable
-  {
-  public:
-    // Tag type used to distinguish constructors.
-    enum adopt_lock_t { adopt_lock };
-
-    // Constructor adopts a lock that is already held.
-    scoped_lock(conditionally_enabled_mutex& m, adopt_lock_t)
-      : mutex_(m),
-        locked_(m.enabled_)
-    {
-    }
-
-    // Constructor acquires the lock.
-    explicit scoped_lock(conditionally_enabled_mutex& m)
-      : mutex_(m)
-    {
-      if (m.enabled_)
-      {
-        mutex_.mutex_.lock();
-        locked_ = true;
-      }
-      else
-        locked_ = false;
-    }
-
-    // Destructor releases the lock.
-    ~scoped_lock()
-    {
-      if (locked_)
-        mutex_.mutex_.unlock();
-    }
-
-    // Explicitly acquire the lock.
-    void lock()
-    {
-      if (mutex_.enabled_ && !locked_)
-      {
-        mutex_.mutex_.lock();
-        locked_ = true;
-      }
-    }
-
-    // Explicitly release the lock.
-    void unlock()
-    {
-      if (locked_)
-      {
-        mutex_.unlock();
-        locked_ = false;
-      }
-    }
-
-    // Test whether the lock is held.
-    bool locked() const
-    {
-      return locked_;
-    }
-
-    // Get the underlying mutex.
-    asio::detail::mutex& mutex()
-    {
-      return mutex_.mutex_;
-    }
-
-  private:
-    friend class conditionally_enabled_event;
-    conditionally_enabled_mutex& mutex_;
-    bool locked_;
-  };
-
-  // Constructor.
-  explicit conditionally_enabled_mutex(bool enabled)
-    : enabled_(enabled)
-  {
-  }
-
-  // Destructor.
-  ~conditionally_enabled_mutex()
-  {
-  }
-
-  // Determine whether locking is enabled.
-  bool enabled() const
-  {
-    return enabled_;
-  }
-
-  // Lock the mutex.
-  void lock()
-  {
-    if (enabled_)
-      mutex_.lock();
-  }
-
-  // Unlock the mutex.
-  void unlock()
-  {
-    if (enabled_)
-      mutex_.unlock();
-  }
-
-private:
-  friend class scoped_lock;
-  friend class conditionally_enabled_event;
-  asio::detail::mutex mutex_;
-  const bool enabled_;
-};
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // ASIO_DETAIL_CONDITIONALLY_ENABLED_MUTEX_HPP
diff --git a/lib/asio/detail/config.hpp b/lib/asio/detail/config.hpp
deleted file mode 100644
index cde334e..0000000
--- a/lib/asio/detail/config.hpp
+++ /dev/null
@@ -1,1437 +0,0 @@
-//
-// detail/config.hpp
-// ~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_CONFIG_HPP
-#define ASIO_DETAIL_CONFIG_HPP
-
-#if defined(ASIO_STANDALONE)
-# define ASIO_DISABLE_BOOST_ARRAY 1
-# define ASIO_DISABLE_BOOST_ASSERT 1
-# define ASIO_DISABLE_BOOST_BIND 1
-# define ASIO_DISABLE_BOOST_CHRONO 1
-# define ASIO_DISABLE_BOOST_DATE_TIME 1
-# define ASIO_DISABLE_BOOST_LIMITS 1
-# define ASIO_DISABLE_BOOST_REGEX 1
-# define ASIO_DISABLE_BOOST_STATIC_CONSTANT 1
-# define ASIO_DISABLE_BOOST_THROW_EXCEPTION 1
-# define ASIO_DISABLE_BOOST_WORKAROUND 1
-#else // defined(ASIO_STANDALONE)
-# include <boost/config.hpp>
-# include <boost/version.hpp>
-# define ASIO_HAS_BOOST_CONFIG 1
-#endif // defined(ASIO_STANDALONE)
-
-// Default to a header-only implementation. The user must specifically request
-// separate compilation by defining either ASIO_SEPARATE_COMPILATION or
-// ASIO_DYN_LINK (as a DLL/shared library implies separate compilation).
-#if !defined(ASIO_HEADER_ONLY)
-# if !defined(ASIO_SEPARATE_COMPILATION)
-#  if !defined(ASIO_DYN_LINK)
-#   define ASIO_HEADER_ONLY 1
-#  endif // !defined(ASIO_DYN_LINK)
-# endif // !defined(ASIO_SEPARATE_COMPILATION)
-#endif // !defined(ASIO_HEADER_ONLY)
-
-#if defined(ASIO_HEADER_ONLY)
-# define ASIO_DECL inline
-#else // defined(ASIO_HEADER_ONLY)
-# if defined(_MSC_VER) || defined(__BORLANDC__) || defined(__CODEGEARC__)
-// We need to import/export our code only if the user has specifically asked
-// for it by defining ASIO_DYN_LINK.
-#  if defined(ASIO_DYN_LINK)
-// Export if this is our own source, otherwise import.
-#   if defined(ASIO_SOURCE)
-#    define ASIO_DECL __declspec(dllexport)
-#   else // defined(ASIO_SOURCE)
-#    define ASIO_DECL __declspec(dllimport)
-#   endif // defined(ASIO_SOURCE)
-#  endif // defined(ASIO_DYN_LINK)
-# endif // defined(_MSC_VER) || defined(__BORLANDC__) || defined(__CODEGEARC__)
-#endif // defined(ASIO_HEADER_ONLY)
-
-// If ASIO_DECL isn't defined yet define it now.
-#if !defined(ASIO_DECL)
-# define ASIO_DECL
-#endif // !defined(ASIO_DECL)
-
-// Microsoft Visual C++ detection.
-#if !defined(ASIO_MSVC)
-# if defined(ASIO_HAS_BOOST_CONFIG) && defined(BOOST_MSVC)
-#  define ASIO_MSVC BOOST_MSVC
-# elif defined(_MSC_VER) && (defined(__INTELLISENSE__) \
-      || (!defined(__MWERKS__) && !defined(__EDG_VERSION__)))
-#  define ASIO_MSVC _MSC_VER
-# endif // defined(ASIO_HAS_BOOST_CONFIG) && defined(BOOST_MSVC)
-#endif // !defined(ASIO_MSVC)
-#if defined(ASIO_MSVC)
-# include <ciso646> // Needed for _HAS_CXX17.
-#endif // defined(ASIO_MSVC)
-
-// Clang / libc++ detection.
-#if defined(__clang__)
-# if (__cplusplus >= 201103)
-#  if __has_include(<__config>)
-#   include <__config>
-#   if defined(_LIBCPP_VERSION)
-#    define ASIO_HAS_CLANG_LIBCXX 1
-#   endif // defined(_LIBCPP_VERSION)
-#  endif // __has_include(<__config>)
-# endif // (__cplusplus >= 201103)
-#endif // defined(__clang__)
-
-// Android platform detection.
-#if defined(__ANDROID__)
-# include <android/api-level.h>
-#endif // defined(__ANDROID__)
-
-// Support move construction and assignment on compilers known to allow it.
-#if !defined(ASIO_HAS_MOVE)
-# if !defined(ASIO_DISABLE_MOVE)
-#  if defined(__clang__)
-#   if __has_feature(__cxx_rvalue_references__)
-#    define ASIO_HAS_MOVE 1
-#   endif // __has_feature(__cxx_rvalue_references__)
-#  endif // defined(__clang__)
-#  if defined(__GNUC__)
-#   if ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 5)) || (__GNUC__ > 4)
-#    if defined(__GXX_EXPERIMENTAL_CXX0X__)
-#     define ASIO_HAS_MOVE 1
-#    endif // defined(__GXX_EXPERIMENTAL_CXX0X__)
-#   endif // ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 5)) || (__GNUC__ > 4)
-#  endif // defined(__GNUC__)
-#  if defined(ASIO_MSVC)
-#   if (_MSC_VER >= 1700)
-#    define ASIO_HAS_MOVE 1
-#   endif // (_MSC_VER >= 1700)
-#  endif // defined(ASIO_MSVC)
-# endif // !defined(ASIO_DISABLE_MOVE)
-#endif // !defined(ASIO_HAS_MOVE)
-
-// If ASIO_MOVE_CAST isn't defined, and move support is available, define
-// ASIO_MOVE_ARG and ASIO_MOVE_CAST to take advantage of rvalue
-// references and perfect forwarding.
-#if defined(ASIO_HAS_MOVE) && !defined(ASIO_MOVE_CAST)
-# define ASIO_MOVE_ARG(type) type&&
-# define ASIO_MOVE_ARG2(type1, type2) type1, type2&&
-# define ASIO_MOVE_CAST(type) static_cast<type&&>
-# define ASIO_MOVE_CAST2(type1, type2) static_cast<type1, type2&&>
-#endif // defined(ASIO_HAS_MOVE) && !defined(ASIO_MOVE_CAST)
-
-// If ASIO_MOVE_CAST still isn't defined, default to a C++03-compatible
-// implementation. Note that older g++ and MSVC versions don't like it when you
-// pass a non-member function through a const reference, so for most compilers
-// we'll play it safe and stick with the old approach of passing the handler by
-// value.
-#if !defined(ASIO_MOVE_CAST)
-# if defined(__GNUC__)
-#  if ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 1)) || (__GNUC__ > 4)
-#   define ASIO_MOVE_ARG(type) const type&
-#  else // ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 1)) || (__GNUC__ > 4)
-#   define ASIO_MOVE_ARG(type) type
-#  endif // ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 1)) || (__GNUC__ > 4)
-# elif defined(ASIO_MSVC)
-#  if (_MSC_VER >= 1400)
-#   define ASIO_MOVE_ARG(type) const type&
-#  else // (_MSC_VER >= 1400)
-#   define ASIO_MOVE_ARG(type) type
-#  endif // (_MSC_VER >= 1400)
-# else
-#  define ASIO_MOVE_ARG(type) type
-# endif
-# define ASIO_MOVE_CAST(type) static_cast<const type&>
-# define ASIO_MOVE_CAST2(type1, type2) static_cast<const type1, type2&>
-#endif // !defined(ASIO_MOVE_CAST)
-
-// Support variadic templates on compilers known to allow it.
-#if !defined(ASIO_HAS_VARIADIC_TEMPLATES)
-# if !defined(ASIO_DISABLE_VARIADIC_TEMPLATES)
-#  if defined(__clang__)
-#   if __has_feature(__cxx_variadic_templates__)
-#    define ASIO_HAS_VARIADIC_TEMPLATES 1
-#   endif // __has_feature(__cxx_variadic_templates__)
-#  endif // defined(__clang__)
-#  if defined(__GNUC__)
-#   if ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 3)) || (__GNUC__ > 4)
-#    if defined(__GXX_EXPERIMENTAL_CXX0X__)
-#     define ASIO_HAS_VARIADIC_TEMPLATES 1
-#    endif // defined(__GXX_EXPERIMENTAL_CXX0X__)
-#   endif // ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 3)) || (__GNUC__ > 4)
-#  endif // defined(__GNUC__)
-#  if defined(ASIO_MSVC)
-#   if (_MSC_VER >= 1900)
-#    define ASIO_HAS_VARIADIC_TEMPLATES 1
-#   endif // (_MSC_VER >= 1900)
-#  endif // defined(ASIO_MSVC)
-# endif // !defined(ASIO_DISABLE_VARIADIC_TEMPLATES)
-#endif // !defined(ASIO_HAS_VARIADIC_TEMPLATES)
-
-// Support deleted functions on compilers known to allow it.
-#if !defined(ASIO_DELETED)
-# if defined(__GNUC__)
-#  if ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 7)) || (__GNUC__ > 4)
-#   if defined(__GXX_EXPERIMENTAL_CXX0X__)
-#    define ASIO_DELETED = delete
-#   endif // defined(__GXX_EXPERIMENTAL_CXX0X__)
-#  endif // ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 7)) || (__GNUC__ > 4)
-# endif // defined(__GNUC__)
-# if defined(__clang__)
-#  if __has_feature(__cxx_deleted_functions__)
-#   define ASIO_DELETED = delete
-#  endif // __has_feature(__cxx_deleted_functions__)
-# endif // defined(__clang__)
-# if defined(ASIO_MSVC)
-#  if (_MSC_VER >= 1900)
-#   define ASIO_DELETED = delete
-#  endif // (_MSC_VER >= 1900)
-# endif // defined(ASIO_MSVC)
-# if !defined(ASIO_DELETED)
-#  define ASIO_DELETED
-# endif // !defined(ASIO_DELETED)
-#endif // !defined(ASIO_DELETED)
-
-// Support constexpr on compilers known to allow it.
-#if !defined(ASIO_HAS_CONSTEXPR)
-# if !defined(ASIO_DISABLE_CONSTEXPR)
-#  if defined(__clang__)
-#   if __has_feature(__cxx_constexpr__)
-#    define ASIO_HAS_CONSTEXPR 1
-#   endif // __has_feature(__cxx_constexr__)
-#  endif // defined(__clang__)
-#  if defined(__GNUC__)
-#   if ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 6)) || (__GNUC__ > 4)
-#    if defined(__GXX_EXPERIMENTAL_CXX0X__)
-#     define ASIO_HAS_CONSTEXPR 1
-#    endif // defined(__GXX_EXPERIMENTAL_CXX0X__)
-#   endif // ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 6)) || (__GNUC__ > 4)
-#  endif // defined(__GNUC__)
-#  if defined(ASIO_MSVC)
-#   if (_MSC_VER >= 1900)
-#    define ASIO_HAS_CONSTEXPR 1
-#   endif // (_MSC_VER >= 1900)
-#  endif // defined(ASIO_MSVC)
-# endif // !defined(ASIO_DISABLE_CONSTEXPR)
-#endif // !defined(ASIO_HAS_CONSTEXPR)
-#if !defined(ASIO_CONSTEXPR)
-# if defined(ASIO_HAS_CONSTEXPR)
-#  define ASIO_CONSTEXPR constexpr
-# else // defined(ASIO_HAS_CONSTEXPR)
-#  define ASIO_CONSTEXPR
-# endif // defined(ASIO_HAS_CONSTEXPR)
-#endif // !defined(ASIO_CONSTEXPR)
-
-// Support noexcept on compilers known to allow it.
-#if !defined(ASIO_NOEXCEPT)
-# if !defined(ASIO_DISABLE_NOEXCEPT)
-#  if (BOOST_VERSION >= 105300)
-#   define ASIO_NOEXCEPT BOOST_NOEXCEPT
-#   define ASIO_NOEXCEPT_OR_NOTHROW BOOST_NOEXCEPT_OR_NOTHROW
-#  elif defined(__clang__)
-#   if __has_feature(__cxx_noexcept__)
-#    define ASIO_NOEXCEPT noexcept(true)
-#    define ASIO_NOEXCEPT_OR_NOTHROW noexcept(true)
-#   endif // __has_feature(__cxx_noexcept__)
-#  elif defined(__GNUC__)
-#   if ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 7)) || (__GNUC__ > 4)
-#    if defined(__GXX_EXPERIMENTAL_CXX0X__)
-#      define ASIO_NOEXCEPT noexcept(true)
-#      define ASIO_NOEXCEPT_OR_NOTHROW noexcept(true)
-#    endif // defined(__GXX_EXPERIMENTAL_CXX0X__)
-#   endif // ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 7)) || (__GNUC__ > 4)
-#  elif defined(ASIO_MSVC)
-#   if (_MSC_VER >= 1900)
-#    define ASIO_NOEXCEPT noexcept(true)
-#    define ASIO_NOEXCEPT_OR_NOTHROW noexcept(true)
-#   endif // (_MSC_VER >= 1900)
-#  endif // defined(ASIO_MSVC)
-# endif // !defined(ASIO_DISABLE_NOEXCEPT)
-# if !defined(ASIO_NOEXCEPT)
-#  define ASIO_NOEXCEPT
-# endif // !defined(ASIO_NOEXCEPT)
-# if !defined(ASIO_NOEXCEPT_OR_NOTHROW)
-#  define ASIO_NOEXCEPT_OR_NOTHROW throw()
-# endif // !defined(ASIO_NOEXCEPT_OR_NOTHROW)
-#endif // !defined(ASIO_NOEXCEPT)
-
-// Support automatic type deduction on compilers known to support it.
-#if !defined(ASIO_HAS_DECLTYPE)
-# if !defined(ASIO_DISABLE_DECLTYPE)
-#  if defined(__clang__)
-#   if __has_feature(__cxx_decltype__)
-#    define ASIO_HAS_DECLTYPE 1
-#   endif // __has_feature(__cxx_decltype__)
-#  endif // defined(__clang__)
-#  if defined(__GNUC__)
-#   if ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 6)) || (__GNUC__ > 4)
-#    if defined(__GXX_EXPERIMENTAL_CXX0X__)
-#     define ASIO_HAS_DECLTYPE 1
-#    endif // defined(__GXX_EXPERIMENTAL_CXX0X__)
-#   endif // ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 6)) || (__GNUC__ > 4)
-#  endif // defined(__GNUC__)
-#  if defined(ASIO_MSVC)
-#   if (_MSC_VER >= 1700)
-#    define ASIO_HAS_DECLTYPE 1
-#   endif // (_MSC_VER >= 1700)
-#  endif // defined(ASIO_MSVC)
-# endif // !defined(ASIO_DISABLE_DECLTYPE)
-#endif // !defined(ASIO_HAS_DECLTYPE)
-
-// Support alias templates on compilers known to allow it.
-#if !defined(ASIO_HAS_ALIAS_TEMPLATES)
-# if !defined(ASIO_DISABLE_ALIAS_TEMPLATES)
-#  if defined(__clang__)
-#   if __has_feature(__cxx_alias_templates__)
-#    define ASIO_HAS_ALIAS_TEMPLATES 1
-#   endif // __has_feature(__cxx_alias_templates__)
-#  endif // defined(__clang__)
-#  if defined(__GNUC__)
-#   if ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 7)) || (__GNUC__ > 4)
-#    if defined(__GXX_EXPERIMENTAL_CXX0X__)
-#     define ASIO_HAS_ALIAS_TEMPLATES 1
-#    endif // defined(__GXX_EXPERIMENTAL_CXX0X__)
-#   endif // ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 7)) || (__GNUC__ > 4)
-#  endif // defined(__GNUC__)
-#  if defined(ASIO_MSVC)
-#   if (_MSC_VER >= 1900)
-#    define ASIO_HAS_ALIAS_TEMPLATES 1
-#   endif // (_MSC_VER >= 1900)
-#  endif // defined(ASIO_MSVC)
-# endif // !defined(ASIO_DISABLE_ALIAS_TEMPLATES)
-#endif // !defined(ASIO_HAS_ALIAS_TEMPLATES)
-
-// Standard library support for system errors.
-#if !defined(ASIO_HAS_STD_SYSTEM_ERROR)
-# if !defined(ASIO_DISABLE_STD_SYSTEM_ERROR)
-#  if defined(__clang__)
-#   if defined(ASIO_HAS_CLANG_LIBCXX)
-#    define ASIO_HAS_STD_SYSTEM_ERROR 1
-#   elif (__cplusplus >= 201103)
-#    if __has_include(<system_error>)
-#     define ASIO_HAS_STD_SYSTEM_ERROR 1
-#    endif // __has_include(<system_error>)
-#   endif // (__cplusplus >= 201103)
-#  endif // defined(__clang__)
-#  if defined(__GNUC__)
-#   if ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 6)) || (__GNUC__ > 4)
-#    if defined(__GXX_EXPERIMENTAL_CXX0X__)
-#     define ASIO_HAS_STD_SYSTEM_ERROR 1
-#    endif // defined(__GXX_EXPERIMENTAL_CXX0X__)
-#   endif // ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 6)) || (__GNUC__ > 4)
-#  endif // defined(__GNUC__)
-#  if defined(ASIO_MSVC)
-#   if (_MSC_VER >= 1700)
-#    define ASIO_HAS_STD_SYSTEM_ERROR 1
-#   endif // (_MSC_VER >= 1700)
-#  endif // defined(ASIO_MSVC)
-# endif // !defined(ASIO_DISABLE_STD_SYSTEM_ERROR)
-#endif // !defined(ASIO_HAS_STD_SYSTEM_ERROR)
-
-// Compliant C++11 compilers put noexcept specifiers on error_category members.
-#if !defined(ASIO_ERROR_CATEGORY_NOEXCEPT)
-# if (BOOST_VERSION >= 105300)
-#  define ASIO_ERROR_CATEGORY_NOEXCEPT BOOST_NOEXCEPT
-# elif defined(__clang__)
-#  if __has_feature(__cxx_noexcept__)
-#   define ASIO_ERROR_CATEGORY_NOEXCEPT noexcept(true)
-#  endif // __has_feature(__cxx_noexcept__)
-# elif defined(__GNUC__)
-#  if ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 7)) || (__GNUC__ > 4)
-#   if defined(__GXX_EXPERIMENTAL_CXX0X__)
-#     define ASIO_ERROR_CATEGORY_NOEXCEPT noexcept(true)
-#   endif // defined(__GXX_EXPERIMENTAL_CXX0X__)
-#  endif // ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 7)) || (__GNUC__ > 4)
-# elif defined(ASIO_MSVC)
-#  if (_MSC_VER >= 1900)
-#   define ASIO_ERROR_CATEGORY_NOEXCEPT noexcept(true)
-#  endif // (_MSC_VER >= 1900)
-# endif // defined(ASIO_MSVC)
-# if !defined(ASIO_ERROR_CATEGORY_NOEXCEPT)
-#  define ASIO_ERROR_CATEGORY_NOEXCEPT
-# endif // !defined(ASIO_ERROR_CATEGORY_NOEXCEPT)
-#endif // !defined(ASIO_ERROR_CATEGORY_NOEXCEPT)
-
-// Standard library support for arrays.
-#if !defined(ASIO_HAS_STD_ARRAY)
-# if !defined(ASIO_DISABLE_STD_ARRAY)
-#  if defined(__clang__)
-#   if defined(ASIO_HAS_CLANG_LIBCXX)
-#    define ASIO_HAS_STD_ARRAY 1
-#   elif (__cplusplus >= 201103)
-#    if __has_include(<array>)
-#     define ASIO_HAS_STD_ARRAY 1
-#    endif // __has_include(<array>)
-#   endif // (__cplusplus >= 201103)
-#  endif // defined(__clang__)
-#  if defined(__GNUC__)
-#   if ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 3)) || (__GNUC__ > 4)
-#    if defined(__GXX_EXPERIMENTAL_CXX0X__)
-#     define ASIO_HAS_STD_ARRAY 1
-#    endif // defined(__GXX_EXPERIMENTAL_CXX0X__)
-#   endif // ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 3)) || (__GNUC__ > 4)
-#  endif // defined(__GNUC__)
-#  if defined(ASIO_MSVC)
-#   if (_MSC_VER >= 1600)
-#    define ASIO_HAS_STD_ARRAY 1
-#   endif // (_MSC_VER >= 1600)
-#  endif // defined(ASIO_MSVC)
-# endif // !defined(ASIO_DISABLE_STD_ARRAY)
-#endif // !defined(ASIO_HAS_STD_ARRAY)
-
-// Standard library support for shared_ptr and weak_ptr.
-#if !defined(ASIO_HAS_STD_SHARED_PTR)
-# if !defined(ASIO_DISABLE_STD_SHARED_PTR)
-#  if defined(__clang__)
-#   if defined(ASIO_HAS_CLANG_LIBCXX)
-#    define ASIO_HAS_STD_SHARED_PTR 1
-#   elif (__cplusplus >= 201103)
-#    define ASIO_HAS_STD_SHARED_PTR 1
-#   endif // (__cplusplus >= 201103)
-#  endif // defined(__clang__)
-#  if defined(__GNUC__)
-#   if ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 3)) || (__GNUC__ > 4)
-#    if defined(__GXX_EXPERIMENTAL_CXX0X__)
-#     define ASIO_HAS_STD_SHARED_PTR 1
-#    endif // defined(__GXX_EXPERIMENTAL_CXX0X__)
-#   endif // ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 3)) || (__GNUC__ > 4)
-#  endif // defined(__GNUC__)
-#  if defined(ASIO_MSVC)
-#   if (_MSC_VER >= 1600)
-#    define ASIO_HAS_STD_SHARED_PTR 1
-#   endif // (_MSC_VER >= 1600)
-#  endif // defined(ASIO_MSVC)
-# endif // !defined(ASIO_DISABLE_STD_SHARED_PTR)
-#endif // !defined(ASIO_HAS_STD_SHARED_PTR)
-
-// Standard library support for allocator_arg_t.
-#if !defined(ASIO_HAS_STD_ALLOCATOR_ARG)
-# if !defined(ASIO_DISABLE_STD_ALLOCATOR_ARG)
-#  if defined(__clang__)
-#   if defined(ASIO_HAS_CLANG_LIBCXX)
-#    define ASIO_HAS_STD_ALLOCATOR_ARG 1
-#   elif (__cplusplus >= 201103)
-#    define ASIO_HAS_STD_ALLOCATOR_ARG 1
-#   endif // (__cplusplus >= 201103)
-#  endif // defined(__clang__)
-#  if defined(__GNUC__)
-#   if ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 6)) || (__GNUC__ > 4)
-#    if defined(__GXX_EXPERIMENTAL_CXX0X__)
-#     define ASIO_HAS_STD_ALLOCATOR_ARG 1
-#    endif // defined(__GXX_EXPERIMENTAL_CXX0X__)
-#   endif // ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 6)) || (__GNUC__ > 4)
-#  endif // defined(__GNUC__)
-#  if defined(ASIO_MSVC)
-#   if (_MSC_VER >= 1600)
-#    define ASIO_HAS_STD_ALLOCATOR_ARG 1
-#   endif // (_MSC_VER >= 1600)
-#  endif // defined(ASIO_MSVC)
-# endif // !defined(ASIO_DISABLE_STD_ALLOCATOR_ARG)
-#endif // !defined(ASIO_HAS_STD_ALLOCATOR_ARG)
-
-// Standard library support for atomic operations.
-#if !defined(ASIO_HAS_STD_ATOMIC)
-# if !defined(ASIO_DISABLE_STD_ATOMIC)
-#  if defined(__clang__)
-#   if defined(ASIO_HAS_CLANG_LIBCXX)
-#    define ASIO_HAS_STD_ATOMIC 1
-#   elif (__cplusplus >= 201103)
-#    if __has_include(<atomic>)
-#     define ASIO_HAS_STD_ATOMIC 1
-#    endif // __has_include(<atomic>)
-#   endif // (__cplusplus >= 201103)
-#  endif // defined(__clang__)
-#  if defined(__GNUC__)
-#   if ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 7)) || (__GNUC__ > 4)
-#    if defined(__GXX_EXPERIMENTAL_CXX0X__)
-#     define ASIO_HAS_STD_ATOMIC 1
-#    endif // defined(__GXX_EXPERIMENTAL_CXX0X__)
-#   endif // ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 7)) || (__GNUC__ > 4)
-#  endif // defined(__GNUC__)
-#  if defined(ASIO_MSVC)
-#   if (_MSC_VER >= 1700)
-#    define ASIO_HAS_STD_ATOMIC 1
-#   endif // (_MSC_VER >= 1700)
-#  endif // defined(ASIO_MSVC)
-# endif // !defined(ASIO_DISABLE_STD_ATOMIC)
-#endif // !defined(ASIO_HAS_STD_ATOMIC)
-
-// Standard library support for chrono. Some standard libraries (such as the
-// libstdc++ shipped with gcc 4.6) provide monotonic_clock as per early C++0x
-// drafts, rather than the eventually standardised name of steady_clock.
-#if !defined(ASIO_HAS_STD_CHRONO)
-# if !defined(ASIO_DISABLE_STD_CHRONO)
-#  if defined(__clang__)
-#   if defined(ASIO_HAS_CLANG_LIBCXX)
-#    define ASIO_HAS_STD_CHRONO 1
-#   elif (__cplusplus >= 201103)
-#    if __has_include(<chrono>)
-#     define ASIO_HAS_STD_CHRONO 1
-#    endif // __has_include(<chrono>)
-#   endif // (__cplusplus >= 201103)
-#  endif // defined(__clang__)
-#  if defined(__GNUC__)
-#   if ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 6)) || (__GNUC__ > 4)
-#    if defined(__GXX_EXPERIMENTAL_CXX0X__)
-#     define ASIO_HAS_STD_CHRONO 1
-#     if ((__GNUC__ == 4) && (__GNUC_MINOR__ == 6))
-#      define ASIO_HAS_STD_CHRONO_MONOTONIC_CLOCK 1
-#     endif // ((__GNUC__ == 4) && (__GNUC_MINOR__ == 6))
-#    endif // defined(__GXX_EXPERIMENTAL_CXX0X__)
-#   endif // ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 6)) || (__GNUC__ > 4)
-#  endif // defined(__GNUC__)
-#  if defined(ASIO_MSVC)
-#   if (_MSC_VER >= 1700)
-#    define ASIO_HAS_STD_CHRONO 1
-#   endif // (_MSC_VER >= 1700)
-#  endif // defined(ASIO_MSVC)
-# endif // !defined(ASIO_DISABLE_STD_CHRONO)
-#endif // !defined(ASIO_HAS_STD_CHRONO)
-
-// Boost support for chrono.
-#if !defined(ASIO_HAS_BOOST_CHRONO)
-# if !defined(ASIO_DISABLE_BOOST_CHRONO)
-#  if (BOOST_VERSION >= 104700)
-#   define ASIO_HAS_BOOST_CHRONO 1
-#  endif // (BOOST_VERSION >= 104700)
-# endif // !defined(ASIO_DISABLE_BOOST_CHRONO)
-#endif // !defined(ASIO_HAS_BOOST_CHRONO)
-
-// Some form of chrono library is available.
-#if !defined(ASIO_HAS_CHRONO)
-# if defined(ASIO_HAS_STD_CHRONO) \
-    || defined(ASIO_HAS_BOOST_CHRONO)
-#  define ASIO_HAS_CHRONO 1
-# endif // defined(ASIO_HAS_STD_CHRONO)
-        // || defined(ASIO_HAS_BOOST_CHRONO)
-#endif // !defined(ASIO_HAS_CHRONO)
-
-// Boost support for the DateTime library.
-#if !defined(ASIO_HAS_BOOST_DATE_TIME)
-# if !defined(ASIO_DISABLE_BOOST_DATE_TIME)
-#  define ASIO_HAS_BOOST_DATE_TIME 1
-# endif // !defined(ASIO_DISABLE_BOOST_DATE_TIME)
-#endif // !defined(ASIO_HAS_BOOST_DATE_TIME)
-
-// Standard library support for addressof.
-#if !defined(ASIO_HAS_STD_ADDRESSOF)
-# if !defined(ASIO_DISABLE_STD_ADDRESSOF)
-#  if defined(__clang__)
-#   if defined(ASIO_HAS_CLANG_LIBCXX)
-#    define ASIO_HAS_STD_ADDRESSOF 1
-#   elif (__cplusplus >= 201103)
-#    define ASIO_HAS_STD_ADDRESSOF 1
-#   endif // (__cplusplus >= 201103)
-#  endif // defined(__clang__)
-#  if defined(__GNUC__)
-#   if ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 6)) || (__GNUC__ > 4)
-#    if defined(__GXX_EXPERIMENTAL_CXX0X__)
-#     define ASIO_HAS_STD_ADDRESSOF 1
-#    endif // defined(__GXX_EXPERIMENTAL_CXX0X__)
-#   endif // ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 6)) || (__GNUC__ > 4)
-#  endif // defined(__GNUC__)
-#  if defined(ASIO_MSVC)
-#   if (_MSC_VER >= 1700)
-#    define ASIO_HAS_STD_ADDRESSOF 1
-#   endif // (_MSC_VER >= 1700)
-#  endif // defined(ASIO_MSVC)
-# endif // !defined(ASIO_DISABLE_STD_ADDRESSOF)
-#endif // !defined(ASIO_HAS_STD_ADDRESSOF)
-
-// Standard library support for the function class.
-#if !defined(ASIO_HAS_STD_FUNCTION)
-# if !defined(ASIO_DISABLE_STD_FUNCTION)
-#  if defined(__clang__)
-#   if defined(ASIO_HAS_CLANG_LIBCXX)
-#    define ASIO_HAS_STD_FUNCTION 1
-#   elif (__cplusplus >= 201103)
-#    define ASIO_HAS_STD_FUNCTION 1
-#   endif // (__cplusplus >= 201103)
-#  endif // defined(__clang__)
-#  if defined(__GNUC__)
-#   if ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 5)) || (__GNUC__ > 4)
-#    if defined(__GXX_EXPERIMENTAL_CXX0X__)
-#     define ASIO_HAS_STD_FUNCTION 1
-#    endif // defined(__GXX_EXPERIMENTAL_CXX0X__)
-#   endif // ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 5)) || (__GNUC__ > 4)
-#  endif // defined(__GNUC__)
-#  if defined(ASIO_MSVC)
-#   if (_MSC_VER >= 1700)
-#    define ASIO_HAS_STD_FUNCTION 1
-#   endif // (_MSC_VER >= 1700)
-#  endif // defined(ASIO_MSVC)
-# endif // !defined(ASIO_DISABLE_STD_FUNCTION)
-#endif // !defined(ASIO_HAS_STD_FUNCTION)
-
-// Standard library support for type traits.
-#if !defined(ASIO_HAS_STD_TYPE_TRAITS)
-# if !defined(ASIO_DISABLE_STD_TYPE_TRAITS)
-#  if defined(__clang__)
-#   if defined(ASIO_HAS_CLANG_LIBCXX)
-#    define ASIO_HAS_STD_TYPE_TRAITS 1
-#   elif (__cplusplus >= 201103)
-#    if __has_include(<type_traits>)
-#     define ASIO_HAS_STD_TYPE_TRAITS 1
-#    endif // __has_include(<type_traits>)
-#   endif // (__cplusplus >= 201103)
-#  endif // defined(__clang__)
-#  if defined(__GNUC__)
-#   if ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 5)) || (__GNUC__ > 4)
-#    if defined(__GXX_EXPERIMENTAL_CXX0X__)
-#     define ASIO_HAS_STD_TYPE_TRAITS 1
-#    endif // defined(__GXX_EXPERIMENTAL_CXX0X__)
-#   endif // ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 5)) || (__GNUC__ > 4)
-#  endif // defined(__GNUC__)
-#  if defined(ASIO_MSVC)
-#   if (_MSC_VER >= 1700)
-#    define ASIO_HAS_STD_TYPE_TRAITS 1
-#   endif // (_MSC_VER >= 1700)
-#  endif // defined(ASIO_MSVC)
-# endif // !defined(ASIO_DISABLE_STD_TYPE_TRAITS)
-#endif // !defined(ASIO_HAS_STD_TYPE_TRAITS)
-
-// Standard library support for the nullptr_t type.
-#if !defined(ASIO_HAS_NULLPTR)
-# if !defined(ASIO_DISABLE_NULLPTR)
-#  if defined(__clang__)
-#   if __has_feature(__cxx_nullptr__)
-#    define ASIO_HAS_NULLPTR 1
-#   endif // __has_feature(__cxx_rvalue_references__)
-#  elif defined(__GNUC__)
-#   if ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 6)) || (__GNUC__ > 4)
-#    if defined(__GXX_EXPERIMENTAL_CXX0X__)
-#     define ASIO_HAS_NULLPTR 1
-#    endif // defined(__GXX_EXPERIMENTAL_CXX0X__)
-#   endif // ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 6)) || (__GNUC__ > 4)
-#  endif // defined(__GNUC__)
-#  if defined(ASIO_MSVC)
-#   if (_MSC_VER >= 1700)
-#    define ASIO_HAS_NULLPTR 1
-#   endif // (_MSC_VER >= 1700)
-#  endif // defined(ASIO_MSVC)
-# endif // !defined(ASIO_DISABLE_NULLPTR)
-#endif // !defined(ASIO_HAS_NULLPTR)
-
-// Standard library support for the C++11 allocator additions.
-#if !defined(ASIO_HAS_CXX11_ALLOCATORS)
-# if !defined(ASIO_DISABLE_CXX11_ALLOCATORS)
-#  if defined(__clang__)
-#   if defined(ASIO_HAS_CLANG_LIBCXX)
-#    define ASIO_HAS_CXX11_ALLOCATORS 1
-#   elif (__cplusplus >= 201103)
-#    define ASIO_HAS_CXX11_ALLOCATORS 1
-#   endif // (__cplusplus >= 201103)
-#  elif defined(__GNUC__)
-#   if ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 7)) || (__GNUC__ > 4)
-#    if defined(__GXX_EXPERIMENTAL_CXX0X__)
-#     define ASIO_HAS_CXX11_ALLOCATORS 1
-#    endif // defined(__GXX_EXPERIMENTAL_CXX0X__)
-#   endif // ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 7)) || (__GNUC__ > 4)
-#  endif // defined(__GNUC__)
-#  if defined(ASIO_MSVC)
-#   if (_MSC_VER >= 1800)
-#    define ASIO_HAS_CXX11_ALLOCATORS 1
-#   endif // (_MSC_VER >= 1800)
-#  endif // defined(ASIO_MSVC)
-# endif // !defined(ASIO_DISABLE_CXX11_ALLOCATORS)
-#endif // !defined(ASIO_HAS_CXX11_ALLOCATORS)
-
-// Standard library support for the cstdint header.
-#if !defined(ASIO_HAS_CSTDINT)
-# if !defined(ASIO_DISABLE_CSTDINT)
-#  if defined(__clang__)
-#   if defined(ASIO_HAS_CLANG_LIBCXX)
-#    define ASIO_HAS_CSTDINT 1
-#   elif (__cplusplus >= 201103)
-#    define ASIO_HAS_CSTDINT 1
-#   endif // (__cplusplus >= 201103)
-#  endif // defined(__clang__)
-#  if defined(__GNUC__)
-#   if ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 5)) || (__GNUC__ > 4)
-#    if defined(__GXX_EXPERIMENTAL_CXX0X__)
-#     define ASIO_HAS_CSTDINT 1
-#    endif // defined(__GXX_EXPERIMENTAL_CXX0X__)
-#   endif // ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 5)) || (__GNUC__ > 4)
-#  endif // defined(__GNUC__)
-#  if defined(ASIO_MSVC)
-#   if (_MSC_VER >= 1700)
-#    define ASIO_HAS_CSTDINT 1
-#   endif // (_MSC_VER >= 1700)
-#  endif // defined(ASIO_MSVC)
-# endif // !defined(ASIO_DISABLE_CSTDINT)
-#endif // !defined(ASIO_HAS_CSTDINT)
-
-// Standard library support for the thread class.
-#if !defined(ASIO_HAS_STD_THREAD)
-# if !defined(ASIO_DISABLE_STD_THREAD)
-#  if defined(__clang__)
-#   if defined(ASIO_HAS_CLANG_LIBCXX)
-#    define ASIO_HAS_STD_THREAD 1
-#   elif (__cplusplus >= 201103)
-#    if __has_include(<thread>)
-#     define ASIO_HAS_STD_THREAD 1
-#    endif // __has_include(<thread>)
-#   endif // (__cplusplus >= 201103)
-#  endif // defined(__clang__)
-#  if defined(__GNUC__)
-#   if ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 7)) || (__GNUC__ > 4)
-#    if defined(__GXX_EXPERIMENTAL_CXX0X__)
-#     define ASIO_HAS_STD_THREAD 1
-#    endif // defined(__GXX_EXPERIMENTAL_CXX0X__)
-#   endif // ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 7)) || (__GNUC__ > 4)
-#  endif // defined(__GNUC__)
-#  if defined(ASIO_MSVC)
-#   if (_MSC_VER >= 1700)
-#    define ASIO_HAS_STD_THREAD 1
-#   endif // (_MSC_VER >= 1700)
-#  endif // defined(ASIO_MSVC)
-# endif // !defined(ASIO_DISABLE_STD_THREAD)
-#endif // !defined(ASIO_HAS_STD_THREAD)
-
-// Standard library support for the mutex and condition variable classes.
-#if !defined(ASIO_HAS_STD_MUTEX_AND_CONDVAR)
-# if !defined(ASIO_DISABLE_STD_MUTEX_AND_CONDVAR)
-#  if defined(__clang__)
-#   if defined(ASIO_HAS_CLANG_LIBCXX)
-#    define ASIO_HAS_STD_MUTEX_AND_CONDVAR 1
-#   elif (__cplusplus >= 201103)
-#    if __has_include(<mutex>)
-#     define ASIO_HAS_STD_MUTEX_AND_CONDVAR 1
-#    endif // __has_include(<mutex>)
-#   endif // (__cplusplus >= 201103)
-#  endif // defined(__clang__)
-#  if defined(__GNUC__)
-#   if ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 7)) || (__GNUC__ > 4)
-#    if defined(__GXX_EXPERIMENTAL_CXX0X__)
-#     define ASIO_HAS_STD_MUTEX_AND_CONDVAR 1
-#    endif // defined(__GXX_EXPERIMENTAL_CXX0X__)
-#   endif // ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 7)) || (__GNUC__ > 4)
-#  endif // defined(__GNUC__)
-#  if defined(ASIO_MSVC)
-#   if (_MSC_VER >= 1700)
-#    define ASIO_HAS_STD_MUTEX_AND_CONDVAR 1
-#   endif // (_MSC_VER >= 1700)
-#  endif // defined(ASIO_MSVC)
-# endif // !defined(ASIO_DISABLE_STD_MUTEX_AND_CONDVAR)
-#endif // !defined(ASIO_HAS_STD_MUTEX_AND_CONDVAR)
-
-// Standard library support for the call_once function.
-#if !defined(ASIO_HAS_STD_CALL_ONCE)
-# if !defined(ASIO_DISABLE_STD_CALL_ONCE)
-#  if defined(__clang__)
-#   if defined(ASIO_HAS_CLANG_LIBCXX)
-#    define ASIO_HAS_STD_CALL_ONCE 1
-#   elif (__cplusplus >= 201103)
-#    if __has_include(<mutex>)
-#     define ASIO_HAS_STD_CALL_ONCE 1
-#    endif // __has_include(<mutex>)
-#   endif // (__cplusplus >= 201103)
-#  endif // defined(__clang__)
-#  if defined(__GNUC__)
-#   if ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 7)) || (__GNUC__ > 4)
-#    if defined(__GXX_EXPERIMENTAL_CXX0X__)
-#     define ASIO_HAS_STD_CALL_ONCE 1
-#    endif // defined(__GXX_EXPERIMENTAL_CXX0X__)
-#   endif // ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 7)) || (__GNUC__ > 4)
-#  endif // defined(__GNUC__)
-#  if defined(ASIO_MSVC)
-#   if (_MSC_VER >= 1700)
-#    define ASIO_HAS_STD_CALL_ONCE 1
-#   endif // (_MSC_VER >= 1700)
-#  endif // defined(ASIO_MSVC)
-# endif // !defined(ASIO_DISABLE_STD_CALL_ONCE)
-#endif // !defined(ASIO_HAS_STD_CALL_ONCE)
-
-// Standard library support for futures.
-#if !defined(ASIO_HAS_STD_FUTURE)
-# if !defined(ASIO_DISABLE_STD_FUTURE)
-#  if defined(__clang__)
-#   if defined(ASIO_HAS_CLANG_LIBCXX)
-#    define ASIO_HAS_STD_FUTURE 1
-#   elif (__cplusplus >= 201103)
-#    if __has_include(<future>)
-#     define ASIO_HAS_STD_FUTURE 1
-#    endif // __has_include(<mutex>)
-#   endif // (__cplusplus >= 201103)
-#  endif // defined(__clang__)
-#  if defined(__GNUC__)
-#   if ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 7)) || (__GNUC__ > 4)
-#    if defined(__GXX_EXPERIMENTAL_CXX0X__)
-#     if defined(_GLIBCXX_HAS_GTHREADS)
-#      define ASIO_HAS_STD_FUTURE 1
-#     endif // defined(_GLIBCXX_HAS_GTHREADS)
-#    endif // defined(__GXX_EXPERIMENTAL_CXX0X__)
-#   endif // ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 7)) || (__GNUC__ > 4)
-#  endif // defined(__GNUC__)
-#  if defined(ASIO_MSVC)
-#   if (_MSC_VER >= 1700)
-#    define ASIO_HAS_STD_FUTURE 1
-#   endif // (_MSC_VER >= 1700)
-#  endif // defined(ASIO_MSVC)
-# endif // !defined(ASIO_DISABLE_STD_FUTURE)
-#endif // !defined(ASIO_HAS_STD_FUTURE)
-
-// Standard library support for std::string_view.
-#if !defined(ASIO_HAS_STD_STRING_VIEW)
-# if !defined(ASIO_DISABLE_STD_STRING_VIEW)
-#  if defined(__clang__)
-#   if (__cplusplus >= 201703)
-#    if __has_include(<string_view>)
-#     define ASIO_HAS_STD_STRING_VIEW 1
-#    endif // __has_include(<string_view>)
-#   endif // (__cplusplus >= 201703)
-#  endif // defined(__clang__)
-#  if defined(__GNUC__)
-#   if (__GNUC__ >= 7)
-#    if (__cplusplus >= 201703)
-#     define ASIO_HAS_STD_STRING_VIEW 1
-#    endif // (__cplusplus >= 201703)
-#   endif // (__GNUC__ >= 7)
-#  endif // defined(__GNUC__)
-#  if defined(ASIO_MSVC)
-#   if (_MSC_VER >= 1910 && _HAS_CXX17)
-#    define ASIO_HAS_STD_STRING_VIEW
-#   endif // (_MSC_VER >= 1910 && _HAS_CXX17)
-#  endif // defined(ASIO_MSVC)
-# endif // !defined(ASIO_DISABLE_STD_STRING_VIEW)
-#endif // !defined(ASIO_HAS_STD_STRING_VIEW)
-
-// Standard library support for std::experimental::string_view.
-#if !defined(ASIO_HAS_STD_EXPERIMENTAL_STRING_VIEW)
-# if !defined(ASIO_DISABLE_STD_EXPERIMENTAL_STRING_VIEW)
-#  if defined(__clang__)
-#   if (__cplusplus >= 201402)
-#    if __has_include(<experimental/string_view>)
-#     define ASIO_HAS_STD_EXPERIMENTAL_STRING_VIEW 1
-#    endif // __has_include(<experimental/string_view>)
-#   endif // (__cplusplus >= 201402)
-#  endif // defined(__clang__)
-#  if defined(__GNUC__)
-#   if ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 9)) || (__GNUC__ > 4)
-#    if (__cplusplus >= 201402)
-#     define ASIO_HAS_STD_EXPERIMENTAL_STRING_VIEW 1
-#    endif // (__cplusplus >= 201402)
-#   endif // ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 9)) || (__GNUC__ > 4)
-#  endif // defined(__GNUC__)
-# endif // !defined(ASIO_DISABLE_STD_EXPERIMENTAL_STRING_VIEW)
-#endif // !defined(ASIO_HAS_STD_EXPERIMENTAL_STRING_VIEW)
-
-// Standard library has a string_view that we can use.
-#if !defined(ASIO_HAS_STRING_VIEW)
-# if !defined(ASIO_DISABLE_STRING_VIEW)
-#  if defined(ASIO_HAS_STD_STRING_VIEW)
-#   define ASIO_HAS_STRING_VIEW 1
-#  elif defined(ASIO_HAS_STD_EXPERIMENTAL_STRING_VIEW)
-#   define ASIO_HAS_STRING_VIEW 1
-#  endif // defined(ASIO_HAS_STD_EXPERIMENTAL_STRING_VIEW)
-# endif // !defined(ASIO_DISABLE_STRING_VIEW)
-#endif // !defined(ASIO_HAS_STRING_VIEW)
-
-// Standard library support for iostream move construction and assignment.
-#if !defined(ASIO_HAS_STD_IOSTREAM_MOVE)
-# if !defined(ASIO_DISABLE_STD_IOSTREAM_MOVE)
-#  if defined(__GNUC__)
-#   if (__GNUC__ > 4)
-#    if defined(__GXX_EXPERIMENTAL_CXX0X__)
-#     define ASIO_HAS_STD_IOSTREAM_MOVE 1
-#    endif // defined(__GXX_EXPERIMENTAL_CXX0X__)
-#   endif // (__GNUC__ > 4)
-#  endif // defined(__GNUC__)
-#  if defined(ASIO_MSVC)
-#   if (_MSC_VER >= 1700)
-#    define ASIO_HAS_STD_IOSTREAM_MOVE 1
-#   endif // (_MSC_VER >= 1700)
-#  endif // defined(ASIO_MSVC)
-# endif // !defined(ASIO_DISABLE_STD_IOSTREAM_MOVE)
-#endif // !defined(ASIO_HAS_STD_IOSTREAM_MOVE)
-
-// Standard library has invoke_result (which supersedes result_of).
-#if !defined(ASIO_HAS_STD_INVOKE_RESULT)
-# if !defined(ASIO_DISABLE_STD_INVOKE_RESULT)
-#  if defined(ASIO_MSVC)
-#   if (_MSC_VER >= 1910 && _HAS_CXX17)
-#    define ASIO_HAS_STD_INVOKE_RESULT 1
-#   endif // (_MSC_VER >= 1910 && _HAS_CXX17)
-#  endif // defined(ASIO_MSVC)
-# endif // !defined(ASIO_DISABLE_STD_INVOKE_RESULT)
-#endif // !defined(ASIO_HAS_STD_INVOKE_RESULT)
-
-// Windows App target. Windows but with a limited API.
-#if !defined(ASIO_WINDOWS_APP)
-# if defined(_WIN32_WINNT) && (_WIN32_WINNT >= 0x0603)
-#  include <winapifamily.h>
-#  if WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_APP) \
-   && !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
-#   define ASIO_WINDOWS_APP 1
-#  endif // WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_APP)
-         // && !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
-# endif // defined(_WIN32_WINNT) && (_WIN32_WINNT >= 0x0603)
-#endif // !defined(ASIO_WINDOWS_APP)
-
-// Legacy WinRT target. Windows App is preferred.
-#if !defined(ASIO_WINDOWS_RUNTIME)
-# if !defined(ASIO_WINDOWS_APP)
-#  if defined(__cplusplus_winrt)
-#   include <winapifamily.h>
-#   if WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_APP) \
-    && !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
-#    define ASIO_WINDOWS_RUNTIME 1
-#   endif // WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_APP)
-          // && !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
-#  endif // defined(__cplusplus_winrt)
-# endif // !defined(ASIO_WINDOWS_APP)
-#endif // !defined(ASIO_WINDOWS_RUNTIME)
-
-// Windows target. Excludes WinRT but includes Windows App targets.
-#if !defined(ASIO_WINDOWS)
-# if !defined(ASIO_WINDOWS_RUNTIME)
-#  if defined(ASIO_HAS_BOOST_CONFIG) && defined(BOOST_WINDOWS)
-#   define ASIO_WINDOWS 1
-#  elif defined(WIN32) || defined(_WIN32) || defined(__WIN32__)
-#   define ASIO_WINDOWS 1
-#  elif defined(ASIO_WINDOWS_APP)
-#   define ASIO_WINDOWS 1
-#  endif // defined(ASIO_HAS_BOOST_CONFIG) && defined(BOOST_WINDOWS)
-# endif // !defined(ASIO_WINDOWS_RUNTIME)
-#endif // !defined(ASIO_WINDOWS)
-
-// Windows: target OS version.
-#if defined(ASIO_WINDOWS) || defined(__CYGWIN__)
-# if !defined(_WIN32_WINNT) && !defined(_WIN32_WINDOWS)
-#  if defined(_MSC_VER) || defined(__BORLANDC__)
-#   pragma message( \
-  "Please define _WIN32_WINNT or _WIN32_WINDOWS appropriately. For example:\n"\
-  "- add -D_WIN32_WINNT=0x0501 to the compiler command line; or\n"\
-  "- add _WIN32_WINNT=0x0501 to your project's Preprocessor Definitions.\n"\
-  "Assuming _WIN32_WINNT=0x0501 (i.e. Windows XP target).")
-#  else // defined(_MSC_VER) || defined(__BORLANDC__)
-#   warning Please define _WIN32_WINNT or _WIN32_WINDOWS appropriately.
-#   warning For example, add -D_WIN32_WINNT=0x0501 to the compiler command line.
-#   warning Assuming _WIN32_WINNT=0x0501 (i.e. Windows XP target).
-#  endif // defined(_MSC_VER) || defined(__BORLANDC__)
-#  define _WIN32_WINNT 0x0501
-# endif // !defined(_WIN32_WINNT) && !defined(_WIN32_WINDOWS)
-# if defined(_MSC_VER)
-#  if defined(_WIN32) && !defined(WIN32)
-#   if !defined(_WINSOCK2API_)
-#    define WIN32 // Needed for correct types in winsock2.h
-#   else // !defined(_WINSOCK2API_)
-#    error Please define the macro WIN32 in your compiler options
-#   endif // !defined(_WINSOCK2API_)
-#  endif // defined(_WIN32) && !defined(WIN32)
-# endif // defined(_MSC_VER)
-# if defined(__BORLANDC__)
-#  if defined(__WIN32__) && !defined(WIN32)
-#   if !defined(_WINSOCK2API_)
-#    define WIN32 // Needed for correct types in winsock2.h
-#   else // !defined(_WINSOCK2API_)
-#    error Please define the macro WIN32 in your compiler options
-#   endif // !defined(_WINSOCK2API_)
-#  endif // defined(__WIN32__) && !defined(WIN32)
-# endif // defined(__BORLANDC__)
-# if defined(__CYGWIN__)
-#  if !defined(__USE_W32_SOCKETS)
-#   error You must add -D__USE_W32_SOCKETS to your compiler options.
-#  endif // !defined(__USE_W32_SOCKETS)
-# endif // defined(__CYGWIN__)
-#endif // defined(ASIO_WINDOWS) || defined(__CYGWIN__)
-
-// Windows: minimise header inclusion.
-#if defined(ASIO_WINDOWS) || defined(__CYGWIN__)
-# if !defined(ASIO_NO_WIN32_LEAN_AND_MEAN)
-#  if !defined(WIN32_LEAN_AND_MEAN)
-#   define WIN32_LEAN_AND_MEAN
-#  endif // !defined(WIN32_LEAN_AND_MEAN)
-# endif // !defined(ASIO_NO_WIN32_LEAN_AND_MEAN)
-#endif // defined(ASIO_WINDOWS) || defined(__CYGWIN__)
-
-// Windows: suppress definition of "min" and "max" macros.
-#if defined(ASIO_WINDOWS) || defined(__CYGWIN__)
-# if !defined(ASIO_NO_NOMINMAX)
-#  if !defined(NOMINMAX)
-#   define NOMINMAX 1
-#  endif // !defined(NOMINMAX)
-# endif // !defined(ASIO_NO_NOMINMAX)
-#endif // defined(ASIO_WINDOWS) || defined(__CYGWIN__)
-
-// Windows: IO Completion Ports.
-#if !defined(ASIO_HAS_IOCP)
-# if defined(ASIO_WINDOWS) || defined(__CYGWIN__)
-#  if defined(_WIN32_WINNT) && (_WIN32_WINNT >= 0x0400)
-#   if !defined(UNDER_CE) && !defined(ASIO_WINDOWS_APP)
-#    if !defined(ASIO_DISABLE_IOCP)
-#     define ASIO_HAS_IOCP 1
-#    endif // !defined(ASIO_DISABLE_IOCP)
-#   endif // !defined(UNDER_CE) && !defined(ASIO_WINDOWS_APP)
-#  endif // defined(_WIN32_WINNT) && (_WIN32_WINNT >= 0x0400)
-# endif // defined(ASIO_WINDOWS) || defined(__CYGWIN__)
-#endif // !defined(ASIO_HAS_IOCP)
-
-// On POSIX (and POSIX-like) platforms we need to include unistd.h in order to
-// get access to the various platform feature macros, e.g. to be able to test
-// for threads support.
-#if !defined(ASIO_HAS_UNISTD_H)
-# if !defined(ASIO_HAS_BOOST_CONFIG)
-#  if defined(unix) \
-   || defined(__unix) \
-   || defined(_XOPEN_SOURCE) \
-   || defined(_POSIX_SOURCE) \
-   || (defined(__MACH__) && defined(__APPLE__)) \
-   || defined(__FreeBSD__) \
-   || defined(__NetBSD__) \
-   || defined(__OpenBSD__) \
-   || defined(__linux__)
-#   define ASIO_HAS_UNISTD_H 1
-#  endif
-# endif // !defined(ASIO_HAS_BOOST_CONFIG)
-#endif // !defined(ASIO_HAS_UNISTD_H)
-#if defined(ASIO_HAS_UNISTD_H)
-# include <unistd.h>
-#endif // defined(ASIO_HAS_UNISTD_H)
-
-// Linux: epoll, eventfd and timerfd.
-#if defined(__linux__)
-# include <linux/version.h>
-# if !defined(ASIO_HAS_EPOLL)
-#  if !defined(ASIO_DISABLE_EPOLL)
-#   if LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,45)
-#    define ASIO_HAS_EPOLL 1
-#   endif // LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,45)
-#  endif // !defined(ASIO_DISABLE_EPOLL)
-# endif // !defined(ASIO_HAS_EPOLL)
-# if !defined(ASIO_HAS_EVENTFD)
-#  if !defined(ASIO_DISABLE_EVENTFD)
-#   if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,22)
-#    define ASIO_HAS_EVENTFD 1
-#   endif // LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,22)
-#  endif // !defined(ASIO_DISABLE_EVENTFD)
-# endif // !defined(ASIO_HAS_EVENTFD)
-# if !defined(ASIO_HAS_TIMERFD)
-#  if defined(ASIO_HAS_EPOLL)
-#   if (__GLIBC__ > 2) || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 8)
-#    define ASIO_HAS_TIMERFD 1
-#   endif // (__GLIBC__ > 2) || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 8)
-#  endif // defined(ASIO_HAS_EPOLL)
-# endif // !defined(ASIO_HAS_TIMERFD)
-#endif // defined(__linux__)
-
-// Mac OS X, FreeBSD, NetBSD, OpenBSD: kqueue.
-#if (defined(__MACH__) && defined(__APPLE__)) \
-  || defined(__FreeBSD__) \
-  || defined(__NetBSD__) \
-  || defined(__OpenBSD__)
-# if !defined(ASIO_HAS_KQUEUE)
-#  if !defined(ASIO_DISABLE_KQUEUE)
-#   define ASIO_HAS_KQUEUE 1
-#  endif // !defined(ASIO_DISABLE_KQUEUE)
-# endif // !defined(ASIO_HAS_KQUEUE)
-#endif // (defined(__MACH__) && defined(__APPLE__))
-       //   || defined(__FreeBSD__)
-       //   || defined(__NetBSD__)
-       //   || defined(__OpenBSD__)
-
-// Solaris: /dev/poll.
-#if defined(__sun)
-# if !defined(ASIO_HAS_DEV_POLL)
-#  if !defined(ASIO_DISABLE_DEV_POLL)
-#   define ASIO_HAS_DEV_POLL 1
-#  endif // !defined(ASIO_DISABLE_DEV_POLL)
-# endif // !defined(ASIO_HAS_DEV_POLL)
-#endif // defined(__sun)
-
-// Serial ports.
-#if !defined(ASIO_HAS_SERIAL_PORT)
-# if defined(ASIO_HAS_IOCP) \
-  || !defined(ASIO_WINDOWS) \
-  && !defined(ASIO_WINDOWS_RUNTIME) \
-  && !defined(__CYGWIN__)
-#  if !defined(__SYMBIAN32__)
-#   if !defined(ASIO_DISABLE_SERIAL_PORT)
-#    define ASIO_HAS_SERIAL_PORT 1
-#   endif // !defined(ASIO_DISABLE_SERIAL_PORT)
-#  endif // !defined(__SYMBIAN32__)
-# endif // defined(ASIO_HAS_IOCP)
-        //   || !defined(ASIO_WINDOWS)
-        //   && !defined(ASIO_WINDOWS_RUNTIME)
-        //   && !defined(__CYGWIN__)
-#endif // !defined(ASIO_HAS_SERIAL_PORT)
-
-// Windows: stream handles.
-#if !defined(ASIO_HAS_WINDOWS_STREAM_HANDLE)
-# if !defined(ASIO_DISABLE_WINDOWS_STREAM_HANDLE)
-#  if defined(ASIO_HAS_IOCP)
-#   define ASIO_HAS_WINDOWS_STREAM_HANDLE 1
-#  endif // defined(ASIO_HAS_IOCP)
-# endif // !defined(ASIO_DISABLE_WINDOWS_STREAM_HANDLE)
-#endif // !defined(ASIO_HAS_WINDOWS_STREAM_HANDLE)
-
-// Windows: random access handles.
-#if !defined(ASIO_HAS_WINDOWS_RANDOM_ACCESS_HANDLE)
-# if !defined(ASIO_DISABLE_WINDOWS_RANDOM_ACCESS_HANDLE)
-#  if defined(ASIO_HAS_IOCP)
-#   define ASIO_HAS_WINDOWS_RANDOM_ACCESS_HANDLE 1
-#  endif // defined(ASIO_HAS_IOCP)
-# endif // !defined(ASIO_DISABLE_WINDOWS_RANDOM_ACCESS_HANDLE)
-#endif // !defined(ASIO_HAS_WINDOWS_RANDOM_ACCESS_HANDLE)
-
-// Windows: object handles.
-#if !defined(ASIO_HAS_WINDOWS_OBJECT_HANDLE)
-# if !defined(ASIO_DISABLE_WINDOWS_OBJECT_HANDLE)
-#  if defined(ASIO_WINDOWS) || defined(__CYGWIN__)
-#   if !defined(UNDER_CE) && !defined(ASIO_WINDOWS_APP)
-#    define ASIO_HAS_WINDOWS_OBJECT_HANDLE 1
-#   endif // !defined(UNDER_CE) && !defined(ASIO_WINDOWS_APP)
-#  endif // defined(ASIO_WINDOWS) || defined(__CYGWIN__)
-# endif // !defined(ASIO_DISABLE_WINDOWS_OBJECT_HANDLE)
-#endif // !defined(ASIO_HAS_WINDOWS_OBJECT_HANDLE)
-
-// Windows: OVERLAPPED wrapper.
-#if !defined(ASIO_HAS_WINDOWS_OVERLAPPED_PTR)
-# if !defined(ASIO_DISABLE_WINDOWS_OVERLAPPED_PTR)
-#  if defined(ASIO_HAS_IOCP)
-#   define ASIO_HAS_WINDOWS_OVERLAPPED_PTR 1
-#  endif // defined(ASIO_HAS_IOCP)
-# endif // !defined(ASIO_DISABLE_WINDOWS_OVERLAPPED_PTR)
-#endif // !defined(ASIO_HAS_WINDOWS_OVERLAPPED_PTR)
-
-// POSIX: stream-oriented file descriptors.
-#if !defined(ASIO_HAS_POSIX_STREAM_DESCRIPTOR)
-# if !defined(ASIO_DISABLE_POSIX_STREAM_DESCRIPTOR)
-#  if !defined(ASIO_WINDOWS) \
-  && !defined(ASIO_WINDOWS_RUNTIME) \
-  && !defined(__CYGWIN__)
-#   define ASIO_HAS_POSIX_STREAM_DESCRIPTOR 1
-#  endif // !defined(ASIO_WINDOWS)
-         //   && !defined(ASIO_WINDOWS_RUNTIME)
-         //   && !defined(__CYGWIN__)
-# endif // !defined(ASIO_DISABLE_POSIX_STREAM_DESCRIPTOR)
-#endif // !defined(ASIO_HAS_POSIX_STREAM_DESCRIPTOR)
-
-// UNIX domain sockets.
-#if !defined(ASIO_HAS_LOCAL_SOCKETS)
-# if !defined(ASIO_DISABLE_LOCAL_SOCKETS)
-#  if !defined(ASIO_WINDOWS) \
-  && !defined(ASIO_WINDOWS_RUNTIME) \
-  && !defined(__CYGWIN__)
-#   define ASIO_HAS_LOCAL_SOCKETS 1
-#  endif // !defined(ASIO_WINDOWS)
-         //   && !defined(ASIO_WINDOWS_RUNTIME)
-         //   && !defined(__CYGWIN__)
-# endif // !defined(ASIO_DISABLE_LOCAL_SOCKETS)
-#endif // !defined(ASIO_HAS_LOCAL_SOCKETS)
-
-// Can use sigaction() instead of signal().
-#if !defined(ASIO_HAS_SIGACTION)
-# if !defined(ASIO_DISABLE_SIGACTION)
-#  if !defined(ASIO_WINDOWS) \
-  && !defined(ASIO_WINDOWS_RUNTIME) \
-  && !defined(__CYGWIN__)
-#   define ASIO_HAS_SIGACTION 1
-#  endif // !defined(ASIO_WINDOWS)
-         //   && !defined(ASIO_WINDOWS_RUNTIME)
-         //   && !defined(__CYGWIN__)
-# endif // !defined(ASIO_DISABLE_SIGACTION)
-#endif // !defined(ASIO_HAS_SIGACTION)
-
-// Can use signal().
-#if !defined(ASIO_HAS_SIGNAL)
-# if !defined(ASIO_DISABLE_SIGNAL)
-#  if !defined(UNDER_CE)
-#   define ASIO_HAS_SIGNAL 1
-#  endif // !defined(UNDER_CE)
-# endif // !defined(ASIO_DISABLE_SIGNAL)
-#endif // !defined(ASIO_HAS_SIGNAL)
-
-// Can use getaddrinfo() and getnameinfo().
-#if !defined(ASIO_HAS_GETADDRINFO)
-# if !defined(ASIO_DISABLE_GETADDRINFO)
-#  if defined(ASIO_WINDOWS) || defined(__CYGWIN__)
-#   if defined(_WIN32_WINNT) && (_WIN32_WINNT >= 0x0501)
-#    define ASIO_HAS_GETADDRINFO 1
-#   elif defined(UNDER_CE)
-#    define ASIO_HAS_GETADDRINFO 1
-#   endif // defined(UNDER_CE)
-#  elif defined(__MACH__) && defined(__APPLE__)
-#   if defined(__MAC_OS_X_VERSION_MIN_REQUIRED)
-#    if (__MAC_OS_X_VERSION_MIN_REQUIRED >= 1050)
-#     define ASIO_HAS_GETADDRINFO 1
-#    endif // (__MAC_OS_X_VERSION_MIN_REQUIRED >= 1050)
-#   else // defined(__MAC_OS_X_VERSION_MIN_REQUIRED)
-#    define ASIO_HAS_GETADDRINFO 1
-#   endif // defined(__MAC_OS_X_VERSION_MIN_REQUIRED)
-#  else // defined(__MACH__) && defined(__APPLE__)
-#   define ASIO_HAS_GETADDRINFO 1
-#  endif // defined(__MACH__) && defined(__APPLE__)
-# endif // !defined(ASIO_DISABLE_GETADDRINFO)
-#endif // !defined(ASIO_HAS_GETADDRINFO)
-
-// Whether standard iostreams are disabled.
-#if !defined(ASIO_NO_IOSTREAM)
-# if defined(ASIO_HAS_BOOST_CONFIG) && defined(BOOST_NO_IOSTREAM)
-#  define ASIO_NO_IOSTREAM 1
-# endif // !defined(BOOST_NO_IOSTREAM)
-#endif // !defined(ASIO_NO_IOSTREAM)
-
-// Whether exception handling is disabled.
-#if !defined(ASIO_NO_EXCEPTIONS)
-# if defined(ASIO_HAS_BOOST_CONFIG) && defined(BOOST_NO_EXCEPTIONS)
-#  define ASIO_NO_EXCEPTIONS 1
-# endif // !defined(BOOST_NO_EXCEPTIONS)
-#endif // !defined(ASIO_NO_EXCEPTIONS)
-
-// Whether the typeid operator is supported.
-#if !defined(ASIO_NO_TYPEID)
-# if defined(ASIO_HAS_BOOST_CONFIG) && defined(BOOST_NO_TYPEID)
-#  define ASIO_NO_TYPEID 1
-# endif // !defined(BOOST_NO_TYPEID)
-#endif // !defined(ASIO_NO_TYPEID)
-
-// Threads.
-#if !defined(ASIO_HAS_THREADS)
-# if !defined(ASIO_DISABLE_THREADS)
-#  if defined(ASIO_HAS_BOOST_CONFIG) && defined(BOOST_HAS_THREADS)
-#   define ASIO_HAS_THREADS 1
-#  elif defined(__GNUC__) && !defined(__MINGW32__) \
-     && !defined(linux) && !defined(__linux) && !defined(__linux__)
-#   define ASIO_HAS_THREADS 1
-#  elif defined(_MT) || defined(__MT__)
-#   define ASIO_HAS_THREADS 1
-#  elif defined(_REENTRANT)
-#   define ASIO_HAS_THREADS 1
-#  elif defined(__APPLE__)
-#   define ASIO_HAS_THREADS 1
-#  elif defined(_POSIX_THREADS) && (_POSIX_THREADS + 0 >= 0)
-#   define ASIO_HAS_THREADS 1
-#  elif defined(_PTHREADS)
-#   define ASIO_HAS_THREADS 1
-#  endif // defined(ASIO_HAS_BOOST_CONFIG) && defined(BOOST_HAS_THREADS)
-# endif // !defined(ASIO_DISABLE_THREADS)
-#endif // !defined(ASIO_HAS_THREADS)
-
-// POSIX threads.
-#if !defined(ASIO_HAS_PTHREADS)
-# if defined(ASIO_HAS_THREADS)
-#  if defined(ASIO_HAS_BOOST_CONFIG) && defined(BOOST_HAS_PTHREADS)
-#   define ASIO_HAS_PTHREADS 1
-#  elif defined(_POSIX_THREADS) && (_POSIX_THREADS + 0 >= 0)
-#   define ASIO_HAS_PTHREADS 1
-#  endif // defined(ASIO_HAS_BOOST_CONFIG) && defined(BOOST_HAS_PTHREADS)
-# endif // defined(ASIO_HAS_THREADS)
-#endif // !defined(ASIO_HAS_PTHREADS)
-
-// Helper to prevent macro expansion.
-#define ASIO_PREVENT_MACRO_SUBSTITUTION
-
-// Helper to define in-class constants.
-#if !defined(ASIO_STATIC_CONSTANT)
-# if !defined(ASIO_DISABLE_BOOST_STATIC_CONSTANT)
-#  define ASIO_STATIC_CONSTANT(type, assignment) \
-    BOOST_STATIC_CONSTANT(type, assignment)
-# else // !defined(ASIO_DISABLE_BOOST_STATIC_CONSTANT)
-#  define ASIO_STATIC_CONSTANT(type, assignment) \
-    static const type assignment
-# endif // !defined(ASIO_DISABLE_BOOST_STATIC_CONSTANT)
-#endif // !defined(ASIO_STATIC_CONSTANT)
-
-// Boost array library.
-#if !defined(ASIO_HAS_BOOST_ARRAY)
-# if !defined(ASIO_DISABLE_BOOST_ARRAY)
-#  define ASIO_HAS_BOOST_ARRAY 1
-# endif // !defined(ASIO_DISABLE_BOOST_ARRAY)
-#endif // !defined(ASIO_HAS_BOOST_ARRAY)
-
-// Boost assert macro.
-#if !defined(ASIO_HAS_BOOST_ASSERT)
-# if !defined(ASIO_DISABLE_BOOST_ASSERT)
-#  define ASIO_HAS_BOOST_ASSERT 1
-# endif // !defined(ASIO_DISABLE_BOOST_ASSERT)
-#endif // !defined(ASIO_HAS_BOOST_ASSERT)
-
-// Boost limits header.
-#if !defined(ASIO_HAS_BOOST_LIMITS)
-# if !defined(ASIO_DISABLE_BOOST_LIMITS)
-#  define ASIO_HAS_BOOST_LIMITS 1
-# endif // !defined(ASIO_DISABLE_BOOST_LIMITS)
-#endif // !defined(ASIO_HAS_BOOST_LIMITS)
-
-// Boost throw_exception function.
-#if !defined(ASIO_HAS_BOOST_THROW_EXCEPTION)
-# if !defined(ASIO_DISABLE_BOOST_THROW_EXCEPTION)
-#  define ASIO_HAS_BOOST_THROW_EXCEPTION 1
-# endif // !defined(ASIO_DISABLE_BOOST_THROW_EXCEPTION)
-#endif // !defined(ASIO_HAS_BOOST_THROW_EXCEPTION)
-
-// Boost regex library.
-#if !defined(ASIO_HAS_BOOST_REGEX)
-# if !defined(ASIO_DISABLE_BOOST_REGEX)
-#  define ASIO_HAS_BOOST_REGEX 1
-# endif // !defined(ASIO_DISABLE_BOOST_REGEX)
-#endif // !defined(ASIO_HAS_BOOST_REGEX)
-
-// Boost bind function.
-#if !defined(ASIO_HAS_BOOST_BIND)
-# if !defined(ASIO_DISABLE_BOOST_BIND)
-#  define ASIO_HAS_BOOST_BIND 1
-# endif // !defined(ASIO_DISABLE_BOOST_BIND)
-#endif // !defined(ASIO_HAS_BOOST_BIND)
-
-// Boost's BOOST_WORKAROUND macro.
-#if !defined(ASIO_HAS_BOOST_WORKAROUND)
-# if !defined(ASIO_DISABLE_BOOST_WORKAROUND)
-#  define ASIO_HAS_BOOST_WORKAROUND 1
-# endif // !defined(ASIO_DISABLE_BOOST_WORKAROUND)
-#endif // !defined(ASIO_HAS_BOOST_WORKAROUND)
-
-// Microsoft Visual C++'s secure C runtime library.
-#if !defined(ASIO_HAS_SECURE_RTL)
-# if !defined(ASIO_DISABLE_SECURE_RTL)
-#  if defined(ASIO_MSVC) \
-    && (ASIO_MSVC >= 1400) \
-    && !defined(UNDER_CE)
-#   define ASIO_HAS_SECURE_RTL 1
-#  endif // defined(ASIO_MSVC)
-         // && (ASIO_MSVC >= 1400)
-         // && !defined(UNDER_CE)
-# endif // !defined(ASIO_DISABLE_SECURE_RTL)
-#endif // !defined(ASIO_HAS_SECURE_RTL)
-
-// Handler hooking. Disabled for ancient Borland C++ and gcc compilers.
-#if !defined(ASIO_HAS_HANDLER_HOOKS)
-# if !defined(ASIO_DISABLE_HANDLER_HOOKS)
-#  if defined(__GNUC__)
-#   if (__GNUC__ >= 3)
-#    define ASIO_HAS_HANDLER_HOOKS 1
-#   endif // (__GNUC__ >= 3)
-#  elif !defined(__BORLANDC__)
-#   define ASIO_HAS_HANDLER_HOOKS 1
-#  endif // !defined(__BORLANDC__)
-# endif // !defined(ASIO_DISABLE_HANDLER_HOOKS)
-#endif // !defined(ASIO_HAS_HANDLER_HOOKS)
-
-// Support for the __thread keyword extension.
-#if !defined(ASIO_DISABLE_THREAD_KEYWORD_EXTENSION)
-# if defined(__linux__)
-#  if defined(__GNUC__) && (defined(__i386__) || defined(__x86_64__))
-#   if ((__GNUC__ == 3) && (__GNUC_MINOR__ >= 3)) || (__GNUC__ > 3)
-#    if !defined(__INTEL_COMPILER) && !defined(__ICL) \
-       && !(defined(__clang__) && defined(__ANDROID__))
-#     define ASIO_HAS_THREAD_KEYWORD_EXTENSION 1
-#     define ASIO_THREAD_KEYWORD __thread
-#    elif defined(__INTEL_COMPILER) && (__INTEL_COMPILER >= 1100)
-#     define ASIO_HAS_THREAD_KEYWORD_EXTENSION 1
-#    endif // defined(__INTEL_COMPILER) && (__INTEL_COMPILER >= 1100)
-           // && !(defined(__clang__) && defined(__ANDROID__))
-#   endif // ((__GNUC__ == 3) && (__GNUC_MINOR__ >= 3)) || (__GNUC__ > 3)
-#  endif // defined(__GNUC__) && (defined(__i386__) || defined(__x86_64__))
-# endif // defined(__linux__)
-# if defined(ASIO_MSVC) && defined(ASIO_WINDOWS_RUNTIME)
-#  if (_MSC_VER >= 1700)
-#   define ASIO_HAS_THREAD_KEYWORD_EXTENSION 1
-#   define ASIO_THREAD_KEYWORD __declspec(thread)
-#  endif // (_MSC_VER >= 1700)
-# endif // defined(ASIO_MSVC) && defined(ASIO_WINDOWS_RUNTIME)
-#endif // !defined(ASIO_DISABLE_THREAD_KEYWORD_EXTENSION)
-#if !defined(ASIO_THREAD_KEYWORD)
-# define ASIO_THREAD_KEYWORD __thread
-#endif // !defined(ASIO_THREAD_KEYWORD)
-
-// Support for POSIX ssize_t typedef.
-#if !defined(ASIO_DISABLE_SSIZE_T)
-# if defined(__linux__) \
-   || (defined(__MACH__) && defined(__APPLE__))
-#  define ASIO_HAS_SSIZE_T 1
-# endif // defined(__linux__)
-        //   || (defined(__MACH__) && defined(__APPLE__))
-#endif // !defined(ASIO_DISABLE_SSIZE_T)
-
-// Helper macros to manage the transition away from the old services-based API.
-#if defined(ASIO_ENABLE_OLD_SERVICES)
-# define ASIO_SVC_TPARAM , typename Service
-# define ASIO_SVC_TPARAM_DEF1(d1) , typename Service d1
-# define ASIO_SVC_TPARAM_DEF2(d1, d2) , typename Service d1, d2
-# define ASIO_SVC_TARG , Service
-# define ASIO_SVC_T Service
-# define ASIO_SVC_TPARAM1 , typename Service1
-# define ASIO_SVC_TPARAM1_DEF1(d1) , typename Service1 d1
-# define ASIO_SVC_TPARAM1_DEF2(d1, d2) , typename Service1 d1, d2
-# define ASIO_SVC_TARG1 , Service1
-# define ASIO_SVC_T1 Service1
-# define ASIO_SVC_ACCESS public
-#else // defined(ASIO_ENABLE_OLD_SERVICES)
-# define ASIO_SVC_TPARAM
-# define ASIO_SVC_TPARAM_DEF1(d1)
-# define ASIO_SVC_TPARAM_DEF2(d1, d2)
-# define ASIO_SVC_TARG
-// ASIO_SVC_T is defined at each point of use.
-# define ASIO_SVC_TPARAM1
-# define ASIO_SVC_TPARAM1_DEF1(d1)
-# define ASIO_SVC_TPARAM1_DEF2(d1, d2)
-# define ASIO_SVC_TARG1
-// ASIO_SVC_T1 is defined at each point of use.
-# define ASIO_SVC_ACCESS protected
-#endif // defined(ASIO_ENABLE_OLD_SERVICES)
-
-// Helper macros to manage transition away from error_code return values.
-#if defined(ASIO_NO_DEPRECATED)
-# define ASIO_SYNC_OP_VOID void
-# define ASIO_SYNC_OP_VOID_RETURN(e) return
-#else // defined(ASIO_NO_DEPRECATED)
-# define ASIO_SYNC_OP_VOID asio::error_code
-# define ASIO_SYNC_OP_VOID_RETURN(e) return e
-#endif // defined(ASIO_NO_DEPRECATED)
-
-// Newer gcc, clang need special treatment to suppress unused typedef warnings.
-#if defined(__clang__)
-# if defined(__apple_build_version__)
-#  if (__clang_major__ >= 7)
-#   define ASIO_UNUSED_TYPEDEF __attribute__((__unused__))
-#  endif // (__clang_major__ >= 7)
-# elif ((__clang_major__ == 3) && (__clang_minor__ >= 6)) \
-    || (__clang_major__ > 3)
-#  define ASIO_UNUSED_TYPEDEF __attribute__((__unused__))
-# endif // ((__clang_major__ == 3) && (__clang_minor__ >= 6))
-        //   || (__clang_major__ > 3)
-#elif defined(__GNUC__)
-# if ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 8)) || (__GNUC__ > 4)
-#  define ASIO_UNUSED_TYPEDEF __attribute__((__unused__))
-# endif // ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 8)) || (__GNUC__ > 4)
-#endif // defined(__GNUC__)
-#if !defined(ASIO_UNUSED_TYPEDEF)
-# define ASIO_UNUSED_TYPEDEF
-#endif // !defined(ASIO_UNUSED_TYPEDEF)
-
-// Some versions of gcc generate spurious warnings about unused variables.
-#if defined(__GNUC__)
-# if (__GNUC__ >= 4)
-#  define ASIO_UNUSED_VARIABLE __attribute__((__unused__))
-# endif // (__GNUC__ >= 4)
-#endif // defined(__GNUC__)
-#if !defined(ASIO_UNUSED_VARIABLE)
-# define ASIO_UNUSED_VARIABLE
-#endif // !defined(ASIO_UNUSED_VARIABLE)
-
-// Support co_await on compilers known to allow it.
-#if !defined(ASIO_HAS_CO_AWAIT)
-# if !defined(ASIO_DISABLE_CO_AWAIT)
-#  if defined(ASIO_MSVC)
-#   if (_MSC_FULL_VER >= 190023506)
-#    if defined(_RESUMABLE_FUNCTIONS_SUPPORTED)
-#     define ASIO_HAS_CO_AWAIT 1
-#    endif // defined(_RESUMABLE_FUNCTIONS_SUPPORTED)
-#   endif // (_MSC_FULL_VER >= 190023506)
-#  endif // defined(ASIO_MSVC)
-# endif // !defined(ASIO_DISABLE_CO_AWAIT)
-# if defined(__clang__)
-#  if (__cpp_coroutines >= 201703)
-#   if __has_include(<experimental/coroutine>)
-#    define ASIO_HAS_CO_AWAIT 1
-#   endif // __has_include(<experimental/coroutine>)
-#  endif // (__cpp_coroutines >= 201703)
-# endif // defined(__clang__)
-#endif // !defined(ASIO_HAS_CO_AWAIT)
-
-#endif // ASIO_DETAIL_CONFIG_HPP
diff --git a/lib/asio/detail/consuming_buffers.hpp b/lib/asio/detail/consuming_buffers.hpp
deleted file mode 100644
index 8127ae7..0000000
--- a/lib/asio/detail/consuming_buffers.hpp
+++ /dev/null
@@ -1,414 +0,0 @@
-//
-// detail/consuming_buffers.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_CONSUMING_BUFFERS_HPP
-#define ASIO_DETAIL_CONSUMING_BUFFERS_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-#include <cstddef>
-#include "asio/buffer.hpp"
-#include "asio/detail/buffer_sequence_adapter.hpp"
-#include "asio/detail/limits.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-// Helper template to determine the maximum number of prepared buffers.
-template <typename Buffers>
-struct prepared_buffers_max
-{
-  enum { value = buffer_sequence_adapter_base::max_buffers };
-};
-
-template <typename Elem, std::size_t N>
-struct prepared_buffers_max<boost::array<Elem, N> >
-{
-  enum { value = N };
-};
-
-#if defined(ASIO_HAS_STD_ARRAY)
-
-template <typename Elem, std::size_t N>
-struct prepared_buffers_max<std::array<Elem, N> >
-{
-  enum { value = N };
-};
-
-#endif // defined(ASIO_HAS_STD_ARRAY)
-
-// A buffer sequence used to represent a subsequence of the buffers.
-template <typename Buffer, std::size_t MaxBuffers>
-struct prepared_buffers
-{
-  typedef Buffer value_type;
-  typedef const Buffer* const_iterator;
-
-  enum { max_buffers = MaxBuffers < 16 ? MaxBuffers : 16 };
-
-  prepared_buffers() : count(0) {}
-  const_iterator begin() const { return elems; }
-  const_iterator end() const { return elems + count; }
-
-  Buffer elems[max_buffers];
-  std::size_t count;
-};
-
-// A proxy for a sub-range in a list of buffers.
-template <typename Buffer, typename Buffers, typename Buffer_Iterator>
-class consuming_buffers
-{
-public:
-  typedef prepared_buffers<Buffer, prepared_buffers_max<Buffers>::value>
-    prepared_buffers_type;
-
-  // Construct to represent the entire list of buffers.
-  explicit consuming_buffers(const Buffers& buffers)
-    : buffers_(buffers),
-      total_consumed_(0),
-      next_elem_(0),
-      next_elem_offset_(0)
-  {
-    using asio::buffer_size;
-    total_size_ = buffer_size(buffers);
-  }
-
-  // Determine if we are at the end of the buffers.
-  bool empty() const
-  {
-    return total_consumed_ >= total_size_;
-  }
-
-  // Get the buffer for a single transfer, with a size.
-  prepared_buffers_type prepare(std::size_t max_size)
-  {
-    prepared_buffers_type result;
-
-    Buffer_Iterator next = asio::buffer_sequence_begin(buffers_);
-    Buffer_Iterator end = asio::buffer_sequence_end(buffers_);
-
-    std::advance(next, next_elem_);
-    std::size_t elem_offset = next_elem_offset_;
-    while (next != end && max_size > 0 && (result.count) < result.max_buffers)
-    {
-      Buffer next_buf = Buffer(*next) + elem_offset;
-      result.elems[result.count] = asio::buffer(next_buf, max_size);
-      max_size -= result.elems[result.count].size();
-      elem_offset = 0;
-      if (result.elems[result.count].size() > 0)
-        ++result.count;
-      ++next;
-    }
-
-    return result;
-  }
-
-  // Consume the specified number of bytes from the buffers.
-  void consume(std::size_t size)
-  {
-    total_consumed_ += size;
-
-    Buffer_Iterator next = asio::buffer_sequence_begin(buffers_);
-    Buffer_Iterator end = asio::buffer_sequence_end(buffers_);
-
-    std::advance(next, next_elem_);
-    while (next != end && size > 0)
-    {
-      Buffer next_buf = Buffer(*next) + next_elem_offset_;
-      if (size < next_buf.size())
-      {
-        next_elem_offset_ += size;
-        size = 0;
-      }
-      else
-      {
-        size -= next_buf.size();
-        next_elem_offset_ = 0;
-        ++next_elem_;
-        ++next;
-      }
-    }
-  }
-
-  // Get the total number of bytes consumed from the buffers.
-  std::size_t total_consumed() const
-  {
-    return total_consumed_;
-  }
-
-private:
-  Buffers buffers_;
-  std::size_t total_size_;
-  std::size_t total_consumed_;
-  std::size_t next_elem_;
-  std::size_t next_elem_offset_;
-};
-
-// Base class of all consuming_buffers specialisations for single buffers.
-template <typename Buffer>
-class consuming_single_buffer
-{
-public:
-  // Construct to represent the entire list of buffers.
-  template <typename Buffer1>
-  explicit consuming_single_buffer(const Buffer1& buffer)
-    : buffer_(buffer),
-      total_consumed_(0)
-  {
-  }
-
-  // Determine if we are at the end of the buffers.
-  bool empty() const
-  {
-    return total_consumed_ >= buffer_.size();
-  }
-
-  // Get the buffer for a single transfer, with a size.
-  Buffer prepare(std::size_t max_size)
-  {
-    return asio::buffer(buffer_ + total_consumed_, max_size);
-  }
-
-  // Consume the specified number of bytes from the buffers.
-  void consume(std::size_t size)
-  {
-    total_consumed_ += size;
-  }
-
-  // Get the total number of bytes consumed from the buffers.
-  std::size_t total_consumed() const
-  {
-    return total_consumed_;
-  }
-
-private:
-  Buffer buffer_;
-  std::size_t total_consumed_;
-};
-
-template <>
-class consuming_buffers<mutable_buffer, mutable_buffer, const mutable_buffer*>
-  : public consuming_single_buffer<ASIO_MUTABLE_BUFFER>
-{
-public:
-  explicit consuming_buffers(const mutable_buffer& buffer)
-    : consuming_single_buffer<ASIO_MUTABLE_BUFFER>(buffer)
-  {
-  }
-};
-
-template <>
-class consuming_buffers<const_buffer, mutable_buffer, const mutable_buffer*>
-  : public consuming_single_buffer<ASIO_CONST_BUFFER>
-{
-public:
-  explicit consuming_buffers(const mutable_buffer& buffer)
-    : consuming_single_buffer<ASIO_CONST_BUFFER>(buffer)
-  {
-  }
-};
-
-template <>
-class consuming_buffers<const_buffer, const_buffer, const const_buffer*>
-  : public consuming_single_buffer<ASIO_CONST_BUFFER>
-{
-public:
-  explicit consuming_buffers(const const_buffer& buffer)
-    : consuming_single_buffer<ASIO_CONST_BUFFER>(buffer)
-  {
-  }
-};
-
-#if !defined(ASIO_NO_DEPRECATED)
-
-template <>
-class consuming_buffers<mutable_buffer,
-    mutable_buffers_1, const mutable_buffer*>
-  : public consuming_single_buffer<ASIO_MUTABLE_BUFFER>
-{
-public:
-  explicit consuming_buffers(const mutable_buffers_1& buffer)
-    : consuming_single_buffer<ASIO_MUTABLE_BUFFER>(buffer)
-  {
-  }
-};
-
-template <>
-class consuming_buffers<const_buffer, mutable_buffers_1, const mutable_buffer*>
-  : public consuming_single_buffer<ASIO_CONST_BUFFER>
-{
-public:
-  explicit consuming_buffers(const mutable_buffers_1& buffer)
-    : consuming_single_buffer<ASIO_CONST_BUFFER>(buffer)
-  {
-  }
-};
-
-template <>
-class consuming_buffers<const_buffer, const_buffers_1, const const_buffer*>
-  : public consuming_single_buffer<ASIO_CONST_BUFFER>
-{
-public:
-  explicit consuming_buffers(const const_buffers_1& buffer)
-    : consuming_single_buffer<ASIO_CONST_BUFFER>(buffer)
-  {
-  }
-};
-
-#endif // !defined(ASIO_NO_DEPRECATED)
-
-template <typename Buffer, typename Elem>
-class consuming_buffers<Buffer, boost::array<Elem, 2>,
-    typename boost::array<Elem, 2>::const_iterator>
-{
-public:
-  // Construct to represent the entire list of buffers.
-  explicit consuming_buffers(const boost::array<Elem, 2>& buffers)
-    : buffers_(buffers),
-      total_consumed_(0)
-  {
-  }
-
-  // Determine if we are at the end of the buffers.
-  bool empty() const
-  {
-    return total_consumed_ >=
-      Buffer(buffers_[0]).size() + Buffer(buffers_[1]).size();
-  }
-
-  // Get the buffer for a single transfer, with a size.
-  boost::array<Buffer, 2> prepare(std::size_t max_size)
-  {
-    boost::array<Buffer, 2> result = {{
-      Buffer(buffers_[0]), Buffer(buffers_[1]) }};
-    std::size_t buffer0_size = result[0].size();
-    result[0] = asio::buffer(result[0] + total_consumed_, max_size);
-    result[1] = asio::buffer(
-        result[1] + (total_consumed_ < buffer0_size
-          ? 0 : total_consumed_ - buffer0_size),
-        max_size - result[0].size());
-    return result;
-  }
-
-  // Consume the specified number of bytes from the buffers.
-  void consume(std::size_t size)
-  {
-    total_consumed_ += size;
-  }
-
-  // Get the total number of bytes consumed from the buffers.
-  std::size_t total_consumed() const
-  {
-    return total_consumed_;
-  }
-
-private:
-  boost::array<Elem, 2> buffers_;
-  std::size_t total_consumed_;
-};
-
-#if defined(ASIO_HAS_STD_ARRAY)
-
-template <typename Buffer, typename Elem>
-class consuming_buffers<Buffer, std::array<Elem, 2>,
-    typename std::array<Elem, 2>::const_iterator>
-{
-public:
-  // Construct to represent the entire list of buffers.
-  explicit consuming_buffers(const std::array<Elem, 2>& buffers)
-    : buffers_(buffers),
-      total_consumed_(0)
-  {
-  }
-
-  // Determine if we are at the end of the buffers.
-  bool empty() const
-  {
-    return total_consumed_ >=
-      Buffer(buffers_[0]).size() + Buffer(buffers_[1]).size();
-  }
-
-  // Get the buffer for a single transfer, with a size.
-  std::array<Buffer, 2> prepare(std::size_t max_size)
-  {
-    std::array<Buffer, 2> result = {{
-      Buffer(buffers_[0]), Buffer(buffers_[1]) }};
-    std::size_t buffer0_size = result[0].size();
-    result[0] = asio::buffer(result[0] + total_consumed_, max_size);
-    result[1] = asio::buffer(
-        result[1] + (total_consumed_ < buffer0_size
-          ? 0 : total_consumed_ - buffer0_size),
-        max_size - result[0].size());
-    return result;
-  }
-
-  // Consume the specified number of bytes from the buffers.
-  void consume(std::size_t size)
-  {
-    total_consumed_ += size;
-  }
-
-  // Get the total number of bytes consumed from the buffers.
-  std::size_t total_consumed() const
-  {
-    return total_consumed_;
-  }
-
-private:
-  std::array<Elem, 2> buffers_;
-  std::size_t total_consumed_;
-};
-
-#endif // defined(ASIO_HAS_STD_ARRAY)
-
-// Specialisation for null_buffers to ensure that the null_buffers type is
-// always passed through to the underlying read or write operation.
-template <typename Buffer>
-class consuming_buffers<Buffer, null_buffers, const mutable_buffer*>
-  : public asio::null_buffers
-{
-public:
-  consuming_buffers(const null_buffers&)
-  {
-    // No-op.
-  }
-
-  bool empty()
-  {
-    return false;
-  }
-
-  null_buffers prepare(std::size_t)
-  {
-    return null_buffers();
-  }
-
-  void consume(std::size_t)
-  {
-    // No-op.
-  }
-
-  std::size_t total_consumed() const
-  {
-    return 0;
-  }
-};
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // ASIO_DETAIL_CONSUMING_BUFFERS_HPP
diff --git a/lib/asio/detail/cstddef.hpp b/lib/asio/detail/cstddef.hpp
deleted file mode 100644
index 3912da4..0000000
--- a/lib/asio/detail/cstddef.hpp
+++ /dev/null
@@ -1,31 +0,0 @@
-//
-// detail/cstddef.hpp
-// ~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_CSTDDEF_HPP
-#define ASIO_DETAIL_CSTDDEF_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-#include <cstddef>
-
-namespace asio {
-
-#if defined(ASIO_HAS_NULLPTR)
-using std::nullptr_t;
-#else // defined(ASIO_HAS_NULLPTR)
-struct nullptr_t {};
-#endif // defined(ASIO_HAS_NULLPTR)
-
-} // namespace asio
-
-#endif // ASIO_DETAIL_CSTDDEF_HPP
diff --git a/lib/asio/detail/cstdint.hpp b/lib/asio/detail/cstdint.hpp
deleted file mode 100644
index 62342b2..0000000
--- a/lib/asio/detail/cstdint.hpp
+++ /dev/null
@@ -1,60 +0,0 @@
-//
-// detail/cstdint.hpp
-// ~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_CSTDINT_HPP
-#define ASIO_DETAIL_CSTDINT_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-
-#if defined(ASIO_HAS_CSTDINT)
-# include <cstdint>
-#else // defined(ASIO_HAS_CSTDINT)
-# include <boost/cstdint.hpp>
-#endif // defined(ASIO_HAS_CSTDINT)
-
-namespace asio {
-
-#if defined(ASIO_HAS_CSTDINT)
-using std::int16_t;
-using std::int_least16_t;
-using std::uint16_t;
-using std::uint_least16_t;
-using std::int32_t;
-using std::int_least32_t;
-using std::uint32_t;
-using std::uint_least32_t;
-using std::int64_t;
-using std::int_least64_t;
-using std::uint64_t;
-using std::uint_least64_t;
-using std::uintmax_t;
-#else // defined(ASIO_HAS_CSTDINT)
-using boost::int16_t;
-using boost::int_least16_t;
-using boost::uint16_t;
-using boost::uint_least16_t;
-using boost::int32_t;
-using boost::int_least32_t;
-using boost::uint32_t;
-using boost::uint_least32_t;
-using boost::int64_t;
-using boost::int_least64_t;
-using boost::uint64_t;
-using boost::uint_least64_t;
-using boost::uintmax_t;
-#endif // defined(ASIO_HAS_CSTDINT)
-
-} // namespace asio
-
-#endif // ASIO_DETAIL_CSTDINT_HPP
diff --git a/lib/asio/detail/date_time_fwd.hpp b/lib/asio/detail/date_time_fwd.hpp
deleted file mode 100644
index a159562..0000000
--- a/lib/asio/detail/date_time_fwd.hpp
+++ /dev/null
@@ -1,34 +0,0 @@
-//
-// detail/date_time_fwd.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_DATE_TIME_FWD_HPP
-#define ASIO_DETAIL_DATE_TIME_FWD_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-
-namespace boost {
-namespace date_time {
-
-template<class T, class TimeSystem>
-class base_time;
-
-} // namespace date_time
-namespace posix_time {
-
-class ptime;
-
-} // namespace posix_time
-} // namespace boost
-
-#endif // ASIO_DETAIL_DATE_TIME_FWD_HPP
diff --git a/lib/asio/detail/deadline_timer_service.hpp b/lib/asio/detail/deadline_timer_service.hpp
deleted file mode 100644
index f58a6e0..0000000
--- a/lib/asio/detail/deadline_timer_service.hpp
+++ /dev/null
@@ -1,278 +0,0 @@
-//
-// detail/deadline_timer_service.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_DEADLINE_TIMER_SERVICE_HPP
-#define ASIO_DETAIL_DEADLINE_TIMER_SERVICE_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-#include <cstddef>
-#include "asio/error.hpp"
-#include "asio/io_context.hpp"
-#include "asio/detail/bind_handler.hpp"
-#include "asio/detail/fenced_block.hpp"
-#include "asio/detail/memory.hpp"
-#include "asio/detail/noncopyable.hpp"
-#include "asio/detail/socket_ops.hpp"
-#include "asio/detail/socket_types.hpp"
-#include "asio/detail/timer_queue.hpp"
-#include "asio/detail/timer_queue_ptime.hpp"
-#include "asio/detail/timer_scheduler.hpp"
-#include "asio/detail/wait_handler.hpp"
-#include "asio/detail/wait_op.hpp"
-
-#if defined(ASIO_WINDOWS_RUNTIME)
-# include <chrono>
-# include <thread>
-#endif // defined(ASIO_WINDOWS_RUNTIME)
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-template <typename Time_Traits>
-class deadline_timer_service
-  : public service_base<deadline_timer_service<Time_Traits> >
-{
-public:
-  // The time type.
-  typedef typename Time_Traits::time_type time_type;
-
-  // The duration type.
-  typedef typename Time_Traits::duration_type duration_type;
-
-  // The implementation type of the timer. This type is dependent on the
-  // underlying implementation of the timer service.
-  struct implementation_type
-    : private asio::detail::noncopyable
-  {
-    time_type expiry;
-    bool might_have_pending_waits;
-    typename timer_queue<Time_Traits>::per_timer_data timer_data;
-  };
-
-  // Constructor.
-  deadline_timer_service(asio::io_context& io_context)
-    : service_base<deadline_timer_service<Time_Traits> >(io_context),
-      scheduler_(asio::use_service<timer_scheduler>(io_context))
-  {
-    scheduler_.init_task();
-    scheduler_.add_timer_queue(timer_queue_);
-  }
-
-  // Destructor.
-  ~deadline_timer_service()
-  {
-    scheduler_.remove_timer_queue(timer_queue_);
-  }
-
-  // Destroy all user-defined handler objects owned by the service.
-  void shutdown()
-  {
-  }
-
-  // Construct a new timer implementation.
-  void construct(implementation_type& impl)
-  {
-    impl.expiry = time_type();
-    impl.might_have_pending_waits = false;
-  }
-
-  // Destroy a timer implementation.
-  void destroy(implementation_type& impl)
-  {
-    asio::error_code ec;
-    cancel(impl, ec);
-  }
-
-  // Move-construct a new serial port implementation.
-  void move_construct(implementation_type& impl,
-      implementation_type& other_impl)
-  {
-    scheduler_.move_timer(timer_queue_, impl.timer_data, other_impl.timer_data);
-
-    impl.expiry = other_impl.expiry;
-    other_impl.expiry = time_type();
-
-    impl.might_have_pending_waits = other_impl.might_have_pending_waits;
-    other_impl.might_have_pending_waits = false;
-  }
-
-  // Move-assign from another serial port implementation.
-  void move_assign(implementation_type& impl,
-      deadline_timer_service& other_service,
-      implementation_type& other_impl)
-  {
-    if (this != &other_service)
-      if (impl.might_have_pending_waits)
-        scheduler_.cancel_timer(timer_queue_, impl.timer_data);
-
-    other_service.scheduler_.move_timer(other_service.timer_queue_,
-        impl.timer_data, other_impl.timer_data);
-
-    impl.expiry = other_impl.expiry;
-    other_impl.expiry = time_type();
-
-    impl.might_have_pending_waits = other_impl.might_have_pending_waits;
-    other_impl.might_have_pending_waits = false;
-  }
-
-  // Cancel any asynchronous wait operations associated with the timer.
-  std::size_t cancel(implementation_type& impl, asio::error_code& ec)
-  {
-    if (!impl.might_have_pending_waits)
-    {
-      ec = asio::error_code();
-      return 0;
-    }
-
-    ASIO_HANDLER_OPERATION((scheduler_.context(),
-          "deadline_timer", &impl, 0, "cancel"));
-
-    std::size_t count = scheduler_.cancel_timer(timer_queue_, impl.timer_data);
-    impl.might_have_pending_waits = false;
-    ec = asio::error_code();
-    return count;
-  }
-
-  // Cancels one asynchronous wait operation associated with the timer.
-  std::size_t cancel_one(implementation_type& impl,
-      asio::error_code& ec)
-  {
-    if (!impl.might_have_pending_waits)
-    {
-      ec = asio::error_code();
-      return 0;
-    }
-
-    ASIO_HANDLER_OPERATION((scheduler_.context(),
-          "deadline_timer", &impl, 0, "cancel_one"));
-
-    std::size_t count = scheduler_.cancel_timer(
-        timer_queue_, impl.timer_data, 1);
-    if (count == 0)
-      impl.might_have_pending_waits = false;
-    ec = asio::error_code();
-    return count;
-  }
-
-  // Get the expiry time for the timer as an absolute time.
-  time_type expiry(const implementation_type& impl) const
-  {
-    return impl.expiry;
-  }
-
-  // Get the expiry time for the timer as an absolute time.
-  time_type expires_at(const implementation_type& impl) const
-  {
-    return impl.expiry;
-  }
-
-  // Get the expiry time for the timer relative to now.
-  duration_type expires_from_now(const implementation_type& impl) const
-  {
-    return Time_Traits::subtract(this->expiry(impl), Time_Traits::now());
-  }
-
-  // Set the expiry time for the timer as an absolute time.
-  std::size_t expires_at(implementation_type& impl,
-      const time_type& expiry_time, asio::error_code& ec)
-  {
-    std::size_t count = cancel(impl, ec);
-    impl.expiry = expiry_time;
-    ec = asio::error_code();
-    return count;
-  }
-
-  // Set the expiry time for the timer relative to now.
-  std::size_t expires_after(implementation_type& impl,
-      const duration_type& expiry_time, asio::error_code& ec)
-  {
-    return expires_at(impl,
-        Time_Traits::add(Time_Traits::now(), expiry_time), ec);
-  }
-
-  // Set the expiry time for the timer relative to now.
-  std::size_t expires_from_now(implementation_type& impl,
-      const duration_type& expiry_time, asio::error_code& ec)
-  {
-    return expires_at(impl,
-        Time_Traits::add(Time_Traits::now(), expiry_time), ec);
-  }
-
-  // Perform a blocking wait on the timer.
-  void wait(implementation_type& impl, asio::error_code& ec)
-  {
-    time_type now = Time_Traits::now();
-    ec = asio::error_code();
-    while (Time_Traits::less_than(now, impl.expiry) && !ec)
-    {
-      this->do_wait(Time_Traits::to_posix_duration(
-            Time_Traits::subtract(impl.expiry, now)), ec);
-      now = Time_Traits::now();
-    }
-  }
-
-  // Start an asynchronous wait on the timer.
-  template <typename Handler>
-  void async_wait(implementation_type& impl, Handler& handler)
-  {
-    // Allocate and construct an operation to wrap the handler.
-    typedef wait_handler<Handler> op;
-    typename op::ptr p = { asio::detail::addressof(handler),
-      op::ptr::allocate(handler), 0 };
-    p.p = new (p.v) op(handler);
-
-    impl.might_have_pending_waits = true;
-
-    ASIO_HANDLER_CREATION((scheduler_.context(),
-          *p.p, "deadline_timer", &impl, 0, "async_wait"));
-
-    scheduler_.schedule_timer(timer_queue_, impl.expiry, impl.timer_data, p.p);
-    p.v = p.p = 0;
-  }
-
-private:
-  // Helper function to wait given a duration type. The duration type should
-  // either be of type boost::posix_time::time_duration, or implement the
-  // required subset of its interface.
-  template <typename Duration>
-  void do_wait(const Duration& timeout, asio::error_code& ec)
-  {
-#if defined(ASIO_WINDOWS_RUNTIME)
-    std::this_thread::sleep_for(
-        std::chrono::seconds(timeout.total_seconds())
-        + std::chrono::microseconds(timeout.total_microseconds()));
-    ec = asio::error_code();
-#else // defined(ASIO_WINDOWS_RUNTIME)
-    ::timeval tv;
-    tv.tv_sec = timeout.total_seconds();
-    tv.tv_usec = timeout.total_microseconds() % 1000000;
-    socket_ops::select(0, 0, 0, 0, &tv, ec);
-#endif // defined(ASIO_WINDOWS_RUNTIME)
-  }
-
-  // The queue of timers.
-  timer_queue<Time_Traits> timer_queue_;
-
-  // The object that schedules and executes timers. Usually a reactor.
-  timer_scheduler& scheduler_;
-};
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // ASIO_DETAIL_DEADLINE_TIMER_SERVICE_HPP
diff --git a/lib/asio/detail/dependent_type.hpp b/lib/asio/detail/dependent_type.hpp
deleted file mode 100644
index 85b41c8..0000000
--- a/lib/asio/detail/dependent_type.hpp
+++ /dev/null
@@ -1,36 +0,0 @@
-//
-// detail/dependent_type.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_DEPENDENT_TYPE_HPP
-#define ASIO_DETAIL_DEPENDENT_TYPE_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-template <typename DependsOn, typename T>
-struct dependent_type
-{
-  typedef T type;
-};
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // ASIO_DETAIL_DEPENDENT_TYPE_HPP
diff --git a/lib/asio/detail/descriptor_ops.hpp b/lib/asio/detail/descriptor_ops.hpp
deleted file mode 100644
index 9c0560a..0000000
--- a/lib/asio/detail/descriptor_ops.hpp
+++ /dev/null
@@ -1,121 +0,0 @@
-//
-// detail/descriptor_ops.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_DESCRIPTOR_OPS_HPP
-#define ASIO_DETAIL_DESCRIPTOR_OPS_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-
-#if !defined(ASIO_WINDOWS) \
-  && !defined(ASIO_WINDOWS_RUNTIME) \
-  && !defined(__CYGWIN__)
-
-#include <cstddef>
-#include "asio/error.hpp"
-#include "asio/error_code.hpp"
-#include "asio/detail/socket_types.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-namespace descriptor_ops {
-
-// Descriptor state bits.
-enum
-{
-  // The user wants a non-blocking descriptor.
-  user_set_non_blocking = 1,
-
-  // The descriptor has been set non-blocking.
-  internal_non_blocking = 2,
-
-  // Helper "state" used to determine whether the descriptor is non-blocking.
-  non_blocking = user_set_non_blocking | internal_non_blocking,
-
-  // The descriptor may have been dup()-ed.
-  possible_dup = 4
-};
-
-typedef unsigned char state_type;
-
-template <typename ReturnType>
-inline ReturnType error_wrapper(ReturnType return_value,
-    asio::error_code& ec)
-{
-  ec = asio::error_code(errno,
-      asio::error::get_system_category());
-  return return_value;
-}
-
-ASIO_DECL int open(const char* path, int flags,
-    asio::error_code& ec);
-
-ASIO_DECL int close(int d, state_type& state,
-    asio::error_code& ec);
-
-ASIO_DECL bool set_user_non_blocking(int d,
-    state_type& state, bool value, asio::error_code& ec);
-
-ASIO_DECL bool set_internal_non_blocking(int d,
-    state_type& state, bool value, asio::error_code& ec);
-
-typedef iovec buf;
-
-ASIO_DECL std::size_t sync_read(int d, state_type state, buf* bufs,
-    std::size_t count, bool all_empty, asio::error_code& ec);
-
-ASIO_DECL bool non_blocking_read(int d, buf* bufs, std::size_t count,
-    asio::error_code& ec, std::size_t& bytes_transferred);
-
-ASIO_DECL std::size_t sync_write(int d, state_type state,
-    const buf* bufs, std::size_t count, bool all_empty,
-    asio::error_code& ec);
-
-ASIO_DECL bool non_blocking_write(int d,
-    const buf* bufs, std::size_t count,
-    asio::error_code& ec, std::size_t& bytes_transferred);
-
-ASIO_DECL int ioctl(int d, state_type& state, long cmd,
-    ioctl_arg_type* arg, asio::error_code& ec);
-
-ASIO_DECL int fcntl(int d, int cmd, asio::error_code& ec);
-
-ASIO_DECL int fcntl(int d, int cmd,
-    long arg, asio::error_code& ec);
-
-ASIO_DECL int poll_read(int d,
-    state_type state, asio::error_code& ec);
-
-ASIO_DECL int poll_write(int d,
-    state_type state, asio::error_code& ec);
-
-ASIO_DECL int poll_error(int d,
-    state_type state, asio::error_code& ec);
-
-} // namespace descriptor_ops
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#if defined(ASIO_HEADER_ONLY)
-# include "asio/detail/impl/descriptor_ops.ipp"
-#endif // defined(ASIO_HEADER_ONLY)
-
-#endif // !defined(ASIO_WINDOWS)
-       //   && !defined(ASIO_WINDOWS_RUNTIME)
-       //   && !defined(__CYGWIN__)
-
-#endif // ASIO_DETAIL_DESCRIPTOR_OPS_HPP
diff --git a/lib/asio/detail/descriptor_read_op.hpp b/lib/asio/detail/descriptor_read_op.hpp
deleted file mode 100644
index 6db4bfb..0000000
--- a/lib/asio/detail/descriptor_read_op.hpp
+++ /dev/null
@@ -1,128 +0,0 @@
-//
-// detail/descriptor_read_op.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_DESCRIPTOR_READ_OP_HPP
-#define ASIO_DETAIL_DESCRIPTOR_READ_OP_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-
-#if !defined(ASIO_WINDOWS) && !defined(__CYGWIN__)
-
-#include "asio/detail/bind_handler.hpp"
-#include "asio/detail/buffer_sequence_adapter.hpp"
-#include "asio/detail/descriptor_ops.hpp"
-#include "asio/detail/fenced_block.hpp"
-#include "asio/detail/handler_work.hpp"
-#include "asio/detail/memory.hpp"
-#include "asio/detail/reactor_op.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-template <typename MutableBufferSequence>
-class descriptor_read_op_base : public reactor_op
-{
-public:
-  descriptor_read_op_base(int descriptor,
-      const MutableBufferSequence& buffers, func_type complete_func)
-    : reactor_op(&descriptor_read_op_base::do_perform, complete_func),
-      descriptor_(descriptor),
-      buffers_(buffers)
-  {
-  }
-
-  static status do_perform(reactor_op* base)
-  {
-    descriptor_read_op_base* o(static_cast<descriptor_read_op_base*>(base));
-
-    buffer_sequence_adapter<asio::mutable_buffer,
-        MutableBufferSequence> bufs(o->buffers_);
-
-    status result = descriptor_ops::non_blocking_read(o->descriptor_,
-        bufs.buffers(), bufs.count(), o->ec_, o->bytes_transferred_)
-      ? done : not_done;
-
-    ASIO_HANDLER_REACTOR_OPERATION((*o, "non_blocking_read",
-          o->ec_, o->bytes_transferred_));
-
-    return result;
-  }
-
-private:
-  int descriptor_;
-  MutableBufferSequence buffers_;
-};
-
-template <typename MutableBufferSequence, typename Handler>
-class descriptor_read_op
-  : public descriptor_read_op_base<MutableBufferSequence>
-{
-public:
-  ASIO_DEFINE_HANDLER_PTR(descriptor_read_op);
-
-  descriptor_read_op(int descriptor,
-      const MutableBufferSequence& buffers, Handler& handler)
-    : descriptor_read_op_base<MutableBufferSequence>(
-        descriptor, buffers, &descriptor_read_op::do_complete),
-      handler_(ASIO_MOVE_CAST(Handler)(handler))
-  {
-    handler_work<Handler>::start(handler_);
-  }
-
-  static void do_complete(void* owner, operation* base,
-      const asio::error_code& /*ec*/,
-      std::size_t /*bytes_transferred*/)
-  {
-    // Take ownership of the handler object.
-    descriptor_read_op* o(static_cast<descriptor_read_op*>(base));
-    ptr p = { asio::detail::addressof(o->handler_), o, o };
-    handler_work<Handler> w(o->handler_);
-
-    ASIO_HANDLER_COMPLETION((*o));
-
-    // Make a copy of the handler so that the memory can be deallocated before
-    // the upcall is made. Even if we're not about to make an upcall, a
-    // sub-object of the handler may be the true owner of the memory associated
-    // with the handler. Consequently, a local copy of the handler is required
-    // to ensure that any owning sub-object remains valid until after we have
-    // deallocated the memory here.
-    detail::binder2<Handler, asio::error_code, std::size_t>
-      handler(o->handler_, o->ec_, o->bytes_transferred_);
-    p.h = asio::detail::addressof(handler.handler_);
-    p.reset();
-
-    // Make the upcall if required.
-    if (owner)
-    {
-      fenced_block b(fenced_block::half);
-      ASIO_HANDLER_INVOCATION_BEGIN((handler.arg1_, handler.arg2_));
-      w.complete(handler, handler.handler_);
-      ASIO_HANDLER_INVOCATION_END;
-    }
-  }
-
-private:
-  Handler handler_;
-};
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // !defined(ASIO_WINDOWS) && !defined(__CYGWIN__)
-
-#endif // ASIO_DETAIL_DESCRIPTOR_READ_OP_HPP
diff --git a/lib/asio/detail/descriptor_write_op.hpp b/lib/asio/detail/descriptor_write_op.hpp
deleted file mode 100644
index a9ec2a9..0000000
--- a/lib/asio/detail/descriptor_write_op.hpp
+++ /dev/null
@@ -1,128 +0,0 @@
-//
-// detail/descriptor_write_op.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_DESCRIPTOR_WRITE_OP_HPP
-#define ASIO_DETAIL_DESCRIPTOR_WRITE_OP_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-
-#if !defined(ASIO_WINDOWS) && !defined(__CYGWIN__)
-
-#include "asio/detail/bind_handler.hpp"
-#include "asio/detail/buffer_sequence_adapter.hpp"
-#include "asio/detail/descriptor_ops.hpp"
-#include "asio/detail/fenced_block.hpp"
-#include "asio/detail/handler_work.hpp"
-#include "asio/detail/memory.hpp"
-#include "asio/detail/reactor_op.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-template <typename ConstBufferSequence>
-class descriptor_write_op_base : public reactor_op
-{
-public:
-  descriptor_write_op_base(int descriptor,
-      const ConstBufferSequence& buffers, func_type complete_func)
-    : reactor_op(&descriptor_write_op_base::do_perform, complete_func),
-      descriptor_(descriptor),
-      buffers_(buffers)
-  {
-  }
-
-  static status do_perform(reactor_op* base)
-  {
-    descriptor_write_op_base* o(static_cast<descriptor_write_op_base*>(base));
-
-    buffer_sequence_adapter<asio::const_buffer,
-        ConstBufferSequence> bufs(o->buffers_);
-
-    status result = descriptor_ops::non_blocking_write(o->descriptor_,
-        bufs.buffers(), bufs.count(), o->ec_, o->bytes_transferred_)
-      ? done : not_done;
-
-    ASIO_HANDLER_REACTOR_OPERATION((*o, "non_blocking_write",
-          o->ec_, o->bytes_transferred_));
-
-    return result;
-  }
-
-private:
-  int descriptor_;
-  ConstBufferSequence buffers_;
-};
-
-template <typename ConstBufferSequence, typename Handler>
-class descriptor_write_op
-  : public descriptor_write_op_base<ConstBufferSequence>
-{
-public:
-  ASIO_DEFINE_HANDLER_PTR(descriptor_write_op);
-
-  descriptor_write_op(int descriptor,
-      const ConstBufferSequence& buffers, Handler& handler)
-    : descriptor_write_op_base<ConstBufferSequence>(
-        descriptor, buffers, &descriptor_write_op::do_complete),
-      handler_(ASIO_MOVE_CAST(Handler)(handler))
-  {
-    handler_work<Handler>::start(handler_);
-  }
-
-  static void do_complete(void* owner, operation* base,
-      const asio::error_code& /*ec*/,
-      std::size_t /*bytes_transferred*/)
-  {
-    // Take ownership of the handler object.
-    descriptor_write_op* o(static_cast<descriptor_write_op*>(base));
-    ptr p = { asio::detail::addressof(o->handler_), o, o };
-    handler_work<Handler> w(o->handler_);
-
-    ASIO_HANDLER_COMPLETION((*o));
-
-    // Make a copy of the handler so that the memory can be deallocated before
-    // the upcall is made. Even if we're not about to make an upcall, a
-    // sub-object of the handler may be the true owner of the memory associated
-    // with the handler. Consequently, a local copy of the handler is required
-    // to ensure that any owning sub-object remains valid until after we have
-    // deallocated the memory here.
-    detail::binder2<Handler, asio::error_code, std::size_t>
-      handler(o->handler_, o->ec_, o->bytes_transferred_);
-    p.h = asio::detail::addressof(handler.handler_);
-    p.reset();
-
-    // Make the upcall if required.
-    if (owner)
-    {
-      fenced_block b(fenced_block::half);
-      ASIO_HANDLER_INVOCATION_BEGIN((handler.arg1_, handler.arg2_));
-      w.complete(handler, handler.handler_);
-      ASIO_HANDLER_INVOCATION_END;
-    }
-  }
-
-private:
-  Handler handler_;
-};
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // !defined(ASIO_WINDOWS) && !defined(__CYGWIN__)
-
-#endif // ASIO_DETAIL_DESCRIPTOR_WRITE_OP_HPP
diff --git a/lib/asio/detail/dev_poll_reactor.hpp b/lib/asio/detail/dev_poll_reactor.hpp
deleted file mode 100644
index e9e4e29..0000000
--- a/lib/asio/detail/dev_poll_reactor.hpp
+++ /dev/null
@@ -1,218 +0,0 @@
-//
-// detail/dev_poll_reactor.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_DEV_POLL_REACTOR_HPP
-#define ASIO_DETAIL_DEV_POLL_REACTOR_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-
-#if defined(ASIO_HAS_DEV_POLL)
-
-#include <cstddef>
-#include <vector>
-#include <sys/devpoll.h>
-#include "asio/detail/hash_map.hpp"
-#include "asio/detail/limits.hpp"
-#include "asio/detail/mutex.hpp"
-#include "asio/detail/op_queue.hpp"
-#include "asio/detail/reactor_op.hpp"
-#include "asio/detail/reactor_op_queue.hpp"
-#include "asio/detail/select_interrupter.hpp"
-#include "asio/detail/socket_types.hpp"
-#include "asio/detail/timer_queue_base.hpp"
-#include "asio/detail/timer_queue_set.hpp"
-#include "asio/detail/wait_op.hpp"
-#include "asio/execution_context.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-class dev_poll_reactor
-  : public execution_context_service_base<dev_poll_reactor>
-{
-public:
-  enum op_types { read_op = 0, write_op = 1,
-    connect_op = 1, except_op = 2, max_ops = 3 };
-
-  // Per-descriptor data.
-  struct per_descriptor_data
-  {
-  };
-
-  // Constructor.
-  ASIO_DECL dev_poll_reactor(asio::execution_context& ctx);
-
-  // Destructor.
-  ASIO_DECL ~dev_poll_reactor();
-
-  // Destroy all user-defined handler objects owned by the service.
-  ASIO_DECL void shutdown();
-
-  // Recreate internal descriptors following a fork.
-  ASIO_DECL void notify_fork(
-      asio::execution_context::fork_event fork_ev);
-
-  // Initialise the task.
-  ASIO_DECL void init_task();
-
-  // Register a socket with the reactor. Returns 0 on success, system error
-  // code on failure.
-  ASIO_DECL int register_descriptor(socket_type, per_descriptor_data&);
-
-  // Register a descriptor with an associated single operation. Returns 0 on
-  // success, system error code on failure.
-  ASIO_DECL int register_internal_descriptor(
-      int op_type, socket_type descriptor,
-      per_descriptor_data& descriptor_data, reactor_op* op);
-
-  // Move descriptor registration from one descriptor_data object to another.
-  ASIO_DECL void move_descriptor(socket_type descriptor,
-      per_descriptor_data& target_descriptor_data,
-      per_descriptor_data& source_descriptor_data);
-
-  // Post a reactor operation for immediate completion.
-  void post_immediate_completion(reactor_op* op, bool is_continuation)
-  {
-    scheduler_.post_immediate_completion(op, is_continuation);
-  }
-
-  // Start a new operation. The reactor operation will be performed when the
-  // given descriptor is flagged as ready, or an error has occurred.
-  ASIO_DECL void start_op(int op_type, socket_type descriptor,
-      per_descriptor_data&, reactor_op* op,
-      bool is_continuation, bool allow_speculative);
-
-  // Cancel all operations associated with the given descriptor. The
-  // handlers associated with the descriptor will be invoked with the
-  // operation_aborted error.
-  ASIO_DECL void cancel_ops(socket_type descriptor, per_descriptor_data&);
-
-  // Cancel any operations that are running against the descriptor and remove
-  // its registration from the reactor. The reactor resources associated with
-  // the descriptor must be released by calling cleanup_descriptor_data.
-  ASIO_DECL void deregister_descriptor(socket_type descriptor,
-      per_descriptor_data&, bool closing);
-
-  // Remove the descriptor's registration from the reactor. The reactor
-  // resources associated with the descriptor must be released by calling
-  // cleanup_descriptor_data.
-  ASIO_DECL void deregister_internal_descriptor(
-      socket_type descriptor, per_descriptor_data&);
-
-  // Perform any post-deregistration cleanup tasks associated with the
-  // descriptor data.
-  ASIO_DECL void cleanup_descriptor_data(per_descriptor_data&);
-
-  // Add a new timer queue to the reactor.
-  template <typename Time_Traits>
-  void add_timer_queue(timer_queue<Time_Traits>& queue);
-
-  // Remove a timer queue from the reactor.
-  template <typename Time_Traits>
-  void remove_timer_queue(timer_queue<Time_Traits>& queue);
-
-  // Schedule a new operation in the given timer queue to expire at the
-  // specified absolute time.
-  template <typename Time_Traits>
-  void schedule_timer(timer_queue<Time_Traits>& queue,
-      const typename Time_Traits::time_type& time,
-      typename timer_queue<Time_Traits>::per_timer_data& timer, wait_op* op);
-
-  // Cancel the timer operations associated with the given token. Returns the
-  // number of operations that have been posted or dispatched.
-  template <typename Time_Traits>
-  std::size_t cancel_timer(timer_queue<Time_Traits>& queue,
-      typename timer_queue<Time_Traits>::per_timer_data& timer,
-      std::size_t max_cancelled = (std::numeric_limits<std::size_t>::max)());
-
-  // Move the timer operations associated with the given timer.
-  template <typename Time_Traits>
-  void move_timer(timer_queue<Time_Traits>& queue,
-      typename timer_queue<Time_Traits>::per_timer_data& target,
-      typename timer_queue<Time_Traits>::per_timer_data& source);
-
-  // Run /dev/poll once until interrupted or events are ready to be dispatched.
-  ASIO_DECL void run(long usec, op_queue<operation>& ops);
-
-  // Interrupt the select loop.
-  ASIO_DECL void interrupt();
-
-private:
-  // Create the /dev/poll file descriptor. Throws an exception if the descriptor
-  // cannot be created.
-  ASIO_DECL static int do_dev_poll_create();
-
-  // Helper function to add a new timer queue.
-  ASIO_DECL void do_add_timer_queue(timer_queue_base& queue);
-
-  // Helper function to remove a timer queue.
-  ASIO_DECL void do_remove_timer_queue(timer_queue_base& queue);
-
-  // Get the timeout value for the /dev/poll DP_POLL operation. The timeout
-  // value is returned as a number of milliseconds. A return value of -1
-  // indicates that the poll should block indefinitely.
-  ASIO_DECL int get_timeout(int msec);
-
-  // Cancel all operations associated with the given descriptor. The do_cancel
-  // function of the handler objects will be invoked. This function does not
-  // acquire the dev_poll_reactor's mutex.
-  ASIO_DECL void cancel_ops_unlocked(socket_type descriptor,
-      const asio::error_code& ec);
-
-  // Add a pending event entry for the given descriptor.
-  ASIO_DECL ::pollfd& add_pending_event_change(int descriptor);
-
-  // The scheduler implementation used to post completions.
-  scheduler& scheduler_;
-
-  // Mutex to protect access to internal data.
-  asio::detail::mutex mutex_;
-
-  // The /dev/poll file descriptor.
-  int dev_poll_fd_;
-
-  // Vector of /dev/poll events waiting to be written to the descriptor.
-  std::vector< ::pollfd> pending_event_changes_;
-
-  // Hash map to associate a descriptor with a pending event change index.
-  hash_map<int, std::size_t> pending_event_change_index_;
-
-  // The interrupter is used to break a blocking DP_POLL operation.
-  select_interrupter interrupter_;
-
-  // The queues of read, write and except operations.
-  reactor_op_queue<socket_type> op_queue_[max_ops];
-
-  // The timer queues.
-  timer_queue_set timer_queues_;
-
-  // Whether the service has been shut down.
-  bool shutdown_;
-};
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#include "asio/detail/impl/dev_poll_reactor.hpp"
-#if defined(ASIO_HEADER_ONLY)
-# include "asio/detail/impl/dev_poll_reactor.ipp"
-#endif // defined(ASIO_HEADER_ONLY)
-
-#endif // defined(ASIO_HAS_DEV_POLL)
-
-#endif // ASIO_DETAIL_DEV_POLL_REACTOR_HPP
diff --git a/lib/asio/detail/epoll_reactor.hpp b/lib/asio/detail/epoll_reactor.hpp
deleted file mode 100644
index 5f58109..0000000
--- a/lib/asio/detail/epoll_reactor.hpp
+++ /dev/null
@@ -1,266 +0,0 @@
-//
-// detail/epoll_reactor.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_EPOLL_REACTOR_HPP
-#define ASIO_DETAIL_EPOLL_REACTOR_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-
-#if defined(ASIO_HAS_EPOLL)
-
-#include "asio/detail/atomic_count.hpp"
-#include "asio/detail/conditionally_enabled_mutex.hpp"
-#include "asio/detail/limits.hpp"
-#include "asio/detail/object_pool.hpp"
-#include "asio/detail/op_queue.hpp"
-#include "asio/detail/reactor_op.hpp"
-#include "asio/detail/select_interrupter.hpp"
-#include "asio/detail/socket_types.hpp"
-#include "asio/detail/timer_queue_base.hpp"
-#include "asio/detail/timer_queue_set.hpp"
-#include "asio/detail/wait_op.hpp"
-#include "asio/execution_context.hpp"
-
-#if defined(ASIO_HAS_TIMERFD)
-# include <sys/timerfd.h>
-#endif // defined(ASIO_HAS_TIMERFD)
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-class epoll_reactor
-  : public execution_context_service_base<epoll_reactor>
-{
-private:
-  // The mutex type used by this reactor.
-  typedef conditionally_enabled_mutex mutex;
-
-public:
-  enum op_types { read_op = 0, write_op = 1,
-    connect_op = 1, except_op = 2, max_ops = 3 };
-
-  // Per-descriptor queues.
-  class descriptor_state : operation
-  {
-    friend class epoll_reactor;
-    friend class object_pool_access;
-
-    descriptor_state* next_;
-    descriptor_state* prev_;
-
-    mutex mutex_;
-    epoll_reactor* reactor_;
-    int descriptor_;
-    uint32_t registered_events_;
-    op_queue<reactor_op> op_queue_[max_ops];
-    bool try_speculative_[max_ops];
-    bool shutdown_;
-
-    ASIO_DECL descriptor_state(bool locking);
-    void set_ready_events(uint32_t events) { task_result_ = events; }
-    void add_ready_events(uint32_t events) { task_result_ |= events; }
-    ASIO_DECL operation* perform_io(uint32_t events);
-    ASIO_DECL static void do_complete(
-        void* owner, operation* base,
-        const asio::error_code& ec, std::size_t bytes_transferred);
-  };
-
-  // Per-descriptor data.
-  typedef descriptor_state* per_descriptor_data;
-
-  // Constructor.
-  ASIO_DECL epoll_reactor(asio::execution_context& ctx);
-
-  // Destructor.
-  ASIO_DECL ~epoll_reactor();
-
-  // Destroy all user-defined handler objects owned by the service.
-  ASIO_DECL void shutdown();
-
-  // Recreate internal descriptors following a fork.
-  ASIO_DECL void notify_fork(
-      asio::execution_context::fork_event fork_ev);
-
-  // Initialise the task.
-  ASIO_DECL void init_task();
-
-  // Register a socket with the reactor. Returns 0 on success, system error
-  // code on failure.
-  ASIO_DECL int register_descriptor(socket_type descriptor,
-      per_descriptor_data& descriptor_data);
-
-  // Register a descriptor with an associated single operation. Returns 0 on
-  // success, system error code on failure.
-  ASIO_DECL int register_internal_descriptor(
-      int op_type, socket_type descriptor,
-      per_descriptor_data& descriptor_data, reactor_op* op);
-
-  // Move descriptor registration from one descriptor_data object to another.
-  ASIO_DECL void move_descriptor(socket_type descriptor,
-      per_descriptor_data& target_descriptor_data,
-      per_descriptor_data& source_descriptor_data);
-
-  // Post a reactor operation for immediate completion.
-  void post_immediate_completion(reactor_op* op, bool is_continuation)
-  {
-    scheduler_.post_immediate_completion(op, is_continuation);
-  }
-
-  // Start a new operation. The reactor operation will be performed when the
-  // given descriptor is flagged as ready, or an error has occurred.
-  ASIO_DECL void start_op(int op_type, socket_type descriptor,
-      per_descriptor_data& descriptor_data, reactor_op* op,
-      bool is_continuation, bool allow_speculative);
-
-  // Cancel all operations associated with the given descriptor. The
-  // handlers associated with the descriptor will be invoked with the
-  // operation_aborted error.
-  ASIO_DECL void cancel_ops(socket_type descriptor,
-      per_descriptor_data& descriptor_data);
-
-  // Cancel any operations that are running against the descriptor and remove
-  // its registration from the reactor. The reactor resources associated with
-  // the descriptor must be released by calling cleanup_descriptor_data.
-  ASIO_DECL void deregister_descriptor(socket_type descriptor,
-      per_descriptor_data& descriptor_data, bool closing);
-
-  // Remove the descriptor's registration from the reactor. The reactor
-  // resources associated with the descriptor must be released by calling
-  // cleanup_descriptor_data.
-  ASIO_DECL void deregister_internal_descriptor(
-      socket_type descriptor, per_descriptor_data& descriptor_data);
-
-  // Perform any post-deregistration cleanup tasks associated with the
-  // descriptor data.
-  ASIO_DECL void cleanup_descriptor_data(
-      per_descriptor_data& descriptor_data);
-
-  // Add a new timer queue to the reactor.
-  template <typename Time_Traits>
-  void add_timer_queue(timer_queue<Time_Traits>& timer_queue);
-
-  // Remove a timer queue from the reactor.
-  template <typename Time_Traits>
-  void remove_timer_queue(timer_queue<Time_Traits>& timer_queue);
-
-  // Schedule a new operation in the given timer queue to expire at the
-  // specified absolute time.
-  template <typename Time_Traits>
-  void schedule_timer(timer_queue<Time_Traits>& queue,
-      const typename Time_Traits::time_type& time,
-      typename timer_queue<Time_Traits>::per_timer_data& timer, wait_op* op);
-
-  // Cancel the timer operations associated with the given token. Returns the
-  // number of operations that have been posted or dispatched.
-  template <typename Time_Traits>
-  std::size_t cancel_timer(timer_queue<Time_Traits>& queue,
-      typename timer_queue<Time_Traits>::per_timer_data& timer,
-      std::size_t max_cancelled = (std::numeric_limits<std::size_t>::max)());
-
-  // Move the timer operations associated with the given timer.
-  template <typename Time_Traits>
-  void move_timer(timer_queue<Time_Traits>& queue,
-      typename timer_queue<Time_Traits>::per_timer_data& target,
-      typename timer_queue<Time_Traits>::per_timer_data& source);
-
-  // Run epoll once until interrupted or events are ready to be dispatched.
-  ASIO_DECL void run(long usec, op_queue<operation>& ops);
-
-  // Interrupt the select loop.
-  ASIO_DECL void interrupt();
-
-private:
-  // The hint to pass to epoll_create to size its data structures.
-  enum { epoll_size = 20000 };
-
-  // Create the epoll file descriptor. Throws an exception if the descriptor
-  // cannot be created.
-  ASIO_DECL static int do_epoll_create();
-
-  // Create the timerfd file descriptor. Does not throw.
-  ASIO_DECL static int do_timerfd_create();
-
-  // Allocate a new descriptor state object.
-  ASIO_DECL descriptor_state* allocate_descriptor_state();
-
-  // Free an existing descriptor state object.
-  ASIO_DECL void free_descriptor_state(descriptor_state* s);
-
-  // Helper function to add a new timer queue.
-  ASIO_DECL void do_add_timer_queue(timer_queue_base& queue);
-
-  // Helper function to remove a timer queue.
-  ASIO_DECL void do_remove_timer_queue(timer_queue_base& queue);
-
-  // Called to recalculate and update the timeout.
-  ASIO_DECL void update_timeout();
-
-  // Get the timeout value for the epoll_wait call. The timeout value is
-  // returned as a number of milliseconds. A return value of -1 indicates
-  // that epoll_wait should block indefinitely.
-  ASIO_DECL int get_timeout(int msec);
-
-#if defined(ASIO_HAS_TIMERFD)
-  // Get the timeout value for the timer descriptor. The return value is the
-  // flag argument to be used when calling timerfd_settime.
-  ASIO_DECL int get_timeout(itimerspec& ts);
-#endif // defined(ASIO_HAS_TIMERFD)
-
-  // The scheduler implementation used to post completions.
-  scheduler& scheduler_;
-
-  // Mutex to protect access to internal data.
-  mutex mutex_;
-
-  // The interrupter is used to break a blocking epoll_wait call.
-  select_interrupter interrupter_;
-
-  // The epoll file descriptor.
-  int epoll_fd_;
-
-  // The timer file descriptor.
-  int timer_fd_;
-
-  // The timer queues.
-  timer_queue_set timer_queues_;
-
-  // Whether the service has been shut down.
-  bool shutdown_;
-
-  // Mutex to protect access to the registered descriptors.
-  mutex registered_descriptors_mutex_;
-
-  // Keep track of all registered descriptors.
-  object_pool<descriptor_state> registered_descriptors_;
-
-  // Helper class to do post-perform_io cleanup.
-  struct perform_io_cleanup_on_block_exit;
-  friend struct perform_io_cleanup_on_block_exit;
-};
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#include "asio/detail/impl/epoll_reactor.hpp"
-#if defined(ASIO_HEADER_ONLY)
-# include "asio/detail/impl/epoll_reactor.ipp"
-#endif // defined(ASIO_HEADER_ONLY)
-
-#endif // defined(ASIO_HAS_EPOLL)
-
-#endif // ASIO_DETAIL_EPOLL_REACTOR_HPP
diff --git a/lib/asio/detail/event.hpp b/lib/asio/detail/event.hpp
deleted file mode 100644
index da8fa77..0000000
--- a/lib/asio/detail/event.hpp
+++ /dev/null
@@ -1,48 +0,0 @@
-//
-// detail/event.hpp
-// ~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_EVENT_HPP
-#define ASIO_DETAIL_EVENT_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-
-#if !defined(ASIO_HAS_THREADS)
-# include "asio/detail/null_event.hpp"
-#elif defined(ASIO_WINDOWS)
-# include "asio/detail/win_event.hpp"
-#elif defined(ASIO_HAS_PTHREADS)
-# include "asio/detail/posix_event.hpp"
-#elif defined(ASIO_HAS_STD_MUTEX_AND_CONDVAR)
-# include "asio/detail/std_event.hpp"
-#else
-# error Only Windows, POSIX and std::condition_variable are supported!
-#endif
-
-namespace asio {
-namespace detail {
-
-#if !defined(ASIO_HAS_THREADS)
-typedef null_event event;
-#elif defined(ASIO_WINDOWS)
-typedef win_event event;
-#elif defined(ASIO_HAS_PTHREADS)
-typedef posix_event event;
-#elif defined(ASIO_HAS_STD_MUTEX_AND_CONDVAR)
-typedef std_event event;
-#endif
-
-} // namespace detail
-} // namespace asio
-
-#endif // ASIO_DETAIL_EVENT_HPP
diff --git a/lib/asio/detail/eventfd_select_interrupter.hpp b/lib/asio/detail/eventfd_select_interrupter.hpp
deleted file mode 100644
index f6e594b..0000000
--- a/lib/asio/detail/eventfd_select_interrupter.hpp
+++ /dev/null
@@ -1,83 +0,0 @@
-//
-// detail/eventfd_select_interrupter.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-// Copyright (c) 2008 Roelof Naude (roelof.naude at gmail dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_EVENTFD_SELECT_INTERRUPTER_HPP
-#define ASIO_DETAIL_EVENTFD_SELECT_INTERRUPTER_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-
-#if defined(ASIO_HAS_EVENTFD)
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-class eventfd_select_interrupter
-{
-public:
-  // Constructor.
-  ASIO_DECL eventfd_select_interrupter();
-
-  // Destructor.
-  ASIO_DECL ~eventfd_select_interrupter();
-
-  // Recreate the interrupter's descriptors. Used after a fork.
-  ASIO_DECL void recreate();
-
-  // Interrupt the select call.
-  ASIO_DECL void interrupt();
-
-  // Reset the select interrupt. Returns true if the call was interrupted.
-  ASIO_DECL bool reset();
-
-  // Get the read descriptor to be passed to select.
-  int read_descriptor() const
-  {
-    return read_descriptor_;
-  }
-
-private:
-  // Open the descriptors. Throws on error.
-  ASIO_DECL void open_descriptors();
-
-  // Close the descriptors.
-  ASIO_DECL void close_descriptors();
-
-  // The read end of a connection used to interrupt the select call. This file
-  // descriptor is passed to select such that when it is time to stop, a single
-  // 64bit value will be written on the other end of the connection and this
-  // descriptor will become readable.
-  int read_descriptor_;
-
-  // The write end of a connection used to interrupt the select call. A single
-  // 64bit non-zero value may be written to this to wake up the select which is
-  // waiting for the other end to become readable. This descriptor will only
-  // differ from the read descriptor when a pipe is used.
-  int write_descriptor_;
-};
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#if defined(ASIO_HEADER_ONLY)
-# include "asio/detail/impl/eventfd_select_interrupter.ipp"
-#endif // defined(ASIO_HEADER_ONLY)
-
-#endif // defined(ASIO_HAS_EVENTFD)
-
-#endif // ASIO_DETAIL_EVENTFD_SELECT_INTERRUPTER_HPP
diff --git a/lib/asio/detail/executor_op.hpp b/lib/asio/detail/executor_op.hpp
deleted file mode 100644
index 2d5c7e8..0000000
--- a/lib/asio/detail/executor_op.hpp
+++ /dev/null
@@ -1,84 +0,0 @@
-//
-// detail/executor_op.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_EXECUTOR_OP_HPP
-#define ASIO_DETAIL_EXECUTOR_OP_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-#include "asio/detail/fenced_block.hpp"
-#include "asio/detail/handler_alloc_helpers.hpp"
-#include "asio/detail/handler_invoke_helpers.hpp"
-#include "asio/detail/scheduler_operation.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-template <typename Handler, typename Alloc,
-    typename Operation = scheduler_operation>
-class executor_op : public Operation
-{
-public:
-  ASIO_DEFINE_HANDLER_ALLOCATOR_PTR(executor_op);
-
-  template <typename H>
-  executor_op(ASIO_MOVE_ARG(H) h, const Alloc& allocator)
-    : Operation(&executor_op::do_complete),
-      handler_(ASIO_MOVE_CAST(H)(h)),
-      allocator_(allocator)
-  {
-  }
-
-  static void do_complete(void* owner, Operation* base,
-      const asio::error_code& /*ec*/,
-      std::size_t /*bytes_transferred*/)
-  {
-    // Take ownership of the handler object.
-    executor_op* o(static_cast<executor_op*>(base));
-    Alloc allocator(o->allocator_);
-    ptr p = { detail::addressof(allocator), o, o };
-
-    ASIO_HANDLER_COMPLETION((*o));
-
-    // Make a copy of the handler so that the memory can be deallocated before
-    // the upcall is made. Even if we're not about to make an upcall, a
-    // sub-object of the handler may be the true owner of the memory associated
-    // with the handler. Consequently, a local copy of the handler is required
-    // to ensure that any owning sub-object remains valid until after we have
-    // deallocated the memory here.
-    Handler handler(ASIO_MOVE_CAST(Handler)(o->handler_));
-    p.reset();
-
-    // Make the upcall if required.
-    if (owner)
-    {
-      fenced_block b(fenced_block::half);
-      ASIO_HANDLER_INVOCATION_BEGIN(());
-      asio_handler_invoke_helpers::invoke(handler, handler);
-      ASIO_HANDLER_INVOCATION_END;
-    }
-  }
-
-private:
-  Handler handler_;
-  Alloc allocator_;
-};
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // ASIO_DETAIL_EXECUTOR_OP_HPP
diff --git a/lib/asio/detail/fd_set_adapter.hpp b/lib/asio/detail/fd_set_adapter.hpp
deleted file mode 100644
index fd373da..0000000
--- a/lib/asio/detail/fd_set_adapter.hpp
+++ /dev/null
@@ -1,39 +0,0 @@
-//
-// detail/fd_set_adapter.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_FD_SET_ADAPTER_HPP
-#define ASIO_DETAIL_FD_SET_ADAPTER_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-
-#if !defined(ASIO_WINDOWS_RUNTIME)
-
-#include "asio/detail/posix_fd_set_adapter.hpp"
-#include "asio/detail/win_fd_set_adapter.hpp"
-
-namespace asio {
-namespace detail {
-
-#if defined(ASIO_WINDOWS) || defined(__CYGWIN__)
-typedef win_fd_set_adapter fd_set_adapter;
-#else
-typedef posix_fd_set_adapter fd_set_adapter;
-#endif
-
-} // namespace detail
-} // namespace asio
-
-#endif // !defined(ASIO_WINDOWS_RUNTIME)
-
-#endif // ASIO_DETAIL_FD_SET_ADAPTER_HPP
diff --git a/lib/asio/detail/fenced_block.hpp b/lib/asio/detail/fenced_block.hpp
deleted file mode 100644
index dc34bd9..0000000
--- a/lib/asio/detail/fenced_block.hpp
+++ /dev/null
@@ -1,80 +0,0 @@
-//
-// detail/fenced_block.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_FENCED_BLOCK_HPP
-#define ASIO_DETAIL_FENCED_BLOCK_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-
-#if !defined(ASIO_HAS_THREADS) \
-  || defined(ASIO_DISABLE_FENCED_BLOCK)
-# include "asio/detail/null_fenced_block.hpp"
-#elif defined(ASIO_HAS_STD_ATOMIC)
-# include "asio/detail/std_fenced_block.hpp"
-#elif defined(__MACH__) && defined(__APPLE__)
-# include "asio/detail/macos_fenced_block.hpp"
-#elif defined(__sun)
-# include "asio/detail/solaris_fenced_block.hpp"
-#elif defined(__GNUC__) && defined(__arm__) \
-  && !defined(__GCC_HAVE_SYNC_COMPARE_AND_SWAP_4)
-# include "asio/detail/gcc_arm_fenced_block.hpp"
-#elif defined(__GNUC__) && (defined(__hppa) || defined(__hppa__))
-# include "asio/detail/gcc_hppa_fenced_block.hpp"
-#elif defined(__GNUC__) && (defined(__i386__) || defined(__x86_64__))
-# include "asio/detail/gcc_x86_fenced_block.hpp"
-#elif defined(__GNUC__) \
-  && ((__GNUC__ == 4 && __GNUC_MINOR__ >= 1) || (__GNUC__ > 4)) \
-  && !defined(__INTEL_COMPILER) && !defined(__ICL) \
-  && !defined(__ICC) && !defined(__ECC) && !defined(__PATHSCALE__)
-# include "asio/detail/gcc_sync_fenced_block.hpp"
-#elif defined(ASIO_WINDOWS) && !defined(UNDER_CE)
-# include "asio/detail/win_fenced_block.hpp"
-#else
-# include "asio/detail/null_fenced_block.hpp"
-#endif
-
-namespace asio {
-namespace detail {
-
-#if !defined(ASIO_HAS_THREADS) \
-  || defined(ASIO_DISABLE_FENCED_BLOCK)
-typedef null_fenced_block fenced_block;
-#elif defined(ASIO_HAS_STD_ATOMIC)
-typedef std_fenced_block fenced_block;
-#elif defined(__MACH__) && defined(__APPLE__)
-typedef macos_fenced_block fenced_block;
-#elif defined(__sun)
-typedef solaris_fenced_block fenced_block;
-#elif defined(__GNUC__) && defined(__arm__) \
-  && !defined(__GCC_HAVE_SYNC_COMPARE_AND_SWAP_4)
-typedef gcc_arm_fenced_block fenced_block;
-#elif defined(__GNUC__) && (defined(__hppa) || defined(__hppa__))
-typedef gcc_hppa_fenced_block fenced_block;
-#elif defined(__GNUC__) && (defined(__i386__) || defined(__x86_64__))
-typedef gcc_x86_fenced_block fenced_block;
-#elif defined(__GNUC__) \
-  && ((__GNUC__ == 4 && __GNUC_MINOR__ >= 1) || (__GNUC__ > 4)) \
-  && !defined(__INTEL_COMPILER) && !defined(__ICL) \
-  && !defined(__ICC) && !defined(__ECC) && !defined(__PATHSCALE__)
-typedef gcc_sync_fenced_block fenced_block;
-#elif defined(ASIO_WINDOWS) && !defined(UNDER_CE)
-typedef win_fenced_block fenced_block;
-#else
-typedef null_fenced_block fenced_block;
-#endif
-
-} // namespace detail
-} // namespace asio
-
-#endif // ASIO_DETAIL_FENCED_BLOCK_HPP
diff --git a/lib/asio/detail/functional.hpp b/lib/asio/detail/functional.hpp
deleted file mode 100644
index a37e9e6..0000000
--- a/lib/asio/detail/functional.hpp
+++ /dev/null
@@ -1,38 +0,0 @@
-//
-// detail/functional.hpp
-// ~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_FUNCTIONAL_HPP
-#define ASIO_DETAIL_FUNCTIONAL_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-
-#include <functional>
-
-#if !defined(ASIO_HAS_STD_FUNCTION)
-# include <boost/function.hpp>
-#endif // !defined(ASIO_HAS_STD_FUNCTION)
-
-namespace asio {
-namespace detail {
-
-#if defined(ASIO_HAS_STD_FUNCTION)
-using std::function;
-#else // defined(ASIO_HAS_STD_FUNCTION)
-using boost::function;
-#endif // defined(ASIO_HAS_STD_FUNCTION)
-
-} // namespace detail
-} // namespace asio
-
-#endif // ASIO_DETAIL_FUNCTIONAL_HPP
diff --git a/lib/asio/detail/gcc_arm_fenced_block.hpp b/lib/asio/detail/gcc_arm_fenced_block.hpp
deleted file mode 100644
index 7919a55..0000000
--- a/lib/asio/detail/gcc_arm_fenced_block.hpp
+++ /dev/null
@@ -1,91 +0,0 @@
-//
-// detail/gcc_arm_fenced_block.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_GCC_ARM_FENCED_BLOCK_HPP
-#define ASIO_DETAIL_GCC_ARM_FENCED_BLOCK_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-
-#if defined(__GNUC__) && defined(__arm__)
-
-#include "asio/detail/noncopyable.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-class gcc_arm_fenced_block
-  : private noncopyable
-{
-public:
-  enum half_t { half };
-  enum full_t { full };
-
-  // Constructor for a half fenced block.
-  explicit gcc_arm_fenced_block(half_t)
-  {
-  }
-
-  // Constructor for a full fenced block.
-  explicit gcc_arm_fenced_block(full_t)
-  {
-    barrier();
-  }
-
-  // Destructor.
-  ~gcc_arm_fenced_block()
-  {
-    barrier();
-  }
-
-private:
-  static void barrier()
-  {
-#if defined(__ARM_ARCH_4__) \
-    || defined(__ARM_ARCH_4T__) \
-    || defined(__ARM_ARCH_5__) \
-    || defined(__ARM_ARCH_5E__) \
-    || defined(__ARM_ARCH_5T__) \
-    || defined(__ARM_ARCH_5TE__) \
-    || defined(__ARM_ARCH_5TEJ__) \
-    || defined(__ARM_ARCH_6__) \
-    || defined(__ARM_ARCH_6J__) \
-    || defined(__ARM_ARCH_6K__) \
-    || defined(__ARM_ARCH_6Z__) \
-    || defined(__ARM_ARCH_6ZK__) \
-    || defined(__ARM_ARCH_6T2__)
-# if defined(__thumb__)
-    // This is just a placeholder and almost certainly not sufficient.
-    __asm__ __volatile__ ("" : : : "memory");
-# else // defined(__thumb__)
-    int a = 0, b = 0;
-    __asm__ __volatile__ ("swp %0, %1, [%2]"
-        : "=&r"(a) : "r"(1), "r"(&b) : "memory", "cc");
-# endif // defined(__thumb__)
-#else
-    // ARMv7 and later.
-    __asm__ __volatile__ ("dmb" : : : "memory");
-#endif
-  }
-};
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // defined(__GNUC__) && defined(__arm__)
-
-#endif // ASIO_DETAIL_GCC_ARM_FENCED_BLOCK_HPP
diff --git a/lib/asio/detail/gcc_hppa_fenced_block.hpp b/lib/asio/detail/gcc_hppa_fenced_block.hpp
deleted file mode 100644
index d3957ce..0000000
--- a/lib/asio/detail/gcc_hppa_fenced_block.hpp
+++ /dev/null
@@ -1,68 +0,0 @@
-//
-// detail/gcc_hppa_fenced_block.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_GCC_HPPA_FENCED_BLOCK_HPP
-#define ASIO_DETAIL_GCC_HPPA_FENCED_BLOCK_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-
-#if defined(__GNUC__) && (defined(__hppa) || defined(__hppa__))
-
-#include "asio/detail/noncopyable.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-class gcc_hppa_fenced_block
-  : private noncopyable
-{
-public:
-  enum half_t { half };
-  enum full_t { full };
-
-  // Constructor for a half fenced block.
-  explicit gcc_hppa_fenced_block(half_t)
-  {
-  }
-
-  // Constructor for a full fenced block.
-  explicit gcc_hppa_fenced_block(full_t)
-  {
-    barrier();
-  }
-
-  // Destructor.
-  ~gcc_hppa_fenced_block()
-  {
-    barrier();
-  }
-
-private:
-  static void barrier()
-  {
-    // This is just a placeholder and almost certainly not sufficient.
-    __asm__ __volatile__ ("" : : : "memory");
-  }
-};
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // defined(__GNUC__) && (defined(__hppa) || defined(__hppa__))
-
-#endif // ASIO_DETAIL_GCC_HPPA_FENCED_BLOCK_HPP
diff --git a/lib/asio/detail/gcc_sync_fenced_block.hpp b/lib/asio/detail/gcc_sync_fenced_block.hpp
deleted file mode 100644
index 90d176f..0000000
--- a/lib/asio/detail/gcc_sync_fenced_block.hpp
+++ /dev/null
@@ -1,65 +0,0 @@
-//
-// detail/gcc_sync_fenced_block.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_GCC_SYNC_FENCED_BLOCK_HPP
-#define ASIO_DETAIL_GCC_SYNC_FENCED_BLOCK_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-
-#if defined(__GNUC__) \
-  && ((__GNUC__ == 4 && __GNUC_MINOR__ >= 1) || (__GNUC__ > 4)) \
-  && !defined(__INTEL_COMPILER) && !defined(__ICL) \
-  && !defined(__ICC) && !defined(__ECC) && !defined(__PATHSCALE__)
-
-#include "asio/detail/noncopyable.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-class gcc_sync_fenced_block
-  : private noncopyable
-{
-public:
-  enum half_or_full_t { half, full };
-
-  // Constructor.
-  explicit gcc_sync_fenced_block(half_or_full_t)
-    : value_(0)
-  {
-    __sync_lock_test_and_set(&value_, 1);
-  }
-
-  // Destructor.
-  ~gcc_sync_fenced_block()
-  {
-    __sync_lock_release(&value_);
-  }
-
-private:
-  int value_;
-};
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // defined(__GNUC__)
-       // && ((__GNUC__ == 4 && __GNUC_MINOR__ >= 1) || (__GNUC__ > 4))
-       // && !defined(__INTEL_COMPILER) && !defined(__ICL)
-       // && !defined(__ICC) && !defined(__ECC) && !defined(__PATHSCALE__)
-
-#endif // ASIO_DETAIL_GCC_SYNC_FENCED_BLOCK_HPP
diff --git a/lib/asio/detail/gcc_x86_fenced_block.hpp b/lib/asio/detail/gcc_x86_fenced_block.hpp
deleted file mode 100644
index 1366def..0000000
--- a/lib/asio/detail/gcc_x86_fenced_block.hpp
+++ /dev/null
@@ -1,99 +0,0 @@
-//
-// detail/gcc_x86_fenced_block.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_GCC_X86_FENCED_BLOCK_HPP
-#define ASIO_DETAIL_GCC_X86_FENCED_BLOCK_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-
-#if defined(__GNUC__) && (defined(__i386__) || defined(__x86_64__))
-
-#include "asio/detail/noncopyable.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-class gcc_x86_fenced_block
-  : private noncopyable
-{
-public:
-  enum half_t { half };
-  enum full_t { full };
-
-  // Constructor for a half fenced block.
-  explicit gcc_x86_fenced_block(half_t)
-  {
-  }
-
-  // Constructor for a full fenced block.
-  explicit gcc_x86_fenced_block(full_t)
-  {
-    lbarrier();
-  }
-
-  // Destructor.
-  ~gcc_x86_fenced_block()
-  {
-    sbarrier();
-  }
-
-private:
-  static int barrier()
-  {
-    int r = 0, m = 1;
-    __asm__ __volatile__ (
-        "xchgl %0, %1" :
-        "=r"(r), "=m"(m) :
-        "0"(1), "m"(m) :
-        "memory", "cc");
-    return r;
-  }
-
-  static void lbarrier()
-  {
-#if defined(__SSE2__)
-# if (__GNUC__ >= 4) && !defined(__INTEL_COMPILER) && !defined(__ICL)
-    __builtin_ia32_lfence();
-# else // (__GNUC__ >= 4) && !defined(__INTEL_COMPILER) && !defined(__ICL)
-    __asm__ __volatile__ ("lfence" ::: "memory");
-# endif // (__GNUC__ >= 4) && !defined(__INTEL_COMPILER) && !defined(__ICL)
-#else // defined(__SSE2__)
-    barrier();
-#endif // defined(__SSE2__)
-  }
-
-  static void sbarrier()
-  {
-#if defined(__SSE2__)
-# if (__GNUC__ >= 4) && !defined(__INTEL_COMPILER) && !defined(__ICL)
-    __builtin_ia32_sfence();
-# else // (__GNUC__ >= 4) && !defined(__INTEL_COMPILER) && !defined(__ICL)
-    __asm__ __volatile__ ("sfence" ::: "memory");
-# endif // (__GNUC__ >= 4) && !defined(__INTEL_COMPILER) && !defined(__ICL)
-#else // defined(__SSE2__)
-    barrier();
-#endif // defined(__SSE2__)
-  }
-};
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // defined(__GNUC__) && (defined(__i386__) || defined(__x86_64__))
-
-#endif // ASIO_DETAIL_GCC_X86_FENCED_BLOCK_HPP
diff --git a/lib/asio/detail/global.hpp b/lib/asio/detail/global.hpp
deleted file mode 100644
index 085ac64..0000000
--- a/lib/asio/detail/global.hpp
+++ /dev/null
@@ -1,52 +0,0 @@
-//
-// detail/global.hpp
-// ~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_GLOBAL_HPP
-#define ASIO_DETAIL_GLOBAL_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-
-#if !defined(ASIO_HAS_THREADS)
-# include "asio/detail/null_global.hpp"
-#elif defined(ASIO_WINDOWS)
-# include "asio/detail/win_global.hpp"
-#elif defined(ASIO_HAS_PTHREADS)
-# include "asio/detail/posix_global.hpp"
-#elif defined(ASIO_HAS_STD_CALL_ONCE)
-# include "asio/detail/std_global.hpp"
-#else
-# error Only Windows, POSIX and std::call_once are supported!
-#endif
-
-namespace asio {
-namespace detail {
-
-template <typename T>
-inline T& global()
-{
-#if !defined(ASIO_HAS_THREADS)
-  return null_global<T>();
-#elif defined(ASIO_WINDOWS)
-  return win_global<T>();
-#elif defined(ASIO_HAS_PTHREADS)
-  return posix_global<T>();
-#elif defined(ASIO_HAS_STD_CALL_ONCE)
-  return std_global<T>();
-#endif
-}
-
-} // namespace detail
-} // namespace asio
-
-#endif // ASIO_DETAIL_GLOBAL_HPP
diff --git a/lib/asio/detail/handler_alloc_helpers.hpp b/lib/asio/detail/handler_alloc_helpers.hpp
deleted file mode 100644
index afefb4d..0000000
--- a/lib/asio/detail/handler_alloc_helpers.hpp
+++ /dev/null
@@ -1,235 +0,0 @@
-//
-// detail/handler_alloc_helpers.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_HANDLER_ALLOC_HELPERS_HPP
-#define ASIO_DETAIL_HANDLER_ALLOC_HELPERS_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-#include "asio/detail/memory.hpp"
-#include "asio/detail/noncopyable.hpp"
-#include "asio/detail/recycling_allocator.hpp"
-#include "asio/associated_allocator.hpp"
-#include "asio/handler_alloc_hook.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-// Calls to asio_handler_allocate and asio_handler_deallocate must be made from
-// a namespace that does not contain any overloads of these functions. The
-// asio_handler_alloc_helpers namespace is defined here for that purpose.
-namespace asio_handler_alloc_helpers {
-
-template <typename Handler>
-inline void* allocate(std::size_t s, Handler& h)
-{
-#if !defined(ASIO_HAS_HANDLER_HOOKS)
-  return ::operator new(s);
-#else
-  using asio::asio_handler_allocate;
-  return asio_handler_allocate(s, asio::detail::addressof(h));
-#endif
-}
-
-template <typename Handler>
-inline void deallocate(void* p, std::size_t s, Handler& h)
-{
-#if !defined(ASIO_HAS_HANDLER_HOOKS)
-  ::operator delete(p);
-#else
-  using asio::asio_handler_deallocate;
-  asio_handler_deallocate(p, s, asio::detail::addressof(h));
-#endif
-}
-
-} // namespace asio_handler_alloc_helpers
-
-namespace asio {
-namespace detail {
-
-template <typename Handler, typename T>
-class hook_allocator
-{
-public:
-  typedef T value_type;
-
-  template <typename U>
-  struct rebind
-  {
-    typedef hook_allocator<Handler, U> other;
-  };
-
-  explicit hook_allocator(Handler& h)
-    : handler_(h)
-  {
-  }
-
-  template <typename U>
-  hook_allocator(const hook_allocator<Handler, U>& a)
-    : handler_(a.handler_)
-  {
-  }
-
-  T* allocate(std::size_t n)
-  {
-    return static_cast<T*>(
-        asio_handler_alloc_helpers::allocate(sizeof(T) * n, handler_));
-  }
-
-  void deallocate(T* p, std::size_t n)
-  {
-    asio_handler_alloc_helpers::deallocate(p, sizeof(T) * n, handler_);
-  }
-
-//private:
-  Handler& handler_;
-};
-
-template <typename Handler>
-class hook_allocator<Handler, void>
-{
-public:
-  typedef void value_type;
-
-  template <typename U>
-  struct rebind
-  {
-    typedef hook_allocator<Handler, U> other;
-  };
-
-  explicit hook_allocator(Handler& h)
-    : handler_(h)
-  {
-  }
-
-  template <typename U>
-  hook_allocator(const hook_allocator<Handler, U>& a)
-    : handler_(a.handler_)
-  {
-  }
-
-//private:
-  Handler& handler_;
-};
-
-template <typename Handler, typename Allocator>
-struct get_hook_allocator
-{
-  typedef Allocator type;
-
-  static type get(Handler&, const Allocator& a)
-  {
-    return a;
-  }
-};
-
-template <typename Handler, typename T>
-struct get_hook_allocator<Handler, std::allocator<T> >
-{
-  typedef hook_allocator<Handler, T> type;
-
-  static type get(Handler& handler, const std::allocator<T>&)
-  {
-    return type(handler);
-  }
-};
-
-} // namespace detail
-} // namespace asio
-
-#define ASIO_DEFINE_HANDLER_PTR(op) \
-  struct ptr \
-  { \
-    Handler* h; \
-    op* v; \
-    op* p; \
-    ~ptr() \
-    { \
-      reset(); \
-    } \
-    static op* allocate(Handler& handler) \
-    { \
-      typedef typename ::asio::associated_allocator< \
-        Handler>::type associated_allocator_type; \
-      typedef typename ::asio::detail::get_hook_allocator< \
-        Handler, associated_allocator_type>::type hook_allocator_type; \
-      ASIO_REBIND_ALLOC(hook_allocator_type, op) a( \
-            ::asio::detail::get_hook_allocator< \
-              Handler, associated_allocator_type>::get( \
-                handler, ::asio::get_associated_allocator(handler))); \
-      return a.allocate(1); \
-    } \
-    void reset() \
-    { \
-      if (p) \
-      { \
-        p->~op(); \
-        p = 0; \
-      } \
-      if (v) \
-      { \
-        typedef typename ::asio::associated_allocator< \
-          Handler>::type associated_allocator_type; \
-        typedef typename ::asio::detail::get_hook_allocator< \
-          Handler, associated_allocator_type>::type hook_allocator_type; \
-        ASIO_REBIND_ALLOC(hook_allocator_type, op) a( \
-              ::asio::detail::get_hook_allocator< \
-                Handler, associated_allocator_type>::get( \
-                  *h, ::asio::get_associated_allocator(*h))); \
-        a.deallocate(static_cast<op*>(v), 1); \
-        v = 0; \
-      } \
-    } \
-  } \
-  /**/
-
-#define ASIO_DEFINE_HANDLER_ALLOCATOR_PTR(op) \
-  struct ptr \
-  { \
-    const Alloc* a; \
-    void* v; \
-    op* p; \
-    ~ptr() \
-    { \
-      reset(); \
-    } \
-    static op* allocate(const Alloc& a) \
-    { \
-      typedef typename ::asio::detail::get_recycling_allocator< \
-        Alloc>::type recycling_allocator_type; \
-      ASIO_REBIND_ALLOC(recycling_allocator_type, op) a1( \
-            ::asio::detail::get_recycling_allocator<Alloc>::get(a)); \
-      return a1.allocate(1); \
-    } \
-    void reset() \
-    { \
-      if (p) \
-      { \
-        p->~op(); \
-        p = 0; \
-      } \
-      if (v) \
-      { \
-        typedef typename ::asio::detail::get_recycling_allocator< \
-          Alloc>::type recycling_allocator_type; \
-        ASIO_REBIND_ALLOC(recycling_allocator_type, op) a1( \
-              ::asio::detail::get_recycling_allocator<Alloc>::get(*a)); \
-        a1.deallocate(static_cast<op*>(v), 1); \
-        v = 0; \
-      } \
-    } \
-  } \
-  /**/
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // ASIO_DETAIL_HANDLER_ALLOC_HELPERS_HPP
diff --git a/lib/asio/detail/handler_cont_helpers.hpp b/lib/asio/detail/handler_cont_helpers.hpp
deleted file mode 100644
index 110ba94..0000000
--- a/lib/asio/detail/handler_cont_helpers.hpp
+++ /dev/null
@@ -1,45 +0,0 @@
-//
-// detail/handler_cont_helpers.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_HANDLER_CONT_HELPERS_HPP
-#define ASIO_DETAIL_HANDLER_CONT_HELPERS_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-#include "asio/detail/memory.hpp"
-#include "asio/handler_continuation_hook.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-// Calls to asio_handler_is_continuation must be made from a namespace that
-// does not contain overloads of this function. This namespace is defined here
-// for that purpose.
-namespace asio_handler_cont_helpers {
-
-template <typename Context>
-inline bool is_continuation(Context& context)
-{
-#if !defined(ASIO_HAS_HANDLER_HOOKS)
-  return false;
-#else
-  using asio::asio_handler_is_continuation;
-  return asio_handler_is_continuation(
-      asio::detail::addressof(context));
-#endif
-}
-
-} // namespace asio_handler_cont_helpers
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // ASIO_DETAIL_HANDLER_CONT_HELPERS_HPP
diff --git a/lib/asio/detail/handler_invoke_helpers.hpp b/lib/asio/detail/handler_invoke_helpers.hpp
deleted file mode 100644
index 4c65c4c..0000000
--- a/lib/asio/detail/handler_invoke_helpers.hpp
+++ /dev/null
@@ -1,57 +0,0 @@
-//
-// detail/handler_invoke_helpers.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_HANDLER_INVOKE_HELPERS_HPP
-#define ASIO_DETAIL_HANDLER_INVOKE_HELPERS_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-#include "asio/detail/memory.hpp"
-#include "asio/handler_invoke_hook.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-// Calls to asio_handler_invoke must be made from a namespace that does not
-// contain overloads of this function. The asio_handler_invoke_helpers
-// namespace is defined here for that purpose.
-namespace asio_handler_invoke_helpers {
-
-template <typename Function, typename Context>
-inline void invoke(Function& function, Context& context)
-{
-#if !defined(ASIO_HAS_HANDLER_HOOKS)
-  Function tmp(function);
-  tmp();
-#else
-  using asio::asio_handler_invoke;
-  asio_handler_invoke(function, asio::detail::addressof(context));
-#endif
-}
-
-template <typename Function, typename Context>
-inline void invoke(const Function& function, Context& context)
-{
-#if !defined(ASIO_HAS_HANDLER_HOOKS)
-  Function tmp(function);
-  tmp();
-#else
-  using asio::asio_handler_invoke;
-  asio_handler_invoke(function, asio::detail::addressof(context));
-#endif
-}
-
-} // namespace asio_handler_invoke_helpers
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // ASIO_DETAIL_HANDLER_INVOKE_HELPERS_HPP
diff --git a/lib/asio/detail/handler_tracking.hpp b/lib/asio/detail/handler_tracking.hpp
deleted file mode 100644
index 83f820e..0000000
--- a/lib/asio/detail/handler_tracking.hpp
+++ /dev/null
@@ -1,238 +0,0 @@
-//
-// detail/handler_tracking.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_HANDLER_TRACKING_HPP
-#define ASIO_DETAIL_HANDLER_TRACKING_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-
-namespace asio {
-
-class execution_context;
-
-} // namespace asio
-
-#if defined(ASIO_CUSTOM_HANDLER_TRACKING)
-# include ASIO_CUSTOM_HANDLER_TRACKING
-#elif defined(ASIO_ENABLE_HANDLER_TRACKING)
-# include "asio/error_code.hpp"
-# include "asio/detail/cstdint.hpp"
-# include "asio/detail/static_mutex.hpp"
-# include "asio/detail/tss_ptr.hpp"
-#endif // defined(ASIO_ENABLE_HANDLER_TRACKING)
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-#if defined(ASIO_CUSTOM_HANDLER_TRACKING)
-
-// The user-specified header must define the following macros:
-// - ASIO_INHERIT_TRACKED_HANDLER
-// - ASIO_ALSO_INHERIT_TRACKED_HANDLER
-// - ASIO_HANDLER_TRACKING_INIT
-// - ASIO_HANDLER_CREATION(args)
-// - ASIO_HANDLER_COMPLETION(args)
-// - ASIO_HANDLER_INVOCATION_BEGIN(args)
-// - ASIO_HANDLER_INVOCATION_END
-// - ASIO_HANDLER_OPERATION(args)
-// - ASIO_HANDLER_REACTOR_REGISTRATION(args)
-// - ASIO_HANDLER_REACTOR_DEREGISTRATION(args)
-// - ASIO_HANDLER_REACTOR_READ_EVENT
-// - ASIO_HANDLER_REACTOR_WRITE_EVENT
-// - ASIO_HANDLER_REACTOR_ERROR_EVENT
-// - ASIO_HANDLER_REACTOR_EVENTS(args)
-// - ASIO_HANDLER_REACTOR_OPERATION(args)
-
-# if !defined(ASIO_ENABLE_HANDLER_TRACKING)
-#  define ASIO_ENABLE_HANDLER_TRACKING 1
-# endif /// !defined(ASIO_ENABLE_HANDLER_TRACKING)
-
-#elif defined(ASIO_ENABLE_HANDLER_TRACKING)
-
-class handler_tracking
-{
-public:
-  class completion;
-
-  // Base class for objects containing tracked handlers.
-  class tracked_handler
-  {
-  private:
-    // Only the handler_tracking class will have access to the id.
-    friend class handler_tracking;
-    friend class completion;
-    uint64_t id_;
-
-  protected:
-    // Constructor initialises with no id.
-    tracked_handler() : id_(0) {}
-
-    // Prevent deletion through this type.
-    ~tracked_handler() {}
-  };
-
-  // Initialise the tracking system.
-  ASIO_DECL static void init();
-
-  // Record the creation of a tracked handler.
-  ASIO_DECL static void creation(
-      execution_context& context, tracked_handler& h,
-      const char* object_type, void* object,
-      uintmax_t native_handle, const char* op_name);
-
-  class completion
-  {
-  public:
-    // Constructor records that handler is to be invoked with no arguments.
-    ASIO_DECL explicit completion(const tracked_handler& h);
-
-    // Destructor records only when an exception is thrown from the handler, or
-    // if the memory is being freed without the handler having been invoked.
-    ASIO_DECL ~completion();
-
-    // Records that handler is to be invoked with no arguments.
-    ASIO_DECL void invocation_begin();
-
-    // Records that handler is to be invoked with one arguments.
-    ASIO_DECL void invocation_begin(const asio::error_code& ec);
-
-    // Constructor records that handler is to be invoked with two arguments.
-    ASIO_DECL void invocation_begin(
-        const asio::error_code& ec, std::size_t bytes_transferred);
-
-    // Constructor records that handler is to be invoked with two arguments.
-    ASIO_DECL void invocation_begin(
-        const asio::error_code& ec, int signal_number);
-
-    // Constructor records that handler is to be invoked with two arguments.
-    ASIO_DECL void invocation_begin(
-        const asio::error_code& ec, const char* arg);
-
-    // Record that handler invocation has ended.
-    ASIO_DECL void invocation_end();
-
-  private:
-    friend class handler_tracking;
-    uint64_t id_;
-    bool invoked_;
-    completion* next_;
-  };
-
-  // Record an operation that is not directly associated with a handler.
-  ASIO_DECL static void operation(execution_context& context,
-      const char* object_type, void* object,
-      uintmax_t native_handle, const char* op_name);
-
-  // Record that a descriptor has been registered with the reactor.
-  ASIO_DECL static void reactor_registration(execution_context& context,
-      uintmax_t native_handle, uintmax_t registration);
-
-  // Record that a descriptor has been deregistered from the reactor.
-  ASIO_DECL static void reactor_deregistration(execution_context& context,
-      uintmax_t native_handle, uintmax_t registration);
-
-  // Record a reactor-based operation that is associated with a handler.
-  ASIO_DECL static void reactor_events(execution_context& context,
-      uintmax_t registration, unsigned events);
-
-  // Record a reactor-based operation that is associated with a handler.
-  ASIO_DECL static void reactor_operation(
-      const tracked_handler& h, const char* op_name,
-      const asio::error_code& ec);
-
-  // Record a reactor-based operation that is associated with a handler.
-  ASIO_DECL static void reactor_operation(
-      const tracked_handler& h, const char* op_name,
-      const asio::error_code& ec, std::size_t bytes_transferred);
-
-  // Write a line of output.
-  ASIO_DECL static void write_line(const char* format, ...);
-
-private:
-  struct tracking_state;
-  ASIO_DECL static tracking_state* get_state();
-};
-
-# define ASIO_INHERIT_TRACKED_HANDLER \
-  : public asio::detail::handler_tracking::tracked_handler
-
-# define ASIO_ALSO_INHERIT_TRACKED_HANDLER \
-  , public asio::detail::handler_tracking::tracked_handler
-
-# define ASIO_HANDLER_TRACKING_INIT \
-  asio::detail::handler_tracking::init()
-
-# define ASIO_HANDLER_CREATION(args) \
-  asio::detail::handler_tracking::creation args
-
-# define ASIO_HANDLER_COMPLETION(args) \
-  asio::detail::handler_tracking::completion tracked_completion args
-
-# define ASIO_HANDLER_INVOCATION_BEGIN(args) \
-  tracked_completion.invocation_begin args
-
-# define ASIO_HANDLER_INVOCATION_END \
-  tracked_completion.invocation_end()
-
-# define ASIO_HANDLER_OPERATION(args) \
-  asio::detail::handler_tracking::operation args
-
-# define ASIO_HANDLER_REACTOR_REGISTRATION(args) \
-  asio::detail::handler_tracking::reactor_registration args
-
-# define ASIO_HANDLER_REACTOR_DEREGISTRATION(args) \
-  asio::detail::handler_tracking::reactor_deregistration args
-
-# define ASIO_HANDLER_REACTOR_READ_EVENT 1
-# define ASIO_HANDLER_REACTOR_WRITE_EVENT 2
-# define ASIO_HANDLER_REACTOR_ERROR_EVENT 4
-
-# define ASIO_HANDLER_REACTOR_EVENTS(args) \
-  asio::detail::handler_tracking::reactor_events args
-
-# define ASIO_HANDLER_REACTOR_OPERATION(args) \
-  asio::detail::handler_tracking::reactor_operation args
-
-#else // defined(ASIO_ENABLE_HANDLER_TRACKING)
-
-# define ASIO_INHERIT_TRACKED_HANDLER
-# define ASIO_ALSO_INHERIT_TRACKED_HANDLER
-# define ASIO_HANDLER_TRACKING_INIT (void)0
-# define ASIO_HANDLER_CREATION(args) (void)0
-# define ASIO_HANDLER_COMPLETION(args) (void)0
-# define ASIO_HANDLER_INVOCATION_BEGIN(args) (void)0
-# define ASIO_HANDLER_INVOCATION_END (void)0
-# define ASIO_HANDLER_OPERATION(args) (void)0
-# define ASIO_HANDLER_REACTOR_REGISTRATION(args) (void)0
-# define ASIO_HANDLER_REACTOR_DEREGISTRATION(args) (void)0
-# define ASIO_HANDLER_REACTOR_READ_EVENT 0
-# define ASIO_HANDLER_REACTOR_WRITE_EVENT 0
-# define ASIO_HANDLER_REACTOR_ERROR_EVENT 0
-# define ASIO_HANDLER_REACTOR_EVENTS(args) (void)0
-# define ASIO_HANDLER_REACTOR_OPERATION(args) (void)0
-
-#endif // defined(ASIO_ENABLE_HANDLER_TRACKING)
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#if defined(ASIO_HEADER_ONLY)
-# include "asio/detail/impl/handler_tracking.ipp"
-#endif // defined(ASIO_HEADER_ONLY)
-
-#endif // ASIO_DETAIL_HANDLER_TRACKING_HPP
diff --git a/lib/asio/detail/handler_type_requirements.hpp b/lib/asio/detail/handler_type_requirements.hpp
deleted file mode 100644
index 9181bc5..0000000
--- a/lib/asio/detail/handler_type_requirements.hpp
+++ /dev/null
@@ -1,556 +0,0 @@
-//
-// detail/handler_type_requirements.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_HANDLER_TYPE_REQUIREMENTS_HPP
-#define ASIO_DETAIL_HANDLER_TYPE_REQUIREMENTS_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-
-// Older versions of gcc have difficulty compiling the sizeof expressions where
-// we test the handler type requirements. We'll disable checking of handler type
-// requirements for those compilers, but otherwise enable it by default.
-#if !defined(ASIO_DISABLE_HANDLER_TYPE_REQUIREMENTS)
-# if !defined(__GNUC__) || (__GNUC__ >= 4)
-#  define ASIO_ENABLE_HANDLER_TYPE_REQUIREMENTS 1
-# endif // !defined(__GNUC__) || (__GNUC__ >= 4)
-#endif // !defined(ASIO_DISABLE_HANDLER_TYPE_REQUIREMENTS)
-
-// With C++0x we can use a combination of enhanced SFINAE and static_assert to
-// generate better template error messages. As this technique is not yet widely
-// portable, we'll only enable it for tested compilers.
-#if !defined(ASIO_DISABLE_HANDLER_TYPE_REQUIREMENTS_ASSERT)
-# if defined(__GNUC__)
-#  if ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 5)) || (__GNUC__ > 4)
-#   if defined(__GXX_EXPERIMENTAL_CXX0X__)
-#    define ASIO_ENABLE_HANDLER_TYPE_REQUIREMENTS_ASSERT 1
-#   endif // defined(__GXX_EXPERIMENTAL_CXX0X__)
-#  endif // ((__GNUC__ == 4) && (__GNUC_MINOR__ >= 5)) || (__GNUC__ > 4)
-# endif // defined(__GNUC__)
-# if defined(ASIO_MSVC)
-#  if (_MSC_VER >= 1600)
-#   define ASIO_ENABLE_HANDLER_TYPE_REQUIREMENTS_ASSERT 1
-#  endif // (_MSC_VER >= 1600)
-# endif // defined(ASIO_MSVC)
-# if defined(__clang__)
-#  if __has_feature(__cxx_static_assert__)
-#   define ASIO_ENABLE_HANDLER_TYPE_REQUIREMENTS_ASSERT 1
-#  endif // __has_feature(cxx_static_assert)
-# endif // defined(__clang__)
-#endif // !defined(ASIO_DISABLE_HANDLER_TYPE_REQUIREMENTS)
-
-#if defined(ASIO_ENABLE_HANDLER_TYPE_REQUIREMENTS)
-# include "asio/async_result.hpp"
-#endif // defined(ASIO_ENABLE_HANDLER_TYPE_REQUIREMENTS)
-
-namespace asio {
-namespace detail {
-
-#if defined(ASIO_ENABLE_HANDLER_TYPE_REQUIREMENTS)
-
-# if defined(ASIO_ENABLE_HANDLER_TYPE_REQUIREMENTS_ASSERT)
-
-template <typename Handler>
-auto zero_arg_copyable_handler_test(Handler h, void*)
-  -> decltype(
-    sizeof(Handler(static_cast<const Handler&>(h))),
-    ((h)()),
-    char(0));
-
-template <typename Handler>
-char (&zero_arg_copyable_handler_test(Handler, ...))[2];
-
-template <typename Handler, typename Arg1>
-auto one_arg_handler_test(Handler h, Arg1* a1)
-  -> decltype(
-    sizeof(Handler(ASIO_MOVE_CAST(Handler)(h))),
-    ((h)(*a1)),
-    char(0));
-
-template <typename Handler>
-char (&one_arg_handler_test(Handler h, ...))[2];
-
-template <typename Handler, typename Arg1, typename Arg2>
-auto two_arg_handler_test(Handler h, Arg1* a1, Arg2* a2)
-  -> decltype(
-    sizeof(Handler(ASIO_MOVE_CAST(Handler)(h))),
-    ((h)(*a1, *a2)),
-    char(0));
-
-template <typename Handler>
-char (&two_arg_handler_test(Handler, ...))[2];
-
-template <typename Handler, typename Arg1, typename Arg2>
-auto two_arg_move_handler_test(Handler h, Arg1* a1, Arg2* a2)
-  -> decltype(
-    sizeof(Handler(ASIO_MOVE_CAST(Handler)(h))),
-    ((h)(*a1, ASIO_MOVE_CAST(Arg2)(*a2))),
-    char(0));
-
-template <typename Handler>
-char (&two_arg_move_handler_test(Handler, ...))[2];
-
-#  define ASIO_HANDLER_TYPE_REQUIREMENTS_ASSERT(expr, msg) \
-     static_assert(expr, msg);
-
-# else // defined(ASIO_ENABLE_HANDLER_TYPE_REQUIREMENTS_ASSERT)
-
-#  define ASIO_HANDLER_TYPE_REQUIREMENTS_ASSERT(expr, msg)
-
-# endif // defined(ASIO_ENABLE_HANDLER_TYPE_REQUIREMENTS_ASSERT)
-
-template <typename T> T& lvref();
-template <typename T> T& lvref(T);
-template <typename T> const T& clvref();
-template <typename T> const T& clvref(T);
-#if defined(ASIO_HAS_MOVE)
-template <typename T> T rvref();
-template <typename T> T rvref(T);
-#else // defined(ASIO_HAS_MOVE)
-template <typename T> const T& rvref();
-template <typename T> const T& rvref(T);
-#endif // defined(ASIO_HAS_MOVE)
-template <typename T> char argbyv(T);
-
-template <int>
-struct handler_type_requirements
-{
-};
-
-#define ASIO_LEGACY_COMPLETION_HANDLER_CHECK( \
-    handler_type, handler) \
-  \
-  typedef ASIO_HANDLER_TYPE(handler_type, \
-      void()) asio_true_handler_type; \
-  \
-  ASIO_HANDLER_TYPE_REQUIREMENTS_ASSERT( \
-      sizeof(asio::detail::zero_arg_copyable_handler_test( \
-          asio::detail::clvref< \
-            asio_true_handler_type>(), 0)) == 1, \
-      "CompletionHandler type requirements not met") \
-  \
-  typedef asio::detail::handler_type_requirements< \
-      sizeof( \
-        asio::detail::argbyv( \
-          asio::detail::clvref< \
-            asio_true_handler_type>())) + \
-      sizeof( \
-        asio::detail::lvref< \
-          asio_true_handler_type>()(), \
-        char(0))> ASIO_UNUSED_TYPEDEF
-
-#define ASIO_READ_HANDLER_CHECK( \
-    handler_type, handler) \
-  \
-  typedef ASIO_HANDLER_TYPE(handler_type, \
-      void(asio::error_code, std::size_t)) \
-    asio_true_handler_type; \
-  \
-  ASIO_HANDLER_TYPE_REQUIREMENTS_ASSERT( \
-      sizeof(asio::detail::two_arg_handler_test( \
-          asio::detail::rvref< \
-            asio_true_handler_type>(), \
-          static_cast<const asio::error_code*>(0), \
-          static_cast<const std::size_t*>(0))) == 1, \
-      "ReadHandler type requirements not met") \
-  \
-  typedef asio::detail::handler_type_requirements< \
-      sizeof( \
-        asio::detail::argbyv( \
-          asio::detail::rvref< \
-            asio_true_handler_type>())) + \
-      sizeof( \
-        asio::detail::lvref< \
-          asio_true_handler_type>()( \
-            asio::detail::lvref<const asio::error_code>(), \
-            asio::detail::lvref<const std::size_t>()), \
-        char(0))> ASIO_UNUSED_TYPEDEF
-
-#define ASIO_WRITE_HANDLER_CHECK( \
-    handler_type, handler) \
-  \
-  typedef ASIO_HANDLER_TYPE(handler_type, \
-      void(asio::error_code, std::size_t)) \
-    asio_true_handler_type; \
-  \
-  ASIO_HANDLER_TYPE_REQUIREMENTS_ASSERT( \
-      sizeof(asio::detail::two_arg_handler_test( \
-          asio::detail::rvref< \
-            asio_true_handler_type>(), \
-          static_cast<const asio::error_code*>(0), \
-          static_cast<const std::size_t*>(0))) == 1, \
-      "WriteHandler type requirements not met") \
-  \
-  typedef asio::detail::handler_type_requirements< \
-      sizeof( \
-        asio::detail::argbyv( \
-          asio::detail::rvref< \
-            asio_true_handler_type>())) + \
-      sizeof( \
-        asio::detail::lvref< \
-          asio_true_handler_type>()( \
-            asio::detail::lvref<const asio::error_code>(), \
-            asio::detail::lvref<const std::size_t>()), \
-        char(0))> ASIO_UNUSED_TYPEDEF
-
-#define ASIO_ACCEPT_HANDLER_CHECK( \
-    handler_type, handler) \
-  \
-  typedef ASIO_HANDLER_TYPE(handler_type, \
-      void(asio::error_code)) \
-    asio_true_handler_type; \
-  \
-  ASIO_HANDLER_TYPE_REQUIREMENTS_ASSERT( \
-      sizeof(asio::detail::one_arg_handler_test( \
-          asio::detail::rvref< \
-            asio_true_handler_type>(), \
-          static_cast<const asio::error_code*>(0))) == 1, \
-      "AcceptHandler type requirements not met") \
-  \
-  typedef asio::detail::handler_type_requirements< \
-      sizeof( \
-        asio::detail::argbyv( \
-          asio::detail::rvref< \
-            asio_true_handler_type>())) + \
-      sizeof( \
-        asio::detail::lvref< \
-          asio_true_handler_type>()( \
-            asio::detail::lvref<const asio::error_code>()), \
-        char(0))> ASIO_UNUSED_TYPEDEF
-
-#define ASIO_MOVE_ACCEPT_HANDLER_CHECK( \
-    handler_type, handler, socket_type) \
-  \
-  typedef ASIO_HANDLER_TYPE(handler_type, \
-      void(asio::error_code, socket_type)) \
-    asio_true_handler_type; \
-  \
-  ASIO_HANDLER_TYPE_REQUIREMENTS_ASSERT( \
-      sizeof(asio::detail::two_arg_move_handler_test( \
-          asio::detail::rvref< \
-            asio_true_handler_type>(), \
-          static_cast<const asio::error_code*>(0), \
-          static_cast<socket_type*>(0))) == 1, \
-      "MoveAcceptHandler type requirements not met") \
-  \
-  typedef asio::detail::handler_type_requirements< \
-      sizeof( \
-        asio::detail::argbyv( \
-          asio::detail::rvref< \
-            asio_true_handler_type>())) + \
-      sizeof( \
-        asio::detail::lvref< \
-          asio_true_handler_type>()( \
-            asio::detail::lvref<const asio::error_code>(), \
-            asio::detail::rvref<socket_type>()), \
-        char(0))> ASIO_UNUSED_TYPEDEF
-
-#define ASIO_CONNECT_HANDLER_CHECK( \
-    handler_type, handler) \
-  \
-  typedef ASIO_HANDLER_TYPE(handler_type, \
-      void(asio::error_code)) \
-    asio_true_handler_type; \
-  \
-  ASIO_HANDLER_TYPE_REQUIREMENTS_ASSERT( \
-      sizeof(asio::detail::one_arg_handler_test( \
-          asio::detail::rvref< \
-            asio_true_handler_type>(), \
-          static_cast<const asio::error_code*>(0))) == 1, \
-      "ConnectHandler type requirements not met") \
-  \
-  typedef asio::detail::handler_type_requirements< \
-      sizeof( \
-        asio::detail::argbyv( \
-          asio::detail::rvref< \
-            asio_true_handler_type>())) + \
-      sizeof( \
-        asio::detail::lvref< \
-          asio_true_handler_type>()( \
-            asio::detail::lvref<const asio::error_code>()), \
-        char(0))> ASIO_UNUSED_TYPEDEF
-
-#define ASIO_RANGE_CONNECT_HANDLER_CHECK( \
-    handler_type, handler, endpoint_type) \
-  \
-  typedef ASIO_HANDLER_TYPE(handler_type, \
-      void(asio::error_code, endpoint_type)) \
-    asio_true_handler_type; \
-  \
-  ASIO_HANDLER_TYPE_REQUIREMENTS_ASSERT( \
-      sizeof(asio::detail::two_arg_handler_test( \
-          asio::detail::rvref< \
-            asio_true_handler_type>(), \
-          static_cast<const asio::error_code*>(0), \
-          static_cast<const endpoint_type*>(0))) == 1, \
-      "RangeConnectHandler type requirements not met") \
-  \
-  typedef asio::detail::handler_type_requirements< \
-      sizeof( \
-        asio::detail::argbyv( \
-          asio::detail::rvref< \
-            asio_true_handler_type>())) + \
-      sizeof( \
-        asio::detail::lvref< \
-          asio_true_handler_type>()( \
-            asio::detail::lvref<const asio::error_code>(), \
-            asio::detail::lvref<const endpoint_type>()), \
-        char(0))> ASIO_UNUSED_TYPEDEF
-
-#define ASIO_ITERATOR_CONNECT_HANDLER_CHECK( \
-    handler_type, handler, iter_type) \
-  \
-  typedef ASIO_HANDLER_TYPE(handler_type, \
-      void(asio::error_code, iter_type)) \
-    asio_true_handler_type; \
-  \
-  ASIO_HANDLER_TYPE_REQUIREMENTS_ASSERT( \
-      sizeof(asio::detail::two_arg_handler_test( \
-          asio::detail::rvref< \
-            asio_true_handler_type>(), \
-          static_cast<const asio::error_code*>(0), \
-          static_cast<const iter_type*>(0))) == 1, \
-      "IteratorConnectHandler type requirements not met") \
-  \
-  typedef asio::detail::handler_type_requirements< \
-      sizeof( \
-        asio::detail::argbyv( \
-          asio::detail::rvref< \
-            asio_true_handler_type>())) + \
-      sizeof( \
-        asio::detail::lvref< \
-          asio_true_handler_type>()( \
-            asio::detail::lvref<const asio::error_code>(), \
-            asio::detail::lvref<const iter_type>()), \
-        char(0))> ASIO_UNUSED_TYPEDEF
-
-#define ASIO_RESOLVE_HANDLER_CHECK( \
-    handler_type, handler, range_type) \
-  \
-  typedef ASIO_HANDLER_TYPE(handler_type, \
-      void(asio::error_code, range_type)) \
-    asio_true_handler_type; \
-  \
-  ASIO_HANDLER_TYPE_REQUIREMENTS_ASSERT( \
-      sizeof(asio::detail::two_arg_handler_test( \
-          asio::detail::rvref< \
-            asio_true_handler_type>(), \
-          static_cast<const asio::error_code*>(0), \
-          static_cast<const range_type*>(0))) == 1, \
-      "ResolveHandler type requirements not met") \
-  \
-  typedef asio::detail::handler_type_requirements< \
-      sizeof( \
-        asio::detail::argbyv( \
-          asio::detail::rvref< \
-            asio_true_handler_type>())) + \
-      sizeof( \
-        asio::detail::lvref< \
-          asio_true_handler_type>()( \
-            asio::detail::lvref<const asio::error_code>(), \
-            asio::detail::lvref<const range_type>()), \
-        char(0))> ASIO_UNUSED_TYPEDEF
-
-#define ASIO_WAIT_HANDLER_CHECK( \
-    handler_type, handler) \
-  \
-  typedef ASIO_HANDLER_TYPE(handler_type, \
-      void(asio::error_code)) \
-    asio_true_handler_type; \
-  \
-  ASIO_HANDLER_TYPE_REQUIREMENTS_ASSERT( \
-      sizeof(asio::detail::one_arg_handler_test( \
-          asio::detail::rvref< \
-            asio_true_handler_type>(), \
-          static_cast<const asio::error_code*>(0))) == 1, \
-      "WaitHandler type requirements not met") \
-  \
-  typedef asio::detail::handler_type_requirements< \
-      sizeof( \
-        asio::detail::argbyv( \
-          asio::detail::rvref< \
-            asio_true_handler_type>())) + \
-      sizeof( \
-        asio::detail::lvref< \
-          asio_true_handler_type>()( \
-            asio::detail::lvref<const asio::error_code>()), \
-        char(0))> ASIO_UNUSED_TYPEDEF
-
-#define ASIO_SIGNAL_HANDLER_CHECK( \
-    handler_type, handler) \
-  \
-  typedef ASIO_HANDLER_TYPE(handler_type, \
-      void(asio::error_code, int)) \
-    asio_true_handler_type; \
-  \
-  ASIO_HANDLER_TYPE_REQUIREMENTS_ASSERT( \
-      sizeof(asio::detail::two_arg_handler_test( \
-          asio::detail::rvref< \
-            asio_true_handler_type>(), \
-          static_cast<const asio::error_code*>(0), \
-          static_cast<const int*>(0))) == 1, \
-      "SignalHandler type requirements not met") \
-  \
-  typedef asio::detail::handler_type_requirements< \
-      sizeof( \
-        asio::detail::argbyv( \
-          asio::detail::rvref< \
-            asio_true_handler_type>())) + \
-      sizeof( \
-        asio::detail::lvref< \
-          asio_true_handler_type>()( \
-            asio::detail::lvref<const asio::error_code>(), \
-            asio::detail::lvref<const int>()), \
-        char(0))> ASIO_UNUSED_TYPEDEF
-
-#define ASIO_HANDSHAKE_HANDLER_CHECK( \
-    handler_type, handler) \
-  \
-  typedef ASIO_HANDLER_TYPE(handler_type, \
-      void(asio::error_code)) \
-    asio_true_handler_type; \
-  \
-  ASIO_HANDLER_TYPE_REQUIREMENTS_ASSERT( \
-      sizeof(asio::detail::one_arg_handler_test( \
-          asio::detail::rvref< \
-            asio_true_handler_type>(), \
-          static_cast<const asio::error_code*>(0))) == 1, \
-      "HandshakeHandler type requirements not met") \
-  \
-  typedef asio::detail::handler_type_requirements< \
-      sizeof( \
-        asio::detail::argbyv( \
-          asio::detail::rvref< \
-            asio_true_handler_type>())) + \
-      sizeof( \
-        asio::detail::lvref< \
-          asio_true_handler_type>()( \
-            asio::detail::lvref<const asio::error_code>()), \
-        char(0))> ASIO_UNUSED_TYPEDEF
-
-#define ASIO_BUFFERED_HANDSHAKE_HANDLER_CHECK( \
-    handler_type, handler) \
-  \
-  typedef ASIO_HANDLER_TYPE(handler_type, \
-      void(asio::error_code, std::size_t)) \
-    asio_true_handler_type; \
-  \
-  ASIO_HANDLER_TYPE_REQUIREMENTS_ASSERT( \
-      sizeof(asio::detail::two_arg_handler_test( \
-          asio::detail::rvref< \
-            asio_true_handler_type>(), \
-          static_cast<const asio::error_code*>(0), \
-          static_cast<const std::size_t*>(0))) == 1, \
-      "BufferedHandshakeHandler type requirements not met") \
-  \
-  typedef asio::detail::handler_type_requirements< \
-      sizeof( \
-        asio::detail::argbyv( \
-          asio::detail::rvref< \
-            asio_true_handler_type>())) + \
-      sizeof( \
-        asio::detail::lvref< \
-          asio_true_handler_type>()( \
-          asio::detail::lvref<const asio::error_code>(), \
-          asio::detail::lvref<const std::size_t>()), \
-        char(0))> ASIO_UNUSED_TYPEDEF
-
-#define ASIO_SHUTDOWN_HANDLER_CHECK( \
-    handler_type, handler) \
-  \
-  typedef ASIO_HANDLER_TYPE(handler_type, \
-      void(asio::error_code)) \
-    asio_true_handler_type; \
-  \
-  ASIO_HANDLER_TYPE_REQUIREMENTS_ASSERT( \
-      sizeof(asio::detail::one_arg_handler_test( \
-          asio::detail::rvref< \
-            asio_true_handler_type>(), \
-          static_cast<const asio::error_code*>(0))) == 1, \
-      "ShutdownHandler type requirements not met") \
-  \
-  typedef asio::detail::handler_type_requirements< \
-      sizeof( \
-        asio::detail::argbyv( \
-          asio::detail::rvref< \
-            asio_true_handler_type>())) + \
-      sizeof( \
-        asio::detail::lvref< \
-          asio_true_handler_type>()( \
-            asio::detail::lvref<const asio::error_code>()), \
-        char(0))> ASIO_UNUSED_TYPEDEF
-
-#else // !defined(ASIO_ENABLE_HANDLER_TYPE_REQUIREMENTS)
-
-#define ASIO_LEGACY_COMPLETION_HANDLER_CHECK( \
-    handler_type, handler) \
-  typedef int ASIO_UNUSED_TYPEDEF
-
-#define ASIO_READ_HANDLER_CHECK( \
-    handler_type, handler) \
-  typedef int ASIO_UNUSED_TYPEDEF
-
-#define ASIO_WRITE_HANDLER_CHECK( \
-    handler_type, handler) \
-  typedef int ASIO_UNUSED_TYPEDEF
-
-#define ASIO_ACCEPT_HANDLER_CHECK( \
-    handler_type, handler) \
-  typedef int ASIO_UNUSED_TYPEDEF
-
-#define ASIO_MOVE_ACCEPT_HANDLER_CHECK( \
-    handler_type, handler, socket_type) \
-  typedef int ASIO_UNUSED_TYPEDEF
-
-#define ASIO_CONNECT_HANDLER_CHECK( \
-    handler_type, handler) \
-  typedef int ASIO_UNUSED_TYPEDEF
-
-#define ASIO_RANGE_CONNECT_HANDLER_CHECK( \
-    handler_type, handler, iter_type) \
-  typedef int ASIO_UNUSED_TYPEDEF
-
-#define ASIO_ITERATOR_CONNECT_HANDLER_CHECK( \
-    handler_type, handler, iter_type) \
-  typedef int ASIO_UNUSED_TYPEDEF
-
-#define ASIO_RESOLVE_HANDLER_CHECK( \
-    handler_type, handler, iter_type) \
-  typedef int ASIO_UNUSED_TYPEDEF
-
-#define ASIO_WAIT_HANDLER_CHECK( \
-    handler_type, handler) \
-  typedef int ASIO_UNUSED_TYPEDEF
-
-#define ASIO_SIGNAL_HANDLER_CHECK( \
-    handler_type, handler) \
-  typedef int ASIO_UNUSED_TYPEDEF
-
-#define ASIO_HANDSHAKE_HANDLER_CHECK( \
-    handler_type, handler) \
-  typedef int ASIO_UNUSED_TYPEDEF
-
-#define ASIO_BUFFERED_HANDSHAKE_HANDLER_CHECK( \
-    handler_type, handler) \
-  typedef int ASIO_UNUSED_TYPEDEF
-
-#define ASIO_SHUTDOWN_HANDLER_CHECK( \
-    handler_type, handler) \
-  typedef int ASIO_UNUSED_TYPEDEF
-
-#endif // !defined(ASIO_ENABLE_HANDLER_TYPE_REQUIREMENTS)
-
-} // namespace detail
-} // namespace asio
-
-#endif // ASIO_DETAIL_HANDLER_TYPE_REQUIREMENTS_HPP
diff --git a/lib/asio/detail/handler_work.hpp b/lib/asio/detail/handler_work.hpp
deleted file mode 100644
index cce5c4b..0000000
--- a/lib/asio/detail/handler_work.hpp
+++ /dev/null
@@ -1,95 +0,0 @@
-//
-// detail/handler_work.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_HANDLER_WORK_HPP
-#define ASIO_DETAIL_HANDLER_WORK_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-#include "asio/associated_executor.hpp"
-#include "asio/detail/handler_invoke_helpers.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-// A helper class template to allow completion handlers to be dispatched
-// through either the new executors framework or the old invocaton hook. The
-// primary template uses the new executors framework.
-template <typename Handler, typename Executor
-    = typename associated_executor<Handler>::type>
-class handler_work
-{
-public:
-  explicit handler_work(Handler& handler) ASIO_NOEXCEPT
-    : executor_(associated_executor<Handler>::get(handler))
-  {
-  }
-
-  static void start(Handler& handler) ASIO_NOEXCEPT
-  {
-    Executor ex(associated_executor<Handler>::get(handler));
-    ex.on_work_started();
-  }
-
-  ~handler_work()
-  {
-    executor_.on_work_finished();
-  }
-
-  template <typename Function>
-  void complete(Function& function, Handler& handler)
-  {
-    executor_.dispatch(ASIO_MOVE_CAST(Function)(function),
-        associated_allocator<Handler>::get(handler));
-  }
-
-private:
-  // Disallow copying and assignment.
-  handler_work(const handler_work&);
-  handler_work& operator=(const handler_work&);
-
-  typename associated_executor<Handler>::type executor_;
-};
-
-// This specialisation dispatches a handler through the old invocation hook.
-// The specialisation is not strictly required for correctness, as the
-// system_executor will dispatch through the hook anyway. However, by doing
-// this we avoid an extra copy of the handler.
-template <typename Handler>
-class handler_work<Handler, system_executor>
-{
-public:
-  explicit handler_work(Handler&) ASIO_NOEXCEPT {}
-  static void start(Handler&) ASIO_NOEXCEPT {}
-  ~handler_work() {}
-
-  template <typename Function>
-  void complete(Function& function, Handler& handler)
-  {
-    asio_handler_invoke_helpers::invoke(function, handler);
-  }
-
-private:
-  // Disallow copying and assignment.
-  handler_work(const handler_work&);
-  handler_work& operator=(const handler_work&);
-};
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // ASIO_DETAIL_HANDLER_WORK_HPP
diff --git a/lib/asio/detail/hash_map.hpp b/lib/asio/detail/hash_map.hpp
deleted file mode 100644
index e70970d..0000000
--- a/lib/asio/detail/hash_map.hpp
+++ /dev/null
@@ -1,331 +0,0 @@
-//
-// detail/hash_map.hpp
-// ~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_HASH_MAP_HPP
-#define ASIO_DETAIL_HASH_MAP_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-#include <list>
-#include <utility>
-#include "asio/detail/assert.hpp"
-#include "asio/detail/noncopyable.hpp"
-
-#if defined(ASIO_WINDOWS) || defined(__CYGWIN__)
-# include "asio/detail/socket_types.hpp"
-#endif // defined(ASIO_WINDOWS) || defined(__CYGWIN__)
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-inline std::size_t calculate_hash_value(int i)
-{
-  return static_cast<std::size_t>(i);
-}
-
-inline std::size_t calculate_hash_value(void* p)
-{
-  return reinterpret_cast<std::size_t>(p)
-    + (reinterpret_cast<std::size_t>(p) >> 3);
-}
-
-#if defined(ASIO_WINDOWS) || defined(__CYGWIN__)
-inline std::size_t calculate_hash_value(SOCKET s)
-{
-  return static_cast<std::size_t>(s);
-}
-#endif // defined(ASIO_WINDOWS) || defined(__CYGWIN__)
-
-// Note: assumes K and V are POD types.
-template <typename K, typename V>
-class hash_map
-  : private noncopyable
-{
-public:
-  // The type of a value in the map.
-  typedef std::pair<K, V> value_type;
-
-  // The type of a non-const iterator over the hash map.
-  typedef typename std::list<value_type>::iterator iterator;
-
-  // The type of a const iterator over the hash map.
-  typedef typename std::list<value_type>::const_iterator const_iterator;
-
-  // Constructor.
-  hash_map()
-    : size_(0),
-      buckets_(0),
-      num_buckets_(0)
-  {
-  }
-
-  // Destructor.
-  ~hash_map()
-  {
-    delete[] buckets_;
-  }
-
-  // Get an iterator for the beginning of the map.
-  iterator begin()
-  {
-    return values_.begin();
-  }
-
-  // Get an iterator for the beginning of the map.
-  const_iterator begin() const
-  {
-    return values_.begin();
-  }
-
-  // Get an iterator for the end of the map.
-  iterator end()
-  {
-    return values_.end();
-  }
-
-  // Get an iterator for the end of the map.
-  const_iterator end() const
-  {
-    return values_.end();
-  }
-
-  // Check whether the map is empty.
-  bool empty() const
-  {
-    return values_.empty();
-  }
-
-  // Find an entry in the map.
-  iterator find(const K& k)
-  {
-    if (num_buckets_)
-    {
-      size_t bucket = calculate_hash_value(k) % num_buckets_;
-      iterator it = buckets_[bucket].first;
-      if (it == values_.end())
-        return values_.end();
-      iterator end_it = buckets_[bucket].last;
-      ++end_it;
-      while (it != end_it)
-      {
-        if (it->first == k)
-          return it;
-        ++it;
-      }
-    }
-    return values_.end();
-  }
-
-  // Find an entry in the map.
-  const_iterator find(const K& k) const
-  {
-    if (num_buckets_)
-    {
-      size_t bucket = calculate_hash_value(k) % num_buckets_;
-      const_iterator it = buckets_[bucket].first;
-      if (it == values_.end())
-        return it;
-      const_iterator end_it = buckets_[bucket].last;
-      ++end_it;
-      while (it != end_it)
-      {
-        if (it->first == k)
-          return it;
-        ++it;
-      }
-    }
-    return values_.end();
-  }
-
-  // Insert a new entry into the map.
-  std::pair<iterator, bool> insert(const value_type& v)
-  {
-    if (size_ + 1 >= num_buckets_)
-      rehash(hash_size(size_ + 1));
-    size_t bucket = calculate_hash_value(v.first) % num_buckets_;
-    iterator it = buckets_[bucket].first;
-    if (it == values_.end())
-    {
-      buckets_[bucket].first = buckets_[bucket].last =
-        values_insert(values_.end(), v);
-      ++size_;
-      return std::pair<iterator, bool>(buckets_[bucket].last, true);
-    }
-    iterator end_it = buckets_[bucket].last;
-    ++end_it;
-    while (it != end_it)
-    {
-      if (it->first == v.first)
-        return std::pair<iterator, bool>(it, false);
-      ++it;
-    }
-    buckets_[bucket].last = values_insert(end_it, v);
-    ++size_;
-    return std::pair<iterator, bool>(buckets_[bucket].last, true);
-  }
-
-  // Erase an entry from the map.
-  void erase(iterator it)
-  {
-    ASIO_ASSERT(it != values_.end());
-    ASIO_ASSERT(num_buckets_ != 0);
-
-    size_t bucket = calculate_hash_value(it->first) % num_buckets_;
-    bool is_first = (it == buckets_[bucket].first);
-    bool is_last = (it == buckets_[bucket].last);
-    if (is_first && is_last)
-      buckets_[bucket].first = buckets_[bucket].last = values_.end();
-    else if (is_first)
-      ++buckets_[bucket].first;
-    else if (is_last)
-      --buckets_[bucket].last;
-
-    values_erase(it);
-    --size_;
-  }
-
-  // Erase a key from the map.
-  void erase(const K& k)
-  {
-    iterator it = find(k);
-    if (it != values_.end())
-      erase(it);
-  }
-
-  // Remove all entries from the map.
-  void clear()
-  {
-    // Clear the values.
-    values_.clear();
-    size_ = 0;
-
-    // Initialise all buckets to empty.
-    iterator end_it = values_.end();
-    for (size_t i = 0; i < num_buckets_; ++i)
-      buckets_[i].first = buckets_[i].last = end_it;
-  }
-
-private:
-  // Calculate the hash size for the specified number of elements.
-  static std::size_t hash_size(std::size_t num_elems)
-  {
-    static std::size_t sizes[] =
-    {
-#if defined(ASIO_HASH_MAP_BUCKETS)
-      ASIO_HASH_MAP_BUCKETS
-#else // ASIO_HASH_MAP_BUCKETS
-      3, 13, 23, 53, 97, 193, 389, 769, 1543, 3079, 6151, 12289, 24593,
-      49157, 98317, 196613, 393241, 786433, 1572869, 3145739, 6291469,
-      12582917, 25165843
-#endif // ASIO_HASH_MAP_BUCKETS
-    };
-    const std::size_t nth_size = sizeof(sizes) / sizeof(std::size_t) - 1;
-    for (std::size_t i = 0; i < nth_size; ++i)
-      if (num_elems < sizes[i])
-        return sizes[i];
-    return sizes[nth_size];
-  }
-
-  // Re-initialise the hash from the values already contained in the list.
-  void rehash(std::size_t num_buckets)
-  {
-    if (num_buckets == num_buckets_)
-      return;
-    ASIO_ASSERT(num_buckets != 0);
-
-    iterator end_iter = values_.end();
-
-    // Update number of buckets and initialise all buckets to empty.
-    bucket_type* tmp = new bucket_type[num_buckets];
-    delete[] buckets_;
-    buckets_ = tmp;
-    num_buckets_ = num_buckets;
-    for (std::size_t i = 0; i < num_buckets_; ++i)
-      buckets_[i].first = buckets_[i].last = end_iter;
-
-    // Put all values back into the hash.
-    iterator iter = values_.begin();
-    while (iter != end_iter)
-    {
-      std::size_t bucket = calculate_hash_value(iter->first) % num_buckets_;
-      if (buckets_[bucket].last == end_iter)
-      {
-        buckets_[bucket].first = buckets_[bucket].last = iter++;
-      }
-      else if (++buckets_[bucket].last == iter)
-      {
-        ++iter;
-      }
-      else
-      {
-        values_.splice(buckets_[bucket].last, values_, iter++);
-        --buckets_[bucket].last;
-      }
-    }
-  }
-
-  // Insert an element into the values list by splicing from the spares list,
-  // if a spare is available, and otherwise by inserting a new element.
-  iterator values_insert(iterator it, const value_type& v)
-  {
-    if (spares_.empty())
-    {
-      return values_.insert(it, v);
-    }
-    else
-    {
-      spares_.front() = v;
-      values_.splice(it, spares_, spares_.begin());
-      return --it;
-    }
-  }
-
-  // Erase an element from the values list by splicing it to the spares list.
-  void values_erase(iterator it)
-  {
-    *it = value_type();
-    spares_.splice(spares_.begin(), values_, it);
-  }
-
-  // The number of elements in the hash.
-  std::size_t size_;
-
-  // The list of all values in the hash map.
-  std::list<value_type> values_;
-
-  // The list of spare nodes waiting to be recycled. Assumes that POD types only
-  // are stored in the hash map.
-  std::list<value_type> spares_;
-
-  // The type for a bucket in the hash table.
-  struct bucket_type
-  {
-    iterator first;
-    iterator last;
-  };
-
-  // The buckets in the hash.
-  bucket_type* buckets_;
-
-  // The number of buckets in the hash.
-  std::size_t num_buckets_;
-};
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // ASIO_DETAIL_HASH_MAP_HPP
diff --git a/lib/asio/detail/impl/buffer_sequence_adapter.ipp b/lib/asio/detail/impl/buffer_sequence_adapter.ipp
deleted file mode 100644
index 323c8ad..0000000
--- a/lib/asio/detail/impl/buffer_sequence_adapter.ipp
+++ /dev/null
@@ -1,118 +0,0 @@
-//
-// detail/impl/buffer_sequence_adapter.ipp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_IMPL_BUFFER_SEQUENCE_ADAPTER_IPP
-#define ASIO_DETAIL_IMPL_BUFFER_SEQUENCE_ADAPTER_IPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-
-#if defined(ASIO_WINDOWS_RUNTIME)
-
-#include <robuffer.h>
-#include <windows.storage.streams.h>
-#include <wrl/implements.h>
-#include "asio/detail/buffer_sequence_adapter.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-class winrt_buffer_impl :
-  public Microsoft::WRL::RuntimeClass<
-    Microsoft::WRL::RuntimeClassFlags<
-      Microsoft::WRL::RuntimeClassType::WinRtClassicComMix>,
-    ABI::Windows::Storage::Streams::IBuffer,
-    Windows::Storage::Streams::IBufferByteAccess>
-{
-public:
-  explicit winrt_buffer_impl(const asio::const_buffer& b)
-  {
-    bytes_ = const_cast<byte*>(static_cast<const byte*>(b.data()));
-    length_ = b.size();
-    capacity_ = b.size();
-  }
-
-  explicit winrt_buffer_impl(const asio::mutable_buffer& b)
-  {
-    bytes_ = static_cast<byte*>(b.data());
-    length_ = 0;
-    capacity_ = b.size();
-  }
-
-  ~winrt_buffer_impl()
-  {
-  }
-
-  STDMETHODIMP Buffer(byte** value)
-  {
-    *value = bytes_;
-    return S_OK;
-  }
-
-  STDMETHODIMP get_Capacity(UINT32* value)
-  {
-    *value = capacity_;
-    return S_OK;
-  }
-
-  STDMETHODIMP get_Length(UINT32 *value)
-  {
-    *value = length_;
-    return S_OK;
-  }
-
-  STDMETHODIMP put_Length(UINT32 value)
-  {
-    if (value > capacity_)
-      return E_INVALIDARG;
-    length_ = value;
-    return S_OK;
-  }
-
-private:
-  byte* bytes_;
-  UINT32 length_;
-  UINT32 capacity_;
-};
-
-void buffer_sequence_adapter_base::init_native_buffer(
-    buffer_sequence_adapter_base::native_buffer_type& buf,
-    const asio::mutable_buffer& buffer)
-{
-  std::memset(&buf, 0, sizeof(native_buffer_type));
-  Microsoft::WRL::ComPtr<IInspectable> insp
-    = Microsoft::WRL::Make<winrt_buffer_impl>(buffer);
-  buf = reinterpret_cast<Windows::Storage::Streams::IBuffer^>(insp.Get());
-}
-
-void buffer_sequence_adapter_base::init_native_buffer(
-    buffer_sequence_adapter_base::native_buffer_type& buf,
-    const asio::const_buffer& buffer)
-{
-  std::memset(&buf, 0, sizeof(native_buffer_type));
-  Microsoft::WRL::ComPtr<IInspectable> insp
-    = Microsoft::WRL::Make<winrt_buffer_impl>(buffer);
-  Platform::Object^ buf_obj = reinterpret_cast<Platform::Object^>(insp.Get());
-  buf = reinterpret_cast<Windows::Storage::Streams::IBuffer^>(insp.Get());
-}
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // defined(ASIO_WINDOWS_RUNTIME)
-
-#endif // ASIO_DETAIL_IMPL_BUFFER_SEQUENCE_ADAPTER_IPP
diff --git a/lib/asio/detail/impl/descriptor_ops.ipp b/lib/asio/detail/impl/descriptor_ops.ipp
deleted file mode 100644
index 1af643f..0000000
--- a/lib/asio/detail/impl/descriptor_ops.ipp
+++ /dev/null
@@ -1,474 +0,0 @@
-//
-// detail/impl/descriptor_ops.ipp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_IMPL_DESCRIPTOR_OPS_IPP
-#define ASIO_DETAIL_IMPL_DESCRIPTOR_OPS_IPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-#include <cerrno>
-#include "asio/detail/descriptor_ops.hpp"
-#include "asio/error.hpp"
-
-#if !defined(ASIO_WINDOWS) \
-  && !defined(ASIO_WINDOWS_RUNTIME) \
-  && !defined(__CYGWIN__)
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-namespace descriptor_ops {
-
-int open(const char* path, int flags, asio::error_code& ec)
-{
-  errno = 0;
-  int result = error_wrapper(::open(path, flags), ec);
-  if (result >= 0)
-    ec = asio::error_code();
-  return result;
-}
-
-int close(int d, state_type& state, asio::error_code& ec)
-{
-  int result = 0;
-  if (d != -1)
-  {
-    errno = 0;
-    result = error_wrapper(::close(d), ec);
-
-    if (result != 0
-        && (ec == asio::error::would_block
-          || ec == asio::error::try_again))
-    {
-      // According to UNIX Network Programming Vol. 1, it is possible for
-      // close() to fail with EWOULDBLOCK under certain circumstances. What
-      // isn't clear is the state of the descriptor after this error. The one
-      // current OS where this behaviour is seen, Windows, says that the socket
-      // remains open. Therefore we'll put the descriptor back into blocking
-      // mode and have another attempt at closing it.
-#if defined(__SYMBIAN32__)
-      int flags = ::fcntl(d, F_GETFL, 0);
-      if (flags >= 0)
-        ::fcntl(d, F_SETFL, flags & ~O_NONBLOCK);
-#else // defined(__SYMBIAN32__)
-      ioctl_arg_type arg = 0;
-      ::ioctl(d, FIONBIO, &arg);
-#endif // defined(__SYMBIAN32__)
-      state &= ~non_blocking;
-
-      errno = 0;
-      result = error_wrapper(::close(d), ec);
-    }
-  }
-
-  if (result == 0)
-    ec = asio::error_code();
-  return result;
-}
-
-bool set_user_non_blocking(int d, state_type& state,
-    bool value, asio::error_code& ec)
-{
-  if (d == -1)
-  {
-    ec = asio::error::bad_descriptor;
-    return false;
-  }
-
-  errno = 0;
-#if defined(__SYMBIAN32__)
-  int result = error_wrapper(::fcntl(d, F_GETFL, 0), ec);
-  if (result >= 0)
-  {
-    errno = 0;
-    int flag = (value ? (result | O_NONBLOCK) : (result & ~O_NONBLOCK));
-    result = error_wrapper(::fcntl(d, F_SETFL, flag), ec);
-  }
-#else // defined(__SYMBIAN32__)
-  ioctl_arg_type arg = (value ? 1 : 0);
-  int result = error_wrapper(::ioctl(d, FIONBIO, &arg), ec);
-#endif // defined(__SYMBIAN32__)
-
-  if (result >= 0)
-  {
-    ec = asio::error_code();
-    if (value)
-      state |= user_set_non_blocking;
-    else
-    {
-      // Clearing the user-set non-blocking mode always overrides any
-      // internally-set non-blocking flag. Any subsequent asynchronous
-      // operations will need to re-enable non-blocking I/O.
-      state &= ~(user_set_non_blocking | internal_non_blocking);
-    }
-    return true;
-  }
-
-  return false;
-}
-
-bool set_internal_non_blocking(int d, state_type& state,
-    bool value, asio::error_code& ec)
-{
-  if (d == -1)
-  {
-    ec = asio::error::bad_descriptor;
-    return false;
-  }
-
-  if (!value && (state & user_set_non_blocking))
-  {
-    // It does not make sense to clear the internal non-blocking flag if the
-    // user still wants non-blocking behaviour. Return an error and let the
-    // caller figure out whether to update the user-set non-blocking flag.
-    ec = asio::error::invalid_argument;
-    return false;
-  }
-
-  errno = 0;
-#if defined(__SYMBIAN32__)
-  int result = error_wrapper(::fcntl(d, F_GETFL, 0), ec);
-  if (result >= 0)
-  {
-    errno = 0;
-    int flag = (value ? (result | O_NONBLOCK) : (result & ~O_NONBLOCK));
-    result = error_wrapper(::fcntl(d, F_SETFL, flag), ec);
-  }
-#else // defined(__SYMBIAN32__)
-  ioctl_arg_type arg = (value ? 1 : 0);
-  int result = error_wrapper(::ioctl(d, FIONBIO, &arg), ec);
-#endif // defined(__SYMBIAN32__)
-
-  if (result >= 0)
-  {
-    ec = asio::error_code();
-    if (value)
-      state |= internal_non_blocking;
-    else
-      state &= ~internal_non_blocking;
-    return true;
-  }
-
-  return false;
-}
-
-std::size_t sync_read(int d, state_type state, buf* bufs,
-    std::size_t count, bool all_empty, asio::error_code& ec)
-{
-  if (d == -1)
-  {
-    ec = asio::error::bad_descriptor;
-    return 0;
-  }
-
-  // A request to read 0 bytes on a stream is a no-op.
-  if (all_empty)
-  {
-    ec = asio::error_code();
-    return 0;
-  }
-
-  // Read some data.
-  for (;;)
-  {
-    // Try to complete the operation without blocking.
-    errno = 0;
-    signed_size_type bytes = error_wrapper(::readv(
-          d, bufs, static_cast<int>(count)), ec);
-
-    // Check if operation succeeded.
-    if (bytes > 0)
-      return bytes;
-
-    // Check for EOF.
-    if (bytes == 0)
-    {
-      ec = asio::error::eof;
-      return 0;
-    }
-
-    // Operation failed.
-    if ((state & user_set_non_blocking)
-        || (ec != asio::error::would_block
-          && ec != asio::error::try_again))
-      return 0;
-
-    // Wait for descriptor to become ready.
-    if (descriptor_ops::poll_read(d, 0, ec) < 0)
-      return 0;
-  }
-}
-
-bool non_blocking_read(int d, buf* bufs, std::size_t count,
-    asio::error_code& ec, std::size_t& bytes_transferred)
-{
-  for (;;)
-  {
-    // Read some data.
-    errno = 0;
-    signed_size_type bytes = error_wrapper(::readv(
-          d, bufs, static_cast<int>(count)), ec);
-
-    // Check for end of stream.
-    if (bytes == 0)
-    {
-      ec = asio::error::eof;
-      return true;
-    }
-
-    // Retry operation if interrupted by signal.
-    if (ec == asio::error::interrupted)
-      continue;
-
-    // Check if we need to run the operation again.
-    if (ec == asio::error::would_block
-        || ec == asio::error::try_again)
-      return false;
-
-    // Operation is complete.
-    if (bytes > 0)
-    {
-      ec = asio::error_code();
-      bytes_transferred = bytes;
-    }
-    else
-      bytes_transferred = 0;
-
-    return true;
-  }
-}
-
-std::size_t sync_write(int d, state_type state, const buf* bufs,
-    std::size_t count, bool all_empty, asio::error_code& ec)
-{
-  if (d == -1)
-  {
-    ec = asio::error::bad_descriptor;
-    return 0;
-  }
-
-  // A request to write 0 bytes on a stream is a no-op.
-  if (all_empty)
-  {
-    ec = asio::error_code();
-    return 0;
-  }
-
-  // Write some data.
-  for (;;)
-  {
-    // Try to complete the operation without blocking.
-    errno = 0;
-    signed_size_type bytes = error_wrapper(::writev(
-          d, bufs, static_cast<int>(count)), ec);
-
-    // Check if operation succeeded.
-    if (bytes > 0)
-      return bytes;
-
-    // Operation failed.
-    if ((state & user_set_non_blocking)
-        || (ec != asio::error::would_block
-          && ec != asio::error::try_again))
-      return 0;
-
-    // Wait for descriptor to become ready.
-    if (descriptor_ops::poll_write(d, 0, ec) < 0)
-      return 0;
-  }
-}
-
-bool non_blocking_write(int d, const buf* bufs, std::size_t count,
-    asio::error_code& ec, std::size_t& bytes_transferred)
-{
-  for (;;)
-  {
-    // Write some data.
-    errno = 0;
-    signed_size_type bytes = error_wrapper(::writev(
-          d, bufs, static_cast<int>(count)), ec);
-
-    // Retry operation if interrupted by signal.
-    if (ec == asio::error::interrupted)
-      continue;
-
-    // Check if we need to run the operation again.
-    if (ec == asio::error::would_block
-        || ec == asio::error::try_again)
-      return false;
-
-    // Operation is complete.
-    if (bytes >= 0)
-    {
-      ec = asio::error_code();
-      bytes_transferred = bytes;
-    }
-    else
-      bytes_transferred = 0;
-
-    return true;
-  }
-}
-
-int ioctl(int d, state_type& state, long cmd,
-    ioctl_arg_type* arg, asio::error_code& ec)
-{
-  if (d == -1)
-  {
-    ec = asio::error::bad_descriptor;
-    return -1;
-  }
-
-  errno = 0;
-  int result = error_wrapper(::ioctl(d, cmd, arg), ec);
-
-  if (result >= 0)
-  {
-    ec = asio::error_code();
-
-    // When updating the non-blocking mode we always perform the ioctl syscall,
-    // even if the flags would otherwise indicate that the descriptor is
-    // already in the correct state. This ensures that the underlying
-    // descriptor is put into the state that has been requested by the user. If
-    // the ioctl syscall was successful then we need to update the flags to
-    // match.
-    if (cmd == static_cast<long>(FIONBIO))
-    {
-      if (*arg)
-      {
-        state |= user_set_non_blocking;
-      }
-      else
-      {
-        // Clearing the non-blocking mode always overrides any internally-set
-        // non-blocking flag. Any subsequent asynchronous operations will need
-        // to re-enable non-blocking I/O.
-        state &= ~(user_set_non_blocking | internal_non_blocking);
-      }
-    }
-  }
-
-  return result;
-}
-
-int fcntl(int d, int cmd, asio::error_code& ec)
-{
-  if (d == -1)
-  {
-    ec = asio::error::bad_descriptor;
-    return -1;
-  }
-
-  errno = 0;
-  int result = error_wrapper(::fcntl(d, cmd), ec);
-  if (result != -1)
-    ec = asio::error_code();
-  return result;
-}
-
-int fcntl(int d, int cmd, long arg, asio::error_code& ec)
-{
-  if (d == -1)
-  {
-    ec = asio::error::bad_descriptor;
-    return -1;
-  }
-
-  errno = 0;
-  int result = error_wrapper(::fcntl(d, cmd, arg), ec);
-  if (result != -1)
-    ec = asio::error_code();
-  return result;
-}
-
-int poll_read(int d, state_type state, asio::error_code& ec)
-{
-  if (d == -1)
-  {
-    ec = asio::error::bad_descriptor;
-    return -1;
-  }
-
-  pollfd fds;
-  fds.fd = d;
-  fds.events = POLLIN;
-  fds.revents = 0;
-  int timeout = (state & user_set_non_blocking) ? 0 : -1;
-  errno = 0;
-  int result = error_wrapper(::poll(&fds, 1, timeout), ec);
-  if (result == 0)
-    ec = (state & user_set_non_blocking)
-      ? asio::error::would_block : asio::error_code();
-  else if (result > 0)
-    ec = asio::error_code();
-  return result;
-}
-
-int poll_write(int d, state_type state, asio::error_code& ec)
-{
-  if (d == -1)
-  {
-    ec = asio::error::bad_descriptor;
-    return -1;
-  }
-
-  pollfd fds;
-  fds.fd = d;
-  fds.events = POLLOUT;
-  fds.revents = 0;
-  int timeout = (state & user_set_non_blocking) ? 0 : -1;
-  errno = 0;
-  int result = error_wrapper(::poll(&fds, 1, timeout), ec);
-  if (result == 0)
-    ec = (state & user_set_non_blocking)
-      ? asio::error::would_block : asio::error_code();
-  else if (result > 0)
-    ec = asio::error_code();
-  return result;
-}
-
-int poll_error(int d, state_type state, asio::error_code& ec)
-{
-  if (d == -1)
-  {
-    ec = asio::error::bad_descriptor;
-    return -1;
-  }
-
-  pollfd fds;
-  fds.fd = d;
-  fds.events = POLLPRI | POLLERR | POLLHUP;
-  fds.revents = 0;
-  int timeout = (state & user_set_non_blocking) ? 0 : -1;
-  errno = 0;
-  int result = error_wrapper(::poll(&fds, 1, timeout), ec);
-  if (result == 0)
-    ec = (state & user_set_non_blocking)
-      ? asio::error::would_block : asio::error_code();
-  else if (result > 0)
-    ec = asio::error_code();
-  return result;
-}
-
-} // namespace descriptor_ops
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // !defined(ASIO_WINDOWS)
-       //   && !defined(ASIO_WINDOWS_RUNTIME)
-       //   && !defined(__CYGWIN__)
-
-#endif // ASIO_DETAIL_IMPL_DESCRIPTOR_OPS_IPP
diff --git a/lib/asio/detail/impl/dev_poll_reactor.hpp b/lib/asio/detail/impl/dev_poll_reactor.hpp
deleted file mode 100644
index 4cd8aaf..0000000
--- a/lib/asio/detail/impl/dev_poll_reactor.hpp
+++ /dev/null
@@ -1,91 +0,0 @@
-//
-// detail/impl/dev_poll_reactor.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_IMPL_DEV_POLL_REACTOR_HPP
-#define ASIO_DETAIL_IMPL_DEV_POLL_REACTOR_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-
-#if defined(ASIO_HAS_DEV_POLL)
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-template <typename Time_Traits>
-void dev_poll_reactor::add_timer_queue(timer_queue<Time_Traits>& queue)
-{
-  do_add_timer_queue(queue);
-}
-
-template <typename Time_Traits>
-void dev_poll_reactor::remove_timer_queue(timer_queue<Time_Traits>& queue)
-{
-  do_remove_timer_queue(queue);
-}
-
-template <typename Time_Traits>
-void dev_poll_reactor::schedule_timer(timer_queue<Time_Traits>& queue,
-    const typename Time_Traits::time_type& time,
-    typename timer_queue<Time_Traits>::per_timer_data& timer, wait_op* op)
-{
-  asio::detail::mutex::scoped_lock lock(mutex_);
-
-  if (shutdown_)
-  {
-    scheduler_.post_immediate_completion(op, false);
-    return;
-  }
-
-  bool earliest = queue.enqueue_timer(time, timer, op);
-  scheduler_.work_started();
-  if (earliest)
-    interrupter_.interrupt();
-}
-
-template <typename Time_Traits>
-std::size_t dev_poll_reactor::cancel_timer(timer_queue<Time_Traits>& queue,
-    typename timer_queue<Time_Traits>::per_timer_data& timer,
-    std::size_t max_cancelled)
-{
-  asio::detail::mutex::scoped_lock lock(mutex_);
-  op_queue<operation> ops;
-  std::size_t n = queue.cancel_timer(timer, ops, max_cancelled);
-  lock.unlock();
-  scheduler_.post_deferred_completions(ops);
-  return n;
-}
-
-template <typename Time_Traits>
-void dev_poll_reactor::move_timer(timer_queue<Time_Traits>& queue,
-    typename timer_queue<Time_Traits>::per_timer_data& target,
-    typename timer_queue<Time_Traits>::per_timer_data& source)
-{
-  asio::detail::mutex::scoped_lock lock(mutex_);
-  op_queue<operation> ops;
-  queue.cancel_timer(target, ops);
-  queue.move_timer(target, source);
-  lock.unlock();
-  scheduler_.post_deferred_completions(ops);
-}
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // defined(ASIO_HAS_DEV_POLL)
-
-#endif // ASIO_DETAIL_IMPL_DEV_POLL_REACTOR_HPP
diff --git a/lib/asio/detail/impl/dev_poll_reactor.ipp b/lib/asio/detail/impl/dev_poll_reactor.ipp
deleted file mode 100644
index 1ca376c..0000000
--- a/lib/asio/detail/impl/dev_poll_reactor.ipp
+++ /dev/null
@@ -1,446 +0,0 @@
-//
-// detail/impl/dev_poll_reactor.ipp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_IMPL_DEV_POLL_REACTOR_IPP
-#define ASIO_DETAIL_IMPL_DEV_POLL_REACTOR_IPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-
-#if defined(ASIO_HAS_DEV_POLL)
-
-#include "asio/detail/dev_poll_reactor.hpp"
-#include "asio/detail/assert.hpp"
-#include "asio/detail/throw_error.hpp"
-#include "asio/error.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-dev_poll_reactor::dev_poll_reactor(asio::execution_context& ctx)
-  : asio::detail::execution_context_service_base<dev_poll_reactor>(ctx),
-    scheduler_(use_service<scheduler>(ctx)),
-    mutex_(),
-    dev_poll_fd_(do_dev_poll_create()),
-    interrupter_(),
-    shutdown_(false)
-{
-  // Add the interrupter's descriptor to /dev/poll.
-  ::pollfd ev = { 0, 0, 0 };
-  ev.fd = interrupter_.read_descriptor();
-  ev.events = POLLIN | POLLERR;
-  ev.revents = 0;
-  ::write(dev_poll_fd_, &ev, sizeof(ev));
-}
-
-dev_poll_reactor::~dev_poll_reactor()
-{
-  shutdown();
-  ::close(dev_poll_fd_);
-}
-
-void dev_poll_reactor::shutdown()
-{
-  asio::detail::mutex::scoped_lock lock(mutex_);
-  shutdown_ = true;
-  lock.unlock();
-
-  op_queue<operation> ops;
-
-  for (int i = 0; i < max_ops; ++i)
-    op_queue_[i].get_all_operations(ops);
-
-  timer_queues_.get_all_timers(ops);
-
-  scheduler_.abandon_operations(ops);
-} 
-
-void dev_poll_reactor::notify_fork(
-    asio::execution_context::fork_event fork_ev)
-{
-  if (fork_ev == asio::execution_context::fork_child)
-  {
-    detail::mutex::scoped_lock lock(mutex_);
-
-    if (dev_poll_fd_ != -1)
-      ::close(dev_poll_fd_);
-    dev_poll_fd_ = -1;
-    dev_poll_fd_ = do_dev_poll_create();
-
-    interrupter_.recreate();
-
-    // Add the interrupter's descriptor to /dev/poll.
-    ::pollfd ev = { 0, 0, 0 };
-    ev.fd = interrupter_.read_descriptor();
-    ev.events = POLLIN | POLLERR;
-    ev.revents = 0;
-    ::write(dev_poll_fd_, &ev, sizeof(ev));
-
-    // Re-register all descriptors with /dev/poll. The changes will be written
-    // to the /dev/poll descriptor the next time the reactor is run.
-    for (int i = 0; i < max_ops; ++i)
-    {
-      reactor_op_queue<socket_type>::iterator iter = op_queue_[i].begin();
-      reactor_op_queue<socket_type>::iterator end = op_queue_[i].end();
-      for (; iter != end; ++iter)
-      {
-        ::pollfd& pending_ev = add_pending_event_change(iter->first);
-        pending_ev.events |= POLLERR | POLLHUP;
-        switch (i)
-        {
-        case read_op: pending_ev.events |= POLLIN; break;
-        case write_op: pending_ev.events |= POLLOUT; break;
-        case except_op: pending_ev.events |= POLLPRI; break;
-        default: break;
-        }
-      }
-    }
-    interrupter_.interrupt();
-  }
-}
-
-void dev_poll_reactor::init_task()
-{
-  scheduler_.init_task();
-}
-
-int dev_poll_reactor::register_descriptor(socket_type, per_descriptor_data&)
-{
-  return 0;
-}
-
-int dev_poll_reactor::register_internal_descriptor(int op_type,
-    socket_type descriptor, per_descriptor_data&, reactor_op* op)
-{
-  asio::detail::mutex::scoped_lock lock(mutex_);
-
-  op_queue_[op_type].enqueue_operation(descriptor, op);
-  ::pollfd& ev = add_pending_event_change(descriptor);
-  ev.events = POLLERR | POLLHUP;
-  switch (op_type)
-  {
-  case read_op: ev.events |= POLLIN; break;
-  case write_op: ev.events |= POLLOUT; break;
-  case except_op: ev.events |= POLLPRI; break;
-  default: break;
-  }
-  interrupter_.interrupt();
-
-  return 0;
-}
-
-void dev_poll_reactor::move_descriptor(socket_type,
-    dev_poll_reactor::per_descriptor_data&,
-    dev_poll_reactor::per_descriptor_data&)
-{
-}
-
-void dev_poll_reactor::start_op(int op_type, socket_type descriptor,
-    dev_poll_reactor::per_descriptor_data&, reactor_op* op,
-    bool is_continuation, bool allow_speculative)
-{
-  asio::detail::mutex::scoped_lock lock(mutex_);
-
-  if (shutdown_)
-  {
-    post_immediate_completion(op, is_continuation);
-    return;
-  }
-
-  if (allow_speculative)
-  {
-    if (op_type != read_op || !op_queue_[except_op].has_operation(descriptor))
-    {
-      if (!op_queue_[op_type].has_operation(descriptor))
-      {
-        if (op->perform())
-        {
-          lock.unlock();
-          scheduler_.post_immediate_completion(op, is_continuation);
-          return;
-        }
-      }
-    }
-  }
-
-  bool first = op_queue_[op_type].enqueue_operation(descriptor, op);
-  scheduler_.work_started();
-  if (first)
-  {
-    ::pollfd& ev = add_pending_event_change(descriptor);
-    ev.events = POLLERR | POLLHUP;
-    if (op_type == read_op
-        || op_queue_[read_op].has_operation(descriptor))
-      ev.events |= POLLIN;
-    if (op_type == write_op
-        || op_queue_[write_op].has_operation(descriptor))
-      ev.events |= POLLOUT;
-    if (op_type == except_op
-        || op_queue_[except_op].has_operation(descriptor))
-      ev.events |= POLLPRI;
-    interrupter_.interrupt();
-  }
-}
-
-void dev_poll_reactor::cancel_ops(socket_type descriptor,
-    dev_poll_reactor::per_descriptor_data&)
-{
-  asio::detail::mutex::scoped_lock lock(mutex_);
-  cancel_ops_unlocked(descriptor, asio::error::operation_aborted);
-}
-
-void dev_poll_reactor::deregister_descriptor(socket_type descriptor,
-    dev_poll_reactor::per_descriptor_data&, bool)
-{
-  asio::detail::mutex::scoped_lock lock(mutex_);
-
-  // Remove the descriptor from /dev/poll.
-  ::pollfd& ev = add_pending_event_change(descriptor);
-  ev.events = POLLREMOVE;
-  interrupter_.interrupt();
-
-  // Cancel any outstanding operations associated with the descriptor.
-  cancel_ops_unlocked(descriptor, asio::error::operation_aborted);
-}
-
-void dev_poll_reactor::deregister_internal_descriptor(
-    socket_type descriptor, dev_poll_reactor::per_descriptor_data&)
-{
-  asio::detail::mutex::scoped_lock lock(mutex_);
-
-  // Remove the descriptor from /dev/poll. Since this function is only called
-  // during a fork, we can apply the change immediately.
-  ::pollfd ev = { 0, 0, 0 };
-  ev.fd = descriptor;
-  ev.events = POLLREMOVE;
-  ev.revents = 0;
-  ::write(dev_poll_fd_, &ev, sizeof(ev));
-
-  // Destroy all operations associated with the descriptor.
-  op_queue<operation> ops;
-  asio::error_code ec;
-  for (int i = 0; i < max_ops; ++i)
-    op_queue_[i].cancel_operations(descriptor, ops, ec);
-}
-
-void dev_poll_reactor::cleanup_descriptor_data(
-    dev_poll_reactor::per_descriptor_data&)
-{
-}
-
-void dev_poll_reactor::run(long usec, op_queue<operation>& ops)
-{
-  asio::detail::mutex::scoped_lock lock(mutex_);
-
-  // We can return immediately if there's no work to do and the reactor is
-  // not supposed to block.
-  if (usec == 0 && op_queue_[read_op].empty() && op_queue_[write_op].empty()
-      && op_queue_[except_op].empty() && timer_queues_.all_empty())
-    return;
-
-  // Write the pending event registration changes to the /dev/poll descriptor.
-  std::size_t events_size = sizeof(::pollfd) * pending_event_changes_.size();
-  if (events_size > 0)
-  {
-    errno = 0;
-    int result = ::write(dev_poll_fd_,
-        &pending_event_changes_[0], events_size);
-    if (result != static_cast<int>(events_size))
-    {
-      asio::error_code ec = asio::error_code(
-          errno, asio::error::get_system_category());
-      for (std::size_t i = 0; i < pending_event_changes_.size(); ++i)
-      {
-        int descriptor = pending_event_changes_[i].fd;
-        for (int j = 0; j < max_ops; ++j)
-          op_queue_[j].cancel_operations(descriptor, ops, ec);
-      }
-    }
-    pending_event_changes_.clear();
-    pending_event_change_index_.clear();
-  }
-
-  // Calculate timeout.
-  int timeout;
-  if (usec == 0)
-    timeout = 0;
-  else
-  {
-    timeout = (usec < 0) ? -1 : ((usec - 1) / 1000 + 1);
-    timeout = get_timeout(timeout);
-  }
-  lock.unlock();
-
-  // Block on the /dev/poll descriptor.
-  ::pollfd events[128] = { { 0, 0, 0 } };
-  ::dvpoll dp = { 0, 0, 0 };
-  dp.dp_fds = events;
-  dp.dp_nfds = 128;
-  dp.dp_timeout = timeout;
-  int num_events = ::ioctl(dev_poll_fd_, DP_POLL, &dp);
-
-  lock.lock();
-
-  // Dispatch the waiting events.
-  for (int i = 0; i < num_events; ++i)
-  {
-    int descriptor = events[i].fd;
-    if (descriptor == interrupter_.read_descriptor())
-    {
-      interrupter_.reset();
-    }
-    else
-    {
-      bool more_reads = false;
-      bool more_writes = false;
-      bool more_except = false;
-
-      // Exception operations must be processed first to ensure that any
-      // out-of-band data is read before normal data.
-      if (events[i].events & (POLLPRI | POLLERR | POLLHUP))
-        more_except =
-          op_queue_[except_op].perform_operations(descriptor, ops);
-      else
-        more_except = op_queue_[except_op].has_operation(descriptor);
-
-      if (events[i].events & (POLLIN | POLLERR | POLLHUP))
-        more_reads = op_queue_[read_op].perform_operations(descriptor, ops);
-      else
-        more_reads = op_queue_[read_op].has_operation(descriptor);
-
-      if (events[i].events & (POLLOUT | POLLERR | POLLHUP))
-        more_writes = op_queue_[write_op].perform_operations(descriptor, ops);
-      else
-        more_writes = op_queue_[write_op].has_operation(descriptor);
-
-      if ((events[i].events & (POLLERR | POLLHUP)) != 0
-            && !more_except && !more_reads && !more_writes)
-      {
-        // If we have an event and no operations associated with the
-        // descriptor then we need to delete the descriptor from /dev/poll.
-        // The poll operation can produce POLLHUP or POLLERR events when there
-        // is no operation pending, so if we do not remove the descriptor we
-        // can end up in a tight polling loop.
-        ::pollfd ev = { 0, 0, 0 };
-        ev.fd = descriptor;
-        ev.events = POLLREMOVE;
-        ev.revents = 0;
-        ::write(dev_poll_fd_, &ev, sizeof(ev));
-      }
-      else
-      {
-        ::pollfd ev = { 0, 0, 0 };
-        ev.fd = descriptor;
-        ev.events = POLLERR | POLLHUP;
-        if (more_reads)
-          ev.events |= POLLIN;
-        if (more_writes)
-          ev.events |= POLLOUT;
-        if (more_except)
-          ev.events |= POLLPRI;
-        ev.revents = 0;
-        int result = ::write(dev_poll_fd_, &ev, sizeof(ev));
-        if (result != sizeof(ev))
-        {
-          asio::error_code ec(errno,
-              asio::error::get_system_category());
-          for (int j = 0; j < max_ops; ++j)
-            op_queue_[j].cancel_operations(descriptor, ops, ec);
-        }
-      }
-    }
-  }
-  timer_queues_.get_ready_timers(ops);
-}
-
-void dev_poll_reactor::interrupt()
-{
-  interrupter_.interrupt();
-}
-
-int dev_poll_reactor::do_dev_poll_create()
-{
-  int fd = ::open("/dev/poll", O_RDWR);
-  if (fd == -1)
-  {
-    asio::error_code ec(errno,
-        asio::error::get_system_category());
-    asio::detail::throw_error(ec, "/dev/poll");
-  }
-  return fd;
-}
-
-void dev_poll_reactor::do_add_timer_queue(timer_queue_base& queue)
-{
-  mutex::scoped_lock lock(mutex_);
-  timer_queues_.insert(&queue);
-}
-
-void dev_poll_reactor::do_remove_timer_queue(timer_queue_base& queue)
-{
-  mutex::scoped_lock lock(mutex_);
-  timer_queues_.erase(&queue);
-}
-
-int dev_poll_reactor::get_timeout(int msec)
-{
-  // By default we will wait no longer than 5 minutes. This will ensure that
-  // any changes to the system clock are detected after no longer than this.
-  const int max_msec = 5 * 60 * 1000;
-  return timer_queues_.wait_duration_msec(
-      (msec < 0 || max_msec < msec) ? max_msec : msec);
-}
-
-void dev_poll_reactor::cancel_ops_unlocked(socket_type descriptor,
-    const asio::error_code& ec)
-{
-  bool need_interrupt = false;
-  op_queue<operation> ops;
-  for (int i = 0; i < max_ops; ++i)
-    need_interrupt = op_queue_[i].cancel_operations(
-        descriptor, ops, ec) || need_interrupt;
-  scheduler_.post_deferred_completions(ops);
-  if (need_interrupt)
-    interrupter_.interrupt();
-}
-
-::pollfd& dev_poll_reactor::add_pending_event_change(int descriptor)
-{
-  hash_map<int, std::size_t>::iterator iter
-    = pending_event_change_index_.find(descriptor);
-  if (iter == pending_event_change_index_.end())
-  {
-    std::size_t index = pending_event_changes_.size();
-    pending_event_changes_.reserve(pending_event_changes_.size() + 1);
-    pending_event_change_index_.insert(std::make_pair(descriptor, index));
-    pending_event_changes_.push_back(::pollfd());
-    pending_event_changes_[index].fd = descriptor;
-    pending_event_changes_[index].revents = 0;
-    return pending_event_changes_[index];
-  }
-  else
-  {
-    return pending_event_changes_[iter->second];
-  }
-}
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // defined(ASIO_HAS_DEV_POLL)
-
-#endif // ASIO_DETAIL_IMPL_DEV_POLL_REACTOR_IPP
diff --git a/lib/asio/detail/impl/epoll_reactor.hpp b/lib/asio/detail/impl/epoll_reactor.hpp
deleted file mode 100644
index f990059..0000000
--- a/lib/asio/detail/impl/epoll_reactor.hpp
+++ /dev/null
@@ -1,89 +0,0 @@
-//
-// detail/impl/epoll_reactor.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_IMPL_EPOLL_REACTOR_HPP
-#define ASIO_DETAIL_IMPL_EPOLL_REACTOR_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#if defined(ASIO_HAS_EPOLL)
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-template <typename Time_Traits>
-void epoll_reactor::add_timer_queue(timer_queue<Time_Traits>& queue)
-{
-  do_add_timer_queue(queue);
-}
-
-template <typename Time_Traits>
-void epoll_reactor::remove_timer_queue(timer_queue<Time_Traits>& queue)
-{
-  do_remove_timer_queue(queue);
-}
-
-template <typename Time_Traits>
-void epoll_reactor::schedule_timer(timer_queue<Time_Traits>& queue,
-    const typename Time_Traits::time_type& time,
-    typename timer_queue<Time_Traits>::per_timer_data& timer, wait_op* op)
-{
-  mutex::scoped_lock lock(mutex_);
-
-  if (shutdown_)
-  {
-    scheduler_.post_immediate_completion(op, false);
-    return;
-  }
-
-  bool earliest = queue.enqueue_timer(time, timer, op);
-  scheduler_.work_started();
-  if (earliest)
-    update_timeout();
-}
-
-template <typename Time_Traits>
-std::size_t epoll_reactor::cancel_timer(timer_queue<Time_Traits>& queue,
-    typename timer_queue<Time_Traits>::per_timer_data& timer,
-    std::size_t max_cancelled)
-{
-  mutex::scoped_lock lock(mutex_);
-  op_queue<operation> ops;
-  std::size_t n = queue.cancel_timer(timer, ops, max_cancelled);
-  lock.unlock();
-  scheduler_.post_deferred_completions(ops);
-  return n;
-}
-
-template <typename Time_Traits>
-void epoll_reactor::move_timer(timer_queue<Time_Traits>& queue,
-    typename timer_queue<Time_Traits>::per_timer_data& target,
-    typename timer_queue<Time_Traits>::per_timer_data& source)
-{
-  mutex::scoped_lock lock(mutex_);
-  op_queue<operation> ops;
-  queue.cancel_timer(target, ops);
-  queue.move_timer(target, source);
-  lock.unlock();
-  scheduler_.post_deferred_completions(ops);
-}
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // defined(ASIO_HAS_EPOLL)
-
-#endif // ASIO_DETAIL_IMPL_EPOLL_REACTOR_HPP
diff --git a/lib/asio/detail/impl/epoll_reactor.ipp b/lib/asio/detail/impl/epoll_reactor.ipp
deleted file mode 100644
index 65584a4..0000000
--- a/lib/asio/detail/impl/epoll_reactor.ipp
+++ /dev/null
@@ -1,787 +0,0 @@
-//
-// detail/impl/epoll_reactor.ipp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_IMPL_EPOLL_REACTOR_IPP
-#define ASIO_DETAIL_IMPL_EPOLL_REACTOR_IPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-
-#if defined(ASIO_HAS_EPOLL)
-
-#include <cstddef>
-#include <sys/epoll.h>
-#include "asio/detail/epoll_reactor.hpp"
-#include "asio/detail/throw_error.hpp"
-#include "asio/error.hpp"
-
-#if defined(ASIO_HAS_TIMERFD)
-# include <sys/timerfd.h>
-#endif // defined(ASIO_HAS_TIMERFD)
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-epoll_reactor::epoll_reactor(asio::execution_context& ctx)
-  : execution_context_service_base<epoll_reactor>(ctx),
-    scheduler_(use_service<scheduler>(ctx)),
-    mutex_(ASIO_CONCURRENCY_HINT_IS_LOCKING(
-          REACTOR_REGISTRATION, scheduler_.concurrency_hint())),
-    interrupter_(),
-    epoll_fd_(do_epoll_create()),
-    timer_fd_(do_timerfd_create()),
-    shutdown_(false),
-    registered_descriptors_mutex_(mutex_.enabled())
-{
-  // Add the interrupter's descriptor to epoll.
-  epoll_event ev = { 0, { 0 } };
-  ev.events = EPOLLIN | EPOLLERR | EPOLLET;
-  ev.data.ptr = &interrupter_;
-  epoll_ctl(epoll_fd_, EPOLL_CTL_ADD, interrupter_.read_descriptor(), &ev);
-  interrupter_.interrupt();
-
-  // Add the timer descriptor to epoll.
-  if (timer_fd_ != -1)
-  {
-    ev.events = EPOLLIN | EPOLLERR;
-    ev.data.ptr = &timer_fd_;
-    epoll_ctl(epoll_fd_, EPOLL_CTL_ADD, timer_fd_, &ev);
-  }
-}
-
-epoll_reactor::~epoll_reactor()
-{
-  if (epoll_fd_ != -1)
-    close(epoll_fd_);
-  if (timer_fd_ != -1)
-    close(timer_fd_);
-}
-
-void epoll_reactor::shutdown()
-{
-  mutex::scoped_lock lock(mutex_);
-  shutdown_ = true;
-  lock.unlock();
-
-  op_queue<operation> ops;
-
-  while (descriptor_state* state = registered_descriptors_.first())
-  {
-    for (int i = 0; i < max_ops; ++i)
-      ops.push(state->op_queue_[i]);
-    state->shutdown_ = true;
-    registered_descriptors_.free(state);
-  }
-
-  timer_queues_.get_all_timers(ops);
-
-  scheduler_.abandon_operations(ops);
-}
-
-void epoll_reactor::notify_fork(
-    asio::execution_context::fork_event fork_ev)
-{
-  if (fork_ev == asio::execution_context::fork_child)
-  {
-    if (epoll_fd_ != -1)
-      ::close(epoll_fd_);
-    epoll_fd_ = -1;
-    epoll_fd_ = do_epoll_create();
-
-    if (timer_fd_ != -1)
-      ::close(timer_fd_);
-    timer_fd_ = -1;
-    timer_fd_ = do_timerfd_create();
-
-    interrupter_.recreate();
-
-    // Add the interrupter's descriptor to epoll.
-    epoll_event ev = { 0, { 0 } };
-    ev.events = EPOLLIN | EPOLLERR | EPOLLET;
-    ev.data.ptr = &interrupter_;
-    epoll_ctl(epoll_fd_, EPOLL_CTL_ADD, interrupter_.read_descriptor(), &ev);
-    interrupter_.interrupt();
-
-    // Add the timer descriptor to epoll.
-    if (timer_fd_ != -1)
-    {
-      ev.events = EPOLLIN | EPOLLERR;
-      ev.data.ptr = &timer_fd_;
-      epoll_ctl(epoll_fd_, EPOLL_CTL_ADD, timer_fd_, &ev);
-    }
-
-    update_timeout();
-
-    // Re-register all descriptors with epoll.
-    mutex::scoped_lock descriptors_lock(registered_descriptors_mutex_);
-    for (descriptor_state* state = registered_descriptors_.first();
-        state != 0; state = state->next_)
-    {
-      ev.events = state->registered_events_;
-      ev.data.ptr = state;
-      int result = epoll_ctl(epoll_fd_, EPOLL_CTL_ADD, state->descriptor_, &ev);
-      if (result != 0)
-      {
-        asio::error_code ec(errno,
-            asio::error::get_system_category());
-        asio::detail::throw_error(ec, "epoll re-registration");
-      }
-    }
-  }
-}
-
-void epoll_reactor::init_task()
-{
-  scheduler_.init_task();
-}
-
-int epoll_reactor::register_descriptor(socket_type descriptor,
-    epoll_reactor::per_descriptor_data& descriptor_data)
-{
-  descriptor_data = allocate_descriptor_state();
-
-  ASIO_HANDLER_REACTOR_REGISTRATION((
-        context(), static_cast<uintmax_t>(descriptor),
-        reinterpret_cast<uintmax_t>(descriptor_data)));
-
-  {
-    mutex::scoped_lock descriptor_lock(descriptor_data->mutex_);
-
-    descriptor_data->reactor_ = this;
-    descriptor_data->descriptor_ = descriptor;
-    descriptor_data->shutdown_ = false;
-    for (int i = 0; i < max_ops; ++i)
-      descriptor_data->try_speculative_[i] = true;
-  }
-
-  epoll_event ev = { 0, { 0 } };
-  ev.events = EPOLLIN | EPOLLERR | EPOLLHUP | EPOLLPRI | EPOLLET;
-  descriptor_data->registered_events_ = ev.events;
-  ev.data.ptr = descriptor_data;
-  int result = epoll_ctl(epoll_fd_, EPOLL_CTL_ADD, descriptor, &ev);
-  if (result != 0)
-  {
-    if (errno == EPERM)
-    {
-      // This file descriptor type is not supported by epoll. However, if it is
-      // a regular file then operations on it will not block. We will allow
-      // this descriptor to be used and fail later if an operation on it would
-      // otherwise require a trip through the reactor.
-      descriptor_data->registered_events_ = 0;
-      return 0;
-    }
-    return errno;
-  }
-
-  return 0;
-}
-
-int epoll_reactor::register_internal_descriptor(
-    int op_type, socket_type descriptor,
-    epoll_reactor::per_descriptor_data& descriptor_data, reactor_op* op)
-{
-  descriptor_data = allocate_descriptor_state();
-
-  ASIO_HANDLER_REACTOR_REGISTRATION((
-        context(), static_cast<uintmax_t>(descriptor),
-        reinterpret_cast<uintmax_t>(descriptor_data)));
-
-  {
-    mutex::scoped_lock descriptor_lock(descriptor_data->mutex_);
-
-    descriptor_data->reactor_ = this;
-    descriptor_data->descriptor_ = descriptor;
-    descriptor_data->shutdown_ = false;
-    descriptor_data->op_queue_[op_type].push(op);
-    for (int i = 0; i < max_ops; ++i)
-      descriptor_data->try_speculative_[i] = true;
-  }
-
-  epoll_event ev = { 0, { 0 } };
-  ev.events = EPOLLIN | EPOLLERR | EPOLLHUP | EPOLLPRI | EPOLLET;
-  descriptor_data->registered_events_ = ev.events;
-  ev.data.ptr = descriptor_data;
-  int result = epoll_ctl(epoll_fd_, EPOLL_CTL_ADD, descriptor, &ev);
-  if (result != 0)
-    return errno;
-
-  return 0;
-}
-
-void epoll_reactor::move_descriptor(socket_type,
-    epoll_reactor::per_descriptor_data& target_descriptor_data,
-    epoll_reactor::per_descriptor_data& source_descriptor_data)
-{
-  target_descriptor_data = source_descriptor_data;
-  source_descriptor_data = 0;
-}
-
-void epoll_reactor::start_op(int op_type, socket_type descriptor,
-    epoll_reactor::per_descriptor_data& descriptor_data, reactor_op* op,
-    bool is_continuation, bool allow_speculative)
-{
-  if (!descriptor_data)
-  {
-    op->ec_ = asio::error::bad_descriptor;
-    post_immediate_completion(op, is_continuation);
-    return;
-  }
-
-  mutex::scoped_lock descriptor_lock(descriptor_data->mutex_);
-
-  if (descriptor_data->shutdown_)
-  {
-    post_immediate_completion(op, is_continuation);
-    return;
-  }
-
-  if (descriptor_data->op_queue_[op_type].empty())
-  {
-    if (allow_speculative
-        && (op_type != read_op
-          || descriptor_data->op_queue_[except_op].empty()))
-    {
-      if (descriptor_data->try_speculative_[op_type])
-      {
-        if (reactor_op::status status = op->perform())
-        {
-          if (status == reactor_op::done_and_exhausted)
-            if (descriptor_data->registered_events_ != 0)
-              descriptor_data->try_speculative_[op_type] = false;
-          descriptor_lock.unlock();
-          scheduler_.post_immediate_completion(op, is_continuation);
-          return;
-        }
-      }
-
-      if (descriptor_data->registered_events_ == 0)
-      {
-        op->ec_ = asio::error::operation_not_supported;
-        scheduler_.post_immediate_completion(op, is_continuation);
-        return;
-      }
-
-      if (op_type == write_op)
-      {
-        if ((descriptor_data->registered_events_ & EPOLLOUT) == 0)
-        {
-          epoll_event ev = { 0, { 0 } };
-          ev.events = descriptor_data->registered_events_ | EPOLLOUT;
-          ev.data.ptr = descriptor_data;
-          if (epoll_ctl(epoll_fd_, EPOLL_CTL_MOD, descriptor, &ev) == 0)
-          {
-            descriptor_data->registered_events_ |= ev.events;
-          }
-          else
-          {
-            op->ec_ = asio::error_code(errno,
-                asio::error::get_system_category());
-            scheduler_.post_immediate_completion(op, is_continuation);
-            return;
-          }
-        }
-      }
-    }
-    else if (descriptor_data->registered_events_ == 0)
-    {
-      op->ec_ = asio::error::operation_not_supported;
-      scheduler_.post_immediate_completion(op, is_continuation);
-      return;
-    }
-    else
-    {
-      if (op_type == write_op)
-      {
-        descriptor_data->registered_events_ |= EPOLLOUT;
-      }
-
-      epoll_event ev = { 0, { 0 } };
-      ev.events = descriptor_data->registered_events_;
-      ev.data.ptr = descriptor_data;
-      epoll_ctl(epoll_fd_, EPOLL_CTL_MOD, descriptor, &ev);
-    }
-  }
-
-  descriptor_data->op_queue_[op_type].push(op);
-  scheduler_.work_started();
-}
-
-void epoll_reactor::cancel_ops(socket_type,
-    epoll_reactor::per_descriptor_data& descriptor_data)
-{
-  if (!descriptor_data)
-    return;
-
-  mutex::scoped_lock descriptor_lock(descriptor_data->mutex_);
-
-  op_queue<operation> ops;
-  for (int i = 0; i < max_ops; ++i)
-  {
-    while (reactor_op* op = descriptor_data->op_queue_[i].front())
-    {
-      op->ec_ = asio::error::operation_aborted;
-      descriptor_data->op_queue_[i].pop();
-      ops.push(op);
-    }
-  }
-
-  descriptor_lock.unlock();
-
-  scheduler_.post_deferred_completions(ops);
-}
-
-void epoll_reactor::deregister_descriptor(socket_type descriptor,
-    epoll_reactor::per_descriptor_data& descriptor_data, bool closing)
-{
-  if (!descriptor_data)
-    return;
-
-  mutex::scoped_lock descriptor_lock(descriptor_data->mutex_);
-
-  if (!descriptor_data->shutdown_)
-  {
-    if (closing)
-    {
-      // The descriptor will be automatically removed from the epoll set when
-      // it is closed.
-    }
-    else if (descriptor_data->registered_events_ != 0)
-    {
-      epoll_event ev = { 0, { 0 } };
-      epoll_ctl(epoll_fd_, EPOLL_CTL_DEL, descriptor, &ev);
-    }
-
-    op_queue<operation> ops;
-    for (int i = 0; i < max_ops; ++i)
-    {
-      while (reactor_op* op = descriptor_data->op_queue_[i].front())
-      {
-        op->ec_ = asio::error::operation_aborted;
-        descriptor_data->op_queue_[i].pop();
-        ops.push(op);
-      }
-    }
-
-    descriptor_data->descriptor_ = -1;
-    descriptor_data->shutdown_ = true;
-
-    descriptor_lock.unlock();
-
-    ASIO_HANDLER_REACTOR_DEREGISTRATION((
-          context(), static_cast<uintmax_t>(descriptor),
-          reinterpret_cast<uintmax_t>(descriptor_data)));
-
-    scheduler_.post_deferred_completions(ops);
-
-    // Leave descriptor_data set so that it will be freed by the subsequent
-    // call to cleanup_descriptor_data.
-  }
-  else
-  {
-    // We are shutting down, so prevent cleanup_descriptor_data from freeing
-    // the descriptor_data object and let the destructor free it instead.
-    descriptor_data = 0;
-  }
-}
-
-void epoll_reactor::deregister_internal_descriptor(socket_type descriptor,
-    epoll_reactor::per_descriptor_data& descriptor_data)
-{
-  if (!descriptor_data)
-    return;
-
-  mutex::scoped_lock descriptor_lock(descriptor_data->mutex_);
-
-  if (!descriptor_data->shutdown_)
-  {
-    epoll_event ev = { 0, { 0 } };
-    epoll_ctl(epoll_fd_, EPOLL_CTL_DEL, descriptor, &ev);
-
-    op_queue<operation> ops;
-    for (int i = 0; i < max_ops; ++i)
-      ops.push(descriptor_data->op_queue_[i]);
-
-    descriptor_data->descriptor_ = -1;
-    descriptor_data->shutdown_ = true;
-
-    descriptor_lock.unlock();
-
-    ASIO_HANDLER_REACTOR_DEREGISTRATION((
-          context(), static_cast<uintmax_t>(descriptor),
-          reinterpret_cast<uintmax_t>(descriptor_data)));
-
-    // Leave descriptor_data set so that it will be freed by the subsequent
-    // call to cleanup_descriptor_data.
-  }
-  else
-  {
-    // We are shutting down, so prevent cleanup_descriptor_data from freeing
-    // the descriptor_data object and let the destructor free it instead.
-    descriptor_data = 0;
-  }
-}
-
-void epoll_reactor::cleanup_descriptor_data(
-    per_descriptor_data& descriptor_data)
-{
-  if (descriptor_data)
-  {
-    free_descriptor_state(descriptor_data);
-    descriptor_data = 0;
-  }
-}
-
-void epoll_reactor::run(long usec, op_queue<operation>& ops)
-{
-  // This code relies on the fact that the scheduler queues the reactor task
-  // behind all descriptor operations generated by this function. This means,
-  // that by the time we reach this point, any previously returned descriptor
-  // operations have already been dequeued. Therefore it is now safe for us to
-  // reuse and return them for the scheduler to queue again.
-
-  // Calculate timeout. Check the timer queues only if timerfd is not in use.
-  int timeout;
-  if (usec == 0)
-    timeout = 0;
-  else
-  {
-    timeout = (usec < 0) ? -1 : ((usec - 1) / 1000 + 1);
-    if (timer_fd_ == -1)
-    {
-      mutex::scoped_lock lock(mutex_);
-      timeout = get_timeout(timeout);
-    }
-  }
-
-  // Block on the epoll descriptor.
-  epoll_event events[128];
-  int num_events = epoll_wait(epoll_fd_, events, 128, timeout);
-
-#if defined(ASIO_ENABLE_HANDLER_TRACKING)
-  // Trace the waiting events.
-  for (int i = 0; i < num_events; ++i)
-  {
-    void* ptr = events[i].data.ptr;
-    if (ptr == &interrupter_)
-    {
-      // Ignore.
-    }
-# if defined(ASIO_HAS_TIMERFD)
-    else if (ptr == &timer_fd_)
-    {
-      // Ignore.
-    }
-# endif // defined(ASIO_HAS_TIMERFD)
-    else
-    {
-      unsigned event_mask = 0;
-      if ((events[i].events & EPOLLIN) != 0)
-        event_mask |= ASIO_HANDLER_REACTOR_READ_EVENT;
-      if ((events[i].events & EPOLLOUT))
-        event_mask |= ASIO_HANDLER_REACTOR_WRITE_EVENT;
-      if ((events[i].events & (EPOLLERR | EPOLLHUP)) != 0)
-        event_mask |= ASIO_HANDLER_REACTOR_ERROR_EVENT;
-      ASIO_HANDLER_REACTOR_EVENTS((context(),
-            reinterpret_cast<uintmax_t>(ptr), event_mask));
-    }
-  }
-#endif // defined(ASIO_ENABLE_HANDLER_TRACKING)
-
-#if defined(ASIO_HAS_TIMERFD)
-  bool check_timers = (timer_fd_ == -1);
-#else // defined(ASIO_HAS_TIMERFD)
-  bool check_timers = true;
-#endif // defined(ASIO_HAS_TIMERFD)
-
-  // Dispatch the waiting events.
-  for (int i = 0; i < num_events; ++i)
-  {
-    void* ptr = events[i].data.ptr;
-    if (ptr == &interrupter_)
-    {
-      // No need to reset the interrupter since we're leaving the descriptor
-      // in a ready-to-read state and relying on edge-triggered notifications
-      // to make it so that we only get woken up when the descriptor's epoll
-      // registration is updated.
-
-#if defined(ASIO_HAS_TIMERFD)
-      if (timer_fd_ == -1)
-        check_timers = true;
-#else // defined(ASIO_HAS_TIMERFD)
-      check_timers = true;
-#endif // defined(ASIO_HAS_TIMERFD)
-    }
-#if defined(ASIO_HAS_TIMERFD)
-    else if (ptr == &timer_fd_)
-    {
-      check_timers = true;
-    }
-#endif // defined(ASIO_HAS_TIMERFD)
-    else
-    {
-      // The descriptor operation doesn't count as work in and of itself, so we
-      // don't call work_started() here. This still allows the scheduler to
-      // stop if the only remaining operations are descriptor operations.
-      descriptor_state* descriptor_data = static_cast<descriptor_state*>(ptr);
-      if (!ops.is_enqueued(descriptor_data))
-      {
-        descriptor_data->set_ready_events(events[i].events);
-        ops.push(descriptor_data);
-      }
-      else
-      {
-        descriptor_data->add_ready_events(events[i].events);
-      }
-    }
-  }
-
-  if (check_timers)
-  {
-    mutex::scoped_lock common_lock(mutex_);
-    timer_queues_.get_ready_timers(ops);
-
-#if defined(ASIO_HAS_TIMERFD)
-    if (timer_fd_ != -1)
-    {
-      itimerspec new_timeout;
-      itimerspec old_timeout;
-      int flags = get_timeout(new_timeout);
-      timerfd_settime(timer_fd_, flags, &new_timeout, &old_timeout);
-    }
-#endif // defined(ASIO_HAS_TIMERFD)
-  }
-}
-
-void epoll_reactor::interrupt()
-{
-  epoll_event ev = { 0, { 0 } };
-  ev.events = EPOLLIN | EPOLLERR | EPOLLET;
-  ev.data.ptr = &interrupter_;
-  epoll_ctl(epoll_fd_, EPOLL_CTL_MOD, interrupter_.read_descriptor(), &ev);
-}
-
-int epoll_reactor::do_epoll_create()
-{
-#if defined(EPOLL_CLOEXEC)
-  int fd = epoll_create1(EPOLL_CLOEXEC);
-#else // defined(EPOLL_CLOEXEC)
-  int fd = -1;
-  errno = EINVAL;
-#endif // defined(EPOLL_CLOEXEC)
-
-  if (fd == -1 && (errno == EINVAL || errno == ENOSYS))
-  {
-    fd = epoll_create(epoll_size);
-    if (fd != -1)
-      ::fcntl(fd, F_SETFD, FD_CLOEXEC);
-  }
-
-  if (fd == -1)
-  {
-    asio::error_code ec(errno,
-        asio::error::get_system_category());
-    asio::detail::throw_error(ec, "epoll");
-  }
-
-  return fd;
-}
-
-int epoll_reactor::do_timerfd_create()
-{
-#if defined(ASIO_HAS_TIMERFD)
-# if defined(TFD_CLOEXEC)
-  int fd = timerfd_create(CLOCK_MONOTONIC, TFD_CLOEXEC);
-# else // defined(TFD_CLOEXEC)
-  int fd = -1;
-  errno = EINVAL;
-# endif // defined(TFD_CLOEXEC)
-
-  if (fd == -1 && errno == EINVAL)
-  {
-    fd = timerfd_create(CLOCK_MONOTONIC, 0);
-    if (fd != -1)
-      ::fcntl(fd, F_SETFD, FD_CLOEXEC);
-  }
-
-  return fd;
-#else // defined(ASIO_HAS_TIMERFD)
-  return -1;
-#endif // defined(ASIO_HAS_TIMERFD)
-}
-
-epoll_reactor::descriptor_state* epoll_reactor::allocate_descriptor_state()
-{
-  mutex::scoped_lock descriptors_lock(registered_descriptors_mutex_);
-  return registered_descriptors_.alloc(ASIO_CONCURRENCY_HINT_IS_LOCKING(
-        REACTOR_IO, scheduler_.concurrency_hint()));
-}
-
-void epoll_reactor::free_descriptor_state(epoll_reactor::descriptor_state* s)
-{
-  mutex::scoped_lock descriptors_lock(registered_descriptors_mutex_);
-  registered_descriptors_.free(s);
-}
-
-void epoll_reactor::do_add_timer_queue(timer_queue_base& queue)
-{
-  mutex::scoped_lock lock(mutex_);
-  timer_queues_.insert(&queue);
-}
-
-void epoll_reactor::do_remove_timer_queue(timer_queue_base& queue)
-{
-  mutex::scoped_lock lock(mutex_);
-  timer_queues_.erase(&queue);
-}
-
-void epoll_reactor::update_timeout()
-{
-#if defined(ASIO_HAS_TIMERFD)
-  if (timer_fd_ != -1)
-  {
-    itimerspec new_timeout;
-    itimerspec old_timeout;
-    int flags = get_timeout(new_timeout);
-    timerfd_settime(timer_fd_, flags, &new_timeout, &old_timeout);
-    return;
-  }
-#endif // defined(ASIO_HAS_TIMERFD)
-  interrupt();
-}
-
-int epoll_reactor::get_timeout(int msec)
-{
-  // By default we will wait no longer than 5 minutes. This will ensure that
-  // any changes to the system clock are detected after no longer than this.
-  const int max_msec = 5 * 60 * 1000;
-  return timer_queues_.wait_duration_msec(
-      (msec < 0 || max_msec < msec) ? max_msec : msec);
-}
-
-#if defined(ASIO_HAS_TIMERFD)
-int epoll_reactor::get_timeout(itimerspec& ts)
-{
-  ts.it_interval.tv_sec = 0;
-  ts.it_interval.tv_nsec = 0;
-
-  long usec = timer_queues_.wait_duration_usec(5 * 60 * 1000 * 1000);
-  ts.it_value.tv_sec = usec / 1000000;
-  ts.it_value.tv_nsec = usec ? (usec % 1000000) * 1000 : 1;
-
-  return usec ? 0 : TFD_TIMER_ABSTIME;
-}
-#endif // defined(ASIO_HAS_TIMERFD)
-
-struct epoll_reactor::perform_io_cleanup_on_block_exit
-{
-  explicit perform_io_cleanup_on_block_exit(epoll_reactor* r)
-    : reactor_(r), first_op_(0)
-  {
-  }
-
-  ~perform_io_cleanup_on_block_exit()
-  {
-    if (first_op_)
-    {
-      // Post the remaining completed operations for invocation.
-      if (!ops_.empty())
-        reactor_->scheduler_.post_deferred_completions(ops_);
-
-      // A user-initiated operation has completed, but there's no need to
-      // explicitly call work_finished() here. Instead, we'll take advantage of
-      // the fact that the scheduler will call work_finished() once we return.
-    }
-    else
-    {
-      // No user-initiated operations have completed, so we need to compensate
-      // for the work_finished() call that the scheduler will make once this
-      // operation returns.
-      reactor_->scheduler_.compensating_work_started();
-    }
-  }
-
-  epoll_reactor* reactor_;
-  op_queue<operation> ops_;
-  operation* first_op_;
-};
-
-epoll_reactor::descriptor_state::descriptor_state(bool locking)
-  : operation(&epoll_reactor::descriptor_state::do_complete),
-    mutex_(locking)
-{
-}
-
-operation* epoll_reactor::descriptor_state::perform_io(uint32_t events)
-{
-  mutex_.lock();
-  perform_io_cleanup_on_block_exit io_cleanup(reactor_);
-  mutex::scoped_lock descriptor_lock(mutex_, mutex::scoped_lock::adopt_lock);
-
-  // Exception operations must be processed first to ensure that any
-  // out-of-band data is read before normal data.
-  static const int flag[max_ops] = { EPOLLIN, EPOLLOUT, EPOLLPRI };
-  for (int j = max_ops - 1; j >= 0; --j)
-  {
-    if (events & (flag[j] | EPOLLERR | EPOLLHUP))
-    {
-      try_speculative_[j] = true;
-      while (reactor_op* op = op_queue_[j].front())
-      {
-        if (reactor_op::status status = op->perform())
-        {
-          op_queue_[j].pop();
-          io_cleanup.ops_.push(op);
-          if (status == reactor_op::done_and_exhausted)
-          {
-            try_speculative_[j] = false;
-            break;
-          }
-        }
-        else
-          break;
-      }
-    }
-  }
-
-  // The first operation will be returned for completion now. The others will
-  // be posted for later by the io_cleanup object's destructor.
-  io_cleanup.first_op_ = io_cleanup.ops_.front();
-  io_cleanup.ops_.pop();
-  return io_cleanup.first_op_;
-}
-
-void epoll_reactor::descriptor_state::do_complete(
-    void* owner, operation* base,
-    const asio::error_code& ec, std::size_t bytes_transferred)
-{
-  if (owner)
-  {
-    descriptor_state* descriptor_data = static_cast<descriptor_state*>(base);
-    uint32_t events = static_cast<uint32_t>(bytes_transferred);
-    if (operation* op = descriptor_data->perform_io(events))
-    {
-      op->complete(owner, ec, 0);
-    }
-  }
-}
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // defined(ASIO_HAS_EPOLL)
-
-#endif // ASIO_DETAIL_IMPL_EPOLL_REACTOR_IPP
diff --git a/lib/asio/detail/impl/eventfd_select_interrupter.ipp b/lib/asio/detail/impl/eventfd_select_interrupter.ipp
deleted file mode 100644
index c56e89a..0000000
--- a/lib/asio/detail/impl/eventfd_select_interrupter.ipp
+++ /dev/null
@@ -1,165 +0,0 @@
-//
-// detail/impl/eventfd_select_interrupter.ipp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-// Copyright (c) 2008 Roelof Naude (roelof.naude at gmail dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_IMPL_EVENTFD_SELECT_INTERRUPTER_IPP
-#define ASIO_DETAIL_IMPL_EVENTFD_SELECT_INTERRUPTER_IPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-
-#if defined(ASIO_HAS_EVENTFD)
-
-#include <sys/stat.h>
-#include <sys/types.h>
-#include <fcntl.h>
-#if __GLIBC__ == 2 && __GLIBC_MINOR__ < 8
-# include <asm/unistd.h>
-#else // __GLIBC__ == 2 && __GLIBC_MINOR__ < 8
-# include <sys/eventfd.h>
-#endif // __GLIBC__ == 2 && __GLIBC_MINOR__ < 8
-#include "asio/detail/cstdint.hpp"
-#include "asio/detail/eventfd_select_interrupter.hpp"
-#include "asio/detail/throw_error.hpp"
-#include "asio/error.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-eventfd_select_interrupter::eventfd_select_interrupter()
-{
-  open_descriptors();
-}
-
-void eventfd_select_interrupter::open_descriptors()
-{
-#if __GLIBC__ == 2 && __GLIBC_MINOR__ < 8
-  write_descriptor_ = read_descriptor_ = syscall(__NR_eventfd, 0);
-  if (read_descriptor_ != -1)
-  {
-    ::fcntl(read_descriptor_, F_SETFL, O_NONBLOCK);
-    ::fcntl(read_descriptor_, F_SETFD, FD_CLOEXEC);
-  }
-#else // __GLIBC__ == 2 && __GLIBC_MINOR__ < 8
-# if defined(EFD_CLOEXEC) && defined(EFD_NONBLOCK)
-  write_descriptor_ = read_descriptor_ =
-    ::eventfd(0, EFD_CLOEXEC | EFD_NONBLOCK);
-# else // defined(EFD_CLOEXEC) && defined(EFD_NONBLOCK)
-  errno = EINVAL;
-  write_descriptor_ = read_descriptor_ = -1;
-# endif // defined(EFD_CLOEXEC) && defined(EFD_NONBLOCK)
-  if (read_descriptor_ == -1 && errno == EINVAL)
-  {
-    write_descriptor_ = read_descriptor_ = ::eventfd(0, 0);
-    if (read_descriptor_ != -1)
-    {
-      ::fcntl(read_descriptor_, F_SETFL, O_NONBLOCK);
-      ::fcntl(read_descriptor_, F_SETFD, FD_CLOEXEC);
-    }
-  }
-#endif // __GLIBC__ == 2 && __GLIBC_MINOR__ < 8
-
-  if (read_descriptor_ == -1)
-  {
-    int pipe_fds[2];
-    if (pipe(pipe_fds) == 0)
-    {
-      read_descriptor_ = pipe_fds[0];
-      ::fcntl(read_descriptor_, F_SETFL, O_NONBLOCK);
-      ::fcntl(read_descriptor_, F_SETFD, FD_CLOEXEC);
-      write_descriptor_ = pipe_fds[1];
-      ::fcntl(write_descriptor_, F_SETFL, O_NONBLOCK);
-      ::fcntl(write_descriptor_, F_SETFD, FD_CLOEXEC);
-    }
-    else
-    {
-      asio::error_code ec(errno,
-          asio::error::get_system_category());
-      asio::detail::throw_error(ec, "eventfd_select_interrupter");
-    }
-  }
-}
-
-eventfd_select_interrupter::~eventfd_select_interrupter()
-{
-  close_descriptors();
-}
-
-void eventfd_select_interrupter::close_descriptors()
-{
-  if (write_descriptor_ != -1 && write_descriptor_ != read_descriptor_)
-    ::close(write_descriptor_);
-  if (read_descriptor_ != -1)
-    ::close(read_descriptor_);
-}
-
-void eventfd_select_interrupter::recreate()
-{
-  close_descriptors();
-
-  write_descriptor_ = -1;
-  read_descriptor_ = -1;
-
-  open_descriptors();
-}
-
-void eventfd_select_interrupter::interrupt()
-{
-  uint64_t counter(1UL);
-  int result = ::write(write_descriptor_, &counter, sizeof(uint64_t));
-  (void)result;
-}
-
-bool eventfd_select_interrupter::reset()
-{
-  if (write_descriptor_ == read_descriptor_)
-  {
-    for (;;)
-    {
-      // Only perform one read. The kernel maintains an atomic counter.
-      uint64_t counter(0);
-      errno = 0;
-      int bytes_read = ::read(read_descriptor_, &counter, sizeof(uint64_t));
-      if (bytes_read < 0 && errno == EINTR)
-        continue;
-      bool was_interrupted = (bytes_read > 0);
-      return was_interrupted;
-    }
-  }
-  else
-  {
-    for (;;)
-    {
-      // Clear all data from the pipe.
-      char data[1024];
-      int bytes_read = ::read(read_descriptor_, data, sizeof(data));
-      if (bytes_read < 0 && errno == EINTR)
-        continue;
-      bool was_interrupted = (bytes_read > 0);
-      while (bytes_read == sizeof(data))
-        bytes_read = ::read(read_descriptor_, data, sizeof(data));
-      return was_interrupted;
-    }
-  }
-}
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // defined(ASIO_HAS_EVENTFD)
-
-#endif // ASIO_DETAIL_IMPL_EVENTFD_SELECT_INTERRUPTER_IPP
diff --git a/lib/asio/detail/impl/handler_tracking.ipp b/lib/asio/detail/impl/handler_tracking.ipp
deleted file mode 100644
index 5a4ff6f..0000000
--- a/lib/asio/detail/impl/handler_tracking.ipp
+++ /dev/null
@@ -1,358 +0,0 @@
-//
-// detail/impl/handler_tracking.ipp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_IMPL_HANDLER_TRACKING_IPP
-#define ASIO_DETAIL_IMPL_HANDLER_TRACKING_IPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-
-#if defined(ASIO_CUSTOM_HANDLER_TRACKING)
-
-// The handler tracking implementation is provided by the user-specified header.
-
-#elif defined(ASIO_ENABLE_HANDLER_TRACKING)
-
-#include <cstdarg>
-#include <cstdio>
-#include "asio/detail/handler_tracking.hpp"
-
-#if defined(ASIO_HAS_BOOST_DATE_TIME)
-# include "asio/time_traits.hpp"
-#elif defined(ASIO_HAS_CHRONO)
-# include "asio/detail/chrono.hpp"
-# include "asio/detail/chrono_time_traits.hpp"
-# include "asio/wait_traits.hpp"
-#endif // defined(ASIO_HAS_BOOST_DATE_TIME)
-
-#if defined(ASIO_WINDOWS_RUNTIME)
-# include "asio/detail/socket_types.hpp"
-#elif !defined(ASIO_WINDOWS)
-# include <unistd.h>
-#endif // !defined(ASIO_WINDOWS)
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-struct handler_tracking_timestamp
-{
-  uint64_t seconds;
-  uint64_t microseconds;
-
-  handler_tracking_timestamp()
-  {
-#if defined(ASIO_HAS_BOOST_DATE_TIME)
-    boost::posix_time::ptime epoch(boost::gregorian::date(1970, 1, 1));
-    boost::posix_time::time_duration now =
-      boost::posix_time::microsec_clock::universal_time() - epoch;
-#elif defined(ASIO_HAS_CHRONO)
-    typedef chrono_time_traits<chrono::system_clock,
-        asio::wait_traits<chrono::system_clock> > traits_helper;
-    traits_helper::posix_time_duration now(
-        chrono::system_clock::now().time_since_epoch());
-#endif
-    seconds = static_cast<uint64_t>(now.total_seconds());
-    microseconds = static_cast<uint64_t>(now.total_microseconds() % 1000000);
-  }
-};
-
-struct handler_tracking::tracking_state
-{
-  static_mutex mutex_;
-  uint64_t next_id_;
-  tss_ptr<completion>* current_completion_;
-};
-
-handler_tracking::tracking_state* handler_tracking::get_state()
-{
-  static tracking_state state = { ASIO_STATIC_MUTEX_INIT, 1, 0 };
-  return &state;
-}
-
-void handler_tracking::init()
-{
-  static tracking_state* state = get_state();
-
-  state->mutex_.init();
-
-  static_mutex::scoped_lock lock(state->mutex_);
-  if (state->current_completion_ == 0)
-    state->current_completion_ = new tss_ptr<completion>;
-}
-
-void handler_tracking::creation(execution_context&,
-    handler_tracking::tracked_handler& h,
-    const char* object_type, void* object,
-    uintmax_t /*native_handle*/, const char* op_name)
-{
-  static tracking_state* state = get_state();
-
-  static_mutex::scoped_lock lock(state->mutex_);
-  h.id_ = state->next_id_++;
-  lock.unlock();
-
-  handler_tracking_timestamp timestamp;
-
-  uint64_t current_id = 0;
-  if (completion* current_completion = *state->current_completion_)
-    current_id = current_completion->id_;
-
-  write_line(
-#if defined(ASIO_WINDOWS)
-      "@asio|%I64u.%06I64u|%I64u*%I64u|%.20s@%p.%.50s\n",
-#else // defined(ASIO_WINDOWS)
-      "@asio|%llu.%06llu|%llu*%llu|%.20s@%p.%.50s\n",
-#endif // defined(ASIO_WINDOWS)
-      timestamp.seconds, timestamp.microseconds,
-      current_id, h.id_, object_type, object, op_name);
-}
-
-handler_tracking::completion::completion(
-    const handler_tracking::tracked_handler& h)
-  : id_(h.id_),
-    invoked_(false),
-    next_(*get_state()->current_completion_)
-{
-  *get_state()->current_completion_ = this;
-}
-
-handler_tracking::completion::~completion()
-{
-  if (id_)
-  {
-    handler_tracking_timestamp timestamp;
-
-    write_line(
-#if defined(ASIO_WINDOWS)
-        "@asio|%I64u.%06I64u|%c%I64u|\n",
-#else // defined(ASIO_WINDOWS)
-        "@asio|%llu.%06llu|%c%llu|\n",
-#endif // defined(ASIO_WINDOWS)
-        timestamp.seconds, timestamp.microseconds,
-        invoked_ ? '!' : '~', id_);
-  }
-
-  *get_state()->current_completion_ = next_;
-}
-
-void handler_tracking::completion::invocation_begin()
-{
-  handler_tracking_timestamp timestamp;
-
-  write_line(
-#if defined(ASIO_WINDOWS)
-      "@asio|%I64u.%06I64u|>%I64u|\n",
-#else // defined(ASIO_WINDOWS)
-      "@asio|%llu.%06llu|>%llu|\n",
-#endif // defined(ASIO_WINDOWS)
-      timestamp.seconds, timestamp.microseconds, id_);
-
-  invoked_ = true;
-}
-
-void handler_tracking::completion::invocation_begin(
-    const asio::error_code& ec)
-{
-  handler_tracking_timestamp timestamp;
-
-  write_line(
-#if defined(ASIO_WINDOWS)
-      "@asio|%I64u.%06I64u|>%I64u|ec=%.20s:%d\n",
-#else // defined(ASIO_WINDOWS)
-      "@asio|%llu.%06llu|>%llu|ec=%.20s:%d\n",
-#endif // defined(ASIO_WINDOWS)
-      timestamp.seconds, timestamp.microseconds,
-      id_, ec.category().name(), ec.value());
-
-  invoked_ = true;
-}
-
-void handler_tracking::completion::invocation_begin(
-    const asio::error_code& ec, std::size_t bytes_transferred)
-{
-  handler_tracking_timestamp timestamp;
-
-  write_line(
-#if defined(ASIO_WINDOWS)
-      "@asio|%I64u.%06I64u|>%I64u|ec=%.20s:%d,bytes_transferred=%I64u\n",
-#else // defined(ASIO_WINDOWS)
-      "@asio|%llu.%06llu|>%llu|ec=%.20s:%d,bytes_transferred=%llu\n",
-#endif // defined(ASIO_WINDOWS)
-      timestamp.seconds, timestamp.microseconds,
-      id_, ec.category().name(), ec.value(),
-      static_cast<uint64_t>(bytes_transferred));
-
-  invoked_ = true;
-}
-
-void handler_tracking::completion::invocation_begin(
-    const asio::error_code& ec, int signal_number)
-{
-  handler_tracking_timestamp timestamp;
-
-  write_line(
-#if defined(ASIO_WINDOWS)
-      "@asio|%I64u.%06I64u|>%I64u|ec=%.20s:%d,signal_number=%d\n",
-#else // defined(ASIO_WINDOWS)
-      "@asio|%llu.%06llu|>%llu|ec=%.20s:%d,signal_number=%d\n",
-#endif // defined(ASIO_WINDOWS)
-      timestamp.seconds, timestamp.microseconds,
-      id_, ec.category().name(), ec.value(), signal_number);
-
-  invoked_ = true;
-}
-
-void handler_tracking::completion::invocation_begin(
-    const asio::error_code& ec, const char* arg)
-{
-  handler_tracking_timestamp timestamp;
-
-  write_line(
-#if defined(ASIO_WINDOWS)
-      "@asio|%I64u.%06I64u|>%I64u|ec=%.20s:%d,%.50s\n",
-#else // defined(ASIO_WINDOWS)
-      "@asio|%llu.%06llu|>%llu|ec=%.20s:%d,%.50s\n",
-#endif // defined(ASIO_WINDOWS)
-      timestamp.seconds, timestamp.microseconds,
-      id_, ec.category().name(), ec.value(), arg);
-
-  invoked_ = true;
-}
-
-void handler_tracking::completion::invocation_end()
-{
-  if (id_)
-  {
-    handler_tracking_timestamp timestamp;
-
-    write_line(
-#if defined(ASIO_WINDOWS)
-        "@asio|%I64u.%06I64u|<%I64u|\n",
-#else // defined(ASIO_WINDOWS)
-        "@asio|%llu.%06llu|<%llu|\n",
-#endif // defined(ASIO_WINDOWS)
-        timestamp.seconds, timestamp.microseconds, id_);
-
-    id_ = 0;
-  }
-}
-
-void handler_tracking::operation(execution_context&,
-    const char* object_type, void* object,
-    uintmax_t /*native_handle*/, const char* op_name)
-{
-  static tracking_state* state = get_state();
-
-  handler_tracking_timestamp timestamp;
-
-  unsigned long long current_id = 0;
-  if (completion* current_completion = *state->current_completion_)
-    current_id = current_completion->id_;
-
-  write_line(
-#if defined(ASIO_WINDOWS)
-      "@asio|%I64u.%06I64u|%I64u|%.20s@%p.%.50s\n",
-#else // defined(ASIO_WINDOWS)
-      "@asio|%llu.%06llu|%llu|%.20s@%p.%.50s\n",
-#endif // defined(ASIO_WINDOWS)
-      timestamp.seconds, timestamp.microseconds,
-      current_id, object_type, object, op_name);
-}
-
-void handler_tracking::reactor_registration(execution_context& /*context*/,
-    uintmax_t /*native_handle*/, uintmax_t /*registration*/)
-{
-}
-
-void handler_tracking::reactor_deregistration(execution_context& /*context*/,
-    uintmax_t /*native_handle*/, uintmax_t /*registration*/)
-{
-}
-
-void handler_tracking::reactor_events(execution_context& /*context*/,
-    uintmax_t /*native_handle*/, unsigned /*events*/)
-{
-}
-
-void handler_tracking::reactor_operation(
-    const tracked_handler& h, const char* op_name,
-    const asio::error_code& ec)
-{
-  handler_tracking_timestamp timestamp;
-
-  write_line(
-#if defined(ASIO_WINDOWS)
-      "@asio|%I64u.%06I64u|.%I64u|%s,ec=%.20s:%d\n",
-#else // defined(ASIO_WINDOWS)
-      "@asio|%llu.%06llu|.%llu|%s,ec=%.20s:%d\n",
-#endif // defined(ASIO_WINDOWS)
-      timestamp.seconds, timestamp.microseconds,
-      h.id_, op_name, ec.category().name(), ec.value());
-}
-
-void handler_tracking::reactor_operation(
-    const tracked_handler& h, const char* op_name,
-    const asio::error_code& ec, std::size_t bytes_transferred)
-{
-  handler_tracking_timestamp timestamp;
-
-  write_line(
-#if defined(ASIO_WINDOWS)
-      "@asio|%I64u.%06I64u|.%I64u|%s,ec=%.20s:%d,bytes_transferred=%I64u\n",
-#else // defined(ASIO_WINDOWS)
-      "@asio|%llu.%06llu|.%llu|%s,ec=%.20s:%d,bytes_transferred=%llu\n",
-#endif // defined(ASIO_WINDOWS)
-      timestamp.seconds, timestamp.microseconds,
-      h.id_, op_name, ec.category().name(), ec.value(),
-      static_cast<uint64_t>(bytes_transferred));
-}
-
-void handler_tracking::write_line(const char* format, ...)
-{
-  using namespace std; // For sprintf (or equivalent).
-
-  va_list args;
-  va_start(args, format);
-
-  char line[256] = "";
-#if defined(ASIO_HAS_SECURE_RTL)
-  int length = vsprintf_s(line, sizeof(line), format, args);
-#else // defined(ASIO_HAS_SECURE_RTL)
-  int length = vsprintf(line, format, args);
-#endif // defined(ASIO_HAS_SECURE_RTL)
-
-  va_end(args);
-
-#if defined(ASIO_WINDOWS_RUNTIME)
-  wchar_t wline[256] = L"";
-  mbstowcs_s(0, wline, sizeof(wline) / sizeof(wchar_t), line, length);
-  ::OutputDebugStringW(wline);
-#elif defined(ASIO_WINDOWS)
-  HANDLE stderr_handle = ::GetStdHandle(STD_ERROR_HANDLE);
-  DWORD bytes_written = 0;
-  ::WriteFile(stderr_handle, line, length, &bytes_written, 0);
-#else // defined(ASIO_WINDOWS)
-  ::write(STDERR_FILENO, line, length);
-#endif // defined(ASIO_WINDOWS)
-}
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // defined(ASIO_ENABLE_HANDLER_TRACKING)
-
-#endif // ASIO_DETAIL_IMPL_HANDLER_TRACKING_IPP
diff --git a/lib/asio/detail/impl/kqueue_reactor.hpp b/lib/asio/detail/impl/kqueue_reactor.hpp
deleted file mode 100644
index 136d167..0000000
--- a/lib/asio/detail/impl/kqueue_reactor.hpp
+++ /dev/null
@@ -1,93 +0,0 @@
-//
-// detail/impl/kqueue_reactor.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-// Copyright (c) 2005 Stefan Arentz (stefan at soze dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_IMPL_KQUEUE_REACTOR_HPP
-#define ASIO_DETAIL_IMPL_KQUEUE_REACTOR_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-
-#if defined(ASIO_HAS_KQUEUE)
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-template <typename Time_Traits>
-void kqueue_reactor::add_timer_queue(timer_queue<Time_Traits>& queue)
-{
-  do_add_timer_queue(queue);
-}
-
-// Remove a timer queue from the reactor.
-template <typename Time_Traits>
-void kqueue_reactor::remove_timer_queue(timer_queue<Time_Traits>& queue)
-{
-  do_remove_timer_queue(queue);
-}
-
-template <typename Time_Traits>
-void kqueue_reactor::schedule_timer(timer_queue<Time_Traits>& queue,
-    const typename Time_Traits::time_type& time,
-    typename timer_queue<Time_Traits>::per_timer_data& timer, wait_op* op)
-{
-  mutex::scoped_lock lock(mutex_);
-
-  if (shutdown_)
-  {
-    scheduler_.post_immediate_completion(op, false);
-    return;
-  }
-
-  bool earliest = queue.enqueue_timer(time, timer, op);
-  scheduler_.work_started();
-  if (earliest)
-    interrupt();
-}
-
-template <typename Time_Traits>
-std::size_t kqueue_reactor::cancel_timer(timer_queue<Time_Traits>& queue,
-    typename timer_queue<Time_Traits>::per_timer_data& timer,
-    std::size_t max_cancelled)
-{
-  mutex::scoped_lock lock(mutex_);
-  op_queue<operation> ops;
-  std::size_t n = queue.cancel_timer(timer, ops, max_cancelled);
-  lock.unlock();
-  scheduler_.post_deferred_completions(ops);
-  return n;
-}
-
-template <typename Time_Traits>
-void kqueue_reactor::move_timer(timer_queue<Time_Traits>& queue,
-    typename timer_queue<Time_Traits>::per_timer_data& target,
-    typename timer_queue<Time_Traits>::per_timer_data& source)
-{
-  mutex::scoped_lock lock(mutex_);
-  op_queue<operation> ops;
-  queue.cancel_timer(target, ops);
-  queue.move_timer(target, source);
-  lock.unlock();
-  scheduler_.post_deferred_completions(ops);
-}
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // defined(ASIO_HAS_KQUEUE)
-
-#endif // ASIO_DETAIL_IMPL_KQUEUE_REACTOR_HPP
diff --git a/lib/asio/detail/impl/kqueue_reactor.ipp b/lib/asio/detail/impl/kqueue_reactor.ipp
deleted file mode 100644
index 73986e0..0000000
--- a/lib/asio/detail/impl/kqueue_reactor.ipp
+++ /dev/null
@@ -1,566 +0,0 @@
-//
-// detail/impl/kqueue_reactor.ipp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-// Copyright (c) 2005 Stefan Arentz (stefan at soze dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_IMPL_KQUEUE_REACTOR_IPP
-#define ASIO_DETAIL_IMPL_KQUEUE_REACTOR_IPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-
-#if defined(ASIO_HAS_KQUEUE)
-
-#include "asio/detail/kqueue_reactor.hpp"
-#include "asio/detail/scheduler.hpp"
-#include "asio/detail/throw_error.hpp"
-#include "asio/error.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-#if defined(__NetBSD__)
-# define ASIO_KQUEUE_EV_SET(ev, ident, filt, flags, fflags, data, udata) \
-    EV_SET(ev, ident, filt, flags, fflags, data, \
-      reinterpret_cast<intptr_t>(static_cast<void*>(udata)))
-#else
-# define ASIO_KQUEUE_EV_SET(ev, ident, filt, flags, fflags, data, udata) \
-    EV_SET(ev, ident, filt, flags, fflags, data, udata)
-#endif
-
-namespace asio {
-namespace detail {
-
-kqueue_reactor::kqueue_reactor(asio::execution_context& ctx)
-  : execution_context_service_base<kqueue_reactor>(ctx),
-    scheduler_(use_service<scheduler>(ctx)),
-    mutex_(ASIO_CONCURRENCY_HINT_IS_LOCKING(
-          REACTOR_REGISTRATION, scheduler_.concurrency_hint())),
-    kqueue_fd_(do_kqueue_create()),
-    interrupter_(),
-    shutdown_(false),
-    registered_descriptors_mutex_(mutex_.enabled())
-{
-  struct kevent events[1];
-  ASIO_KQUEUE_EV_SET(&events[0], interrupter_.read_descriptor(),
-      EVFILT_READ, EV_ADD, 0, 0, &interrupter_);
-  if (::kevent(kqueue_fd_, events, 1, 0, 0, 0) == -1)
-  {
-    asio::error_code error(errno,
-        asio::error::get_system_category());
-    asio::detail::throw_error(error);
-  }
-}
-
-kqueue_reactor::~kqueue_reactor()
-{
-  close(kqueue_fd_);
-}
-
-void kqueue_reactor::shutdown()
-{
-  mutex::scoped_lock lock(mutex_);
-  shutdown_ = true;
-  lock.unlock();
-
-  op_queue<operation> ops;
-
-  while (descriptor_state* state = registered_descriptors_.first())
-  {
-    for (int i = 0; i < max_ops; ++i)
-      ops.push(state->op_queue_[i]);
-    state->shutdown_ = true;
-    registered_descriptors_.free(state);
-  }
-
-  timer_queues_.get_all_timers(ops);
-
-  scheduler_.abandon_operations(ops);
-}
-
-void kqueue_reactor::notify_fork(
-    asio::execution_context::fork_event fork_ev)
-{
-  if (fork_ev == asio::execution_context::fork_child)
-  {
-    // The kqueue descriptor is automatically closed in the child.
-    kqueue_fd_ = -1;
-    kqueue_fd_ = do_kqueue_create();
-
-    interrupter_.recreate();
-
-    struct kevent events[2];
-    ASIO_KQUEUE_EV_SET(&events[0], interrupter_.read_descriptor(),
-        EVFILT_READ, EV_ADD, 0, 0, &interrupter_);
-    if (::kevent(kqueue_fd_, events, 1, 0, 0, 0) == -1)
-    {
-      asio::error_code ec(errno,
-          asio::error::get_system_category());
-      asio::detail::throw_error(ec, "kqueue interrupter registration");
-    }
-
-    // Re-register all descriptors with kqueue.
-    mutex::scoped_lock descriptors_lock(registered_descriptors_mutex_);
-    for (descriptor_state* state = registered_descriptors_.first();
-        state != 0; state = state->next_)
-    {
-      if (state->num_kevents_ > 0)
-      {
-        ASIO_KQUEUE_EV_SET(&events[0], state->descriptor_,
-            EVFILT_READ, EV_ADD | EV_CLEAR, 0, 0, state);
-        ASIO_KQUEUE_EV_SET(&events[1], state->descriptor_,
-            EVFILT_WRITE, EV_ADD | EV_CLEAR, 0, 0, state);
-        if (::kevent(kqueue_fd_, events, state->num_kevents_, 0, 0, 0) == -1)
-        {
-          asio::error_code ec(errno,
-              asio::error::get_system_category());
-          asio::detail::throw_error(ec, "kqueue re-registration");
-        }
-      }
-    }
-  }
-}
-
-void kqueue_reactor::init_task()
-{
-  scheduler_.init_task();
-}
-
-int kqueue_reactor::register_descriptor(socket_type descriptor,
-    kqueue_reactor::per_descriptor_data& descriptor_data)
-{
-  descriptor_data = allocate_descriptor_state();
-
-  ASIO_HANDLER_REACTOR_REGISTRATION((
-        context(), static_cast<uintmax_t>(descriptor),
-        reinterpret_cast<uintmax_t>(descriptor_data)));
-
-  mutex::scoped_lock lock(descriptor_data->mutex_);
-
-  descriptor_data->descriptor_ = descriptor;
-  descriptor_data->num_kevents_ = 0;
-  descriptor_data->shutdown_ = false;
-
-  return 0;
-}
-
-int kqueue_reactor::register_internal_descriptor(
-    int op_type, socket_type descriptor,
-    kqueue_reactor::per_descriptor_data& descriptor_data, reactor_op* op)
-{
-  descriptor_data = allocate_descriptor_state();
-
-  ASIO_HANDLER_REACTOR_REGISTRATION((
-        context(), static_cast<uintmax_t>(descriptor),
-        reinterpret_cast<uintmax_t>(descriptor_data)));
-
-  mutex::scoped_lock lock(descriptor_data->mutex_);
-
-  descriptor_data->descriptor_ = descriptor;
-  descriptor_data->num_kevents_ = 1;
-  descriptor_data->shutdown_ = false;
-  descriptor_data->op_queue_[op_type].push(op);
-
-  struct kevent events[1];
-  ASIO_KQUEUE_EV_SET(&events[0], descriptor, EVFILT_READ,
-      EV_ADD | EV_CLEAR, 0, 0, descriptor_data);
-  if (::kevent(kqueue_fd_, events, 1, 0, 0, 0) == -1)
-    return errno;
-
-  return 0;
-}
-
-void kqueue_reactor::move_descriptor(socket_type,
-    kqueue_reactor::per_descriptor_data& target_descriptor_data,
-    kqueue_reactor::per_descriptor_data& source_descriptor_data)
-{
-  target_descriptor_data = source_descriptor_data;
-  source_descriptor_data = 0;
-}
-
-void kqueue_reactor::start_op(int op_type, socket_type descriptor,
-    kqueue_reactor::per_descriptor_data& descriptor_data, reactor_op* op,
-    bool is_continuation, bool allow_speculative)
-{
-  if (!descriptor_data)
-  {
-    op->ec_ = asio::error::bad_descriptor;
-    post_immediate_completion(op, is_continuation);
-    return;
-  }
-
-  mutex::scoped_lock descriptor_lock(descriptor_data->mutex_);
-
-  if (descriptor_data->shutdown_)
-  {
-    post_immediate_completion(op, is_continuation);
-    return;
-  }
-
-  if (descriptor_data->op_queue_[op_type].empty())
-  {
-    static const int num_kevents[max_ops] = { 1, 2, 1 };
-
-    if (allow_speculative
-        && (op_type != read_op
-          || descriptor_data->op_queue_[except_op].empty()))
-    {
-      if (op->perform())
-      {
-        descriptor_lock.unlock();
-        scheduler_.post_immediate_completion(op, is_continuation);
-        return;
-      }
-
-      if (descriptor_data->num_kevents_ < num_kevents[op_type])
-      {
-        struct kevent events[2];
-        ASIO_KQUEUE_EV_SET(&events[0], descriptor, EVFILT_READ,
-            EV_ADD | EV_CLEAR, 0, 0, descriptor_data);
-        ASIO_KQUEUE_EV_SET(&events[1], descriptor, EVFILT_WRITE,
-            EV_ADD | EV_CLEAR, 0, 0, descriptor_data);
-        if (::kevent(kqueue_fd_, events, num_kevents[op_type], 0, 0, 0) != -1)
-        {
-          descriptor_data->num_kevents_ = num_kevents[op_type];
-        }
-        else
-        {
-          op->ec_ = asio::error_code(errno,
-              asio::error::get_system_category());
-          scheduler_.post_immediate_completion(op, is_continuation);
-          return;
-        }
-      }
-    }
-    else
-    {
-      if (descriptor_data->num_kevents_ < num_kevents[op_type])
-        descriptor_data->num_kevents_ = num_kevents[op_type];
-
-      struct kevent events[2];
-      ASIO_KQUEUE_EV_SET(&events[0], descriptor, EVFILT_READ,
-          EV_ADD | EV_CLEAR, 0, 0, descriptor_data);
-      ASIO_KQUEUE_EV_SET(&events[1], descriptor, EVFILT_WRITE,
-          EV_ADD | EV_CLEAR, 0, 0, descriptor_data);
-      ::kevent(kqueue_fd_, events, descriptor_data->num_kevents_, 0, 0, 0);
-    }
-  }
-
-  descriptor_data->op_queue_[op_type].push(op);
-  scheduler_.work_started();
-}
-
-void kqueue_reactor::cancel_ops(socket_type,
-    kqueue_reactor::per_descriptor_data& descriptor_data)
-{
-  if (!descriptor_data)
-    return;
-
-  mutex::scoped_lock descriptor_lock(descriptor_data->mutex_);
-
-  op_queue<operation> ops;
-  for (int i = 0; i < max_ops; ++i)
-  {
-    while (reactor_op* op = descriptor_data->op_queue_[i].front())
-    {
-      op->ec_ = asio::error::operation_aborted;
-      descriptor_data->op_queue_[i].pop();
-      ops.push(op);
-    }
-  }
-
-  descriptor_lock.unlock();
-
-  scheduler_.post_deferred_completions(ops);
-}
-
-void kqueue_reactor::deregister_descriptor(socket_type descriptor,
-    kqueue_reactor::per_descriptor_data& descriptor_data, bool closing)
-{
-  if (!descriptor_data)
-    return;
-
-  mutex::scoped_lock descriptor_lock(descriptor_data->mutex_);
-
-  if (!descriptor_data->shutdown_)
-  {
-    if (closing)
-    {
-      // The descriptor will be automatically removed from the kqueue when it
-      // is closed.
-    }
-    else
-    {
-      struct kevent events[2];
-      ASIO_KQUEUE_EV_SET(&events[0], descriptor,
-          EVFILT_READ, EV_DELETE, 0, 0, 0);
-      ASIO_KQUEUE_EV_SET(&events[1], descriptor,
-          EVFILT_WRITE, EV_DELETE, 0, 0, 0);
-      ::kevent(kqueue_fd_, events, descriptor_data->num_kevents_, 0, 0, 0);
-    }
-
-    op_queue<operation> ops;
-    for (int i = 0; i < max_ops; ++i)
-    {
-      while (reactor_op* op = descriptor_data->op_queue_[i].front())
-      {
-        op->ec_ = asio::error::operation_aborted;
-        descriptor_data->op_queue_[i].pop();
-        ops.push(op);
-      }
-    }
-
-    descriptor_data->descriptor_ = -1;
-    descriptor_data->shutdown_ = true;
-
-    descriptor_lock.unlock();
-
-    ASIO_HANDLER_REACTOR_DEREGISTRATION((
-          context(), static_cast<uintmax_t>(descriptor),
-          reinterpret_cast<uintmax_t>(descriptor_data)));
-
-    scheduler_.post_deferred_completions(ops);
-
-    // Leave descriptor_data set so that it will be freed by the subsequent
-    // call to cleanup_descriptor_data.
-  }
-  else
-  {
-    // We are shutting down, so prevent cleanup_descriptor_data from freeing
-    // the descriptor_data object and let the destructor free it instead.
-    descriptor_data = 0;
-  }
-}
-
-void kqueue_reactor::deregister_internal_descriptor(socket_type descriptor,
-    kqueue_reactor::per_descriptor_data& descriptor_data)
-{
-  if (!descriptor_data)
-    return;
-
-  mutex::scoped_lock descriptor_lock(descriptor_data->mutex_);
-
-  if (!descriptor_data->shutdown_)
-  {
-    struct kevent events[2];
-    ASIO_KQUEUE_EV_SET(&events[0], descriptor,
-        EVFILT_READ, EV_DELETE, 0, 0, 0);
-    ASIO_KQUEUE_EV_SET(&events[1], descriptor,
-        EVFILT_WRITE, EV_DELETE, 0, 0, 0);
-    ::kevent(kqueue_fd_, events, descriptor_data->num_kevents_, 0, 0, 0);
-
-    op_queue<operation> ops;
-    for (int i = 0; i < max_ops; ++i)
-      ops.push(descriptor_data->op_queue_[i]);
-
-    descriptor_data->descriptor_ = -1;
-    descriptor_data->shutdown_ = true;
-
-    descriptor_lock.unlock();
-
-    ASIO_HANDLER_REACTOR_DEREGISTRATION((
-          context(), static_cast<uintmax_t>(descriptor),
-          reinterpret_cast<uintmax_t>(descriptor_data)));
-
-    // Leave descriptor_data set so that it will be freed by the subsequent
-    // call to cleanup_descriptor_data.
-  }
-  else
-  {
-    // We are shutting down, so prevent cleanup_descriptor_data from freeing
-    // the descriptor_data object and let the destructor free it instead.
-    descriptor_data = 0;
-  }
-}
-
-void kqueue_reactor::cleanup_descriptor_data(
-    per_descriptor_data& descriptor_data)
-{
-  if (descriptor_data)
-  {
-    free_descriptor_state(descriptor_data);
-    descriptor_data = 0;
-  }
-}
-
-void kqueue_reactor::run(long usec, op_queue<operation>& ops)
-{
-  mutex::scoped_lock lock(mutex_);
-
-  // Determine how long to block while waiting for events.
-  timespec timeout_buf = { 0, 0 };
-  timespec* timeout = usec ? get_timeout(usec, timeout_buf) : &timeout_buf;
-
-  lock.unlock();
-
-  // Block on the kqueue descriptor.
-  struct kevent events[128];
-  int num_events = kevent(kqueue_fd_, 0, 0, events, 128, timeout);
-
-#if defined(ASIO_ENABLE_HANDLER_TRACKING)
-  // Trace the waiting events.
-  for (int i = 0; i < num_events; ++i)
-  {
-    void* ptr = reinterpret_cast<void*>(events[i].udata);
-    if (ptr != &interrupter_)
-    {
-      unsigned event_mask = 0;
-      switch (events[i].filter)
-      {
-      case EVFILT_READ:
-        event_mask |= ASIO_HANDLER_REACTOR_READ_EVENT;
-        break;
-      case EVFILT_WRITE:
-        event_mask |= ASIO_HANDLER_REACTOR_WRITE_EVENT;
-        break;
-      }
-      if ((events[i].flags & (EV_ERROR | EV_OOBAND)) != 0)
-        event_mask |= ASIO_HANDLER_REACTOR_ERROR_EVENT;
-      ASIO_HANDLER_REACTOR_EVENTS((context(),
-            reinterpret_cast<uintmax_t>(ptr), event_mask));
-    }
-  }
-#endif // defined(ASIO_ENABLE_HANDLER_TRACKING)
-
-  // Dispatch the waiting events.
-  for (int i = 0; i < num_events; ++i)
-  {
-    void* ptr = reinterpret_cast<void*>(events[i].udata);
-    if (ptr == &interrupter_)
-    {
-      interrupter_.reset();
-    }
-    else
-    {
-      descriptor_state* descriptor_data = static_cast<descriptor_state*>(ptr);
-      mutex::scoped_lock descriptor_lock(descriptor_data->mutex_);
-
-      if (events[i].filter == EVFILT_WRITE
-          && descriptor_data->num_kevents_ == 2
-          && descriptor_data->op_queue_[write_op].empty())
-      {
-        // Some descriptor types, like serial ports, don't seem to support
-        // EV_CLEAR with EVFILT_WRITE. Since we have no pending write
-        // operations we'll remove the EVFILT_WRITE registration here so that
-        // we don't end up in a tight spin.
-        struct kevent delete_events[1];
-        ASIO_KQUEUE_EV_SET(&delete_events[0],
-            descriptor_data->descriptor_, EVFILT_WRITE, EV_DELETE, 0, 0, 0);
-        ::kevent(kqueue_fd_, delete_events, 1, 0, 0, 0);
-        descriptor_data->num_kevents_ = 1;
-      }
-
-      // Exception operations must be processed first to ensure that any
-      // out-of-band data is read before normal data.
-#if defined(__NetBSD__)
-      static const unsigned int filter[max_ops] =
-#else
-      static const int filter[max_ops] =
-#endif
-        { EVFILT_READ, EVFILT_WRITE, EVFILT_READ };
-      for (int j = max_ops - 1; j >= 0; --j)
-      {
-        if (events[i].filter == filter[j])
-        {
-          if (j != except_op || events[i].flags & EV_OOBAND)
-          {
-            while (reactor_op* op = descriptor_data->op_queue_[j].front())
-            {
-              if (events[i].flags & EV_ERROR)
-              {
-                op->ec_ = asio::error_code(
-                    static_cast<int>(events[i].data),
-                    asio::error::get_system_category());
-                descriptor_data->op_queue_[j].pop();
-                ops.push(op);
-              }
-              if (op->perform())
-              {
-                descriptor_data->op_queue_[j].pop();
-                ops.push(op);
-              }
-              else
-                break;
-            }
-          }
-        }
-      }
-    }
-  }
-
-  lock.lock();
-  timer_queues_.get_ready_timers(ops);
-}
-
-void kqueue_reactor::interrupt()
-{
-  interrupter_.interrupt();
-}
-
-int kqueue_reactor::do_kqueue_create()
-{
-  int fd = ::kqueue();
-  if (fd == -1)
-  {
-    asio::error_code ec(errno,
-        asio::error::get_system_category());
-    asio::detail::throw_error(ec, "kqueue");
-  }
-  return fd;
-}
-
-kqueue_reactor::descriptor_state* kqueue_reactor::allocate_descriptor_state()
-{
-  mutex::scoped_lock descriptors_lock(registered_descriptors_mutex_);
-  return registered_descriptors_.alloc(ASIO_CONCURRENCY_HINT_IS_LOCKING(
-        REACTOR_IO, scheduler_.concurrency_hint()));
-}
-
-void kqueue_reactor::free_descriptor_state(kqueue_reactor::descriptor_state* s)
-{
-  mutex::scoped_lock descriptors_lock(registered_descriptors_mutex_);
-  registered_descriptors_.free(s);
-}
-
-void kqueue_reactor::do_add_timer_queue(timer_queue_base& queue)
-{
-  mutex::scoped_lock lock(mutex_);
-  timer_queues_.insert(&queue);
-}
-
-void kqueue_reactor::do_remove_timer_queue(timer_queue_base& queue)
-{
-  mutex::scoped_lock lock(mutex_);
-  timer_queues_.erase(&queue);
-}
-
-timespec* kqueue_reactor::get_timeout(long usec, timespec& ts)
-{
-  // By default we will wait no longer than 5 minutes. This will ensure that
-  // any changes to the system clock are detected after no longer than this.
-  const long max_usec = 5 * 60 * 1000 * 1000;
-  usec = timer_queues_.wait_duration_usec(
-      (usec < 0 || max_usec < usec) ? max_usec : usec);
-  ts.tv_sec = usec / 1000000;
-  ts.tv_nsec = (usec % 1000000) * 1000;
-  return &ts;
-}
-
-} // namespace detail
-} // namespace asio
-
-#undef ASIO_KQUEUE_EV_SET
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // defined(ASIO_HAS_KQUEUE)
-
-#endif // ASIO_DETAIL_IMPL_KQUEUE_REACTOR_IPP
diff --git a/lib/asio/detail/impl/null_event.ipp b/lib/asio/detail/impl/null_event.ipp
deleted file mode 100644
index 22ade40..0000000
--- a/lib/asio/detail/impl/null_event.ipp
+++ /dev/null
@@ -1,74 +0,0 @@
-//
-// detail/impl/null_event.ipp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_IMPL_NULL_EVENT_IPP
-#define ASIO_DETAIL_IMPL_NULL_EVENT_IPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-
-#if defined(ASIO_WINDOWS_RUNTIME)
-# include <thread>
-#elif defined(ASIO_WINDOWS) || defined(__CYGWIN__)
-# include "asio/detail/socket_types.hpp"
-#else
-# include <unistd.h>
-# if defined(__hpux)
-#  include <sys/time.h>
-# endif
-# if !defined(__hpux) || defined(__SELECT)
-#  include <sys/select.h>
-# endif
-#endif
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-void null_event::do_wait()
-{
-#if defined(ASIO_WINDOWS_RUNTIME)
-  std::this_thread::sleep_until((std::chrono::steady_clock::time_point::max)());
-#elif defined(ASIO_WINDOWS) || defined(__CYGWIN__)
-  ::Sleep(INFINITE);
-#else
-  ::pause();
-#endif
-}
-
-void null_event::do_wait_for_usec(long usec)
-{
-#if defined(ASIO_WINDOWS_RUNTIME)
-  std::this_thread::sleep_for(std::chrono::microseconds(usec));
-#elif defined(ASIO_WINDOWS) || defined(__CYGWIN__)
-  ::Sleep(usec / 1000);
-#elif defined(__hpux) && defined(__SELECT)
-  timespec ts;
-  ts.tv_sec = usec / 1000000;
-  ts.tv_nsec = (usec % 1000000) * 1000;
-  ::pselect(0, 0, 0, 0, &ts, 0);
-#else
-  timeval tv;
-  tv.tv_sec = usec / 1000000;
-  tv.tv_usec = usec % 1000000;
-  ::select(0, 0, 0, 0, &tv);
-#endif
-}
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // ASIO_DETAIL_IMPL_NULL_EVENT_IPP
diff --git a/lib/asio/detail/impl/pipe_select_interrupter.ipp b/lib/asio/detail/impl/pipe_select_interrupter.ipp
deleted file mode 100644
index 13931ab..0000000
--- a/lib/asio/detail/impl/pipe_select_interrupter.ipp
+++ /dev/null
@@ -1,124 +0,0 @@
-//
-// detail/impl/pipe_select_interrupter.ipp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_IMPL_PIPE_SELECT_INTERRUPTER_IPP
-#define ASIO_DETAIL_IMPL_PIPE_SELECT_INTERRUPTER_IPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-
-#if !defined(ASIO_WINDOWS_RUNTIME)
-#if !defined(ASIO_WINDOWS)
-#if !defined(__CYGWIN__)
-#if !defined(__SYMBIAN32__)
-#if !defined(ASIO_HAS_EVENTFD)
-
-#include <fcntl.h>
-#include <sys/stat.h>
-#include <sys/types.h>
-#include <unistd.h>
-#include "asio/detail/pipe_select_interrupter.hpp"
-#include "asio/detail/socket_types.hpp"
-#include "asio/detail/throw_error.hpp"
-#include "asio/error.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-pipe_select_interrupter::pipe_select_interrupter()
-{
-  open_descriptors();
-}
-
-void pipe_select_interrupter::open_descriptors()
-{
-  int pipe_fds[2];
-  if (pipe(pipe_fds) == 0)
-  {
-    read_descriptor_ = pipe_fds[0];
-    ::fcntl(read_descriptor_, F_SETFL, O_NONBLOCK);
-    write_descriptor_ = pipe_fds[1];
-    ::fcntl(write_descriptor_, F_SETFL, O_NONBLOCK);
-
-#if defined(FD_CLOEXEC)
-    ::fcntl(read_descriptor_, F_SETFD, FD_CLOEXEC);
-    ::fcntl(write_descriptor_, F_SETFD, FD_CLOEXEC);
-#endif // defined(FD_CLOEXEC)
-  }
-  else
-  {
-    asio::error_code ec(errno,
-        asio::error::get_system_category());
-    asio::detail::throw_error(ec, "pipe_select_interrupter");
-  }
-}
-
-pipe_select_interrupter::~pipe_select_interrupter()
-{
-  close_descriptors();
-}
-
-void pipe_select_interrupter::close_descriptors()
-{
-  if (read_descriptor_ != -1)
-    ::close(read_descriptor_);
-  if (write_descriptor_ != -1)
-    ::close(write_descriptor_);
-}
-
-void pipe_select_interrupter::recreate()
-{
-  close_descriptors();
-
-  write_descriptor_ = -1;
-  read_descriptor_ = -1;
-
-  open_descriptors();
-}
-
-void pipe_select_interrupter::interrupt()
-{
-  char byte = 0;
-  signed_size_type result = ::write(write_descriptor_, &byte, 1);
-  (void)result;
-}
-
-bool pipe_select_interrupter::reset()
-{
-  for (;;)
-  {
-    char data[1024];
-    signed_size_type bytes_read = ::read(read_descriptor_, data, sizeof(data));
-    if (bytes_read < 0 && errno == EINTR)
-      continue;
-    bool was_interrupted = (bytes_read > 0);
-    while (bytes_read == sizeof(data))
-      bytes_read = ::read(read_descriptor_, data, sizeof(data));
-    return was_interrupted;
-  }
-}
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // !defined(ASIO_HAS_EVENTFD)
-#endif // !defined(__SYMBIAN32__)
-#endif // !defined(__CYGWIN__)
-#endif // !defined(ASIO_WINDOWS)
-#endif // !defined(ASIO_WINDOWS_RUNTIME)
-
-#endif // ASIO_DETAIL_IMPL_PIPE_SELECT_INTERRUPTER_IPP
diff --git a/lib/asio/detail/impl/posix_event.ipp b/lib/asio/detail/impl/posix_event.ipp
deleted file mode 100644
index 4b46ab0..0000000
--- a/lib/asio/detail/impl/posix_event.ipp
+++ /dev/null
@@ -1,59 +0,0 @@
-//
-// detail/impl/posix_event.ipp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_IMPL_POSIX_EVENT_IPP
-#define ASIO_DETAIL_IMPL_POSIX_EVENT_IPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-
-#if defined(ASIO_HAS_PTHREADS)
-
-#include "asio/detail/posix_event.hpp"
-#include "asio/detail/throw_error.hpp"
-#include "asio/error.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-posix_event::posix_event()
-  : state_(0)
-{
-#if (defined(__MACH__) && defined(__APPLE__)) \
-      || (defined(__ANDROID__) && (__ANDROID_API__ < 21))
-  int error = ::pthread_cond_init(&cond_, 0);
-#else // (defined(__MACH__) && defined(__APPLE__))
-      // || (defined(__ANDROID__) && (__ANDROID_API__ < 21))
-  ::pthread_condattr_t attr;
-  ::pthread_condattr_init(&attr);
-  int error = ::pthread_condattr_setclock(&attr, CLOCK_MONOTONIC);
-  if (error == 0)
-    error = ::pthread_cond_init(&cond_, &attr);
-#endif // (defined(__MACH__) && defined(__APPLE__))
-       // || (defined(__ANDROID__) && (__ANDROID_API__ < 21))
-
-  asio::error_code ec(error,
-      asio::error::get_system_category());
-  asio::detail::throw_error(ec, "event");
-}
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // defined(ASIO_HAS_PTHREADS)
-
-#endif // ASIO_DETAIL_IMPL_POSIX_EVENT_IPP
diff --git a/lib/asio/detail/impl/posix_mutex.ipp b/lib/asio/detail/impl/posix_mutex.ipp
deleted file mode 100644
index 27272b5..0000000
--- a/lib/asio/detail/impl/posix_mutex.ipp
+++ /dev/null
@@ -1,46 +0,0 @@
-//
-// detail/impl/posix_mutex.ipp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_IMPL_POSIX_MUTEX_IPP
-#define ASIO_DETAIL_IMPL_POSIX_MUTEX_IPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-
-#if defined(ASIO_HAS_PTHREADS)
-
-#include "asio/detail/posix_mutex.hpp"
-#include "asio/detail/throw_error.hpp"
-#include "asio/error.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-posix_mutex::posix_mutex()
-{
-  int error = ::pthread_mutex_init(&mutex_, 0);
-  asio::error_code ec(error,
-      asio::error::get_system_category());
-  asio::detail::throw_error(ec, "mutex");
-}
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // defined(ASIO_HAS_PTHREADS)
-
-#endif // ASIO_DETAIL_IMPL_POSIX_MUTEX_IPP
diff --git a/lib/asio/detail/impl/posix_thread.ipp b/lib/asio/detail/impl/posix_thread.ipp
deleted file mode 100644
index 69bd16f..0000000
--- a/lib/asio/detail/impl/posix_thread.ipp
+++ /dev/null
@@ -1,84 +0,0 @@
-//
-// detail/impl/posix_thread.ipp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_IMPL_POSIX_THREAD_IPP
-#define ASIO_DETAIL_IMPL_POSIX_THREAD_IPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-
-#if defined(ASIO_HAS_PTHREADS)
-
-#include "asio/detail/posix_thread.hpp"
-#include "asio/detail/throw_error.hpp"
-#include "asio/error.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-posix_thread::~posix_thread()
-{
-  if (!joined_)
-    ::pthread_detach(thread_);
-}
-
-void posix_thread::join()
-{
-  if (!joined_)
-  {
-    ::pthread_join(thread_, 0);
-    joined_ = true;
-  }
-}
-
-std::size_t posix_thread::hardware_concurrency()
-{
-#if defined(_SC_NPROCESSORS_ONLN)
-  long result = sysconf(_SC_NPROCESSORS_ONLN);
-  if (result > 0)
-    return result;
-#endif // defined(_SC_NPROCESSORS_ONLN)
-  return 0;
-}
-
-void posix_thread::start_thread(func_base* arg)
-{
-  int error = ::pthread_create(&thread_, 0,
-        asio_detail_posix_thread_function, arg);
-  if (error != 0)
-  {
-    delete arg;
-    asio::error_code ec(error,
-        asio::error::get_system_category());
-    asio::detail::throw_error(ec, "thread");
-  }
-}
-
-void* asio_detail_posix_thread_function(void* arg)
-{
-  posix_thread::auto_func_base_ptr func = {
-      static_cast<posix_thread::func_base*>(arg) };
-  func.ptr->run();
-  return 0;
-}
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // defined(ASIO_HAS_PTHREADS)
-
-#endif // ASIO_DETAIL_IMPL_POSIX_THREAD_IPP
diff --git a/lib/asio/detail/impl/posix_tss_ptr.ipp b/lib/asio/detail/impl/posix_tss_ptr.ipp
deleted file mode 100644
index 54b58bd..0000000
--- a/lib/asio/detail/impl/posix_tss_ptr.ipp
+++ /dev/null
@@ -1,46 +0,0 @@
-//
-// detail/impl/posix_tss_ptr.ipp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_IMPL_POSIX_TSS_PTR_IPP
-#define ASIO_DETAIL_IMPL_POSIX_TSS_PTR_IPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-
-#if defined(ASIO_HAS_PTHREADS)
-
-#include "asio/detail/posix_tss_ptr.hpp"
-#include "asio/detail/throw_error.hpp"
-#include "asio/error.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-void posix_tss_ptr_create(pthread_key_t& key)
-{
-  int error = ::pthread_key_create(&key, 0);
-  asio::error_code ec(error,
-      asio::error::get_system_category());
-  asio::detail::throw_error(ec, "tss");
-}
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // defined(ASIO_HAS_PTHREADS)
-
-#endif // ASIO_DETAIL_IMPL_POSIX_TSS_PTR_IPP
diff --git a/lib/asio/detail/impl/reactive_descriptor_service.ipp b/lib/asio/detail/impl/reactive_descriptor_service.ipp
deleted file mode 100644
index f9505ca..0000000
--- a/lib/asio/detail/impl/reactive_descriptor_service.ipp
+++ /dev/null
@@ -1,222 +0,0 @@
-//
-// detail/impl/reactive_descriptor_service.ipp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_IMPL_REACTIVE_DESCRIPTOR_SERVICE_IPP
-#define ASIO_DETAIL_IMPL_REACTIVE_DESCRIPTOR_SERVICE_IPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-
-#if !defined(ASIO_WINDOWS) \
-  && !defined(ASIO_WINDOWS_RUNTIME) \
-  && !defined(__CYGWIN__)
-
-#include "asio/error.hpp"
-#include "asio/detail/reactive_descriptor_service.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-reactive_descriptor_service::reactive_descriptor_service(
-    asio::io_context& io_context)
-  : service_base<reactive_descriptor_service>(io_context),
-    reactor_(asio::use_service<reactor>(io_context))
-{
-  reactor_.init_task();
-}
-
-void reactive_descriptor_service::shutdown()
-{
-}
-
-void reactive_descriptor_service::construct(
-    reactive_descriptor_service::implementation_type& impl)
-{
-  impl.descriptor_ = -1;
-  impl.state_ = 0;
-}
-
-void reactive_descriptor_service::move_construct(
-    reactive_descriptor_service::implementation_type& impl,
-    reactive_descriptor_service::implementation_type& other_impl)
-{
-  impl.descriptor_ = other_impl.descriptor_;
-  other_impl.descriptor_ = -1;
-
-  impl.state_ = other_impl.state_;
-  other_impl.state_ = 0;
-
-  reactor_.move_descriptor(impl.descriptor_,
-      impl.reactor_data_, other_impl.reactor_data_);
-}
-
-void reactive_descriptor_service::move_assign(
-    reactive_descriptor_service::implementation_type& impl,
-    reactive_descriptor_service& other_service,
-    reactive_descriptor_service::implementation_type& other_impl)
-{
-  destroy(impl);
-
-  impl.descriptor_ = other_impl.descriptor_;
-  other_impl.descriptor_ = -1;
-
-  impl.state_ = other_impl.state_;
-  other_impl.state_ = 0;
-
-  other_service.reactor_.move_descriptor(impl.descriptor_,
-      impl.reactor_data_, other_impl.reactor_data_);
-}
-
-void reactive_descriptor_service::destroy(
-    reactive_descriptor_service::implementation_type& impl)
-{
-  if (is_open(impl))
-  {
-    ASIO_HANDLER_OPERATION((reactor_.context(),
-          "descriptor", &impl, impl.descriptor_, "close"));
-
-    reactor_.deregister_descriptor(impl.descriptor_, impl.reactor_data_,
-        (impl.state_ & descriptor_ops::possible_dup) == 0);
-
-    asio::error_code ignored_ec;
-    descriptor_ops::close(impl.descriptor_, impl.state_, ignored_ec);
-
-    reactor_.cleanup_descriptor_data(impl.reactor_data_);
-  }
-}
-
-asio::error_code reactive_descriptor_service::assign(
-    reactive_descriptor_service::implementation_type& impl,
-    const native_handle_type& native_descriptor, asio::error_code& ec)
-{
-  if (is_open(impl))
-  {
-    ec = asio::error::already_open;
-    return ec;
-  }
-
-  if (int err = reactor_.register_descriptor(
-        native_descriptor, impl.reactor_data_))
-  {
-    ec = asio::error_code(err,
-        asio::error::get_system_category());
-    return ec;
-  }
-
-  impl.descriptor_ = native_descriptor;
-  impl.state_ = descriptor_ops::possible_dup;
-  ec = asio::error_code();
-  return ec;
-}
-
-asio::error_code reactive_descriptor_service::close(
-    reactive_descriptor_service::implementation_type& impl,
-    asio::error_code& ec)
-{
-  if (is_open(impl))
-  {
-    ASIO_HANDLER_OPERATION((reactor_.context(),
-          "descriptor", &impl, impl.descriptor_, "close"));
-
-    reactor_.deregister_descriptor(impl.descriptor_, impl.reactor_data_,
-        (impl.state_ & descriptor_ops::possible_dup) == 0);
-
-    descriptor_ops::close(impl.descriptor_, impl.state_, ec);
-
-    reactor_.cleanup_descriptor_data(impl.reactor_data_);
-  }
-  else
-  {
-    ec = asio::error_code();
-  }
-
-  // The descriptor is closed by the OS even if close() returns an error.
-  //
-  // (Actually, POSIX says the state of the descriptor is unspecified. On
-  // Linux the descriptor is apparently closed anyway; e.g. see
-  //   http://lkml.org/lkml/2005/9/10/129
-  // We'll just have to assume that other OSes follow the same behaviour.)
-  construct(impl);
-
-  return ec;
-}
-
-reactive_descriptor_service::native_handle_type
-reactive_descriptor_service::release(
-    reactive_descriptor_service::implementation_type& impl)
-{
-  native_handle_type descriptor = impl.descriptor_;
-
-  if (is_open(impl))
-  {
-    ASIO_HANDLER_OPERATION((reactor_.context(),
-          "descriptor", &impl, impl.descriptor_, "release"));
-
-    reactor_.deregister_descriptor(impl.descriptor_, impl.reactor_data_, false);
-    reactor_.cleanup_descriptor_data(impl.reactor_data_);
-    construct(impl);
-  }
-
-  return descriptor;
-}
-
-asio::error_code reactive_descriptor_service::cancel(
-    reactive_descriptor_service::implementation_type& impl,
-    asio::error_code& ec)
-{
-  if (!is_open(impl))
-  {
-    ec = asio::error::bad_descriptor;
-    return ec;
-  }
-
-  ASIO_HANDLER_OPERATION((reactor_.context(),
-        "descriptor", &impl, impl.descriptor_, "cancel"));
-
-  reactor_.cancel_ops(impl.descriptor_, impl.reactor_data_);
-  ec = asio::error_code();
-  return ec;
-}
-
-void reactive_descriptor_service::start_op(
-    reactive_descriptor_service::implementation_type& impl,
-    int op_type, reactor_op* op, bool is_continuation,
-    bool is_non_blocking, bool noop)
-{
-  if (!noop)
-  {
-    if ((impl.state_ & descriptor_ops::non_blocking) ||
-        descriptor_ops::set_internal_non_blocking(
-          impl.descriptor_, impl.state_, true, op->ec_))
-    {
-      reactor_.start_op(op_type, impl.descriptor_,
-          impl.reactor_data_, op, is_continuation, is_non_blocking);
-      return;
-    }
-  }
-
-  reactor_.post_immediate_completion(op, is_continuation);
-}
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // !defined(ASIO_WINDOWS)
-       //   && !defined(ASIO_WINDOWS_RUNTIME)
-       //   && !defined(__CYGWIN__)
-
-#endif // ASIO_DETAIL_IMPL_REACTIVE_DESCRIPTOR_SERVICE_IPP
diff --git a/lib/asio/detail/impl/reactive_serial_port_service.ipp b/lib/asio/detail/impl/reactive_serial_port_service.ipp
deleted file mode 100644
index c907835..0000000
--- a/lib/asio/detail/impl/reactive_serial_port_service.ipp
+++ /dev/null
@@ -1,152 +0,0 @@
-//
-// detail/impl/reactive_serial_port_service.ipp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-// Copyright (c) 2008 Rep Invariant Systems, Inc. (info@repinvariant.com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_IMPL_REACTIVE_SERIAL_PORT_SERVICE_IPP
-#define ASIO_DETAIL_IMPL_REACTIVE_SERIAL_PORT_SERVICE_IPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-
-#if defined(ASIO_HAS_SERIAL_PORT)
-#if !defined(ASIO_WINDOWS) && !defined(__CYGWIN__)
-
-#include <cstring>
-#include "asio/detail/reactive_serial_port_service.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-reactive_serial_port_service::reactive_serial_port_service(
-    asio::io_context& io_context)
-  : service_base<reactive_serial_port_service>(io_context),
-    descriptor_service_(io_context)
-{
-}
-
-void reactive_serial_port_service::shutdown()
-{
-  descriptor_service_.shutdown();
-}
-
-asio::error_code reactive_serial_port_service::open(
-    reactive_serial_port_service::implementation_type& impl,
-    const std::string& device, asio::error_code& ec)
-{
-  if (is_open(impl))
-  {
-    ec = asio::error::already_open;
-    return ec;
-  }
-
-  descriptor_ops::state_type state = 0;
-  int fd = descriptor_ops::open(device.c_str(),
-      O_RDWR | O_NONBLOCK | O_NOCTTY, ec);
-  if (fd < 0)
-    return ec;
-
-  int s = descriptor_ops::fcntl(fd, F_GETFL, ec);
-  if (s >= 0)
-    s = descriptor_ops::fcntl(fd, F_SETFL, s | O_NONBLOCK, ec);
-  if (s < 0)
-  {
-    asio::error_code ignored_ec;
-    descriptor_ops::close(fd, state, ignored_ec);
-    return ec;
-  }
-
-  // Set up default serial port options.
-  termios ios;
-  errno = 0;
-  s = descriptor_ops::error_wrapper(::tcgetattr(fd, &ios), ec);
-  if (s >= 0)
-  {
-#if defined(_BSD_SOURCE) || defined(_DEFAULT_SOURCE)
-    ::cfmakeraw(&ios);
-#else
-    ios.c_iflag &= ~(IGNBRK | BRKINT | PARMRK
-        | ISTRIP | INLCR | IGNCR | ICRNL | IXON);
-    ios.c_oflag &= ~OPOST;
-    ios.c_lflag &= ~(ECHO | ECHONL | ICANON | ISIG | IEXTEN);
-    ios.c_cflag &= ~(CSIZE | PARENB);
-    ios.c_cflag |= CS8;
-#endif
-    ios.c_iflag |= IGNPAR;
-    ios.c_cflag |= CREAD | CLOCAL;
-    errno = 0;
-    s = descriptor_ops::error_wrapper(::tcsetattr(fd, TCSANOW, &ios), ec);
-  }
-  if (s < 0)
-  {
-    asio::error_code ignored_ec;
-    descriptor_ops::close(fd, state, ignored_ec);
-    return ec;
-  }
-
-  // We're done. Take ownership of the serial port descriptor.
-  if (descriptor_service_.assign(impl, fd, ec))
-  {
-    asio::error_code ignored_ec;
-    descriptor_ops::close(fd, state, ignored_ec);
-  }
-
-  return ec;
-}
-
-asio::error_code reactive_serial_port_service::do_set_option(
-    reactive_serial_port_service::implementation_type& impl,
-    reactive_serial_port_service::store_function_type store,
-    const void* option, asio::error_code& ec)
-{
-  termios ios;
-  errno = 0;
-  descriptor_ops::error_wrapper(::tcgetattr(
-        descriptor_service_.native_handle(impl), &ios), ec);
-  if (ec)
-    return ec;
-
-  if (store(option, ios, ec))
-    return ec;
-
-  errno = 0;
-  descriptor_ops::error_wrapper(::tcsetattr(
-        descriptor_service_.native_handle(impl), TCSANOW, &ios), ec);
-  return ec;
-}
-
-asio::error_code reactive_serial_port_service::do_get_option(
-    const reactive_serial_port_service::implementation_type& impl,
-    reactive_serial_port_service::load_function_type load,
-    void* option, asio::error_code& ec) const
-{
-  termios ios;
-  errno = 0;
-  descriptor_ops::error_wrapper(::tcgetattr(
-        descriptor_service_.native_handle(impl), &ios), ec);
-  if (ec)
-    return ec;
-
-  return load(option, ios, ec);
-}
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // !defined(ASIO_WINDOWS) && !defined(__CYGWIN__)
-#endif // defined(ASIO_HAS_SERIAL_PORT)
-
-#endif // ASIO_DETAIL_IMPL_REACTIVE_SERIAL_PORT_SERVICE_IPP
diff --git a/lib/asio/detail/impl/reactive_socket_service_base.ipp b/lib/asio/detail/impl/reactive_socket_service_base.ipp
deleted file mode 100644
index 129b851..0000000
--- a/lib/asio/detail/impl/reactive_socket_service_base.ipp
+++ /dev/null
@@ -1,300 +0,0 @@
-//
-// detail/reactive_socket_service_base.ipp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_IMPL_REACTIVE_SOCKET_SERVICE_BASE_IPP
-#define ASIO_DETAIL_IMPL_REACTIVE_SOCKET_SERVICE_BASE_IPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-
-#if !defined(ASIO_HAS_IOCP) \
-  && !defined(ASIO_WINDOWS_RUNTIME)
-
-#include "asio/detail/reactive_socket_service_base.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-reactive_socket_service_base::reactive_socket_service_base(
-    asio::io_context& io_context)
-  : io_context_(io_context),
-    reactor_(use_service<reactor>(io_context))
-{
-  reactor_.init_task();
-}
-
-void reactive_socket_service_base::base_shutdown()
-{
-}
-
-void reactive_socket_service_base::construct(
-    reactive_socket_service_base::base_implementation_type& impl)
-{
-  impl.socket_ = invalid_socket;
-  impl.state_ = 0;
-}
-
-void reactive_socket_service_base::base_move_construct(
-    reactive_socket_service_base::base_implementation_type& impl,
-    reactive_socket_service_base::base_implementation_type& other_impl)
-{
-  impl.socket_ = other_impl.socket_;
-  other_impl.socket_ = invalid_socket;
-
-  impl.state_ = other_impl.state_;
-  other_impl.state_ = 0;
-
-  reactor_.move_descriptor(impl.socket_,
-      impl.reactor_data_, other_impl.reactor_data_);
-}
-
-void reactive_socket_service_base::base_move_assign(
-    reactive_socket_service_base::base_implementation_type& impl,
-    reactive_socket_service_base& other_service,
-    reactive_socket_service_base::base_implementation_type& other_impl)
-{
-  destroy(impl);
-
-  impl.socket_ = other_impl.socket_;
-  other_impl.socket_ = invalid_socket;
-
-  impl.state_ = other_impl.state_;
-  other_impl.state_ = 0;
-
-  other_service.reactor_.move_descriptor(impl.socket_,
-      impl.reactor_data_, other_impl.reactor_data_);
-}
-
-void reactive_socket_service_base::destroy(
-    reactive_socket_service_base::base_implementation_type& impl)
-{
-  if (impl.socket_ != invalid_socket)
-  {
-    ASIO_HANDLER_OPERATION((reactor_.context(),
-          "socket", &impl, impl.socket_, "close"));
-
-    reactor_.deregister_descriptor(impl.socket_, impl.reactor_data_,
-        (impl.state_ & socket_ops::possible_dup) == 0);
-
-    asio::error_code ignored_ec;
-    socket_ops::close(impl.socket_, impl.state_, true, ignored_ec);
-
-    reactor_.cleanup_descriptor_data(impl.reactor_data_);
-  }
-}
-
-asio::error_code reactive_socket_service_base::close(
-    reactive_socket_service_base::base_implementation_type& impl,
-    asio::error_code& ec)
-{
-  if (is_open(impl))
-  {
-    ASIO_HANDLER_OPERATION((reactor_.context(),
-          "socket", &impl, impl.socket_, "close"));
-
-    reactor_.deregister_descriptor(impl.socket_, impl.reactor_data_,
-        (impl.state_ & socket_ops::possible_dup) == 0);
-
-    socket_ops::close(impl.socket_, impl.state_, false, ec);
-
-    reactor_.cleanup_descriptor_data(impl.reactor_data_);
-  }
-  else
-  {
-    ec = asio::error_code();
-  }
-
-  // The descriptor is closed by the OS even if close() returns an error.
-  //
-  // (Actually, POSIX says the state of the descriptor is unspecified. On
-  // Linux the descriptor is apparently closed anyway; e.g. see
-  //   http://lkml.org/lkml/2005/9/10/129
-  // We'll just have to assume that other OSes follow the same behaviour. The
-  // known exception is when Windows's closesocket() function fails with
-  // WSAEWOULDBLOCK, but this case is handled inside socket_ops::close().
-  construct(impl);
-
-  return ec;
-}
-
-socket_type reactive_socket_service_base::release(
-    reactive_socket_service_base::base_implementation_type& impl,
-    asio::error_code& ec)
-{
-  if (!is_open(impl))
-  {
-    ec = asio::error::bad_descriptor;
-    return invalid_socket;
-  }
-
-  ASIO_HANDLER_OPERATION((reactor_.context(),
-        "socket", &impl, impl.socket_, "release"));
-
-  reactor_.deregister_descriptor(impl.socket_, impl.reactor_data_, false);
-  reactor_.cleanup_descriptor_data(impl.reactor_data_);
-  socket_type sock = impl.socket_;
-  construct(impl);
-  ec = asio::error_code();
-  return sock;
-}
-
-asio::error_code reactive_socket_service_base::cancel(
-    reactive_socket_service_base::base_implementation_type& impl,
-    asio::error_code& ec)
-{
-  if (!is_open(impl))
-  {
-    ec = asio::error::bad_descriptor;
-    return ec;
-  }
-
-  ASIO_HANDLER_OPERATION((reactor_.context(),
-        "socket", &impl, impl.socket_, "cancel"));
-
-  reactor_.cancel_ops(impl.socket_, impl.reactor_data_);
-  ec = asio::error_code();
-  return ec;
-}
-
-asio::error_code reactive_socket_service_base::do_open(
-    reactive_socket_service_base::base_implementation_type& impl,
-    int af, int type, int protocol, asio::error_code& ec)
-{
-  if (is_open(impl))
-  {
-    ec = asio::error::already_open;
-    return ec;
-  }
-
-  socket_holder sock(socket_ops::socket(af, type, protocol, ec));
-  if (sock.get() == invalid_socket)
-    return ec;
-
-  if (int err = reactor_.register_descriptor(sock.get(), impl.reactor_data_))
-  {
-    ec = asio::error_code(err,
-        asio::error::get_system_category());
-    return ec;
-  }
-
-  impl.socket_ = sock.release();
-  switch (type)
-  {
-  case SOCK_STREAM: impl.state_ = socket_ops::stream_oriented; break;
-  case SOCK_DGRAM: impl.state_ = socket_ops::datagram_oriented; break;
-  default: impl.state_ = 0; break;
-  }
-  ec = asio::error_code();
-  return ec;
-}
-
-asio::error_code reactive_socket_service_base::do_assign(
-    reactive_socket_service_base::base_implementation_type& impl, int type,
-    const reactive_socket_service_base::native_handle_type& native_socket,
-    asio::error_code& ec)
-{
-  if (is_open(impl))
-  {
-    ec = asio::error::already_open;
-    return ec;
-  }
-
-  if (int err = reactor_.register_descriptor(
-        native_socket, impl.reactor_data_))
-  {
-    ec = asio::error_code(err,
-        asio::error::get_system_category());
-    return ec;
-  }
-
-  impl.socket_ = native_socket;
-  switch (type)
-  {
-  case SOCK_STREAM: impl.state_ = socket_ops::stream_oriented; break;
-  case SOCK_DGRAM: impl.state_ = socket_ops::datagram_oriented; break;
-  default: impl.state_ = 0; break;
-  }
-  impl.state_ |= socket_ops::possible_dup;
-  ec = asio::error_code();
-  return ec;
-}
-
-void reactive_socket_service_base::start_op(
-    reactive_socket_service_base::base_implementation_type& impl,
-    int op_type, reactor_op* op, bool is_continuation,
-    bool is_non_blocking, bool noop)
-{
-  if (!noop)
-  {
-    if ((impl.state_ & socket_ops::non_blocking)
-        || socket_ops::set_internal_non_blocking(
-          impl.socket_, impl.state_, true, op->ec_))
-    {
-      reactor_.start_op(op_type, impl.socket_,
-          impl.reactor_data_, op, is_continuation, is_non_blocking);
-      return;
-    }
-  }
-
-  reactor_.post_immediate_completion(op, is_continuation);
-}
-
-void reactive_socket_service_base::start_accept_op(
-    reactive_socket_service_base::base_implementation_type& impl,
-    reactor_op* op, bool is_continuation, bool peer_is_open)
-{
-  if (!peer_is_open)
-    start_op(impl, reactor::read_op, op, is_continuation, true, false);
-  else
-  {
-    op->ec_ = asio::error::already_open;
-    reactor_.post_immediate_completion(op, is_continuation);
-  }
-}
-
-void reactive_socket_service_base::start_connect_op(
-    reactive_socket_service_base::base_implementation_type& impl,
-    reactor_op* op, bool is_continuation,
-    const socket_addr_type* addr, size_t addrlen)
-{
-  if ((impl.state_ & socket_ops::non_blocking)
-      || socket_ops::set_internal_non_blocking(
-        impl.socket_, impl.state_, true, op->ec_))
-  {
-    if (socket_ops::connect(impl.socket_, addr, addrlen, op->ec_) != 0)
-    {
-      if (op->ec_ == asio::error::in_progress
-          || op->ec_ == asio::error::would_block)
-      {
-        op->ec_ = asio::error_code();
-        reactor_.start_op(reactor::connect_op, impl.socket_,
-            impl.reactor_data_, op, is_continuation, false);
-        return;
-      }
-    }
-  }
-
-  reactor_.post_immediate_completion(op, is_continuation);
-}
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // !defined(ASIO_HAS_IOCP)
-       //   && !defined(ASIO_WINDOWS_RUNTIME)
-
-#endif // ASIO_DETAIL_IMPL_REACTIVE_SOCKET_SERVICE_BASE_IPP
diff --git a/lib/asio/detail/impl/resolver_service_base.ipp b/lib/asio/detail/impl/resolver_service_base.ipp
deleted file mode 100644
index 540bb66..0000000
--- a/lib/asio/detail/impl/resolver_service_base.ipp
+++ /dev/null
@@ -1,154 +0,0 @@
-//
-// detail/impl/resolver_service_base.ipp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_IMPL_RESOLVER_SERVICE_BASE_IPP
-#define ASIO_DETAIL_IMPL_RESOLVER_SERVICE_BASE_IPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-#include "asio/detail/resolver_service_base.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-class resolver_service_base::work_io_context_runner
-{
-public:
-  work_io_context_runner(asio::io_context& io_context)
-    : io_context_(io_context) {}
-  void operator()() { io_context_.run(); }
-private:
-  asio::io_context& io_context_;
-};
-
-resolver_service_base::resolver_service_base(
-    asio::io_context& io_context)
-  : io_context_impl_(asio::use_service<io_context_impl>(io_context)),
-    work_io_context_(new asio::io_context(-1)),
-    work_io_context_impl_(asio::use_service<
-        io_context_impl>(*work_io_context_)),
-    work_(asio::make_work_guard(*work_io_context_)),
-    work_thread_(0)
-{
-}
-
-resolver_service_base::~resolver_service_base()
-{
-  base_shutdown();
-}
-
-void resolver_service_base::base_shutdown()
-{
-  work_.reset();
-  if (work_io_context_.get())
-  {
-    work_io_context_->stop();
-    if (work_thread_.get())
-    {
-      work_thread_->join();
-      work_thread_.reset();
-    }
-    work_io_context_.reset();
-  }
-}
-
-void resolver_service_base::base_notify_fork(
-    asio::io_context::fork_event fork_ev)
-{
-  if (work_thread_.get())
-  {
-    if (fork_ev == asio::io_context::fork_prepare)
-    {
-      work_io_context_->stop();
-      work_thread_->join();
-    }
-    else
-    {
-      work_io_context_->restart();
-      work_thread_.reset(new asio::detail::thread(
-            work_io_context_runner(*work_io_context_)));
-    }
-  }
-}
-
-void resolver_service_base::construct(
-    resolver_service_base::implementation_type& impl)
-{
-  impl.reset(static_cast<void*>(0), socket_ops::noop_deleter());
-}
-
-void resolver_service_base::destroy(
-    resolver_service_base::implementation_type& impl)
-{
-  ASIO_HANDLER_OPERATION((io_context_impl_.context(),
-        "resolver", &impl, 0, "cancel"));
-
-  impl.reset();
-}
-
-void resolver_service_base::move_construct(implementation_type& impl,
-    implementation_type& other_impl)
-{
-  impl = ASIO_MOVE_CAST(implementation_type)(other_impl);
-}
-
-void resolver_service_base::move_assign(implementation_type& impl,
-    resolver_service_base&, implementation_type& other_impl)
-{
-  destroy(impl);
-  impl = ASIO_MOVE_CAST(implementation_type)(other_impl);
-}
-
-void resolver_service_base::cancel(
-    resolver_service_base::implementation_type& impl)
-{
-  ASIO_HANDLER_OPERATION((io_context_impl_.context(),
-        "resolver", &impl, 0, "cancel"));
-
-  impl.reset(static_cast<void*>(0), socket_ops::noop_deleter());
-}
-
-void resolver_service_base::start_resolve_op(resolve_op* op)
-{
-  if (ASIO_CONCURRENCY_HINT_IS_LOCKING(SCHEDULER,
-        io_context_impl_.concurrency_hint()))
-  {
-    start_work_thread();
-    io_context_impl_.work_started();
-    work_io_context_impl_.post_immediate_completion(op, false);
-  }
-  else
-  {
-    op->ec_ = asio::error::operation_not_supported;
-    io_context_impl_.post_immediate_completion(op, false);
-  }
-}
-
-void resolver_service_base::start_work_thread()
-{
-  asio::detail::mutex::scoped_lock lock(mutex_);
-  if (!work_thread_.get())
-  {
-    work_thread_.reset(new asio::detail::thread(
-          work_io_context_runner(*work_io_context_)));
-  }
-}
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // ASIO_DETAIL_IMPL_RESOLVER_SERVICE_BASE_IPP
diff --git a/lib/asio/detail/impl/scheduler.ipp b/lib/asio/detail/impl/scheduler.ipp
deleted file mode 100644
index 35bc678..0000000
--- a/lib/asio/detail/impl/scheduler.ipp
+++ /dev/null
@@ -1,571 +0,0 @@
-//
-// detail/impl/scheduler.ipp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_IMPL_SCHEDULER_IPP
-#define ASIO_DETAIL_IMPL_SCHEDULER_IPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-
-#include "asio/detail/concurrency_hint.hpp"
-#include "asio/detail/event.hpp"
-#include "asio/detail/limits.hpp"
-#include "asio/detail/reactor.hpp"
-#include "asio/detail/scheduler.hpp"
-#include "asio/detail/scheduler_thread_info.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-struct scheduler::task_cleanup
-{
-  ~task_cleanup()
-  {
-    if (this_thread_->private_outstanding_work > 0)
-    {
-      asio::detail::increment(
-          scheduler_->outstanding_work_,
-          this_thread_->private_outstanding_work);
-    }
-    this_thread_->private_outstanding_work = 0;
-
-    // Enqueue the completed operations and reinsert the task at the end of
-    // the operation queue.
-    lock_->lock();
-    scheduler_->task_interrupted_ = true;
-    scheduler_->op_queue_.push(this_thread_->private_op_queue);
-    scheduler_->op_queue_.push(&scheduler_->task_operation_);
-  }
-
-  scheduler* scheduler_;
-  mutex::scoped_lock* lock_;
-  thread_info* this_thread_;
-};
-
-struct scheduler::work_cleanup
-{
-  ~work_cleanup()
-  {
-    if (this_thread_->private_outstanding_work > 1)
-    {
-      asio::detail::increment(
-          scheduler_->outstanding_work_,
-          this_thread_->private_outstanding_work - 1);
-    }
-    else if (this_thread_->private_outstanding_work < 1)
-    {
-      scheduler_->work_finished();
-    }
-    this_thread_->private_outstanding_work = 0;
-
-#if defined(ASIO_HAS_THREADS)
-    if (!this_thread_->private_op_queue.empty())
-    {
-      lock_->lock();
-      scheduler_->op_queue_.push(this_thread_->private_op_queue);
-    }
-#endif // defined(ASIO_HAS_THREADS)
-  }
-
-  scheduler* scheduler_;
-  mutex::scoped_lock* lock_;
-  thread_info* this_thread_;
-};
-
-scheduler::scheduler(
-    asio::execution_context& ctx, int concurrency_hint)
-  : asio::detail::execution_context_service_base<scheduler>(ctx),
-    one_thread_(concurrency_hint == 1
-        || !ASIO_CONCURRENCY_HINT_IS_LOCKING(
-          SCHEDULER, concurrency_hint)
-        || !ASIO_CONCURRENCY_HINT_IS_LOCKING(
-          REACTOR_IO, concurrency_hint)),
-    mutex_(ASIO_CONCURRENCY_HINT_IS_LOCKING(
-          SCHEDULER, concurrency_hint)),
-    task_(0),
-    task_interrupted_(true),
-    outstanding_work_(0),
-    stopped_(false),
-    shutdown_(false),
-    concurrency_hint_(concurrency_hint)
-{
-  ASIO_HANDLER_TRACKING_INIT;
-}
-
-void scheduler::shutdown()
-{
-  mutex::scoped_lock lock(mutex_);
-  shutdown_ = true;
-  lock.unlock();
-
-  // Destroy handler objects.
-  while (!op_queue_.empty())
-  {
-    operation* o = op_queue_.front();
-    op_queue_.pop();
-    if (o != &task_operation_)
-      o->destroy();
-  }
-
-  // Reset to initial state.
-  task_ = 0;
-}
-
-void scheduler::init_task()
-{
-  mutex::scoped_lock lock(mutex_);
-  if (!shutdown_ && !task_)
-  {
-    task_ = &use_service<reactor>(this->context());
-    op_queue_.push(&task_operation_);
-    wake_one_thread_and_unlock(lock);
-  }
-}
-
-std::size_t scheduler::run(asio::error_code& ec)
-{
-  ec = asio::error_code();
-  if (outstanding_work_ == 0)
-  {
-    stop();
-    return 0;
-  }
-
-  thread_info this_thread;
-  this_thread.private_outstanding_work = 0;
-  thread_call_stack::context ctx(this, this_thread);
-
-  mutex::scoped_lock lock(mutex_);
-
-  std::size_t n = 0;
-  for (; do_run_one(lock, this_thread, ec); lock.lock())
-    if (n != (std::numeric_limits<std::size_t>::max)())
-      ++n;
-  return n;
-}
-
-std::size_t scheduler::run_one(asio::error_code& ec)
-{
-  ec = asio::error_code();
-  if (outstanding_work_ == 0)
-  {
-    stop();
-    return 0;
-  }
-
-  thread_info this_thread;
-  this_thread.private_outstanding_work = 0;
-  thread_call_stack::context ctx(this, this_thread);
-
-  mutex::scoped_lock lock(mutex_);
-
-  return do_run_one(lock, this_thread, ec);
-}
-
-std::size_t scheduler::wait_one(long usec, asio::error_code& ec)
-{
-  ec = asio::error_code();
-  if (outstanding_work_ == 0)
-  {
-    stop();
-    return 0;
-  }
-
-  thread_info this_thread;
-  this_thread.private_outstanding_work = 0;
-  thread_call_stack::context ctx(this, this_thread);
-
-  mutex::scoped_lock lock(mutex_);
-
-  return do_wait_one(lock, this_thread, usec, ec);
-}
-
-std::size_t scheduler::poll(asio::error_code& ec)
-{
-  ec = asio::error_code();
-  if (outstanding_work_ == 0)
-  {
-    stop();
-    return 0;
-  }
-
-  thread_info this_thread;
-  this_thread.private_outstanding_work = 0;
-  thread_call_stack::context ctx(this, this_thread);
-
-  mutex::scoped_lock lock(mutex_);
-
-#if defined(ASIO_HAS_THREADS)
-  // We want to support nested calls to poll() and poll_one(), so any handlers
-  // that are already on a thread-private queue need to be put on to the main
-  // queue now.
-  if (one_thread_)
-    if (thread_info* outer_info = static_cast<thread_info*>(ctx.next_by_key()))
-      op_queue_.push(outer_info->private_op_queue);
-#endif // defined(ASIO_HAS_THREADS)
-
-  std::size_t n = 0;
-  for (; do_poll_one(lock, this_thread, ec); lock.lock())
-    if (n != (std::numeric_limits<std::size_t>::max)())
-      ++n;
-  return n;
-}
-
-std::size_t scheduler::poll_one(asio::error_code& ec)
-{
-  ec = asio::error_code();
-  if (outstanding_work_ == 0)
-  {
-    stop();
-    return 0;
-  }
-
-  thread_info this_thread;
-  this_thread.private_outstanding_work = 0;
-  thread_call_stack::context ctx(this, this_thread);
-
-  mutex::scoped_lock lock(mutex_);
-
-#if defined(ASIO_HAS_THREADS)
-  // We want to support nested calls to poll() and poll_one(), so any handlers
-  // that are already on a thread-private queue need to be put on to the main
-  // queue now.
-  if (one_thread_)
-    if (thread_info* outer_info = static_cast<thread_info*>(ctx.next_by_key()))
-      op_queue_.push(outer_info->private_op_queue);
-#endif // defined(ASIO_HAS_THREADS)
-
-  return do_poll_one(lock, this_thread, ec);
-}
-
-void scheduler::stop()
-{
-  mutex::scoped_lock lock(mutex_);
-  stop_all_threads(lock);
-}
-
-bool scheduler::stopped() const
-{
-  mutex::scoped_lock lock(mutex_);
-  return stopped_;
-}
-
-void scheduler::restart()
-{
-  mutex::scoped_lock lock(mutex_);
-  stopped_ = false;
-}
-
-void scheduler::compensating_work_started()
-{
-  thread_info_base* this_thread = thread_call_stack::contains(this);
-  ++static_cast<thread_info*>(this_thread)->private_outstanding_work;
-}
-
-void scheduler::post_immediate_completion(
-    scheduler::operation* op, bool is_continuation)
-{
-#if defined(ASIO_HAS_THREADS)
-  if (one_thread_ || is_continuation)
-  {
-    if (thread_info_base* this_thread = thread_call_stack::contains(this))
-    {
-      ++static_cast<thread_info*>(this_thread)->private_outstanding_work;
-      static_cast<thread_info*>(this_thread)->private_op_queue.push(op);
-      return;
-    }
-  }
-#else // defined(ASIO_HAS_THREADS)
-  (void)is_continuation;
-#endif // defined(ASIO_HAS_THREADS)
-
-  work_started();
-  mutex::scoped_lock lock(mutex_);
-  op_queue_.push(op);
-  wake_one_thread_and_unlock(lock);
-}
-
-void scheduler::post_deferred_completion(scheduler::operation* op)
-{
-#if defined(ASIO_HAS_THREADS)
-  if (one_thread_)
-  {
-    if (thread_info_base* this_thread = thread_call_stack::contains(this))
-    {
-      static_cast<thread_info*>(this_thread)->private_op_queue.push(op);
-      return;
-    }
-  }
-#endif // defined(ASIO_HAS_THREADS)
-
-  mutex::scoped_lock lock(mutex_);
-  op_queue_.push(op);
-  wake_one_thread_and_unlock(lock);
-}
-
-void scheduler::post_deferred_completions(
-    op_queue<scheduler::operation>& ops)
-{
-  if (!ops.empty())
-  {
-#if defined(ASIO_HAS_THREADS)
-    if (one_thread_)
-    {
-      if (thread_info_base* this_thread = thread_call_stack::contains(this))
-      {
-        static_cast<thread_info*>(this_thread)->private_op_queue.push(ops);
-        return;
-      }
-    }
-#endif // defined(ASIO_HAS_THREADS)
-
-    mutex::scoped_lock lock(mutex_);
-    op_queue_.push(ops);
-    wake_one_thread_and_unlock(lock);
-  }
-}
-
-void scheduler::do_dispatch(
-    scheduler::operation* op)
-{
-  work_started();
-  mutex::scoped_lock lock(mutex_);
-  op_queue_.push(op);
-  wake_one_thread_and_unlock(lock);
-}
-
-void scheduler::abandon_operations(
-    op_queue<scheduler::operation>& ops)
-{
-  op_queue<scheduler::operation> ops2;
-  ops2.push(ops);
-}
-
-std::size_t scheduler::do_run_one(mutex::scoped_lock& lock,
-    scheduler::thread_info& this_thread,
-    const asio::error_code& ec)
-{
-  while (!stopped_)
-  {
-    if (!op_queue_.empty())
-    {
-      // Prepare to execute first handler from queue.
-      operation* o = op_queue_.front();
-      op_queue_.pop();
-      bool more_handlers = (!op_queue_.empty());
-
-      if (o == &task_operation_)
-      {
-        task_interrupted_ = more_handlers;
-
-        if (more_handlers && !one_thread_)
-          wakeup_event_.unlock_and_signal_one(lock);
-        else
-          lock.unlock();
-
-        task_cleanup on_exit = { this, &lock, &this_thread };
-        (void)on_exit;
-
-        // Run the task. May throw an exception. Only block if the operation
-        // queue is empty and we're not polling, otherwise we want to return
-        // as soon as possible.
-        task_->run(more_handlers ? 0 : -1, this_thread.private_op_queue);
-      }
-      else
-      {
-        std::size_t task_result = o->task_result_;
-
-        if (more_handlers && !one_thread_)
-          wake_one_thread_and_unlock(lock);
-        else
-          lock.unlock();
-
-        // Ensure the count of outstanding work is decremented on block exit.
-        work_cleanup on_exit = { this, &lock, &this_thread };
-        (void)on_exit;
-
-        // Complete the operation. May throw an exception. Deletes the object.
-        o->complete(this, ec, task_result);
-
-        return 1;
-      }
-    }
-    else
-    {
-      wakeup_event_.clear(lock);
-      wakeup_event_.wait(lock);
-    }
-  }
-
-  return 0;
-}
-
-std::size_t scheduler::do_wait_one(mutex::scoped_lock& lock,
-    scheduler::thread_info& this_thread, long usec,
-    const asio::error_code& ec)
-{
-  if (stopped_)
-    return 0;
-
-  operation* o = op_queue_.front();
-  if (o == 0)
-  {
-    wakeup_event_.clear(lock);
-    wakeup_event_.wait_for_usec(lock, usec);
-    usec = 0; // Wait at most once.
-    o = op_queue_.front();
-  }
-
-  if (o == &task_operation_)
-  {
-    op_queue_.pop();
-    bool more_handlers = (!op_queue_.empty());
-
-    task_interrupted_ = more_handlers;
-
-    if (more_handlers && !one_thread_)
-      wakeup_event_.unlock_and_signal_one(lock);
-    else
-      lock.unlock();
-
-    {
-      task_cleanup on_exit = { this, &lock, &this_thread };
-      (void)on_exit;
-
-      // Run the task. May throw an exception. Only block if the operation
-      // queue is empty and we're not polling, otherwise we want to return
-      // as soon as possible.
-      task_->run(more_handlers ? 0 : usec, this_thread.private_op_queue);
-    }
-
-    o = op_queue_.front();
-    if (o == &task_operation_)
-    {
-      if (!one_thread_)
-        wakeup_event_.maybe_unlock_and_signal_one(lock);
-      return 0;
-    }
-  }
-
-  if (o == 0)
-    return 0;
-
-  op_queue_.pop();
-  bool more_handlers = (!op_queue_.empty());
-
-  std::size_t task_result = o->task_result_;
-
-  if (more_handlers && !one_thread_)
-    wake_one_thread_and_unlock(lock);
-  else
-    lock.unlock();
-
-  // Ensure the count of outstanding work is decremented on block exit.
-  work_cleanup on_exit = { this, &lock, &this_thread };
-  (void)on_exit;
-
-  // Complete the operation. May throw an exception. Deletes the object.
-  o->complete(this, ec, task_result);
-
-  return 1;
-}
-
-std::size_t scheduler::do_poll_one(mutex::scoped_lock& lock,
-    scheduler::thread_info& this_thread,
-    const asio::error_code& ec)
-{
-  if (stopped_)
-    return 0;
-
-  operation* o = op_queue_.front();
-  if (o == &task_operation_)
-  {
-    op_queue_.pop();
-    lock.unlock();
-
-    {
-      task_cleanup c = { this, &lock, &this_thread };
-      (void)c;
-
-      // Run the task. May throw an exception. Only block if the operation
-      // queue is empty and we're not polling, otherwise we want to return
-      // as soon as possible.
-      task_->run(0, this_thread.private_op_queue);
-    }
-
-    o = op_queue_.front();
-    if (o == &task_operation_)
-    {
-      wakeup_event_.maybe_unlock_and_signal_one(lock);
-      return 0;
-    }
-  }
-
-  if (o == 0)
-    return 0;
-
-  op_queue_.pop();
-  bool more_handlers = (!op_queue_.empty());
-
-  std::size_t task_result = o->task_result_;
-
-  if (more_handlers && !one_thread_)
-    wake_one_thread_and_unlock(lock);
-  else
-    lock.unlock();
-
-  // Ensure the count of outstanding work is decremented on block exit.
-  work_cleanup on_exit = { this, &lock, &this_thread };
-  (void)on_exit;
-
-  // Complete the operation. May throw an exception. Deletes the object.
-  o->complete(this, ec, task_result);
-
-  return 1;
-}
-
-void scheduler::stop_all_threads(
-    mutex::scoped_lock& lock)
-{
-  stopped_ = true;
-  wakeup_event_.signal_all(lock);
-
-  if (!task_interrupted_ && task_)
-  {
-    task_interrupted_ = true;
-    task_->interrupt();
-  }
-}
-
-void scheduler::wake_one_thread_and_unlock(
-    mutex::scoped_lock& lock)
-{
-  if (!wakeup_event_.maybe_unlock_and_signal_one(lock))
-  {
-    if (!task_interrupted_ && task_)
-    {
-      task_interrupted_ = true;
-      task_->interrupt();
-    }
-    lock.unlock();
-  }
-}
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // ASIO_DETAIL_IMPL_SCHEDULER_IPP
diff --git a/lib/asio/detail/impl/select_reactor.hpp b/lib/asio/detail/impl/select_reactor.hpp
deleted file mode 100644
index 04a04d4..0000000
--- a/lib/asio/detail/impl/select_reactor.hpp
+++ /dev/null
@@ -1,100 +0,0 @@
-//
-// detail/impl/select_reactor.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_IMPL_SELECT_REACTOR_HPP
-#define ASIO_DETAIL_IMPL_SELECT_REACTOR_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-
-#if defined(ASIO_HAS_IOCP) \
-  || (!defined(ASIO_HAS_DEV_POLL) \
-      && !defined(ASIO_HAS_EPOLL) \
-      && !defined(ASIO_HAS_KQUEUE) \
-      && !defined(ASIO_WINDOWS_RUNTIME))
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-template <typename Time_Traits>
-void select_reactor::add_timer_queue(timer_queue<Time_Traits>& queue)
-{
-  do_add_timer_queue(queue);
-}
-
-// Remove a timer queue from the reactor.
-template <typename Time_Traits>
-void select_reactor::remove_timer_queue(timer_queue<Time_Traits>& queue)
-{
-  do_remove_timer_queue(queue);
-}
-
-template <typename Time_Traits>
-void select_reactor::schedule_timer(timer_queue<Time_Traits>& queue,
-    const typename Time_Traits::time_type& time,
-    typename timer_queue<Time_Traits>::per_timer_data& timer, wait_op* op)
-{
-  asio::detail::mutex::scoped_lock lock(mutex_);
-
-  if (shutdown_)
-  {
-    scheduler_.post_immediate_completion(op, false);
-    return;
-  }
-
-  bool earliest = queue.enqueue_timer(time, timer, op);
-  scheduler_.work_started();
-  if (earliest)
-    interrupter_.interrupt();
-}
-
-template <typename Time_Traits>
-std::size_t select_reactor::cancel_timer(timer_queue<Time_Traits>& queue,
-    typename timer_queue<Time_Traits>::per_timer_data& timer,
-    std::size_t max_cancelled)
-{
-  asio::detail::mutex::scoped_lock lock(mutex_);
-  op_queue<operation> ops;
-  std::size_t n = queue.cancel_timer(timer, ops, max_cancelled);
-  lock.unlock();
-  scheduler_.post_deferred_completions(ops);
-  return n;
-}
-
-template <typename Time_Traits>
-void select_reactor::move_timer(timer_queue<Time_Traits>& queue,
-    typename timer_queue<Time_Traits>::per_timer_data& target,
-    typename timer_queue<Time_Traits>::per_timer_data& source)
-{
-  asio::detail::mutex::scoped_lock lock(mutex_);
-  op_queue<operation> ops;
-  queue.cancel_timer(target, ops);
-  queue.move_timer(target, source);
-  lock.unlock();
-  scheduler_.post_deferred_completions(ops);
-}
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // defined(ASIO_HAS_IOCP)
-       //   || (!defined(ASIO_HAS_DEV_POLL)
-       //       && !defined(ASIO_HAS_EPOLL)
-       //       && !defined(ASIO_HAS_KQUEUE)
-       //       && !defined(ASIO_WINDOWS_RUNTIME))
-
-#endif // ASIO_DETAIL_IMPL_SELECT_REACTOR_HPP
diff --git a/lib/asio/detail/impl/select_reactor.ipp b/lib/asio/detail/impl/select_reactor.ipp
deleted file mode 100644
index 262bc69..0000000
--- a/lib/asio/detail/impl/select_reactor.ipp
+++ /dev/null
@@ -1,333 +0,0 @@
-//
-// detail/impl/select_reactor.ipp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_IMPL_SELECT_REACTOR_IPP
-#define ASIO_DETAIL_IMPL_SELECT_REACTOR_IPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-
-#if defined(ASIO_HAS_IOCP) \
-  || (!defined(ASIO_HAS_DEV_POLL) \
-      && !defined(ASIO_HAS_EPOLL) \
-      && !defined(ASIO_HAS_KQUEUE) \
-      && !defined(ASIO_WINDOWS_RUNTIME))
-
-#include "asio/detail/fd_set_adapter.hpp"
-#include "asio/detail/select_reactor.hpp"
-#include "asio/detail/signal_blocker.hpp"
-#include "asio/detail/socket_ops.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-#if defined(ASIO_HAS_IOCP)
-class select_reactor::thread_function
-{
-public:
-  explicit thread_function(select_reactor* r)
-    : this_(r)
-  {
-  }
-
-  void operator()()
-  {
-    this_->run_thread();
-  }
-
-private:
-  select_reactor* this_;
-};
-#endif // defined(ASIO_HAS_IOCP)
-
-select_reactor::select_reactor(asio::execution_context& ctx)
-  : execution_context_service_base<select_reactor>(ctx),
-    scheduler_(use_service<scheduler_type>(ctx)),
-    mutex_(),
-    interrupter_(),
-#if defined(ASIO_HAS_IOCP)
-    stop_thread_(false),
-    thread_(0),
-#endif // defined(ASIO_HAS_IOCP)
-    shutdown_(false)
-{
-#if defined(ASIO_HAS_IOCP)
-  asio::detail::signal_blocker sb;
-  thread_ = new asio::detail::thread(thread_function(this));
-#endif // defined(ASIO_HAS_IOCP)
-}
-
-select_reactor::~select_reactor()
-{
-  shutdown();
-}
-
-void select_reactor::shutdown()
-{
-  asio::detail::mutex::scoped_lock lock(mutex_);
-  shutdown_ = true;
-#if defined(ASIO_HAS_IOCP)
-  stop_thread_ = true;
-#endif // defined(ASIO_HAS_IOCP)
-  lock.unlock();
-
-#if defined(ASIO_HAS_IOCP)
-  if (thread_)
-  {
-    interrupter_.interrupt();
-    thread_->join();
-    delete thread_;
-    thread_ = 0;
-  }
-#endif // defined(ASIO_HAS_IOCP)
-
-  op_queue<operation> ops;
-
-  for (int i = 0; i < max_ops; ++i)
-    op_queue_[i].get_all_operations(ops);
-
-  timer_queues_.get_all_timers(ops);
-
-  scheduler_.abandon_operations(ops);
-}
-
-void select_reactor::notify_fork(
-    asio::execution_context::fork_event fork_ev)
-{
-  if (fork_ev == asio::execution_context::fork_child)
-    interrupter_.recreate();
-}
-
-void select_reactor::init_task()
-{
-  scheduler_.init_task();
-}
-
-int select_reactor::register_descriptor(socket_type,
-    select_reactor::per_descriptor_data&)
-{
-  return 0;
-}
-
-int select_reactor::register_internal_descriptor(
-    int op_type, socket_type descriptor,
-    select_reactor::per_descriptor_data&, reactor_op* op)
-{
-  asio::detail::mutex::scoped_lock lock(mutex_);
-
-  op_queue_[op_type].enqueue_operation(descriptor, op);
-  interrupter_.interrupt();
-
-  return 0;
-}
-
-void select_reactor::move_descriptor(socket_type,
-    select_reactor::per_descriptor_data&,
-    select_reactor::per_descriptor_data&)
-{
-}
-
-void select_reactor::start_op(int op_type, socket_type descriptor,
-    select_reactor::per_descriptor_data&, reactor_op* op,
-    bool is_continuation, bool)
-{
-  asio::detail::mutex::scoped_lock lock(mutex_);
-
-  if (shutdown_)
-  {
-    post_immediate_completion(op, is_continuation);
-    return;
-  }
-
-  bool first = op_queue_[op_type].enqueue_operation(descriptor, op);
-  scheduler_.work_started();
-  if (first)
-    interrupter_.interrupt();
-}
-
-void select_reactor::cancel_ops(socket_type descriptor,
-    select_reactor::per_descriptor_data&)
-{
-  asio::detail::mutex::scoped_lock lock(mutex_);
-  cancel_ops_unlocked(descriptor, asio::error::operation_aborted);
-}
-
-void select_reactor::deregister_descriptor(socket_type descriptor,
-    select_reactor::per_descriptor_data&, bool)
-{
-  asio::detail::mutex::scoped_lock lock(mutex_);
-  cancel_ops_unlocked(descriptor, asio::error::operation_aborted);
-}
-
-void select_reactor::deregister_internal_descriptor(
-    socket_type descriptor, select_reactor::per_descriptor_data&)
-{
-  asio::detail::mutex::scoped_lock lock(mutex_);
-  op_queue<operation> ops;
-  for (int i = 0; i < max_ops; ++i)
-    op_queue_[i].cancel_operations(descriptor, ops);
-}
-
-void select_reactor::cleanup_descriptor_data(
-    select_reactor::per_descriptor_data&)
-{
-}
-
-void select_reactor::run(long usec, op_queue<operation>& ops)
-{
-  asio::detail::mutex::scoped_lock lock(mutex_);
-
-#if defined(ASIO_HAS_IOCP)
-  // Check if the thread is supposed to stop.
-  if (stop_thread_)
-    return;
-#endif // defined(ASIO_HAS_IOCP)
-
-  // Set up the descriptor sets.
-  for (int i = 0; i < max_select_ops; ++i)
-    fd_sets_[i].reset();
-  fd_sets_[read_op].set(interrupter_.read_descriptor());
-  socket_type max_fd = 0;
-  bool have_work_to_do = !timer_queues_.all_empty();
-  for (int i = 0; i < max_select_ops; ++i)
-  {
-    have_work_to_do = have_work_to_do || !op_queue_[i].empty();
-    fd_sets_[i].set(op_queue_[i], ops);
-    if (fd_sets_[i].max_descriptor() > max_fd)
-      max_fd = fd_sets_[i].max_descriptor();
-  }
-
-#if defined(ASIO_WINDOWS) || defined(__CYGWIN__)
-  // Connection operations on Windows use both except and write fd_sets.
-  have_work_to_do = have_work_to_do || !op_queue_[connect_op].empty();
-  fd_sets_[write_op].set(op_queue_[connect_op], ops);
-  if (fd_sets_[write_op].max_descriptor() > max_fd)
-    max_fd = fd_sets_[write_op].max_descriptor();
-  fd_sets_[except_op].set(op_queue_[connect_op], ops);
-  if (fd_sets_[except_op].max_descriptor() > max_fd)
-    max_fd = fd_sets_[except_op].max_descriptor();
-#endif // defined(ASIO_WINDOWS) || defined(__CYGWIN__)
-
-  // We can return immediately if there's no work to do and the reactor is
-  // not supposed to block.
-  if (!usec && !have_work_to_do)
-    return;
-
-  // Determine how long to block while waiting for events.
-  timeval tv_buf = { 0, 0 };
-  timeval* tv = usec ? get_timeout(usec, tv_buf) : &tv_buf;
-
-  lock.unlock();
-
-  // Block on the select call until descriptors become ready.
-  asio::error_code ec;
-  int retval = socket_ops::select(static_cast<int>(max_fd + 1),
-      fd_sets_[read_op], fd_sets_[write_op], fd_sets_[except_op], tv, ec);
-
-  // Reset the interrupter.
-  if (retval > 0 && fd_sets_[read_op].is_set(interrupter_.read_descriptor()))
-  {
-    interrupter_.reset();
-    --retval;
-  }
-
-  lock.lock();
-
-  // Dispatch all ready operations.
-  if (retval > 0)
-  {
-#if defined(ASIO_WINDOWS) || defined(__CYGWIN__)
-    // Connection operations on Windows use both except and write fd_sets.
-    fd_sets_[except_op].perform(op_queue_[connect_op], ops);
-    fd_sets_[write_op].perform(op_queue_[connect_op], ops);
-#endif // defined(ASIO_WINDOWS) || defined(__CYGWIN__)
-
-    // Exception operations must be processed first to ensure that any
-    // out-of-band data is read before normal data.
-    for (int i = max_select_ops - 1; i >= 0; --i)
-      fd_sets_[i].perform(op_queue_[i], ops);
-  }
-  timer_queues_.get_ready_timers(ops);
-}
-
-void select_reactor::interrupt()
-{
-  interrupter_.interrupt();
-}
-
-#if defined(ASIO_HAS_IOCP)
-void select_reactor::run_thread()
-{
-  asio::detail::mutex::scoped_lock lock(mutex_);
-  while (!stop_thread_)
-  {
-    lock.unlock();
-    op_queue<operation> ops;
-    run(true, ops);
-    scheduler_.post_deferred_completions(ops);
-    lock.lock();
-  }
-}
-#endif // defined(ASIO_HAS_IOCP)
-
-void select_reactor::do_add_timer_queue(timer_queue_base& queue)
-{
-  mutex::scoped_lock lock(mutex_);
-  timer_queues_.insert(&queue);
-}
-
-void select_reactor::do_remove_timer_queue(timer_queue_base& queue)
-{
-  mutex::scoped_lock lock(mutex_);
-  timer_queues_.erase(&queue);
-}
-
-timeval* select_reactor::get_timeout(long usec, timeval& tv)
-{
-  // By default we will wait no longer than 5 minutes. This will ensure that
-  // any changes to the system clock are detected after no longer than this.
-  const long max_usec = 5 * 60 * 1000 * 1000;
-  usec = timer_queues_.wait_duration_usec(
-      (usec < 0 || max_usec < usec) ? max_usec : usec);
-  tv.tv_sec = usec / 1000000;
-  tv.tv_usec = usec % 1000000;
-  return &tv;
-}
-
-void select_reactor::cancel_ops_unlocked(socket_type descriptor,
-    const asio::error_code& ec)
-{
-  bool need_interrupt = false;
-  op_queue<operation> ops;
-  for (int i = 0; i < max_ops; ++i)
-    need_interrupt = op_queue_[i].cancel_operations(
-        descriptor, ops, ec) || need_interrupt;
-  scheduler_.post_deferred_completions(ops);
-  if (need_interrupt)
-    interrupter_.interrupt();
-}
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // defined(ASIO_HAS_IOCP)
-       //   || (!defined(ASIO_HAS_DEV_POLL)
-       //       && !defined(ASIO_HAS_EPOLL)
-       //       && !defined(ASIO_HAS_KQUEUE))
-       //       && !defined(ASIO_WINDOWS_RUNTIME))
-
-#endif // ASIO_DETAIL_IMPL_SELECT_REACTOR_IPP
diff --git a/lib/asio/detail/impl/service_registry.hpp b/lib/asio/detail/impl/service_registry.hpp
deleted file mode 100644
index d4db589..0000000
--- a/lib/asio/detail/impl/service_registry.hpp
+++ /dev/null
@@ -1,94 +0,0 @@
-//
-// detail/impl/service_registry.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_IMPL_SERVICE_REGISTRY_HPP
-#define ASIO_DETAIL_IMPL_SERVICE_REGISTRY_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-template <typename Service>
-Service& service_registry::use_service()
-{
-  execution_context::service::key key;
-  init_key<Service>(key, 0);
-  factory_type factory = &service_registry::create<Service, execution_context>;
-  return *static_cast<Service*>(do_use_service(key, factory, &owner_));
-}
-
-template <typename Service>
-Service& service_registry::use_service(io_context& owner)
-{
-  execution_context::service::key key;
-  init_key<Service>(key, 0);
-  factory_type factory = &service_registry::create<Service, io_context>;
-  return *static_cast<Service*>(do_use_service(key, factory, &owner));
-}
-
-template <typename Service>
-void service_registry::add_service(Service* new_service)
-{
-  execution_context::service::key key;
-  init_key<Service>(key, 0);
-  return do_add_service(key, new_service);
-}
-
-template <typename Service>
-bool service_registry::has_service() const
-{
-  execution_context::service::key key;
-  init_key<Service>(key, 0);
-  return do_has_service(key);
-}
-
-template <typename Service>
-inline void service_registry::init_key(
-    execution_context::service::key& key, ...)
-{
-  init_key_from_id(key, Service::id);
-}
-
-#if !defined(ASIO_NO_TYPEID)
-template <typename Service>
-void service_registry::init_key(execution_context::service::key& key,
-    typename enable_if<
-      is_base_of<typename Service::key_type, Service>::value>::type*)
-{
-  key.type_info_ = &typeid(typeid_wrapper<Service>);
-  key.id_ = 0;
-}
-
-template <typename Service>
-void service_registry::init_key_from_id(execution_context::service::key& key,
-    const service_id<Service>& /*id*/)
-{
-  key.type_info_ = &typeid(typeid_wrapper<Service>);
-  key.id_ = 0;
-}
-#endif // !defined(ASIO_NO_TYPEID)
-
-template <typename Service, typename Owner>
-execution_context::service* service_registry::create(void* owner)
-{
-  return new Service(*static_cast<Owner*>(owner));
-}
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // ASIO_DETAIL_IMPL_SERVICE_REGISTRY_HPP
diff --git a/lib/asio/detail/impl/service_registry.ipp b/lib/asio/detail/impl/service_registry.ipp
deleted file mode 100644
index a465033..0000000
--- a/lib/asio/detail/impl/service_registry.ipp
+++ /dev/null
@@ -1,197 +0,0 @@
-//
-// detail/impl/service_registry.ipp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_IMPL_SERVICE_REGISTRY_IPP
-#define ASIO_DETAIL_IMPL_SERVICE_REGISTRY_IPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-#include <vector>
-#include "asio/detail/service_registry.hpp"
-#include "asio/detail/throw_exception.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-service_registry::service_registry(execution_context& owner)
-  : owner_(owner),
-    first_service_(0)
-{
-}
-
-service_registry::~service_registry()
-{
-}
-
-void service_registry::shutdown_services()
-{
-  execution_context::service* service = first_service_;
-  while (service)
-  {
-    service->shutdown();
-    service = service->next_;
-  }
-}
-
-void service_registry::destroy_services()
-{
-  while (first_service_)
-  {
-    execution_context::service* next_service = first_service_->next_;
-    destroy(first_service_);
-    first_service_ = next_service;
-  }
-}
-
-void service_registry::notify_fork(execution_context::fork_event fork_ev)
-{
-  // Make a copy of all of the services while holding the lock. We don't want
-  // to hold the lock while calling into each service, as it may try to call
-  // back into this class.
-  std::vector<execution_context::service*> services;
-  {
-    asio::detail::mutex::scoped_lock lock(mutex_);
-    execution_context::service* service = first_service_;
-    while (service)
-    {
-      services.push_back(service);
-      service = service->next_;
-    }
-  }
-
-  // If processing the fork_prepare event, we want to go in reverse order of
-  // service registration, which happens to be the existing order of the
-  // services in the vector. For the other events we want to go in the other
-  // direction.
-  std::size_t num_services = services.size();
-  if (fork_ev == execution_context::fork_prepare)
-    for (std::size_t i = 0; i < num_services; ++i)
-      services[i]->notify_fork(fork_ev);
-  else
-    for (std::size_t i = num_services; i > 0; --i)
-      services[i - 1]->notify_fork(fork_ev);
-}
-
-void service_registry::init_key_from_id(execution_context::service::key& key,
-    const execution_context::id& id)
-{
-  key.type_info_ = 0;
-  key.id_ = &id;
-}
-
-bool service_registry::keys_match(
-    const execution_context::service::key& key1,
-    const execution_context::service::key& key2)
-{
-  if (key1.id_ && key2.id_)
-    if (key1.id_ == key2.id_)
-      return true;
-  if (key1.type_info_ && key2.type_info_)
-    if (*key1.type_info_ == *key2.type_info_)
-      return true;
-  return false;
-}
-
-void service_registry::destroy(execution_context::service* service)
-{
-  delete service;
-}
-
-execution_context::service* service_registry::do_use_service(
-    const execution_context::service::key& key,
-    factory_type factory, void* owner)
-{
-  asio::detail::mutex::scoped_lock lock(mutex_);
-
-  // First see if there is an existing service object with the given key.
-  execution_context::service* service = first_service_;
-  while (service)
-  {
-    if (keys_match(service->key_, key))
-      return service;
-    service = service->next_;
-  }
-
-  // Create a new service object. The service registry's mutex is not locked
-  // at this time to allow for nested calls into this function from the new
-  // service's constructor.
-  lock.unlock();
-  auto_service_ptr new_service = { factory(owner) };
-  new_service.ptr_->key_ = key;
-  lock.lock();
-
-  // Check that nobody else created another service object of the same type
-  // while the lock was released.
-  service = first_service_;
-  while (service)
-  {
-    if (keys_match(service->key_, key))
-      return service;
-    service = service->next_;
-  }
-
-  // Service was successfully initialised, pass ownership to registry.
-  new_service.ptr_->next_ = first_service_;
-  first_service_ = new_service.ptr_;
-  new_service.ptr_ = 0;
-  return first_service_;
-}
-
-void service_registry::do_add_service(
-    const execution_context::service::key& key,
-    execution_context::service* new_service)
-{
-  if (&owner_ != &new_service->context())
-    asio::detail::throw_exception(invalid_service_owner());
-
-  asio::detail::mutex::scoped_lock lock(mutex_);
-
-  // Check if there is an existing service object with the given key.
-  execution_context::service* service = first_service_;
-  while (service)
-  {
-    if (keys_match(service->key_, key))
-      asio::detail::throw_exception(service_already_exists());
-    service = service->next_;
-  }
-
-  // Take ownership of the service object.
-  new_service->key_ = key;
-  new_service->next_ = first_service_;
-  first_service_ = new_service;
-}
-
-bool service_registry::do_has_service(
-    const execution_context::service::key& key) const
-{
-  asio::detail::mutex::scoped_lock lock(mutex_);
-
-  execution_context::service* service = first_service_;
-  while (service)
-  {
-    if (keys_match(service->key_, key))
-      return true;
-    service = service->next_;
-  }
-
-  return false;
-}
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // ASIO_DETAIL_IMPL_SERVICE_REGISTRY_IPP
diff --git a/lib/asio/detail/impl/signal_set_service.ipp b/lib/asio/detail/impl/signal_set_service.ipp
deleted file mode 100644
index dd68fc1..0000000
--- a/lib/asio/detail/impl/signal_set_service.ipp
+++ /dev/null
@@ -1,669 +0,0 @@
-//
-// detail/impl/signal_set_service.ipp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_IMPL_SIGNAL_SET_SERVICE_IPP
-#define ASIO_DETAIL_IMPL_SIGNAL_SET_SERVICE_IPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-
-#include <cstring>
-#include <stdexcept>
-#include "asio/detail/reactor.hpp"
-#include "asio/detail/signal_blocker.hpp"
-#include "asio/detail/signal_set_service.hpp"
-#include "asio/detail/static_mutex.hpp"
-#include "asio/detail/throw_exception.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-struct signal_state
-{
-  // Mutex used for protecting global state.
-  static_mutex mutex_;
-
-  // The read end of the pipe used for signal notifications.
-  int read_descriptor_;
-
-  // The write end of the pipe used for signal notifications.
-  int write_descriptor_;
-
-  // Whether the signal state has been prepared for a fork.
-  bool fork_prepared_;
-
-  // The head of a linked list of all signal_set_service instances.
-  class signal_set_service* service_list_;
-
-  // A count of the number of objects that are registered for each signal.
-  std::size_t registration_count_[max_signal_number];
-};
-
-signal_state* get_signal_state()
-{
-  static signal_state state = {
-    ASIO_STATIC_MUTEX_INIT, -1, -1, false, 0, { 0 } };
-  return &state;
-}
-
-void asio_signal_handler(int signal_number)
-{
-#if defined(ASIO_WINDOWS) \
-  || defined(ASIO_WINDOWS_RUNTIME) \
-  || defined(__CYGWIN__)
-  signal_set_service::deliver_signal(signal_number);
-#else // defined(ASIO_WINDOWS)
-      //   || defined(ASIO_WINDOWS_RUNTIME)
-      //   || defined(__CYGWIN__)
-  int saved_errno = errno;
-  signal_state* state = get_signal_state();
-  signed_size_type result = ::write(state->write_descriptor_,
-      &signal_number, sizeof(signal_number));
-  (void)result;
-  errno = saved_errno;
-#endif // defined(ASIO_WINDOWS)
-       //   || defined(ASIO_WINDOWS_RUNTIME)
-       //   || defined(__CYGWIN__)
-
-#if defined(ASIO_HAS_SIGNAL) && !defined(ASIO_HAS_SIGACTION)
-  ::signal(signal_number, asio_signal_handler);
-#endif // defined(ASIO_HAS_SIGNAL) && !defined(ASIO_HAS_SIGACTION)
-}
-
-#if !defined(ASIO_WINDOWS) \
-  && !defined(ASIO_WINDOWS_RUNTIME) \
-  && !defined(__CYGWIN__)
-class signal_set_service::pipe_read_op : public reactor_op
-{
-public:
-  pipe_read_op()
-    : reactor_op(&pipe_read_op::do_perform, pipe_read_op::do_complete)
-  {
-  }
-
-  static status do_perform(reactor_op*)
-  {
-    signal_state* state = get_signal_state();
-
-    int fd = state->read_descriptor_;
-    int signal_number = 0;
-    while (::read(fd, &signal_number, sizeof(int)) == sizeof(int))
-      if (signal_number >= 0 && signal_number < max_signal_number)
-        signal_set_service::deliver_signal(signal_number);
-
-    return not_done;
-  }
-
-  static void do_complete(void* /*owner*/, operation* base,
-      const asio::error_code& /*ec*/,
-      std::size_t /*bytes_transferred*/)
-  {
-    pipe_read_op* o(static_cast<pipe_read_op*>(base));
-    delete o;
-  }
-};
-#endif // !defined(ASIO_WINDOWS)
-       //   && !defined(ASIO_WINDOWS_RUNTIME)
-       //   && !defined(__CYGWIN__)
-
-signal_set_service::signal_set_service(
-    asio::io_context& io_context)
-  : service_base<signal_set_service>(io_context),
-    io_context_(asio::use_service<io_context_impl>(io_context)),
-#if !defined(ASIO_WINDOWS) \
-  && !defined(ASIO_WINDOWS_RUNTIME) \
-  && !defined(__CYGWIN__)
-    reactor_(asio::use_service<reactor>(io_context)),
-#endif // !defined(ASIO_WINDOWS)
-       //   && !defined(ASIO_WINDOWS_RUNTIME)
-       //   && !defined(__CYGWIN__)
-    next_(0),
-    prev_(0)
-{
-  get_signal_state()->mutex_.init();
-
-#if !defined(ASIO_WINDOWS) \
-  && !defined(ASIO_WINDOWS_RUNTIME) \
-  && !defined(__CYGWIN__)
-  reactor_.init_task();
-#endif // !defined(ASIO_WINDOWS)
-       //   && !defined(ASIO_WINDOWS_RUNTIME)
-       //   && !defined(__CYGWIN__)
-
-  for (int i = 0; i < max_signal_number; ++i)
-    registrations_[i] = 0;
-
-  add_service(this);
-}
-
-signal_set_service::~signal_set_service()
-{
-  remove_service(this);
-}
-
-void signal_set_service::shutdown()
-{
-  remove_service(this);
-
-  op_queue<operation> ops;
-
-  for (int i = 0; i < max_signal_number; ++i)
-  {
-    registration* reg = registrations_[i];
-    while (reg)
-    {
-      ops.push(*reg->queue_);
-      reg = reg->next_in_table_;
-    }
-  }
-
-  io_context_.abandon_operations(ops);
-}
-
-void signal_set_service::notify_fork(
-    asio::io_context::fork_event fork_ev)
-{
-#if !defined(ASIO_WINDOWS) \
-  && !defined(ASIO_WINDOWS_RUNTIME) \
-  && !defined(__CYGWIN__)
-  signal_state* state = get_signal_state();
-  static_mutex::scoped_lock lock(state->mutex_);
-
-  switch (fork_ev)
-  {
-  case asio::io_context::fork_prepare:
-    {
-      int read_descriptor = state->read_descriptor_;
-      state->fork_prepared_ = true;
-      lock.unlock();
-      reactor_.deregister_internal_descriptor(read_descriptor, reactor_data_);
-      reactor_.cleanup_descriptor_data(reactor_data_);
-    }
-    break;
-  case asio::io_context::fork_parent:
-    if (state->fork_prepared_)
-    {
-      int read_descriptor = state->read_descriptor_;
-      state->fork_prepared_ = false;
-      lock.unlock();
-      reactor_.register_internal_descriptor(reactor::read_op,
-          read_descriptor, reactor_data_, new pipe_read_op);
-    }
-    break;
-  case asio::io_context::fork_child:
-    if (state->fork_prepared_)
-    {
-      asio::detail::signal_blocker blocker;
-      close_descriptors();
-      open_descriptors();
-      int read_descriptor = state->read_descriptor_;
-      state->fork_prepared_ = false;
-      lock.unlock();
-      reactor_.register_internal_descriptor(reactor::read_op,
-          read_descriptor, reactor_data_, new pipe_read_op);
-    }
-    break;
-  default:
-    break;
-  }
-#else // !defined(ASIO_WINDOWS)
-      //   && !defined(ASIO_WINDOWS_RUNTIME)
-      //   && !defined(__CYGWIN__)
-  (void)fork_ev;
-#endif // !defined(ASIO_WINDOWS)
-       //   && !defined(ASIO_WINDOWS_RUNTIME)
-       //   && !defined(__CYGWIN__)
-}
-
-void signal_set_service::construct(
-    signal_set_service::implementation_type& impl)
-{
-  impl.signals_ = 0;
-}
-
-void signal_set_service::destroy(
-    signal_set_service::implementation_type& impl)
-{
-  asio::error_code ignored_ec;
-  clear(impl, ignored_ec);
-  cancel(impl, ignored_ec);
-}
-
-asio::error_code signal_set_service::add(
-    signal_set_service::implementation_type& impl,
-    int signal_number, asio::error_code& ec)
-{
-  // Check that the signal number is valid.
-  if (signal_number < 0 || signal_number >= max_signal_number)
-  {
-    ec = asio::error::invalid_argument;
-    return ec;
-  }
-
-  signal_state* state = get_signal_state();
-  static_mutex::scoped_lock lock(state->mutex_);
-
-  // Find the appropriate place to insert the registration.
-  registration** insertion_point = &impl.signals_;
-  registration* next = impl.signals_;
-  while (next && next->signal_number_ < signal_number)
-  {
-    insertion_point = &next->next_in_set_;
-    next = next->next_in_set_;
-  }
-
-  // Only do something if the signal is not already registered.
-  if (next == 0 || next->signal_number_ != signal_number)
-  {
-    registration* new_registration = new registration;
-
-#if defined(ASIO_HAS_SIGNAL) || defined(ASIO_HAS_SIGACTION)
-    // Register for the signal if we're the first.
-    if (state->registration_count_[signal_number] == 0)
-    {
-# if defined(ASIO_HAS_SIGACTION)
-      using namespace std; // For memset.
-      struct sigaction sa;
-      memset(&sa, 0, sizeof(sa));
-      sa.sa_handler = asio_signal_handler;
-      sigfillset(&sa.sa_mask);
-      if (::sigaction(signal_number, &sa, 0) == -1)
-# else // defined(ASIO_HAS_SIGACTION)
-      if (::signal(signal_number, asio_signal_handler) == SIG_ERR)
-# endif // defined(ASIO_HAS_SIGACTION)
-      {
-# if defined(ASIO_WINDOWS) || defined(__CYGWIN__)
-        ec = asio::error::invalid_argument;
-# else // defined(ASIO_WINDOWS) || defined(__CYGWIN__)
-        ec = asio::error_code(errno,
-            asio::error::get_system_category());
-# endif // defined(ASIO_WINDOWS) || defined(__CYGWIN__)
-        delete new_registration;
-        return ec;
-      }
-    }
-#endif // defined(ASIO_HAS_SIGNAL) || defined(ASIO_HAS_SIGACTION)
-
-    // Record the new registration in the set.
-    new_registration->signal_number_ = signal_number;
-    new_registration->queue_ = &impl.queue_;
-    new_registration->next_in_set_ = next;
-    *insertion_point = new_registration;
-
-    // Insert registration into the registration table.
-    new_registration->next_in_table_ = registrations_[signal_number];
-    if (registrations_[signal_number])
-      registrations_[signal_number]->prev_in_table_ = new_registration;
-    registrations_[signal_number] = new_registration;
-
-    ++state->registration_count_[signal_number];
-  }
-
-  ec = asio::error_code();
-  return ec;
-}
-
-asio::error_code signal_set_service::remove(
-    signal_set_service::implementation_type& impl,
-    int signal_number, asio::error_code& ec)
-{
-  // Check that the signal number is valid.
-  if (signal_number < 0 || signal_number >= max_signal_number)
-  {
-    ec = asio::error::invalid_argument;
-    return ec;
-  }
-
-  signal_state* state = get_signal_state();
-  static_mutex::scoped_lock lock(state->mutex_);
-
-  // Find the signal number in the list of registrations.
-  registration** deletion_point = &impl.signals_;
-  registration* reg = impl.signals_;
-  while (reg && reg->signal_number_ < signal_number)
-  {
-    deletion_point = &reg->next_in_set_;
-    reg = reg->next_in_set_;
-  }
-
-  if (reg != 0 && reg->signal_number_ == signal_number)
-  {
-#if defined(ASIO_HAS_SIGNAL) || defined(ASIO_HAS_SIGACTION)
-    // Set signal handler back to the default if we're the last.
-    if (state->registration_count_[signal_number] == 1)
-    {
-# if defined(ASIO_HAS_SIGACTION)
-      using namespace std; // For memset.
-      struct sigaction sa;
-      memset(&sa, 0, sizeof(sa));
-      sa.sa_handler = SIG_DFL;
-      if (::sigaction(signal_number, &sa, 0) == -1)
-# else // defined(ASIO_HAS_SIGACTION)
-      if (::signal(signal_number, SIG_DFL) == SIG_ERR)
-# endif // defined(ASIO_HAS_SIGACTION)
-      {
-# if defined(ASIO_WINDOWS) || defined(__CYGWIN__)
-        ec = asio::error::invalid_argument;
-# else // defined(ASIO_WINDOWS) || defined(__CYGWIN__)
-        ec = asio::error_code(errno,
-            asio::error::get_system_category());
-# endif // defined(ASIO_WINDOWS) || defined(__CYGWIN__)
-        return ec;
-      }
-    }
-#endif // defined(ASIO_HAS_SIGNAL) || defined(ASIO_HAS_SIGACTION)
-
-    // Remove the registration from the set.
-    *deletion_point = reg->next_in_set_;
-
-    // Remove the registration from the registration table.
-    if (registrations_[signal_number] == reg)
-      registrations_[signal_number] = reg->next_in_table_;
-    if (reg->prev_in_table_)
-      reg->prev_in_table_->next_in_table_ = reg->next_in_table_;
-    if (reg->next_in_table_)
-      reg->next_in_table_->prev_in_table_ = reg->prev_in_table_;
-
-    --state->registration_count_[signal_number];
-
-    delete reg;
-  }
-
-  ec = asio::error_code();
-  return ec;
-}
-
-asio::error_code signal_set_service::clear(
-    signal_set_service::implementation_type& impl,
-    asio::error_code& ec)
-{
-  signal_state* state = get_signal_state();
-  static_mutex::scoped_lock lock(state->mutex_);
-
-  while (registration* reg = impl.signals_)
-  {
-#if defined(ASIO_HAS_SIGNAL) || defined(ASIO_HAS_SIGACTION)
-    // Set signal handler back to the default if we're the last.
-    if (state->registration_count_[reg->signal_number_] == 1)
-    {
-# if defined(ASIO_HAS_SIGACTION)
-      using namespace std; // For memset.
-      struct sigaction sa;
-      memset(&sa, 0, sizeof(sa));
-      sa.sa_handler = SIG_DFL;
-      if (::sigaction(reg->signal_number_, &sa, 0) == -1)
-# else // defined(ASIO_HAS_SIGACTION)
-      if (::signal(reg->signal_number_, SIG_DFL) == SIG_ERR)
-# endif // defined(ASIO_HAS_SIGACTION)
-      {
-# if defined(ASIO_WINDOWS) || defined(__CYGWIN__)
-        ec = asio::error::invalid_argument;
-# else // defined(ASIO_WINDOWS) || defined(__CYGWIN__)
-        ec = asio::error_code(errno,
-            asio::error::get_system_category());
-# endif // defined(ASIO_WINDOWS) || defined(__CYGWIN__)
-        return ec;
-      }
-    }
-#endif // defined(ASIO_HAS_SIGNAL) || defined(ASIO_HAS_SIGACTION)
-
-    // Remove the registration from the registration table.
-    if (registrations_[reg->signal_number_] == reg)
-      registrations_[reg->signal_number_] = reg->next_in_table_;
-    if (reg->prev_in_table_)
-      reg->prev_in_table_->next_in_table_ = reg->next_in_table_;
-    if (reg->next_in_table_)
-      reg->next_in_table_->prev_in_table_ = reg->prev_in_table_;
-
-    --state->registration_count_[reg->signal_number_];
-
-    impl.signals_ = reg->next_in_set_;
-    delete reg;
-  }
-
-  ec = asio::error_code();
-  return ec;
-}
-
-asio::error_code signal_set_service::cancel(
-    signal_set_service::implementation_type& impl,
-    asio::error_code& ec)
-{
-  ASIO_HANDLER_OPERATION((io_context_.context(),
-        "signal_set", &impl, 0, "cancel"));
-
-  op_queue<operation> ops;
-  {
-    signal_state* state = get_signal_state();
-    static_mutex::scoped_lock lock(state->mutex_);
-
-    while (signal_op* op = impl.queue_.front())
-    {
-      op->ec_ = asio::error::operation_aborted;
-      impl.queue_.pop();
-      ops.push(op);
-    }
-  }
-
-  io_context_.post_deferred_completions(ops);
-
-  ec = asio::error_code();
-  return ec;
-}
-
-void signal_set_service::deliver_signal(int signal_number)
-{
-  signal_state* state = get_signal_state();
-  static_mutex::scoped_lock lock(state->mutex_);
-
-  signal_set_service* service = state->service_list_;
-  while (service)
-  {
-    op_queue<operation> ops;
-
-    registration* reg = service->registrations_[signal_number];
-    while (reg)
-    {
-      if (reg->queue_->empty())
-      {
-        ++reg->undelivered_;
-      }
-      else
-      {
-        while (signal_op* op = reg->queue_->front())
-        {
-          op->signal_number_ = signal_number;
-          reg->queue_->pop();
-          ops.push(op);
-        }
-      }
-
-      reg = reg->next_in_table_;
-    }
-
-    service->io_context_.post_deferred_completions(ops);
-
-    service = service->next_;
-  }
-}
-
-void signal_set_service::add_service(signal_set_service* service)
-{
-  signal_state* state = get_signal_state();
-  static_mutex::scoped_lock lock(state->mutex_);
-
-#if !defined(ASIO_WINDOWS) && !defined(__CYGWIN__)
-  // If this is the first service to be created, open a new pipe.
-  if (state->service_list_ == 0)
-    open_descriptors();
-#endif // !defined(ASIO_WINDOWS) && !defined(__CYGWIN__)
-
-  // If an io_context object is thread-unsafe then it must be the only
-  // io_context used to create signal_set objects.
-  if (state->service_list_ != 0)
-  {
-    if (!ASIO_CONCURRENCY_HINT_IS_LOCKING(SCHEDULER,
-          service->io_context_.concurrency_hint())
-        || !ASIO_CONCURRENCY_HINT_IS_LOCKING(SCHEDULER,
-          state->service_list_->io_context_.concurrency_hint()))
-    {
-      std::logic_error ex(
-          "Thread-unsafe io_context objects require "
-          "exclusive access to signal handling.");
-      asio::detail::throw_exception(ex);
-    }
-  }
-
-  // Insert service into linked list of all services.
-  service->next_ = state->service_list_;
-  service->prev_ = 0;
-  if (state->service_list_)
-    state->service_list_->prev_ = service;
-  state->service_list_ = service;
-
-#if !defined(ASIO_WINDOWS) \
-  && !defined(ASIO_WINDOWS_RUNTIME) \
-  && !defined(__CYGWIN__)
-  // Register for pipe readiness notifications.
-  int read_descriptor = state->read_descriptor_;
-  lock.unlock();
-  service->reactor_.register_internal_descriptor(reactor::read_op,
-      read_descriptor, service->reactor_data_, new pipe_read_op);
-#endif // !defined(ASIO_WINDOWS)
-       //   && !defined(ASIO_WINDOWS_RUNTIME)
-       //   && !defined(__CYGWIN__)
-}
-
-void signal_set_service::remove_service(signal_set_service* service)
-{
-  signal_state* state = get_signal_state();
-  static_mutex::scoped_lock lock(state->mutex_);
-
-  if (service->next_ || service->prev_ || state->service_list_ == service)
-  {
-#if !defined(ASIO_WINDOWS) \
-  && !defined(ASIO_WINDOWS_RUNTIME) \
-  && !defined(__CYGWIN__)
-    // Disable the pipe readiness notifications.
-    int read_descriptor = state->read_descriptor_;
-    lock.unlock();
-    service->reactor_.deregister_internal_descriptor(
-        read_descriptor, service->reactor_data_);
-    service->reactor_.cleanup_descriptor_data(service->reactor_data_);
-    lock.lock();
-#endif // !defined(ASIO_WINDOWS)
-       //   && !defined(ASIO_WINDOWS_RUNTIME)
-       //   && !defined(__CYGWIN__)
-
-    // Remove service from linked list of all services.
-    if (state->service_list_ == service)
-      state->service_list_ = service->next_;
-    if (service->prev_)
-      service->prev_->next_ = service->next_;
-    if (service->next_)
-      service->next_->prev_= service->prev_;
-    service->next_ = 0;
-    service->prev_ = 0;
-
-#if !defined(ASIO_WINDOWS) && !defined(__CYGWIN__)
-    // If this is the last service to be removed, close the pipe.
-    if (state->service_list_ == 0)
-      close_descriptors();
-#endif // !defined(ASIO_WINDOWS) && !defined(__CYGWIN__)
-  }
-}
-
-void signal_set_service::open_descriptors()
-{
-#if !defined(ASIO_WINDOWS) \
-  && !defined(ASIO_WINDOWS_RUNTIME) \
-  && !defined(__CYGWIN__)
-  signal_state* state = get_signal_state();
-
-  int pipe_fds[2];
-  if (::pipe(pipe_fds) == 0)
-  {
-    state->read_descriptor_ = pipe_fds[0];
-    ::fcntl(state->read_descriptor_, F_SETFL, O_NONBLOCK);
-
-    state->write_descriptor_ = pipe_fds[1];
-    ::fcntl(state->write_descriptor_, F_SETFL, O_NONBLOCK);
-
-#if defined(FD_CLOEXEC)
-    ::fcntl(state->read_descriptor_, F_SETFD, FD_CLOEXEC);
-    ::fcntl(state->write_descriptor_, F_SETFD, FD_CLOEXEC);
-#endif // defined(FD_CLOEXEC)
-  }
-  else
-  {
-    asio::error_code ec(errno,
-        asio::error::get_system_category());
-    asio::detail::throw_error(ec, "signal_set_service pipe");
-  }
-#endif // !defined(ASIO_WINDOWS)
-       //   && !defined(ASIO_WINDOWS_RUNTIME)
-       //   && !defined(__CYGWIN__)
-}
-
-void signal_set_service::close_descriptors()
-{
-#if !defined(ASIO_WINDOWS) \
-  && !defined(ASIO_WINDOWS_RUNTIME) \
-  && !defined(__CYGWIN__)
-  signal_state* state = get_signal_state();
-
-  if (state->read_descriptor_ != -1)
-    ::close(state->read_descriptor_);
-  state->read_descriptor_ = -1;
-
-  if (state->write_descriptor_ != -1)
-    ::close(state->write_descriptor_);
-  state->write_descriptor_ = -1;
-#endif // !defined(ASIO_WINDOWS)
-       //   && !defined(ASIO_WINDOWS_RUNTIME)
-       //   && !defined(__CYGWIN__)
-}
-
-void signal_set_service::start_wait_op(
-    signal_set_service::implementation_type& impl, signal_op* op)
-{
-  io_context_.work_started();
-
-  signal_state* state = get_signal_state();
-  static_mutex::scoped_lock lock(state->mutex_);
-
-  registration* reg = impl.signals_;
-  while (reg)
-  {
-    if (reg->undelivered_ > 0)
-    {
-      --reg->undelivered_;
-      op->signal_number_ = reg->signal_number_;
-      io_context_.post_deferred_completion(op);
-      return;
-    }
-
-    reg = reg->next_in_set_;
-  }
-
-  impl.queue_.push(op);
-}
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // ASIO_DETAIL_IMPL_SIGNAL_SET_SERVICE_IPP
diff --git a/lib/asio/detail/impl/socket_ops.ipp b/lib/asio/detail/impl/socket_ops.ipp
deleted file mode 100644
index 5e74733..0000000
--- a/lib/asio/detail/impl/socket_ops.ipp
+++ /dev/null
@@ -1,3571 +0,0 @@
-//
-// detail/impl/socket_ops.ipp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_SOCKET_OPS_IPP
-#define ASIO_DETAIL_SOCKET_OPS_IPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-
-#include <cctype>
-#include <cstdio>
-#include <cstdlib>
-#include <cstring>
-#include <cerrno>
-#include <new>
-#include "asio/detail/assert.hpp"
-#include "asio/detail/socket_ops.hpp"
-#include "asio/error.hpp"
-
-#if defined(ASIO_WINDOWS_RUNTIME)
-# include <codecvt>
-# include <locale>
-# include <string>
-#endif // defined(ASIO_WINDOWS_RUNTIME)
-
-#if defined(ASIO_WINDOWS) || defined(__CYGWIN__) \
-  || defined(__MACH__) && defined(__APPLE__)
-# if defined(ASIO_HAS_PTHREADS)
-#  include <pthread.h>
-# endif // defined(ASIO_HAS_PTHREADS)
-#endif // defined(ASIO_WINDOWS) || defined(__CYGWIN__)
-       // || defined(__MACH__) && defined(__APPLE__)
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-namespace socket_ops {
-
-#if !defined(ASIO_WINDOWS_RUNTIME)
-
-#if defined(ASIO_WINDOWS) || defined(__CYGWIN__)
-struct msghdr { int msg_namelen; };
-#endif // defined(ASIO_WINDOWS) || defined(__CYGWIN__)
-
-#if defined(__hpux)
-// HP-UX doesn't declare these functions extern "C", so they are declared again
-// here to avoid linker errors about undefined symbols.
-extern "C" char* if_indextoname(unsigned int, char*);
-extern "C" unsigned int if_nametoindex(const char*);
-#endif // defined(__hpux)
-
-#endif // !defined(ASIO_WINDOWS_RUNTIME)
-
-inline void clear_last_error()
-{
-#if defined(ASIO_WINDOWS) || defined(__CYGWIN__)
-  WSASetLastError(0);
-#else
-  errno = 0;
-#endif
-}
-
-#if !defined(ASIO_WINDOWS_RUNTIME)
-
-template <typename ReturnType>
-inline ReturnType error_wrapper(ReturnType return_value,
-    asio::error_code& ec)
-{
-#if defined(ASIO_WINDOWS) || defined(__CYGWIN__)
-  ec = asio::error_code(WSAGetLastError(),
-      asio::error::get_system_category());
-#else
-  ec = asio::error_code(errno,
-      asio::error::get_system_category());
-#endif
-  return return_value;
-}
-
-template <typename SockLenType>
-inline socket_type call_accept(SockLenType msghdr::*,
-    socket_type s, socket_addr_type* addr, std::size_t* addrlen)
-{
-  SockLenType tmp_addrlen = addrlen ? (SockLenType)*addrlen : 0;
-  socket_type result = ::accept(s, addr, addrlen ? &tmp_addrlen : 0);
-  if (addrlen)
-    *addrlen = (std::size_t)tmp_addrlen;
-  return result;
-}
-
-socket_type accept(socket_type s, socket_addr_type* addr,
-    std::size_t* addrlen, asio::error_code& ec)
-{
-  if (s == invalid_socket)
-  {
-    ec = asio::error::bad_descriptor;
-    return invalid_socket;
-  }
-
-  clear_last_error();
-
-  socket_type new_s = error_wrapper(call_accept(
-        &msghdr::msg_namelen, s, addr, addrlen), ec);
-  if (new_s == invalid_socket)
-    return new_s;
-
-#if defined(__MACH__) && defined(__APPLE__) || defined(__FreeBSD__)
-  int optval = 1;
-  int result = error_wrapper(::setsockopt(new_s,
-        SOL_SOCKET, SO_NOSIGPIPE, &optval, sizeof(optval)), ec);
-  if (result != 0)
-  {
-    ::close(new_s);
-    return invalid_socket;
-  }
-#endif
-
-  ec = asio::error_code();
-  return new_s;
-}
-
-socket_type sync_accept(socket_type s, state_type state,
-    socket_addr_type* addr, std::size_t* addrlen, asio::error_code& ec)
-{
-  // Accept a socket.
-  for (;;)
-  {
-    // Try to complete the operation without blocking.
-    socket_type new_socket = socket_ops::accept(s, addr, addrlen, ec);
-
-    // Check if operation succeeded.
-    if (new_socket != invalid_socket)
-      return new_socket;
-
-    // Operation failed.
-    if (ec == asio::error::would_block
-        || ec == asio::error::try_again)
-    {
-      if (state & user_set_non_blocking)
-        return invalid_socket;
-      // Fall through to retry operation.
-    }
-    else if (ec == asio::error::connection_aborted)
-    {
-      if (state & enable_connection_aborted)
-        return invalid_socket;
-      // Fall through to retry operation.
-    }
-#if defined(EPROTO)
-    else if (ec.value() == EPROTO)
-    {
-      if (state & enable_connection_aborted)
-        return invalid_socket;
-      // Fall through to retry operation.
-    }
-#endif // defined(EPROTO)
-    else
-      return invalid_socket;
-
-    // Wait for socket to become ready.
-    if (socket_ops::poll_read(s, 0, -1, ec) < 0)
-      return invalid_socket;
-  }
-}
-
-#if defined(ASIO_HAS_IOCP)
-
-void complete_iocp_accept(socket_type s,
-    void* output_buffer, DWORD address_length,
-    socket_addr_type* addr, std::size_t* addrlen,
-    socket_type new_socket, asio::error_code& ec)
-{
-  // Map non-portable errors to their portable counterparts.
-  if (ec.value() == ERROR_NETNAME_DELETED)
-    ec = asio::error::connection_aborted;
-
-  if (!ec)
-  {
-    // Get the address of the peer.
-    if (addr && addrlen)
-    {
-      LPSOCKADDR local_addr = 0;
-      int local_addr_length = 0;
-      LPSOCKADDR remote_addr = 0;
-      int remote_addr_length = 0;
-      GetAcceptExSockaddrs(output_buffer, 0, address_length,
-          address_length, &local_addr, &local_addr_length,
-          &remote_addr, &remote_addr_length);
-      if (static_cast<std::size_t>(remote_addr_length) > *addrlen)
-      {
-        ec = asio::error::invalid_argument;
-      }
-      else
-      {
-        using namespace std; // For memcpy.
-        memcpy(addr, remote_addr, remote_addr_length);
-        *addrlen = static_cast<std::size_t>(remote_addr_length);
-      }
-    }
-
-    // Need to set the SO_UPDATE_ACCEPT_CONTEXT option so that getsockname
-    // and getpeername will work on the accepted socket.
-    SOCKET update_ctx_param = s;
-    socket_ops::state_type state = 0;
-    socket_ops::setsockopt(new_socket, state,
-          SOL_SOCKET, SO_UPDATE_ACCEPT_CONTEXT,
-          &update_ctx_param, sizeof(SOCKET), ec);
-  }
-}
-
-#else // defined(ASIO_HAS_IOCP)
-
-bool non_blocking_accept(socket_type s,
-    state_type state, socket_addr_type* addr, std::size_t* addrlen,
-    asio::error_code& ec, socket_type& new_socket)
-{
-  for (;;)
-  {
-    // Accept the waiting connection.
-    new_socket = socket_ops::accept(s, addr, addrlen, ec);
-
-    // Check if operation succeeded.
-    if (new_socket != invalid_socket)
-      return true;
-
-    // Retry operation if interrupted by signal.
-    if (ec == asio::error::interrupted)
-      continue;
-
-    // Operation failed.
-    if (ec == asio::error::would_block
-        || ec == asio::error::try_again)
-    {
-      // Fall through to retry operation.
-    }
-    else if (ec == asio::error::connection_aborted)
-    {
-      if (state & enable_connection_aborted)
-        return true;
-      // Fall through to retry operation.
-    }
-#if defined(EPROTO)
-    else if (ec.value() == EPROTO)
-    {
-      if (state & enable_connection_aborted)
-        return true;
-      // Fall through to retry operation.
-    }
-#endif // defined(EPROTO)
-    else
-      return true;
-
-    return false;
-  }
-}
-
-#endif // defined(ASIO_HAS_IOCP)
-
-template <typename SockLenType>
-inline int call_bind(SockLenType msghdr::*,
-    socket_type s, const socket_addr_type* addr, std::size_t addrlen)
-{
-  return ::bind(s, addr, (SockLenType)addrlen);
-}
-
-int bind(socket_type s, const socket_addr_type* addr,
-    std::size_t addrlen, asio::error_code& ec)
-{
-  if (s == invalid_socket)
-  {
-    ec = asio::error::bad_descriptor;
-    return socket_error_retval;
-  }
-
-  clear_last_error();
-  int result = error_wrapper(call_bind(
-        &msghdr::msg_namelen, s, addr, addrlen), ec);
-  if (result == 0)
-    ec = asio::error_code();
-  return result;
-}
-
-int close(socket_type s, state_type& state,
-    bool destruction, asio::error_code& ec)
-{
-  int result = 0;
-  if (s != invalid_socket)
-  {
-    // We don't want the destructor to block, so set the socket to linger in
-    // the background. If the user doesn't like this behaviour then they need
-    // to explicitly close the socket.
-    if (destruction && (state & user_set_linger))
-    {
-      ::linger opt;
-      opt.l_onoff = 0;
-      opt.l_linger = 0;
-      asio::error_code ignored_ec;
-      socket_ops::setsockopt(s, state, SOL_SOCKET,
-          SO_LINGER, &opt, sizeof(opt), ignored_ec);
-    }
-
-    clear_last_error();
-#if defined(ASIO_WINDOWS) || defined(__CYGWIN__)
-    result = error_wrapper(::closesocket(s), ec);
-#else // defined(ASIO_WINDOWS) || defined(__CYGWIN__)
-    result = error_wrapper(::close(s), ec);
-#endif // defined(ASIO_WINDOWS) || defined(__CYGWIN__)
-
-    if (result != 0
-        && (ec == asio::error::would_block
-          || ec == asio::error::try_again))
-    {
-      // According to UNIX Network Programming Vol. 1, it is possible for
-      // close() to fail with EWOULDBLOCK under certain circumstances. What
-      // isn't clear is the state of the descriptor after this error. The one
-      // current OS where this behaviour is seen, Windows, says that the socket
-      // remains open. Therefore we'll put the descriptor back into blocking
-      // mode and have another attempt at closing it.
-#if defined(ASIO_WINDOWS) || defined(__CYGWIN__)
-      ioctl_arg_type arg = 0;
-      ::ioctlsocket(s, FIONBIO, &arg);
-#else // defined(ASIO_WINDOWS) || defined(__CYGWIN__)
-# if defined(__SYMBIAN32__)
-      int flags = ::fcntl(s, F_GETFL, 0);
-      if (flags >= 0)
-        ::fcntl(s, F_SETFL, flags & ~O_NONBLOCK);
-# else // defined(__SYMBIAN32__)
-      ioctl_arg_type arg = 0;
-      ::ioctl(s, FIONBIO, &arg);
-# endif // defined(__SYMBIAN32__)
-#endif // defined(ASIO_WINDOWS) || defined(__CYGWIN__)
-      state &= ~non_blocking;
-
-      clear_last_error();
-#if defined(ASIO_WINDOWS) || defined(__CYGWIN__)
-      result = error_wrapper(::closesocket(s), ec);
-#else // defined(ASIO_WINDOWS) || defined(__CYGWIN__)
-      result = error_wrapper(::close(s), ec);
-#endif // defined(ASIO_WINDOWS) || defined(__CYGWIN__)
-    }
-  }
-
-  if (result == 0)
-    ec = asio::error_code();
-  return result;
-}
-
-bool set_user_non_blocking(socket_type s,
-    state_type& state, bool value, asio::error_code& ec)
-{
-  if (s == invalid_socket)
-  {
-    ec = asio::error::bad_descriptor;
-    return false;
-  }
-
-  clear_last_error();
-#if defined(ASIO_WINDOWS) || defined(__CYGWIN__)
-  ioctl_arg_type arg = (value ? 1 : 0);
-  int result = error_wrapper(::ioctlsocket(s, FIONBIO, &arg), ec);
-#elif defined(__SYMBIAN32__)
-  int result = error_wrapper(::fcntl(s, F_GETFL, 0), ec);
-  if (result >= 0)
-  {
-    clear_last_error();
-    int flag = (value ? (result | O_NONBLOCK) : (result & ~O_NONBLOCK));
-    result = error_wrapper(::fcntl(s, F_SETFL, flag), ec);
-  }
-#else
-  ioctl_arg_type arg = (value ? 1 : 0);
-  int result = error_wrapper(::ioctl(s, FIONBIO, &arg), ec);
-#endif
-
-  if (result >= 0)
-  {
-    ec = asio::error_code();
-    if (value)
-      state |= user_set_non_blocking;
-    else
-    {
-      // Clearing the user-set non-blocking mode always overrides any
-      // internally-set non-blocking flag. Any subsequent asynchronous
-      // operations will need to re-enable non-blocking I/O.
-      state &= ~(user_set_non_blocking | internal_non_blocking);
-    }
-    return true;
-  }
-
-  return false;
-}
-
-bool set_internal_non_blocking(socket_type s,
-    state_type& state, bool value, asio::error_code& ec)
-{
-  if (s == invalid_socket)
-  {
-    ec = asio::error::bad_descriptor;
-    return false;
-  }
-
-  if (!value && (state & user_set_non_blocking))
-  {
-    // It does not make sense to clear the internal non-blocking flag if the
-    // user still wants non-blocking behaviour. Return an error and let the
-    // caller figure out whether to update the user-set non-blocking flag.
-    ec = asio::error::invalid_argument;
-    return false;
-  }
-
-  clear_last_error();
-#if defined(ASIO_WINDOWS) || defined(__CYGWIN__)
-  ioctl_arg_type arg = (value ? 1 : 0);
-  int result = error_wrapper(::ioctlsocket(s, FIONBIO, &arg), ec);
-#elif defined(__SYMBIAN32__)
-  int result = error_wrapper(::fcntl(s, F_GETFL, 0), ec);
-  if (result >= 0)
-  {
-    clear_last_error();
-    int flag = (value ? (result | O_NONBLOCK) : (result & ~O_NONBLOCK));
-    result = error_wrapper(::fcntl(s, F_SETFL, flag), ec);
-  }
-#else
-  ioctl_arg_type arg = (value ? 1 : 0);
-  int result = error_wrapper(::ioctl(s, FIONBIO, &arg), ec);
-#endif
-
-  if (result >= 0)
-  {
-    ec = asio::error_code();
-    if (value)
-      state |= internal_non_blocking;
-    else
-      state &= ~internal_non_blocking;
-    return true;
-  }
-
-  return false;
-}
-
-int shutdown(socket_type s, int what, asio::error_code& ec)
-{
-  if (s == invalid_socket)
-  {
-    ec = asio::error::bad_descriptor;
-    return socket_error_retval;
-  }
-
-  clear_last_error();
-  int result = error_wrapper(::shutdown(s, what), ec);
-  if (result == 0)
-    ec = asio::error_code();
-  return result;
-}
-
-template <typename SockLenType>
-inline int call_connect(SockLenType msghdr::*,
-    socket_type s, const socket_addr_type* addr, std::size_t addrlen)
-{
-  return ::connect(s, addr, (SockLenType)addrlen);
-}
-
-int connect(socket_type s, const socket_addr_type* addr,
-    std::size_t addrlen, asio::error_code& ec)
-{
-  if (s == invalid_socket)
-  {
-    ec = asio::error::bad_descriptor;
-    return socket_error_retval;
-  }
-
-  clear_last_error();
-  int result = error_wrapper(call_connect(
-        &msghdr::msg_namelen, s, addr, addrlen), ec);
-  if (result == 0)
-    ec = asio::error_code();
-#if defined(__linux__)
-  else if (ec == asio::error::try_again)
-    ec = asio::error::no_buffer_space;
-#endif // defined(__linux__)
-  return result;
-}
-
-void sync_connect(socket_type s, const socket_addr_type* addr,
-    std::size_t addrlen, asio::error_code& ec)
-{
-  // Perform the connect operation.
-  socket_ops::connect(s, addr, addrlen, ec);
-  if (ec != asio::error::in_progress
-      && ec != asio::error::would_block)
-  {
-    // The connect operation finished immediately.
-    return;
-  }
-
-  // Wait for socket to become ready.
-  if (socket_ops::poll_connect(s, -1, ec) < 0)
-    return;
-
-  // Get the error code from the connect operation.
-  int connect_error = 0;
-  size_t connect_error_len = sizeof(connect_error);
-  if (socket_ops::getsockopt(s, 0, SOL_SOCKET, SO_ERROR,
-        &connect_error, &connect_error_len, ec) == socket_error_retval)
-    return;
-
-  // Return the result of the connect operation.
-  ec = asio::error_code(connect_error,
-      asio::error::get_system_category());
-}
-
-#if defined(ASIO_HAS_IOCP)
-
-void complete_iocp_connect(socket_type s, asio::error_code& ec)
-{
-  // Map non-portable errors to their portable counterparts.
-  switch (ec.value())
-  {
-  case ERROR_CONNECTION_REFUSED:
-    ec = asio::error::connection_refused;
-    break;
-  case ERROR_NETWORK_UNREACHABLE:
-    ec = asio::error::network_unreachable;
-    break;
-  case ERROR_HOST_UNREACHABLE:
-    ec = asio::error::host_unreachable;
-    break;
-  case ERROR_SEM_TIMEOUT:
-    ec = asio::error::timed_out;
-    break;
-  default:
-    break;
-  }
-
-  if (!ec)
-  {
-    // Need to set the SO_UPDATE_CONNECT_CONTEXT option so that getsockname
-    // and getpeername will work on the connected socket.
-    socket_ops::state_type state = 0;
-    const int so_update_connect_context = 0x7010;
-    socket_ops::setsockopt(s, state, SOL_SOCKET,
-        so_update_connect_context, 0, 0, ec);
-  }
-}
-
-#endif // defined(ASIO_HAS_IOCP)
-
-bool non_blocking_connect(socket_type s, asio::error_code& ec)
-{
-  // Check if the connect operation has finished. This is required since we may
-  // get spurious readiness notifications from the reactor.
-#if defined(ASIO_WINDOWS) \
-  || defined(__CYGWIN__) \
-  || defined(__SYMBIAN32__)
-  fd_set write_fds;
-  FD_ZERO(&write_fds);
-  FD_SET(s, &write_fds);
-  fd_set except_fds;
-  FD_ZERO(&except_fds);
-  FD_SET(s, &except_fds);
-  timeval zero_timeout;
-  zero_timeout.tv_sec = 0;
-  zero_timeout.tv_usec = 0;
-  int ready = ::select(s + 1, 0, &write_fds, &except_fds, &zero_timeout);
-#else // defined(ASIO_WINDOWS)
-      // || defined(__CYGWIN__)
-      // || defined(__SYMBIAN32__)
-  pollfd fds;
-  fds.fd = s;
-  fds.events = POLLOUT;
-  fds.revents = 0;
-  int ready = ::poll(&fds, 1, 0);
-#endif // defined(ASIO_WINDOWS)
-       // || defined(__CYGWIN__)
-       // || defined(__SYMBIAN32__)
-  if (ready == 0)
-  {
-    // The asynchronous connect operation is still in progress.
-    return false;
-  }
-
-  // Get the error code from the connect operation.
-  int connect_error = 0;
-  size_t connect_error_len = sizeof(connect_error);
-  if (socket_ops::getsockopt(s, 0, SOL_SOCKET, SO_ERROR,
-        &connect_error, &connect_error_len, ec) == 0)
-  {
-    if (connect_error)
-    {
-      ec = asio::error_code(connect_error,
-          asio::error::get_system_category());
-    }
-    else
-      ec = asio::error_code();
-  }
-
-  return true;
-}
-
-int socketpair(int af, int type, int protocol,
-    socket_type sv[2], asio::error_code& ec)
-{
-#if defined(ASIO_WINDOWS) || defined(__CYGWIN__)
-  (void)(af);
-  (void)(type);
-  (void)(protocol);
-  (void)(sv);
-  ec = asio::error::operation_not_supported;
-  return socket_error_retval;
-#else
-  clear_last_error();
-  int result = error_wrapper(::socketpair(af, type, protocol, sv), ec);
-  if (result == 0)
-    ec = asio::error_code();
-  return result;
-#endif
-}
-
-bool sockatmark(socket_type s, asio::error_code& ec)
-{
-  if (s == invalid_socket)
-  {
-    ec = asio::error::bad_descriptor;
-    return false;
-  }
-
-#if defined(SIOCATMARK)
-  ioctl_arg_type value = 0;
-# if defined(ASIO_WINDOWS) || defined(__CYGWIN__)
-  int result = error_wrapper(::ioctlsocket(s, SIOCATMARK, &value), ec);
-# else // defined(ASIO_WINDOWS) || defined(__CYGWIN__)
-  int result = error_wrapper(::ioctl(s, SIOCATMARK, &value), ec);
-# endif // defined(ASIO_WINDOWS) || defined(__CYGWIN__)
-  if (result == 0)
-    ec = asio::error_code();
-# if defined(ENOTTY)
-  if (ec.value() == ENOTTY)
-    ec = asio::error::not_socket;
-# endif // defined(ENOTTY)
-#else // defined(SIOCATMARK)
-  int value = error_wrapper(::sockatmark(s), ec);
-  if (value != -1)
-    ec = asio::error_code();
-#endif // defined(SIOCATMARK)
-
-  return ec ? false : value != 0;
-}
-
-size_t available(socket_type s, asio::error_code& ec)
-{
-  if (s == invalid_socket)
-  {
-    ec = asio::error::bad_descriptor;
-    return 0;
-  }
-
-  ioctl_arg_type value = 0;
-#if defined(ASIO_WINDOWS) || defined(__CYGWIN__)
-  int result = error_wrapper(::ioctlsocket(s, FIONREAD, &value), ec);
-#else // defined(ASIO_WINDOWS) || defined(__CYGWIN__)
-  int result = error_wrapper(::ioctl(s, FIONREAD, &value), ec);
-#endif // defined(ASIO_WINDOWS) || defined(__CYGWIN__)
-  if (result == 0)
-    ec = asio::error_code();
-#if defined(ENOTTY)
-  if (ec.value() == ENOTTY)
-    ec = asio::error::not_socket;
-#endif // defined(ENOTTY)
-
-  return ec ? static_cast<size_t>(0) : static_cast<size_t>(value);
-}
-
-int listen(socket_type s, int backlog, asio::error_code& ec)
-{
-  if (s == invalid_socket)
-  {
-    ec = asio::error::bad_descriptor;
-    return socket_error_retval;
-  }
-
-  clear_last_error();
-  int result = error_wrapper(::listen(s, backlog), ec);
-  if (result == 0)
-    ec = asio::error_code();
-  return result;
-}
-
-inline void init_buf_iov_base(void*& base, void* addr)
-{
-  base = addr;
-}
-
-template <typename T>
-inline void init_buf_iov_base(T& base, void* addr)
-{
-  base = static_cast<T>(addr);
-}
-
-#if defined(ASIO_WINDOWS) || defined(__CYGWIN__)
-typedef WSABUF buf;
-#else // defined(ASIO_WINDOWS) || defined(__CYGWIN__)
-typedef iovec buf;
-#endif // defined(ASIO_WINDOWS) || defined(__CYGWIN__)
-
-void init_buf(buf& b, void* data, size_t size)
-{
-#if defined(ASIO_WINDOWS) || defined(__CYGWIN__)
-  b.buf = static_cast<char*>(data);
-  b.len = static_cast<u_long>(size);
-#else // defined(ASIO_WINDOWS) || defined(__CYGWIN__)
-  init_buf_iov_base(b.iov_base, data);
-  b.iov_len = size;
-#endif // defined(ASIO_WINDOWS) || defined(__CYGWIN__)
-}
-
-void init_buf(buf& b, const void* data, size_t size)
-{
-#if defined(ASIO_WINDOWS) || defined(__CYGWIN__)
-  b.buf = static_cast<char*>(const_cast<void*>(data));
-  b.len = static_cast<u_long>(size);
-#else // defined(ASIO_WINDOWS) || defined(__CYGWIN__)
-  init_buf_iov_base(b.iov_base, const_cast<void*>(data));
-  b.iov_len = size;
-#endif // defined(ASIO_WINDOWS) || defined(__CYGWIN__)
-}
-
-inline void init_msghdr_msg_name(void*& name, socket_addr_type* addr)
-{
-  name = addr;
-}
-
-inline void init_msghdr_msg_name(void*& name, const socket_addr_type* addr)
-{
-  name = const_cast<socket_addr_type*>(addr);
-}
-
-template <typename T>
-inline void init_msghdr_msg_name(T& name, socket_addr_type* addr)
-{
-  name = reinterpret_cast<T>(addr);
-}
-
-template <typename T>
-inline void init_msghdr_msg_name(T& name, const socket_addr_type* addr)
-{
-  name = reinterpret_cast<T>(const_cast<socket_addr_type*>(addr));
-}
-
-signed_size_type recv(socket_type s, buf* bufs, size_t count,
-    int flags, asio::error_code& ec)
-{
-  clear_last_error();
-#if defined(ASIO_WINDOWS) || defined(__CYGWIN__)
-  // Receive some data.
-  DWORD recv_buf_count = static_cast<DWORD>(count);
-  DWORD bytes_transferred = 0;
-  DWORD recv_flags = flags;
-  int result = error_wrapper(::WSARecv(s, bufs,
-        recv_buf_count, &bytes_transferred, &recv_flags, 0, 0), ec);
-  if (ec.value() == ERROR_NETNAME_DELETED)
-    ec = asio::error::connection_reset;
-  else if (ec.value() == ERROR_PORT_UNREACHABLE)
-    ec = asio::error::connection_refused;
-  else if (ec.value() == WSAEMSGSIZE || ec.value() == ERROR_MORE_DATA)
-    ec.assign(0, ec.category());
-  if (result != 0)
-    return socket_error_retval;
-  ec = asio::error_code();
-  return bytes_transferred;
-#else // defined(ASIO_WINDOWS) || defined(__CYGWIN__)
-  msghdr msg = msghdr();
-  msg.msg_iov = bufs;
-  msg.msg_iovlen = static_cast<int>(count);
-  signed_size_type result = error_wrapper(::recvmsg(s, &msg, flags), ec);
-  if (result >= 0)
-    ec = asio::error_code();
-  return result;
-#endif // defined(ASIO_WINDOWS) || defined(__CYGWIN__)
-}
-
-size_t sync_recv(socket_type s, state_type state, buf* bufs,
-    size_t count, int flags, bool all_empty, asio::error_code& ec)
-{
-  if (s == invalid_socket)
-  {
-    ec = asio::error::bad_descriptor;
-    return 0;
-  }
-
-  // A request to read 0 bytes on a stream is a no-op.
-  if (all_empty && (state & stream_oriented))
-  {
-    ec = asio::error_code();
-    return 0;
-  }
-
-  // Read some data.
-  for (;;)
-  {
-    // Try to complete the operation without blocking.
-    signed_size_type bytes = socket_ops::recv(s, bufs, count, flags, ec);
-
-    // Check if operation succeeded.
-    if (bytes > 0)
-      return bytes;
-
-    // Check for EOF.
-    if ((state & stream_oriented) && bytes == 0)
-    {
-      ec = asio::error::eof;
-      return 0;
-    }
-
-    // Operation failed.
-    if ((state & user_set_non_blocking)
-        || (ec != asio::error::would_block
-          && ec != asio::error::try_again))
-      return 0;
-
-    // Wait for socket to become ready.
-    if (socket_ops::poll_read(s, 0, -1, ec) < 0)
-      return 0;
-  }
-}
-
-#if defined(ASIO_HAS_IOCP)
-
-void complete_iocp_recv(state_type state,
-    const weak_cancel_token_type& cancel_token, bool all_empty,
-    asio::error_code& ec, size_t bytes_transferred)
-{
-  // Map non-portable errors to their portable counterparts.
-  if (ec.value() == ERROR_NETNAME_DELETED)
-  {
-    if (cancel_token.expired())
-      ec = asio::error::operation_aborted;
-    else
-      ec = asio::error::connection_reset;
-  }
-  else if (ec.value() == ERROR_PORT_UNREACHABLE)
-  {
-    ec = asio::error::connection_refused;
-  }
-  else if (ec.value() == WSAEMSGSIZE || ec.value() == ERROR_MORE_DATA)
-  {
-    ec.assign(0, ec.category());
-  }
-
-  // Check for connection closed.
-  else if (!ec && bytes_transferred == 0
-      && (state & stream_oriented) != 0
-      && !all_empty)
-  {
-    ec = asio::error::eof;
-  }
-}
-
-#else // defined(ASIO_HAS_IOCP)
-
-bool non_blocking_recv(socket_type s,
-    buf* bufs, size_t count, int flags, bool is_stream,
-    asio::error_code& ec, size_t& bytes_transferred)
-{
-  for (;;)
-  {
-    // Read some data.
-    signed_size_type bytes = socket_ops::recv(s, bufs, count, flags, ec);
-
-    // Check for end of stream.
-    if (is_stream && bytes == 0)
-    {
-      ec = asio::error::eof;
-      return true;
-    }
-
-    // Retry operation if interrupted by signal.
-    if (ec == asio::error::interrupted)
-      continue;
-
-    // Check if we need to run the operation again.
-    if (ec == asio::error::would_block
-        || ec == asio::error::try_again)
-      return false;
-
-    // Operation is complete.
-    if (bytes >= 0)
-    {
-      ec = asio::error_code();
-      bytes_transferred = bytes;
-    }
-    else
-      bytes_transferred = 0;
-
-    return true;
-  }
-}
-
-#endif // defined(ASIO_HAS_IOCP)
-
-signed_size_type recvfrom(socket_type s, buf* bufs, size_t count,
-    int flags, socket_addr_type* addr, std::size_t* addrlen,
-    asio::error_code& ec)
-{
-  clear_last_error();
-#if defined(ASIO_WINDOWS) || defined(__CYGWIN__)
-  // Receive some data.
-  DWORD recv_buf_count = static_cast<DWORD>(count);
-  DWORD bytes_transferred = 0;
-  DWORD recv_flags = flags;
-  int tmp_addrlen = (int)*addrlen;
-  int result = error_wrapper(::WSARecvFrom(s, bufs, recv_buf_count,
-        &bytes_transferred, &recv_flags, addr, &tmp_addrlen, 0, 0), ec);
-  *addrlen = (std::size_t)tmp_addrlen;
-  if (ec.value() == ERROR_NETNAME_DELETED)
-    ec = asio::error::connection_reset;
-  else if (ec.value() == ERROR_PORT_UNREACHABLE)
-    ec = asio::error::connection_refused;
-  else if (ec.value() == WSAEMSGSIZE || ec.value() == ERROR_MORE_DATA)
-    ec.assign(0, ec.category());
-  if (result != 0)
-    return socket_error_retval;
-  ec = asio::error_code();
-  return bytes_transferred;
-#else // defined(ASIO_WINDOWS) || defined(__CYGWIN__)
-  msghdr msg = msghdr();
-  init_msghdr_msg_name(msg.msg_name, addr);
-  msg.msg_namelen = static_cast<int>(*addrlen);
-  msg.msg_iov = bufs;
-  msg.msg_iovlen = static_cast<int>(count);
-  signed_size_type result = error_wrapper(::recvmsg(s, &msg, flags), ec);
-  *addrlen = msg.msg_namelen;
-  if (result >= 0)
-    ec = asio::error_code();
-  return result;
-#endif // defined(ASIO_WINDOWS) || defined(__CYGWIN__)
-}
-
-size_t sync_recvfrom(socket_type s, state_type state, buf* bufs,
-    size_t count, int flags, socket_addr_type* addr,
-    std::size_t* addrlen, asio::error_code& ec)
-{
-  if (s == invalid_socket)
-  {
-    ec = asio::error::bad_descriptor;
-    return 0;
-  }
-
-  // Read some data.
-  for (;;)
-  {
-    // Try to complete the operation without blocking.
-    signed_size_type bytes = socket_ops::recvfrom(
-        s, bufs, count, flags, addr, addrlen, ec);
-
-    // Check if operation succeeded.
-    if (bytes >= 0)
-      return bytes;
-
-    // Operation failed.
-    if ((state & user_set_non_blocking)
-        || (ec != asio::error::would_block
-          && ec != asio::error::try_again))
-      return 0;
-
-    // Wait for socket to become ready.
-    if (socket_ops::poll_read(s, 0, -1, ec) < 0)
-      return 0;
-  }
-}
-
-#if defined(ASIO_HAS_IOCP)
-
-void complete_iocp_recvfrom(
-    const weak_cancel_token_type& cancel_token,
-    asio::error_code& ec)
-{
-  // Map non-portable errors to their portable counterparts.
-  if (ec.value() == ERROR_NETNAME_DELETED)
-  {
-    if (cancel_token.expired())
-      ec = asio::error::operation_aborted;
-    else
-      ec = asio::error::connection_reset;
-  }
-  else if (ec.value() == ERROR_PORT_UNREACHABLE)
-  {
-    ec = asio::error::connection_refused;
-  }
-  else if (ec.value() == WSAEMSGSIZE || ec.value() == ERROR_MORE_DATA)
-  {
-    ec.assign(0, ec.category());
-  }
-}
-
-#else // defined(ASIO_HAS_IOCP)
-
-bool non_blocking_recvfrom(socket_type s,
-    buf* bufs, size_t count, int flags,
-    socket_addr_type* addr, std::size_t* addrlen,
-    asio::error_code& ec, size_t& bytes_transferred)
-{
-  for (;;)
-  {
-    // Read some data.
-    signed_size_type bytes = socket_ops::recvfrom(
-        s, bufs, count, flags, addr, addrlen, ec);
-
-    // Retry operation if interrupted by signal.
-    if (ec == asio::error::interrupted)
-      continue;
-
-    // Check if we need to run the operation again.
-    if (ec == asio::error::would_block
-        || ec == asio::error::try_again)
-      return false;
-
-    // Operation is complete.
-    if (bytes >= 0)
-    {
-      ec = asio::error_code();
-      bytes_transferred = bytes;
-    }
-    else
-      bytes_transferred = 0;
-
-    return true;
-  }
-}
-
-#endif // defined(ASIO_HAS_IOCP)
-
-signed_size_type recvmsg(socket_type s, buf* bufs, size_t count,
-    int in_flags, int& out_flags, asio::error_code& ec)
-{
-  clear_last_error();
-#if defined(ASIO_WINDOWS) || defined(__CYGWIN__)
-  out_flags = 0;
-  return socket_ops::recv(s, bufs, count, in_flags, ec);
-#else // defined(ASIO_WINDOWS) || defined(__CYGWIN__)
-  msghdr msg = msghdr();
-  msg.msg_iov = bufs;
-  msg.msg_iovlen = static_cast<int>(count);
-  signed_size_type result = error_wrapper(::recvmsg(s, &msg, in_flags), ec);
-  if (result >= 0)
-  {
-    ec = asio::error_code();
-    out_flags = msg.msg_flags;
-  }
-  else
-    out_flags = 0;
-  return result;
-#endif // defined(ASIO_WINDOWS) || defined(__CYGWIN__)
-}
-
-size_t sync_recvmsg(socket_type s, state_type state,
-    buf* bufs, size_t count, int in_flags, int& out_flags,
-    asio::error_code& ec)
-{
-  if (s == invalid_socket)
-  {
-    ec = asio::error::bad_descriptor;
-    return 0;
-  }
-
-  // Read some data.
-  for (;;)
-  {
-    // Try to complete the operation without blocking.
-    signed_size_type bytes = socket_ops::recvmsg(
-        s, bufs, count, in_flags, out_flags, ec);
-
-    // Check if operation succeeded.
-    if (bytes >= 0)
-      return bytes;
-
-    // Operation failed.
-    if ((state & user_set_non_blocking)
-        || (ec != asio::error::would_block
-          && ec != asio::error::try_again))
-      return 0;
-
-    // Wait for socket to become ready.
-    if (socket_ops::poll_read(s, 0, -1, ec) < 0)
-      return 0;
-  }
-}
-
-#if defined(ASIO_HAS_IOCP)
-
-void complete_iocp_recvmsg(
-    const weak_cancel_token_type& cancel_token,
-    asio::error_code& ec)
-{
-  // Map non-portable errors to their portable counterparts.
-  if (ec.value() == ERROR_NETNAME_DELETED)
-  {
-    if (cancel_token.expired())
-      ec = asio::error::operation_aborted;
-    else
-      ec = asio::error::connection_reset;
-  }
-  else if (ec.value() == ERROR_PORT_UNREACHABLE)
-  {
-    ec = asio::error::connection_refused;
-  }
-  else if (ec.value() == WSAEMSGSIZE || ec.value() == ERROR_MORE_DATA)
-  {
-    ec.assign(0, ec.category());
-  }
-}
-
-#else // defined(ASIO_HAS_IOCP)
-
-bool non_blocking_recvmsg(socket_type s,
-    buf* bufs, size_t count, int in_flags, int& out_flags,
-    asio::error_code& ec, size_t& bytes_transferred)
-{
-  for (;;)
-  {
-    // Read some data.
-    signed_size_type bytes = socket_ops::recvmsg(
-        s, bufs, count, in_flags, out_flags, ec);
-
-    // Retry operation if interrupted by signal.
-    if (ec == asio::error::interrupted)
-      continue;
-
-    // Check if we need to run the operation again.
-    if (ec == asio::error::would_block
-        || ec == asio::error::try_again)
-      return false;
-
-    // Operation is complete.
-    if (bytes >= 0)
-    {
-      ec = asio::error_code();
-      bytes_transferred = bytes;
-    }
-    else
-      bytes_transferred = 0;
-
-    return true;
-  }
-}
-
-#endif // defined(ASIO_HAS_IOCP)
-
-signed_size_type send(socket_type s, const buf* bufs, size_t count,
-    int flags, asio::error_code& ec)
-{
-  clear_last_error();
-#if defined(ASIO_WINDOWS) || defined(__CYGWIN__)
-  // Send the data.
-  DWORD send_buf_count = static_cast<DWORD>(count);
-  DWORD bytes_transferred = 0;
-  DWORD send_flags = flags;
-  int result = error_wrapper(::WSASend(s, const_cast<buf*>(bufs),
-        send_buf_count, &bytes_transferred, send_flags, 0, 0), ec);
-  if (ec.value() == ERROR_NETNAME_DELETED)
-    ec = asio::error::connection_reset;
-  else if (ec.value() == ERROR_PORT_UNREACHABLE)
-    ec = asio::error::connection_refused;
-  if (result != 0)
-    return socket_error_retval;
-  ec = asio::error_code();
-  return bytes_transferred;
-#else // defined(ASIO_WINDOWS) || defined(__CYGWIN__)
-  msghdr msg = msghdr();
-  msg.msg_iov = const_cast<buf*>(bufs);
-  msg.msg_iovlen = static_cast<int>(count);
-#if defined(__linux__)
-  flags |= MSG_NOSIGNAL;
-#endif // defined(__linux__)
-  signed_size_type result = error_wrapper(::sendmsg(s, &msg, flags), ec);
-  if (result >= 0)
-    ec = asio::error_code();
-  return result;
-#endif // defined(ASIO_WINDOWS) || defined(__CYGWIN__)
-}
-
-size_t sync_send(socket_type s, state_type state, const buf* bufs,
-    size_t count, int flags, bool all_empty, asio::error_code& ec)
-{
-  if (s == invalid_socket)
-  {
-    ec = asio::error::bad_descriptor;
-    return 0;
-  }
-
-  // A request to write 0 bytes to a stream is a no-op.
-  if (all_empty && (state & stream_oriented))
-  {
-    ec = asio::error_code();
-    return 0;
-  }
-
-  // Read some data.
-  for (;;)
-  {
-    // Try to complete the operation without blocking.
-    signed_size_type bytes = socket_ops::send(s, bufs, count, flags, ec);
-
-    // Check if operation succeeded.
-    if (bytes >= 0)
-      return bytes;
-
-    // Operation failed.
-    if ((state & user_set_non_blocking)
-        || (ec != asio::error::would_block
-          && ec != asio::error::try_again))
-      return 0;
-
-    // Wait for socket to become ready.
-    if (socket_ops::poll_write(s, 0, -1, ec) < 0)
-      return 0;
-  }
-}
-
-#if defined(ASIO_HAS_IOCP)
-
-void complete_iocp_send(
-    const weak_cancel_token_type& cancel_token,
-    asio::error_code& ec)
-{
-  // Map non-portable errors to their portable counterparts.
-  if (ec.value() == ERROR_NETNAME_DELETED)
-  {
-    if (cancel_token.expired())
-      ec = asio::error::operation_aborted;
-    else
-      ec = asio::error::connection_reset;
-  }
-  else if (ec.value() == ERROR_PORT_UNREACHABLE)
-  {
-    ec = asio::error::connection_refused;
-  }
-}
-
-#else // defined(ASIO_HAS_IOCP)
-
-bool non_blocking_send(socket_type s,
-    const buf* bufs, size_t count, int flags,
-    asio::error_code& ec, size_t& bytes_transferred)
-{
-  for (;;)
-  {
-    // Write some data.
-    signed_size_type bytes = socket_ops::send(s, bufs, count, flags, ec);
-
-    // Retry operation if interrupted by signal.
-    if (ec == asio::error::interrupted)
-      continue;
-
-    // Check if we need to run the operation again.
-    if (ec == asio::error::would_block
-        || ec == asio::error::try_again)
-      return false;
-
-    // Operation is complete.
-    if (bytes >= 0)
-    {
-      ec = asio::error_code();
-      bytes_transferred = bytes;
-    }
-    else
-      bytes_transferred = 0;
-
-    return true;
-  }
-}
-
-#endif // defined(ASIO_HAS_IOCP)
-
-signed_size_type sendto(socket_type s, const buf* bufs, size_t count,
-    int flags, const socket_addr_type* addr, std::size_t addrlen,
-    asio::error_code& ec)
-{
-  clear_last_error();
-#if defined(ASIO_WINDOWS) || defined(__CYGWIN__)
-  // Send the data.
-  DWORD send_buf_count = static_cast<DWORD>(count);
-  DWORD bytes_transferred = 0;
-  int result = error_wrapper(::WSASendTo(s, const_cast<buf*>(bufs),
-        send_buf_count, &bytes_transferred, flags, addr,
-        static_cast<int>(addrlen), 0, 0), ec);
-  if (ec.value() == ERROR_NETNAME_DELETED)
-    ec = asio::error::connection_reset;
-  else if (ec.value() == ERROR_PORT_UNREACHABLE)
-    ec = asio::error::connection_refused;
-  if (result != 0)
-    return socket_error_retval;
-  ec = asio::error_code();
-  return bytes_transferred;
-#else // defined(ASIO_WINDOWS) || defined(__CYGWIN__)
-  msghdr msg = msghdr();
-  init_msghdr_msg_name(msg.msg_name, addr);
-  msg.msg_namelen = static_cast<int>(addrlen);
-  msg.msg_iov = const_cast<buf*>(bufs);
-  msg.msg_iovlen = static_cast<int>(count);
-#if defined(__linux__)
-  flags |= MSG_NOSIGNAL;
-#endif // defined(__linux__)
-  signed_size_type result = error_wrapper(::sendmsg(s, &msg, flags), ec);
-  if (result >= 0)
-    ec = asio::error_code();
-  return result;
-#endif // defined(ASIO_WINDOWS) || defined(__CYGWIN__)
-}
-
-size_t sync_sendto(socket_type s, state_type state, const buf* bufs,
-    size_t count, int flags, const socket_addr_type* addr,
-    std::size_t addrlen, asio::error_code& ec)
-{
-  if (s == invalid_socket)
-  {
-    ec = asio::error::bad_descriptor;
-    return 0;
-  }
-
-  // Write some data.
-  for (;;)
-  {
-    // Try to complete the operation without blocking.
-    signed_size_type bytes = socket_ops::sendto(
-        s, bufs, count, flags, addr, addrlen, ec);
-
-    // Check if operation succeeded.
-    if (bytes >= 0)
-      return bytes;
-
-    // Operation failed.
-    if ((state & user_set_non_blocking)
-        || (ec != asio::error::would_block
-          && ec != asio::error::try_again))
-      return 0;
-
-    // Wait for socket to become ready.
-    if (socket_ops::poll_write(s, 0, -1, ec) < 0)
-      return 0;
-  }
-}
-
-#if !defined(ASIO_HAS_IOCP)
-
-bool non_blocking_sendto(socket_type s,
-    const buf* bufs, size_t count, int flags,
-    const socket_addr_type* addr, std::size_t addrlen,
-    asio::error_code& ec, size_t& bytes_transferred)
-{
-  for (;;)
-  {
-    // Write some data.
-    signed_size_type bytes = socket_ops::sendto(
-        s, bufs, count, flags, addr, addrlen, ec);
-
-    // Retry operation if interrupted by signal.
-    if (ec == asio::error::interrupted)
-      continue;
-
-    // Check if we need to run the operation again.
-    if (ec == asio::error::would_block
-        || ec == asio::error::try_again)
-      return false;
-
-    // Operation is complete.
-    if (bytes >= 0)
-    {
-      ec = asio::error_code();
-      bytes_transferred = bytes;
-    }
-    else
-      bytes_transferred = 0;
-
-    return true;
-  }
-}
-
-#endif // !defined(ASIO_HAS_IOCP)
-
-socket_type socket(int af, int type, int protocol,
-    asio::error_code& ec)
-{
-  clear_last_error();
-#if defined(ASIO_WINDOWS) || defined(__CYGWIN__)
-  socket_type s = error_wrapper(::WSASocketW(af, type, protocol, 0, 0,
-        WSA_FLAG_OVERLAPPED), ec);
-  if (s == invalid_socket)
-    return s;
-
-  if (af == ASIO_OS_DEF(AF_INET6))
-  {
-    // Try to enable the POSIX default behaviour of having IPV6_V6ONLY set to
-    // false. This will only succeed on Windows Vista and later versions of
-    // Windows, where a dual-stack IPv4/v6 implementation is available.
-    DWORD optval = 0;
-    ::setsockopt(s, IPPROTO_IPV6, IPV6_V6ONLY,
-        reinterpret_cast<const char*>(&optval), sizeof(optval));
-  }
-
-  ec = asio::error_code();
-
-  return s;
-#elif defined(__MACH__) && defined(__APPLE__) || defined(__FreeBSD__)
-  socket_type s = error_wrapper(::socket(af, type, protocol), ec);
-  if (s == invalid_socket)
-    return s;
-
-  int optval = 1;
-  int result = error_wrapper(::setsockopt(s,
-        SOL_SOCKET, SO_NOSIGPIPE, &optval, sizeof(optval)), ec);
-  if (result != 0)
-  {
-    ::close(s);
-    return invalid_socket;
-  }
-
-  return s;
-#else
-  int s = error_wrapper(::socket(af, type, protocol), ec);
-  if (s >= 0)
-    ec = asio::error_code();
-  return s;
-#endif
-}
-
-template <typename SockLenType>
-inline int call_setsockopt(SockLenType msghdr::*,
-    socket_type s, int level, int optname,
-    const void* optval, std::size_t optlen)
-{
-  return ::setsockopt(s, level, optname,
-      (const char*)optval, (SockLenType)optlen);
-}
-
-int setsockopt(socket_type s, state_type& state, int level, int optname,
-    const void* optval, std::size_t optlen, asio::error_code& ec)
-{
-  if (s == invalid_socket)
-  {
-    ec = asio::error::bad_descriptor;
-    return socket_error_retval;
-  }
-
-  if (level == custom_socket_option_level && optname == always_fail_option)
-  {
-    ec = asio::error::invalid_argument;
-    return socket_error_retval;
-  }
-
-  if (level == custom_socket_option_level
-      && optname == enable_connection_aborted_option)
-  {
-    if (optlen != sizeof(int))
-    {
-      ec = asio::error::invalid_argument;
-      return socket_error_retval;
-    }
-
-    if (*static_cast<const int*>(optval))
-      state |= enable_connection_aborted;
-    else
-      state &= ~enable_connection_aborted;
-    ec = asio::error_code();
-    return 0;
-  }
-
-  if (level == SOL_SOCKET && optname == SO_LINGER)
-    state |= user_set_linger;
-
-#if defined(__BORLANDC__)
-  // Mysteriously, using the getsockopt and setsockopt functions directly with
-  // Borland C++ results in incorrect values being set and read. The bug can be
-  // worked around by using function addresses resolved with GetProcAddress.
-  if (HMODULE winsock_module = ::GetModuleHandleA("ws2_32"))
-  {
-    typedef int (WSAAPI *sso_t)(SOCKET, int, int, const char*, int);
-    if (sso_t sso = (sso_t)::GetProcAddress(winsock_module, "setsockopt"))
-    {
-      clear_last_error();
-      return error_wrapper(sso(s, level, optname,
-            reinterpret_cast<const char*>(optval),
-            static_cast<int>(optlen)), ec);
-    }
-  }
-  ec = asio::error::fault;
-  return socket_error_retval;
-#else // defined(__BORLANDC__)
-  clear_last_error();
-  int result = error_wrapper(call_setsockopt(&msghdr::msg_namelen,
-        s, level, optname, optval, optlen), ec);
-  if (result == 0)
-  {
-    ec = asio::error_code();
-
-#if defined(__MACH__) && defined(__APPLE__) \
-  || defined(__NetBSD__) || defined(__FreeBSD__) || defined(__OpenBSD__)
-    // To implement portable behaviour for SO_REUSEADDR with UDP sockets we
-    // need to also set SO_REUSEPORT on BSD-based platforms.
-    if ((state & datagram_oriented)
-        && level == SOL_SOCKET && optname == SO_REUSEADDR)
-    {
-      call_setsockopt(&msghdr::msg_namelen, s,
-          SOL_SOCKET, SO_REUSEPORT, optval, optlen);
-    }
-#endif
-  }
-
-  return result;
-#endif // defined(__BORLANDC__)
-}
-
-template <typename SockLenType>
-inline int call_getsockopt(SockLenType msghdr::*,
-    socket_type s, int level, int optname,
-    void* optval, std::size_t* optlen)
-{
-  SockLenType tmp_optlen = (SockLenType)*optlen;
-  int result = ::getsockopt(s, level, optname, (char*)optval, &tmp_optlen);
-  *optlen = (std::size_t)tmp_optlen;
-  return result;
-}
-
-int getsockopt(socket_type s, state_type state, int level, int optname,
-    void* optval, size_t* optlen, asio::error_code& ec)
-{
-  if (s == invalid_socket)
-  {
-    ec = asio::error::bad_descriptor;
-    return socket_error_retval;
-  }
-
-  if (level == custom_socket_option_level && optname == always_fail_option)
-  {
-    ec = asio::error::invalid_argument;
-    return socket_error_retval;
-  }
-
-  if (level == custom_socket_option_level
-      && optname == enable_connection_aborted_option)
-  {
-    if (*optlen != sizeof(int))
-    {
-      ec = asio::error::invalid_argument;
-      return socket_error_retval;
-    }
-
-    *static_cast<int*>(optval) = (state & enable_connection_aborted) ? 1 : 0;
-    ec = asio::error_code();
-    return 0;
-  }
-
-#if defined(__BORLANDC__)
-  // Mysteriously, using the getsockopt and setsockopt functions directly with
-  // Borland C++ results in incorrect values being set and read. The bug can be
-  // worked around by using function addresses resolved with GetProcAddress.
-  if (HMODULE winsock_module = ::GetModuleHandleA("ws2_32"))
-  {
-    typedef int (WSAAPI *gso_t)(SOCKET, int, int, char*, int*);
-    if (gso_t gso = (gso_t)::GetProcAddress(winsock_module, "getsockopt"))
-    {
-      clear_last_error();
-      int tmp_optlen = static_cast<int>(*optlen);
-      int result = error_wrapper(gso(s, level, optname,
-            reinterpret_cast<char*>(optval), &tmp_optlen), ec);
-      *optlen = static_cast<size_t>(tmp_optlen);
-      if (result != 0 && level == IPPROTO_IPV6 && optname == IPV6_V6ONLY
-          && ec.value() == WSAENOPROTOOPT && *optlen == sizeof(DWORD))
-      {
-        // Dual-stack IPv4/v6 sockets, and the IPV6_V6ONLY socket option, are
-        // only supported on Windows Vista and later. To simplify program logic
-        // we will fake success of getting this option and specify that the
-        // value is non-zero (i.e. true). This corresponds to the behavior of
-        // IPv6 sockets on Windows platforms pre-Vista.
-        *static_cast<DWORD*>(optval) = 1;
-        ec = asio::error_code();
-      }
-      return result;
-    }
-  }
-  ec = asio::error::fault;
-  return socket_error_retval;
-#elif defined(ASIO_WINDOWS) || defined(__CYGWIN__)
-  clear_last_error();
-  int result = error_wrapper(call_getsockopt(&msghdr::msg_namelen,
-        s, level, optname, optval, optlen), ec);
-  if (result != 0 && level == IPPROTO_IPV6 && optname == IPV6_V6ONLY
-      && ec.value() == WSAENOPROTOOPT && *optlen == sizeof(DWORD))
-  {
-    // Dual-stack IPv4/v6 sockets, and the IPV6_V6ONLY socket option, are only
-    // supported on Windows Vista and later. To simplify program logic we will
-    // fake success of getting this option and specify that the value is
-    // non-zero (i.e. true). This corresponds to the behavior of IPv6 sockets
-    // on Windows platforms pre-Vista.
-    *static_cast<DWORD*>(optval) = 1;
-    ec = asio::error_code();
-  }
-  if (result == 0)
-    ec = asio::error_code();
-  return result;
-#else // defined(ASIO_WINDOWS) || defined(__CYGWIN__)
-  clear_last_error();
-  int result = error_wrapper(call_getsockopt(&msghdr::msg_namelen,
-        s, level, optname, optval, optlen), ec);
-#if defined(__linux__)
-  if (result == 0 && level == SOL_SOCKET && *optlen == sizeof(int)
-      && (optname == SO_SNDBUF || optname == SO_RCVBUF))
-  {
-    // On Linux, setting SO_SNDBUF or SO_RCVBUF to N actually causes the kernel
-    // to set the buffer size to N*2. Linux puts additional stuff into the
-    // buffers so that only about half is actually available to the application.
-    // The retrieved value is divided by 2 here to make it appear as though the
-    // correct value has been set.
-    *static_cast<int*>(optval) /= 2;
-  }
-#endif // defined(__linux__)
-  if (result == 0)
-    ec = asio::error_code();
-  return result;
-#endif // defined(ASIO_WINDOWS) || defined(__CYGWIN__)
-}
-
-template <typename SockLenType>
-inline int call_getpeername(SockLenType msghdr::*,
-    socket_type s, socket_addr_type* addr, std::size_t* addrlen)
-{
-  SockLenType tmp_addrlen = (SockLenType)*addrlen;
-  int result = ::getpeername(s, addr, &tmp_addrlen);
-  *addrlen = (std::size_t)tmp_addrlen;
-  return result;
-}
-
-int getpeername(socket_type s, socket_addr_type* addr,
-    std::size_t* addrlen, bool cached, asio::error_code& ec)
-{
-  if (s == invalid_socket)
-  {
-    ec = asio::error::bad_descriptor;
-    return socket_error_retval;
-  }
-
-#if defined(ASIO_WINDOWS) && !defined(ASIO_WINDOWS_APP) \
-  || defined(__CYGWIN__)
-  if (cached)
-  {
-    // Check if socket is still connected.
-    DWORD connect_time = 0;
-    size_t connect_time_len = sizeof(connect_time);
-    if (socket_ops::getsockopt(s, 0, SOL_SOCKET, SO_CONNECT_TIME,
-          &connect_time, &connect_time_len, ec) == socket_error_retval)
-    {
-      return socket_error_retval;
-    }
-    if (connect_time == 0xFFFFFFFF)
-    {
-      ec = asio::error::not_connected;
-      return socket_error_retval;
-    }
-
-    // The cached value is still valid.
-    ec = asio::error_code();
-    return 0;
-  }
-#else // defined(ASIO_WINDOWS) && !defined(ASIO_WINDOWS_APP)
-      // || defined(__CYGWIN__)
-  (void)cached;
-#endif // defined(ASIO_WINDOWS) && !defined(ASIO_WINDOWS_APP)
-       // || defined(__CYGWIN__)
-
-  clear_last_error();
-  int result = error_wrapper(call_getpeername(
-        &msghdr::msg_namelen, s, addr, addrlen), ec);
-  if (result == 0)
-    ec = asio::error_code();
-  return result;
-}
-
-template <typename SockLenType>
-inline int call_getsockname(SockLenType msghdr::*,
-    socket_type s, socket_addr_type* addr, std::size_t* addrlen)
-{
-  SockLenType tmp_addrlen = (SockLenType)*addrlen;
-  int result = ::getsockname(s, addr, &tmp_addrlen);
-  *addrlen = (std::size_t)tmp_addrlen;
-  return result;
-}
-
-int getsockname(socket_type s, socket_addr_type* addr,
-    std::size_t* addrlen, asio::error_code& ec)
-{
-  if (s == invalid_socket)
-  {
-    ec = asio::error::bad_descriptor;
-    return socket_error_retval;
-  }
-
-  clear_last_error();
-  int result = error_wrapper(call_getsockname(
-        &msghdr::msg_namelen, s, addr, addrlen), ec);
-  if (result == 0)
-    ec = asio::error_code();
-  return result;
-}
-
-int ioctl(socket_type s, state_type& state, int cmd,
-    ioctl_arg_type* arg, asio::error_code& ec)
-{
-  if (s == invalid_socket)
-  {
-    ec = asio::error::bad_descriptor;
-    return socket_error_retval;
-  }
-
-  clear_last_error();
-#if defined(ASIO_WINDOWS) || defined(__CYGWIN__)
-  int result = error_wrapper(::ioctlsocket(s, cmd, arg), ec);
-#elif defined(__MACH__) && defined(__APPLE__) \
-  || defined(__NetBSD__) || defined(__FreeBSD__) || defined(__OpenBSD__)
-  int result = error_wrapper(::ioctl(s,
-        static_cast<unsigned int>(cmd), arg), ec);
-#else
-  int result = error_wrapper(::ioctl(s, cmd, arg), ec);
-#endif
-  if (result >= 0)
-  {
-    ec = asio::error_code();
-
-    // When updating the non-blocking mode we always perform the ioctl syscall,
-    // even if the flags would otherwise indicate that the socket is already in
-    // the correct state. This ensures that the underlying socket is put into
-    // the state that has been requested by the user. If the ioctl syscall was
-    // successful then we need to update the flags to match.
-    if (cmd == static_cast<int>(FIONBIO))
-    {
-      if (*arg)
-      {
-        state |= user_set_non_blocking;
-      }
-      else
-      {
-        // Clearing the non-blocking mode always overrides any internally-set
-        // non-blocking flag. Any subsequent asynchronous operations will need
-        // to re-enable non-blocking I/O.
-        state &= ~(user_set_non_blocking | internal_non_blocking);
-      }
-    }
-  }
-
-  return result;
-}
-
-int select(int nfds, fd_set* readfds, fd_set* writefds,
-    fd_set* exceptfds, timeval* timeout, asio::error_code& ec)
-{
-  clear_last_error();
-#if defined(ASIO_WINDOWS) || defined(__CYGWIN__)
-  if (!readfds && !writefds && !exceptfds && timeout)
-  {
-    DWORD milliseconds = timeout->tv_sec * 1000 + timeout->tv_usec / 1000;
-    if (milliseconds == 0)
-      milliseconds = 1; // Force context switch.
-    ::Sleep(milliseconds);
-    ec = asio::error_code();
-    return 0;
-  }
-
-  // The select() call allows timeout values measured in microseconds, but the
-  // system clock (as wrapped by boost::posix_time::microsec_clock) typically
-  // has a resolution of 10 milliseconds. This can lead to a spinning select
-  // reactor, meaning increased CPU usage, when waiting for the earliest
-  // scheduled timeout if it's less than 10 milliseconds away. To avoid a tight
-  // spin we'll use a minimum timeout of 1 millisecond.
-  if (timeout && timeout->tv_sec == 0
-      && timeout->tv_usec > 0 && timeout->tv_usec < 1000)
-    timeout->tv_usec = 1000;
-#endif // defined(ASIO_WINDOWS) || defined(__CYGWIN__)
-
-#if defined(__hpux) && defined(__SELECT)
-  timespec ts;
-  ts.tv_sec = timeout ? timeout->tv_sec : 0;
-  ts.tv_nsec = timeout ? timeout->tv_usec * 1000 : 0;
-  return error_wrapper(::pselect(nfds, readfds,
-        writefds, exceptfds, timeout ? &ts : 0, 0), ec);
-#else
-  int result = error_wrapper(::select(nfds, readfds,
-        writefds, exceptfds, timeout), ec);
-  if (result >= 0)
-    ec = asio::error_code();
-  return result;
-#endif
-}
-
-int poll_read(socket_type s, state_type state,
-    int msec, asio::error_code& ec)
-{
-  if (s == invalid_socket)
-  {
-    ec = asio::error::bad_descriptor;
-    return socket_error_retval;
-  }
-
-#if defined(ASIO_WINDOWS) \
-  || defined(__CYGWIN__) \
-  || defined(__SYMBIAN32__)
-  fd_set fds;
-  FD_ZERO(&fds);
-  FD_SET(s, &fds);
-  timeval timeout_obj;
-  timeval* timeout;
-  if (state & user_set_non_blocking)
-  {
-    timeout_obj.tv_sec = 0;
-    timeout_obj.tv_usec = 0;
-    timeout = &timeout_obj;
-  }
-  else if (msec >= 0)
-  {
-    timeout_obj.tv_sec = msec / 1000;
-    timeout_obj.tv_usec = (msec % 1000) * 1000;
-    timeout = &timeout_obj;
-  }
-  else
-    timeout = 0;
-  clear_last_error();
-  int result = error_wrapper(::select(s + 1, &fds, 0, 0, timeout), ec);
-#else // defined(ASIO_WINDOWS)
-      // || defined(__CYGWIN__)
-      // || defined(__SYMBIAN32__)
-  pollfd fds;
-  fds.fd = s;
-  fds.events = POLLIN;
-  fds.revents = 0;
-  int timeout = (state & user_set_non_blocking) ? 0 : msec;
-  clear_last_error();
-  int result = error_wrapper(::poll(&fds, 1, timeout), ec);
-#endif // defined(ASIO_WINDOWS)
-       // || defined(__CYGWIN__)
-       // || defined(__SYMBIAN32__)
-  if (result == 0)
-    ec = (state & user_set_non_blocking)
-      ? asio::error::would_block : asio::error_code();
-  else if (result > 0)
-    ec = asio::error_code();
-  return result;
-}
-
-int poll_write(socket_type s, state_type state,
-    int msec, asio::error_code& ec)
-{
-  if (s == invalid_socket)
-  {
-    ec = asio::error::bad_descriptor;
-    return socket_error_retval;
-  }
-
-#if defined(ASIO_WINDOWS) \
-  || defined(__CYGWIN__) \
-  || defined(__SYMBIAN32__)
-  fd_set fds;
-  FD_ZERO(&fds);
-  FD_SET(s, &fds);
-  timeval timeout_obj;
-  timeval* timeout;
-  if (state & user_set_non_blocking)
-  {
-    timeout_obj.tv_sec = 0;
-    timeout_obj.tv_usec = 0;
-    timeout = &timeout_obj;
-  }
-  else if (msec >= 0)
-  {
-    timeout_obj.tv_sec = msec / 1000;
-    timeout_obj.tv_usec = (msec % 1000) * 1000;
-    timeout = &timeout_obj;
-  }
-  else
-    timeout = 0;
-  clear_last_error();
-  int result = error_wrapper(::select(s + 1, 0, &fds, 0, timeout), ec);
-#else // defined(ASIO_WINDOWS)
-      // || defined(__CYGWIN__)
-      // || defined(__SYMBIAN32__)
-  pollfd fds;
-  fds.fd = s;
-  fds.events = POLLOUT;
-  fds.revents = 0;
-  int timeout = (state & user_set_non_blocking) ? 0 : msec;
-  clear_last_error();
-  int result = error_wrapper(::poll(&fds, 1, timeout), ec);
-#endif // defined(ASIO_WINDOWS)
-       // || defined(__CYGWIN__)
-       // || defined(__SYMBIAN32__)
-  if (result == 0)
-    ec = (state & user_set_non_blocking)
-      ? asio::error::would_block : asio::error_code();
-  else if (result > 0)
-    ec = asio::error_code();
-  return result;
-}
-
-int poll_error(socket_type s, state_type state,
-    int msec, asio::error_code& ec)
-{
-  if (s == invalid_socket)
-  {
-    ec = asio::error::bad_descriptor;
-    return socket_error_retval;
-  }
-
-#if defined(ASIO_WINDOWS) \
-  || defined(__CYGWIN__) \
-  || defined(__SYMBIAN32__)
-  fd_set fds;
-  FD_ZERO(&fds);
-  FD_SET(s, &fds);
-  timeval timeout_obj;
-  timeval* timeout;
-  if (state & user_set_non_blocking)
-  {
-    timeout_obj.tv_sec = 0;
-    timeout_obj.tv_usec = 0;
-    timeout = &timeout_obj;
-  }
-  else if (msec >= 0)
-  {
-    timeout_obj.tv_sec = msec / 1000;
-    timeout_obj.tv_usec = (msec % 1000) * 1000;
-    timeout = &timeout_obj;
-  }
-  else
-    timeout = 0;
-  clear_last_error();
-  int result = error_wrapper(::select(s + 1, 0, 0, &fds, timeout), ec);
-#else // defined(ASIO_WINDOWS)
-      // || defined(__CYGWIN__)
-      // || defined(__SYMBIAN32__)
-  pollfd fds;
-  fds.fd = s;
-  fds.events = POLLPRI | POLLERR | POLLHUP;
-  fds.revents = 0;
-  int timeout = (state & user_set_non_blocking) ? 0 : msec;
-  clear_last_error();
-  int result = error_wrapper(::poll(&fds, 1, timeout), ec);
-#endif // defined(ASIO_WINDOWS)
-       // || defined(__CYGWIN__)
-       // || defined(__SYMBIAN32__)
-  if (result == 0)
-    ec = (state & user_set_non_blocking)
-      ? asio::error::would_block : asio::error_code();
-  else if (result > 0)
-    ec = asio::error_code();
-  return result;
-}
-
-int poll_connect(socket_type s, int msec, asio::error_code& ec)
-{
-  if (s == invalid_socket)
-  {
-    ec = asio::error::bad_descriptor;
-    return socket_error_retval;
-  }
-
-#if defined(ASIO_WINDOWS) \
-  || defined(__CYGWIN__) \
-  || defined(__SYMBIAN32__)
-  fd_set write_fds;
-  FD_ZERO(&write_fds);
-  FD_SET(s, &write_fds);
-  fd_set except_fds;
-  FD_ZERO(&except_fds);
-  FD_SET(s, &except_fds);
-  timeval timeout_obj;
-  timeval* timeout;
-  if (msec >= 0)
-  {
-    timeout_obj.tv_sec = msec / 1000;
-    timeout_obj.tv_usec = (msec % 1000) * 1000;
-    timeout = &timeout_obj;
-  }
-  else
-    timeout = 0;
-  clear_last_error();
-  int result = error_wrapper(::select(
-        s + 1, 0, &write_fds, &except_fds, timeout), ec);
-  if (result >= 0)
-    ec = asio::error_code();
-  return result;
-#else // defined(ASIO_WINDOWS)
-      // || defined(__CYGWIN__)
-      // || defined(__SYMBIAN32__)
-  pollfd fds;
-  fds.fd = s;
-  fds.events = POLLOUT;
-  fds.revents = 0;
-  clear_last_error();
-  int result = error_wrapper(::poll(&fds, 1, msec), ec);
-  if (result >= 0)
-    ec = asio::error_code();
-  return result;
-#endif // defined(ASIO_WINDOWS)
-       // || defined(__CYGWIN__)
-       // || defined(__SYMBIAN32__)
-}
-
-#endif // !defined(ASIO_WINDOWS_RUNTIME)
-
-const char* inet_ntop(int af, const void* src, char* dest, size_t length,
-    unsigned long scope_id, asio::error_code& ec)
-{
-  clear_last_error();
-#if defined(ASIO_WINDOWS_RUNTIME)
-  using namespace std; // For sprintf.
-  const unsigned char* bytes = static_cast<const unsigned char*>(src);
-  if (af == ASIO_OS_DEF(AF_INET))
-  {
-    sprintf_s(dest, length, "%u.%u.%u.%u",
-        bytes[0], bytes[1], bytes[2], bytes[3]);
-    return dest;
-  }
-  else if (af == ASIO_OS_DEF(AF_INET6))
-  {
-    size_t n = 0, b = 0, z = 0;
-    while (n < length && b < 16)
-    {
-      if (bytes[b] == 0 && bytes[b + 1] == 0 && z == 0)
-      {
-        do b += 2; while (b < 16 && bytes[b] == 0 && bytes[b + 1] == 0);
-        n += sprintf_s(dest + n, length - n, ":%s", b < 16 ? "" : ":"), ++z;
-      }
-      else
-      {
-        n += sprintf_s(dest + n, length - n, "%s%x", b ? ":" : "",
-            (static_cast<u_long_type>(bytes[b]) << 8) | bytes[b + 1]);
-        b += 2;
-      }
-    }
-    if (scope_id)
-      n += sprintf_s(dest + n, length - n, "%%%lu", scope_id);
-    return dest;
-  }
-  else
-  {
-    ec = asio::error::address_family_not_supported;
-    return 0;
-  }
-#elif defined(ASIO_WINDOWS) || defined(__CYGWIN__)
-  using namespace std; // For memcpy.
-
-  if (af != ASIO_OS_DEF(AF_INET) && af != ASIO_OS_DEF(AF_INET6))
-  {
-    ec = asio::error::address_family_not_supported;
-    return 0;
-  }
-
-  union
-  {
-    socket_addr_type base;
-    sockaddr_storage_type storage;
-    sockaddr_in4_type v4;
-    sockaddr_in6_type v6;
-  } address;
-  DWORD address_length;
-  if (af == ASIO_OS_DEF(AF_INET))
-  {
-    address_length = sizeof(sockaddr_in4_type);
-    address.v4.sin_family = ASIO_OS_DEF(AF_INET);
-    address.v4.sin_port = 0;
-    memcpy(&address.v4.sin_addr, src, sizeof(in4_addr_type));
-  }
-  else // AF_INET6
-  {
-    address_length = sizeof(sockaddr_in6_type);
-    address.v6.sin6_family = ASIO_OS_DEF(AF_INET6);
-    address.v6.sin6_port = 0;
-    address.v6.sin6_flowinfo = 0;
-    address.v6.sin6_scope_id = scope_id;
-    memcpy(&address.v6.sin6_addr, src, sizeof(in6_addr_type));
-  }
-
-  DWORD string_length = static_cast<DWORD>(length);
-#if defined(BOOST_NO_ANSI_APIS) || (defined(_MSC_VER) && (_MSC_VER >= 1800))
-  LPWSTR string_buffer = (LPWSTR)_alloca(length * sizeof(WCHAR));
-  int result = error_wrapper(::WSAAddressToStringW(&address.base,
-        address_length, 0, string_buffer, &string_length), ec);
-  ::WideCharToMultiByte(CP_ACP, 0, string_buffer, -1,
-      dest, static_cast<int>(length), 0, 0);
-#else
-  int result = error_wrapper(::WSAAddressToStringA(
-        &address.base, address_length, 0, dest, &string_length), ec);
-#endif
-
-  // Windows may set error code on success.
-  if (result != socket_error_retval)
-    ec = asio::error_code();
-
-  // Windows may not set an error code on failure.
-  else if (result == socket_error_retval && !ec)
-    ec = asio::error::invalid_argument;
-
-  return result == socket_error_retval ? 0 : dest;
-#else // defined(ASIO_WINDOWS) || defined(__CYGWIN__)
-  const char* result = error_wrapper(::inet_ntop(
-        af, src, dest, static_cast<int>(length)), ec);
-  if (result == 0 && !ec)
-    ec = asio::error::invalid_argument;
-  if (result != 0 && af == ASIO_OS_DEF(AF_INET6) && scope_id != 0)
-  {
-    using namespace std; // For strcat and sprintf.
-    char if_name[IF_NAMESIZE + 1] = "%";
-    const in6_addr_type* ipv6_address = static_cast<const in6_addr_type*>(src);
-    bool is_link_local = ((ipv6_address->s6_addr[0] == 0xfe)
-        && ((ipv6_address->s6_addr[1] & 0xc0) == 0x80));
-    bool is_multicast_link_local = ((ipv6_address->s6_addr[0] == 0xff)
-        && ((ipv6_address->s6_addr[1] & 0x0f) == 0x02));
-    if ((!is_link_local && !is_multicast_link_local)
-        || if_indextoname(static_cast<unsigned>(scope_id), if_name + 1) == 0)
-      sprintf(if_name + 1, "%lu", scope_id);
-    strcat(dest, if_name);
-  }
-  return result;
-#endif // defined(ASIO_WINDOWS) || defined(__CYGWIN__)
-}
-
-int inet_pton(int af, const char* src, void* dest,
-    unsigned long* scope_id, asio::error_code& ec)
-{
-  clear_last_error();
-#if defined(ASIO_WINDOWS_RUNTIME)
-  using namespace std; // For sscanf.
-  unsigned char* bytes = static_cast<unsigned char*>(dest);
-  if (af == ASIO_OS_DEF(AF_INET))
-  {
-    unsigned int b0, b1, b2, b3;
-    if (sscanf_s(src, "%u.%u.%u.%u", &b0, &b1, &b2, &b3) != 4)
-    {
-      ec = asio::error::invalid_argument;
-      return -1;
-    }
-    if (b0 > 255 || b1 > 255 || b2 > 255 || b3 > 255)
-    {
-      ec = asio::error::invalid_argument;
-      return -1;
-    }
-    bytes[0] = static_cast<unsigned char>(b0);
-    bytes[1] = static_cast<unsigned char>(b1);
-    bytes[2] = static_cast<unsigned char>(b2);
-    bytes[3] = static_cast<unsigned char>(b3);
-    ec = asio::error_code();
-    return 1;
-  }
-  else if (af == ASIO_OS_DEF(AF_INET6))
-  {
-    unsigned char* bytes = static_cast<unsigned char*>(dest);
-    std::memset(bytes, 0, 16);
-    unsigned char back_bytes[16] = { 0 };
-    int num_front_bytes = 0, num_back_bytes = 0;
-    const char* p = src;
-
-    enum { fword, fcolon, bword, scope, done } state = fword;
-    unsigned long current_word = 0;
-    while (state != done)
-    {
-      if (current_word > 0xFFFF)
-      {
-        ec = asio::error::invalid_argument;
-        return -1;
-      }
-
-      switch (state)
-      {
-      case fword:
-        if (*p >= '0' && *p <= '9')
-          current_word = current_word * 16 + *p++ - '0';
-        else if (*p >= 'a' && *p <= 'f')
-          current_word = current_word * 16 + *p++ - 'a' + 10;
-        else if (*p >= 'A' && *p <= 'F')
-          current_word = current_word * 16 + *p++ - 'A' + 10;
-        else
-        {
-          if (num_front_bytes == 16)
-          {
-            ec = asio::error::invalid_argument;
-            return -1;
-          }
-
-          bytes[num_front_bytes++] = (current_word >> 8) & 0xFF;
-          bytes[num_front_bytes++] = current_word & 0xFF;
-          current_word = 0;
-
-          if (*p == ':')
-            state = fcolon, ++p;
-          else if (*p == '%')
-            state = scope, ++p;
-          else if (*p == 0)
-            state = done;
-          else
-          {
-            ec = asio::error::invalid_argument;
-            return -1;
-          }
-        }
-        break;
-
-      case fcolon:
-        if (*p == ':')
-          state = bword, ++p;
-        else
-          state = fword;
-        break;
-
-      case bword:
-        if (*p >= '0' && *p <= '9')
-          current_word = current_word * 16 + *p++ - '0';
-        else if (*p >= 'a' && *p <= 'f')
-          current_word = current_word * 16 + *p++ - 'a' + 10;
-        else if (*p >= 'A' && *p <= 'F')
-          current_word = current_word * 16 + *p++ - 'A' + 10;
-        else
-        {
-          if (num_front_bytes + num_back_bytes == 16)
-          {
-            ec = asio::error::invalid_argument;
-            return -1;
-          }
-
-          back_bytes[num_back_bytes++] = (current_word >> 8) & 0xFF;
-          back_bytes[num_back_bytes++] = current_word & 0xFF;
-          current_word = 0;
-
-          if (*p == ':')
-            state = bword, ++p;
-          else if (*p == '%')
-            state = scope, ++p;
-          else if (*p == 0)
-            state = done;
-          else
-          {
-            ec = asio::error::invalid_argument;
-            return -1;
-          }
-        }
-        break;
-
-      case scope:
-        if (*p >= '0' && *p <= '9')
-          current_word = current_word * 10 + *p++ - '0';
-        else if (*p == 0)
-          *scope_id = current_word, state = done;
-        else
-        {
-          ec = asio::error::invalid_argument;
-          return -1;
-        }
-        break;
-
-      default:
-        break;
-      }
-    }
-
-    for (int i = 0; i < num_back_bytes; ++i)
-      bytes[16 - num_back_bytes + i] = back_bytes[i];
-
-    ec = asio::error_code();
-    return 1;
-  }
-  else
-  {
-    ec = asio::error::address_family_not_supported;
-    return -1;
-  }
-#elif defined(ASIO_WINDOWS) || defined(__CYGWIN__)
-  using namespace std; // For memcpy and strcmp.
-
-  if (af != ASIO_OS_DEF(AF_INET) && af != ASIO_OS_DEF(AF_INET6))
-  {
-    ec = asio::error::address_family_not_supported;
-    return -1;
-  }
-
-  union
-  {
-    socket_addr_type base;
-    sockaddr_storage_type storage;
-    sockaddr_in4_type v4;
-    sockaddr_in6_type v6;
-  } address;
-  int address_length = sizeof(sockaddr_storage_type);
-#if defined(BOOST_NO_ANSI_APIS) || (defined(_MSC_VER) && (_MSC_VER >= 1800))
-  int num_wide_chars = static_cast<int>(strlen(src)) + 1;
-  LPWSTR wide_buffer = (LPWSTR)_alloca(num_wide_chars * sizeof(WCHAR));
-  ::MultiByteToWideChar(CP_ACP, 0, src, -1, wide_buffer, num_wide_chars);
-  int result = error_wrapper(::WSAStringToAddressW(
-        wide_buffer, af, 0, &address.base, &address_length), ec);
-#else
-  int result = error_wrapper(::WSAStringToAddressA(
-        const_cast<char*>(src), af, 0, &address.base, &address_length), ec);
-#endif
-
-  if (af == ASIO_OS_DEF(AF_INET))
-  {
-    if (result != socket_error_retval)
-    {
-      memcpy(dest, &address.v4.sin_addr, sizeof(in4_addr_type));
-      ec = asio::error_code();
-    }
-    else if (strcmp(src, "255.255.255.255") == 0)
-    {
-      static_cast<in4_addr_type*>(dest)->s_addr = INADDR_NONE;
-      ec = asio::error_code();
-    }
-  }
-  else // AF_INET6
-  {
-    if (result != socket_error_retval)
-    {
-      memcpy(dest, &address.v6.sin6_addr, sizeof(in6_addr_type));
-      if (scope_id)
-        *scope_id = address.v6.sin6_scope_id;
-      ec = asio::error_code();
-    }
-  }
-
-  // Windows may not set an error code on failure.
-  if (result == socket_error_retval && !ec)
-    ec = asio::error::invalid_argument;
-
-  if (result != socket_error_retval)
-    ec = asio::error_code();
-
-  return result == socket_error_retval ? -1 : 1;
-#else // defined(ASIO_WINDOWS) || defined(__CYGWIN__)
-  using namespace std; // For strchr, memcpy and atoi.
-
-  // On some platforms, inet_pton fails if an address string contains a scope
-  // id. Detect and remove the scope id before passing the string to inet_pton.
-  const bool is_v6 = (af == ASIO_OS_DEF(AF_INET6));
-  const char* if_name = is_v6 ? strchr(src, '%') : 0;
-  char src_buf[max_addr_v6_str_len + 1];
-  const char* src_ptr = src;
-  if (if_name != 0)
-  {
-    if (if_name - src > max_addr_v6_str_len)
-    {
-      ec = asio::error::invalid_argument;
-      return 0;
-    }
-    memcpy(src_buf, src, if_name - src);
-    src_buf[if_name - src] = 0;
-    src_ptr = src_buf;
-  }
-
-  int result = error_wrapper(::inet_pton(af, src_ptr, dest), ec);
-  if (result <= 0 && !ec)
-    ec = asio::error::invalid_argument;
-  if (result > 0 && is_v6 && scope_id)
-  {
-    using namespace std; // For strchr and atoi.
-    *scope_id = 0;
-    if (if_name != 0)
-    {
-      in6_addr_type* ipv6_address = static_cast<in6_addr_type*>(dest);
-      bool is_link_local = ((ipv6_address->s6_addr[0] == 0xfe)
-          && ((ipv6_address->s6_addr[1] & 0xc0) == 0x80));
-      bool is_multicast_link_local = ((ipv6_address->s6_addr[0] == 0xff)
-          && ((ipv6_address->s6_addr[1] & 0x0f) == 0x02));
-      if (is_link_local || is_multicast_link_local)
-        *scope_id = if_nametoindex(if_name + 1);
-      if (*scope_id == 0)
-        *scope_id = atoi(if_name + 1);
-    }
-  }
-  return result;
-#endif // defined(ASIO_WINDOWS) || defined(__CYGWIN__)
-}
-
-int gethostname(char* name, int namelen, asio::error_code& ec)
-{
-  clear_last_error();
-#if defined(ASIO_WINDOWS_RUNTIME)
-  try
-  {
-    using namespace Windows::Foundation::Collections;
-    using namespace Windows::Networking;
-    using namespace Windows::Networking::Connectivity;
-    IVectorView<HostName^>^ hostnames = NetworkInformation::GetHostNames();
-    for (unsigned i = 0; i < hostnames->Size; ++i)
-    {
-      HostName^ hostname = hostnames->GetAt(i);
-      if (hostname->Type == HostNameType::DomainName)
-      {
-        std::wstring_convert<std::codecvt_utf8<wchar_t>> converter;
-        std::string raw_name = converter.to_bytes(hostname->RawName->Data());
-        if (namelen > 0 && raw_name.size() < static_cast<std::size_t>(namelen))
-        {
-          strcpy_s(name, namelen, raw_name.c_str());
-          return 0;
-        }
-      }
-    }
-    return -1;
-  }
-  catch (Platform::Exception^ e)
-  {
-    ec = asio::error_code(e->HResult,
-        asio::system_category());
-    return -1;
-  }
-#else // defined(ASIO_WINDOWS_RUNTIME)
-  int result = error_wrapper(::gethostname(name, namelen), ec);
-# if defined(ASIO_WINDOWS)
-  if (result == 0)
-    ec = asio::error_code();
-# endif // defined(ASIO_WINDOWS)
-  return result;
-#endif // defined(ASIO_WINDOWS_RUNTIME)
-}
-
-#if !defined(ASIO_WINDOWS_RUNTIME)
-
-#if !defined(ASIO_HAS_GETADDRINFO)
-
-// The following functions are only needed for emulation of getaddrinfo and
-// getnameinfo.
-
-inline asio::error_code translate_netdb_error(int error)
-{
-  switch (error)
-  {
-  case 0:
-    return asio::error_code();
-  case HOST_NOT_FOUND:
-    return asio::error::host_not_found;
-  case TRY_AGAIN:
-    return asio::error::host_not_found_try_again;
-  case NO_RECOVERY:
-    return asio::error::no_recovery;
-  case NO_DATA:
-    return asio::error::no_data;
-  default:
-    ASIO_ASSERT(false);
-    return asio::error::invalid_argument;
-  }
-}
-
-inline hostent* gethostbyaddr(const char* addr, int length, int af,
-    hostent* result, char* buffer, int buflength, asio::error_code& ec)
-{
-  clear_last_error();
-#if defined(ASIO_WINDOWS) || defined(__CYGWIN__)
-  (void)(buffer);
-  (void)(buflength);
-  hostent* retval = error_wrapper(::gethostbyaddr(addr, length, af), ec);
-  if (!retval)
-    return 0;
-  ec = asio::error_code();
-  *result = *retval;
-  return retval;
-#elif defined(__sun) || defined(__QNX__)
-  int error = 0;
-  hostent* retval = error_wrapper(::gethostbyaddr_r(addr, length, af, result,
-        buffer, buflength, &error), ec);
-  if (error)
-    ec = translate_netdb_error(error);
-  return retval;
-#elif defined(__MACH__) && defined(__APPLE__)
-  (void)(buffer);
-  (void)(buflength);
-  int error = 0;
-  hostent* retval = error_wrapper(::getipnodebyaddr(
-        addr, length, af, &error), ec);
-  if (error)
-    ec = translate_netdb_error(error);
-  if (!retval)
-    return 0;
-  *result = *retval;
-  return retval;
-#else
-  hostent* retval = 0;
-  int error = 0;
-  error_wrapper(::gethostbyaddr_r(addr, length, af, result, buffer,
-        buflength, &retval, &error), ec);
-  if (error)
-    ec = translate_netdb_error(error);
-  return retval;
-#endif
-}
-
-inline hostent* gethostbyname(const char* name, int af, struct hostent* result,
-    char* buffer, int buflength, int ai_flags, asio::error_code& ec)
-{
-  clear_last_error();
-#if defined(ASIO_WINDOWS) || defined(__CYGWIN__)
-  (void)(buffer);
-  (void)(buflength);
-  (void)(ai_flags);
-  if (af != ASIO_OS_DEF(AF_INET))
-  {
-    ec = asio::error::address_family_not_supported;
-    return 0;
-  }
-  hostent* retval = error_wrapper(::gethostbyname(name), ec);
-  if (!retval)
-    return 0;
-  ec = asio::error_code();
-  *result = *retval;
-  return result;
-#elif defined(__sun) || defined(__QNX__)
-  (void)(ai_flags);
-  if (af != ASIO_OS_DEF(AF_INET))
-  {
-    ec = asio::error::address_family_not_supported;
-    return 0;
-  }
-  int error = 0;
-  hostent* retval = error_wrapper(::gethostbyname_r(name, result, buffer,
-        buflength, &error), ec);
-  if (error)
-    ec = translate_netdb_error(error);
-  return retval;
-#elif defined(__MACH__) && defined(__APPLE__)
-  (void)(buffer);
-  (void)(buflength);
-  int error = 0;
-  hostent* retval = error_wrapper(::getipnodebyname(
-        name, af, ai_flags, &error), ec);
-  if (error)
-    ec = translate_netdb_error(error);
-  if (!retval)
-    return 0;
-  *result = *retval;
-  return retval;
-#else
-  (void)(ai_flags);
-  if (af != ASIO_OS_DEF(AF_INET))
-  {
-    ec = asio::error::address_family_not_supported;
-    return 0;
-  }
-  hostent* retval = 0;
-  int error = 0;
-  error_wrapper(::gethostbyname_r(name, result,
-        buffer, buflength, &retval, &error), ec);
-  if (error)
-    ec = translate_netdb_error(error);
-  return retval;
-#endif
-}
-
-inline void freehostent(hostent* h)
-{
-#if defined(__MACH__) && defined(__APPLE__)
-  if (h)
-    ::freehostent(h);
-#else
-  (void)(h);
-#endif
-}
-
-// Emulation of getaddrinfo based on implementation in:
-// Stevens, W. R., UNIX Network Programming Vol. 1, 2nd Ed., Prentice-Hall 1998.
-
-struct gai_search
-{
-  const char* host;
-  int family;
-};
-
-inline int gai_nsearch(const char* host,
-    const addrinfo_type* hints, gai_search (&search)[2])
-{
-  int search_count = 0;
-  if (host == 0 || host[0] == '\0')
-  {
-    if (hints->ai_flags & AI_PASSIVE)
-    {
-      // No host and AI_PASSIVE implies wildcard bind.
-      switch (hints->ai_family)
-      {
-      case ASIO_OS_DEF(AF_INET):
-        search[search_count].host = "0.0.0.0";
-        search[search_count].family = ASIO_OS_DEF(AF_INET);
-        ++search_count;
-        break;
-      case ASIO_OS_DEF(AF_INET6):
-        search[search_count].host = "0::0";
-        search[search_count].family = ASIO_OS_DEF(AF_INET6);
-        ++search_count;
-        break;
-      case ASIO_OS_DEF(AF_UNSPEC):
-        search[search_count].host = "0::0";
-        search[search_count].family = ASIO_OS_DEF(AF_INET6);
-        ++search_count;
-        search[search_count].host = "0.0.0.0";
-        search[search_count].family = ASIO_OS_DEF(AF_INET);
-        ++search_count;
-        break;
-      default:
-        break;
-      }
-    }
-    else
-    {
-      // No host and not AI_PASSIVE means connect to local host.
-      switch (hints->ai_family)
-      {
-      case ASIO_OS_DEF(AF_INET):
-        search[search_count].host = "localhost";
-        search[search_count].family = ASIO_OS_DEF(AF_INET);
-        ++search_count;
-        break;
-      case ASIO_OS_DEF(AF_INET6):
-        search[search_count].host = "localhost";
-        search[search_count].family = ASIO_OS_DEF(AF_INET6);
-        ++search_count;
-        break;
-      case ASIO_OS_DEF(AF_UNSPEC):
-        search[search_count].host = "localhost";
-        search[search_count].family = ASIO_OS_DEF(AF_INET6);
-        ++search_count;
-        search[search_count].host = "localhost";
-        search[search_count].family = ASIO_OS_DEF(AF_INET);
-        ++search_count;
-        break;
-      default:
-        break;
-      }
-    }
-  }
-  else
-  {
-    // Host is specified.
-    switch (hints->ai_family)
-    {
-    case ASIO_OS_DEF(AF_INET):
-      search[search_count].host = host;
-      search[search_count].family = ASIO_OS_DEF(AF_INET);
-      ++search_count;
-      break;
-    case ASIO_OS_DEF(AF_INET6):
-      search[search_count].host = host;
-      search[search_count].family = ASIO_OS_DEF(AF_INET6);
-      ++search_count;
-      break;
-    case ASIO_OS_DEF(AF_UNSPEC):
-      search[search_count].host = host;
-      search[search_count].family = ASIO_OS_DEF(AF_INET6);
-      ++search_count;
-      search[search_count].host = host;
-      search[search_count].family = ASIO_OS_DEF(AF_INET);
-      ++search_count;
-      break;
-    default:
-      break;
-    }
-  }
-  return search_count;
-}
-
-template <typename T>
-inline T* gai_alloc(std::size_t size = sizeof(T))
-{
-  using namespace std;
-  T* p = static_cast<T*>(::operator new(size, std::nothrow));
-  if (p)
-    memset(p, 0, size);
-  return p;
-}
-
-inline void gai_free(void* p)
-{
-  ::operator delete(p);
-}
-
-inline void gai_strcpy(char* target, const char* source, std::size_t max_size)
-{
-  using namespace std;
-#if defined(ASIO_HAS_SECURE_RTL)
-  strcpy_s(target, max_size, source);
-#else // defined(ASIO_HAS_SECURE_RTL)
-  *target = 0;
-  if (max_size > 0)
-    strncat(target, source, max_size - 1);
-#endif // defined(ASIO_HAS_SECURE_RTL)
-}
-
-enum { gai_clone_flag = 1 << 30 };
-
-inline int gai_aistruct(addrinfo_type*** next, const addrinfo_type* hints,
-    const void* addr, int family)
-{
-  using namespace std;
-
-  addrinfo_type* ai = gai_alloc<addrinfo_type>();
-  if (ai == 0)
-    return EAI_MEMORY;
-
-  ai->ai_next = 0;
-  **next = ai;
-  *next = &ai->ai_next;
-
-  ai->ai_canonname = 0;
-  ai->ai_socktype = hints->ai_socktype;
-  if (ai->ai_socktype == 0)
-    ai->ai_flags |= gai_clone_flag;
-  ai->ai_protocol = hints->ai_protocol;
-  ai->ai_family = family;
-
-  switch (ai->ai_family)
-  {
-  case ASIO_OS_DEF(AF_INET):
-    {
-      sockaddr_in4_type* sinptr = gai_alloc<sockaddr_in4_type>();
-      if (sinptr == 0)
-        return EAI_MEMORY;
-      sinptr->sin_family = ASIO_OS_DEF(AF_INET);
-      memcpy(&sinptr->sin_addr, addr, sizeof(in4_addr_type));
-      ai->ai_addr = reinterpret_cast<sockaddr*>(sinptr);
-      ai->ai_addrlen = sizeof(sockaddr_in4_type);
-      break;
-    }
-  case ASIO_OS_DEF(AF_INET6):
-    {
-      sockaddr_in6_type* sin6ptr = gai_alloc<sockaddr_in6_type>();
-      if (sin6ptr == 0)
-        return EAI_MEMORY;
-      sin6ptr->sin6_family = ASIO_OS_DEF(AF_INET6);
-      memcpy(&sin6ptr->sin6_addr, addr, sizeof(in6_addr_type));
-      ai->ai_addr = reinterpret_cast<sockaddr*>(sin6ptr);
-      ai->ai_addrlen = sizeof(sockaddr_in6_type);
-      break;
-    }
-  default:
-    break;
-  }
-
-  return 0;
-}
-
-inline addrinfo_type* gai_clone(addrinfo_type* ai)
-{
-  using namespace std;
-
-  addrinfo_type* new_ai = gai_alloc<addrinfo_type>();
-  if (new_ai == 0)
-    return new_ai;
-
-  new_ai->ai_next = ai->ai_next;
-  ai->ai_next = new_ai;
-
-  new_ai->ai_flags = 0;
-  new_ai->ai_family = ai->ai_family;
-  new_ai->ai_socktype = ai->ai_socktype;
-  new_ai->ai_protocol = ai->ai_protocol;
-  new_ai->ai_canonname = 0;
-  new_ai->ai_addrlen = ai->ai_addrlen;
-  new_ai->ai_addr = gai_alloc<sockaddr>(ai->ai_addrlen);
-  memcpy(new_ai->ai_addr, ai->ai_addr, ai->ai_addrlen);
-
-  return new_ai;
-}
-
-inline int gai_port(addrinfo_type* aihead, int port, int socktype)
-{
-  int num_found = 0;
-
-  for (addrinfo_type* ai = aihead; ai; ai = ai->ai_next)
-  {
-    if (ai->ai_flags & gai_clone_flag)
-    {
-      if (ai->ai_socktype != 0)
-      {
-        ai = gai_clone(ai);
-        if (ai == 0)
-          return -1;
-        // ai now points to newly cloned entry.
-      }
-    }
-    else if (ai->ai_socktype != socktype)
-    {
-      // Ignore if mismatch on socket type.
-      continue;
-    }
-
-    ai->ai_socktype = socktype;
-
-    switch (ai->ai_family)
-    {
-    case ASIO_OS_DEF(AF_INET):
-      {
-        sockaddr_in4_type* sinptr =
-          reinterpret_cast<sockaddr_in4_type*>(ai->ai_addr);
-        sinptr->sin_port = port;
-        ++num_found;
-        break;
-      }
-    case ASIO_OS_DEF(AF_INET6):
-      {
-        sockaddr_in6_type* sin6ptr =
-          reinterpret_cast<sockaddr_in6_type*>(ai->ai_addr);
-        sin6ptr->sin6_port = port;
-        ++num_found;
-        break;
-      }
-    default:
-      break;
-    }
-  }
-
-  return num_found;
-}
-
-inline int gai_serv(addrinfo_type* aihead,
-    const addrinfo_type* hints, const char* serv)
-{
-  using namespace std;
-
-  int num_found = 0;
-
-  if (
-#if defined(AI_NUMERICSERV)
-      (hints->ai_flags & AI_NUMERICSERV) ||
-#endif
-      isdigit(static_cast<unsigned char>(serv[0])))
-  {
-    int port = htons(atoi(serv));
-    if (hints->ai_socktype)
-    {
-      // Caller specifies socket type.
-      int rc = gai_port(aihead, port, hints->ai_socktype);
-      if (rc < 0)
-        return EAI_MEMORY;
-      num_found += rc;
-    }
-    else
-    {
-      // Caller does not specify socket type.
-      int rc = gai_port(aihead, port, SOCK_STREAM);
-      if (rc < 0)
-        return EAI_MEMORY;
-      num_found += rc;
-      rc = gai_port(aihead, port, SOCK_DGRAM);
-      if (rc < 0)
-        return EAI_MEMORY;
-      num_found += rc;
-    }
-  }
-  else
-  {
-    // Try service name with TCP first, then UDP.
-    if (hints->ai_socktype == 0 || hints->ai_socktype == SOCK_STREAM)
-    {
-      servent* sptr = getservbyname(serv, "tcp");
-      if (sptr != 0)
-      {
-        int rc = gai_port(aihead, sptr->s_port, SOCK_STREAM);
-        if (rc < 0)
-          return EAI_MEMORY;
-        num_found += rc;
-      }
-    }
-    if (hints->ai_socktype == 0 || hints->ai_socktype == SOCK_DGRAM)
-    {
-      servent* sptr = getservbyname(serv, "udp");
-      if (sptr != 0)
-      {
-        int rc = gai_port(aihead, sptr->s_port, SOCK_DGRAM);
-        if (rc < 0)
-          return EAI_MEMORY;
-        num_found += rc;
-      }
-    }
-  }
-
-  if (num_found == 0)
-  {
-    if (hints->ai_socktype == 0)
-    {
-      // All calls to getservbyname() failed.
-      return EAI_NONAME;
-    }
-    else
-    {
-      // Service not supported for socket type.
-      return EAI_SERVICE;
-    }
-  }
-
-  return 0;
-}
-
-inline int gai_echeck(const char* host, const char* service,
-    int flags, int family, int socktype, int protocol)
-{
-  (void)(flags);
-  (void)(protocol);
-
-  // Host or service must be specified.
-  if (host == 0 || host[0] == '\0')
-    if (service == 0 || service[0] == '\0')
-      return EAI_NONAME;
-
-  // Check combination of family and socket type.
-  switch (family)
-  {
-  case ASIO_OS_DEF(AF_UNSPEC):
-    break;
-  case ASIO_OS_DEF(AF_INET):
-  case ASIO_OS_DEF(AF_INET6):
-    if (service != 0 && service[0] != '\0')
-      if (socktype != 0 && socktype != SOCK_STREAM && socktype != SOCK_DGRAM)
-        return EAI_SOCKTYPE;
-    break;
-  default:
-    return EAI_FAMILY;
-  }
-
-  return 0;
-}
-
-inline void freeaddrinfo_emulation(addrinfo_type* aihead)
-{
-  addrinfo_type* ai = aihead;
-  while (ai)
-  {
-    gai_free(ai->ai_addr);
-    gai_free(ai->ai_canonname);
-    addrinfo_type* ainext = ai->ai_next;
-    gai_free(ai);
-    ai = ainext;
-  }
-}
-
-inline int getaddrinfo_emulation(const char* host, const char* service,
-    const addrinfo_type* hintsp, addrinfo_type** result)
-{
-  // Set up linked list of addrinfo structures.
-  addrinfo_type* aihead = 0;
-  addrinfo_type** ainext = &aihead;
-  char* canon = 0;
-
-  // Supply default hints if not specified by caller.
-  addrinfo_type hints = addrinfo_type();
-  hints.ai_family = ASIO_OS_DEF(AF_UNSPEC);
-  if (hintsp)
-    hints = *hintsp;
-
-  // If the resolution is not specifically for AF_INET6, remove the AI_V4MAPPED
-  // and AI_ALL flags.
-#if defined(AI_V4MAPPED)
-  if (hints.ai_family != ASIO_OS_DEF(AF_INET6))
-    hints.ai_flags &= ~AI_V4MAPPED;
-#endif
-#if defined(AI_ALL)
-  if (hints.ai_family != ASIO_OS_DEF(AF_INET6))
-    hints.ai_flags &= ~AI_ALL;
-#endif
-
-  // Basic error checking.
-  int rc = gai_echeck(host, service, hints.ai_flags, hints.ai_family,
-      hints.ai_socktype, hints.ai_protocol);
-  if (rc != 0)
-  {
-    freeaddrinfo_emulation(aihead);
-    return rc;
-  }
-
-  gai_search search[2];
-  int search_count = gai_nsearch(host, &hints, search);
-  for (gai_search* sptr = search; sptr < search + search_count; ++sptr)
-  {
-    // Check for IPv4 dotted decimal string.
-    in4_addr_type inaddr;
-    asio::error_code ec;
-    if (socket_ops::inet_pton(ASIO_OS_DEF(AF_INET),
-          sptr->host, &inaddr, 0, ec) == 1)
-    {
-      if (hints.ai_family != ASIO_OS_DEF(AF_UNSPEC)
-          && hints.ai_family != ASIO_OS_DEF(AF_INET))
-      {
-        freeaddrinfo_emulation(aihead);
-        gai_free(canon);
-        return EAI_FAMILY;
-      }
-      if (sptr->family == ASIO_OS_DEF(AF_INET))
-      {
-        rc = gai_aistruct(&ainext, &hints, &inaddr, ASIO_OS_DEF(AF_INET));
-        if (rc != 0)
-        {
-          freeaddrinfo_emulation(aihead);
-          gai_free(canon);
-          return rc;
-        }
-      }
-      continue;
-    }
-
-    // Check for IPv6 hex string.
-    in6_addr_type in6addr;
-    if (socket_ops::inet_pton(ASIO_OS_DEF(AF_INET6),
-          sptr->host, &in6addr, 0, ec) == 1)
-    {
-      if (hints.ai_family != ASIO_OS_DEF(AF_UNSPEC)
-          && hints.ai_family != ASIO_OS_DEF(AF_INET6))
-      {
-        freeaddrinfo_emulation(aihead);
-        gai_free(canon);
-        return EAI_FAMILY;
-      }
-      if (sptr->family == ASIO_OS_DEF(AF_INET6))
-      {
-        rc = gai_aistruct(&ainext, &hints, &in6addr,
-            ASIO_OS_DEF(AF_INET6));
-        if (rc != 0)
-        {
-          freeaddrinfo_emulation(aihead);
-          gai_free(canon);
-          return rc;
-        }
-      }
-      continue;
-    }
-
-    // Look up hostname.
-    hostent hent;
-    char hbuf[8192] = "";
-    hostent* hptr = socket_ops::gethostbyname(sptr->host,
-        sptr->family, &hent, hbuf, sizeof(hbuf), hints.ai_flags, ec);
-    if (hptr == 0)
-    {
-      if (search_count == 2)
-      {
-        // Failure is OK if there are multiple searches.
-        continue;
-      }
-      freeaddrinfo_emulation(aihead);
-      gai_free(canon);
-      if (ec == asio::error::host_not_found)
-        return EAI_NONAME;
-      if (ec == asio::error::host_not_found_try_again)
-        return EAI_AGAIN;
-      if (ec == asio::error::no_recovery)
-        return EAI_FAIL;
-      if (ec == asio::error::no_data)
-        return EAI_NONAME;
-      return EAI_NONAME;
-    }
-
-    // Check for address family mismatch if one was specified.
-    if (hints.ai_family != ASIO_OS_DEF(AF_UNSPEC)
-        && hints.ai_family != hptr->h_addrtype)
-    {
-      freeaddrinfo_emulation(aihead);
-      gai_free(canon);
-      socket_ops::freehostent(hptr);
-      return EAI_FAMILY;
-    }
-
-    // Save canonical name first time.
-    if (host != 0 && host[0] != '\0' && hptr->h_name && hptr->h_name[0]
-        && (hints.ai_flags & AI_CANONNAME) && canon == 0)
-    {
-      std::size_t canon_len = strlen(hptr->h_name) + 1;
-      canon = gai_alloc<char>(canon_len);
-      if (canon == 0)
-      {
-        freeaddrinfo_emulation(aihead);
-        socket_ops::freehostent(hptr);
-        return EAI_MEMORY;
-      }
-      gai_strcpy(canon, hptr->h_name, canon_len);
-    }
-
-    // Create an addrinfo structure for each returned address.
-    for (char** ap = hptr->h_addr_list; *ap; ++ap)
-    {
-      rc = gai_aistruct(&ainext, &hints, *ap, hptr->h_addrtype);
-      if (rc != 0)
-      {
-        freeaddrinfo_emulation(aihead);
-        gai_free(canon);
-        socket_ops::freehostent(hptr);
-        return EAI_FAMILY;
-      }
-    }
-
-    socket_ops::freehostent(hptr);
-  }
-
-  // Check if we found anything.
-  if (aihead == 0)
-  {
-    gai_free(canon);
-    return EAI_NONAME;
-  }
-
-  // Return canonical name in first entry.
-  if (host != 0 && host[0] != '\0' && (hints.ai_flags & AI_CANONNAME))
-  {
-    if (canon)
-    {
-      aihead->ai_canonname = canon;
-      canon = 0;
-    }
-    else
-    {
-      std::size_t canonname_len = strlen(search[0].host) + 1;
-      aihead->ai_canonname = gai_alloc<char>(canonname_len);
-      if (aihead->ai_canonname == 0)
-      {
-        freeaddrinfo_emulation(aihead);
-        return EAI_MEMORY;
-      }
-      gai_strcpy(aihead->ai_canonname, search[0].host, canonname_len);
-    }
-  }
-  gai_free(canon);
-
-  // Process the service name.
-  if (service != 0 && service[0] != '\0')
-  {
-    rc = gai_serv(aihead, &hints, service);
-    if (rc != 0)
-    {
-      freeaddrinfo_emulation(aihead);
-      return rc;
-    }
-  }
-
-  // Return result to caller.
-  *result = aihead;
-  return 0;
-}
-
-inline asio::error_code getnameinfo_emulation(
-    const socket_addr_type* sa, std::size_t salen, char* host,
-    std::size_t hostlen, char* serv, std::size_t servlen, int flags,
-    asio::error_code& ec)
-{
-  using namespace std;
-
-  const char* addr;
-  size_t addr_len;
-  unsigned short port;
-  switch (sa->sa_family)
-  {
-  case ASIO_OS_DEF(AF_INET):
-    if (salen != sizeof(sockaddr_in4_type))
-    {
-      return ec = asio::error::invalid_argument;
-    }
-    addr = reinterpret_cast<const char*>(
-        &reinterpret_cast<const sockaddr_in4_type*>(sa)->sin_addr);
-    addr_len = sizeof(in4_addr_type);
-    port = reinterpret_cast<const sockaddr_in4_type*>(sa)->sin_port;
-    break;
-  case ASIO_OS_DEF(AF_INET6):
-    if (salen != sizeof(sockaddr_in6_type))
-    {
-      return ec = asio::error::invalid_argument;
-    }
-    addr = reinterpret_cast<const char*>(
-        &reinterpret_cast<const sockaddr_in6_type*>(sa)->sin6_addr);
-    addr_len = sizeof(in6_addr_type);
-    port = reinterpret_cast<const sockaddr_in6_type*>(sa)->sin6_port;
-    break;
-  default:
-    return ec = asio::error::address_family_not_supported;
-  }
-
-  if (host && hostlen > 0)
-  {
-    if (flags & NI_NUMERICHOST)
-    {
-      if (socket_ops::inet_ntop(sa->sa_family, addr, host, hostlen, 0, ec) == 0)
-      {
-        return ec;
-      }
-    }
-    else
-    {
-      hostent hent;
-      char hbuf[8192] = "";
-      hostent* hptr = socket_ops::gethostbyaddr(addr,
-          static_cast<int>(addr_len), sa->sa_family,
-          &hent, hbuf, sizeof(hbuf), ec);
-      if (hptr && hptr->h_name && hptr->h_name[0] != '\0')
-      {
-        if (flags & NI_NOFQDN)
-        {
-          char* dot = strchr(hptr->h_name, '.');
-          if (dot)
-          {
-            *dot = 0;
-          }
-        }
-        gai_strcpy(host, hptr->h_name, hostlen);
-        socket_ops::freehostent(hptr);
-      }
-      else
-      {
-        socket_ops::freehostent(hptr);
-        if (flags & NI_NAMEREQD)
-        {
-          return ec = asio::error::host_not_found;
-        }
-        if (socket_ops::inet_ntop(sa->sa_family,
-              addr, host, hostlen, 0, ec) == 0)
-        {
-          return ec;
-        }
-      }
-    }
-  }
-
-  if (serv && servlen > 0)
-  {
-    if (flags & NI_NUMERICSERV)
-    {
-      if (servlen < 6)
-      {
-        return ec = asio::error::no_buffer_space;
-      }
-#if defined(ASIO_HAS_SECURE_RTL)
-      sprintf_s(serv, servlen, "%u", ntohs(port));
-#else // defined(ASIO_HAS_SECURE_RTL)
-      sprintf(serv, "%u", ntohs(port));
-#endif // defined(ASIO_HAS_SECURE_RTL)
-    }
-    else
-    {
-#if defined(ASIO_HAS_PTHREADS)
-      static ::pthread_mutex_t mutex = PTHREAD_MUTEX_INITIALIZER;
-      ::pthread_mutex_lock(&mutex);
-#endif // defined(ASIO_HAS_PTHREADS)
-      servent* sptr = ::getservbyport(port, (flags & NI_DGRAM) ? "udp" : 0);
-      if (sptr && sptr->s_name && sptr->s_name[0] != '\0')
-      {
-        gai_strcpy(serv, sptr->s_name, servlen);
-      }
-      else
-      {
-        if (servlen < 6)
-        {
-          return ec = asio::error::no_buffer_space;
-        }
-#if defined(ASIO_HAS_SECURE_RTL)
-        sprintf_s(serv, servlen, "%u", ntohs(port));
-#else // defined(ASIO_HAS_SECURE_RTL)
-        sprintf(serv, "%u", ntohs(port));
-#endif // defined(ASIO_HAS_SECURE_RTL)
-      }
-#if defined(ASIO_HAS_PTHREADS)
-      ::pthread_mutex_unlock(&mutex);
-#endif // defined(ASIO_HAS_PTHREADS)
-    }
-  }
-
-  ec = asio::error_code();
-  return ec;
-}
-
-#endif // !defined(ASIO_HAS_GETADDRINFO)
-
-inline asio::error_code translate_addrinfo_error(int error)
-{
-  switch (error)
-  {
-  case 0:
-    return asio::error_code();
-  case EAI_AGAIN:
-    return asio::error::host_not_found_try_again;
-  case EAI_BADFLAGS:
-    return asio::error::invalid_argument;
-  case EAI_FAIL:
-    return asio::error::no_recovery;
-  case EAI_FAMILY:
-    return asio::error::address_family_not_supported;
-  case EAI_MEMORY:
-    return asio::error::no_memory;
-  case EAI_NONAME:
-#if defined(EAI_ADDRFAMILY)
-  case EAI_ADDRFAMILY:
-#endif
-#if defined(EAI_NODATA) && (EAI_NODATA != EAI_NONAME)
-  case EAI_NODATA:
-#endif
-    return asio::error::host_not_found;
-  case EAI_SERVICE:
-    return asio::error::service_not_found;
-  case EAI_SOCKTYPE:
-    return asio::error::socket_type_not_supported;
-  default: // Possibly the non-portable EAI_SYSTEM.
-#if defined(ASIO_WINDOWS) || defined(__CYGWIN__)
-    return asio::error_code(
-        WSAGetLastError(), asio::error::get_system_category());
-#else
-    return asio::error_code(
-        errno, asio::error::get_system_category());
-#endif
-  }
-}
-
-asio::error_code getaddrinfo(const char* host,
-    const char* service, const addrinfo_type& hints,
-    addrinfo_type** result, asio::error_code& ec)
-{
-  host = (host && *host) ? host : 0;
-  service = (service && *service) ? service : 0;
-  clear_last_error();
-#if defined(ASIO_WINDOWS) || defined(__CYGWIN__)
-# if defined(ASIO_HAS_GETADDRINFO)
-  // Building for Windows XP, Windows Server 2003, or later.
-  int error = ::getaddrinfo(host, service, &hints, result);
-  return ec = translate_addrinfo_error(error);
-# else
-  // Building for Windows 2000 or earlier.
-  typedef int (WSAAPI *gai_t)(const char*,
-      const char*, const addrinfo_type*, addrinfo_type**);
-  if (HMODULE winsock_module = ::GetModuleHandleA("ws2_32"))
-  {
-    if (gai_t gai = (gai_t)::GetProcAddress(winsock_module, "getaddrinfo"))
-    {
-      int error = gai(host, service, &hints, result);
-      return ec = translate_addrinfo_error(error);
-    }
-  }
-  int error = getaddrinfo_emulation(host, service, &hints, result);
-  return ec = translate_addrinfo_error(error);
-# endif
-#elif !defined(ASIO_HAS_GETADDRINFO)
-  int error = getaddrinfo_emulation(host, service, &hints, result);
-  return ec = translate_addrinfo_error(error);
-#else
-  int error = ::getaddrinfo(host, service, &hints, result);
-#if defined(__MACH__) && defined(__APPLE__)
-  using namespace std; // For isdigit and atoi.
-  if (error == 0 && service && isdigit(static_cast<unsigned char>(service[0])))
-  {
-    u_short_type port = host_to_network_short(atoi(service));
-    for (addrinfo_type* ai = *result; ai; ai = ai->ai_next)
-    {
-      switch (ai->ai_family)
-      {
-      case ASIO_OS_DEF(AF_INET):
-        {
-          sockaddr_in4_type* sinptr =
-            reinterpret_cast<sockaddr_in4_type*>(ai->ai_addr);
-          if (sinptr->sin_port == 0)
-            sinptr->sin_port = port;
-          break;
-        }
-      case ASIO_OS_DEF(AF_INET6):
-        {
-          sockaddr_in6_type* sin6ptr =
-            reinterpret_cast<sockaddr_in6_type*>(ai->ai_addr);
-          if (sin6ptr->sin6_port == 0)
-            sin6ptr->sin6_port = port;
-          break;
-        }
-      default:
-        break;
-      }
-    }
-  }
-#endif
-  return ec = translate_addrinfo_error(error);
-#endif
-}
-
-asio::error_code background_getaddrinfo(
-    const weak_cancel_token_type& cancel_token, const char* host,
-    const char* service, const addrinfo_type& hints,
-    addrinfo_type** result, asio::error_code& ec)
-{
-  if (cancel_token.expired())
-    ec = asio::error::operation_aborted;
-  else
-    socket_ops::getaddrinfo(host, service, hints, result, ec);
-  return ec;
-}
-
-void freeaddrinfo(addrinfo_type* ai)
-{
-#if defined(ASIO_WINDOWS) || defined(__CYGWIN__)
-# if defined(ASIO_HAS_GETADDRINFO)
-  // Building for Windows XP, Windows Server 2003, or later.
-  ::freeaddrinfo(ai);
-# else
-  // Building for Windows 2000 or earlier.
-  typedef int (WSAAPI *fai_t)(addrinfo_type*);
-  if (HMODULE winsock_module = ::GetModuleHandleA("ws2_32"))
-  {
-    if (fai_t fai = (fai_t)::GetProcAddress(winsock_module, "freeaddrinfo"))
-    {
-      fai(ai);
-      return;
-    }
-  }
-  freeaddrinfo_emulation(ai);
-# endif
-#elif !defined(ASIO_HAS_GETADDRINFO)
-  freeaddrinfo_emulation(ai);
-#else
-  ::freeaddrinfo(ai);
-#endif
-}
-
-asio::error_code getnameinfo(const socket_addr_type* addr,
-    std::size_t addrlen, char* host, std::size_t hostlen,
-    char* serv, std::size_t servlen, int flags, asio::error_code& ec)
-{
-#if defined(ASIO_WINDOWS) || defined(__CYGWIN__)
-# if defined(ASIO_HAS_GETADDRINFO)
-  // Building for Windows XP, Windows Server 2003, or later.
-  clear_last_error();
-  int error = ::getnameinfo(addr, static_cast<socklen_t>(addrlen),
-      host, static_cast<DWORD>(hostlen),
-      serv, static_cast<DWORD>(servlen), flags);
-  return ec = translate_addrinfo_error(error);
-# else
-  // Building for Windows 2000 or earlier.
-  typedef int (WSAAPI *gni_t)(const socket_addr_type*,
-      int, char*, DWORD, char*, DWORD, int);
-  if (HMODULE winsock_module = ::GetModuleHandleA("ws2_32"))
-  {
-    if (gni_t gni = (gni_t)::GetProcAddress(winsock_module, "getnameinfo"))
-    {
-      clear_last_error();
-      int error = gni(addr, static_cast<int>(addrlen),
-          host, static_cast<DWORD>(hostlen),
-          serv, static_cast<DWORD>(servlen), flags);
-      return ec = translate_addrinfo_error(error);
-    }
-  }
-  clear_last_error();
-  return getnameinfo_emulation(addr, addrlen,
-      host, hostlen, serv, servlen, flags, ec);
-# endif
-#elif !defined(ASIO_HAS_GETADDRINFO)
-  using namespace std; // For memcpy.
-  sockaddr_storage_type tmp_addr;
-  memcpy(&tmp_addr, addr, addrlen);
-  addr = reinterpret_cast<socket_addr_type*>(&tmp_addr);
-  clear_last_error();
-  return getnameinfo_emulation(addr, addrlen,
-      host, hostlen, serv, servlen, flags, ec);
-#else
-  clear_last_error();
-  int error = ::getnameinfo(addr, addrlen, host, hostlen, serv, servlen, flags);
-  return ec = translate_addrinfo_error(error);
-#endif
-}
-
-asio::error_code sync_getnameinfo(
-    const socket_addr_type* addr, std::size_t addrlen,
-    char* host, std::size_t hostlen, char* serv,
-    std::size_t servlen, int sock_type, asio::error_code& ec)
-{
-  // First try resolving with the service name. If that fails try resolving
-  // but allow the service to be returned as a number.
-  int flags = (sock_type == SOCK_DGRAM) ? NI_DGRAM : 0;
-  socket_ops::getnameinfo(addr, addrlen, host,
-      hostlen, serv, servlen, flags, ec);
-  if (ec)
-  {
-    socket_ops::getnameinfo(addr, addrlen, host, hostlen,
-        serv, servlen, flags | NI_NUMERICSERV, ec);
-  }
-
-  return ec;
-}
-
-asio::error_code background_getnameinfo(
-    const weak_cancel_token_type& cancel_token,
-    const socket_addr_type* addr, std::size_t addrlen,
-    char* host, std::size_t hostlen, char* serv,
-    std::size_t servlen, int sock_type, asio::error_code& ec)
-{
-  if (cancel_token.expired())
-  {
-    ec = asio::error::operation_aborted;
-  }
-  else
-  {
-    // First try resolving with the service name. If that fails try resolving
-    // but allow the service to be returned as a number.
-    int flags = (sock_type == SOCK_DGRAM) ? NI_DGRAM : 0;
-    socket_ops::getnameinfo(addr, addrlen, host,
-        hostlen, serv, servlen, flags, ec);
-    if (ec)
-    {
-      socket_ops::getnameinfo(addr, addrlen, host, hostlen,
-          serv, servlen, flags | NI_NUMERICSERV, ec);
-    }
-  }
-
-  return ec;
-}
-
-#endif // !defined(ASIO_WINDOWS_RUNTIME)
-
-u_long_type network_to_host_long(u_long_type value)
-{
-#if defined(ASIO_WINDOWS_RUNTIME)
-  unsigned char* value_p = reinterpret_cast<unsigned char*>(&value);
-  u_long_type result = (static_cast<u_long_type>(value_p[0]) << 24)
-    | (static_cast<u_long_type>(value_p[1]) << 16)
-    | (static_cast<u_long_type>(value_p[2]) << 8)
-    | static_cast<u_long_type>(value_p[3]);
-  return result;
-#else // defined(ASIO_WINDOWS_RUNTIME)
-  return ntohl(value);
-#endif // defined(ASIO_WINDOWS_RUNTIME)
-}
-
-u_long_type host_to_network_long(u_long_type value)
-{
-#if defined(ASIO_WINDOWS_RUNTIME)
-  u_long_type result;
-  unsigned char* result_p = reinterpret_cast<unsigned char*>(&result);
-  result_p[0] = static_cast<unsigned char>((value >> 24) & 0xFF);
-  result_p[1] = static_cast<unsigned char>((value >> 16) & 0xFF);
-  result_p[2] = static_cast<unsigned char>((value >> 8) & 0xFF);
-  result_p[3] = static_cast<unsigned char>(value & 0xFF);
-  return result;
-#else // defined(ASIO_WINDOWS_RUNTIME)
-  return htonl(value);
-#endif // defined(ASIO_WINDOWS_RUNTIME)
-}
-
-u_short_type network_to_host_short(u_short_type value)
-{
-#if defined(ASIO_WINDOWS_RUNTIME)
-  unsigned char* value_p = reinterpret_cast<unsigned char*>(&value);
-  u_short_type result = (static_cast<u_short_type>(value_p[0]) << 8)
-    | static_cast<u_short_type>(value_p[1]);
-  return result;
-#else // defined(ASIO_WINDOWS_RUNTIME)
-  return ntohs(value);
-#endif // defined(ASIO_WINDOWS_RUNTIME)
-}
-
-u_short_type host_to_network_short(u_short_type value)
-{
-#if defined(ASIO_WINDOWS_RUNTIME)
-  u_short_type result;
-  unsigned char* result_p = reinterpret_cast<unsigned char*>(&result);
-  result_p[0] = static_cast<unsigned char>((value >> 8) & 0xFF);
-  result_p[1] = static_cast<unsigned char>(value & 0xFF);
-  return result;
-#else // defined(ASIO_WINDOWS_RUNTIME)
-  return htons(value);
-#endif // defined(ASIO_WINDOWS_RUNTIME)
-}
-
-} // namespace socket_ops
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // ASIO_DETAIL_SOCKET_OPS_IPP
diff --git a/lib/asio/detail/impl/socket_select_interrupter.ipp b/lib/asio/detail/impl/socket_select_interrupter.ipp
deleted file mode 100644
index 052f2a7..0000000
--- a/lib/asio/detail/impl/socket_select_interrupter.ipp
+++ /dev/null
@@ -1,176 +0,0 @@
-//
-// detail/impl/socket_select_interrupter.ipp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_IMPL_SOCKET_SELECT_INTERRUPTER_IPP
-#define ASIO_DETAIL_IMPL_SOCKET_SELECT_INTERRUPTER_IPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-
-#if !defined(ASIO_WINDOWS_RUNTIME)
-
-#if defined(ASIO_WINDOWS) \
-  || defined(__CYGWIN__) \
-  || defined(__SYMBIAN32__)
-
-#include <cstdlib>
-#include "asio/detail/socket_holder.hpp"
-#include "asio/detail/socket_ops.hpp"
-#include "asio/detail/socket_select_interrupter.hpp"
-#include "asio/detail/throw_error.hpp"
-#include "asio/error.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-socket_select_interrupter::socket_select_interrupter()
-{
-  open_descriptors();
-}
-
-void socket_select_interrupter::open_descriptors()
-{
-  asio::error_code ec;
-  socket_holder acceptor(socket_ops::socket(
-        AF_INET, SOCK_STREAM, IPPROTO_TCP, ec));
-  if (acceptor.get() == invalid_socket)
-    asio::detail::throw_error(ec, "socket_select_interrupter");
-
-  int opt = 1;
-  socket_ops::state_type acceptor_state = 0;
-  socket_ops::setsockopt(acceptor.get(), acceptor_state,
-      SOL_SOCKET, SO_REUSEADDR, &opt, sizeof(opt), ec);
-
-  using namespace std; // For memset.
-  sockaddr_in4_type addr;
-  std::size_t addr_len = sizeof(addr);
-  memset(&addr, 0, sizeof(addr));
-  addr.sin_family = AF_INET;
-  addr.sin_addr.s_addr = socket_ops::host_to_network_long(INADDR_LOOPBACK);
-  addr.sin_port = 0;
-  if (socket_ops::bind(acceptor.get(), (const socket_addr_type*)&addr,
-        addr_len, ec) == socket_error_retval)
-    asio::detail::throw_error(ec, "socket_select_interrupter");
-
-  if (socket_ops::getsockname(acceptor.get(), (socket_addr_type*)&addr,
-        &addr_len, ec) == socket_error_retval)
-    asio::detail::throw_error(ec, "socket_select_interrupter");
-
-  // Some broken firewalls on Windows will intermittently cause getsockname to
-  // return 0.0.0.0 when the socket is actually bound to 127.0.0.1. We
-  // explicitly specify the target address here to work around this problem.
-  if (addr.sin_addr.s_addr == socket_ops::host_to_network_long(INADDR_ANY))
-    addr.sin_addr.s_addr = socket_ops::host_to_network_long(INADDR_LOOPBACK);
-
-  if (socket_ops::listen(acceptor.get(),
-        SOMAXCONN, ec) == socket_error_retval)
-    asio::detail::throw_error(ec, "socket_select_interrupter");
-
-  socket_holder client(socket_ops::socket(
-        AF_INET, SOCK_STREAM, IPPROTO_TCP, ec));
-  if (client.get() == invalid_socket)
-    asio::detail::throw_error(ec, "socket_select_interrupter");
-
-  if (socket_ops::connect(client.get(), (const socket_addr_type*)&addr,
-        addr_len, ec) == socket_error_retval)
-    asio::detail::throw_error(ec, "socket_select_interrupter");
-
-  socket_holder server(socket_ops::accept(acceptor.get(), 0, 0, ec));
-  if (server.get() == invalid_socket)
-    asio::detail::throw_error(ec, "socket_select_interrupter");
-  
-  ioctl_arg_type non_blocking = 1;
-  socket_ops::state_type client_state = 0;
-  if (socket_ops::ioctl(client.get(), client_state,
-        FIONBIO, &non_blocking, ec))
-    asio::detail::throw_error(ec, "socket_select_interrupter");
-
-  opt = 1;
-  socket_ops::setsockopt(client.get(), client_state,
-      IPPROTO_TCP, TCP_NODELAY, &opt, sizeof(opt), ec);
-
-  non_blocking = 1;
-  socket_ops::state_type server_state = 0;
-  if (socket_ops::ioctl(server.get(), server_state,
-        FIONBIO, &non_blocking, ec))
-    asio::detail::throw_error(ec, "socket_select_interrupter");
-
-  opt = 1;
-  socket_ops::setsockopt(server.get(), server_state,
-      IPPROTO_TCP, TCP_NODELAY, &opt, sizeof(opt), ec);
-
-  read_descriptor_ = server.release();
-  write_descriptor_ = client.release();
-}
-
-socket_select_interrupter::~socket_select_interrupter()
-{
-  close_descriptors();
-}
-
-void socket_select_interrupter::close_descriptors()
-{
-  asio::error_code ec;
-  socket_ops::state_type state = socket_ops::internal_non_blocking;
-  if (read_descriptor_ != invalid_socket)
-    socket_ops::close(read_descriptor_, state, true, ec);
-  if (write_descriptor_ != invalid_socket)
-    socket_ops::close(write_descriptor_, state, true, ec);
-}
-
-void socket_select_interrupter::recreate()
-{
-  close_descriptors();
-
-  write_descriptor_ = invalid_socket;
-  read_descriptor_ = invalid_socket;
-
-  open_descriptors();
-}
-
-void socket_select_interrupter::interrupt()
-{
-  char byte = 0;
-  socket_ops::buf b;
-  socket_ops::init_buf(b, &byte, 1);
-  asio::error_code ec;
-  socket_ops::send(write_descriptor_, &b, 1, 0, ec);
-}
-
-bool socket_select_interrupter::reset()
-{
-  char data[1024];
-  socket_ops::buf b;
-  socket_ops::init_buf(b, data, sizeof(data));
-  asio::error_code ec;
-  int bytes_read = socket_ops::recv(read_descriptor_, &b, 1, 0, ec);
-  bool was_interrupted = (bytes_read > 0);
-  while (bytes_read == sizeof(data))
-    bytes_read = socket_ops::recv(read_descriptor_, &b, 1, 0, ec);
-  return was_interrupted;
-}
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // defined(ASIO_WINDOWS)
-       // || defined(__CYGWIN__)
-       // || defined(__SYMBIAN32__)
-
-#endif // !defined(ASIO_WINDOWS_RUNTIME)
-
-#endif // ASIO_DETAIL_IMPL_SOCKET_SELECT_INTERRUPTER_IPP
diff --git a/lib/asio/detail/impl/strand_executor_service.hpp b/lib/asio/detail/impl/strand_executor_service.hpp
deleted file mode 100644
index 0e18ca0..0000000
--- a/lib/asio/detail/impl/strand_executor_service.hpp
+++ /dev/null
@@ -1,179 +0,0 @@
-//
-// detail/impl/strand_executor_service.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_IMPL_STRAND_EXECUTOR_SERVICE_HPP
-#define ASIO_DETAIL_IMPL_STRAND_EXECUTOR_SERVICE_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/call_stack.hpp"
-#include "asio/detail/fenced_block.hpp"
-#include "asio/detail/handler_invoke_helpers.hpp"
-#include "asio/detail/recycling_allocator.hpp"
-#include "asio/executor_work_guard.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-template <typename Executor>
-class strand_executor_service::invoker
-{
-public:
-  invoker(const implementation_type& impl, Executor& ex)
-    : impl_(impl),
-      work_(ex)
-  {
-  }
-
-  invoker(const invoker& other)
-    : impl_(other.impl_),
-      work_(other.work_)
-  {
-  }
-
-#if defined(ASIO_HAS_MOVE)
-  invoker(invoker&& other)
-    : impl_(ASIO_MOVE_CAST(implementation_type)(other.impl_)),
-      work_(ASIO_MOVE_CAST(executor_work_guard<Executor>)(other.work_))
-  {
-  }
-#endif // defined(ASIO_HAS_MOVE)
-
-  struct on_invoker_exit
-  {
-    invoker* this_;
-
-    ~on_invoker_exit()
-    {
-      this_->impl_->mutex_->lock();
-      this_->impl_->ready_queue_.push(this_->impl_->waiting_queue_);
-      bool more_handlers = this_->impl_->locked_ =
-        !this_->impl_->ready_queue_.empty();
-      this_->impl_->mutex_->unlock();
-
-      if (more_handlers)
-      {
-        Executor ex(this_->work_.get_executor());
-        recycling_allocator<void> allocator;
-        ex.post(ASIO_MOVE_CAST(invoker)(*this_), allocator);
-      }
-    }
-  };
-
-  void operator()()
-  {
-    // Indicate that this strand is executing on the current thread.
-    call_stack<strand_impl>::context ctx(impl_.get());
-
-    // Ensure the next handler, if any, is scheduled on block exit.
-    on_invoker_exit on_exit = { this };
-    (void)on_exit;
-
-    // Run all ready handlers. No lock is required since the ready queue is
-    // accessed only within the strand.
-    asio::error_code ec;
-    while (scheduler_operation* o = impl_->ready_queue_.front())
-    {
-      impl_->ready_queue_.pop();
-      o->complete(impl_.get(), ec, 0);
-    }
-  }
-
-private:
-  implementation_type impl_;
-  executor_work_guard<Executor> work_;
-};
-
-template <typename Executor, typename Function, typename Allocator>
-void strand_executor_service::dispatch(const implementation_type& impl,
-    Executor& ex, ASIO_MOVE_ARG(Function) function, const Allocator& a)
-{
-  typedef typename decay<Function>::type function_type;
-
-  // If we are already in the strand then the function can run immediately.
-  if (call_stack<strand_impl>::contains(impl.get()))
-  {
-    // Make a local, non-const copy of the function.
-    function_type tmp(ASIO_MOVE_CAST(Function)(function));
-
-    fenced_block b(fenced_block::full);
-    asio_handler_invoke_helpers::invoke(tmp, tmp);
-    return;
-  }
-
-  // Allocate and construct an operation to wrap the function.
-  typedef executor_op<function_type, Allocator> op;
-  typename op::ptr p = { detail::addressof(a), op::ptr::allocate(a), 0 };
-  p.p = new (p.v) op(ASIO_MOVE_CAST(Function)(function), a);
-
-  ASIO_HANDLER_CREATION((impl->service_->context(), *p.p,
-        "strand_executor", impl.get(), 0, "dispatch"));
-
-  // Add the function to the strand and schedule the strand if required.
-  bool first = enqueue(impl, p.p);
-  p.v = p.p = 0;
-  if (first)
-    ex.dispatch(invoker<Executor>(impl, ex), a);
-}
-
-// Request invocation of the given function and return immediately.
-template <typename Executor, typename Function, typename Allocator>
-void strand_executor_service::post(const implementation_type& impl,
-    Executor& ex, ASIO_MOVE_ARG(Function) function, const Allocator& a)
-{
-  typedef typename decay<Function>::type function_type;
-
-  // Allocate and construct an operation to wrap the function.
-  typedef executor_op<function_type, Allocator> op;
-  typename op::ptr p = { detail::addressof(a), op::ptr::allocate(a), 0 };
-  p.p = new (p.v) op(ASIO_MOVE_CAST(Function)(function), a);
-
-  ASIO_HANDLER_CREATION((impl->service_->context(), *p.p,
-        "strand_executor", impl.get(), 0, "post"));
-
-  // Add the function to the strand and schedule the strand if required.
-  bool first = enqueue(impl, p.p);
-  p.v = p.p = 0;
-  if (first)
-    ex.post(invoker<Executor>(impl, ex), a);
-}
-
-// Request invocation of the given function and return immediately.
-template <typename Executor, typename Function, typename Allocator>
-void strand_executor_service::defer(const implementation_type& impl,
-    Executor& ex, ASIO_MOVE_ARG(Function) function, const Allocator& a)
-{
-  typedef typename decay<Function>::type function_type;
-
-  // Allocate and construct an operation to wrap the function.
-  typedef executor_op<function_type, Allocator> op;
-  typename op::ptr p = { detail::addressof(a), op::ptr::allocate(a), 0 };
-  p.p = new (p.v) op(ASIO_MOVE_CAST(Function)(function), a);
-
-  ASIO_HANDLER_CREATION((impl->service_->context(), *p.p,
-        "strand_executor", impl.get(), 0, "defer"));
-
-  // Add the function to the strand and schedule the strand if required.
-  bool first = enqueue(impl, p.p);
-  p.v = p.p = 0;
-  if (first)
-    ex.defer(invoker<Executor>(impl, ex), a);
-}
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // ASIO_DETAIL_IMPL_STRAND_EXECUTOR_SERVICE_HPP
diff --git a/lib/asio/detail/impl/strand_executor_service.ipp b/lib/asio/detail/impl/strand_executor_service.ipp
deleted file mode 100644
index 365652e..0000000
--- a/lib/asio/detail/impl/strand_executor_service.ipp
+++ /dev/null
@@ -1,134 +0,0 @@
-//
-// detail/impl/strand_executor_service.ipp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_IMPL_STRAND_EXECUTOR_SERVICE_IPP
-#define ASIO_DETAIL_IMPL_STRAND_EXECUTOR_SERVICE_IPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-#include "asio/detail/strand_executor_service.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-strand_executor_service::strand_executor_service(execution_context& ctx)
-  : execution_context_service_base<strand_executor_service>(ctx),
-    mutex_(),
-    salt_(0),
-    impl_list_(0)
-{
-}
-
-void strand_executor_service::shutdown()
-{
-  op_queue<scheduler_operation> ops;
-
-  asio::detail::mutex::scoped_lock lock(mutex_);
-
-  strand_impl* impl = impl_list_;
-  while (impl)
-  {
-    impl->mutex_->lock();
-    impl->shutdown_ = true;
-    ops.push(impl->waiting_queue_);
-    ops.push(impl->ready_queue_);
-    impl->mutex_->unlock();
-    impl = impl->next_;
-  }
-}
-
-strand_executor_service::implementation_type
-strand_executor_service::create_implementation()
-{
-  implementation_type new_impl(new strand_impl);
-  new_impl->locked_ = false;
-  new_impl->shutdown_ = false;
-
-  asio::detail::mutex::scoped_lock lock(mutex_);
-
-  // Select a mutex from the pool of shared mutexes.
-  std::size_t salt = salt_++;
-  std::size_t mutex_index = reinterpret_cast<std::size_t>(new_impl.get());
-  mutex_index += (reinterpret_cast<std::size_t>(new_impl.get()) >> 3);
-  mutex_index ^= salt + 0x9e3779b9 + (mutex_index << 6) + (mutex_index >> 2);
-  mutex_index = mutex_index % num_mutexes;
-  if (!mutexes_[mutex_index].get())
-    mutexes_[mutex_index].reset(new mutex);
-  new_impl->mutex_ = mutexes_[mutex_index].get();
-
-  // Insert implementation into linked list of all implementations.
-  new_impl->next_ = impl_list_;
-  new_impl->prev_ = 0;
-  if (impl_list_)
-    impl_list_->prev_ = new_impl.get();
-  impl_list_ = new_impl.get();
-  new_impl->service_ = this;
-
-  return new_impl;
-}
-
-strand_executor_service::strand_impl::~strand_impl()
-{
-  asio::detail::mutex::scoped_lock lock(service_->mutex_);
-
-  // Remove implementation from linked list of all implementations.
-  if (service_->impl_list_ == this)
-    service_->impl_list_ = next_;
-  if (prev_)
-    prev_->next_ = next_;
-  if (next_)
-    next_->prev_= prev_;
-}
-
-bool strand_executor_service::enqueue(const implementation_type& impl,
-    scheduler_operation* op)
-{
-  impl->mutex_->lock();
-  if (impl->shutdown_)
-  {
-    impl->mutex_->unlock();
-    op->destroy();
-    return false;
-  }
-  else if (impl->locked_)
-  {
-    // Some other function already holds the strand lock. Enqueue for later.
-    impl->waiting_queue_.push(op);
-    impl->mutex_->unlock();
-    return false;
-  }
-  else
-  {
-    // The function is acquiring the strand lock and so is responsible for
-    // scheduling the strand.
-    impl->locked_ = true;
-    impl->mutex_->unlock();
-    impl->ready_queue_.push(op);
-    return true;
-  }
-}
-
-bool strand_executor_service::running_in_this_thread(
-    const implementation_type& impl)
-{
-  return !!call_stack<strand_impl>::contains(impl.get());
-}
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // ASIO_DETAIL_IMPL_STRAND_EXECUTOR_SERVICE_IPP
diff --git a/lib/asio/detail/impl/strand_service.hpp b/lib/asio/detail/impl/strand_service.hpp
deleted file mode 100644
index da5b716..0000000
--- a/lib/asio/detail/impl/strand_service.hpp
+++ /dev/null
@@ -1,118 +0,0 @@
-//
-// detail/impl/strand_service.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_IMPL_STRAND_SERVICE_HPP
-#define ASIO_DETAIL_IMPL_STRAND_SERVICE_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/call_stack.hpp"
-#include "asio/detail/completion_handler.hpp"
-#include "asio/detail/fenced_block.hpp"
-#include "asio/detail/handler_alloc_helpers.hpp"
-#include "asio/detail/handler_invoke_helpers.hpp"
-#include "asio/detail/memory.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-inline strand_service::strand_impl::strand_impl()
-  : operation(&strand_service::do_complete),
-    locked_(false)
-{
-}
-
-struct strand_service::on_dispatch_exit
-{
-  io_context_impl* io_context_;
-  strand_impl* impl_;
-
-  ~on_dispatch_exit()
-  {
-    impl_->mutex_.lock();
-    impl_->ready_queue_.push(impl_->waiting_queue_);
-    bool more_handlers = impl_->locked_ = !impl_->ready_queue_.empty();
-    impl_->mutex_.unlock();
-
-    if (more_handlers)
-      io_context_->post_immediate_completion(impl_, false);
-  }
-};
-
-template <typename Handler>
-void strand_service::dispatch(strand_service::implementation_type& impl,
-    Handler& handler)
-{
-  // If we are already in the strand then the handler can run immediately.
-  if (call_stack<strand_impl>::contains(impl))
-  {
-    fenced_block b(fenced_block::full);
-    asio_handler_invoke_helpers::invoke(handler, handler);
-    return;
-  }
-
-  // Allocate and construct an operation to wrap the handler.
-  typedef completion_handler<Handler> op;
-  typename op::ptr p = { asio::detail::addressof(handler),
-    op::ptr::allocate(handler), 0 };
-  p.p = new (p.v) op(handler);
-
-  ASIO_HANDLER_CREATION((this->context(),
-        *p.p, "strand", impl, 0, "dispatch"));
-
-  bool dispatch_immediately = do_dispatch(impl, p.p);
-  operation* o = p.p;
-  p.v = p.p = 0;
-
-  if (dispatch_immediately)
-  {
-    // Indicate that this strand is executing on the current thread.
-    call_stack<strand_impl>::context ctx(impl);
-
-    // Ensure the next handler, if any, is scheduled on block exit.
-    on_dispatch_exit on_exit = { &io_context_, impl };
-    (void)on_exit;
-
-    completion_handler<Handler>::do_complete(
-        &io_context_, o, asio::error_code(), 0);
-  }
-}
-
-// Request the io_context to invoke the given handler and return immediately.
-template <typename Handler>
-void strand_service::post(strand_service::implementation_type& impl,
-    Handler& handler)
-{
-  bool is_continuation =
-    asio_handler_cont_helpers::is_continuation(handler);
-
-  // Allocate and construct an operation to wrap the handler.
-  typedef completion_handler<Handler> op;
-  typename op::ptr p = { asio::detail::addressof(handler),
-    op::ptr::allocate(handler), 0 };
-  p.p = new (p.v) op(handler);
-
-  ASIO_HANDLER_CREATION((this->context(),
-        *p.p, "strand", impl, 0, "post"));
-
-  do_post(impl, p.p, is_continuation);
-  p.v = p.p = 0;
-}
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // ASIO_DETAIL_IMPL_STRAND_SERVICE_HPP
diff --git a/lib/asio/detail/impl/strand_service.ipp b/lib/asio/detail/impl/strand_service.ipp
deleted file mode 100644
index cbaf25b..0000000
--- a/lib/asio/detail/impl/strand_service.ipp
+++ /dev/null
@@ -1,177 +0,0 @@
-//
-// detail/impl/strand_service.ipp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_IMPL_STRAND_SERVICE_IPP
-#define ASIO_DETAIL_IMPL_STRAND_SERVICE_IPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-#include "asio/detail/call_stack.hpp"
-#include "asio/detail/strand_service.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-struct strand_service::on_do_complete_exit
-{
-  io_context_impl* owner_;
-  strand_impl* impl_;
-
-  ~on_do_complete_exit()
-  {
-    impl_->mutex_.lock();
-    impl_->ready_queue_.push(impl_->waiting_queue_);
-    bool more_handlers = impl_->locked_ = !impl_->ready_queue_.empty();
-    impl_->mutex_.unlock();
-
-    if (more_handlers)
-      owner_->post_immediate_completion(impl_, true);
-  }
-};
-
-strand_service::strand_service(asio::io_context& io_context)
-  : asio::detail::service_base<strand_service>(io_context),
-    io_context_(asio::use_service<io_context_impl>(io_context)),
-    mutex_(),
-    salt_(0)
-{
-}
-
-void strand_service::shutdown()
-{
-  op_queue<operation> ops;
-
-  asio::detail::mutex::scoped_lock lock(mutex_);
-
-  for (std::size_t i = 0; i < num_implementations; ++i)
-  {
-    if (strand_impl* impl = implementations_[i].get())
-    {
-      ops.push(impl->waiting_queue_);
-      ops.push(impl->ready_queue_);
-    }
-  }
-}
-
-void strand_service::construct(strand_service::implementation_type& impl)
-{
-  asio::detail::mutex::scoped_lock lock(mutex_);
-
-  std::size_t salt = salt_++;
-#if defined(ASIO_ENABLE_SEQUENTIAL_STRAND_ALLOCATION)
-  std::size_t index = salt;
-#else // defined(ASIO_ENABLE_SEQUENTIAL_STRAND_ALLOCATION)
-  std::size_t index = reinterpret_cast<std::size_t>(&impl);
-  index += (reinterpret_cast<std::size_t>(&impl) >> 3);
-  index ^= salt + 0x9e3779b9 + (index << 6) + (index >> 2);
-#endif // defined(ASIO_ENABLE_SEQUENTIAL_STRAND_ALLOCATION)
-  index = index % num_implementations;
-
-  if (!implementations_[index].get())
-    implementations_[index].reset(new strand_impl);
-  impl = implementations_[index].get();
-}
-
-bool strand_service::running_in_this_thread(
-    const implementation_type& impl) const
-{
-  return call_stack<strand_impl>::contains(impl) != 0;
-}
-
-bool strand_service::do_dispatch(implementation_type& impl, operation* op)
-{
-  // If we are running inside the io_context, and no other handler already
-  // holds the strand lock, then the handler can run immediately.
-  bool can_dispatch = io_context_.can_dispatch();
-  impl->mutex_.lock();
-  if (can_dispatch && !impl->locked_)
-  {
-    // Immediate invocation is allowed.
-    impl->locked_ = true;
-    impl->mutex_.unlock();
-    return true;
-  }
-
-  if (impl->locked_)
-  {
-    // Some other handler already holds the strand lock. Enqueue for later.
-    impl->waiting_queue_.push(op);
-    impl->mutex_.unlock();
-  }
-  else
-  {
-    // The handler is acquiring the strand lock and so is responsible for
-    // scheduling the strand.
-    impl->locked_ = true;
-    impl->mutex_.unlock();
-    impl->ready_queue_.push(op);
-    io_context_.post_immediate_completion(impl, false);
-  }
-
-  return false;
-}
-
-void strand_service::do_post(implementation_type& impl,
-    operation* op, bool is_continuation)
-{
-  impl->mutex_.lock();
-  if (impl->locked_)
-  {
-    // Some other handler already holds the strand lock. Enqueue for later.
-    impl->waiting_queue_.push(op);
-    impl->mutex_.unlock();
-  }
-  else
-  {
-    // The handler is acquiring the strand lock and so is responsible for
-    // scheduling the strand.
-    impl->locked_ = true;
-    impl->mutex_.unlock();
-    impl->ready_queue_.push(op);
-    io_context_.post_immediate_completion(impl, is_continuation);
-  }
-}
-
-void strand_service::do_complete(void* owner, operation* base,
-    const asio::error_code& ec, std::size_t /*bytes_transferred*/)
-{
-  if (owner)
-  {
-    strand_impl* impl = static_cast<strand_impl*>(base);
-
-    // Indicate that this strand is executing on the current thread.
-    call_stack<strand_impl>::context ctx(impl);
-
-    // Ensure the next handler, if any, is scheduled on block exit.
-    on_do_complete_exit on_exit;
-    on_exit.owner_ = static_cast<io_context_impl*>(owner);
-    on_exit.impl_ = impl;
-
-    // Run all ready handlers. No lock is required since the ready queue is
-    // accessed only within the strand.
-    while (operation* o = impl->ready_queue_.front())
-    {
-      impl->ready_queue_.pop();
-      o->complete(owner, ec, 0);
-    }
-  }
-}
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // ASIO_DETAIL_IMPL_STRAND_SERVICE_IPP
diff --git a/lib/asio/detail/impl/throw_error.ipp b/lib/asio/detail/impl/throw_error.ipp
deleted file mode 100644
index a540cd2..0000000
--- a/lib/asio/detail/impl/throw_error.ipp
+++ /dev/null
@@ -1,60 +0,0 @@
-//
-// detail/impl/throw_error.ipp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_IMPL_THROW_ERROR_IPP
-#define ASIO_DETAIL_IMPL_THROW_ERROR_IPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-#include "asio/detail/throw_error.hpp"
-#include "asio/detail/throw_exception.hpp"
-#include "asio/system_error.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-void do_throw_error(const asio::error_code& err)
-{
-  asio::system_error e(err);
-  asio::detail::throw_exception(e);
-}
-
-void do_throw_error(const asio::error_code& err, const char* location)
-{
-  // boostify: non-boost code starts here
-#if defined(ASIO_MSVC) && defined(ASIO_HAS_STD_SYSTEM_ERROR)
-  // Microsoft's implementation of std::system_error is non-conformant in that
-  // it ignores the error code's message when a "what" string is supplied. We'll
-  // work around this by explicitly formatting the "what" string.
-  std::string what_msg = location;
-  what_msg += ": ";
-  what_msg += err.message();
-  asio::system_error e(err, what_msg);
-  asio::detail::throw_exception(e);
-#else // defined(ASIO_MSVC) && defined(ASIO_HAS_STD_SYSTEM_ERROR)
-  // boostify: non-boost code ends here
-  asio::system_error e(err, location);
-  asio::detail::throw_exception(e);
-  // boostify: non-boost code starts here
-#endif // defined(ASIO_MSVC) && defined(ASIO_HAS_STD_SYSTEM_ERROR)
-  // boostify: non-boost code ends here
-}
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // ASIO_DETAIL_IMPL_THROW_ERROR_IPP
diff --git a/lib/asio/detail/impl/timer_queue_ptime.ipp b/lib/asio/detail/impl/timer_queue_ptime.ipp
deleted file mode 100644
index 742837f..0000000
--- a/lib/asio/detail/impl/timer_queue_ptime.ipp
+++ /dev/null
@@ -1,91 +0,0 @@
-//
-// detail/impl/timer_queue_ptime.ipp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_IMPL_TIMER_QUEUE_PTIME_IPP
-#define ASIO_DETAIL_IMPL_TIMER_QUEUE_PTIME_IPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-
-#if defined(ASIO_HAS_BOOST_DATE_TIME)
-
-#include "asio/detail/timer_queue_ptime.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-timer_queue<time_traits<boost::posix_time::ptime> >::timer_queue()
-{
-}
-
-timer_queue<time_traits<boost::posix_time::ptime> >::~timer_queue()
-{
-}
-
-bool timer_queue<time_traits<boost::posix_time::ptime> >::enqueue_timer(
-    const time_type& time, per_timer_data& timer, wait_op* op)
-{
-  return impl_.enqueue_timer(time, timer, op);
-}
-
-bool timer_queue<time_traits<boost::posix_time::ptime> >::empty() const
-{
-  return impl_.empty();
-}
-
-long timer_queue<time_traits<boost::posix_time::ptime> >::wait_duration_msec(
-    long max_duration) const
-{
-  return impl_.wait_duration_msec(max_duration);
-}
-
-long timer_queue<time_traits<boost::posix_time::ptime> >::wait_duration_usec(
-    long max_duration) const
-{
-  return impl_.wait_duration_usec(max_duration);
-}
-
-void timer_queue<time_traits<boost::posix_time::ptime> >::get_ready_timers(
-    op_queue<operation>& ops)
-{
-  impl_.get_ready_timers(ops);
-}
-
-void timer_queue<time_traits<boost::posix_time::ptime> >::get_all_timers(
-    op_queue<operation>& ops)
-{
-  impl_.get_all_timers(ops);
-}
-
-std::size_t timer_queue<time_traits<boost::posix_time::ptime> >::cancel_timer(
-    per_timer_data& timer, op_queue<operation>& ops, std::size_t max_cancelled)
-{
-  return impl_.cancel_timer(timer, ops, max_cancelled);
-}
-
-void timer_queue<time_traits<boost::posix_time::ptime> >::move_timer(
-    per_timer_data& target, per_timer_data& source)
-{
-  impl_.move_timer(target, source);
-}
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // defined(ASIO_HAS_BOOST_DATE_TIME)
-
-#endif // ASIO_DETAIL_IMPL_TIMER_QUEUE_PTIME_IPP
diff --git a/lib/asio/detail/impl/timer_queue_set.ipp b/lib/asio/detail/impl/timer_queue_set.ipp
deleted file mode 100644
index b516548..0000000
--- a/lib/asio/detail/impl/timer_queue_set.ipp
+++ /dev/null
@@ -1,101 +0,0 @@
-//
-// detail/impl/timer_queue_set.ipp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_IMPL_TIMER_QUEUE_SET_IPP
-#define ASIO_DETAIL_IMPL_TIMER_QUEUE_SET_IPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-#include "asio/detail/timer_queue_set.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-timer_queue_set::timer_queue_set()
-  : first_(0)
-{
-}
-
-void timer_queue_set::insert(timer_queue_base* q)
-{
-  q->next_ = first_;
-  first_ = q;
-}
-
-void timer_queue_set::erase(timer_queue_base* q)
-{
-  if (first_)
-  {
-    if (q == first_)
-    {
-      first_ = q->next_;
-      q->next_ = 0;
-      return;
-    }
-
-    for (timer_queue_base* p = first_; p->next_; p = p->next_)
-    {
-      if (p->next_ == q)
-      {
-        p->next_ = q->next_;
-        q->next_ = 0;
-        return;
-      }
-    }
-  }
-}
-
-bool timer_queue_set::all_empty() const
-{
-  for (timer_queue_base* p = first_; p; p = p->next_)
-    if (!p->empty())
-      return false;
-  return true;
-}
-
-long timer_queue_set::wait_duration_msec(long max_duration) const
-{
-  long min_duration = max_duration;
-  for (timer_queue_base* p = first_; p; p = p->next_)
-    min_duration = p->wait_duration_msec(min_duration);
-  return min_duration;
-}
-
-long timer_queue_set::wait_duration_usec(long max_duration) const
-{
-  long min_duration = max_duration;
-  for (timer_queue_base* p = first_; p; p = p->next_)
-    min_duration = p->wait_duration_usec(min_duration);
-  return min_duration;
-}
-
-void timer_queue_set::get_ready_timers(op_queue<operation>& ops)
-{
-  for (timer_queue_base* p = first_; p; p = p->next_)
-    p->get_ready_timers(ops);
-}
-
-void timer_queue_set::get_all_timers(op_queue<operation>& ops)
-{
-  for (timer_queue_base* p = first_; p; p = p->next_)
-    p->get_all_timers(ops);
-}
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // ASIO_DETAIL_IMPL_TIMER_QUEUE_SET_IPP
diff --git a/lib/asio/detail/impl/win_event.ipp b/lib/asio/detail/impl/win_event.ipp
deleted file mode 100644
index 6f74649..0000000
--- a/lib/asio/detail/impl/win_event.ipp
+++ /dev/null
@@ -1,76 +0,0 @@
-//
-// detail/win_event.ipp
-// ~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_IMPL_WIN_EVENT_IPP
-#define ASIO_DETAIL_IMPL_WIN_EVENT_IPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-
-#if defined(ASIO_WINDOWS)
-
-#include "asio/detail/throw_error.hpp"
-#include "asio/detail/win_event.hpp"
-#include "asio/error.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-win_event::win_event()
-  : state_(0)
-{
-#if defined(ASIO_WINDOWS_APP)
-  events_[0] = ::CreateEventExW(0, 0,
-      CREATE_EVENT_MANUAL_RESET, EVENT_ALL_ACCESS);
-#else // defined(ASIO_WINDOWS_APP)
-  events_[0] = ::CreateEventW(0, true, false, 0);
-#endif // defined(ASIO_WINDOWS_APP)
-  if (!events_[0])
-  {
-    DWORD last_error = ::GetLastError();
-    asio::error_code ec(last_error,
-        asio::error::get_system_category());
-    asio::detail::throw_error(ec, "event");
-  }
-
-#if defined(ASIO_WINDOWS_APP)
-  events_[1] = ::CreateEventExW(0, 0, 0, EVENT_ALL_ACCESS);
-#else // defined(ASIO_WINDOWS_APP)
-  events_[1] = ::CreateEventW(0, false, false, 0);
-#endif // defined(ASIO_WINDOWS_APP)
-  if (!events_[1])
-  {
-    DWORD last_error = ::GetLastError();
-    ::CloseHandle(events_[0]);
-    asio::error_code ec(last_error,
-        asio::error::get_system_category());
-    asio::detail::throw_error(ec, "event");
-  }
-}
-
-win_event::~win_event()
-{
-  ::CloseHandle(events_[0]);
-  ::CloseHandle(events_[1]);
-}
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // defined(ASIO_WINDOWS)
-
-#endif // ASIO_DETAIL_IMPL_WIN_EVENT_IPP
diff --git a/lib/asio/detail/impl/win_iocp_handle_service.ipp b/lib/asio/detail/impl/win_iocp_handle_service.ipp
deleted file mode 100644
index 9cba2b0..0000000
--- a/lib/asio/detail/impl/win_iocp_handle_service.ipp
+++ /dev/null
@@ -1,525 +0,0 @@
-//
-// detail/impl/win_iocp_handle_service.ipp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-// Copyright (c) 2008 Rep Invariant Systems, Inc. (info@repinvariant.com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_IMPL_WIN_IOCP_HANDLE_SERVICE_IPP
-#define ASIO_DETAIL_IMPL_WIN_IOCP_HANDLE_SERVICE_IPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-
-#if defined(ASIO_HAS_IOCP)
-
-#include "asio/detail/win_iocp_handle_service.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-class win_iocp_handle_service::overlapped_wrapper
-  : public OVERLAPPED
-{
-public:
-  explicit overlapped_wrapper(asio::error_code& ec)
-  {
-    Internal = 0;
-    InternalHigh = 0;
-    Offset = 0;
-    OffsetHigh = 0;
-
-    // Create a non-signalled manual-reset event, for GetOverlappedResult.
-    hEvent = ::CreateEventW(0, TRUE, FALSE, 0);
-    if (hEvent)
-    {
-      // As documented in GetQueuedCompletionStatus, setting the low order
-      // bit of this event prevents our synchronous writes from being treated
-      // as completion port events.
-      DWORD_PTR tmp = reinterpret_cast<DWORD_PTR>(hEvent);
-      hEvent = reinterpret_cast<HANDLE>(tmp | 1);
-    }
-    else
-    {
-      DWORD last_error = ::GetLastError();
-      ec = asio::error_code(last_error,
-          asio::error::get_system_category());
-    }
-  }
-
-  ~overlapped_wrapper()
-  {
-    if (hEvent)
-    {
-      ::CloseHandle(hEvent);
-    }
-  }
-};
-
-win_iocp_handle_service::win_iocp_handle_service(
-    asio::io_context& io_context)
-  : service_base<win_iocp_handle_service>(io_context),
-    iocp_service_(asio::use_service<win_iocp_io_context>(io_context)),
-    mutex_(),
-    impl_list_(0)
-{
-}
-
-void win_iocp_handle_service::shutdown()
-{
-  // Close all implementations, causing all operations to complete.
-  asio::detail::mutex::scoped_lock lock(mutex_);
-  implementation_type* impl = impl_list_;
-  while (impl)
-  {
-    close_for_destruction(*impl);
-    impl = impl->next_;
-  }
-}
-
-void win_iocp_handle_service::construct(
-    win_iocp_handle_service::implementation_type& impl)
-{
-  impl.handle_ = INVALID_HANDLE_VALUE;
-  impl.safe_cancellation_thread_id_ = 0;
-
-  // Insert implementation into linked list of all implementations.
-  asio::detail::mutex::scoped_lock lock(mutex_);
-  impl.next_ = impl_list_;
-  impl.prev_ = 0;
-  if (impl_list_)
-    impl_list_->prev_ = &impl;
-  impl_list_ = &impl;
-}
-
-void win_iocp_handle_service::move_construct(
-    win_iocp_handle_service::implementation_type& impl,
-    win_iocp_handle_service::implementation_type& other_impl)
-{
-  impl.handle_ = other_impl.handle_;
-  other_impl.handle_ = INVALID_HANDLE_VALUE;
-
-  impl.safe_cancellation_thread_id_ = other_impl.safe_cancellation_thread_id_;
-  other_impl.safe_cancellation_thread_id_ = 0;
-
-  // Insert implementation into linked list of all implementations.
-  asio::detail::mutex::scoped_lock lock(mutex_);
-  impl.next_ = impl_list_;
-  impl.prev_ = 0;
-  if (impl_list_)
-    impl_list_->prev_ = &impl;
-  impl_list_ = &impl;
-}
-
-void win_iocp_handle_service::move_assign(
-    win_iocp_handle_service::implementation_type& impl,
-    win_iocp_handle_service& other_service,
-    win_iocp_handle_service::implementation_type& other_impl)
-{
-  close_for_destruction(impl);
-
-  if (this != &other_service)
-  {
-    // Remove implementation from linked list of all implementations.
-    asio::detail::mutex::scoped_lock lock(mutex_);
-    if (impl_list_ == &impl)
-      impl_list_ = impl.next_;
-    if (impl.prev_)
-      impl.prev_->next_ = impl.next_;
-    if (impl.next_)
-      impl.next_->prev_= impl.prev_;
-    impl.next_ = 0;
-    impl.prev_ = 0;
-  }
-
-  impl.handle_ = other_impl.handle_;
-  other_impl.handle_ = INVALID_HANDLE_VALUE;
-
-  impl.safe_cancellation_thread_id_ = other_impl.safe_cancellation_thread_id_;
-  other_impl.safe_cancellation_thread_id_ = 0;
-
-  if (this != &other_service)
-  {
-    // Insert implementation into linked list of all implementations.
-    asio::detail::mutex::scoped_lock lock(other_service.mutex_);
-    impl.next_ = other_service.impl_list_;
-    impl.prev_ = 0;
-    if (other_service.impl_list_)
-      other_service.impl_list_->prev_ = &impl;
-    other_service.impl_list_ = &impl;
-  }
-}
-
-void win_iocp_handle_service::destroy(
-    win_iocp_handle_service::implementation_type& impl)
-{
-  close_for_destruction(impl);
-  
-  // Remove implementation from linked list of all implementations.
-  asio::detail::mutex::scoped_lock lock(mutex_);
-  if (impl_list_ == &impl)
-    impl_list_ = impl.next_;
-  if (impl.prev_)
-    impl.prev_->next_ = impl.next_;
-  if (impl.next_)
-    impl.next_->prev_= impl.prev_;
-  impl.next_ = 0;
-  impl.prev_ = 0;
-}
-
-asio::error_code win_iocp_handle_service::assign(
-    win_iocp_handle_service::implementation_type& impl,
-    const native_handle_type& handle, asio::error_code& ec)
-{
-  if (is_open(impl))
-  {
-    ec = asio::error::already_open;
-    return ec;
-  }
-
-  if (iocp_service_.register_handle(handle, ec))
-    return ec;
-
-  impl.handle_ = handle;
-  ec = asio::error_code();
-  return ec;
-}
-
-asio::error_code win_iocp_handle_service::close(
-    win_iocp_handle_service::implementation_type& impl,
-    asio::error_code& ec)
-{
-  if (is_open(impl))
-  {
-    ASIO_HANDLER_OPERATION((iocp_service_.context(), "handle",
-          &impl, reinterpret_cast<uintmax_t>(impl.handle_), "close"));
-
-    if (!::CloseHandle(impl.handle_))
-    {
-      DWORD last_error = ::GetLastError();
-      ec = asio::error_code(last_error,
-          asio::error::get_system_category());
-    }
-    else
-    {
-      ec = asio::error_code();
-    }
-
-    impl.handle_ = INVALID_HANDLE_VALUE;
-    impl.safe_cancellation_thread_id_ = 0;
-  }
-  else
-  {
-    ec = asio::error_code();
-  }
-
-  return ec;
-}
-
-asio::error_code win_iocp_handle_service::cancel(
-    win_iocp_handle_service::implementation_type& impl,
-    asio::error_code& ec)
-{
-  if (!is_open(impl))
-  {
-    ec = asio::error::bad_descriptor;
-    return ec;
-  }
-
-  ASIO_HANDLER_OPERATION((iocp_service_.context(), "handle",
-        &impl, reinterpret_cast<uintmax_t>(impl.handle_), "cancel"));
-
-  if (FARPROC cancel_io_ex_ptr = ::GetProcAddress(
-        ::GetModuleHandleA("KERNEL32"), "CancelIoEx"))
-  {
-    // The version of Windows supports cancellation from any thread.
-    typedef BOOL (WINAPI* cancel_io_ex_t)(HANDLE, LPOVERLAPPED);
-    cancel_io_ex_t cancel_io_ex = (cancel_io_ex_t)cancel_io_ex_ptr;
-    if (!cancel_io_ex(impl.handle_, 0))
-    {
-      DWORD last_error = ::GetLastError();
-      if (last_error == ERROR_NOT_FOUND)
-      {
-        // ERROR_NOT_FOUND means that there were no operations to be
-        // cancelled. We swallow this error to match the behaviour on other
-        // platforms.
-        ec = asio::error_code();
-      }
-      else
-      {
-        ec = asio::error_code(last_error,
-            asio::error::get_system_category());
-      }
-    }
-    else
-    {
-      ec = asio::error_code();
-    }
-  }
-  else if (impl.safe_cancellation_thread_id_ == 0)
-  {
-    // No operations have been started, so there's nothing to cancel.
-    ec = asio::error_code();
-  }
-  else if (impl.safe_cancellation_thread_id_ == ::GetCurrentThreadId())
-  {
-    // Asynchronous operations have been started from the current thread only,
-    // so it is safe to try to cancel them using CancelIo.
-    if (!::CancelIo(impl.handle_))
-    {
-      DWORD last_error = ::GetLastError();
-      ec = asio::error_code(last_error,
-          asio::error::get_system_category());
-    }
-    else
-    {
-      ec = asio::error_code();
-    }
-  }
-  else
-  {
-    // Asynchronous operations have been started from more than one thread,
-    // so cancellation is not safe.
-    ec = asio::error::operation_not_supported;
-  }
-
-  return ec;
-}
-
-size_t win_iocp_handle_service::do_write(
-    win_iocp_handle_service::implementation_type& impl, uint64_t offset,
-    const asio::const_buffer& buffer, asio::error_code& ec)
-{
-  if (!is_open(impl))
-  {
-    ec = asio::error::bad_descriptor;
-    return 0;
-  }
-
-  // A request to write 0 bytes on a handle is a no-op.
-  if (buffer.size() == 0)
-  {
-    ec = asio::error_code();
-    return 0;
-  }
-
-  overlapped_wrapper overlapped(ec);
-  if (ec)
-  {
-    return 0;
-  }
-
-  // Write the data. 
-  overlapped.Offset = offset & 0xFFFFFFFF;
-  overlapped.OffsetHigh = (offset >> 32) & 0xFFFFFFFF;
-  BOOL ok = ::WriteFile(impl.handle_, buffer.data(),
-      static_cast<DWORD>(buffer.size()), 0, &overlapped);
-  if (!ok) 
-  {
-    DWORD last_error = ::GetLastError();
-    if (last_error != ERROR_IO_PENDING)
-    {
-      ec = asio::error_code(last_error,
-          asio::error::get_system_category());
-      return 0;
-    }
-  }
-
-  // Wait for the operation to complete.
-  DWORD bytes_transferred = 0;
-  ok = ::GetOverlappedResult(impl.handle_,
-      &overlapped, &bytes_transferred, TRUE);
-  if (!ok)
-  {
-    DWORD last_error = ::GetLastError();
-    ec = asio::error_code(last_error,
-        asio::error::get_system_category());
-    return 0;
-  }
-
-  ec = asio::error_code();
-  return bytes_transferred;
-}
-
-void win_iocp_handle_service::start_write_op(
-    win_iocp_handle_service::implementation_type& impl, uint64_t offset,
-    const asio::const_buffer& buffer, operation* op)
-{
-  update_cancellation_thread_id(impl);
-  iocp_service_.work_started();
-
-  if (!is_open(impl))
-  {
-    iocp_service_.on_completion(op, asio::error::bad_descriptor);
-  }
-  else if (buffer.size() == 0)
-  {
-    // A request to write 0 bytes on a handle is a no-op.
-    iocp_service_.on_completion(op);
-  }
-  else
-  {
-    DWORD bytes_transferred = 0;
-    op->Offset = offset & 0xFFFFFFFF;
-    op->OffsetHigh = (offset >> 32) & 0xFFFFFFFF;
-    BOOL ok = ::WriteFile(impl.handle_, buffer.data(),
-        static_cast<DWORD>(buffer.size()),
-        &bytes_transferred, op);
-    DWORD last_error = ::GetLastError();
-    if (!ok && last_error != ERROR_IO_PENDING
-        && last_error != ERROR_MORE_DATA)
-    {
-      iocp_service_.on_completion(op, last_error, bytes_transferred);
-    }
-    else
-    {
-      iocp_service_.on_pending(op);
-    }
-  }
-}
-
-size_t win_iocp_handle_service::do_read(
-    win_iocp_handle_service::implementation_type& impl, uint64_t offset,
-    const asio::mutable_buffer& buffer, asio::error_code& ec)
-{
-  if (!is_open(impl))
-  {
-    ec = asio::error::bad_descriptor;
-    return 0;
-  }
-  
-  // A request to read 0 bytes on a stream handle is a no-op.
-  if (buffer.size() == 0)
-  {
-    ec = asio::error_code();
-    return 0;
-  }
-
-  overlapped_wrapper overlapped(ec);
-  if (ec)
-  {
-    return 0;
-  }
-
-  // Read some data.
-  overlapped.Offset = offset & 0xFFFFFFFF;
-  overlapped.OffsetHigh = (offset >> 32) & 0xFFFFFFFF;
-  BOOL ok = ::ReadFile(impl.handle_, buffer.data(),
-      static_cast<DWORD>(buffer.size()), 0, &overlapped);
-  if (!ok) 
-  {
-    DWORD last_error = ::GetLastError();
-    if (last_error != ERROR_IO_PENDING && last_error != ERROR_MORE_DATA)
-    {
-      if (last_error == ERROR_HANDLE_EOF)
-      {
-        ec = asio::error::eof;
-      }
-      else
-      {
-        ec = asio::error_code(last_error,
-            asio::error::get_system_category());
-      }
-      return 0;
-    }
-  }
-
-  // Wait for the operation to complete.
-  DWORD bytes_transferred = 0;
-  ok = ::GetOverlappedResult(impl.handle_,
-      &overlapped, &bytes_transferred, TRUE);
-  if (!ok)
-  {
-    DWORD last_error = ::GetLastError();
-    if (last_error == ERROR_HANDLE_EOF)
-    {
-      ec = asio::error::eof;
-    }
-    else
-    {
-      ec = asio::error_code(last_error,
-          asio::error::get_system_category());
-    }
-    return (last_error == ERROR_MORE_DATA) ? bytes_transferred : 0;
-  }
-
-  ec = asio::error_code();
-  return bytes_transferred;
-}
-
-void win_iocp_handle_service::start_read_op(
-    win_iocp_handle_service::implementation_type& impl, uint64_t offset,
-    const asio::mutable_buffer& buffer, operation* op)
-{
-  update_cancellation_thread_id(impl);
-  iocp_service_.work_started();
-
-  if (!is_open(impl))
-  {
-    iocp_service_.on_completion(op, asio::error::bad_descriptor);
-  }
-  else if (buffer.size() == 0)
-  {
-    // A request to read 0 bytes on a handle is a no-op.
-    iocp_service_.on_completion(op);
-  }
-  else
-  {
-    DWORD bytes_transferred = 0;
-    op->Offset = offset & 0xFFFFFFFF;
-    op->OffsetHigh = (offset >> 32) & 0xFFFFFFFF;
-    BOOL ok = ::ReadFile(impl.handle_, buffer.data(),
-        static_cast<DWORD>(buffer.size()),
-        &bytes_transferred, op);
-    DWORD last_error = ::GetLastError();
-    if (!ok && last_error != ERROR_IO_PENDING
-        && last_error != ERROR_MORE_DATA)
-    {
-      iocp_service_.on_completion(op, last_error, bytes_transferred);
-    }
-    else
-    {
-      iocp_service_.on_pending(op);
-    }
-  }
-}
-
-void win_iocp_handle_service::update_cancellation_thread_id(
-    win_iocp_handle_service::implementation_type& impl)
-{
-  if (impl.safe_cancellation_thread_id_ == 0)
-    impl.safe_cancellation_thread_id_ = ::GetCurrentThreadId();
-  else if (impl.safe_cancellation_thread_id_ != ::GetCurrentThreadId())
-    impl.safe_cancellation_thread_id_ = ~DWORD(0);
-}
-
-void win_iocp_handle_service::close_for_destruction(implementation_type& impl)
-{
-  if (is_open(impl))
-  {
-    ASIO_HANDLER_OPERATION((iocp_service_.context(), "handle",
-          &impl, reinterpret_cast<uintmax_t>(impl.handle_), "close"));
-
-    ::CloseHandle(impl.handle_);
-    impl.handle_ = INVALID_HANDLE_VALUE;
-    impl.safe_cancellation_thread_id_ = 0;
-  }
-}
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // defined(ASIO_HAS_IOCP)
-
-#endif // ASIO_DETAIL_IMPL_WIN_IOCP_HANDLE_SERVICE_IPP
diff --git a/lib/asio/detail/impl/win_iocp_io_context.hpp b/lib/asio/detail/impl/win_iocp_io_context.hpp
deleted file mode 100644
index 44887d7..0000000
--- a/lib/asio/detail/impl/win_iocp_io_context.hpp
+++ /dev/null
@@ -1,103 +0,0 @@
-//
-// detail/impl/win_iocp_io_context.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_IMPL_WIN_IOCP_IO_CONTEXT_HPP
-#define ASIO_DETAIL_IMPL_WIN_IOCP_IO_CONTEXT_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-
-#if defined(ASIO_HAS_IOCP)
-
-#include "asio/detail/completion_handler.hpp"
-#include "asio/detail/fenced_block.hpp"
-#include "asio/detail/handler_alloc_helpers.hpp"
-#include "asio/detail/handler_invoke_helpers.hpp"
-#include "asio/detail/memory.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-template <typename Time_Traits>
-void win_iocp_io_context::add_timer_queue(
-    timer_queue<Time_Traits>& queue)
-{
-  do_add_timer_queue(queue);
-}
-
-template <typename Time_Traits>
-void win_iocp_io_context::remove_timer_queue(
-    timer_queue<Time_Traits>& queue)
-{
-  do_remove_timer_queue(queue);
-}
-
-template <typename Time_Traits>
-void win_iocp_io_context::schedule_timer(timer_queue<Time_Traits>& queue,
-    const typename Time_Traits::time_type& time,
-    typename timer_queue<Time_Traits>::per_timer_data& timer, wait_op* op)
-{
-  // If the service has been shut down we silently discard the timer.
-  if (::InterlockedExchangeAdd(&shutdown_, 0) != 0)
-  {
-    post_immediate_completion(op, false);
-    return;
-  }
-
-  mutex::scoped_lock lock(dispatch_mutex_);
-
-  bool earliest = queue.enqueue_timer(time, timer, op);
-  work_started();
-  if (earliest)
-    update_timeout();
-}
-
-template <typename Time_Traits>
-std::size_t win_iocp_io_context::cancel_timer(timer_queue<Time_Traits>& queue,
-    typename timer_queue<Time_Traits>::per_timer_data& timer,
-    std::size_t max_cancelled)
-{
-  // If the service has been shut down we silently ignore the cancellation.
-  if (::InterlockedExchangeAdd(&shutdown_, 0) != 0)
-    return 0;
-
-  mutex::scoped_lock lock(dispatch_mutex_);
-  op_queue<win_iocp_operation> ops;
-  std::size_t n = queue.cancel_timer(timer, ops, max_cancelled);
-  post_deferred_completions(ops);
-  return n;
-}
-
-template <typename Time_Traits>
-void win_iocp_io_context::move_timer(timer_queue<Time_Traits>& queue,
-    typename timer_queue<Time_Traits>::per_timer_data& to,
-    typename timer_queue<Time_Traits>::per_timer_data& from)
-{
-  asio::detail::mutex::scoped_lock lock(dispatch_mutex_);
-  op_queue<operation> ops;
-  queue.cancel_timer(to, ops);
-  queue.move_timer(to, from);
-  lock.unlock();
-  post_deferred_completions(ops);
-}
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // defined(ASIO_HAS_IOCP)
-
-#endif // ASIO_DETAIL_IMPL_WIN_IOCP_IO_CONTEXT_HPP
diff --git a/lib/asio/detail/impl/win_iocp_io_context.ipp b/lib/asio/detail/impl/win_iocp_io_context.ipp
deleted file mode 100644
index c371b86..0000000
--- a/lib/asio/detail/impl/win_iocp_io_context.ipp
+++ /dev/null
@@ -1,554 +0,0 @@
-//
-// detail/impl/win_iocp_io_context.ipp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_IMPL_WIN_IOCP_IO_CONTEXT_IPP
-#define ASIO_DETAIL_IMPL_WIN_IOCP_IO_CONTEXT_IPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-
-#if defined(ASIO_HAS_IOCP)
-
-#include "asio/error.hpp"
-#include "asio/detail/cstdint.hpp"
-#include "asio/detail/handler_alloc_helpers.hpp"
-#include "asio/detail/handler_invoke_helpers.hpp"
-#include "asio/detail/limits.hpp"
-#include "asio/detail/throw_error.hpp"
-#include "asio/detail/win_iocp_io_context.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-struct win_iocp_io_context::work_finished_on_block_exit
-{
-  ~work_finished_on_block_exit()
-  {
-    io_context_->work_finished();
-  }
-
-  win_iocp_io_context* io_context_;
-};
-
-struct win_iocp_io_context::timer_thread_function
-{
-  void operator()()
-  {
-    while (::InterlockedExchangeAdd(&io_context_->shutdown_, 0) == 0)
-    {
-      if (::WaitForSingleObject(io_context_->waitable_timer_.handle,
-            INFINITE) == WAIT_OBJECT_0)
-      {
-        ::InterlockedExchange(&io_context_->dispatch_required_, 1);
-        ::PostQueuedCompletionStatus(io_context_->iocp_.handle,
-            0, wake_for_dispatch, 0);
-      }
-    }
-  }
-
-  win_iocp_io_context* io_context_;
-};
-
-win_iocp_io_context::win_iocp_io_context(
-    asio::execution_context& ctx, int concurrency_hint)
-  : execution_context_service_base<win_iocp_io_context>(ctx),
-    iocp_(),
-    outstanding_work_(0),
-    stopped_(0),
-    stop_event_posted_(0),
-    shutdown_(0),
-    gqcs_timeout_(get_gqcs_timeout()),
-    dispatch_required_(0),
-    concurrency_hint_(concurrency_hint)
-{
-  ASIO_HANDLER_TRACKING_INIT;
-
-  iocp_.handle = ::CreateIoCompletionPort(INVALID_HANDLE_VALUE, 0, 0,
-      static_cast<DWORD>(concurrency_hint >= 0 ? concurrency_hint : DWORD(~0)));
-  if (!iocp_.handle)
-  {
-    DWORD last_error = ::GetLastError();
-    asio::error_code ec(last_error,
-        asio::error::get_system_category());
-    asio::detail::throw_error(ec, "iocp");
-  }
-}
-
-void win_iocp_io_context::shutdown()
-{
-  ::InterlockedExchange(&shutdown_, 1);
-
-  if (timer_thread_.get())
-  {
-    LARGE_INTEGER timeout;
-    timeout.QuadPart = 1;
-    ::SetWaitableTimer(waitable_timer_.handle, &timeout, 1, 0, 0, FALSE);
-  }
-
-  while (::InterlockedExchangeAdd(&outstanding_work_, 0) > 0)
-  {
-    op_queue<win_iocp_operation> ops;
-    timer_queues_.get_all_timers(ops);
-    ops.push(completed_ops_);
-    if (!ops.empty())
-    {
-      while (win_iocp_operation* op = ops.front())
-      {
-        ops.pop();
-        ::InterlockedDecrement(&outstanding_work_);
-        op->destroy();
-      }
-    }
-    else
-    {
-      DWORD bytes_transferred = 0;
-      dword_ptr_t completion_key = 0;
-      LPOVERLAPPED overlapped = 0;
-      ::GetQueuedCompletionStatus(iocp_.handle, &bytes_transferred,
-          &completion_key, &overlapped, gqcs_timeout_);
-      if (overlapped)
-      {
-        ::InterlockedDecrement(&outstanding_work_);
-        static_cast<win_iocp_operation*>(overlapped)->destroy();
-      }
-    }
-  }
-
-  if (timer_thread_.get())
-    timer_thread_->join();
-}
-
-asio::error_code win_iocp_io_context::register_handle(
-    HANDLE handle, asio::error_code& ec)
-{
-  if (::CreateIoCompletionPort(handle, iocp_.handle, 0, 0) == 0)
-  {
-    DWORD last_error = ::GetLastError();
-    ec = asio::error_code(last_error,
-        asio::error::get_system_category());
-  }
-  else
-  {
-    ec = asio::error_code();
-  }
-  return ec;
-}
-
-size_t win_iocp_io_context::run(asio::error_code& ec)
-{
-  if (::InterlockedExchangeAdd(&outstanding_work_, 0) == 0)
-  {
-    stop();
-    ec = asio::error_code();
-    return 0;
-  }
-
-  win_iocp_thread_info this_thread;
-  thread_call_stack::context ctx(this, this_thread);
-
-  size_t n = 0;
-  while (do_one(INFINITE, ec))
-    if (n != (std::numeric_limits<size_t>::max)())
-      ++n;
-  return n;
-}
-
-size_t win_iocp_io_context::run_one(asio::error_code& ec)
-{
-  if (::InterlockedExchangeAdd(&outstanding_work_, 0) == 0)
-  {
-    stop();
-    ec = asio::error_code();
-    return 0;
-  }
-
-  win_iocp_thread_info this_thread;
-  thread_call_stack::context ctx(this, this_thread);
-
-  return do_one(INFINITE, ec);
-}
-
-size_t win_iocp_io_context::wait_one(long usec, asio::error_code& ec)
-{
-  if (::InterlockedExchangeAdd(&outstanding_work_, 0) == 0)
-  {
-    stop();
-    ec = asio::error_code();
-    return 0;
-  }
-
-  win_iocp_thread_info this_thread;
-  thread_call_stack::context ctx(this, this_thread);
-
-  return do_one(usec < 0 ? INFINITE : ((usec - 1) / 1000 + 1), ec);
-}
-
-size_t win_iocp_io_context::poll(asio::error_code& ec)
-{
-  if (::InterlockedExchangeAdd(&outstanding_work_, 0) == 0)
-  {
-    stop();
-    ec = asio::error_code();
-    return 0;
-  }
-
-  win_iocp_thread_info this_thread;
-  thread_call_stack::context ctx(this, this_thread);
-
-  size_t n = 0;
-  while (do_one(0, ec))
-    if (n != (std::numeric_limits<size_t>::max)())
-      ++n;
-  return n;
-}
-
-size_t win_iocp_io_context::poll_one(asio::error_code& ec)
-{
-  if (::InterlockedExchangeAdd(&outstanding_work_, 0) == 0)
-  {
-    stop();
-    ec = asio::error_code();
-    return 0;
-  }
-
-  win_iocp_thread_info this_thread;
-  thread_call_stack::context ctx(this, this_thread);
-
-  return do_one(0, ec);
-}
-
-void win_iocp_io_context::stop()
-{
-  if (::InterlockedExchange(&stopped_, 1) == 0)
-  {
-    if (::InterlockedExchange(&stop_event_posted_, 1) == 0)
-    {
-      if (!::PostQueuedCompletionStatus(iocp_.handle, 0, 0, 0))
-      {
-        DWORD last_error = ::GetLastError();
-        asio::error_code ec(last_error,
-            asio::error::get_system_category());
-        asio::detail::throw_error(ec, "pqcs");
-      }
-    }
-  }
-}
-
-void win_iocp_io_context::post_deferred_completion(win_iocp_operation* op)
-{
-  // Flag the operation as ready.
-  op->ready_ = 1;
-
-  // Enqueue the operation on the I/O completion port.
-  if (!::PostQueuedCompletionStatus(iocp_.handle, 0, 0, op))
-  {
-    // Out of resources. Put on completed queue instead.
-    mutex::scoped_lock lock(dispatch_mutex_);
-    completed_ops_.push(op);
-    ::InterlockedExchange(&dispatch_required_, 1);
-  }
-}
-
-void win_iocp_io_context::post_deferred_completions(
-    op_queue<win_iocp_operation>& ops)
-{
-  while (win_iocp_operation* op = ops.front())
-  {
-    ops.pop();
-
-    // Flag the operation as ready.
-    op->ready_ = 1;
-
-    // Enqueue the operation on the I/O completion port.
-    if (!::PostQueuedCompletionStatus(iocp_.handle, 0, 0, op))
-    {
-      // Out of resources. Put on completed queue instead.
-      mutex::scoped_lock lock(dispatch_mutex_);
-      completed_ops_.push(op);
-      completed_ops_.push(ops);
-      ::InterlockedExchange(&dispatch_required_, 1);
-    }
-  }
-}
-
-void win_iocp_io_context::abandon_operations(
-    op_queue<win_iocp_operation>& ops)
-{
-  while (win_iocp_operation* op = ops.front())
-  {
-    ops.pop();
-    ::InterlockedDecrement(&outstanding_work_);
-    op->destroy();
-  }
-}
-
-void win_iocp_io_context::on_pending(win_iocp_operation* op)
-{
-  if (::InterlockedCompareExchange(&op->ready_, 1, 0) == 1)
-  {
-    // Enqueue the operation on the I/O completion port.
-    if (!::PostQueuedCompletionStatus(iocp_.handle,
-          0, overlapped_contains_result, op))
-    {
-      // Out of resources. Put on completed queue instead.
-      mutex::scoped_lock lock(dispatch_mutex_);
-      completed_ops_.push(op);
-      ::InterlockedExchange(&dispatch_required_, 1);
-    }
-  }
-}
-
-void win_iocp_io_context::on_completion(win_iocp_operation* op,
-    DWORD last_error, DWORD bytes_transferred)
-{
-  // Flag that the operation is ready for invocation.
-  op->ready_ = 1;
-
-  // Store results in the OVERLAPPED structure.
-  op->Internal = reinterpret_cast<ulong_ptr_t>(
-      &asio::error::get_system_category());
-  op->Offset = last_error;
-  op->OffsetHigh = bytes_transferred;
-
-  // Enqueue the operation on the I/O completion port.
-  if (!::PostQueuedCompletionStatus(iocp_.handle,
-        0, overlapped_contains_result, op))
-  {
-    // Out of resources. Put on completed queue instead.
-    mutex::scoped_lock lock(dispatch_mutex_);
-    completed_ops_.push(op);
-    ::InterlockedExchange(&dispatch_required_, 1);
-  }
-}
-
-void win_iocp_io_context::on_completion(win_iocp_operation* op,
-    const asio::error_code& ec, DWORD bytes_transferred)
-{
-  // Flag that the operation is ready for invocation.
-  op->ready_ = 1;
-
-  // Store results in the OVERLAPPED structure.
-  op->Internal = reinterpret_cast<ulong_ptr_t>(&ec.category());
-  op->Offset = ec.value();
-  op->OffsetHigh = bytes_transferred;
-
-  // Enqueue the operation on the I/O completion port.
-  if (!::PostQueuedCompletionStatus(iocp_.handle,
-        0, overlapped_contains_result, op))
-  {
-    // Out of resources. Put on completed queue instead.
-    mutex::scoped_lock lock(dispatch_mutex_);
-    completed_ops_.push(op);
-    ::InterlockedExchange(&dispatch_required_, 1);
-  }
-}
-
-size_t win_iocp_io_context::do_one(DWORD msec, asio::error_code& ec)
-{
-  for (;;)
-  {
-    // Try to acquire responsibility for dispatching timers and completed ops.
-    if (::InterlockedCompareExchange(&dispatch_required_, 0, 1) == 1)
-    {
-      mutex::scoped_lock lock(dispatch_mutex_);
-
-      // Dispatch pending timers and operations.
-      op_queue<win_iocp_operation> ops;
-      ops.push(completed_ops_);
-      timer_queues_.get_ready_timers(ops);
-      post_deferred_completions(ops);
-      update_timeout();
-    }
-
-    // Get the next operation from the queue.
-    DWORD bytes_transferred = 0;
-    dword_ptr_t completion_key = 0;
-    LPOVERLAPPED overlapped = 0;
-    ::SetLastError(0);
-    BOOL ok = ::GetQueuedCompletionStatus(iocp_.handle,
-        &bytes_transferred, &completion_key, &overlapped,
-        msec < gqcs_timeout_ ? msec : gqcs_timeout_);
-    DWORD last_error = ::GetLastError();
-
-    if (overlapped)
-    {
-      win_iocp_operation* op = static_cast<win_iocp_operation*>(overlapped);
-      asio::error_code result_ec(last_error,
-          asio::error::get_system_category());
-
-      // We may have been passed the last_error and bytes_transferred in the
-      // OVERLAPPED structure itself.
-      if (completion_key == overlapped_contains_result)
-      {
-        result_ec = asio::error_code(static_cast<int>(op->Offset),
-            *reinterpret_cast<asio::error_category*>(op->Internal));
-        bytes_transferred = op->OffsetHigh;
-      }
-
-      // Otherwise ensure any result has been saved into the OVERLAPPED
-      // structure.
-      else
-      {
-        op->Internal = reinterpret_cast<ulong_ptr_t>(&result_ec.category());
-        op->Offset = result_ec.value();
-        op->OffsetHigh = bytes_transferred;
-      }
-
-      // Dispatch the operation only if ready. The operation may not be ready
-      // if the initiating function (e.g. a call to WSARecv) has not yet
-      // returned. This is because the initiating function still wants access
-      // to the operation's OVERLAPPED structure.
-      if (::InterlockedCompareExchange(&op->ready_, 1, 0) == 1)
-      {
-        // Ensure the count of outstanding work is decremented on block exit.
-        work_finished_on_block_exit on_exit = { this };
-        (void)on_exit;
-
-        op->complete(this, result_ec, bytes_transferred);
-        ec = asio::error_code();
-        return 1;
-      }
-    }
-    else if (!ok)
-    {
-      if (last_error != WAIT_TIMEOUT)
-      {
-        ec = asio::error_code(last_error,
-            asio::error::get_system_category());
-        return 0;
-      }
-
-      // If we're waiting indefinitely we need to keep going until we get a
-      // real handler.
-      if (msec == INFINITE)
-        continue;
-
-      ec = asio::error_code();
-      return 0;
-    }
-    else if (completion_key == wake_for_dispatch)
-    {
-      // We have been woken up to try to acquire responsibility for dispatching
-      // timers and completed operations.
-    }
-    else
-    {
-      // Indicate that there is no longer an in-flight stop event.
-      ::InterlockedExchange(&stop_event_posted_, 0);
-
-      // The stopped_ flag is always checked to ensure that any leftover
-      // stop events from a previous run invocation are ignored.
-      if (::InterlockedExchangeAdd(&stopped_, 0) != 0)
-      {
-        // Wake up next thread that is blocked on GetQueuedCompletionStatus.
-        if (::InterlockedExchange(&stop_event_posted_, 1) == 0)
-        {
-          if (!::PostQueuedCompletionStatus(iocp_.handle, 0, 0, 0))
-          {
-            last_error = ::GetLastError();
-            ec = asio::error_code(last_error,
-                asio::error::get_system_category());
-            return 0;
-          }
-        }
-
-        ec = asio::error_code();
-        return 0;
-      }
-    }
-  }
-}
-
-DWORD win_iocp_io_context::get_gqcs_timeout()
-{
-  OSVERSIONINFOEX osvi;
-  ZeroMemory(&osvi, sizeof(osvi));
-  osvi.dwOSVersionInfoSize = sizeof(osvi);
-  osvi.dwMajorVersion = 6ul;
-
-  const uint64_t condition_mask = ::VerSetConditionMask(
-      0, VER_MAJORVERSION, VER_GREATER_EQUAL);
-
-  if (!!::VerifyVersionInfo(&osvi, VER_MAJORVERSION, condition_mask))
-    return INFINITE;
-
-  return default_gqcs_timeout;
-}
-
-void win_iocp_io_context::do_add_timer_queue(timer_queue_base& queue)
-{
-  mutex::scoped_lock lock(dispatch_mutex_);
-
-  timer_queues_.insert(&queue);
-
-  if (!waitable_timer_.handle)
-  {
-    waitable_timer_.handle = ::CreateWaitableTimer(0, FALSE, 0);
-    if (waitable_timer_.handle == 0)
-    {
-      DWORD last_error = ::GetLastError();
-      asio::error_code ec(last_error,
-          asio::error::get_system_category());
-      asio::detail::throw_error(ec, "timer");
-    }
-
-    LARGE_INTEGER timeout;
-    timeout.QuadPart = -max_timeout_usec;
-    timeout.QuadPart *= 10;
-    ::SetWaitableTimer(waitable_timer_.handle,
-        &timeout, max_timeout_msec, 0, 0, FALSE);
-  }
-
-  if (!timer_thread_.get())
-  {
-    timer_thread_function thread_function = { this };
-    timer_thread_.reset(new thread(thread_function, 65536));
-  }
-}
-
-void win_iocp_io_context::do_remove_timer_queue(timer_queue_base& queue)
-{
-  mutex::scoped_lock lock(dispatch_mutex_);
-
-  timer_queues_.erase(&queue);
-}
-
-void win_iocp_io_context::update_timeout()
-{
-  if (timer_thread_.get())
-  {
-    // There's no point updating the waitable timer if the new timeout period
-    // exceeds the maximum timeout. In that case, we might as well wait for the
-    // existing period of the timer to expire.
-    long timeout_usec = timer_queues_.wait_duration_usec(max_timeout_usec);
-    if (timeout_usec < max_timeout_usec)
-    {
-      LARGE_INTEGER timeout;
-      timeout.QuadPart = -timeout_usec;
-      timeout.QuadPart *= 10;
-      ::SetWaitableTimer(waitable_timer_.handle,
-          &timeout, max_timeout_msec, 0, 0, FALSE);
-    }
-  }
-}
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // defined(ASIO_HAS_IOCP)
-
-#endif // ASIO_DETAIL_IMPL_WIN_IOCP_IO_CONTEXT_IPP
diff --git a/lib/asio/detail/impl/win_iocp_serial_port_service.ipp b/lib/asio/detail/impl/win_iocp_serial_port_service.ipp
deleted file mode 100644
index 4a9b8cd..0000000
--- a/lib/asio/detail/impl/win_iocp_serial_port_service.ipp
+++ /dev/null
@@ -1,181 +0,0 @@
-//
-// detail/impl/win_iocp_serial_port_service.ipp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-// Copyright (c) 2008 Rep Invariant Systems, Inc. (info@repinvariant.com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_IMPL_WIN_IOCP_SERIAL_PORT_SERVICE_IPP
-#define ASIO_DETAIL_IMPL_WIN_IOCP_SERIAL_PORT_SERVICE_IPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-
-#if defined(ASIO_HAS_IOCP) && defined(ASIO_HAS_SERIAL_PORT)
-
-#include <cstring>
-#include "asio/detail/win_iocp_serial_port_service.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-win_iocp_serial_port_service::win_iocp_serial_port_service(
-    asio::io_context& io_context)
-  : service_base<win_iocp_serial_port_service>(io_context),
-    handle_service_(io_context)
-{
-}
-
-void win_iocp_serial_port_service::shutdown()
-{
-}
-
-asio::error_code win_iocp_serial_port_service::open(
-    win_iocp_serial_port_service::implementation_type& impl,
-    const std::string& device, asio::error_code& ec)
-{
-  if (is_open(impl))
-  {
-    ec = asio::error::already_open;
-    return ec;
-  }
-
-  // For convenience, add a leading \\.\ sequence if not already present.
-  std::string name = (device[0] == '\\') ? device : "\\\\.\\" + device;
-
-  // Open a handle to the serial port.
-  ::HANDLE handle = ::CreateFileA(name.c_str(),
-      GENERIC_READ | GENERIC_WRITE, 0, 0,
-      OPEN_EXISTING, FILE_FLAG_OVERLAPPED, 0);
-  if (handle == INVALID_HANDLE_VALUE)
-  {
-    DWORD last_error = ::GetLastError();
-    ec = asio::error_code(last_error,
-        asio::error::get_system_category());
-    return ec;
-  }
-
-  // Determine the initial serial port parameters.
-  using namespace std; // For memset.
-  ::DCB dcb;
-  memset(&dcb, 0, sizeof(DCB));
-  dcb.DCBlength = sizeof(DCB);
-  if (!::GetCommState(handle, &dcb))
-  {
-    DWORD last_error = ::GetLastError();
-    ::CloseHandle(handle);
-    ec = asio::error_code(last_error,
-        asio::error::get_system_category());
-    return ec;
-  }
-
-  // Set some default serial port parameters. This implementation does not
-  // support changing these, so they might as well be in a known state.
-  dcb.fBinary = TRUE; // Win32 only supports binary mode.
-  dcb.fDsrSensitivity = FALSE;
-  dcb.fNull = FALSE; // Do not ignore NULL characters.
-  dcb.fAbortOnError = FALSE; // Ignore serial framing errors.
-  if (!::SetCommState(handle, &dcb))
-  {
-    DWORD last_error = ::GetLastError();
-    ::CloseHandle(handle);
-    ec = asio::error_code(last_error,
-        asio::error::get_system_category());
-    return ec;
-  }
-
-  // Set up timeouts so that the serial port will behave similarly to a
-  // network socket. Reads wait for at least one byte, then return with
-  // whatever they have. Writes return once everything is out the door.
-  ::COMMTIMEOUTS timeouts;
-  timeouts.ReadIntervalTimeout = 1;
-  timeouts.ReadTotalTimeoutMultiplier = 0;
-  timeouts.ReadTotalTimeoutConstant = 0;
-  timeouts.WriteTotalTimeoutMultiplier = 0;
-  timeouts.WriteTotalTimeoutConstant = 0;
-  if (!::SetCommTimeouts(handle, &timeouts))
-  {
-    DWORD last_error = ::GetLastError();
-    ::CloseHandle(handle);
-    ec = asio::error_code(last_error,
-        asio::error::get_system_category());
-    return ec;
-  }
-
-  // We're done. Take ownership of the serial port handle.
-  if (handle_service_.assign(impl, handle, ec))
-    ::CloseHandle(handle);
-  return ec;
-}
-
-asio::error_code win_iocp_serial_port_service::do_set_option(
-    win_iocp_serial_port_service::implementation_type& impl,
-    win_iocp_serial_port_service::store_function_type store,
-    const void* option, asio::error_code& ec)
-{
-  using namespace std; // For memcpy.
-
-  ::DCB dcb;
-  memset(&dcb, 0, sizeof(DCB));
-  dcb.DCBlength = sizeof(DCB);
-  if (!::GetCommState(handle_service_.native_handle(impl), &dcb))
-  {
-    DWORD last_error = ::GetLastError();
-    ec = asio::error_code(last_error,
-        asio::error::get_system_category());
-    return ec;
-  }
-
-  if (store(option, dcb, ec))
-    return ec;
-
-  if (!::SetCommState(handle_service_.native_handle(impl), &dcb))
-  {
-    DWORD last_error = ::GetLastError();
-    ec = asio::error_code(last_error,
-        asio::error::get_system_category());
-    return ec;
-  }
-
-  ec = asio::error_code();
-  return ec;
-}
-
-asio::error_code win_iocp_serial_port_service::do_get_option(
-    const win_iocp_serial_port_service::implementation_type& impl,
-    win_iocp_serial_port_service::load_function_type load,
-    void* option, asio::error_code& ec) const
-{
-  using namespace std; // For memset.
-
-  ::DCB dcb;
-  memset(&dcb, 0, sizeof(DCB));
-  dcb.DCBlength = sizeof(DCB);
-  if (!::GetCommState(handle_service_.native_handle(impl), &dcb))
-  {
-    DWORD last_error = ::GetLastError();
-    ec = asio::error_code(last_error,
-        asio::error::get_system_category());
-    return ec;
-  }
-
-  return load(option, dcb, ec);
-}
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // defined(ASIO_HAS_IOCP) && defined(ASIO_HAS_SERIAL_PORT)
-
-#endif // ASIO_DETAIL_IMPL_WIN_IOCP_SERIAL_PORT_SERVICE_IPP
diff --git a/lib/asio/detail/impl/win_iocp_socket_service_base.ipp b/lib/asio/detail/impl/win_iocp_socket_service_base.ipp
deleted file mode 100644
index 6c478cd..0000000
--- a/lib/asio/detail/impl/win_iocp_socket_service_base.ipp
+++ /dev/null
@@ -1,799 +0,0 @@
-//
-// detail/impl/win_iocp_socket_service_base.ipp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_IMPL_WIN_IOCP_SOCKET_SERVICE_BASE_IPP
-#define ASIO_DETAIL_IMPL_WIN_IOCP_SOCKET_SERVICE_BASE_IPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-
-#if defined(ASIO_HAS_IOCP)
-
-#include "asio/detail/win_iocp_socket_service_base.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-win_iocp_socket_service_base::win_iocp_socket_service_base(
-    asio::io_context& io_context)
-  : io_context_(io_context),
-    iocp_service_(use_service<win_iocp_io_context>(io_context)),
-    reactor_(0),
-    connect_ex_(0),
-    nt_set_info_(0),
-    mutex_(),
-    impl_list_(0)
-{
-}
-
-void win_iocp_socket_service_base::base_shutdown()
-{
-  // Close all implementations, causing all operations to complete.
-  asio::detail::mutex::scoped_lock lock(mutex_);
-  base_implementation_type* impl = impl_list_;
-  while (impl)
-  {
-    close_for_destruction(*impl);
-    impl = impl->next_;
-  }
-}
-
-void win_iocp_socket_service_base::construct(
-    win_iocp_socket_service_base::base_implementation_type& impl)
-{
-  impl.socket_ = invalid_socket;
-  impl.state_ = 0;
-  impl.cancel_token_.reset();
-#if defined(ASIO_ENABLE_CANCELIO)
-  impl.safe_cancellation_thread_id_ = 0;
-#endif // defined(ASIO_ENABLE_CANCELIO)
-
-  // Insert implementation into linked list of all implementations.
-  asio::detail::mutex::scoped_lock lock(mutex_);
-  impl.next_ = impl_list_;
-  impl.prev_ = 0;
-  if (impl_list_)
-    impl_list_->prev_ = &impl;
-  impl_list_ = &impl;
-}
-
-void win_iocp_socket_service_base::base_move_construct(
-    win_iocp_socket_service_base::base_implementation_type& impl,
-    win_iocp_socket_service_base::base_implementation_type& other_impl)
-{
-  impl.socket_ = other_impl.socket_;
-  other_impl.socket_ = invalid_socket;
-
-  impl.state_ = other_impl.state_;
-  other_impl.state_ = 0;
-
-  impl.cancel_token_ = other_impl.cancel_token_;
-  other_impl.cancel_token_.reset();
-
-#if defined(ASIO_ENABLE_CANCELIO)
-  impl.safe_cancellation_thread_id_ = other_impl.safe_cancellation_thread_id_;
-  other_impl.safe_cancellation_thread_id_ = 0;
-#endif // defined(ASIO_ENABLE_CANCELIO)
-
-  // Insert implementation into linked list of all implementations.
-  asio::detail::mutex::scoped_lock lock(mutex_);
-  impl.next_ = impl_list_;
-  impl.prev_ = 0;
-  if (impl_list_)
-    impl_list_->prev_ = &impl;
-  impl_list_ = &impl;
-}
-
-void win_iocp_socket_service_base::base_move_assign(
-    win_iocp_socket_service_base::base_implementation_type& impl,
-    win_iocp_socket_service_base& other_service,
-    win_iocp_socket_service_base::base_implementation_type& other_impl)
-{
-  close_for_destruction(impl);
-
-  if (this != &other_service)
-  {
-    // Remove implementation from linked list of all implementations.
-    asio::detail::mutex::scoped_lock lock(mutex_);
-    if (impl_list_ == &impl)
-      impl_list_ = impl.next_;
-    if (impl.prev_)
-      impl.prev_->next_ = impl.next_;
-    if (impl.next_)
-      impl.next_->prev_= impl.prev_;
-    impl.next_ = 0;
-    impl.prev_ = 0;
-  }
-
-  impl.socket_ = other_impl.socket_;
-  other_impl.socket_ = invalid_socket;
-
-  impl.state_ = other_impl.state_;
-  other_impl.state_ = 0;
-
-  impl.cancel_token_ = other_impl.cancel_token_;
-  other_impl.cancel_token_.reset();
-
-#if defined(ASIO_ENABLE_CANCELIO)
-  impl.safe_cancellation_thread_id_ = other_impl.safe_cancellation_thread_id_;
-  other_impl.safe_cancellation_thread_id_ = 0;
-#endif // defined(ASIO_ENABLE_CANCELIO)
-
-  if (this != &other_service)
-  {
-    // Insert implementation into linked list of all implementations.
-    asio::detail::mutex::scoped_lock lock(other_service.mutex_);
-    impl.next_ = other_service.impl_list_;
-    impl.prev_ = 0;
-    if (other_service.impl_list_)
-      other_service.impl_list_->prev_ = &impl;
-    other_service.impl_list_ = &impl;
-  }
-}
-
-void win_iocp_socket_service_base::destroy(
-    win_iocp_socket_service_base::base_implementation_type& impl)
-{
-  close_for_destruction(impl);
-
-  // Remove implementation from linked list of all implementations.
-  asio::detail::mutex::scoped_lock lock(mutex_);
-  if (impl_list_ == &impl)
-    impl_list_ = impl.next_;
-  if (impl.prev_)
-    impl.prev_->next_ = impl.next_;
-  if (impl.next_)
-    impl.next_->prev_= impl.prev_;
-  impl.next_ = 0;
-  impl.prev_ = 0;
-}
-
-asio::error_code win_iocp_socket_service_base::close(
-    win_iocp_socket_service_base::base_implementation_type& impl,
-    asio::error_code& ec)
-{
-  if (is_open(impl))
-  {
-    ASIO_HANDLER_OPERATION((iocp_service_.context(),
-          "socket", &impl, impl.socket_, "close"));
-
-    // Check if the reactor was created, in which case we need to close the
-    // socket on the reactor as well to cancel any operations that might be
-    // running there.
-    select_reactor* r = static_cast<select_reactor*>(
-          interlocked_compare_exchange_pointer(
-            reinterpret_cast<void**>(&reactor_), 0, 0));
-    if (r)
-      r->deregister_descriptor(impl.socket_, impl.reactor_data_, true);
-
-    socket_ops::close(impl.socket_, impl.state_, false, ec);
-
-    if (r)
-      r->cleanup_descriptor_data(impl.reactor_data_);
-  }
-  else
-  {
-    ec = asio::error_code();
-  }
-
-  impl.socket_ = invalid_socket;
-  impl.state_ = 0;
-  impl.cancel_token_.reset();
-#if defined(ASIO_ENABLE_CANCELIO)
-  impl.safe_cancellation_thread_id_ = 0;
-#endif // defined(ASIO_ENABLE_CANCELIO)
-
-  return ec;
-}
-
-socket_type win_iocp_socket_service_base::release(
-    win_iocp_socket_service_base::base_implementation_type& impl,
-    asio::error_code& ec)
-{
-  if (!is_open(impl))
-    return invalid_socket;
-
-  cancel(impl, ec);
-  if (ec)
-    return invalid_socket;
-
-  nt_set_info_fn fn = get_nt_set_info();
-  if (fn == 0)
-  {
-    ec = asio::error::operation_not_supported;
-    return invalid_socket;
-  }
-
-  HANDLE sock_as_handle = reinterpret_cast<HANDLE>(impl.socket_);
-  ULONG_PTR iosb[2] = { 0, 0 };
-  void* info[2] = { 0, 0 };
-  if (fn(sock_as_handle, iosb, &info, sizeof(info),
-        61 /* FileReplaceCompletionInformation */))
-  {
-    ec = asio::error::operation_not_supported;
-    return invalid_socket;
-  }
-
-  socket_type tmp = impl.socket_;
-  impl.socket_ = invalid_socket;
-  return tmp;
-}
-
-asio::error_code win_iocp_socket_service_base::cancel(
-    win_iocp_socket_service_base::base_implementation_type& impl,
-    asio::error_code& ec)
-{
-  if (!is_open(impl))
-  {
-    ec = asio::error::bad_descriptor;
-    return ec;
-  }
-
-  ASIO_HANDLER_OPERATION((iocp_service_.context(),
-        "socket", &impl, impl.socket_, "cancel"));
-
-  if (FARPROC cancel_io_ex_ptr = ::GetProcAddress(
-        ::GetModuleHandleA("KERNEL32"), "CancelIoEx"))
-  {
-    // The version of Windows supports cancellation from any thread.
-    typedef BOOL (WINAPI* cancel_io_ex_t)(HANDLE, LPOVERLAPPED);
-    cancel_io_ex_t cancel_io_ex = (cancel_io_ex_t)cancel_io_ex_ptr;
-    socket_type sock = impl.socket_;
-    HANDLE sock_as_handle = reinterpret_cast<HANDLE>(sock);
-    if (!cancel_io_ex(sock_as_handle, 0))
-    {
-      DWORD last_error = ::GetLastError();
-      if (last_error == ERROR_NOT_FOUND)
-      {
-        // ERROR_NOT_FOUND means that there were no operations to be
-        // cancelled. We swallow this error to match the behaviour on other
-        // platforms.
-        ec = asio::error_code();
-      }
-      else
-      {
-        ec = asio::error_code(last_error,
-            asio::error::get_system_category());
-      }
-    }
-    else
-    {
-      ec = asio::error_code();
-    }
-  }
-#if defined(ASIO_ENABLE_CANCELIO)
-  else if (impl.safe_cancellation_thread_id_ == 0)
-  {
-    // No operations have been started, so there's nothing to cancel.
-    ec = asio::error_code();
-  }
-  else if (impl.safe_cancellation_thread_id_ == ::GetCurrentThreadId())
-  {
-    // Asynchronous operations have been started from the current thread only,
-    // so it is safe to try to cancel them using CancelIo.
-    socket_type sock = impl.socket_;
-    HANDLE sock_as_handle = reinterpret_cast<HANDLE>(sock);
-    if (!::CancelIo(sock_as_handle))
-    {
-      DWORD last_error = ::GetLastError();
-      ec = asio::error_code(last_error,
-          asio::error::get_system_category());
-    }
-    else
-    {
-      ec = asio::error_code();
-    }
-  }
-  else
-  {
-    // Asynchronous operations have been started from more than one thread,
-    // so cancellation is not safe.
-    ec = asio::error::operation_not_supported;
-  }
-#else // defined(ASIO_ENABLE_CANCELIO)
-  else
-  {
-    // Cancellation is not supported as CancelIo may not be used.
-    ec = asio::error::operation_not_supported;
-  }
-#endif // defined(ASIO_ENABLE_CANCELIO)
-
-  // Cancel any operations started via the reactor.
-  if (!ec)
-  {
-    select_reactor* r = static_cast<select_reactor*>(
-          interlocked_compare_exchange_pointer(
-            reinterpret_cast<void**>(&reactor_), 0, 0));
-    if (r)
-      r->cancel_ops(impl.socket_, impl.reactor_data_);
-  }
-
-  return ec;
-}
-
-asio::error_code win_iocp_socket_service_base::do_open(
-    win_iocp_socket_service_base::base_implementation_type& impl,
-    int family, int type, int protocol, asio::error_code& ec)
-{
-  if (is_open(impl))
-  {
-    ec = asio::error::already_open;
-    return ec;
-  }
-
-  socket_holder sock(socket_ops::socket(family, type, protocol, ec));
-  if (sock.get() == invalid_socket)
-    return ec;
-
-  HANDLE sock_as_handle = reinterpret_cast<HANDLE>(sock.get());
-  if (iocp_service_.register_handle(sock_as_handle, ec))
-    return ec;
-
-  impl.socket_ = sock.release();
-  switch (type)
-  {
-  case SOCK_STREAM: impl.state_ = socket_ops::stream_oriented; break;
-  case SOCK_DGRAM: impl.state_ = socket_ops::datagram_oriented; break;
-  default: impl.state_ = 0; break;
-  }
-  impl.cancel_token_.reset(static_cast<void*>(0), socket_ops::noop_deleter());
-  ec = asio::error_code();
-  return ec;
-}
-
-asio::error_code win_iocp_socket_service_base::do_assign(
-    win_iocp_socket_service_base::base_implementation_type& impl,
-    int type, socket_type native_socket, asio::error_code& ec)
-{
-  if (is_open(impl))
-  {
-    ec = asio::error::already_open;
-    return ec;
-  }
-
-  HANDLE sock_as_handle = reinterpret_cast<HANDLE>(native_socket);
-  if (iocp_service_.register_handle(sock_as_handle, ec))
-    return ec;
-
-  impl.socket_ = native_socket;
-  switch (type)
-  {
-  case SOCK_STREAM: impl.state_ = socket_ops::stream_oriented; break;
-  case SOCK_DGRAM: impl.state_ = socket_ops::datagram_oriented; break;
-  default: impl.state_ = 0; break;
-  }
-  impl.cancel_token_.reset(static_cast<void*>(0), socket_ops::noop_deleter());
-  ec = asio::error_code();
-  return ec;
-}
-
-void win_iocp_socket_service_base::start_send_op(
-    win_iocp_socket_service_base::base_implementation_type& impl,
-    WSABUF* buffers, std::size_t buffer_count,
-    socket_base::message_flags flags, bool noop, operation* op)
-{
-  update_cancellation_thread_id(impl);
-  iocp_service_.work_started();
-
-  if (noop)
-    iocp_service_.on_completion(op);
-  else if (!is_open(impl))
-    iocp_service_.on_completion(op, asio::error::bad_descriptor);
-  else
-  {
-    DWORD bytes_transferred = 0;
-    int result = ::WSASend(impl.socket_, buffers,
-        static_cast<DWORD>(buffer_count), &bytes_transferred, flags, op, 0);
-    DWORD last_error = ::WSAGetLastError();
-    if (last_error == ERROR_PORT_UNREACHABLE)
-      last_error = WSAECONNREFUSED;
-    if (result != 0 && last_error != WSA_IO_PENDING)
-      iocp_service_.on_completion(op, last_error, bytes_transferred);
-    else
-      iocp_service_.on_pending(op);
-  }
-}
-
-void win_iocp_socket_service_base::start_send_to_op(
-    win_iocp_socket_service_base::base_implementation_type& impl,
-    WSABUF* buffers, std::size_t buffer_count,
-    const socket_addr_type* addr, int addrlen,
-    socket_base::message_flags flags, operation* op)
-{
-  update_cancellation_thread_id(impl);
-  iocp_service_.work_started();
-
-  if (!is_open(impl))
-    iocp_service_.on_completion(op, asio::error::bad_descriptor);
-  else
-  {
-    DWORD bytes_transferred = 0;
-    int result = ::WSASendTo(impl.socket_, buffers,
-        static_cast<DWORD>(buffer_count),
-        &bytes_transferred, flags, addr, addrlen, op, 0);
-    DWORD last_error = ::WSAGetLastError();
-    if (last_error == ERROR_PORT_UNREACHABLE)
-      last_error = WSAECONNREFUSED;
-    if (result != 0 && last_error != WSA_IO_PENDING)
-      iocp_service_.on_completion(op, last_error, bytes_transferred);
-    else
-      iocp_service_.on_pending(op);
-  }
-}
-
-void win_iocp_socket_service_base::start_receive_op(
-    win_iocp_socket_service_base::base_implementation_type& impl,
-    WSABUF* buffers, std::size_t buffer_count,
-    socket_base::message_flags flags, bool noop, operation* op)
-{
-  update_cancellation_thread_id(impl);
-  iocp_service_.work_started();
-
-  if (noop)
-    iocp_service_.on_completion(op);
-  else if (!is_open(impl))
-    iocp_service_.on_completion(op, asio::error::bad_descriptor);
-  else
-  {
-    DWORD bytes_transferred = 0;
-    DWORD recv_flags = flags;
-    int result = ::WSARecv(impl.socket_, buffers,
-        static_cast<DWORD>(buffer_count),
-        &bytes_transferred, &recv_flags, op, 0);
-    DWORD last_error = ::WSAGetLastError();
-    if (last_error == ERROR_NETNAME_DELETED)
-      last_error = WSAECONNRESET;
-    else if (last_error == ERROR_PORT_UNREACHABLE)
-      last_error = WSAECONNREFUSED;
-    if (result != 0 && last_error != WSA_IO_PENDING)
-      iocp_service_.on_completion(op, last_error, bytes_transferred);
-    else
-      iocp_service_.on_pending(op);
-  }
-}
-
-void win_iocp_socket_service_base::start_null_buffers_receive_op(
-    win_iocp_socket_service_base::base_implementation_type& impl,
-    socket_base::message_flags flags, reactor_op* op)
-{
-  if ((impl.state_ & socket_ops::stream_oriented) != 0)
-  {
-    // For stream sockets on Windows, we may issue a 0-byte overlapped
-    // WSARecv to wait until there is data available on the socket.
-    ::WSABUF buf = { 0, 0 };
-    start_receive_op(impl, &buf, 1, flags, false, op);
-  }
-  else
-  {
-    start_reactor_op(impl,
-        (flags & socket_base::message_out_of_band)
-          ? select_reactor::except_op : select_reactor::read_op,
-        op);
-  }
-}
-
-void win_iocp_socket_service_base::start_receive_from_op(
-    win_iocp_socket_service_base::base_implementation_type& impl,
-    WSABUF* buffers, std::size_t buffer_count, socket_addr_type* addr,
-    socket_base::message_flags flags, int* addrlen, operation* op)
-{
-  update_cancellation_thread_id(impl);
-  iocp_service_.work_started();
-
-  if (!is_open(impl))
-    iocp_service_.on_completion(op, asio::error::bad_descriptor);
-  else
-  {
-    DWORD bytes_transferred = 0;
-    DWORD recv_flags = flags;
-    int result = ::WSARecvFrom(impl.socket_, buffers,
-        static_cast<DWORD>(buffer_count),
-        &bytes_transferred, &recv_flags, addr, addrlen, op, 0);
-    DWORD last_error = ::WSAGetLastError();
-    if (last_error == ERROR_PORT_UNREACHABLE)
-      last_error = WSAECONNREFUSED;
-    if (result != 0 && last_error != WSA_IO_PENDING)
-      iocp_service_.on_completion(op, last_error, bytes_transferred);
-    else
-      iocp_service_.on_pending(op);
-  }
-}
-
-void win_iocp_socket_service_base::start_accept_op(
-    win_iocp_socket_service_base::base_implementation_type& impl,
-    bool peer_is_open, socket_holder& new_socket, int family, int type,
-    int protocol, void* output_buffer, DWORD address_length, operation* op)
-{
-  update_cancellation_thread_id(impl);
-  iocp_service_.work_started();
-
-  if (!is_open(impl))
-    iocp_service_.on_completion(op, asio::error::bad_descriptor);
-  else if (peer_is_open)
-    iocp_service_.on_completion(op, asio::error::already_open);
-  else
-  {
-    asio::error_code ec;
-    new_socket.reset(socket_ops::socket(family, type, protocol, ec));
-    if (new_socket.get() == invalid_socket)
-      iocp_service_.on_completion(op, ec);
-    else
-    {
-      DWORD bytes_read = 0;
-      BOOL result = ::AcceptEx(impl.socket_, new_socket.get(), output_buffer,
-          0, address_length, address_length, &bytes_read, op);
-      DWORD last_error = ::WSAGetLastError();
-      if (!result && last_error != WSA_IO_PENDING)
-        iocp_service_.on_completion(op, last_error);
-      else
-        iocp_service_.on_pending(op);
-    }
-  }
-}
-
-void win_iocp_socket_service_base::restart_accept_op(
-    socket_type s, socket_holder& new_socket, int family, int type,
-    int protocol, void* output_buffer, DWORD address_length, operation* op)
-{
-  new_socket.reset();
-  iocp_service_.work_started();
-
-  asio::error_code ec;
-  new_socket.reset(socket_ops::socket(family, type, protocol, ec));
-  if (new_socket.get() == invalid_socket)
-    iocp_service_.on_completion(op, ec);
-  else
-  {
-    DWORD bytes_read = 0;
-    BOOL result = ::AcceptEx(s, new_socket.get(), output_buffer,
-        0, address_length, address_length, &bytes_read, op);
-    DWORD last_error = ::WSAGetLastError();
-    if (!result && last_error != WSA_IO_PENDING)
-      iocp_service_.on_completion(op, last_error);
-    else
-      iocp_service_.on_pending(op);
-  }
-}
-
-void win_iocp_socket_service_base::start_reactor_op(
-    win_iocp_socket_service_base::base_implementation_type& impl,
-    int op_type, reactor_op* op)
-{
-  select_reactor& r = get_reactor();
-  update_cancellation_thread_id(impl);
-
-  if (is_open(impl))
-  {
-    r.start_op(op_type, impl.socket_, impl.reactor_data_, op, false, false);
-    return;
-  }
-  else
-    op->ec_ = asio::error::bad_descriptor;
-
-  iocp_service_.post_immediate_completion(op, false);
-}
-
-void win_iocp_socket_service_base::start_connect_op(
-    win_iocp_socket_service_base::base_implementation_type& impl,
-    int family, int type, const socket_addr_type* addr,
-    std::size_t addrlen, win_iocp_socket_connect_op_base* op)
-{
-  // If ConnectEx is available, use that.
-  if (family == ASIO_OS_DEF(AF_INET)
-      || family == ASIO_OS_DEF(AF_INET6))
-  {
-    if (connect_ex_fn connect_ex = get_connect_ex(impl, type))
-    {
-      union address_union
-      {
-        socket_addr_type base;
-        sockaddr_in4_type v4;
-        sockaddr_in6_type v6;
-      } a;
-
-      using namespace std; // For memset.
-      memset(&a, 0, sizeof(a));
-      a.base.sa_family = family;
-
-      socket_ops::bind(impl.socket_, &a.base,
-          family == ASIO_OS_DEF(AF_INET)
-          ? sizeof(a.v4) : sizeof(a.v6), op->ec_);
-      if (op->ec_ && op->ec_ != asio::error::invalid_argument)
-      {
-        iocp_service_.post_immediate_completion(op, false);
-        return;
-      }
-
-      op->connect_ex_ = true;
-      update_cancellation_thread_id(impl);
-      iocp_service_.work_started();
-
-      BOOL result = connect_ex(impl.socket_,
-          addr, static_cast<int>(addrlen), 0, 0, 0, op);
-      DWORD last_error = ::WSAGetLastError();
-      if (!result && last_error != WSA_IO_PENDING)
-        iocp_service_.on_completion(op, last_error);
-      else
-        iocp_service_.on_pending(op);
-      return;
-    }
-  }
-
-  // Otherwise, fall back to a reactor-based implementation.
-  select_reactor& r = get_reactor();
-  update_cancellation_thread_id(impl);
-
-  if ((impl.state_ & socket_ops::non_blocking) != 0
-      || socket_ops::set_internal_non_blocking(
-        impl.socket_, impl.state_, true, op->ec_))
-  {
-    if (socket_ops::connect(impl.socket_, addr, addrlen, op->ec_) != 0)
-    {
-      if (op->ec_ == asio::error::in_progress
-          || op->ec_ == asio::error::would_block)
-      {
-        op->ec_ = asio::error_code();
-        r.start_op(select_reactor::connect_op, impl.socket_,
-            impl.reactor_data_, op, false, false);
-        return;
-      }
-    }
-  }
-
-  r.post_immediate_completion(op, false);
-}
-
-void win_iocp_socket_service_base::close_for_destruction(
-    win_iocp_socket_service_base::base_implementation_type& impl)
-{
-  if (is_open(impl))
-  {
-    ASIO_HANDLER_OPERATION((iocp_service_.context(),
-          "socket", &impl, impl.socket_, "close"));
-
-    // Check if the reactor was created, in which case we need to close the
-    // socket on the reactor as well to cancel any operations that might be
-    // running there.
-    select_reactor* r = static_cast<select_reactor*>(
-          interlocked_compare_exchange_pointer(
-            reinterpret_cast<void**>(&reactor_), 0, 0));
-    if (r)
-      r->deregister_descriptor(impl.socket_, impl.reactor_data_, true);
-
-    asio::error_code ignored_ec;
-    socket_ops::close(impl.socket_, impl.state_, true, ignored_ec);
-
-    if (r)
-      r->cleanup_descriptor_data(impl.reactor_data_);
-  }
-
-  impl.socket_ = invalid_socket;
-  impl.state_ = 0;
-  impl.cancel_token_.reset();
-#if defined(ASIO_ENABLE_CANCELIO)
-  impl.safe_cancellation_thread_id_ = 0;
-#endif // defined(ASIO_ENABLE_CANCELIO)
-}
-
-void win_iocp_socket_service_base::update_cancellation_thread_id(
-    win_iocp_socket_service_base::base_implementation_type& impl)
-{
-#if defined(ASIO_ENABLE_CANCELIO)
-  if (impl.safe_cancellation_thread_id_ == 0)
-    impl.safe_cancellation_thread_id_ = ::GetCurrentThreadId();
-  else if (impl.safe_cancellation_thread_id_ != ::GetCurrentThreadId())
-    impl.safe_cancellation_thread_id_ = ~DWORD(0);
-#else // defined(ASIO_ENABLE_CANCELIO)
-  (void)impl;
-#endif // defined(ASIO_ENABLE_CANCELIO)
-}
-
-select_reactor& win_iocp_socket_service_base::get_reactor()
-{
-  select_reactor* r = static_cast<select_reactor*>(
-        interlocked_compare_exchange_pointer(
-          reinterpret_cast<void**>(&reactor_), 0, 0));
-  if (!r)
-  {
-    r = &(use_service<select_reactor>(io_context_));
-    interlocked_exchange_pointer(reinterpret_cast<void**>(&reactor_), r);
-  }
-  return *r;
-}
-
-win_iocp_socket_service_base::connect_ex_fn
-win_iocp_socket_service_base::get_connect_ex(
-    win_iocp_socket_service_base::base_implementation_type& impl, int type)
-{
-#if defined(ASIO_DISABLE_CONNECTEX)
-  (void)impl;
-  (void)type;
-  return 0;
-#else // defined(ASIO_DISABLE_CONNECTEX)
-  if (type != ASIO_OS_DEF(SOCK_STREAM)
-      && type != ASIO_OS_DEF(SOCK_SEQPACKET))
-    return 0;
-
-  void* ptr = interlocked_compare_exchange_pointer(&connect_ex_, 0, 0);
-  if (!ptr)
-  {
-    GUID guid = { 0x25a207b9, 0xddf3, 0x4660,
-      { 0x8e, 0xe9, 0x76, 0xe5, 0x8c, 0x74, 0x06, 0x3e } };
-
-    DWORD bytes = 0;
-    if (::WSAIoctl(impl.socket_, SIO_GET_EXTENSION_FUNCTION_POINTER,
-          &guid, sizeof(guid), &ptr, sizeof(ptr), &bytes, 0, 0) != 0)
-    {
-      // Set connect_ex_ to a special value to indicate that ConnectEx is
-      // unavailable. That way we won't bother trying to look it up again.
-      ptr = this;
-    }
-
-    interlocked_exchange_pointer(&connect_ex_, ptr);
-  }
-
-  return reinterpret_cast<connect_ex_fn>(ptr == this ? 0 : ptr);
-#endif // defined(ASIO_DISABLE_CONNECTEX)
-}
-
-win_iocp_socket_service_base::nt_set_info_fn
-win_iocp_socket_service_base::get_nt_set_info()
-{
-  void* ptr = interlocked_compare_exchange_pointer(&nt_set_info_, 0, 0);
-  if (!ptr)
-  {
-    if (HMODULE h = ::GetModuleHandleA("NTDLL.DLL"))
-      ptr = reinterpret_cast<void*>(GetProcAddress(h, "NtSetInformationFile"));
-
-    // On failure, set nt_set_info_ to a special value to indicate that the
-    // NtSetInformationFile function is unavailable. That way we won't bother
-    // trying to look it up again.
-    interlocked_exchange_pointer(&nt_set_info_, ptr ? ptr : this);
-  }
-
-  return reinterpret_cast<nt_set_info_fn>(ptr == this ? 0 : ptr);
-}
-
-void* win_iocp_socket_service_base::interlocked_compare_exchange_pointer(
-    void** dest, void* exch, void* cmp)
-{
-#if defined(_M_IX86)
-  return reinterpret_cast<void*>(InterlockedCompareExchange(
-        reinterpret_cast<PLONG>(dest), reinterpret_cast<LONG>(exch),
-        reinterpret_cast<LONG>(cmp)));
-#else
-  return InterlockedCompareExchangePointer(dest, exch, cmp);
-#endif
-}
-
-void* win_iocp_socket_service_base::interlocked_exchange_pointer(
-    void** dest, void* val)
-{
-#if defined(_M_IX86)
-  return reinterpret_cast<void*>(InterlockedExchange(
-        reinterpret_cast<PLONG>(dest), reinterpret_cast<LONG>(val)));
-#else
-  return InterlockedExchangePointer(dest, val);
-#endif
-}
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // defined(ASIO_HAS_IOCP)
-
-#endif // ASIO_DETAIL_IMPL_WIN_IOCP_SOCKET_SERVICE_BASE_IPP
diff --git a/lib/asio/detail/impl/win_mutex.ipp b/lib/asio/detail/impl/win_mutex.ipp
deleted file mode 100644
index dc58a12..0000000
--- a/lib/asio/detail/impl/win_mutex.ipp
+++ /dev/null
@@ -1,84 +0,0 @@
-//
-// detail/impl/win_mutex.ipp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_IMPL_WIN_MUTEX_IPP
-#define ASIO_DETAIL_IMPL_WIN_MUTEX_IPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-
-#if defined(ASIO_WINDOWS)
-
-#include "asio/detail/throw_error.hpp"
-#include "asio/detail/win_mutex.hpp"
-#include "asio/error.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-win_mutex::win_mutex()
-{
-  int error = do_init();
-  asio::error_code ec(error,
-      asio::error::get_system_category());
-  asio::detail::throw_error(ec, "mutex");
-}
-
-int win_mutex::do_init()
-{
-#if defined(__MINGW32__)
-  // Not sure if MinGW supports structured exception handling, so for now
-  // we'll just call the Windows API and hope.
-# if defined(UNDER_CE)
-  ::InitializeCriticalSection(&crit_section_);
-# elif defined(ASIO_WINDOWS_APP)
-  if (!::InitializeCriticalSectionEx(&crit_section_, 0, 0))
-    return ::GetLastError();
-# else
-  if (!::InitializeCriticalSectionAndSpinCount(&crit_section_, 0x80000000))
-    return ::GetLastError();
-# endif
-  return 0;
-#else
-  __try
-  {
-# if defined(UNDER_CE)
-    ::InitializeCriticalSection(&crit_section_);
-# elif defined(ASIO_WINDOWS_APP)
-    if (!::InitializeCriticalSectionEx(&crit_section_, 0, 0))
-      return ::GetLastError();
-# else
-    if (!::InitializeCriticalSectionAndSpinCount(&crit_section_, 0x80000000))
-      return ::GetLastError();
-# endif
-  }
-  __except(GetExceptionCode() == STATUS_NO_MEMORY
-      ? EXCEPTION_EXECUTE_HANDLER : EXCEPTION_CONTINUE_SEARCH)
-  {
-    return ERROR_OUTOFMEMORY;
-  }
-
-  return 0;
-#endif
-}
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // defined(ASIO_WINDOWS)
-
-#endif // ASIO_DETAIL_IMPL_WIN_MUTEX_IPP
diff --git a/lib/asio/detail/impl/win_object_handle_service.ipp b/lib/asio/detail/impl/win_object_handle_service.ipp
deleted file mode 100644
index c5e59d1..0000000
--- a/lib/asio/detail/impl/win_object_handle_service.ipp
+++ /dev/null
@@ -1,449 +0,0 @@
-//
-// detail/impl/win_object_handle_service.ipp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-// Copyright (c) 2011 Boris Schaeling (boris@highscore.de)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_IMPL_WIN_OBJECT_HANDLE_SERVICE_IPP
-#define ASIO_DETAIL_IMPL_WIN_OBJECT_HANDLE_SERVICE_IPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-
-#if defined(ASIO_HAS_WINDOWS_OBJECT_HANDLE)
-
-#include "asio/detail/win_object_handle_service.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-win_object_handle_service::win_object_handle_service(
-    asio::io_context& io_context)
-  : service_base<win_object_handle_service>(io_context),
-    io_context_(asio::use_service<io_context_impl>(io_context)),
-    mutex_(),
-    impl_list_(0),
-    shutdown_(false)
-{
-}
-
-void win_object_handle_service::shutdown()
-{
-  mutex::scoped_lock lock(mutex_);
-
-  // Setting this flag to true prevents new objects from being registered, and
-  // new asynchronous wait operations from being started. We only need to worry
-  // about cleaning up the operations that are currently in progress.
-  shutdown_ = true;
-
-  op_queue<operation> ops;
-  for (implementation_type* impl = impl_list_; impl; impl = impl->next_)
-    ops.push(impl->op_queue_);
-
-  lock.unlock();
-
-  io_context_.abandon_operations(ops);
-}
-
-void win_object_handle_service::construct(
-    win_object_handle_service::implementation_type& impl)
-{
-  impl.handle_ = INVALID_HANDLE_VALUE;
-  impl.wait_handle_ = INVALID_HANDLE_VALUE;
-  impl.owner_ = this;
-
-  // Insert implementation into linked list of all implementations.
-  mutex::scoped_lock lock(mutex_);
-  if (!shutdown_)
-  {
-    impl.next_ = impl_list_;
-    impl.prev_ = 0;
-    if (impl_list_)
-      impl_list_->prev_ = &impl;
-    impl_list_ = &impl;
-  }
-}
-
-void win_object_handle_service::move_construct(
-    win_object_handle_service::implementation_type& impl,
-    win_object_handle_service::implementation_type& other_impl)
-{
-  mutex::scoped_lock lock(mutex_);
-
-  // Insert implementation into linked list of all implementations.
-  if (!shutdown_)
-  {
-    impl.next_ = impl_list_;
-    impl.prev_ = 0;
-    if (impl_list_)
-      impl_list_->prev_ = &impl;
-    impl_list_ = &impl;
-  }
-
-  impl.handle_ = other_impl.handle_;
-  other_impl.handle_ = INVALID_HANDLE_VALUE;
-  impl.wait_handle_ = other_impl.wait_handle_;
-  other_impl.wait_handle_ = INVALID_HANDLE_VALUE;
-  impl.op_queue_.push(other_impl.op_queue_);
-  impl.owner_ = this;
-
-  // We must not hold the lock while calling UnregisterWaitEx. This is because
-  // the registered callback function might be invoked while we are waiting for
-  // UnregisterWaitEx to complete.
-  lock.unlock();
-
-  if (impl.wait_handle_ != INVALID_HANDLE_VALUE)
-    ::UnregisterWaitEx(impl.wait_handle_, INVALID_HANDLE_VALUE);
-
-  if (!impl.op_queue_.empty())
-    register_wait_callback(impl, lock);
-}
-
-void win_object_handle_service::move_assign(
-    win_object_handle_service::implementation_type& impl,
-    win_object_handle_service& other_service,
-    win_object_handle_service::implementation_type& other_impl)
-{
-  asio::error_code ignored_ec;
-  close(impl, ignored_ec);
-
-  mutex::scoped_lock lock(mutex_);
-
-  if (this != &other_service)
-  {
-    // Remove implementation from linked list of all implementations.
-    if (impl_list_ == &impl)
-      impl_list_ = impl.next_;
-    if (impl.prev_)
-      impl.prev_->next_ = impl.next_;
-    if (impl.next_)
-      impl.next_->prev_= impl.prev_;
-    impl.next_ = 0;
-    impl.prev_ = 0;
-  }
-
-  impl.handle_ = other_impl.handle_;
-  other_impl.handle_ = INVALID_HANDLE_VALUE;
-  impl.wait_handle_ = other_impl.wait_handle_;
-  other_impl.wait_handle_ = INVALID_HANDLE_VALUE;
-  impl.op_queue_.push(other_impl.op_queue_);
-  impl.owner_ = this;
-
-  if (this != &other_service)
-  {
-    // Insert implementation into linked list of all implementations.
-    impl.next_ = other_service.impl_list_;
-    impl.prev_ = 0;
-    if (other_service.impl_list_)
-      other_service.impl_list_->prev_ = &impl;
-    other_service.impl_list_ = &impl;
-  }
-
-  // We must not hold the lock while calling UnregisterWaitEx. This is because
-  // the registered callback function might be invoked while we are waiting for
-  // UnregisterWaitEx to complete.
-  lock.unlock();
-
-  if (impl.wait_handle_ != INVALID_HANDLE_VALUE)
-    ::UnregisterWaitEx(impl.wait_handle_, INVALID_HANDLE_VALUE);
-
-  if (!impl.op_queue_.empty())
-    register_wait_callback(impl, lock);
-}
-
-void win_object_handle_service::destroy(
-    win_object_handle_service::implementation_type& impl)
-{
-  mutex::scoped_lock lock(mutex_);
-
-  // Remove implementation from linked list of all implementations.
-  if (impl_list_ == &impl)
-    impl_list_ = impl.next_;
-  if (impl.prev_)
-    impl.prev_->next_ = impl.next_;
-  if (impl.next_)
-    impl.next_->prev_= impl.prev_;
-  impl.next_ = 0;
-  impl.prev_ = 0;
-
-  if (is_open(impl))
-  {
-    ASIO_HANDLER_OPERATION((io_context_.context(), "object_handle",
-          &impl, reinterpret_cast<uintmax_t>(impl.wait_handle_), "close"));
-
-    HANDLE wait_handle = impl.wait_handle_;
-    impl.wait_handle_ = INVALID_HANDLE_VALUE;
-
-    op_queue<operation> ops;
-    while (wait_op* op = impl.op_queue_.front())
-    {
-      op->ec_ = asio::error::operation_aborted;
-      impl.op_queue_.pop();
-      ops.push(op);
-    }
-
-    // We must not hold the lock while calling UnregisterWaitEx. This is
-    // because the registered callback function might be invoked while we are
-    // waiting for UnregisterWaitEx to complete.
-    lock.unlock();
-
-    if (wait_handle != INVALID_HANDLE_VALUE)
-      ::UnregisterWaitEx(wait_handle, INVALID_HANDLE_VALUE);
-
-    ::CloseHandle(impl.handle_);
-    impl.handle_ = INVALID_HANDLE_VALUE;
-
-    io_context_.post_deferred_completions(ops);
-  }
-}
-
-asio::error_code win_object_handle_service::assign(
-    win_object_handle_service::implementation_type& impl,
-    const native_handle_type& handle, asio::error_code& ec)
-{
-  if (is_open(impl))
-  {
-    ec = asio::error::already_open;
-    return ec;
-  }
-
-  impl.handle_ = handle;
-  ec = asio::error_code();
-  return ec;
-}
-
-asio::error_code win_object_handle_service::close(
-    win_object_handle_service::implementation_type& impl,
-    asio::error_code& ec)
-{
-  if (is_open(impl))
-  {
-    ASIO_HANDLER_OPERATION((io_context_.context(), "object_handle",
-          &impl, reinterpret_cast<uintmax_t>(impl.wait_handle_), "close"));
-
-    mutex::scoped_lock lock(mutex_);
-
-    HANDLE wait_handle = impl.wait_handle_;
-    impl.wait_handle_ = INVALID_HANDLE_VALUE;
-
-    op_queue<operation> completed_ops;
-    while (wait_op* op = impl.op_queue_.front())
-    {
-      impl.op_queue_.pop();
-      op->ec_ = asio::error::operation_aborted;
-      completed_ops.push(op);
-    }
-
-    // We must not hold the lock while calling UnregisterWaitEx. This is
-    // because the registered callback function might be invoked while we are
-    // waiting for UnregisterWaitEx to complete.
-    lock.unlock();
-
-    if (wait_handle != INVALID_HANDLE_VALUE)
-      ::UnregisterWaitEx(wait_handle, INVALID_HANDLE_VALUE);
-
-    if (::CloseHandle(impl.handle_))
-    {
-      impl.handle_ = INVALID_HANDLE_VALUE;
-      ec = asio::error_code();
-    }
-    else
-    {
-      DWORD last_error = ::GetLastError();
-      ec = asio::error_code(last_error,
-          asio::error::get_system_category());
-    }
-
-    io_context_.post_deferred_completions(completed_ops);
-  }
-  else
-  {
-    ec = asio::error_code();
-  }
-
-  return ec;
-}
-
-asio::error_code win_object_handle_service::cancel(
-    win_object_handle_service::implementation_type& impl,
-    asio::error_code& ec)
-{
-  if (is_open(impl))
-  {
-    ASIO_HANDLER_OPERATION((io_context_.context(), "object_handle",
-          &impl, reinterpret_cast<uintmax_t>(impl.wait_handle_), "cancel"));
-
-    mutex::scoped_lock lock(mutex_);
-
-    HANDLE wait_handle = impl.wait_handle_;
-    impl.wait_handle_ = INVALID_HANDLE_VALUE;
-
-    op_queue<operation> completed_ops;
-    while (wait_op* op = impl.op_queue_.front())
-    {
-      op->ec_ = asio::error::operation_aborted;
-      impl.op_queue_.pop();
-      completed_ops.push(op);
-    }
-
-    // We must not hold the lock while calling UnregisterWaitEx. This is
-    // because the registered callback function might be invoked while we are
-    // waiting for UnregisterWaitEx to complete.
-    lock.unlock();
-
-    if (wait_handle != INVALID_HANDLE_VALUE)
-      ::UnregisterWaitEx(wait_handle, INVALID_HANDLE_VALUE);
-
-    ec = asio::error_code();
-
-    io_context_.post_deferred_completions(completed_ops);
-  }
-  else
-  {
-    ec = asio::error::bad_descriptor;
-  }
-
-  return ec;
-}
-
-void win_object_handle_service::wait(
-    win_object_handle_service::implementation_type& impl,
-    asio::error_code& ec)
-{
-  switch (::WaitForSingleObject(impl.handle_, INFINITE))
-  {
-  case WAIT_FAILED:
-    {
-      DWORD last_error = ::GetLastError();
-      ec = asio::error_code(last_error,
-          asio::error::get_system_category());
-      break;
-    }
-  case WAIT_OBJECT_0:
-  case WAIT_ABANDONED:
-  default:
-    ec = asio::error_code();
-    break;
-  }
-}
-
-void win_object_handle_service::start_wait_op(
-    win_object_handle_service::implementation_type& impl, wait_op* op)
-{
-  io_context_.work_started();
-
-  if (is_open(impl))
-  {
-    mutex::scoped_lock lock(mutex_);
-
-    if (!shutdown_)
-    {
-      impl.op_queue_.push(op);
-
-      // Only the first operation to be queued gets to register a wait callback.
-      // Subsequent operations have to wait for the first to finish.
-      if (impl.op_queue_.front() == op)
-        register_wait_callback(impl, lock);
-    }
-    else
-    {
-      lock.unlock();
-      io_context_.post_deferred_completion(op);
-    }
-  }
-  else
-  {
-    op->ec_ = asio::error::bad_descriptor;
-    io_context_.post_deferred_completion(op);
-  }
-}
-
-void win_object_handle_service::register_wait_callback(
-    win_object_handle_service::implementation_type& impl,
-    mutex::scoped_lock& lock)
-{
-  lock.lock();
-
-  if (!RegisterWaitForSingleObject(&impl.wait_handle_,
-        impl.handle_, &win_object_handle_service::wait_callback,
-        &impl, INFINITE, WT_EXECUTEONLYONCE))
-  {
-    DWORD last_error = ::GetLastError();
-    asio::error_code ec(last_error,
-        asio::error::get_system_category());
-
-    op_queue<operation> completed_ops;
-    while (wait_op* op = impl.op_queue_.front())
-    {
-      op->ec_ = ec;
-      impl.op_queue_.pop();
-      completed_ops.push(op);
-    }
-
-    lock.unlock();
-    io_context_.post_deferred_completions(completed_ops);
-  }
-}
-
-void win_object_handle_service::wait_callback(PVOID param, BOOLEAN)
-{
-  implementation_type* impl = static_cast<implementation_type*>(param);
-  mutex::scoped_lock lock(impl->owner_->mutex_);
-
-  if (impl->wait_handle_ != INVALID_HANDLE_VALUE)
-  {
-    ::UnregisterWaitEx(impl->wait_handle_, NULL);
-    impl->wait_handle_ = INVALID_HANDLE_VALUE;
-  }
-
-  if (wait_op* op = impl->op_queue_.front())
-  {
-    op_queue<operation> completed_ops;
-
-    op->ec_ = asio::error_code();
-    impl->op_queue_.pop();
-    completed_ops.push(op);
-
-    if (!impl->op_queue_.empty())
-    {
-      if (!RegisterWaitForSingleObject(&impl->wait_handle_,
-            impl->handle_, &win_object_handle_service::wait_callback,
-            param, INFINITE, WT_EXECUTEONLYONCE))
-      {
-        DWORD last_error = ::GetLastError();
-        asio::error_code ec(last_error,
-            asio::error::get_system_category());
-
-        while ((op = impl->op_queue_.front()) != 0)
-        {
-          op->ec_ = ec;
-          impl->op_queue_.pop();
-          completed_ops.push(op);
-        }
-      }
-    }
-
-    io_context_impl& ioc = impl->owner_->io_context_;
-    lock.unlock();
-    ioc.post_deferred_completions(completed_ops);
-  }
-}
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // defined(ASIO_HAS_WINDOWS_OBJECT_HANDLE)
-
-#endif // ASIO_DETAIL_IMPL_WIN_OBJECT_HANDLE_SERVICE_IPP
diff --git a/lib/asio/detail/impl/win_static_mutex.ipp b/lib/asio/detail/impl/win_static_mutex.ipp
deleted file mode 100644
index 42089bd..0000000
--- a/lib/asio/detail/impl/win_static_mutex.ipp
+++ /dev/null
@@ -1,136 +0,0 @@
-//
-// detail/impl/win_static_mutex.ipp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_IMPL_WIN_STATIC_MUTEX_IPP
-#define ASIO_DETAIL_IMPL_WIN_STATIC_MUTEX_IPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-
-#if defined(ASIO_WINDOWS)
-
-#include <cstdio>
-#include "asio/detail/throw_error.hpp"
-#include "asio/detail/win_static_mutex.hpp"
-#include "asio/error.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-void win_static_mutex::init()
-{
-  int error = do_init();
-  asio::error_code ec(error,
-      asio::error::get_system_category());
-  asio::detail::throw_error(ec, "static_mutex");
-}
-
-int win_static_mutex::do_init()
-{
-  using namespace std; // For sprintf.
-  wchar_t mutex_name[128];
-#if defined(ASIO_HAS_SECURE_RTL)
-  swprintf_s(
-#else // defined(ASIO_HAS_SECURE_RTL)
-  _snwprintf(
-#endif // defined(ASIO_HAS_SECURE_RTL)
-      mutex_name, 128, L"asio-58CCDC44-6264-4842-90C2-F3C545CB8AA7-%u-%p",
-      static_cast<unsigned int>(::GetCurrentProcessId()), this);
-
-#if defined(ASIO_WINDOWS_APP)
-  HANDLE mutex = ::CreateMutexExW(0, mutex_name, CREATE_MUTEX_INITIAL_OWNER, 0);
-#else // defined(ASIO_WINDOWS_APP)
-  HANDLE mutex = ::CreateMutexW(0, TRUE, mutex_name);
-#endif // defined(ASIO_WINDOWS_APP)
-  DWORD last_error = ::GetLastError();
-  if (mutex == 0)
-    return ::GetLastError();
-
-  if (last_error == ERROR_ALREADY_EXISTS)
-  {
-#if defined(ASIO_WINDOWS_APP)
-    ::WaitForSingleObjectEx(mutex, INFINITE, false);
-#else // defined(ASIO_WINDOWS_APP)
-    ::WaitForSingleObject(mutex, INFINITE);
-#endif // defined(ASIO_WINDOWS_APP)
-  }
-
-  if (initialised_)
-  {
-    ::ReleaseMutex(mutex);
-    ::CloseHandle(mutex);
-    return 0;
-  }
-
-#if defined(__MINGW32__)
-  // Not sure if MinGW supports structured exception handling, so for now
-  // we'll just call the Windows API and hope.
-# if defined(UNDER_CE)
-  ::InitializeCriticalSection(&crit_section_);
-# else
-  if (!::InitializeCriticalSectionAndSpinCount(&crit_section_, 0x80000000))
-  {
-    last_error = ::GetLastError();
-    ::ReleaseMutex(mutex);
-    ::CloseHandle(mutex);
-    return last_error;
-  }
-# endif
-#else
-  __try
-  {
-# if defined(UNDER_CE)
-    ::InitializeCriticalSection(&crit_section_);
-# elif defined(ASIO_WINDOWS_APP)
-    if (!::InitializeCriticalSectionEx(&crit_section_, 0, 0))
-    {
-      last_error = ::GetLastError();
-      ::ReleaseMutex(mutex);
-      ::CloseHandle(mutex);
-      return last_error;
-    }
-# else
-    if (!::InitializeCriticalSectionAndSpinCount(&crit_section_, 0x80000000))
-    {
-      last_error = ::GetLastError();
-      ::ReleaseMutex(mutex);
-      ::CloseHandle(mutex);
-      return last_error;
-    }
-# endif
-  }
-  __except(GetExceptionCode() == STATUS_NO_MEMORY
-      ? EXCEPTION_EXECUTE_HANDLER : EXCEPTION_CONTINUE_SEARCH)
-  {
-    ::ReleaseMutex(mutex);
-    ::CloseHandle(mutex);
-    return ERROR_OUTOFMEMORY;
-  }
-#endif
-
-  initialised_ = true;
-  ::ReleaseMutex(mutex);
-  ::CloseHandle(mutex);
-  return 0;
-}
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // defined(ASIO_WINDOWS)
-
-#endif // ASIO_DETAIL_IMPL_WIN_STATIC_MUTEX_IPP
diff --git a/lib/asio/detail/impl/win_thread.ipp b/lib/asio/detail/impl/win_thread.ipp
deleted file mode 100644
index ed6dbaf..0000000
--- a/lib/asio/detail/impl/win_thread.ipp
+++ /dev/null
@@ -1,150 +0,0 @@
-//
-// detail/impl/win_thread.ipp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_IMPL_WIN_THREAD_IPP
-#define ASIO_DETAIL_IMPL_WIN_THREAD_IPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-
-#if defined(ASIO_WINDOWS) \
-  && !defined(ASIO_WINDOWS_APP) \
-  && !defined(UNDER_CE)
-
-#include <process.h>
-#include "asio/detail/throw_error.hpp"
-#include "asio/detail/win_thread.hpp"
-#include "asio/error.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-win_thread::~win_thread()
-{
-  ::CloseHandle(thread_);
-
-  // The exit_event_ handle is deliberately allowed to leak here since it
-  // is an error for the owner of an internal thread not to join() it.
-}
-
-void win_thread::join()
-{
-  HANDLE handles[2] = { exit_event_, thread_ };
-  ::WaitForMultipleObjects(2, handles, FALSE, INFINITE);
-  ::CloseHandle(exit_event_);
-  if (terminate_threads())
-  {
-    ::TerminateThread(thread_, 0);
-  }
-  else
-  {
-    ::QueueUserAPC(apc_function, thread_, 0);
-    ::WaitForSingleObject(thread_, INFINITE);
-  }
-}
-
-std::size_t win_thread::hardware_concurrency()
-{
-  SYSTEM_INFO system_info;
-  ::GetSystemInfo(&system_info);
-  return system_info.dwNumberOfProcessors;
-}
-
-void win_thread::start_thread(func_base* arg, unsigned int stack_size)
-{
-  ::HANDLE entry_event = 0;
-  arg->entry_event_ = entry_event = ::CreateEventW(0, true, false, 0);
-  if (!entry_event)
-  {
-    DWORD last_error = ::GetLastError();
-    delete arg;
-    asio::error_code ec(last_error,
-        asio::error::get_system_category());
-    asio::detail::throw_error(ec, "thread.entry_event");
-  }
-
-  arg->exit_event_ = exit_event_ = ::CreateEventW(0, true, false, 0);
-  if (!exit_event_)
-  {
-    DWORD last_error = ::GetLastError();
-    delete arg;
-    asio::error_code ec(last_error,
-        asio::error::get_system_category());
-    asio::detail::throw_error(ec, "thread.exit_event");
-  }
-
-  unsigned int thread_id = 0;
-  thread_ = reinterpret_cast<HANDLE>(::_beginthreadex(0,
-        stack_size, win_thread_function, arg, 0, &thread_id));
-  if (!thread_)
-  {
-    DWORD last_error = ::GetLastError();
-    delete arg;
-    if (entry_event)
-      ::CloseHandle(entry_event);
-    if (exit_event_)
-      ::CloseHandle(exit_event_);
-    asio::error_code ec(last_error,
-        asio::error::get_system_category());
-    asio::detail::throw_error(ec, "thread");
-  }
-
-  if (entry_event)
-  {
-    ::WaitForSingleObject(entry_event, INFINITE);
-    ::CloseHandle(entry_event);
-  }
-}
-
-unsigned int __stdcall win_thread_function(void* arg)
-{
-  win_thread::auto_func_base_ptr func = {
-      static_cast<win_thread::func_base*>(arg) };
-
-  ::SetEvent(func.ptr->entry_event_);
-
-  func.ptr->run();
-
-  // Signal that the thread has finished its work, but rather than returning go
-  // to sleep to put the thread into a well known state. If the thread is being
-  // joined during global object destruction then it may be killed using
-  // TerminateThread (to avoid a deadlock in DllMain). Otherwise, the SleepEx
-  // call will be interrupted using QueueUserAPC and the thread will shut down
-  // cleanly.
-  HANDLE exit_event = func.ptr->exit_event_;
-  delete func.ptr;
-  func.ptr = 0;
-  ::SetEvent(exit_event);
-  ::SleepEx(INFINITE, TRUE);
-
-  return 0;
-}
-
-#if defined(WINVER) && (WINVER < 0x0500)
-void __stdcall apc_function(ULONG) {}
-#else
-void __stdcall apc_function(ULONG_PTR) {}
-#endif
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // defined(ASIO_WINDOWS)
-       // && !defined(ASIO_WINDOWS_APP)
-       // && !defined(UNDER_CE)
-
-#endif // ASIO_DETAIL_IMPL_WIN_THREAD_IPP
diff --git a/lib/asio/detail/impl/win_tss_ptr.ipp b/lib/asio/detail/impl/win_tss_ptr.ipp
deleted file mode 100644
index 61df0ce..0000000
--- a/lib/asio/detail/impl/win_tss_ptr.ipp
+++ /dev/null
@@ -1,57 +0,0 @@
-//
-// detail/impl/win_tss_ptr.ipp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_IMPL_WIN_TSS_PTR_IPP
-#define ASIO_DETAIL_IMPL_WIN_TSS_PTR_IPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-
-#if defined(ASIO_WINDOWS)
-
-#include "asio/detail/throw_error.hpp"
-#include "asio/detail/win_tss_ptr.hpp"
-#include "asio/error.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-DWORD win_tss_ptr_create()
-{
-#if defined(UNDER_CE)
-  const DWORD out_of_indexes = 0xFFFFFFFF;
-#else
-  const DWORD out_of_indexes = TLS_OUT_OF_INDEXES;
-#endif
-
-  DWORD tss_key = ::TlsAlloc();
-  if (tss_key == out_of_indexes)
-  {
-    DWORD last_error = ::GetLastError();
-    asio::error_code ec(last_error,
-        asio::error::get_system_category());
-    asio::detail::throw_error(ec, "tss");
-  }
-  return tss_key;
-}
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // defined(ASIO_WINDOWS)
-
-#endif // ASIO_DETAIL_IMPL_WIN_TSS_PTR_IPP
diff --git a/lib/asio/detail/impl/winrt_ssocket_service_base.ipp b/lib/asio/detail/impl/winrt_ssocket_service_base.ipp
deleted file mode 100644
index 288ca8b..0000000
--- a/lib/asio/detail/impl/winrt_ssocket_service_base.ipp
+++ /dev/null
@@ -1,629 +0,0 @@
-//
-// detail/impl/winrt_ssocket_service_base.ipp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_IMPL_WINRT_SSOCKET_SERVICE_BASE_IPP
-#define ASIO_DETAIL_IMPL_WINRT_SSOCKET_SERVICE_BASE_IPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-
-#if defined(ASIO_WINDOWS_RUNTIME)
-
-#include <cstring>
-#include "asio/detail/winrt_ssocket_service_base.hpp"
-#include "asio/detail/winrt_async_op.hpp"
-#include "asio/detail/winrt_utils.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-winrt_ssocket_service_base::winrt_ssocket_service_base(
-    asio::io_context& io_context)
-  : io_context_(use_service<io_context_impl>(io_context)),
-    async_manager_(use_service<winrt_async_manager>(io_context)),
-    mutex_(),
-    impl_list_(0)
-{
-}
-
-void winrt_ssocket_service_base::base_shutdown()
-{
-  // Close all implementations, causing all operations to complete.
-  asio::detail::mutex::scoped_lock lock(mutex_);
-  base_implementation_type* impl = impl_list_;
-  while (impl)
-  {
-    asio::error_code ignored_ec;
-    close(*impl, ignored_ec);
-    impl = impl->next_;
-  }
-}
-
-void winrt_ssocket_service_base::construct(
-    winrt_ssocket_service_base::base_implementation_type& impl)
-{
-  // Insert implementation into linked list of all implementations.
-  asio::detail::mutex::scoped_lock lock(mutex_);
-  impl.next_ = impl_list_;
-  impl.prev_ = 0;
-  if (impl_list_)
-    impl_list_->prev_ = &impl;
-  impl_list_ = &impl;
-}
-
-void winrt_ssocket_service_base::base_move_construct(
-    winrt_ssocket_service_base::base_implementation_type& impl,
-    winrt_ssocket_service_base::base_implementation_type& other_impl)
-{
-  impl.socket_ = other_impl.socket_;
-  other_impl.socket_ = nullptr;
-
-  // Insert implementation into linked list of all implementations.
-  asio::detail::mutex::scoped_lock lock(mutex_);
-  impl.next_ = impl_list_;
-  impl.prev_ = 0;
-  if (impl_list_)
-    impl_list_->prev_ = &impl;
-  impl_list_ = &impl;
-}
-
-void winrt_ssocket_service_base::base_move_assign(
-    winrt_ssocket_service_base::base_implementation_type& impl,
-    winrt_ssocket_service_base& other_service,
-    winrt_ssocket_service_base::base_implementation_type& other_impl)
-{
-  asio::error_code ignored_ec;
-  close(impl, ignored_ec);
-
-  if (this != &other_service)
-  {
-    // Remove implementation from linked list of all implementations.
-    asio::detail::mutex::scoped_lock lock(mutex_);
-    if (impl_list_ == &impl)
-      impl_list_ = impl.next_;
-    if (impl.prev_)
-      impl.prev_->next_ = impl.next_;
-    if (impl.next_)
-      impl.next_->prev_= impl.prev_;
-    impl.next_ = 0;
-    impl.prev_ = 0;
-  }
-
-  impl.socket_ = other_impl.socket_;
-  other_impl.socket_ = nullptr;
-
-  if (this != &other_service)
-  {
-    // Insert implementation into linked list of all implementations.
-    asio::detail::mutex::scoped_lock lock(other_service.mutex_);
-    impl.next_ = other_service.impl_list_;
-    impl.prev_ = 0;
-    if (other_service.impl_list_)
-      other_service.impl_list_->prev_ = &impl;
-    other_service.impl_list_ = &impl;
-  }
-}
-
-void winrt_ssocket_service_base::destroy(
-    winrt_ssocket_service_base::base_implementation_type& impl)
-{
-  asio::error_code ignored_ec;
-  close(impl, ignored_ec);
-
-  // Remove implementation from linked list of all implementations.
-  asio::detail::mutex::scoped_lock lock(mutex_);
-  if (impl_list_ == &impl)
-    impl_list_ = impl.next_;
-  if (impl.prev_)
-    impl.prev_->next_ = impl.next_;
-  if (impl.next_)
-    impl.next_->prev_= impl.prev_;
-  impl.next_ = 0;
-  impl.prev_ = 0;
-}
-
-asio::error_code winrt_ssocket_service_base::close(
-    winrt_ssocket_service_base::base_implementation_type& impl,
-    asio::error_code& ec)
-{
-  if (impl.socket_)
-  {
-    delete impl.socket_;
-    impl.socket_ = nullptr;
-  }
-
-  ec = asio::error_code();
-  return ec;
-}
-
-winrt_ssocket_service_base::native_handle_type
-winrt_ssocket_service_base::release(
-    winrt_ssocket_service_base::base_implementation_type& impl,
-    asio::error_code& ec)
-{
-  if (!is_open(impl))
-    return nullptr;
-
-  cancel(impl, ec);
-  if (ec)
-    return nullptr;
-
-  native_handle_type tmp = impl.socket_;
-  impl.socket_ = nullptr;
-  return tmp;
-}
-
-std::size_t winrt_ssocket_service_base::do_get_endpoint(
-    const base_implementation_type& impl, bool local,
-    void* addr, std::size_t addr_len, asio::error_code& ec) const
-{
-  if (!is_open(impl))
-  {
-    ec = asio::error::bad_descriptor;
-    return addr_len;
-  }
-
-  try
-  {
-    std::string addr_string = winrt_utils::string(local
-        ? impl.socket_->Information->LocalAddress->CanonicalName
-        : impl.socket_->Information->RemoteAddress->CanonicalName);
-    unsigned short port = winrt_utils::integer(local
-        ? impl.socket_->Information->LocalPort
-        : impl.socket_->Information->RemotePort);
-    unsigned long scope = 0;
-
-    switch (reinterpret_cast<const socket_addr_type*>(addr)->sa_family)
-    {
-    case ASIO_OS_DEF(AF_INET):
-      if (addr_len < sizeof(sockaddr_in4_type))
-      {
-        ec = asio::error::invalid_argument;
-        return addr_len;
-      }
-      else
-      {
-        socket_ops::inet_pton(ASIO_OS_DEF(AF_INET), addr_string.c_str(),
-            &reinterpret_cast<sockaddr_in4_type*>(addr)->sin_addr, &scope, ec);
-        reinterpret_cast<sockaddr_in4_type*>(addr)->sin_port
-          = socket_ops::host_to_network_short(port);
-        ec = asio::error_code();
-        return sizeof(sockaddr_in4_type);
-      }
-    case ASIO_OS_DEF(AF_INET6):
-      if (addr_len < sizeof(sockaddr_in6_type))
-      {
-        ec = asio::error::invalid_argument;
-        return addr_len;
-      }
-      else
-      {
-        socket_ops::inet_pton(ASIO_OS_DEF(AF_INET6), addr_string.c_str(),
-            &reinterpret_cast<sockaddr_in6_type*>(addr)->sin6_addr, &scope, ec);
-        reinterpret_cast<sockaddr_in6_type*>(addr)->sin6_port
-          = socket_ops::host_to_network_short(port);
-        ec = asio::error_code();
-        return sizeof(sockaddr_in6_type);
-      }
-    default:
-      ec = asio::error::address_family_not_supported;
-      return addr_len;
-    }
-  }
-  catch (Platform::Exception^ e)
-  {
-    ec = asio::error_code(e->HResult,
-        asio::system_category());
-    return addr_len;
-  }
-}
-
-asio::error_code winrt_ssocket_service_base::do_set_option(
-    winrt_ssocket_service_base::base_implementation_type& impl,
-    int level, int optname, const void* optval,
-    std::size_t optlen, asio::error_code& ec)
-{
-  if (!is_open(impl))
-  {
-    ec = asio::error::bad_descriptor;
-    return ec;
-  }
-
-  try
-  {
-    if (level == ASIO_OS_DEF(SOL_SOCKET)
-        && optname == ASIO_OS_DEF(SO_KEEPALIVE))
-    {
-      if (optlen == sizeof(int))
-      {
-        int value = 0;
-        std::memcpy(&value, optval, optlen);
-        impl.socket_->Control->KeepAlive = !!value;
-        ec = asio::error_code();
-      }
-      else
-      {
-        ec = asio::error::invalid_argument;
-      }
-    }
-    else if (level == ASIO_OS_DEF(IPPROTO_TCP)
-        && optname == ASIO_OS_DEF(TCP_NODELAY))
-    {
-      if (optlen == sizeof(int))
-      {
-        int value = 0;
-        std::memcpy(&value, optval, optlen);
-        impl.socket_->Control->NoDelay = !!value;
-        ec = asio::error_code();
-      }
-      else
-      {
-        ec = asio::error::invalid_argument;
-      }
-    }
-    else
-    {
-      ec = asio::error::invalid_argument;
-    }
-  }
-  catch (Platform::Exception^ e)
-  {
-    ec = asio::error_code(e->HResult,
-        asio::system_category());
-  }
-
-  return ec;
-}
-
-void winrt_ssocket_service_base::do_get_option(
-    const winrt_ssocket_service_base::base_implementation_type& impl,
-    int level, int optname, void* optval,
-    std::size_t* optlen, asio::error_code& ec) const
-{
-  if (!is_open(impl))
-  {
-    ec = asio::error::bad_descriptor;
-    return;
-  }
-
-  try
-  {
-    if (level == ASIO_OS_DEF(SOL_SOCKET)
-        && optname == ASIO_OS_DEF(SO_KEEPALIVE))
-    {
-      if (*optlen >= sizeof(int))
-      {
-        int value = impl.socket_->Control->KeepAlive ? 1 : 0;
-        std::memcpy(optval, &value, sizeof(int));
-        *optlen = sizeof(int);
-        ec = asio::error_code();
-      }
-      else
-      {
-        ec = asio::error::invalid_argument;
-      }
-    }
-    else if (level == ASIO_OS_DEF(IPPROTO_TCP)
-        && optname == ASIO_OS_DEF(TCP_NODELAY))
-    {
-      if (*optlen >= sizeof(int))
-      {
-        int value = impl.socket_->Control->NoDelay ? 1 : 0;
-        std::memcpy(optval, &value, sizeof(int));
-        *optlen = sizeof(int);
-        ec = asio::error_code();
-      }
-      else
-      {
-        ec = asio::error::invalid_argument;
-      }
-    }
-    else
-    {
-      ec = asio::error::invalid_argument;
-    }
-  }
-  catch (Platform::Exception^ e)
-  {
-    ec = asio::error_code(e->HResult,
-        asio::system_category());
-  }
-}
-
-asio::error_code winrt_ssocket_service_base::do_connect(
-    winrt_ssocket_service_base::base_implementation_type& impl,
-    const void* addr, asio::error_code& ec)
-{
-  if (!is_open(impl))
-  {
-    ec = asio::error::bad_descriptor;
-    return ec;
-  }
-
-  char addr_string[max_addr_v6_str_len];
-  unsigned short port;
-  switch (reinterpret_cast<const socket_addr_type*>(addr)->sa_family)
-  {
-  case ASIO_OS_DEF(AF_INET):
-    socket_ops::inet_ntop(ASIO_OS_DEF(AF_INET),
-        &reinterpret_cast<const sockaddr_in4_type*>(addr)->sin_addr,
-        addr_string, sizeof(addr_string), 0, ec);
-    port = socket_ops::network_to_host_short(
-        reinterpret_cast<const sockaddr_in4_type*>(addr)->sin_port);
-    break;
-  case ASIO_OS_DEF(AF_INET6):
-    socket_ops::inet_ntop(ASIO_OS_DEF(AF_INET6),
-        &reinterpret_cast<const sockaddr_in6_type*>(addr)->sin6_addr,
-        addr_string, sizeof(addr_string), 0, ec);
-    port = socket_ops::network_to_host_short(
-        reinterpret_cast<const sockaddr_in6_type*>(addr)->sin6_port);
-    break;
-  default:
-    ec = asio::error::address_family_not_supported;
-    return ec;
-  }
-
-  if (!ec) try
-  {
-    async_manager_.sync(impl.socket_->ConnectAsync(
-          ref new Windows::Networking::HostName(
-            winrt_utils::string(addr_string)),
-          winrt_utils::string(port)), ec);
-  }
-  catch (Platform::Exception^ e)
-  {
-    ec = asio::error_code(e->HResult,
-        asio::system_category());
-  }
-
-  return ec;
-}
-
-void winrt_ssocket_service_base::start_connect_op(
-    winrt_ssocket_service_base::base_implementation_type& impl,
-    const void* addr, winrt_async_op<void>* op, bool is_continuation)
-{
-  if (!is_open(impl))
-  {
-    op->ec_ = asio::error::bad_descriptor;
-    io_context_.post_immediate_completion(op, is_continuation);
-    return;
-  }
-
-  char addr_string[max_addr_v6_str_len];
-  unsigned short port = 0;
-  switch (reinterpret_cast<const socket_addr_type*>(addr)->sa_family)
-  {
-  case ASIO_OS_DEF(AF_INET):
-    socket_ops::inet_ntop(ASIO_OS_DEF(AF_INET),
-        &reinterpret_cast<const sockaddr_in4_type*>(addr)->sin_addr,
-        addr_string, sizeof(addr_string), 0, op->ec_);
-    port = socket_ops::network_to_host_short(
-        reinterpret_cast<const sockaddr_in4_type*>(addr)->sin_port);
-    break;
-  case ASIO_OS_DEF(AF_INET6):
-    socket_ops::inet_ntop(ASIO_OS_DEF(AF_INET6),
-        &reinterpret_cast<const sockaddr_in6_type*>(addr)->sin6_addr,
-        addr_string, sizeof(addr_string), 0, op->ec_);
-    port = socket_ops::network_to_host_short(
-        reinterpret_cast<const sockaddr_in6_type*>(addr)->sin6_port);
-    break;
-  default:
-    op->ec_ = asio::error::address_family_not_supported;
-    break;
-  }
-
-  if (op->ec_)
-  {
-    io_context_.post_immediate_completion(op, is_continuation);
-    return;
-  }
-
-  try
-  {
-    async_manager_.async(impl.socket_->ConnectAsync(
-          ref new Windows::Networking::HostName(
-            winrt_utils::string(addr_string)),
-          winrt_utils::string(port)), op);
-  }
-  catch (Platform::Exception^ e)
-  {
-    op->ec_ = asio::error_code(
-        e->HResult, asio::system_category());
-    io_context_.post_immediate_completion(op, is_continuation);
-  }
-}
-
-std::size_t winrt_ssocket_service_base::do_send(
-    winrt_ssocket_service_base::base_implementation_type& impl,
-    const asio::const_buffer& data,
-    socket_base::message_flags flags, asio::error_code& ec)
-{
-  if (flags)
-  {
-    ec = asio::error::operation_not_supported;
-    return 0;
-  }
-
-  if (!is_open(impl))
-  {
-    ec = asio::error::bad_descriptor;
-    return 0;
-  }
-
-  try
-  {
-    buffer_sequence_adapter<asio::const_buffer,
-      asio::const_buffer> bufs(asio::buffer(data));
-
-    if (bufs.all_empty())
-    {
-      ec = asio::error_code();
-      return 0;
-    }
-
-    return async_manager_.sync(
-        impl.socket_->OutputStream->WriteAsync(bufs.buffers()[0]), ec);
-  }
-  catch (Platform::Exception^ e)
-  {
-    ec = asio::error_code(e->HResult,
-        asio::system_category());
-    return 0;
-  }
-}
-
-void winrt_ssocket_service_base::start_send_op(
-      winrt_ssocket_service_base::base_implementation_type& impl,
-      const asio::const_buffer& data, socket_base::message_flags flags,
-      winrt_async_op<unsigned int>* op, bool is_continuation)
-{
-  if (flags)
-  {
-    op->ec_ = asio::error::operation_not_supported;
-    io_context_.post_immediate_completion(op, is_continuation);
-    return;
-  }
-
-  if (!is_open(impl))
-  {
-    op->ec_ = asio::error::bad_descriptor;
-    io_context_.post_immediate_completion(op, is_continuation);
-    return;
-  }
-
-  try
-  {
-    buffer_sequence_adapter<asio::const_buffer,
-        asio::const_buffer> bufs(asio::buffer(data));
-
-    if (bufs.all_empty())
-    {
-      io_context_.post_immediate_completion(op, is_continuation);
-      return;
-    }
-
-    async_manager_.async(
-        impl.socket_->OutputStream->WriteAsync(bufs.buffers()[0]), op);
-  }
-  catch (Platform::Exception^ e)
-  {
-    op->ec_ = asio::error_code(e->HResult,
-        asio::system_category());
-    io_context_.post_immediate_completion(op, is_continuation);
-  }
-}
-
-std::size_t winrt_ssocket_service_base::do_receive(
-    winrt_ssocket_service_base::base_implementation_type& impl,
-    const asio::mutable_buffer& data,
-    socket_base::message_flags flags, asio::error_code& ec)
-{
-  if (flags)
-  {
-    ec = asio::error::operation_not_supported;
-    return 0;
-  }
-
-  if (!is_open(impl))
-  {
-    ec = asio::error::bad_descriptor;
-    return 0;
-  }
-
-  try
-  {
-    buffer_sequence_adapter<asio::mutable_buffer,
-        asio::mutable_buffer> bufs(asio::buffer(data));
-
-    if (bufs.all_empty())
-    {
-      ec = asio::error_code();
-      return 0;
-    }
-
-    async_manager_.sync(
-        impl.socket_->InputStream->ReadAsync(
-          bufs.buffers()[0], bufs.buffers()[0]->Capacity,
-          Windows::Storage::Streams::InputStreamOptions::Partial), ec);
-
-    std::size_t bytes_transferred = bufs.buffers()[0]->Length;
-    if (bytes_transferred == 0 && !ec)
-    {
-      ec = asio::error::eof;
-    }
-
-    return bytes_transferred;
-  }
-  catch (Platform::Exception^ e)
-  {
-    ec = asio::error_code(e->HResult,
-        asio::system_category());
-    return 0;
-  }
-}
-
-void winrt_ssocket_service_base::start_receive_op(
-      winrt_ssocket_service_base::base_implementation_type& impl,
-      const asio::mutable_buffer& data, socket_base::message_flags flags,
-      winrt_async_op<Windows::Storage::Streams::IBuffer^>* op,
-      bool is_continuation)
-{
-  if (flags)
-  {
-    op->ec_ = asio::error::operation_not_supported;
-    io_context_.post_immediate_completion(op, is_continuation);
-    return;
-  }
-
-  if (!is_open(impl))
-  {
-    op->ec_ = asio::error::bad_descriptor;
-    io_context_.post_immediate_completion(op, is_continuation);
-    return;
-  }
-
-  try
-  {
-    buffer_sequence_adapter<asio::mutable_buffer,
-        asio::mutable_buffer> bufs(asio::buffer(data));
-
-    if (bufs.all_empty())
-    {
-      io_context_.post_immediate_completion(op, is_continuation);
-      return;
-    }
-
-    async_manager_.async(
-        impl.socket_->InputStream->ReadAsync(
-          bufs.buffers()[0], bufs.buffers()[0]->Capacity,
-          Windows::Storage::Streams::InputStreamOptions::Partial), op);
-  }
-  catch (Platform::Exception^ e)
-  {
-    op->ec_ = asio::error_code(e->HResult,
-        asio::system_category());
-    io_context_.post_immediate_completion(op, is_continuation);
-  }
-}
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // defined(ASIO_WINDOWS_RUNTIME)
-
-#endif // ASIO_DETAIL_IMPL_WINRT_SSOCKET_SERVICE_BASE_IPP
diff --git a/lib/asio/detail/impl/winrt_timer_scheduler.hpp b/lib/asio/detail/impl/winrt_timer_scheduler.hpp
deleted file mode 100644
index 856378f..0000000
--- a/lib/asio/detail/impl/winrt_timer_scheduler.hpp
+++ /dev/null
@@ -1,92 +0,0 @@
-//
-// detail/impl/winrt_timer_scheduler.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_IMPL_WINRT_TIMER_SCHEDULER_HPP
-#define ASIO_DETAIL_IMPL_WINRT_TIMER_SCHEDULER_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-
-#if defined(ASIO_WINDOWS_RUNTIME)
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-template <typename Time_Traits>
-void winrt_timer_scheduler::add_timer_queue(timer_queue<Time_Traits>& queue)
-{
-  do_add_timer_queue(queue);
-}
-
-// Remove a timer queue from the reactor.
-template <typename Time_Traits>
-void winrt_timer_scheduler::remove_timer_queue(timer_queue<Time_Traits>& queue)
-{
-  do_remove_timer_queue(queue);
-}
-
-template <typename Time_Traits>
-void winrt_timer_scheduler::schedule_timer(timer_queue<Time_Traits>& queue,
-    const typename Time_Traits::time_type& time,
-    typename timer_queue<Time_Traits>::per_timer_data& timer, wait_op* op)
-{
-  asio::detail::mutex::scoped_lock lock(mutex_);
-
-  if (shutdown_)
-  {
-    io_context_.post_immediate_completion(op, false);
-    return;
-  }
-
-  bool earliest = queue.enqueue_timer(time, timer, op);
-  io_context_.work_started();
-  if (earliest)
-    event_.signal(lock);
-}
-
-template <typename Time_Traits>
-std::size_t winrt_timer_scheduler::cancel_timer(timer_queue<Time_Traits>& queue,
-    typename timer_queue<Time_Traits>::per_timer_data& timer,
-    std::size_t max_cancelled)
-{
-  asio::detail::mutex::scoped_lock lock(mutex_);
-  op_queue<operation> ops;
-  std::size_t n = queue.cancel_timer(timer, ops, max_cancelled);
-  lock.unlock();
-  io_context_.post_deferred_completions(ops);
-  return n;
-}
-
-template <typename Time_Traits>
-void winrt_timer_scheduler::move_timer(timer_queue<Time_Traits>& queue,
-    typename timer_queue<Time_Traits>::per_timer_data& to,
-    typename timer_queue<Time_Traits>::per_timer_data& from)
-{
-  asio::detail::mutex::scoped_lock lock(mutex_);
-  op_queue<operation> ops;
-  queue.cancel_timer(to, ops);
-  queue.move_timer(to, from);
-  lock.unlock();
-  scheduler_.post_deferred_completions(ops);
-}
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // defined(ASIO_WINDOWS_RUNTIME)
-
-#endif // ASIO_DETAIL_IMPL_WINRT_TIMER_SCHEDULER_HPP
diff --git a/lib/asio/detail/impl/winrt_timer_scheduler.ipp b/lib/asio/detail/impl/winrt_timer_scheduler.ipp
deleted file mode 100644
index ef21399..0000000
--- a/lib/asio/detail/impl/winrt_timer_scheduler.ipp
+++ /dev/null
@@ -1,122 +0,0 @@
-//
-// detail/impl/winrt_timer_scheduler.ipp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_IMPL_WINRT_TIMER_SCHEDULER_IPP
-#define ASIO_DETAIL_IMPL_WINRT_TIMER_SCHEDULER_IPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-
-#if defined(ASIO_WINDOWS_RUNTIME)
-
-#include "asio/detail/bind_handler.hpp"
-#include "asio/detail/winrt_timer_scheduler.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-winrt_timer_scheduler::winrt_timer_scheduler(
-    asio::io_context& io_context)
-  : asio::detail::service_base<winrt_timer_scheduler>(io_context),
-    io_context_(use_service<io_context_impl>(io_context)),
-    mutex_(),
-    event_(),
-    timer_queues_(),
-    thread_(0),
-    stop_thread_(false),
-    shutdown_(false)
-{
-  thread_ = new asio::detail::thread(
-      bind_handler(&winrt_timer_scheduler::call_run_thread, this));
-}
-
-winrt_timer_scheduler::~winrt_timer_scheduler()
-{
-  shutdown();
-}
-
-void winrt_timer_scheduler::shutdown()
-{
-  asio::detail::mutex::scoped_lock lock(mutex_);
-  shutdown_ = true;
-  stop_thread_ = true;
-  event_.signal(lock);
-  lock.unlock();
-
-  if (thread_)
-  {
-    thread_->join();
-    delete thread_;
-    thread_ = 0;
-  }
-
-  op_queue<operation> ops;
-  timer_queues_.get_all_timers(ops);
-  io_context_.abandon_operations(ops);
-}
-
-void winrt_timer_scheduler::notify_fork(asio::io_context::fork_event)
-{
-}
-
-void winrt_timer_scheduler::init_task()
-{
-}
-
-void winrt_timer_scheduler::run_thread()
-{
-  asio::detail::mutex::scoped_lock lock(mutex_);
-  while (!stop_thread_)
-  {
-    const long max_wait_duration = 5 * 60 * 1000000;
-    long wait_duration = timer_queues_.wait_duration_usec(max_wait_duration);
-    event_.wait_for_usec(lock, wait_duration);
-    event_.clear(lock);
-    op_queue<operation> ops;
-    timer_queues_.get_ready_timers(ops);
-    if (!ops.empty())
-    {
-      lock.unlock();
-      io_context_.post_deferred_completions(ops);
-      lock.lock();
-    }
-  }
-}
-
-void winrt_timer_scheduler::call_run_thread(winrt_timer_scheduler* scheduler)
-{
-  scheduler->run_thread();
-}
-
-void winrt_timer_scheduler::do_add_timer_queue(timer_queue_base& queue)
-{
-  mutex::scoped_lock lock(mutex_);
-  timer_queues_.insert(&queue);
-}
-
-void winrt_timer_scheduler::do_remove_timer_queue(timer_queue_base& queue)
-{
-  mutex::scoped_lock lock(mutex_);
-  timer_queues_.erase(&queue);
-}
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // defined(ASIO_WINDOWS_RUNTIME)
-
-#endif // ASIO_DETAIL_IMPL_WINRT_TIMER_SCHEDULER_IPP
diff --git a/lib/asio/detail/impl/winsock_init.ipp b/lib/asio/detail/impl/winsock_init.ipp
deleted file mode 100644
index da4b0c0..0000000
--- a/lib/asio/detail/impl/winsock_init.ipp
+++ /dev/null
@@ -1,82 +0,0 @@
-//
-// detail/impl/winsock_init.ipp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_IMPL_WINSOCK_INIT_IPP
-#define ASIO_DETAIL_IMPL_WINSOCK_INIT_IPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-
-#if defined(ASIO_WINDOWS) || defined(__CYGWIN__)
-
-#include "asio/detail/socket_types.hpp"
-#include "asio/detail/winsock_init.hpp"
-#include "asio/detail/throw_error.hpp"
-#include "asio/error.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-void winsock_init_base::startup(data& d,
-    unsigned char major, unsigned char minor)
-{
-  if (::InterlockedIncrement(&d.init_count_) == 1)
-  {
-    WSADATA wsa_data;
-    long result = ::WSAStartup(MAKEWORD(major, minor), &wsa_data);
-    ::InterlockedExchange(&d.result_, result);
-  }
-}
-
-void winsock_init_base::manual_startup(data& d)
-{
-  if (::InterlockedIncrement(&d.init_count_) == 1)
-  {
-    ::InterlockedExchange(&d.result_, 0);
-  }
-}
-
-void winsock_init_base::cleanup(data& d)
-{
-  if (::InterlockedDecrement(&d.init_count_) == 0)
-  {
-    ::WSACleanup();
-  }
-}
-
-void winsock_init_base::manual_cleanup(data& d)
-{
-  ::InterlockedDecrement(&d.init_count_);
-}
-
-void winsock_init_base::throw_on_error(data& d)
-{
-  long result = ::InterlockedExchangeAdd(&d.result_, 0);
-  if (result != 0)
-  {
-    asio::error_code ec(result,
-        asio::error::get_system_category());
-    asio::detail::throw_error(ec, "winsock");
-  }
-}
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // defined(ASIO_WINDOWS) || defined(__CYGWIN__)
-
-#endif // ASIO_DETAIL_IMPL_WINSOCK_INIT_IPP
diff --git a/lib/asio/detail/io_control.hpp b/lib/asio/detail/io_control.hpp
deleted file mode 100644
index 12f35e0..0000000
--- a/lib/asio/detail/io_control.hpp
+++ /dev/null
@@ -1,84 +0,0 @@
-//
-// detail/io_control.hpp
-// ~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_IO_CONTROL_HPP
-#define ASIO_DETAIL_IO_CONTROL_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-#include <cstddef>
-#include "asio/detail/socket_types.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-namespace io_control {
-
-// I/O control command for getting number of bytes available.
-class bytes_readable
-{
-public:
-  // Default constructor.
-  bytes_readable()
-    : value_(0)
-  {
-  }
-
-  // Construct with a specific command value.
-  bytes_readable(std::size_t value)
-    : value_(static_cast<detail::ioctl_arg_type>(value))
-  {
-  }
-
-  // Get the name of the IO control command.
-  int name() const
-  {
-    return static_cast<int>(ASIO_OS_DEF(FIONREAD));
-  }
-
-  // Set the value of the I/O control command.
-  void set(std::size_t value)
-  {
-    value_ = static_cast<detail::ioctl_arg_type>(value);
-  }
-
-  // Get the current value of the I/O control command.
-  std::size_t get() const
-  {
-    return static_cast<std::size_t>(value_);
-  }
-
-  // Get the address of the command data.
-  detail::ioctl_arg_type* data()
-  {
-    return &value_;
-  }
-
-  // Get the address of the command data.
-  const detail::ioctl_arg_type* data() const
-  {
-    return &value_;
-  }
-
-private:
-  detail::ioctl_arg_type value_;
-};
-
-} // namespace io_control
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // ASIO_DETAIL_IO_CONTROL_HPP
diff --git a/lib/asio/detail/is_buffer_sequence.hpp b/lib/asio/detail/is_buffer_sequence.hpp
deleted file mode 100644
index 42ad0eb..0000000
--- a/lib/asio/detail/is_buffer_sequence.hpp
+++ /dev/null
@@ -1,239 +0,0 @@
-//
-// detail/is_buffer_sequence.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_IS_BUFFER_SEQUENCE_HPP
-#define ASIO_DETAIL_IS_BUFFER_SEQUENCE_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-#include "asio/detail/type_traits.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-
-class mutable_buffer;
-class const_buffer;
-
-namespace detail {
-
-struct buffer_sequence_memfns_base
-{
-  void begin();
-  void end();
-  void size();
-  void max_size();
-  void capacity();
-  void data();
-  void prepare();
-  void commit();
-  void consume();
-};
-
-template <typename T>
-struct buffer_sequence_memfns_derived
-  : T, buffer_sequence_memfns_base
-{
-};
-
-template <typename T, T>
-struct buffer_sequence_memfns_check
-{
-};
-
-template <typename>
-char (&begin_memfn_helper(...))[2];
-
-template <typename T>
-char begin_memfn_helper(
-    buffer_sequence_memfns_check<
-      void (buffer_sequence_memfns_base::*)(),
-      &buffer_sequence_memfns_derived<T>::begin>*);
-
-template <typename>
-char (&end_memfn_helper(...))[2];
-
-template <typename T>
-char end_memfn_helper(
-    buffer_sequence_memfns_check<
-      void (buffer_sequence_memfns_base::*)(),
-      &buffer_sequence_memfns_derived<T>::end>*);
-
-template <typename>
-char (&size_memfn_helper(...))[2];
-
-template <typename T>
-char size_memfn_helper(
-    buffer_sequence_memfns_check<
-      void (buffer_sequence_memfns_base::*)(),
-      &buffer_sequence_memfns_derived<T>::size>*);
-
-template <typename>
-char (&max_size_memfn_helper(...))[2];
-
-template <typename T>
-char max_size_memfn_helper(
-    buffer_sequence_memfns_check<
-      void (buffer_sequence_memfns_base::*)(),
-      &buffer_sequence_memfns_derived<T>::max_size>*);
-
-template <typename>
-char (&capacity_memfn_helper(...))[2];
-
-template <typename T>
-char capacity_memfn_helper(
-    buffer_sequence_memfns_check<
-      void (buffer_sequence_memfns_base::*)(),
-      &buffer_sequence_memfns_derived<T>::capacity>*);
-
-template <typename>
-char (&data_memfn_helper(...))[2];
-
-template <typename T>
-char data_memfn_helper(
-    buffer_sequence_memfns_check<
-      void (buffer_sequence_memfns_base::*)(),
-      &buffer_sequence_memfns_derived<T>::data>*);
-
-template <typename>
-char (&prepare_memfn_helper(...))[2];
-
-template <typename T>
-char prepare_memfn_helper(
-    buffer_sequence_memfns_check<
-      void (buffer_sequence_memfns_base::*)(),
-      &buffer_sequence_memfns_derived<T>::prepare>*);
-
-template <typename>
-char (&commit_memfn_helper(...))[2];
-
-template <typename T>
-char commit_memfn_helper(
-    buffer_sequence_memfns_check<
-      void (buffer_sequence_memfns_base::*)(),
-      &buffer_sequence_memfns_derived<T>::commit>*);
-
-template <typename>
-char (&consume_memfn_helper(...))[2];
-
-template <typename T>
-char consume_memfn_helper(
-    buffer_sequence_memfns_check<
-      void (buffer_sequence_memfns_base::*)(),
-      &buffer_sequence_memfns_derived<T>::consume>*);
-
-template <typename, typename>
-char (&buffer_element_type_helper(...))[2];
-
-#if defined(ASIO_HAS_DECL_TYPE)
-
-template <typename T, typename Buffer>
-char buffer_element_type_helper(T* t,
-    typename enable_if<is_convertible<
-      decltype(*buffer_sequence_begin(*t)),
-        Buffer>::value>::type*);
-
-#else // defined(ASIO_HAS_DECL_TYPE)
-
-template <typename T, typename Buffer>
-char buffer_element_type_helper(
-    typename T::const_iterator*,
-    typename enable_if<is_convertible<
-      typename T::value_type, Buffer>::value>::type*);
-
-#endif // defined(ASIO_HAS_DECL_TYPE)
-
-template <typename>
-char (&const_buffers_type_typedef_helper(...))[2];
-
-template <typename T>
-char const_buffers_type_typedef_helper(
-    typename T::const_buffers_type*);
-
-template <typename>
-char (&mutable_buffers_type_typedef_helper(...))[2];
-
-template <typename T>
-char mutable_buffers_type_typedef_helper(
-    typename T::mutable_buffers_type*);
-
-template <typename T, typename Buffer>
-struct is_buffer_sequence_class
-  : integral_constant<bool,
-      sizeof(begin_memfn_helper<T>(0)) != 1 &&
-      sizeof(end_memfn_helper<T>(0)) != 1 &&
-      sizeof(buffer_element_type_helper<T, Buffer>(0, 0)) == 1>
-{
-};
-
-template <typename T, typename Buffer>
-struct is_buffer_sequence
-  : conditional<is_class<T>::value,
-      is_buffer_sequence_class<T, Buffer>,
-      false_type>::type
-{
-};
-
-template <>
-struct is_buffer_sequence<mutable_buffer, mutable_buffer>
-  : true_type
-{
-};
-
-template <>
-struct is_buffer_sequence<mutable_buffer, const_buffer>
-  : true_type
-{
-};
-
-template <>
-struct is_buffer_sequence<const_buffer, const_buffer>
-  : true_type
-{
-};
-
-template <>
-struct is_buffer_sequence<const_buffer, mutable_buffer>
-  : false_type
-{
-};
-
-template <typename T>
-struct is_dynamic_buffer_class
-  : integral_constant<bool,
-      sizeof(size_memfn_helper<T>(0)) != 1 &&
-      sizeof(max_size_memfn_helper<T>(0)) != 1 &&
-      sizeof(capacity_memfn_helper<T>(0)) != 1 &&
-      sizeof(data_memfn_helper<T>(0)) != 1 &&
-      sizeof(consume_memfn_helper<T>(0)) != 1 &&
-      sizeof(prepare_memfn_helper<T>(0)) != 1 &&
-      sizeof(commit_memfn_helper<T>(0)) != 1 &&
-      sizeof(const_buffers_type_typedef_helper<T>(0)) == 1 &&
-      sizeof(mutable_buffers_type_typedef_helper<T>(0)) == 1>
-{
-};
-
-template <typename T>
-struct is_dynamic_buffer
-  : conditional<is_class<T>::value,
-      is_dynamic_buffer_class<T>,
-      false_type>::type
-{
-};
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // ASIO_DETAIL_IS_BUFFER_SEQUENCE_HPP
diff --git a/lib/asio/detail/is_executor.hpp b/lib/asio/detail/is_executor.hpp
deleted file mode 100644
index 4584dd0..0000000
--- a/lib/asio/detail/is_executor.hpp
+++ /dev/null
@@ -1,126 +0,0 @@
-//
-// detail/is_executor.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_IS_EXECUTOR_HPP
-#define ASIO_DETAIL_IS_EXECUTOR_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-#include "asio/detail/type_traits.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-struct executor_memfns_base
-{
-  void context();
-  void on_work_started();
-  void on_work_finished();
-  void dispatch();
-  void post();
-  void defer();
-};
-
-template <typename T>
-struct executor_memfns_derived
-  : T, executor_memfns_base
-{
-};
-
-template <typename T, T>
-struct executor_memfns_check
-{
-};
-
-template <typename>
-char (&context_memfn_helper(...))[2];
-
-template <typename T>
-char context_memfn_helper(
-    executor_memfns_check<
-      void (executor_memfns_base::*)(),
-      &executor_memfns_derived<T>::context>*);
-
-template <typename>
-char (&on_work_started_memfn_helper(...))[2];
-
-template <typename T>
-char on_work_started_memfn_helper(
-    executor_memfns_check<
-      void (executor_memfns_base::*)(),
-      &executor_memfns_derived<T>::on_work_started>*);
-
-template <typename>
-char (&on_work_finished_memfn_helper(...))[2];
-
-template <typename T>
-char on_work_finished_memfn_helper(
-    executor_memfns_check<
-      void (executor_memfns_base::*)(),
-      &executor_memfns_derived<T>::on_work_finished>*);
-
-template <typename>
-char (&dispatch_memfn_helper(...))[2];
-
-template <typename T>
-char dispatch_memfn_helper(
-    executor_memfns_check<
-      void (executor_memfns_base::*)(),
-      &executor_memfns_derived<T>::dispatch>*);
-
-template <typename>
-char (&post_memfn_helper(...))[2];
-
-template <typename T>
-char post_memfn_helper(
-    executor_memfns_check<
-      void (executor_memfns_base::*)(),
-      &executor_memfns_derived<T>::post>*);
-
-template <typename>
-char (&defer_memfn_helper(...))[2];
-
-template <typename T>
-char defer_memfn_helper(
-    executor_memfns_check<
-      void (executor_memfns_base::*)(),
-      &executor_memfns_derived<T>::defer>*);
-
-template <typename T>
-struct is_executor_class
-  : integral_constant<bool,
-      sizeof(context_memfn_helper<T>(0)) != 1 &&
-      sizeof(on_work_started_memfn_helper<T>(0)) != 1 &&
-      sizeof(on_work_finished_memfn_helper<T>(0)) != 1 &&
-      sizeof(dispatch_memfn_helper<T>(0)) != 1 &&
-      sizeof(post_memfn_helper<T>(0)) != 1 &&
-      sizeof(defer_memfn_helper<T>(0)) != 1>
-{
-};
-
-template <typename T>
-struct is_executor
-  : conditional<is_class<T>::value,
-      is_executor_class<T>,
-      false_type>::type
-{
-};
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // ASIO_DETAIL_IS_EXECUTOR_HPP
diff --git a/lib/asio/detail/keyword_tss_ptr.hpp b/lib/asio/detail/keyword_tss_ptr.hpp
deleted file mode 100644
index 2ae651a..0000000
--- a/lib/asio/detail/keyword_tss_ptr.hpp
+++ /dev/null
@@ -1,70 +0,0 @@
-//
-// detail/keyword_tss_ptr.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_KEYWORD_TSS_PTR_HPP
-#define ASIO_DETAIL_KEYWORD_TSS_PTR_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-
-#if defined(ASIO_HAS_THREAD_KEYWORD_EXTENSION)
-
-#include "asio/detail/noncopyable.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-template <typename T>
-class keyword_tss_ptr
-  : private noncopyable
-{
-public:
-  // Constructor.
-  keyword_tss_ptr()
-  {
-  }
-
-  // Destructor.
-  ~keyword_tss_ptr()
-  {
-  }
-
-  // Get the value.
-  operator T*() const
-  {
-    return value_;
-  }
-
-  // Set the value.
-  void operator=(T* value)
-  {
-    value_ = value;
-  }
-
-private:
-  static ASIO_THREAD_KEYWORD T* value_;
-};
-
-template <typename T>
-ASIO_THREAD_KEYWORD T* keyword_tss_ptr<T>::value_;
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // defined(ASIO_HAS_THREAD_KEYWORD_EXTENSION)
-
-#endif // ASIO_DETAIL_KEYWORD_TSS_PTR_HPP
diff --git a/lib/asio/detail/kqueue_reactor.hpp b/lib/asio/detail/kqueue_reactor.hpp
deleted file mode 100644
index 43cb9f9..0000000
--- a/lib/asio/detail/kqueue_reactor.hpp
+++ /dev/null
@@ -1,242 +0,0 @@
-//
-// detail/kqueue_reactor.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-// Copyright (c) 2005 Stefan Arentz (stefan at soze dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_KQUEUE_REACTOR_HPP
-#define ASIO_DETAIL_KQUEUE_REACTOR_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-
-#if defined(ASIO_HAS_KQUEUE)
-
-#include <cstddef>
-#include <sys/types.h>
-#include <sys/event.h>
-#include <sys/time.h>
-#include "asio/detail/limits.hpp"
-#include "asio/detail/mutex.hpp"
-#include "asio/detail/object_pool.hpp"
-#include "asio/detail/op_queue.hpp"
-#include "asio/detail/reactor_op.hpp"
-#include "asio/detail/select_interrupter.hpp"
-#include "asio/detail/socket_types.hpp"
-#include "asio/detail/timer_queue_base.hpp"
-#include "asio/detail/timer_queue_set.hpp"
-#include "asio/detail/wait_op.hpp"
-#include "asio/error.hpp"
-#include "asio/execution_context.hpp"
-
-// Older versions of Mac OS X may not define EV_OOBAND.
-#if !defined(EV_OOBAND)
-# define EV_OOBAND EV_FLAG1
-#endif // !defined(EV_OOBAND)
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-class scheduler;
-
-class kqueue_reactor
-  : public execution_context_service_base<kqueue_reactor>
-{
-private:
-  // The mutex type used by this reactor.
-  typedef conditionally_enabled_mutex mutex;
-
-public:
-  enum op_types { read_op = 0, write_op = 1,
-    connect_op = 1, except_op = 2, max_ops = 3 };
-
-  // Per-descriptor queues.
-  struct descriptor_state
-  {
-    descriptor_state(bool locking) : mutex_(locking) {}
-
-    friend class kqueue_reactor;
-    friend class object_pool_access;
-
-    descriptor_state* next_;
-    descriptor_state* prev_;
-
-    mutex mutex_;
-    int descriptor_;
-    int num_kevents_; // 1 == read only, 2 == read and write
-    op_queue<reactor_op> op_queue_[max_ops];
-    bool shutdown_;
-  };
-
-  // Per-descriptor data.
-  typedef descriptor_state* per_descriptor_data;
-
-  // Constructor.
-  ASIO_DECL kqueue_reactor(asio::execution_context& ctx);
-
-  // Destructor.
-  ASIO_DECL ~kqueue_reactor();
-
-  // Destroy all user-defined handler objects owned by the service.
-  ASIO_DECL void shutdown();
-
-  // Recreate internal descriptors following a fork.
-  ASIO_DECL void notify_fork(
-      asio::execution_context::fork_event fork_ev);
-
-  // Initialise the task.
-  ASIO_DECL void init_task();
-
-  // Register a socket with the reactor. Returns 0 on success, system error
-  // code on failure.
-  ASIO_DECL int register_descriptor(socket_type descriptor,
-      per_descriptor_data& descriptor_data);
-
-  // Register a descriptor with an associated single operation. Returns 0 on
-  // success, system error code on failure.
-  ASIO_DECL int register_internal_descriptor(
-      int op_type, socket_type descriptor,
-      per_descriptor_data& descriptor_data, reactor_op* op);
-
-  // Move descriptor registration from one descriptor_data object to another.
-  ASIO_DECL void move_descriptor(socket_type descriptor,
-      per_descriptor_data& target_descriptor_data,
-      per_descriptor_data& source_descriptor_data);
-
-  // Post a reactor operation for immediate completion.
-  void post_immediate_completion(reactor_op* op, bool is_continuation)
-  {
-    scheduler_.post_immediate_completion(op, is_continuation);
-  }
-
-  // Start a new operation. The reactor operation will be performed when the
-  // given descriptor is flagged as ready, or an error has occurred.
-  ASIO_DECL void start_op(int op_type, socket_type descriptor,
-      per_descriptor_data& descriptor_data, reactor_op* op,
-      bool is_continuation, bool allow_speculative);
-
-  // Cancel all operations associated with the given descriptor. The
-  // handlers associated with the descriptor will be invoked with the
-  // operation_aborted error.
-  ASIO_DECL void cancel_ops(socket_type descriptor,
-      per_descriptor_data& descriptor_data);
-
-  // Cancel any operations that are running against the descriptor and remove
-  // its registration from the reactor. The reactor resources associated with
-  // the descriptor must be released by calling cleanup_descriptor_data.
-  ASIO_DECL void deregister_descriptor(socket_type descriptor,
-      per_descriptor_data& descriptor_data, bool closing);
-
-  // Remove the descriptor's registration from the reactor. The reactor
-  // resources associated with the descriptor must be released by calling
-  // cleanup_descriptor_data.
-  ASIO_DECL void deregister_internal_descriptor(
-      socket_type descriptor, per_descriptor_data& descriptor_data);
-
-  // Perform any post-deregistration cleanup tasks associated with the
-  // descriptor data.
-  ASIO_DECL void cleanup_descriptor_data(
-      per_descriptor_data& descriptor_data);
-
-  // Add a new timer queue to the reactor.
-  template <typename Time_Traits>
-  void add_timer_queue(timer_queue<Time_Traits>& queue);
-
-  // Remove a timer queue from the reactor.
-  template <typename Time_Traits>
-  void remove_timer_queue(timer_queue<Time_Traits>& queue);
-
-  // Schedule a new operation in the given timer queue to expire at the
-  // specified absolute time.
-  template <typename Time_Traits>
-  void schedule_timer(timer_queue<Time_Traits>& queue,
-      const typename Time_Traits::time_type& time,
-      typename timer_queue<Time_Traits>::per_timer_data& timer, wait_op* op);
-
-  // Cancel the timer operations associated with the given token. Returns the
-  // number of operations that have been posted or dispatched.
-  template <typename Time_Traits>
-  std::size_t cancel_timer(timer_queue<Time_Traits>& queue,
-      typename timer_queue<Time_Traits>::per_timer_data& timer,
-      std::size_t max_cancelled = (std::numeric_limits<std::size_t>::max)());
-
-  // Move the timer operations associated with the given timer.
-  template <typename Time_Traits>
-  void move_timer(timer_queue<Time_Traits>& queue,
-      typename timer_queue<Time_Traits>::per_timer_data& target,
-      typename timer_queue<Time_Traits>::per_timer_data& source);
-
-  // Run the kqueue loop.
-  ASIO_DECL void run(long usec, op_queue<operation>& ops);
-
-  // Interrupt the kqueue loop.
-  ASIO_DECL void interrupt();
-
-private:
-  // Create the kqueue file descriptor. Throws an exception if the descriptor
-  // cannot be created.
-  ASIO_DECL static int do_kqueue_create();
-
-  // Allocate a new descriptor state object.
-  ASIO_DECL descriptor_state* allocate_descriptor_state();
-
-  // Free an existing descriptor state object.
-  ASIO_DECL void free_descriptor_state(descriptor_state* s);
-
-  // Helper function to add a new timer queue.
-  ASIO_DECL void do_add_timer_queue(timer_queue_base& queue);
-
-  // Helper function to remove a timer queue.
-  ASIO_DECL void do_remove_timer_queue(timer_queue_base& queue);
-
-  // Get the timeout value for the kevent call.
-  ASIO_DECL timespec* get_timeout(long usec, timespec& ts);
-
-  // The scheduler used to post completions.
-  scheduler& scheduler_;
-
-  // Mutex to protect access to internal data.
-  mutex mutex_;
-
-  // The kqueue file descriptor.
-  int kqueue_fd_;
-
-  // The interrupter is used to break a blocking kevent call.
-  select_interrupter interrupter_;
-
-  // The timer queues.
-  timer_queue_set timer_queues_;
-
-  // Whether the service has been shut down.
-  bool shutdown_;
-
-  // Mutex to protect access to the registered descriptors.
-  mutex registered_descriptors_mutex_;
-
-  // Keep track of all registered descriptors.
-  object_pool<descriptor_state> registered_descriptors_;
-};
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#include "asio/detail/impl/kqueue_reactor.hpp"
-#if defined(ASIO_HEADER_ONLY)
-# include "asio/detail/impl/kqueue_reactor.ipp"
-#endif // defined(ASIO_HEADER_ONLY)
-
-#endif // defined(ASIO_HAS_KQUEUE)
-
-#endif // ASIO_DETAIL_KQUEUE_REACTOR_HPP
diff --git a/lib/asio/detail/limits.hpp b/lib/asio/detail/limits.hpp
deleted file mode 100644
index d32470d..0000000
--- a/lib/asio/detail/limits.hpp
+++ /dev/null
@@ -1,26 +0,0 @@
-//
-// detail/limits.hpp
-// ~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2011 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_LIMITS_HPP
-#define ASIO_DETAIL_LIMITS_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-
-#if defined(ASIO_HAS_BOOST_LIMITS)
-# include <boost/limits.hpp>
-#else // defined(ASIO_HAS_BOOST_LIMITS)
-# include <limits>
-#endif // defined(ASIO_HAS_BOOST_LIMITS)
-
-#endif // ASIO_DETAIL_LIMITS_HPP
diff --git a/lib/asio/detail/local_free_on_block_exit.hpp b/lib/asio/detail/local_free_on_block_exit.hpp
deleted file mode 100644
index eba6b77..0000000
--- a/lib/asio/detail/local_free_on_block_exit.hpp
+++ /dev/null
@@ -1,59 +0,0 @@
-//
-// detail/local_free_on_block_exit.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_LOCAL_FREE_ON_BLOCK_EXIT_HPP
-#define ASIO_DETAIL_LOCAL_FREE_ON_BLOCK_EXIT_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-
-#if defined(ASIO_WINDOWS) || defined(__CYGWIN__)
-#if !defined(ASIO_WINDOWS_APP)
-
-#include "asio/detail/noncopyable.hpp"
-#include "asio/detail/socket_types.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-class local_free_on_block_exit
-  : private noncopyable
-{
-public:
-  // Constructor blocks all signals for the calling thread.
-  explicit local_free_on_block_exit(void* p)
-    : p_(p)
-  {
-  }
-
-  // Destructor restores the previous signal mask.
-  ~local_free_on_block_exit()
-  {
-    ::LocalFree(p_);
-  }
-
-private:
-  void* p_;
-};
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // !defined(ASIO_WINDOWS_APP)
-#endif // defined(ASIO_WINDOWS) || defined(__CYGWIN__)
-
-#endif // ASIO_DETAIL_LOCAL_FREE_ON_BLOCK_EXIT_HPP
diff --git a/lib/asio/detail/macos_fenced_block.hpp b/lib/asio/detail/macos_fenced_block.hpp
deleted file mode 100644
index bbac270..0000000
--- a/lib/asio/detail/macos_fenced_block.hpp
+++ /dev/null
@@ -1,62 +0,0 @@
-//
-// detail/macos_fenced_block.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_MACOS_FENCED_BLOCK_HPP
-#define ASIO_DETAIL_MACOS_FENCED_BLOCK_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-
-#if defined(__MACH__) && defined(__APPLE__)
-
-#include <libkern/OSAtomic.h>
-#include "asio/detail/noncopyable.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-class macos_fenced_block
-  : private noncopyable
-{
-public:
-  enum half_t { half };
-  enum full_t { full };
-
-  // Constructor for a half fenced block.
-  explicit macos_fenced_block(half_t)
-  {
-  }
-
-  // Constructor for a full fenced block.
-  explicit macos_fenced_block(full_t)
-  {
-    OSMemoryBarrier();
-  }
-
-  // Destructor.
-  ~macos_fenced_block()
-  {
-    OSMemoryBarrier();
-  }
-};
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // defined(__MACH__) && defined(__APPLE__)
-
-#endif // ASIO_DETAIL_MACOS_FENCED_BLOCK_HPP
diff --git a/lib/asio/detail/memory.hpp b/lib/asio/detail/memory.hpp
deleted file mode 100644
index b1ec497..0000000
--- a/lib/asio/detail/memory.hpp
+++ /dev/null
@@ -1,70 +0,0 @@
-//
-// detail/memory.hpp
-// ~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_MEMORY_HPP
-#define ASIO_DETAIL_MEMORY_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-#include <memory>
-
-#if !defined(ASIO_HAS_STD_SHARED_PTR)
-# include <boost/shared_ptr.hpp>
-# include <boost/weak_ptr.hpp>
-#endif // !defined(ASIO_HAS_STD_SHARED_PTR)
-
-#if !defined(ASIO_HAS_STD_ADDRESSOF)
-# include <boost/utility/addressof.hpp>
-#endif // !defined(ASIO_HAS_STD_ADDRESSOF)
-
-namespace asio {
-namespace detail {
-
-#if defined(ASIO_HAS_STD_SHARED_PTR)
-using std::shared_ptr;
-using std::weak_ptr;
-#else // defined(ASIO_HAS_STD_SHARED_PTR)
-using boost::shared_ptr;
-using boost::weak_ptr;
-#endif // defined(ASIO_HAS_STD_SHARED_PTR)
-
-#if defined(ASIO_HAS_STD_ADDRESSOF)
-using std::addressof;
-#else // defined(ASIO_HAS_STD_ADDRESSOF)
-using boost::addressof;
-#endif // defined(ASIO_HAS_STD_ADDRESSOF)
-
-} // namespace detail
-
-#if defined(ASIO_HAS_CXX11_ALLOCATORS)
-using std::allocator_arg_t;
-# define ASIO_USES_ALLOCATOR(t) \
-  namespace std { \
-    template <typename Allocator> \
-    struct uses_allocator<t, Allocator> : true_type {}; \
-  } \
-  /**/
-# define ASIO_REBIND_ALLOC(alloc, t) \
-  typename std::allocator_traits<alloc>::template rebind_alloc<t>
-  /**/
-#else // defined(ASIO_HAS_CXX11_ALLOCATORS)
-struct allocator_arg_t {};
-# define ASIO_USES_ALLOCATOR(t)
-# define ASIO_REBIND_ALLOC(alloc, t) \
-  typename alloc::template rebind<t>::other
-  /**/
-#endif // defined(ASIO_HAS_CXX11_ALLOCATORS)
-
-} // namespace asio
-
-#endif // ASIO_DETAIL_MEMORY_HPP
diff --git a/lib/asio/detail/mutex.hpp b/lib/asio/detail/mutex.hpp
deleted file mode 100644
index 2f8f0b1..0000000
--- a/lib/asio/detail/mutex.hpp
+++ /dev/null
@@ -1,48 +0,0 @@
-//
-// detail/mutex.hpp
-// ~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_MUTEX_HPP
-#define ASIO_DETAIL_MUTEX_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-
-#if !defined(ASIO_HAS_THREADS)
-# include "asio/detail/null_mutex.hpp"
-#elif defined(ASIO_WINDOWS)
-# include "asio/detail/win_mutex.hpp"
-#elif defined(ASIO_HAS_PTHREADS)
-# include "asio/detail/posix_mutex.hpp"
-#elif defined(ASIO_HAS_STD_MUTEX_AND_CONDVAR)
-# include "asio/detail/std_mutex.hpp"
-#else
-# error Only Windows, POSIX and std::mutex are supported!
-#endif
-
-namespace asio {
-namespace detail {
-
-#if !defined(ASIO_HAS_THREADS)
-typedef null_mutex mutex;
-#elif defined(ASIO_WINDOWS)
-typedef win_mutex mutex;
-#elif defined(ASIO_HAS_PTHREADS)
-typedef posix_mutex mutex;
-#elif defined(ASIO_HAS_STD_MUTEX_AND_CONDVAR)
-typedef std_mutex mutex;
-#endif
-
-} // namespace detail
-} // namespace asio
-
-#endif // ASIO_DETAIL_MUTEX_HPP
diff --git a/lib/asio/detail/noncopyable.hpp b/lib/asio/detail/noncopyable.hpp
deleted file mode 100644
index 0c038e1..0000000
--- a/lib/asio/detail/noncopyable.hpp
+++ /dev/null
@@ -1,43 +0,0 @@
-//
-// detail/noncopyable.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_NONCOPYABLE_HPP
-#define ASIO_DETAIL_NONCOPYABLE_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-class noncopyable
-{
-protected:
-  noncopyable() {}
-  ~noncopyable() {}
-private:
-  noncopyable(const noncopyable&);
-  const noncopyable& operator=(const noncopyable&);
-};
-
-} // namespace detail
-
-using asio::detail::noncopyable;
-
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // ASIO_DETAIL_NONCOPYABLE_HPP
diff --git a/lib/asio/detail/null_event.hpp b/lib/asio/detail/null_event.hpp
deleted file mode 100644
index 5686a41..0000000
--- a/lib/asio/detail/null_event.hpp
+++ /dev/null
@@ -1,100 +0,0 @@
-//
-// detail/null_event.hpp
-// ~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_NULL_EVENT_HPP
-#define ASIO_DETAIL_NULL_EVENT_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-#include "asio/detail/noncopyable.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-class null_event
-  : private noncopyable
-{
-public:
-  // Constructor.
-  null_event()
-  {
-  }
-
-  // Destructor.
-  ~null_event()
-  {
-  }
-
-  // Signal the event. (Retained for backward compatibility.)
-  template <typename Lock>
-  void signal(Lock&)
-  {
-  }
-
-  // Signal all waiters.
-  template <typename Lock>
-  void signal_all(Lock&)
-  {
-  }
-
-  // Unlock the mutex and signal one waiter.
-  template <typename Lock>
-  void unlock_and_signal_one(Lock&)
-  {
-  }
-
-  // If there's a waiter, unlock the mutex and signal it.
-  template <typename Lock>
-  bool maybe_unlock_and_signal_one(Lock&)
-  {
-    return false;
-  }
-
-  // Reset the event.
-  template <typename Lock>
-  void clear(Lock&)
-  {
-  }
-
-  // Wait for the event to become signalled.
-  template <typename Lock>
-  void wait(Lock&)
-  {
-    do_wait();
-  }
-
-  // Timed wait for the event to become signalled.
-  template <typename Lock>
-  bool wait_for_usec(Lock&, long usec)
-  {
-    do_wait_for_usec(usec);
-    return true;
-  }
-
-private:
-  ASIO_DECL static void do_wait();
-  ASIO_DECL static void do_wait_for_usec(long usec);
-};
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#if defined(ASIO_HEADER_ONLY)
-# include "asio/detail/impl/null_event.ipp"
-#endif // defined(ASIO_HEADER_ONLY)
-
-#endif // ASIO_DETAIL_NULL_EVENT_HPP
diff --git a/lib/asio/detail/null_fenced_block.hpp b/lib/asio/detail/null_fenced_block.hpp
deleted file mode 100644
index 0275326..0000000
--- a/lib/asio/detail/null_fenced_block.hpp
+++ /dev/null
@@ -1,47 +0,0 @@
-//
-// detail/null_fenced_block.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_NULL_FENCED_BLOCK_HPP
-#define ASIO_DETAIL_NULL_FENCED_BLOCK_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/noncopyable.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-class null_fenced_block
-  : private noncopyable
-{
-public:
-  enum half_or_full_t { half, full };
-
-  // Constructor.
-  explicit null_fenced_block(half_or_full_t)
-  {
-  }
-
-  // Destructor.
-  ~null_fenced_block()
-  {
-  }
-};
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // ASIO_DETAIL_NULL_FENCED_BLOCK_HPP
diff --git a/lib/asio/detail/null_global.hpp b/lib/asio/detail/null_global.hpp
deleted file mode 100644
index 727dd3f..0000000
--- a/lib/asio/detail/null_global.hpp
+++ /dev/null
@@ -1,59 +0,0 @@
-//
-// detail/null_global.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_NULL_GLOBAL_HPP
-#define ASIO_DETAIL_NULL_GLOBAL_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-template <typename T>
-struct null_global_impl
-{
-  null_global_impl()
-    : ptr_(0)
-  {
-  }
-
-  // Destructor automatically cleans up the global.
-  ~null_global_impl()
-  {
-    delete ptr_;
-  }
-
-  static null_global_impl instance_;
-  T* ptr_;
-};
-
-template <typename T>
-null_global_impl<T> null_global_impl<T>::instance_;
-
-template <typename T>
-T& null_global()
-{
-  if (null_global_impl<T>::instance_.ptr_ == 0)
-    null_global_impl<T>::instance_.ptr_ = new T;
-  return *null_global_impl<T>::instance_.ptr_;
-}
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // ASIO_DETAIL_NULL_GLOBAL_HPP
diff --git a/lib/asio/detail/null_mutex.hpp b/lib/asio/detail/null_mutex.hpp
deleted file mode 100644
index afe3fc0..0000000
--- a/lib/asio/detail/null_mutex.hpp
+++ /dev/null
@@ -1,64 +0,0 @@
-//
-// detail/null_mutex.hpp
-// ~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_NULL_MUTEX_HPP
-#define ASIO_DETAIL_NULL_MUTEX_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-
-#if !defined(ASIO_HAS_THREADS)
-
-#include "asio/detail/noncopyable.hpp"
-#include "asio/detail/scoped_lock.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-class null_mutex
-  : private noncopyable
-{
-public:
-  typedef asio::detail::scoped_lock<null_mutex> scoped_lock;
-
-  // Constructor.
-  null_mutex()
-  {
-  }
-
-  // Destructor.
-  ~null_mutex()
-  {
-  }
-
-  // Lock the mutex.
-  void lock()
-  {
-  }
-
-  // Unlock the mutex.
-  void unlock()
-  {
-  }
-};
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // !defined(ASIO_HAS_THREADS)
-
-#endif // ASIO_DETAIL_NULL_MUTEX_HPP
diff --git a/lib/asio/detail/null_reactor.hpp b/lib/asio/detail/null_reactor.hpp
deleted file mode 100644
index ca3c5fd..0000000
--- a/lib/asio/detail/null_reactor.hpp
+++ /dev/null
@@ -1,68 +0,0 @@
-//
-// detail/null_reactor.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_NULL_REACTOR_HPP
-#define ASIO_DETAIL_NULL_REACTOR_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-
-#if defined(ASIO_HAS_IOCP) || defined(ASIO_WINDOWS_RUNTIME)
-
-#include "asio/detail/scheduler_operation.hpp"
-#include "asio/execution_context.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-class null_reactor
-  : public execution_context_service_base<null_reactor>
-{
-public:
-  // Constructor.
-  null_reactor(asio::execution_context& ctx)
-    : execution_context_service_base<null_reactor>(ctx)
-  {
-  }
-
-  // Destructor.
-  ~null_reactor()
-  {
-  }
-
-  // Destroy all user-defined handler objects owned by the service.
-  void shutdown()
-  {
-  }
-
-  // No-op because should never be called.
-  void run(long /*usec*/, op_queue<scheduler_operation>& /*ops*/)
-  {
-  }
-
-  // No-op.
-  void interrupt()
-  {
-  }
-};
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // defined(ASIO_HAS_IOCP) || defined(ASIO_WINDOWS_RUNTIME)
-
-#endif // ASIO_DETAIL_NULL_REACTOR_HPP
diff --git a/lib/asio/detail/null_signal_blocker.hpp b/lib/asio/detail/null_signal_blocker.hpp
deleted file mode 100644
index edfe820..0000000
--- a/lib/asio/detail/null_signal_blocker.hpp
+++ /dev/null
@@ -1,69 +0,0 @@
-//
-// detail/null_signal_blocker.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_NULL_SIGNAL_BLOCKER_HPP
-#define ASIO_DETAIL_NULL_SIGNAL_BLOCKER_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-
-#if !defined(ASIO_HAS_THREADS) \
-  || defined(ASIO_WINDOWS) \
-  || defined(ASIO_WINDOWS_RUNTIME) \
-  || defined(__CYGWIN__) \
-  || defined(__SYMBIAN32__)
-
-#include "asio/detail/noncopyable.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-class null_signal_blocker
-  : private noncopyable
-{
-public:
-  // Constructor blocks all signals for the calling thread.
-  null_signal_blocker()
-  {
-  }
-
-  // Destructor restores the previous signal mask.
-  ~null_signal_blocker()
-  {
-  }
-
-  // Block all signals for the calling thread.
-  void block()
-  {
-  }
-
-  // Restore the previous signal mask.
-  void unblock()
-  {
-  }
-};
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // !defined(ASIO_HAS_THREADS)
-       // || defined(ASIO_WINDOWS)
-       // || defined(ASIO_WINDOWS_RUNTIME)
-       // || defined(__CYGWIN__)
-       // || defined(__SYMBIAN32__)
-
-#endif // ASIO_DETAIL_NULL_SIGNAL_BLOCKER_HPP
diff --git a/lib/asio/detail/null_socket_service.hpp b/lib/asio/detail/null_socket_service.hpp
deleted file mode 100644
index 109c6c7..0000000
--- a/lib/asio/detail/null_socket_service.hpp
+++ /dev/null
@@ -1,508 +0,0 @@
-//
-// detail/null_socket_service.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_NULL_SOCKET_SERVICE_HPP
-#define ASIO_DETAIL_NULL_SOCKET_SERVICE_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-
-#if defined(ASIO_WINDOWS_RUNTIME)
-
-#include "asio/buffer.hpp"
-#include "asio/error.hpp"
-#include "asio/io_context.hpp"
-#include "asio/socket_base.hpp"
-#include "asio/detail/bind_handler.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-template <typename Protocol>
-class null_socket_service :
-  public service_base<null_socket_service<Protocol> >
-{
-public:
-  // The protocol type.
-  typedef Protocol protocol_type;
-
-  // The endpoint type.
-  typedef typename Protocol::endpoint endpoint_type;
-
-  // The native type of a socket.
-  typedef int native_handle_type;
-
-  // The implementation type of the socket.
-  struct implementation_type
-  {
-  };
-
-  // Constructor.
-  null_socket_service(asio::io_context& io_context)
-    : service_base<null_socket_service<Protocol> >(io_context),
-      io_context_(io_context)
-  {
-  }
-
-  // Destroy all user-defined handler objects owned by the service.
-  void shutdown()
-  {
-  }
-
-  // Construct a new socket implementation.
-  void construct(implementation_type&)
-  {
-  }
-
-  // Move-construct a new socket implementation.
-  void move_construct(implementation_type&, implementation_type&)
-  {
-  }
-
-  // Move-assign from another socket implementation.
-  void move_assign(implementation_type&,
-      null_socket_service&, implementation_type&)
-  {
-  }
-
-  // Move-construct a new socket implementation from another protocol type.
-  template <typename Protocol1>
-  void converting_move_construct(implementation_type&,
-      null_socket_service<Protocol1>&,
-      typename null_socket_service<Protocol1>::implementation_type&)
-  {
-  }
-
-  // Destroy a socket implementation.
-  void destroy(implementation_type&)
-  {
-  }
-
-  // Open a new socket implementation.
-  asio::error_code open(implementation_type&,
-      const protocol_type&, asio::error_code& ec)
-  {
-    ec = asio::error::operation_not_supported;
-    return ec;
-  }
-
-  // Assign a native socket to a socket implementation.
-  asio::error_code assign(implementation_type&, const protocol_type&,
-      const native_handle_type&, asio::error_code& ec)
-  {
-    ec = asio::error::operation_not_supported;
-    return ec;
-  }
-
-  // Determine whether the socket is open.
-  bool is_open(const implementation_type&) const
-  {
-    return false;
-  }
-
-  // Destroy a socket implementation.
-  asio::error_code close(implementation_type&,
-      asio::error_code& ec)
-  {
-    ec = asio::error::operation_not_supported;
-    return ec;
-  }
-
-  // Release ownership of the socket.
-  native_handle_type release(implementation_type&,
-      asio::error_code& ec)
-  {
-    ec = asio::error::operation_not_supported;
-    return 0;
-  }
-
-  // Get the native socket representation.
-  native_handle_type native_handle(implementation_type&)
-  {
-    return 0;
-  }
-
-  // Cancel all operations associated with the socket.
-  asio::error_code cancel(implementation_type&,
-      asio::error_code& ec)
-  {
-    ec = asio::error::operation_not_supported;
-    return ec;
-  }
-
-  // Determine whether the socket is at the out-of-band data mark.
-  bool at_mark(const implementation_type&,
-      asio::error_code& ec) const
-  {
-    ec = asio::error::operation_not_supported;
-    return false;
-  }
-
-  // Determine the number of bytes available for reading.
-  std::size_t available(const implementation_type&,
-      asio::error_code& ec) const
-  {
-    ec = asio::error::operation_not_supported;
-    return 0;
-  }
-
-  // Place the socket into the state where it will listen for new connections.
-  asio::error_code listen(implementation_type&,
-      int, asio::error_code& ec)
-  {
-    ec = asio::error::operation_not_supported;
-    return ec;
-  }
-
-  // Perform an IO control command on the socket.
-  template <typename IO_Control_Command>
-  asio::error_code io_control(implementation_type&,
-      IO_Control_Command&, asio::error_code& ec)
-  {
-    ec = asio::error::operation_not_supported;
-    return ec;
-  }
-
-  // Gets the non-blocking mode of the socket.
-  bool non_blocking(const implementation_type&) const
-  {
-    return false;
-  }
-
-  // Sets the non-blocking mode of the socket.
-  asio::error_code non_blocking(implementation_type&,
-      bool, asio::error_code& ec)
-  {
-    ec = asio::error::operation_not_supported;
-    return ec;
-  }
-
-  // Gets the non-blocking mode of the native socket implementation.
-  bool native_non_blocking(const implementation_type&) const
-  {
-    return false;
-  }
-
-  // Sets the non-blocking mode of the native socket implementation.
-  asio::error_code native_non_blocking(implementation_type&,
-      bool, asio::error_code& ec)
-  {
-    ec = asio::error::operation_not_supported;
-    return ec;
-  }
-
-  // Disable sends or receives on the socket.
-  asio::error_code shutdown(implementation_type&,
-      socket_base::shutdown_type, asio::error_code& ec)
-  {
-    ec = asio::error::operation_not_supported;
-    return ec;
-  }
-
-  // Bind the socket to the specified local endpoint.
-  asio::error_code bind(implementation_type&,
-      const endpoint_type&, asio::error_code& ec)
-  {
-    ec = asio::error::operation_not_supported;
-    return ec;
-  }
-
-  // Set a socket option.
-  template <typename Option>
-  asio::error_code set_option(implementation_type&,
-      const Option&, asio::error_code& ec)
-  {
-    ec = asio::error::operation_not_supported;
-    return ec;
-  }
-
-  // Set a socket option.
-  template <typename Option>
-  asio::error_code get_option(const implementation_type&,
-      Option&, asio::error_code& ec) const
-  {
-    ec = asio::error::operation_not_supported;
-    return ec;
-  }
-
-  // Get the local endpoint.
-  endpoint_type local_endpoint(const implementation_type&,
-      asio::error_code& ec) const
-  {
-    ec = asio::error::operation_not_supported;
-    return endpoint_type();
-  }
-
-  // Get the remote endpoint.
-  endpoint_type remote_endpoint(const implementation_type&,
-      asio::error_code& ec) const
-  {
-    ec = asio::error::operation_not_supported;
-    return endpoint_type();
-  }
-
-  // Send the given data to the peer.
-  template <typename ConstBufferSequence>
-  std::size_t send(implementation_type&, const ConstBufferSequence&,
-      socket_base::message_flags, asio::error_code& ec)
-  {
-    ec = asio::error::operation_not_supported;
-    return 0;
-  }
-
-  // Wait until data can be sent without blocking.
-  std::size_t send(implementation_type&, const null_buffers&,
-      socket_base::message_flags, asio::error_code& ec)
-  {
-    ec = asio::error::operation_not_supported;
-    return 0;
-  }
-
-  // Start an asynchronous send. The data being sent must be valid for the
-  // lifetime of the asynchronous operation.
-  template <typename ConstBufferSequence, typename Handler>
-  void async_send(implementation_type&, const ConstBufferSequence&,
-      socket_base::message_flags, Handler& handler)
-  {
-    asio::error_code ec = asio::error::operation_not_supported;
-    const std::size_t bytes_transferred = 0;
-    io_context_.post(detail::bind_handler(handler, ec, bytes_transferred));
-  }
-
-  // Start an asynchronous wait until data can be sent without blocking.
-  template <typename Handler>
-  void async_send(implementation_type&, const null_buffers&,
-      socket_base::message_flags, Handler& handler)
-  {
-    asio::error_code ec = asio::error::operation_not_supported;
-    const std::size_t bytes_transferred = 0;
-    io_context_.post(detail::bind_handler(handler, ec, bytes_transferred));
-  }
-
-  // Receive some data from the peer. Returns the number of bytes received.
-  template <typename MutableBufferSequence>
-  std::size_t receive(implementation_type&, const MutableBufferSequence&,
-      socket_base::message_flags, asio::error_code& ec)
-  {
-    ec = asio::error::operation_not_supported;
-    return 0;
-  }
-
-  // Wait until data can be received without blocking.
-  std::size_t receive(implementation_type&, const null_buffers&,
-      socket_base::message_flags, asio::error_code& ec)
-  {
-    ec = asio::error::operation_not_supported;
-    return 0;
-  }
-
-  // Start an asynchronous receive. The buffer for the data being received
-  // must be valid for the lifetime of the asynchronous operation.
-  template <typename MutableBufferSequence, typename Handler>
-  void async_receive(implementation_type&, const MutableBufferSequence&,
-      socket_base::message_flags, Handler& handler)
-  {
-    asio::error_code ec = asio::error::operation_not_supported;
-    const std::size_t bytes_transferred = 0;
-    io_context_.post(detail::bind_handler(handler, ec, bytes_transferred));
-  }
-
-  // Wait until data can be received without blocking.
-  template <typename Handler>
-  void async_receive(implementation_type&, const null_buffers&,
-      socket_base::message_flags, Handler& handler)
-  {
-    asio::error_code ec = asio::error::operation_not_supported;
-    const std::size_t bytes_transferred = 0;
-    io_context_.post(detail::bind_handler(handler, ec, bytes_transferred));
-  }
-
-  // Receive some data with associated flags. Returns the number of bytes
-  // received.
-  template <typename MutableBufferSequence>
-  std::size_t receive_with_flags(implementation_type&,
-      const MutableBufferSequence&, socket_base::message_flags,
-      socket_base::message_flags&, asio::error_code& ec)
-  {
-    ec = asio::error::operation_not_supported;
-    return 0;
-  }
-
-  // Wait until data can be received without blocking.
-  std::size_t receive_with_flags(implementation_type&,
-      const null_buffers&, socket_base::message_flags,
-      socket_base::message_flags&, asio::error_code& ec)
-  {
-    ec = asio::error::operation_not_supported;
-    return 0;
-  }
-
-  // Start an asynchronous receive. The buffer for the data being received
-  // must be valid for the lifetime of the asynchronous operation.
-  template <typename MutableBufferSequence, typename Handler>
-  void async_receive_with_flags(implementation_type&,
-      const MutableBufferSequence&, socket_base::message_flags,
-      socket_base::message_flags&, Handler& handler)
-  {
-    asio::error_code ec = asio::error::operation_not_supported;
-    const std::size_t bytes_transferred = 0;
-    io_context_.post(detail::bind_handler(handler, ec, bytes_transferred));
-  }
-
-  // Wait until data can be received without blocking.
-  template <typename Handler>
-  void async_receive_with_flags(implementation_type&,
-      const null_buffers&, socket_base::message_flags,
-      socket_base::message_flags&, Handler& handler)
-  {
-    asio::error_code ec = asio::error::operation_not_supported;
-    const std::size_t bytes_transferred = 0;
-    io_context_.post(detail::bind_handler(handler, ec, bytes_transferred));
-  }
-
-  // Send a datagram to the specified endpoint. Returns the number of bytes
-  // sent.
-  template <typename ConstBufferSequence>
-  std::size_t send_to(implementation_type&, const ConstBufferSequence&,
-      const endpoint_type&, socket_base::message_flags,
-      asio::error_code& ec)
-  {
-    ec = asio::error::operation_not_supported;
-    return 0;
-  }
-
-  // Wait until data can be sent without blocking.
-  std::size_t send_to(implementation_type&, const null_buffers&,
-      const endpoint_type&, socket_base::message_flags,
-      asio::error_code& ec)
-  {
-    ec = asio::error::operation_not_supported;
-    return 0;
-  }
-
-  // Start an asynchronous send. The data being sent must be valid for the
-  // lifetime of the asynchronous operation.
-  template <typename ConstBufferSequence, typename Handler>
-  void async_send_to(implementation_type&, const ConstBufferSequence&,
-      const endpoint_type&, socket_base::message_flags,
-      Handler& handler)
-  {
-    asio::error_code ec = asio::error::operation_not_supported;
-    const std::size_t bytes_transferred = 0;
-    io_context_.post(detail::bind_handler(handler, ec, bytes_transferred));
-  }
-
-  // Start an asynchronous wait until data can be sent without blocking.
-  template <typename Handler>
-  void async_send_to(implementation_type&, const null_buffers&,
-      const endpoint_type&, socket_base::message_flags, Handler& handler)
-  {
-    asio::error_code ec = asio::error::operation_not_supported;
-    const std::size_t bytes_transferred = 0;
-    io_context_.post(detail::bind_handler(handler, ec, bytes_transferred));
-  }
-
-  // Receive a datagram with the endpoint of the sender. Returns the number of
-  // bytes received.
-  template <typename MutableBufferSequence>
-  std::size_t receive_from(implementation_type&, const MutableBufferSequence&,
-      endpoint_type&, socket_base::message_flags,
-      asio::error_code& ec)
-  {
-    ec = asio::error::operation_not_supported;
-    return 0;
-  }
-
-  // Wait until data can be received without blocking.
-  std::size_t receive_from(implementation_type&, const null_buffers&,
-      endpoint_type&, socket_base::message_flags,
-      asio::error_code& ec)
-  {
-    ec = asio::error::operation_not_supported;
-    return 0;
-  }
-
-  // Start an asynchronous receive. The buffer for the data being received and
-  // the sender_endpoint object must both be valid for the lifetime of the
-  // asynchronous operation.
-  template <typename MutableBufferSequence, typename Handler>
-  void async_receive_from(implementation_type&,
-      const MutableBufferSequence&, endpoint_type&,
-      socket_base::message_flags, Handler& handler)
-  {
-    asio::error_code ec = asio::error::operation_not_supported;
-    const std::size_t bytes_transferred = 0;
-    io_context_.post(detail::bind_handler(handler, ec, bytes_transferred));
-  }
-
-  // Wait until data can be received without blocking.
-  template <typename Handler>
-  void async_receive_from(implementation_type&,
-      const null_buffers&, endpoint_type&,
-      socket_base::message_flags, Handler& handler)
-  {
-    asio::error_code ec = asio::error::operation_not_supported;
-    const std::size_t bytes_transferred = 0;
-    io_context_.post(detail::bind_handler(handler, ec, bytes_transferred));
-  }
-
-  // Accept a new connection.
-  template <typename Socket>
-  asio::error_code accept(implementation_type&,
-      Socket&, endpoint_type*, asio::error_code& ec)
-  {
-    ec = asio::error::operation_not_supported;
-    return ec;
-  }
-
-  // Start an asynchronous accept. The peer and peer_endpoint objects
-  // must be valid until the accept's handler is invoked.
-  template <typename Socket, typename Handler>
-  void async_accept(implementation_type&, Socket&,
-      endpoint_type*, Handler& handler)
-  {
-    asio::error_code ec = asio::error::operation_not_supported;
-    io_context_.post(detail::bind_handler(handler, ec));
-  }
-
-  // Connect the socket to the specified endpoint.
-  asio::error_code connect(implementation_type&,
-      const endpoint_type&, asio::error_code& ec)
-  {
-    ec = asio::error::operation_not_supported;
-    return ec;
-  }
-
-  // Start an asynchronous connect.
-  template <typename Handler>
-  void async_connect(implementation_type&,
-      const endpoint_type&, Handler& handler)
-  {
-    asio::error_code ec = asio::error::operation_not_supported;
-    io_context_.post(detail::bind_handler(handler, ec));
-  }
-
-private:
-  asio::io_context& io_context_;
-};
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // defined(ASIO_WINDOWS_RUNTIME)
-
-#endif // ASIO_DETAIL_NULL_SOCKET_SERVICE_HPP
diff --git a/lib/asio/detail/null_static_mutex.hpp b/lib/asio/detail/null_static_mutex.hpp
deleted file mode 100644
index 36ec04f..0000000
--- a/lib/asio/detail/null_static_mutex.hpp
+++ /dev/null
@@ -1,60 +0,0 @@
-//
-// detail/null_static_mutex.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_NULL_STATIC_MUTEX_HPP
-#define ASIO_DETAIL_NULL_STATIC_MUTEX_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-
-#if !defined(ASIO_HAS_THREADS)
-
-#include "asio/detail/scoped_lock.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-struct null_static_mutex
-{
-  typedef asio::detail::scoped_lock<null_static_mutex> scoped_lock;
-
-  // Initialise the mutex.
-  void init()
-  {
-  }
-
-  // Lock the mutex.
-  void lock()
-  {
-  }
-
-  // Unlock the mutex.
-  void unlock()
-  {
-  }
-
-  int unused_;
-};
-
-#define ASIO_NULL_STATIC_MUTEX_INIT { 0 }
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // !defined(ASIO_HAS_THREADS)
-
-#endif // ASIO_DETAIL_NULL_STATIC_MUTEX_HPP
diff --git a/lib/asio/detail/null_thread.hpp b/lib/asio/detail/null_thread.hpp
deleted file mode 100644
index 7291ba3..0000000
--- a/lib/asio/detail/null_thread.hpp
+++ /dev/null
@@ -1,67 +0,0 @@
-//
-// detail/null_thread.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_NULL_THREAD_HPP
-#define ASIO_DETAIL_NULL_THREAD_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-
-#if !defined(ASIO_HAS_THREADS)
-
-#include "asio/detail/noncopyable.hpp"
-#include "asio/detail/throw_error.hpp"
-#include "asio/error.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-class null_thread
-  : private noncopyable
-{
-public:
-  // Constructor.
-  template <typename Function>
-  null_thread(Function, unsigned int = 0)
-  {
-    asio::detail::throw_error(
-        asio::error::operation_not_supported, "thread");
-  }
-
-  // Destructor.
-  ~null_thread()
-  {
-  }
-
-  // Wait for the thread to exit.
-  void join()
-  {
-  }
-
-  // Get number of CPUs.
-  static std::size_t hardware_concurrency()
-  {
-    return 1;
-  }
-};
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // !defined(ASIO_HAS_THREADS)
-
-#endif // ASIO_DETAIL_NULL_THREAD_HPP
diff --git a/lib/asio/detail/null_tss_ptr.hpp b/lib/asio/detail/null_tss_ptr.hpp
deleted file mode 100644
index 323967d..0000000
--- a/lib/asio/detail/null_tss_ptr.hpp
+++ /dev/null
@@ -1,68 +0,0 @@
-//
-// detail/null_tss_ptr.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_NULL_TSS_PTR_HPP
-#define ASIO_DETAIL_NULL_TSS_PTR_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-
-#if !defined(ASIO_HAS_THREADS)
-
-#include "asio/detail/noncopyable.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-template <typename T>
-class null_tss_ptr
-  : private noncopyable
-{
-public:
-  // Constructor.
-  null_tss_ptr()
-    : value_(0)
-  {
-  }
-
-  // Destructor.
-  ~null_tss_ptr()
-  {
-  }
-
-  // Get the value.
-  operator T*() const
-  {
-    return value_;
-  }
-
-  // Set the value.
-  void operator=(T* value)
-  {
-    value_ = value;
-  }
-
-private:
-  T* value_;
-};
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // !defined(ASIO_HAS_THREADS)
-
-#endif // ASIO_DETAIL_NULL_TSS_PTR_HPP
diff --git a/lib/asio/detail/object_pool.hpp b/lib/asio/detail/object_pool.hpp
deleted file mode 100644
index e1a3c54..0000000
--- a/lib/asio/detail/object_pool.hpp
+++ /dev/null
@@ -1,171 +0,0 @@
-//
-// detail/object_pool.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_OBJECT_POOL_HPP
-#define ASIO_DETAIL_OBJECT_POOL_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/noncopyable.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-template <typename Object>
-class object_pool;
-
-class object_pool_access
-{
-public:
-  template <typename Object>
-  static Object* create()
-  {
-    return new Object;
-  }
-
-  template <typename Object, typename Arg>
-  static Object* create(Arg arg)
-  {
-    return new Object(arg);
-  }
-
-  template <typename Object>
-  static void destroy(Object* o)
-  {
-    delete o;
-  }
-
-  template <typename Object>
-  static Object*& next(Object* o)
-  {
-    return o->next_;
-  }
-
-  template <typename Object>
-  static Object*& prev(Object* o)
-  {
-    return o->prev_;
-  }
-};
-
-template <typename Object>
-class object_pool
-  : private noncopyable
-{
-public:
-  // Constructor.
-  object_pool()
-    : live_list_(0),
-      free_list_(0)
-  {
-  }
-
-  // Destructor destroys all objects.
-  ~object_pool()
-  {
-    destroy_list(live_list_);
-    destroy_list(free_list_);
-  }
-
-  // Get the object at the start of the live list.
-  Object* first()
-  {
-    return live_list_;
-  }
-
-  // Allocate a new object.
-  Object* alloc()
-  {
-    Object* o = free_list_;
-    if (o)
-      free_list_ = object_pool_access::next(free_list_);
-    else
-      o = object_pool_access::create<Object>();
-
-    object_pool_access::next(o) = live_list_;
-    object_pool_access::prev(o) = 0;
-    if (live_list_)
-      object_pool_access::prev(live_list_) = o;
-    live_list_ = o;
-
-    return o;
-  }
-
-  // Allocate a new object with an argument.
-  template <typename Arg>
-  Object* alloc(Arg arg)
-  {
-    Object* o = free_list_;
-    if (o)
-      free_list_ = object_pool_access::next(free_list_);
-    else
-      o = object_pool_access::create<Object>(arg);
-
-    object_pool_access::next(o) = live_list_;
-    object_pool_access::prev(o) = 0;
-    if (live_list_)
-      object_pool_access::prev(live_list_) = o;
-    live_list_ = o;
-
-    return o;
-  }
-
-  // Free an object. Moves it to the free list. No destructors are run.
-  void free(Object* o)
-  {
-    if (live_list_ == o)
-      live_list_ = object_pool_access::next(o);
-
-    if (object_pool_access::prev(o))
-    {
-      object_pool_access::next(object_pool_access::prev(o))
-        = object_pool_access::next(o);
-    }
-
-    if (object_pool_access::next(o))
-    {
-      object_pool_access::prev(object_pool_access::next(o))
-        = object_pool_access::prev(o);
-    }
-
-    object_pool_access::next(o) = free_list_;
-    object_pool_access::prev(o) = 0;
-    free_list_ = o;
-  }
-
-private:
-  // Helper function to destroy all elements in a list.
-  void destroy_list(Object* list)
-  {
-    while (list)
-    {
-      Object* o = list;
-      list = object_pool_access::next(o);
-      object_pool_access::destroy(o);
-    }
-  }
-
-  // The list of live objects.
-  Object* live_list_;
-
-  // The free list.
-  Object* free_list_;
-};
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // ASIO_DETAIL_OBJECT_POOL_HPP
diff --git a/lib/asio/detail/old_win_sdk_compat.hpp b/lib/asio/detail/old_win_sdk_compat.hpp
deleted file mode 100644
index bfb109e..0000000
--- a/lib/asio/detail/old_win_sdk_compat.hpp
+++ /dev/null
@@ -1,214 +0,0 @@
-//
-// detail/old_win_sdk_compat.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_OLD_WIN_SDK_COMPAT_HPP
-#define ASIO_DETAIL_OLD_WIN_SDK_COMPAT_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-
-#if defined(ASIO_WINDOWS) || defined(__CYGWIN__)
-
-// Guess whether we are building against on old Platform SDK.
-#if !defined(IN6ADDR_ANY_INIT)
-#define ASIO_HAS_OLD_WIN_SDK 1
-#endif // !defined(IN6ADDR_ANY_INIT)
-
-#if defined(ASIO_HAS_OLD_WIN_SDK)
-
-// Emulation of types that are missing from old Platform SDKs.
-//
-// N.B. this emulation is also used if building for a Windows 2000 target with
-// a recent (i.e. Vista or later) SDK, as the SDK does not provide IPv6 support
-// in that case.
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-enum
-{
-  sockaddr_storage_maxsize = 128, // Maximum size.
-  sockaddr_storage_alignsize = (sizeof(__int64)), // Desired alignment.
-  sockaddr_storage_pad1size = (sockaddr_storage_alignsize - sizeof(short)),
-  sockaddr_storage_pad2size = (sockaddr_storage_maxsize -
-      (sizeof(short) + sockaddr_storage_pad1size + sockaddr_storage_alignsize))
-};
-
-struct sockaddr_storage_emulation
-{
-  short ss_family;
-  char __ss_pad1[sockaddr_storage_pad1size];
-  __int64 __ss_align;
-  char __ss_pad2[sockaddr_storage_pad2size];
-};
-
-struct in6_addr_emulation
-{
-  union
-  {
-    u_char Byte[16];
-    u_short Word[8];
-  } u;
-};
-
-#if !defined(s6_addr)
-# define _S6_un u
-# define _S6_u8 Byte
-# define s6_addr _S6_un._S6_u8
-#endif // !defined(s6_addr)
-
-struct sockaddr_in6_emulation
-{
-  short sin6_family;
-  u_short sin6_port;
-  u_long sin6_flowinfo;
-  in6_addr_emulation sin6_addr;
-  u_long sin6_scope_id;
-};
-
-struct ipv6_mreq_emulation
-{
-  in6_addr_emulation ipv6mr_multiaddr;
-  unsigned int ipv6mr_interface;
-};
-
-struct addrinfo_emulation
-{
-  int ai_flags;
-  int ai_family;
-  int ai_socktype;
-  int ai_protocol;
-  size_t ai_addrlen;
-  char* ai_canonname;
-  sockaddr* ai_addr;
-  addrinfo_emulation* ai_next;
-};
-
-#if !defined(AI_PASSIVE)
-# define AI_PASSIVE 0x1
-#endif
-
-#if !defined(AI_CANONNAME)
-# define AI_CANONNAME 0x2
-#endif
-
-#if !defined(AI_NUMERICHOST)
-# define AI_NUMERICHOST 0x4
-#endif
-
-#if !defined(EAI_AGAIN)
-# define EAI_AGAIN WSATRY_AGAIN
-#endif
-
-#if !defined(EAI_BADFLAGS)
-# define EAI_BADFLAGS WSAEINVAL
-#endif
-
-#if !defined(EAI_FAIL)
-# define EAI_FAIL WSANO_RECOVERY
-#endif
-
-#if !defined(EAI_FAMILY)
-# define EAI_FAMILY WSAEAFNOSUPPORT
-#endif
-
-#if !defined(EAI_MEMORY)
-# define EAI_MEMORY WSA_NOT_ENOUGH_MEMORY
-#endif
-
-#if !defined(EAI_NODATA)
-# define EAI_NODATA WSANO_DATA
-#endif
-
-#if !defined(EAI_NONAME)
-# define EAI_NONAME WSAHOST_NOT_FOUND
-#endif
-
-#if !defined(EAI_SERVICE)
-# define EAI_SERVICE WSATYPE_NOT_FOUND
-#endif
-
-#if !defined(EAI_SOCKTYPE)
-# define EAI_SOCKTYPE WSAESOCKTNOSUPPORT
-#endif
-
-#if !defined(NI_NOFQDN)
-# define NI_NOFQDN 0x01
-#endif
-
-#if !defined(NI_NUMERICHOST)
-# define NI_NUMERICHOST 0x02
-#endif
-
-#if !defined(NI_NAMEREQD)
-# define NI_NAMEREQD 0x04
-#endif
-
-#if !defined(NI_NUMERICSERV)
-# define NI_NUMERICSERV 0x08
-#endif
-
-#if !defined(NI_DGRAM)
-# define NI_DGRAM 0x10
-#endif
-
-#if !defined(IPPROTO_IPV6)
-# define IPPROTO_IPV6 41
-#endif
-
-#if !defined(IPV6_UNICAST_HOPS)
-# define IPV6_UNICAST_HOPS 4
-#endif
-
-#if !defined(IPV6_MULTICAST_IF)
-# define IPV6_MULTICAST_IF 9
-#endif
-
-#if !defined(IPV6_MULTICAST_HOPS)
-# define IPV6_MULTICAST_HOPS 10
-#endif
-
-#if !defined(IPV6_MULTICAST_LOOP)
-# define IPV6_MULTICAST_LOOP 11
-#endif
-
-#if !defined(IPV6_JOIN_GROUP)
-# define IPV6_JOIN_GROUP 12
-#endif
-
-#if !defined(IPV6_LEAVE_GROUP)
-# define IPV6_LEAVE_GROUP 13
-#endif
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // defined(ASIO_HAS_OLD_WIN_SDK)
-
-// Even newer Platform SDKs that support IPv6 may not define IPV6_V6ONLY.
-#if !defined(IPV6_V6ONLY)
-# define IPV6_V6ONLY 27
-#endif
-
-// Some SDKs (e.g. Windows CE) don't define IPPROTO_ICMPV6.
-#if !defined(IPPROTO_ICMPV6)
-# define IPPROTO_ICMPV6 58
-#endif
-
-#endif // defined(ASIO_WINDOWS) || defined(__CYGWIN__)
-
-#endif // ASIO_DETAIL_OLD_WIN_SDK_COMPAT_HPP
diff --git a/lib/asio/detail/op_queue.hpp b/lib/asio/detail/op_queue.hpp
deleted file mode 100644
index 6219f79..0000000
--- a/lib/asio/detail/op_queue.hpp
+++ /dev/null
@@ -1,162 +0,0 @@
-//
-// detail/op_queue.hpp
-// ~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_OP_QUEUE_HPP
-#define ASIO_DETAIL_OP_QUEUE_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/noncopyable.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-template <typename Operation>
-class op_queue;
-
-class op_queue_access
-{
-public:
-  template <typename Operation>
-  static Operation* next(Operation* o)
-  {
-    return static_cast<Operation*>(o->next_);
-  }
-
-  template <typename Operation1, typename Operation2>
-  static void next(Operation1*& o1, Operation2* o2)
-  {
-    o1->next_ = o2;
-  }
-
-  template <typename Operation>
-  static void destroy(Operation* o)
-  {
-    o->destroy();
-  }
-
-  template <typename Operation>
-  static Operation*& front(op_queue<Operation>& q)
-  {
-    return q.front_;
-  }
-
-  template <typename Operation>
-  static Operation*& back(op_queue<Operation>& q)
-  {
-    return q.back_;
-  }
-};
-
-template <typename Operation>
-class op_queue
-  : private noncopyable
-{
-public:
-  // Constructor.
-  op_queue()
-    : front_(0),
-      back_(0)
-  {
-  }
-
-  // Destructor destroys all operations.
-  ~op_queue()
-  {
-    while (Operation* op = front_)
-    {
-      pop();
-      op_queue_access::destroy(op);
-    }
-  }
-
-  // Get the operation at the front of the queue.
-  Operation* front()
-  {
-    return front_;
-  }
-
-  // Pop an operation from the front of the queue.
-  void pop()
-  {
-    if (front_)
-    {
-      Operation* tmp = front_;
-      front_ = op_queue_access::next(front_);
-      if (front_ == 0)
-        back_ = 0;
-      op_queue_access::next(tmp, static_cast<Operation*>(0));
-    }
-  }
-
-  // Push an operation on to the back of the queue.
-  void push(Operation* h)
-  {
-    op_queue_access::next(h, static_cast<Operation*>(0));
-    if (back_)
-    {
-      op_queue_access::next(back_, h);
-      back_ = h;
-    }
-    else
-    {
-      front_ = back_ = h;
-    }
-  }
-
-  // Push all operations from another queue on to the back of the queue. The
-  // source queue may contain operations of a derived type.
-  template <typename OtherOperation>
-  void push(op_queue<OtherOperation>& q)
-  {
-    if (Operation* other_front = op_queue_access::front(q))
-    {
-      if (back_)
-        op_queue_access::next(back_, other_front);
-      else
-        front_ = other_front;
-      back_ = op_queue_access::back(q);
-      op_queue_access::front(q) = 0;
-      op_queue_access::back(q) = 0;
-    }
-  }
-
-  // Whether the queue is empty.
-  bool empty() const
-  {
-    return front_ == 0;
-  }
-
-  // Test whether an operation is already enqueued.
-  bool is_enqueued(Operation* o) const
-  {
-    return op_queue_access::next(o) != 0 || back_ == o;
-  }
-
-private:
-  friend class op_queue_access;
-
-  // The front of the queue.
-  Operation* front_;
-
-  // The back of the queue.
-  Operation* back_;
-};
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // ASIO_DETAIL_OP_QUEUE_HPP
diff --git a/lib/asio/detail/operation.hpp b/lib/asio/detail/operation.hpp
deleted file mode 100644
index 811e54d..0000000
--- a/lib/asio/detail/operation.hpp
+++ /dev/null
@@ -1,38 +0,0 @@
-//
-// detail/operation.hpp
-// ~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_OPERATION_HPP
-#define ASIO_DETAIL_OPERATION_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-
-#if defined(ASIO_HAS_IOCP)
-# include "asio/detail/win_iocp_operation.hpp"
-#else
-# include "asio/detail/scheduler_operation.hpp"
-#endif
-
-namespace asio {
-namespace detail {
-
-#if defined(ASIO_HAS_IOCP)
-typedef win_iocp_operation operation;
-#else
-typedef scheduler_operation operation;
-#endif
-
-} // namespace detail
-} // namespace asio
-
-#endif // ASIO_DETAIL_OPERATION_HPP
diff --git a/lib/asio/detail/pipe_select_interrupter.hpp b/lib/asio/detail/pipe_select_interrupter.hpp
deleted file mode 100644
index 55d7db4..0000000
--- a/lib/asio/detail/pipe_select_interrupter.hpp
+++ /dev/null
@@ -1,89 +0,0 @@
-//
-// detail/pipe_select_interrupter.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_PIPE_SELECT_INTERRUPTER_HPP
-#define ASIO_DETAIL_PIPE_SELECT_INTERRUPTER_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-
-#if !defined(ASIO_WINDOWS)
-#if !defined(ASIO_WINDOWS_RUNTIME)
-#if !defined(__CYGWIN__)
-#if !defined(__SYMBIAN32__)
-#if !defined(ASIO_HAS_EVENTFD)
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-class pipe_select_interrupter
-{
-public:
-  // Constructor.
-  ASIO_DECL pipe_select_interrupter();
-
-  // Destructor.
-  ASIO_DECL ~pipe_select_interrupter();
-
-  // Recreate the interrupter's descriptors. Used after a fork.
-  ASIO_DECL void recreate();
-
-  // Interrupt the select call.
-  ASIO_DECL void interrupt();
-
-  // Reset the select interrupt. Returns true if the call was interrupted.
-  ASIO_DECL bool reset();
-
-  // Get the read descriptor to be passed to select.
-  int read_descriptor() const
-  {
-    return read_descriptor_;
-  }
-
-private:
-  // Open the descriptors. Throws on error.
-  ASIO_DECL void open_descriptors();
-
-  // Close the descriptors.
-  ASIO_DECL void close_descriptors();
-
-  // The read end of a connection used to interrupt the select call. This file
-  // descriptor is passed to select such that when it is time to stop, a single
-  // byte will be written on the other end of the connection and this
-  // descriptor will become readable.
-  int read_descriptor_;
-
-  // The write end of a connection used to interrupt the select call. A single
-  // byte may be written to this to wake up the select which is waiting for the
-  // other end to become readable.
-  int write_descriptor_;
-};
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#if defined(ASIO_HEADER_ONLY)
-# include "asio/detail/impl/pipe_select_interrupter.ipp"
-#endif // defined(ASIO_HEADER_ONLY)
-
-#endif // !defined(ASIO_HAS_EVENTFD)
-#endif // !defined(__SYMBIAN32__)
-#endif // !defined(__CYGWIN__)
-#endif // !defined(ASIO_WINDOWS_RUNTIME)
-#endif // !defined(ASIO_WINDOWS)
-
-#endif // ASIO_DETAIL_PIPE_SELECT_INTERRUPTER_HPP
diff --git a/lib/asio/detail/pop_options.hpp b/lib/asio/detail/pop_options.hpp
deleted file mode 100644
index 1045612..0000000
--- a/lib/asio/detail/pop_options.hpp
+++ /dev/null
@@ -1,135 +0,0 @@
-//
-// detail/pop_options.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-// No header guard
-
-#if defined(__COMO__)
-
-// Comeau C++
-
-#elif defined(__DMC__)
-
-// Digital Mars C++
-
-#elif defined(__INTEL_COMPILER) || defined(__ICL) \
-  || defined(__ICC) || defined(__ECC)
-
-// Intel C++
-
-# if (__GNUC__ == 4 && __GNUC_MINOR__ >= 1) || (__GNUC__ > 4)
-#  pragma GCC visibility pop
-# endif // (__GNUC__ == 4 && __GNUC_MINOR__ >= 1) || (__GNUC__ > 4)
-
-#elif defined(__clang__)
-
-// Clang
-
-# if defined(__OBJC__)
-#  if !defined(__APPLE_CC__) || (__APPLE_CC__ <= 1)
-#   if defined(ASIO_OBJC_WORKAROUND)
-#    undef Protocol
-#    undef id
-#    undef ASIO_OBJC_WORKAROUND
-#   endif
-#  endif
-# endif
-
-# if !defined(_WIN32) && !defined(__WIN32__) && !defined(WIN32)
-#  pragma GCC visibility pop
-# endif // !defined(_WIN32) && !defined(__WIN32__) && !defined(WIN32)
-
-#elif defined(__GNUC__)
-
-// GNU C++
-
-# if defined(__MINGW32__) || defined(__CYGWIN__)
-#  pragma pack (pop)
-# endif
-
-# if defined(__OBJC__)
-#  if !defined(__APPLE_CC__) || (__APPLE_CC__ <= 1)
-#   if defined(ASIO_OBJC_WORKAROUND)
-#    undef Protocol
-#    undef id
-#    undef ASIO_OBJC_WORKAROUND
-#   endif
-#  endif
-# endif
-
-# if (__GNUC__ == 4 && __GNUC_MINOR__ >= 1) || (__GNUC__ > 4)
-#  pragma GCC visibility pop
-# endif // (__GNUC__ == 4 && __GNUC_MINOR__ >= 1) || (__GNUC__ > 4)
-
-# if (__GNUC__ >= 7)
-#  pragma GCC diagnostic pop
-# endif // (__GNUC__ >= 7)
-
-#elif defined(__KCC)
-
-// Kai C++
-
-#elif defined(__sgi)
-
-// SGI MIPSpro C++
-
-#elif defined(__DECCXX)
-
-// Compaq Tru64 Unix cxx
-
-#elif defined(__ghs)
-
-// Greenhills C++
-
-#elif defined(__BORLANDC__)
-
-// Borland C++
-
-# pragma option pop
-# pragma nopushoptwarn
-# pragma nopackwarning
-
-#elif defined(__MWERKS__)
-
-// Metrowerks CodeWarrior
-
-#elif defined(__SUNPRO_CC)
-
-// Sun Workshop Compiler C++
-
-#elif defined(__HP_aCC)
-
-// HP aCC
-
-#elif defined(__MRC__) || defined(__SC__)
-
-// MPW MrCpp or SCpp
-
-#elif defined(__IBMCPP__)
-
-// IBM Visual Age
-
-#elif defined(_MSC_VER)
-
-// Microsoft Visual C++
-//
-// Must remain the last #elif since some other vendors (Metrowerks, for example)
-// also #define _MSC_VER
-
-# pragma warning (pop)
-# pragma pack (pop)
-
-# if defined(__cplusplus_cli) || defined(__cplusplus_winrt)
-#  if defined(ASIO_CLR_WORKAROUND)
-#   undef generic
-#   undef ASIO_CLR_WORKAROUND
-#  endif
-# endif
-
-#endif
diff --git a/lib/asio/detail/posix_event.hpp b/lib/asio/detail/posix_event.hpp
deleted file mode 100644
index 121065e..0000000
--- a/lib/asio/detail/posix_event.hpp
+++ /dev/null
@@ -1,162 +0,0 @@
-//
-// detail/posix_event.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_POSIX_EVENT_HPP
-#define ASIO_DETAIL_POSIX_EVENT_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-
-#if defined(ASIO_HAS_PTHREADS)
-
-#include <pthread.h>
-#include "asio/detail/assert.hpp"
-#include "asio/detail/noncopyable.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-class posix_event
-  : private noncopyable
-{
-public:
-  // Constructor.
-  ASIO_DECL posix_event();
-
-  // Destructor.
-  ~posix_event()
-  {
-    ::pthread_cond_destroy(&cond_);
-  }
-
-  // Signal the event. (Retained for backward compatibility.)
-  template <typename Lock>
-  void signal(Lock& lock)
-  {
-    this->signal_all(lock);
-  }
-
-  // Signal all waiters.
-  template <typename Lock>
-  void signal_all(Lock& lock)
-  {
-    ASIO_ASSERT(lock.locked());
-    (void)lock;
-    state_ |= 1;
-    ::pthread_cond_broadcast(&cond_); // Ignore EINVAL.
-  }
-
-  // Unlock the mutex and signal one waiter.
-  template <typename Lock>
-  void unlock_and_signal_one(Lock& lock)
-  {
-    ASIO_ASSERT(lock.locked());
-    state_ |= 1;
-    bool have_waiters = (state_ > 1);
-    lock.unlock();
-    if (have_waiters)
-      ::pthread_cond_signal(&cond_); // Ignore EINVAL.
-  }
-
-  // If there's a waiter, unlock the mutex and signal it.
-  template <typename Lock>
-  bool maybe_unlock_and_signal_one(Lock& lock)
-  {
-    ASIO_ASSERT(lock.locked());
-    state_ |= 1;
-    if (state_ > 1)
-    {
-      lock.unlock();
-      ::pthread_cond_signal(&cond_); // Ignore EINVAL.
-      return true;
-    }
-    return false;
-  }
-
-  // Reset the event.
-  template <typename Lock>
-  void clear(Lock& lock)
-  {
-    ASIO_ASSERT(lock.locked());
-    (void)lock;
-    state_ &= ~std::size_t(1);
-  }
-
-  // Wait for the event to become signalled.
-  template <typename Lock>
-  void wait(Lock& lock)
-  {
-    ASIO_ASSERT(lock.locked());
-    while ((state_ & 1) == 0)
-    {
-      state_ += 2;
-      ::pthread_cond_wait(&cond_, &lock.mutex().mutex_); // Ignore EINVAL.
-      state_ -= 2;
-    }
-  }
-
-  // Timed wait for the event to become signalled.
-  template <typename Lock>
-  bool wait_for_usec(Lock& lock, long usec)
-  {
-    ASIO_ASSERT(lock.locked());
-    if ((state_ & 1) == 0)
-    {
-      state_ += 2;
-      timespec ts;
-#if (defined(__MACH__) && defined(__APPLE__)) \
-      || (defined(__ANDROID__) && (__ANDROID_API__ < 21) \
-          && defined(HAVE_PTHREAD_COND_TIMEDWAIT_RELATIVE))
-      ts.tv_sec = usec / 1000000;
-      ts.tv_nsec = (usec % 1000000) * 1000;
-      ::pthread_cond_timedwait_relative_np(
-          &cond_, &lock.mutex().mutex_, &ts); // Ignore EINVAL.
-#else // (defined(__MACH__) && defined(__APPLE__))
-      // || (defined(__ANDROID__) && (__ANDROID_API__ < 21)
-      //     && defined(HAVE_PTHREAD_COND_TIMEDWAIT_RELATIVE))
-      if (::clock_gettime(CLOCK_MONOTONIC, &ts) == 0)
-      {
-        ts.tv_sec += usec / 1000000;
-        ts.tv_nsec = (usec % 1000000) * 1000;
-        ts.tv_sec += ts.tv_nsec / 1000000000;
-        ts.tv_nsec = ts.tv_nsec % 1000000000;
-        ::pthread_cond_timedwait(&cond_,
-            &lock.mutex().mutex_, &ts); // Ignore EINVAL.
-      }
-#endif // (defined(__MACH__) && defined(__APPLE__))
-       // || (defined(__ANDROID__) && (__ANDROID_API__ < 21)
-       //     && defined(HAVE_PTHREAD_COND_TIMEDWAIT_RELATIVE))
-      state_ -= 2;
-    }
-    return (state_ & 1) != 0;
-  }
-
-private:
-  ::pthread_cond_t cond_;
-  std::size_t state_;
-};
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#if defined(ASIO_HEADER_ONLY)
-# include "asio/detail/impl/posix_event.ipp"
-#endif // defined(ASIO_HEADER_ONLY)
-
-#endif // defined(ASIO_HAS_PTHREADS)
-
-#endif // ASIO_DETAIL_POSIX_EVENT_HPP
diff --git a/lib/asio/detail/posix_fd_set_adapter.hpp b/lib/asio/detail/posix_fd_set_adapter.hpp
deleted file mode 100644
index 95042d6..0000000
--- a/lib/asio/detail/posix_fd_set_adapter.hpp
+++ /dev/null
@@ -1,118 +0,0 @@
-//
-// detail/posix_fd_set_adapter.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_POSIX_FD_SET_ADAPTER_HPP
-#define ASIO_DETAIL_POSIX_FD_SET_ADAPTER_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-
-#if !defined(ASIO_WINDOWS) \
-  && !defined(__CYGWIN__) \
-  && !defined(ASIO_WINDOWS_RUNTIME)
-
-#include <cstring>
-#include "asio/detail/noncopyable.hpp"
-#include "asio/detail/reactor_op_queue.hpp"
-#include "asio/detail/socket_types.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-// Adapts the FD_SET type to meet the Descriptor_Set concept's requirements.
-class posix_fd_set_adapter : noncopyable
-{
-public:
-  posix_fd_set_adapter()
-    : max_descriptor_(invalid_socket)
-  {
-    using namespace std; // Needed for memset on Solaris.
-    FD_ZERO(&fd_set_);
-  }
-
-  void reset()
-  {
-    using namespace std; // Needed for memset on Solaris.
-    FD_ZERO(&fd_set_);
-  }
-
-  bool set(socket_type descriptor)
-  {
-    if (descriptor < (socket_type)FD_SETSIZE)
-    {
-      if (max_descriptor_ == invalid_socket || descriptor > max_descriptor_)
-        max_descriptor_ = descriptor;
-      FD_SET(descriptor, &fd_set_);
-      return true;
-    }
-    return false;
-  }
-
-  void set(reactor_op_queue<socket_type>& operations, op_queue<operation>& ops)
-  {
-    reactor_op_queue<socket_type>::iterator i = operations.begin();
-    while (i != operations.end())
-    {
-      reactor_op_queue<socket_type>::iterator op_iter = i++;
-      if (!set(op_iter->first))
-      {
-        asio::error_code ec(error::fd_set_failure);
-        operations.cancel_operations(op_iter, ops, ec);
-      }
-    }
-  }
-
-  bool is_set(socket_type descriptor) const
-  {
-    return FD_ISSET(descriptor, &fd_set_) != 0;
-  }
-
-  operator fd_set*()
-  {
-    return &fd_set_;
-  }
-
-  socket_type max_descriptor() const
-  {
-    return max_descriptor_;
-  }
-
-  void perform(reactor_op_queue<socket_type>& operations,
-      op_queue<operation>& ops) const
-  {
-    reactor_op_queue<socket_type>::iterator i = operations.begin();
-    while (i != operations.end())
-    {
-      reactor_op_queue<socket_type>::iterator op_iter = i++;
-      if (is_set(op_iter->first))
-        operations.perform_operations(op_iter, ops);
-    }
-  }
-
-private:
-  mutable fd_set fd_set_;
-  socket_type max_descriptor_;
-};
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // !defined(ASIO_WINDOWS)
-       // && !defined(__CYGWIN__)
-       // && !defined(ASIO_WINDOWS_RUNTIME)
-
-#endif // ASIO_DETAIL_POSIX_FD_SET_ADAPTER_HPP
diff --git a/lib/asio/detail/posix_global.hpp b/lib/asio/detail/posix_global.hpp
deleted file mode 100644
index 7ee0a71..0000000
--- a/lib/asio/detail/posix_global.hpp
+++ /dev/null
@@ -1,80 +0,0 @@
-//
-// detail/posix_global.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_POSIX_GLOBAL_HPP
-#define ASIO_DETAIL_POSIX_GLOBAL_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-
-#if defined(ASIO_HAS_PTHREADS)
-
-#include <exception>
-#include <pthread.h>
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-template <typename T>
-struct posix_global_impl
-{
-  // Helper function to perform initialisation.
-  static void do_init()
-  {
-    instance_.static_ptr_ = instance_.ptr_ = new T;
-  }
-
-  // Destructor automatically cleans up the global.
-  ~posix_global_impl()
-  {
-    delete static_ptr_;
-  }
-
-  static ::pthread_once_t init_once_;
-  static T* static_ptr_;
-  static posix_global_impl instance_;
-  T* ptr_;
-};
-
-template <typename T>
-::pthread_once_t posix_global_impl<T>::init_once_ = PTHREAD_ONCE_INIT;
-
-template <typename T>
-T* posix_global_impl<T>::static_ptr_ = 0;
-
-template <typename T>
-posix_global_impl<T> posix_global_impl<T>::instance_;
-
-template <typename T>
-T& posix_global()
-{
-  int result = ::pthread_once(
-      &posix_global_impl<T>::init_once_,
-      &posix_global_impl<T>::do_init);
-
-  if (result != 0)
-    std::terminate();
-
-  return *posix_global_impl<T>::instance_.ptr_;
-}
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // defined(ASIO_HAS_PTHREADS)
-
-#endif // ASIO_DETAIL_POSIX_GLOBAL_HPP
diff --git a/lib/asio/detail/posix_mutex.hpp b/lib/asio/detail/posix_mutex.hpp
deleted file mode 100644
index c0d9fc9..0000000
--- a/lib/asio/detail/posix_mutex.hpp
+++ /dev/null
@@ -1,76 +0,0 @@
-//
-// detail/posix_mutex.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_POSIX_MUTEX_HPP
-#define ASIO_DETAIL_POSIX_MUTEX_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-
-#if defined(ASIO_HAS_PTHREADS)
-
-#include <pthread.h>
-#include "asio/detail/noncopyable.hpp"
-#include "asio/detail/scoped_lock.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-class posix_event;
-
-class posix_mutex
-  : private noncopyable
-{
-public:
-  typedef asio::detail::scoped_lock<posix_mutex> scoped_lock;
-
-  // Constructor.
-  ASIO_DECL posix_mutex();
-
-  // Destructor.
-  ~posix_mutex()
-  {
-    ::pthread_mutex_destroy(&mutex_); // Ignore EBUSY.
-  }
-
-  // Lock the mutex.
-  void lock()
-  {
-    (void)::pthread_mutex_lock(&mutex_); // Ignore EINVAL.
-  }
-
-  // Unlock the mutex.
-  void unlock()
-  {
-    (void)::pthread_mutex_unlock(&mutex_); // Ignore EINVAL.
-  }
-
-private:
-  friend class posix_event;
-  ::pthread_mutex_t mutex_;
-};
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#if defined(ASIO_HEADER_ONLY)
-# include "asio/detail/impl/posix_mutex.ipp"
-#endif // defined(ASIO_HEADER_ONLY)
-
-#endif // defined(ASIO_HAS_PTHREADS)
-
-#endif // ASIO_DETAIL_POSIX_MUTEX_HPP
diff --git a/lib/asio/detail/posix_signal_blocker.hpp b/lib/asio/detail/posix_signal_blocker.hpp
deleted file mode 100644
index fab5eb1..0000000
--- a/lib/asio/detail/posix_signal_blocker.hpp
+++ /dev/null
@@ -1,85 +0,0 @@
-//
-// detail/posix_signal_blocker.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_POSIX_SIGNAL_BLOCKER_HPP
-#define ASIO_DETAIL_POSIX_SIGNAL_BLOCKER_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-
-#if defined(ASIO_HAS_PTHREADS)
-
-#include <csignal>
-#include <pthread.h>
-#include <signal.h>
-#include "asio/detail/noncopyable.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-class posix_signal_blocker
-  : private noncopyable
-{
-public:
-  // Constructor blocks all signals for the calling thread.
-  posix_signal_blocker()
-    : blocked_(false)
-  {
-    sigset_t new_mask;
-    sigfillset(&new_mask);
-    blocked_ = (pthread_sigmask(SIG_BLOCK, &new_mask, &old_mask_) == 0);
-  }
-
-  // Destructor restores the previous signal mask.
-  ~posix_signal_blocker()
-  {
-    if (blocked_)
-      pthread_sigmask(SIG_SETMASK, &old_mask_, 0);
-  }
-
-  // Block all signals for the calling thread.
-  void block()
-  {
-    if (!blocked_)
-    {
-      sigset_t new_mask;
-      sigfillset(&new_mask);
-      blocked_ = (pthread_sigmask(SIG_BLOCK, &new_mask, &old_mask_) == 0);
-    }
-  }
-
-  // Restore the previous signal mask.
-  void unblock()
-  {
-    if (blocked_)
-      blocked_ = (pthread_sigmask(SIG_SETMASK, &old_mask_, 0) != 0);
-  }
-
-private:
-  // Have signals been blocked.
-  bool blocked_;
-
-  // The previous signal mask.
-  sigset_t old_mask_;
-};
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // defined(ASIO_HAS_PTHREADS)
-
-#endif // ASIO_DETAIL_POSIX_SIGNAL_BLOCKER_HPP
diff --git a/lib/asio/detail/posix_static_mutex.hpp b/lib/asio/detail/posix_static_mutex.hpp
deleted file mode 100644
index 59b86c1..0000000
--- a/lib/asio/detail/posix_static_mutex.hpp
+++ /dev/null
@@ -1,64 +0,0 @@
-//
-// detail/posix_static_mutex.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_POSIX_STATIC_MUTEX_HPP
-#define ASIO_DETAIL_POSIX_STATIC_MUTEX_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-
-#if defined(ASIO_HAS_PTHREADS)
-
-#include <pthread.h>
-#include "asio/detail/scoped_lock.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-struct posix_static_mutex
-{
-  typedef asio::detail::scoped_lock<posix_static_mutex> scoped_lock;
-
-  // Initialise the mutex.
-  void init()
-  {
-    // Nothing to do.
-  }
-
-  // Lock the mutex.
-  void lock()
-  {
-    (void)::pthread_mutex_lock(&mutex_); // Ignore EINVAL.
-  }
-
-  // Unlock the mutex.
-  void unlock()
-  {
-    (void)::pthread_mutex_unlock(&mutex_); // Ignore EINVAL.
-  }
-
-  ::pthread_mutex_t mutex_;
-};
-
-#define ASIO_POSIX_STATIC_MUTEX_INIT { PTHREAD_MUTEX_INITIALIZER }
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // defined(ASIO_HAS_PTHREADS)
-
-#endif // ASIO_DETAIL_POSIX_STATIC_MUTEX_HPP
diff --git a/lib/asio/detail/posix_thread.hpp b/lib/asio/detail/posix_thread.hpp
deleted file mode 100644
index 1817af2..0000000
--- a/lib/asio/detail/posix_thread.hpp
+++ /dev/null
@@ -1,109 +0,0 @@
-//
-// detail/posix_thread.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_POSIX_THREAD_HPP
-#define ASIO_DETAIL_POSIX_THREAD_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-
-#if defined(ASIO_HAS_PTHREADS)
-
-#include <cstddef>
-#include <pthread.h>
-#include "asio/detail/noncopyable.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-extern "C"
-{
-  ASIO_DECL void* asio_detail_posix_thread_function(void* arg);
-}
-
-class posix_thread
-  : private noncopyable
-{
-public:
-  // Constructor.
-  template <typename Function>
-  posix_thread(Function f, unsigned int = 0)
-    : joined_(false)
-  {
-    start_thread(new func<Function>(f));
-  }
-
-  // Destructor.
-  ASIO_DECL ~posix_thread();
-
-  // Wait for the thread to exit.
-  ASIO_DECL void join();
-
-  // Get number of CPUs.
-  ASIO_DECL static std::size_t hardware_concurrency();
-
-private:
-  friend void* asio_detail_posix_thread_function(void* arg);
-
-  class func_base
-  {
-  public:
-    virtual ~func_base() {}
-    virtual void run() = 0;
-  };
-
-  struct auto_func_base_ptr
-  {
-    func_base* ptr;
-    ~auto_func_base_ptr() { delete ptr; }
-  };
-
-  template <typename Function>
-  class func
-    : public func_base
-  {
-  public:
-    func(Function f)
-      : f_(f)
-    {
-    }
-
-    virtual void run()
-    {
-      f_();
-    }
-
-  private:
-    Function f_;
-  };
-
-  ASIO_DECL void start_thread(func_base* arg);
-
-  ::pthread_t thread_;
-  bool joined_;
-};
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#if defined(ASIO_HEADER_ONLY)
-# include "asio/detail/impl/posix_thread.ipp"
-#endif // defined(ASIO_HEADER_ONLY)
-
-#endif // defined(ASIO_HAS_PTHREADS)
-
-#endif // ASIO_DETAIL_POSIX_THREAD_HPP
diff --git a/lib/asio/detail/posix_tss_ptr.hpp b/lib/asio/detail/posix_tss_ptr.hpp
deleted file mode 100644
index a3096b4..0000000
--- a/lib/asio/detail/posix_tss_ptr.hpp
+++ /dev/null
@@ -1,79 +0,0 @@
-//
-// detail/posix_tss_ptr.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_POSIX_TSS_PTR_HPP
-#define ASIO_DETAIL_POSIX_TSS_PTR_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-
-#if defined(ASIO_HAS_PTHREADS)
-
-#include <pthread.h>
-#include "asio/detail/noncopyable.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-// Helper function to create thread-specific storage.
-ASIO_DECL void posix_tss_ptr_create(pthread_key_t& key);
-
-template <typename T>
-class posix_tss_ptr
-  : private noncopyable
-{
-public:
-  // Constructor.
-  posix_tss_ptr()
-  {
-    posix_tss_ptr_create(tss_key_);
-  }
-
-  // Destructor.
-  ~posix_tss_ptr()
-  {
-    ::pthread_key_delete(tss_key_);
-  }
-
-  // Get the value.
-  operator T*() const
-  {
-    return static_cast<T*>(::pthread_getspecific(tss_key_));
-  }
-
-  // Set the value.
-  void operator=(T* value)
-  {
-    ::pthread_setspecific(tss_key_, value);
-  }
-
-private:
-  // Thread-specific storage to allow unlocked access to determine whether a
-  // thread is a member of the pool.
-  pthread_key_t tss_key_;
-};
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#if defined(ASIO_HEADER_ONLY)
-# include "asio/detail/impl/posix_tss_ptr.ipp"
-#endif // defined(ASIO_HEADER_ONLY)
-
-#endif // defined(ASIO_HAS_PTHREADS)
-
-#endif // ASIO_DETAIL_POSIX_TSS_PTR_HPP
diff --git a/lib/asio/detail/push_options.hpp b/lib/asio/detail/push_options.hpp
deleted file mode 100644
index 0a3e979..0000000
--- a/lib/asio/detail/push_options.hpp
+++ /dev/null
@@ -1,175 +0,0 @@
-//
-// detail/push_options.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-// No header guard
-
-#if defined(__COMO__)
-
-// Comeau C++
-
-#elif defined(__DMC__)
-
-// Digital Mars C++
-
-#elif defined(__INTEL_COMPILER) || defined(__ICL) \
-  || defined(__ICC) || defined(__ECC)
-
-// Intel C++
-
-# if (__GNUC__ == 4 && __GNUC_MINOR__ >= 1) || (__GNUC__ > 4)
-#  pragma GCC visibility push (default)
-# endif // (__GNUC__ == 4 && __GNUC_MINOR__ >= 1) || (__GNUC__ > 4)
-
-#elif defined(__clang__)
-
-// Clang
-
-# if defined(__OBJC__)
-#  if !defined(__APPLE_CC__) || (__APPLE_CC__ <= 1)
-#   if !defined(ASIO_DISABLE_OBJC_WORKAROUND)
-#    if !defined(Protocol) && !defined(id)
-#     define Protocol cpp_Protocol
-#     define id cpp_id
-#     define ASIO_OBJC_WORKAROUND
-#    endif
-#   endif
-#  endif
-# endif
-
-# if !defined(_WIN32) && !defined(__WIN32__) && !defined(WIN32)
-#  pragma GCC visibility push (default)
-# endif // !defined(_WIN32) && !defined(__WIN32__) && !defined(WIN32)
-
-#elif defined(__GNUC__)
-
-// GNU C++
-
-# if defined(__MINGW32__) || defined(__CYGWIN__)
-#  pragma pack (push, 8)
-# endif
-
-# if defined(__OBJC__)
-#  if !defined(__APPLE_CC__) || (__APPLE_CC__ <= 1)
-#   if !defined(ASIO_DISABLE_OBJC_WORKAROUND)
-#    if !defined(Protocol) && !defined(id)
-#     define Protocol cpp_Protocol
-#     define id cpp_id
-#     define ASIO_OBJC_WORKAROUND
-#    endif
-#   endif
-#  endif
-# endif
-
-# if (__GNUC__ == 4 && __GNUC_MINOR__ >= 1) || (__GNUC__ > 4)
-#  pragma GCC visibility push (default)
-# endif // (__GNUC__ == 4 && __GNUC_MINOR__ >= 1) || (__GNUC__ > 4)
-
-# if (__GNUC__ >= 7)
-#  pragma GCC diagnostic push
-#  pragma GCC diagnostic ignored "-Wimplicit-fallthrough"
-# endif // (__GNUC__ >= 7)
-
-#elif defined(__KCC)
-
-// Kai C++
-
-#elif defined(__sgi)
-
-// SGI MIPSpro C++
-
-#elif defined(__DECCXX)
-
-// Compaq Tru64 Unix cxx
-
-#elif defined(__ghs)
-
-// Greenhills C++
-
-#elif defined(__BORLANDC__)
-
-// Borland C++
-
-# pragma option push -a8 -b -Ve- -Vx- -w-inl -vi-
-# pragma nopushoptwarn
-# pragma nopackwarning
-# if !defined(__MT__)
-#  error Multithreaded RTL must be selected.
-# endif // !defined(__MT__)
-
-#elif defined(__MWERKS__)
-
-// Metrowerks CodeWarrior
-
-#elif defined(__SUNPRO_CC)
-
-// Sun Workshop Compiler C++
-
-#elif defined(__HP_aCC)
-
-// HP aCC
-
-#elif defined(__MRC__) || defined(__SC__)
-
-// MPW MrCpp or SCpp
-
-#elif defined(__IBMCPP__)
-
-// IBM Visual Age
-
-#elif defined(_MSC_VER)
-
-// Microsoft Visual C++
-//
-// Must remain the last #elif since some other vendors (Metrowerks, for example)
-// also #define _MSC_VER
-
-# pragma warning (disable:4103)
-# pragma warning (push)
-# pragma warning (disable:4127)
-# pragma warning (disable:4180)
-# pragma warning (disable:4244)
-# pragma warning (disable:4355)
-# pragma warning (disable:4510)
-# pragma warning (disable:4512)
-# pragma warning (disable:4610)
-# pragma warning (disable:4675)
-# if (_MSC_VER < 1600)
-// Visual Studio 2008 generates spurious warnings about unused parameters.
-#  pragma warning (disable:4100)
-# endif // (_MSC_VER < 1600)
-# if defined(_M_IX86) && defined(_Wp64)
-// The /Wp64 option is broken. If you want to check 64 bit portability, use a
-// 64 bit compiler!
-#  pragma warning (disable:4311)
-#  pragma warning (disable:4312)
-# endif // defined(_M_IX86) && defined(_Wp64)
-# pragma pack (push, 8)
-// Note that if the /Og optimisation flag is enabled with MSVC6, the compiler
-// has a tendency to incorrectly optimise away some calls to member template
-// functions, even though those functions contain code that should not be
-// optimised away! Therefore we will always disable this optimisation option
-// for the MSVC6 compiler.
-# if (_MSC_VER < 1300)
-#  pragma optimize ("g", off)
-# endif
-# if !defined(_MT)
-#  error Multithreaded RTL must be selected.
-# endif // !defined(_MT)
-
-# if defined(__cplusplus_cli) || defined(__cplusplus_winrt)
-#  if !defined(ASIO_DISABLE_CLR_WORKAROUND)
-#   if !defined(generic)
-#    define generic cpp_generic
-#    define ASIO_CLR_WORKAROUND
-#   endif
-#  endif
-# endif
-
-#endif
diff --git a/lib/asio/detail/reactive_descriptor_service.hpp b/lib/asio/detail/reactive_descriptor_service.hpp
deleted file mode 100644
index e866863..0000000
--- a/lib/asio/detail/reactive_descriptor_service.hpp
+++ /dev/null
@@ -1,388 +0,0 @@
-//
-// detail/reactive_descriptor_service.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_REACTIVE_DESCRIPTOR_SERVICE_HPP
-#define ASIO_DETAIL_REACTIVE_DESCRIPTOR_SERVICE_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-
-#if !defined(ASIO_WINDOWS) \
-  && !defined(ASIO_WINDOWS_RUNTIME) \
-  && !defined(__CYGWIN__)
-
-#include "asio/buffer.hpp"
-#include "asio/io_context.hpp"
-#include "asio/detail/bind_handler.hpp"
-#include "asio/detail/buffer_sequence_adapter.hpp"
-#include "asio/detail/descriptor_ops.hpp"
-#include "asio/detail/descriptor_read_op.hpp"
-#include "asio/detail/descriptor_write_op.hpp"
-#include "asio/detail/fenced_block.hpp"
-#include "asio/detail/memory.hpp"
-#include "asio/detail/noncopyable.hpp"
-#include "asio/detail/reactive_null_buffers_op.hpp"
-#include "asio/detail/reactive_wait_op.hpp"
-#include "asio/detail/reactor.hpp"
-#include "asio/posix/descriptor_base.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-class reactive_descriptor_service :
-  public service_base<reactive_descriptor_service>
-{
-public:
-  // The native type of a descriptor.
-  typedef int native_handle_type;
-
-  // The implementation type of the descriptor.
-  class implementation_type
-    : private asio::detail::noncopyable
-  {
-  public:
-    // Default constructor.
-    implementation_type()
-      : descriptor_(-1),
-        state_(0)
-    {
-    }
-
-  private:
-    // Only this service will have access to the internal values.
-    friend class reactive_descriptor_service;
-
-    // The native descriptor representation.
-    int descriptor_;
-
-    // The current state of the descriptor.
-    descriptor_ops::state_type state_;
-
-    // Per-descriptor data used by the reactor.
-    reactor::per_descriptor_data reactor_data_;
-  };
-
-  // Constructor.
-  ASIO_DECL reactive_descriptor_service(
-      asio::io_context& io_context);
-
-  // Destroy all user-defined handler objects owned by the service.
-  ASIO_DECL void shutdown();
-
-  // Construct a new descriptor implementation.
-  ASIO_DECL void construct(implementation_type& impl);
-
-  // Move-construct a new descriptor implementation.
-  ASIO_DECL void move_construct(implementation_type& impl,
-      implementation_type& other_impl);
-
-  // Move-assign from another descriptor implementation.
-  ASIO_DECL void move_assign(implementation_type& impl,
-      reactive_descriptor_service& other_service,
-      implementation_type& other_impl);
-
-  // Destroy a descriptor implementation.
-  ASIO_DECL void destroy(implementation_type& impl);
-
-  // Assign a native descriptor to a descriptor implementation.
-  ASIO_DECL asio::error_code assign(implementation_type& impl,
-      const native_handle_type& native_descriptor,
-      asio::error_code& ec);
-
-  // Determine whether the descriptor is open.
-  bool is_open(const implementation_type& impl) const
-  {
-    return impl.descriptor_ != -1;
-  }
-
-  // Destroy a descriptor implementation.
-  ASIO_DECL asio::error_code close(implementation_type& impl,
-      asio::error_code& ec);
-
-  // Get the native descriptor representation.
-  native_handle_type native_handle(const implementation_type& impl) const
-  {
-    return impl.descriptor_;
-  }
-
-  // Release ownership of the native descriptor representation.
-  ASIO_DECL native_handle_type release(implementation_type& impl);
-
-  // Cancel all operations associated with the descriptor.
-  ASIO_DECL asio::error_code cancel(implementation_type& impl,
-      asio::error_code& ec);
-
-  // Perform an IO control command on the descriptor.
-  template <typename IO_Control_Command>
-  asio::error_code io_control(implementation_type& impl,
-      IO_Control_Command& command, asio::error_code& ec)
-  {
-    descriptor_ops::ioctl(impl.descriptor_, impl.state_,
-        command.name(), static_cast<ioctl_arg_type*>(command.data()), ec);
-    return ec;
-  }
-
-  // Gets the non-blocking mode of the descriptor.
-  bool non_blocking(const implementation_type& impl) const
-  {
-    return (impl.state_ & descriptor_ops::user_set_non_blocking) != 0;
-  }
-
-  // Sets the non-blocking mode of the descriptor.
-  asio::error_code non_blocking(implementation_type& impl,
-      bool mode, asio::error_code& ec)
-  {
-    descriptor_ops::set_user_non_blocking(
-        impl.descriptor_, impl.state_, mode, ec);
-    return ec;
-  }
-
-  // Gets the non-blocking mode of the native descriptor implementation.
-  bool native_non_blocking(const implementation_type& impl) const
-  {
-    return (impl.state_ & descriptor_ops::internal_non_blocking) != 0;
-  }
-
-  // Sets the non-blocking mode of the native descriptor implementation.
-  asio::error_code native_non_blocking(implementation_type& impl,
-      bool mode, asio::error_code& ec)
-  {
-    descriptor_ops::set_internal_non_blocking(
-        impl.descriptor_, impl.state_, mode, ec);
-    return ec;
-  }
-
-  // Wait for the descriptor to become ready to read, ready to write, or to have
-  // pending error conditions.
-  asio::error_code wait(implementation_type& impl,
-      posix::descriptor_base::wait_type w, asio::error_code& ec)
-  {
-    switch (w)
-    {
-    case posix::descriptor_base::wait_read:
-      descriptor_ops::poll_read(impl.descriptor_, impl.state_, ec);
-      break;
-    case posix::descriptor_base::wait_write:
-      descriptor_ops::poll_write(impl.descriptor_, impl.state_, ec);
-      break;
-    case posix::descriptor_base::wait_error:
-      descriptor_ops::poll_error(impl.descriptor_, impl.state_, ec);
-      break;
-    default:
-      ec = asio::error::invalid_argument;
-      break;
-    }
-
-    return ec;
-  }
-
-  // Asynchronously wait for the descriptor to become ready to read, ready to
-  // write, or to have pending error conditions.
-  template <typename Handler>
-  void async_wait(implementation_type& impl,
-      posix::descriptor_base::wait_type w, Handler& handler)
-  {
-    bool is_continuation =
-      asio_handler_cont_helpers::is_continuation(handler);
-
-    // Allocate and construct an operation to wrap the handler.
-    typedef reactive_wait_op<Handler> op;
-    typename op::ptr p = { asio::detail::addressof(handler),
-      op::ptr::allocate(handler), 0 };
-    p.p = new (p.v) op(handler);
-
-    ASIO_HANDLER_CREATION((reactor_.context(), *p.p, "descriptor",
-          &impl, impl.descriptor_, "async_wait"));
-
-    int op_type;
-    switch (w)
-    {
-    case posix::descriptor_base::wait_read:
-        op_type = reactor::read_op;
-        break;
-    case posix::descriptor_base::wait_write:
-        op_type = reactor::write_op;
-        break;
-    case posix::descriptor_base::wait_error:
-        op_type = reactor::except_op;
-        break;
-      default:
-        p.p->ec_ = asio::error::invalid_argument;
-        reactor_.post_immediate_completion(p.p, is_continuation);
-        p.v = p.p = 0;
-        return;
-    }
-
-    start_op(impl, op_type, p.p, is_continuation, false, false);
-    p.v = p.p = 0;
-  }
-
-  // Write some data to the descriptor.
-  template <typename ConstBufferSequence>
-  size_t write_some(implementation_type& impl,
-      const ConstBufferSequence& buffers, asio::error_code& ec)
-  {
-    buffer_sequence_adapter<asio::const_buffer,
-        ConstBufferSequence> bufs(buffers);
-
-    return descriptor_ops::sync_write(impl.descriptor_, impl.state_,
-        bufs.buffers(), bufs.count(), bufs.all_empty(), ec);
-  }
-
-  // Wait until data can be written without blocking.
-  size_t write_some(implementation_type& impl,
-      const null_buffers&, asio::error_code& ec)
-  {
-    // Wait for descriptor to become ready.
-    descriptor_ops::poll_write(impl.descriptor_, impl.state_, ec);
-
-    return 0;
-  }
-
-  // Start an asynchronous write. The data being sent must be valid for the
-  // lifetime of the asynchronous operation.
-  template <typename ConstBufferSequence, typename Handler>
-  void async_write_some(implementation_type& impl,
-      const ConstBufferSequence& buffers, Handler& handler)
-  {
-    bool is_continuation =
-      asio_handler_cont_helpers::is_continuation(handler);
-
-    // Allocate and construct an operation to wrap the handler.
-    typedef descriptor_write_op<ConstBufferSequence, Handler> op;
-    typename op::ptr p = { asio::detail::addressof(handler),
-      op::ptr::allocate(handler), 0 };
-    p.p = new (p.v) op(impl.descriptor_, buffers, handler);
-
-    ASIO_HANDLER_CREATION((reactor_.context(), *p.p, "descriptor",
-          &impl, impl.descriptor_, "async_write_some"));
-
-    start_op(impl, reactor::write_op, p.p, is_continuation, true,
-        buffer_sequence_adapter<asio::const_buffer,
-          ConstBufferSequence>::all_empty(buffers));
-    p.v = p.p = 0;
-  }
-
-  // Start an asynchronous wait until data can be written without blocking.
-  template <typename Handler>
-  void async_write_some(implementation_type& impl,
-      const null_buffers&, Handler& handler)
-  {
-    bool is_continuation =
-      asio_handler_cont_helpers::is_continuation(handler);
-
-    // Allocate and construct an operation to wrap the handler.
-    typedef reactive_null_buffers_op<Handler> op;
-    typename op::ptr p = { asio::detail::addressof(handler),
-      op::ptr::allocate(handler), 0 };
-    p.p = new (p.v) op(handler);
-
-    ASIO_HANDLER_CREATION((reactor_.context(), *p.p, "descriptor",
-          &impl, impl.descriptor_, "async_write_some(null_buffers)"));
-
-    start_op(impl, reactor::write_op, p.p, is_continuation, false, false);
-    p.v = p.p = 0;
-  }
-
-  // Read some data from the stream. Returns the number of bytes read.
-  template <typename MutableBufferSequence>
-  size_t read_some(implementation_type& impl,
-      const MutableBufferSequence& buffers, asio::error_code& ec)
-  {
-    buffer_sequence_adapter<asio::mutable_buffer,
-        MutableBufferSequence> bufs(buffers);
-
-    return descriptor_ops::sync_read(impl.descriptor_, impl.state_,
-        bufs.buffers(), bufs.count(), bufs.all_empty(), ec);
-  }
-
-  // Wait until data can be read without blocking.
-  size_t read_some(implementation_type& impl,
-      const null_buffers&, asio::error_code& ec)
-  {
-    // Wait for descriptor to become ready.
-    descriptor_ops::poll_read(impl.descriptor_, impl.state_, ec);
-
-    return 0;
-  }
-
-  // Start an asynchronous read. The buffer for the data being read must be
-  // valid for the lifetime of the asynchronous operation.
-  template <typename MutableBufferSequence, typename Handler>
-  void async_read_some(implementation_type& impl,
-      const MutableBufferSequence& buffers, Handler& handler)
-  {
-    bool is_continuation =
-      asio_handler_cont_helpers::is_continuation(handler);
-
-    // Allocate and construct an operation to wrap the handler.
-    typedef descriptor_read_op<MutableBufferSequence, Handler> op;
-    typename op::ptr p = { asio::detail::addressof(handler),
-      op::ptr::allocate(handler), 0 };
-    p.p = new (p.v) op(impl.descriptor_, buffers, handler);
-
-    ASIO_HANDLER_CREATION((reactor_.context(), *p.p, "descriptor",
-          &impl, impl.descriptor_, "async_read_some"));
-
-    start_op(impl, reactor::read_op, p.p, is_continuation, true,
-        buffer_sequence_adapter<asio::mutable_buffer,
-          MutableBufferSequence>::all_empty(buffers));
-    p.v = p.p = 0;
-  }
-
-  // Wait until data can be read without blocking.
-  template <typename Handler>
-  void async_read_some(implementation_type& impl,
-      const null_buffers&, Handler& handler)
-  {
-    bool is_continuation =
-      asio_handler_cont_helpers::is_continuation(handler);
-
-    // Allocate and construct an operation to wrap the handler.
-    typedef reactive_null_buffers_op<Handler> op;
-    typename op::ptr p = { asio::detail::addressof(handler),
-      op::ptr::allocate(handler), 0 };
-    p.p = new (p.v) op(handler);
-
-    ASIO_HANDLER_CREATION((reactor_.context(), *p.p, "descriptor",
-          &impl, impl.descriptor_, "async_read_some(null_buffers)"));
-
-    start_op(impl, reactor::read_op, p.p, is_continuation, false, false);
-    p.v = p.p = 0;
-  }
-
-private:
-  // Start the asynchronous operation.
-  ASIO_DECL void start_op(implementation_type& impl, int op_type,
-      reactor_op* op, bool is_continuation, bool is_non_blocking, bool noop);
-
-  // The selector that performs event demultiplexing for the service.
-  reactor& reactor_;
-};
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#if defined(ASIO_HEADER_ONLY)
-# include "asio/detail/impl/reactive_descriptor_service.ipp"
-#endif // defined(ASIO_HEADER_ONLY)
-
-#endif // !defined(ASIO_WINDOWS)
-       //   && !defined(ASIO_WINDOWS_RUNTIME)
-       //   && !defined(__CYGWIN__)
-
-#endif // ASIO_DETAIL_REACTIVE_DESCRIPTOR_SERVICE_HPP
diff --git a/lib/asio/detail/reactive_null_buffers_op.hpp b/lib/asio/detail/reactive_null_buffers_op.hpp
deleted file mode 100644
index 7408269..0000000
--- a/lib/asio/detail/reactive_null_buffers_op.hpp
+++ /dev/null
@@ -1,90 +0,0 @@
-//
-// detail/reactive_null_buffers_op.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_REACTIVE_NULL_BUFFERS_OP_HPP
-#define ASIO_DETAIL_REACTIVE_NULL_BUFFERS_OP_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-#include "asio/detail/fenced_block.hpp"
-#include "asio/detail/handler_alloc_helpers.hpp"
-#include "asio/detail/handler_invoke_helpers.hpp"
-#include "asio/detail/memory.hpp"
-#include "asio/detail/reactor_op.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-template <typename Handler>
-class reactive_null_buffers_op : public reactor_op
-{
-public:
-  ASIO_DEFINE_HANDLER_PTR(reactive_null_buffers_op);
-
-  reactive_null_buffers_op(Handler& handler)
-    : reactor_op(&reactive_null_buffers_op::do_perform,
-        &reactive_null_buffers_op::do_complete),
-      handler_(ASIO_MOVE_CAST(Handler)(handler))
-  {
-    handler_work<Handler>::start(handler_);
-  }
-
-  static status do_perform(reactor_op*)
-  {
-    return done;
-  }
-
-  static void do_complete(void* owner, operation* base,
-      const asio::error_code& /*ec*/,
-      std::size_t /*bytes_transferred*/)
-  {
-    // Take ownership of the handler object.
-    reactive_null_buffers_op* o(static_cast<reactive_null_buffers_op*>(base));
-    ptr p = { asio::detail::addressof(o->handler_), o, o };
-    handler_work<Handler> w(o->handler_);
-
-    ASIO_HANDLER_COMPLETION((*o));
-
-    // Make a copy of the handler so that the memory can be deallocated before
-    // the upcall is made. Even if we're not about to make an upcall, a
-    // sub-object of the handler may be the true owner of the memory associated
-    // with the handler. Consequently, a local copy of the handler is required
-    // to ensure that any owning sub-object remains valid until after we have
-    // deallocated the memory here.
-    detail::binder2<Handler, asio::error_code, std::size_t>
-      handler(o->handler_, o->ec_, o->bytes_transferred_);
-    p.h = asio::detail::addressof(handler.handler_);
-    p.reset();
-
-    // Make the upcall if required.
-    if (owner)
-    {
-      fenced_block b(fenced_block::half);
-      ASIO_HANDLER_INVOCATION_BEGIN((handler.arg1_, handler.arg2_));
-      w.complete(handler, handler.handler_);
-      ASIO_HANDLER_INVOCATION_END;
-    }
-  }
-
-private:
-  Handler handler_;
-};
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // ASIO_DETAIL_REACTIVE_NULL_BUFFERS_OP_HPP
diff --git a/lib/asio/detail/reactive_serial_port_service.hpp b/lib/asio/detail/reactive_serial_port_service.hpp
deleted file mode 100644
index 6fddd9f..0000000
--- a/lib/asio/detail/reactive_serial_port_service.hpp
+++ /dev/null
@@ -1,236 +0,0 @@
-//
-// detail/reactive_serial_port_service.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-// Copyright (c) 2008 Rep Invariant Systems, Inc. (info@repinvariant.com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_REACTIVE_SERIAL_PORT_SERVICE_HPP
-#define ASIO_DETAIL_REACTIVE_SERIAL_PORT_SERVICE_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-
-#if defined(ASIO_HAS_SERIAL_PORT)
-#if !defined(ASIO_WINDOWS) && !defined(__CYGWIN__)
-
-#include <string>
-#include "asio/error.hpp"
-#include "asio/io_context.hpp"
-#include "asio/serial_port_base.hpp"
-#include "asio/detail/descriptor_ops.hpp"
-#include "asio/detail/reactive_descriptor_service.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-// Extend reactive_descriptor_service to provide serial port support.
-class reactive_serial_port_service :
-  public service_base<reactive_serial_port_service>
-{
-public:
-  // The native type of a serial port.
-  typedef reactive_descriptor_service::native_handle_type native_handle_type;
-
-  // The implementation type of the serial port.
-  typedef reactive_descriptor_service::implementation_type implementation_type;
-
-  ASIO_DECL reactive_serial_port_service(
-      asio::io_context& io_context);
-
-  // Destroy all user-defined handler objects owned by the service.
-  ASIO_DECL void shutdown();
-
-  // Construct a new serial port implementation.
-  void construct(implementation_type& impl)
-  {
-    descriptor_service_.construct(impl);
-  }
-
-  // Move-construct a new serial port implementation.
-  void move_construct(implementation_type& impl,
-      implementation_type& other_impl)
-  {
-    descriptor_service_.move_construct(impl, other_impl);
-  }
-
-  // Move-assign from another serial port implementation.
-  void move_assign(implementation_type& impl,
-      reactive_serial_port_service& other_service,
-      implementation_type& other_impl)
-  {
-    descriptor_service_.move_assign(impl,
-        other_service.descriptor_service_, other_impl);
-  }
-
-  // Destroy a serial port implementation.
-  void destroy(implementation_type& impl)
-  {
-    descriptor_service_.destroy(impl);
-  }
-
-  // Open the serial port using the specified device name.
-  ASIO_DECL asio::error_code open(implementation_type& impl,
-      const std::string& device, asio::error_code& ec);
-
-  // Assign a native descriptor to a serial port implementation.
-  asio::error_code assign(implementation_type& impl,
-      const native_handle_type& native_descriptor,
-      asio::error_code& ec)
-  {
-    return descriptor_service_.assign(impl, native_descriptor, ec);
-  }
-
-  // Determine whether the serial port is open.
-  bool is_open(const implementation_type& impl) const
-  {
-    return descriptor_service_.is_open(impl);
-  }
-
-  // Destroy a serial port implementation.
-  asio::error_code close(implementation_type& impl,
-      asio::error_code& ec)
-  {
-    return descriptor_service_.close(impl, ec);
-  }
-
-  // Get the native serial port representation.
-  native_handle_type native_handle(implementation_type& impl)
-  {
-    return descriptor_service_.native_handle(impl);
-  }
-
-  // Cancel all operations associated with the serial port.
-  asio::error_code cancel(implementation_type& impl,
-      asio::error_code& ec)
-  {
-    return descriptor_service_.cancel(impl, ec);
-  }
-
-  // Set an option on the serial port.
-  template <typename SettableSerialPortOption>
-  asio::error_code set_option(implementation_type& impl,
-      const SettableSerialPortOption& option, asio::error_code& ec)
-  {
-    return do_set_option(impl,
-        &reactive_serial_port_service::store_option<SettableSerialPortOption>,
-        &option, ec);
-  }
-
-  // Get an option from the serial port.
-  template <typename GettableSerialPortOption>
-  asio::error_code get_option(const implementation_type& impl,
-      GettableSerialPortOption& option, asio::error_code& ec) const
-  {
-    return do_get_option(impl,
-        &reactive_serial_port_service::load_option<GettableSerialPortOption>,
-        &option, ec);
-  }
-
-  // Send a break sequence to the serial port.
-  asio::error_code send_break(implementation_type& impl,
-      asio::error_code& ec)
-  {
-    errno = 0;
-    descriptor_ops::error_wrapper(::tcsendbreak(
-          descriptor_service_.native_handle(impl), 0), ec);
-    return ec;
-  }
-
-  // Write the given data. Returns the number of bytes sent.
-  template <typename ConstBufferSequence>
-  size_t write_some(implementation_type& impl,
-      const ConstBufferSequence& buffers, asio::error_code& ec)
-  {
-    return descriptor_service_.write_some(impl, buffers, ec);
-  }
-
-  // Start an asynchronous write. The data being written must be valid for the
-  // lifetime of the asynchronous operation.
-  template <typename ConstBufferSequence, typename Handler>
-  void async_write_some(implementation_type& impl,
-      const ConstBufferSequence& buffers, Handler& handler)
-  {
-    descriptor_service_.async_write_some(impl, buffers, handler);
-  }
-
-  // Read some data. Returns the number of bytes received.
-  template <typename MutableBufferSequence>
-  size_t read_some(implementation_type& impl,
-      const MutableBufferSequence& buffers, asio::error_code& ec)
-  {
-    return descriptor_service_.read_some(impl, buffers, ec);
-  }
-
-  // Start an asynchronous read. The buffer for the data being received must be
-  // valid for the lifetime of the asynchronous operation.
-  template <typename MutableBufferSequence, typename Handler>
-  void async_read_some(implementation_type& impl,
-      const MutableBufferSequence& buffers, Handler& handler)
-  {
-    descriptor_service_.async_read_some(impl, buffers, handler);
-  }
-
-private:
-  // Function pointer type for storing a serial port option.
-  typedef asio::error_code (*store_function_type)(
-      const void*, termios&, asio::error_code&);
-
-  // Helper function template to store a serial port option.
-  template <typename SettableSerialPortOption>
-  static asio::error_code store_option(const void* option,
-      termios& storage, asio::error_code& ec)
-  {
-    static_cast<const SettableSerialPortOption*>(option)->store(storage, ec);
-    return ec;
-  }
-
-  // Helper function to set a serial port option.
-  ASIO_DECL asio::error_code do_set_option(
-      implementation_type& impl, store_function_type store,
-      const void* option, asio::error_code& ec);
-
-  // Function pointer type for loading a serial port option.
-  typedef asio::error_code (*load_function_type)(
-      void*, const termios&, asio::error_code&);
-
-  // Helper function template to load a serial port option.
-  template <typename GettableSerialPortOption>
-  static asio::error_code load_option(void* option,
-      const termios& storage, asio::error_code& ec)
-  {
-    static_cast<GettableSerialPortOption*>(option)->load(storage, ec);
-    return ec;
-  }
-
-  // Helper function to get a serial port option.
-  ASIO_DECL asio::error_code do_get_option(
-      const implementation_type& impl, load_function_type load,
-      void* option, asio::error_code& ec) const;
-
-  // The implementation used for initiating asynchronous operations.
-  reactive_descriptor_service descriptor_service_;
-};
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#if defined(ASIO_HEADER_ONLY)
-# include "asio/detail/impl/reactive_serial_port_service.ipp"
-#endif // defined(ASIO_HEADER_ONLY)
-
-#endif // !defined(ASIO_WINDOWS) && !defined(__CYGWIN__)
-#endif // defined(ASIO_HAS_SERIAL_PORT)
-
-#endif // ASIO_DETAIL_REACTIVE_SERIAL_PORT_SERVICE_HPP
diff --git a/lib/asio/detail/reactive_socket_accept_op.hpp b/lib/asio/detail/reactive_socket_accept_op.hpp
deleted file mode 100644
index 4a98f04..0000000
--- a/lib/asio/detail/reactive_socket_accept_op.hpp
+++ /dev/null
@@ -1,217 +0,0 @@
-//
-// detail/reactive_socket_accept_op.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_REACTIVE_SOCKET_ACCEPT_OP_HPP
-#define ASIO_DETAIL_REACTIVE_SOCKET_ACCEPT_OP_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-#include "asio/detail/bind_handler.hpp"
-#include "asio/detail/buffer_sequence_adapter.hpp"
-#include "asio/detail/fenced_block.hpp"
-#include "asio/detail/memory.hpp"
-#include "asio/detail/reactor_op.hpp"
-#include "asio/detail/socket_holder.hpp"
-#include "asio/detail/socket_ops.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-template <typename Socket, typename Protocol>
-class reactive_socket_accept_op_base : public reactor_op
-{
-public:
-  reactive_socket_accept_op_base(socket_type socket,
-      socket_ops::state_type state, Socket& peer, const Protocol& protocol,
-      typename Protocol::endpoint* peer_endpoint, func_type complete_func)
-    : reactor_op(&reactive_socket_accept_op_base::do_perform, complete_func),
-      socket_(socket),
-      state_(state),
-      peer_(peer),
-      protocol_(protocol),
-      peer_endpoint_(peer_endpoint),
-      addrlen_(peer_endpoint ? peer_endpoint->capacity() : 0)
-  {
-  }
-
-  static status do_perform(reactor_op* base)
-  {
-    reactive_socket_accept_op_base* o(
-        static_cast<reactive_socket_accept_op_base*>(base));
-
-    socket_type new_socket = invalid_socket;
-    status result = socket_ops::non_blocking_accept(o->socket_,
-        o->state_, o->peer_endpoint_ ? o->peer_endpoint_->data() : 0,
-        o->peer_endpoint_ ? &o->addrlen_ : 0, o->ec_, new_socket)
-    ? done : not_done;
-    o->new_socket_.reset(new_socket);
-
-    ASIO_HANDLER_REACTOR_OPERATION((*o, "non_blocking_accept", o->ec_));
-
-    return result;
-  }
-
-  void do_assign()
-  {
-    if (new_socket_.get() != invalid_socket)
-    {
-      if (peer_endpoint_)
-        peer_endpoint_->resize(addrlen_);
-      peer_.assign(protocol_, new_socket_.get(), ec_);
-      if (!ec_)
-        new_socket_.release();
-    }
-  }
-
-private:
-  socket_type socket_;
-  socket_ops::state_type state_;
-  socket_holder new_socket_;
-  Socket& peer_;
-  Protocol protocol_;
-  typename Protocol::endpoint* peer_endpoint_;
-  std::size_t addrlen_;
-};
-
-template <typename Socket, typename Protocol, typename Handler>
-class reactive_socket_accept_op :
-  public reactive_socket_accept_op_base<Socket, Protocol>
-{
-public:
-  ASIO_DEFINE_HANDLER_PTR(reactive_socket_accept_op);
-
-  reactive_socket_accept_op(socket_type socket,
-      socket_ops::state_type state, Socket& peer, const Protocol& protocol,
-      typename Protocol::endpoint* peer_endpoint, Handler& handler)
-    : reactive_socket_accept_op_base<Socket, Protocol>(socket, state, peer,
-        protocol, peer_endpoint, &reactive_socket_accept_op::do_complete),
-      handler_(ASIO_MOVE_CAST(Handler)(handler))
-  {
-    handler_work<Handler>::start(handler_);
-  }
-
-  static void do_complete(void* owner, operation* base,
-      const asio::error_code& /*ec*/,
-      std::size_t /*bytes_transferred*/)
-  {
-    // Take ownership of the handler object.
-    reactive_socket_accept_op* o(static_cast<reactive_socket_accept_op*>(base));
-    ptr p = { asio::detail::addressof(o->handler_), o, o };
-    handler_work<Handler> w(o->handler_);
-
-    // On success, assign new connection to peer socket object.
-    if (owner)
-      o->do_assign();
-
-    ASIO_HANDLER_COMPLETION((*o));
-
-    // Make a copy of the handler so that the memory can be deallocated before
-    // the upcall is made. Even if we're not about to make an upcall, a
-    // sub-object of the handler may be the true owner of the memory associated
-    // with the handler. Consequently, a local copy of the handler is required
-    // to ensure that any owning sub-object remains valid until after we have
-    // deallocated the memory here.
-    detail::binder1<Handler, asio::error_code>
-      handler(o->handler_, o->ec_);
-    p.h = asio::detail::addressof(handler.handler_);
-    p.reset();
-
-    // Make the upcall if required.
-    if (owner)
-    {
-      fenced_block b(fenced_block::half);
-      ASIO_HANDLER_INVOCATION_BEGIN((handler.arg1_));
-      w.complete(handler, handler.handler_);
-      ASIO_HANDLER_INVOCATION_END;
-    }
-  }
-
-private:
-  Handler handler_;
-};
-
-#if defined(ASIO_HAS_MOVE)
-
-template <typename Protocol, typename Handler>
-class reactive_socket_move_accept_op :
-  private Protocol::socket,
-  public reactive_socket_accept_op_base<typename Protocol::socket, Protocol>
-{
-public:
-  ASIO_DEFINE_HANDLER_PTR(reactive_socket_move_accept_op);
-
-  reactive_socket_move_accept_op(io_context& ioc, socket_type socket,
-      socket_ops::state_type state, const Protocol& protocol,
-      typename Protocol::endpoint* peer_endpoint, Handler& handler)
-    : Protocol::socket(ioc),
-      reactive_socket_accept_op_base<typename Protocol::socket, Protocol>(
-        socket, state, *this, protocol, peer_endpoint,
-        &reactive_socket_move_accept_op::do_complete),
-      handler_(ASIO_MOVE_CAST(Handler)(handler))
-  {
-    handler_work<Handler>::start(handler_);
-  }
-
-  static void do_complete(void* owner, operation* base,
-      const asio::error_code& /*ec*/,
-      std::size_t /*bytes_transferred*/)
-  {
-    // Take ownership of the handler object.
-    reactive_socket_move_accept_op* o(
-        static_cast<reactive_socket_move_accept_op*>(base));
-    ptr p = { asio::detail::addressof(o->handler_), o, o };
-    handler_work<Handler> w(o->handler_);
-
-    // On success, assign new connection to peer socket object.
-    if (owner)
-      o->do_assign();
-
-    ASIO_HANDLER_COMPLETION((*o));
-
-    // Make a copy of the handler so that the memory can be deallocated before
-    // the upcall is made. Even if we're not about to make an upcall, a
-    // sub-object of the handler may be the true owner of the memory associated
-    // with the handler. Consequently, a local copy of the handler is required
-    // to ensure that any owning sub-object remains valid until after we have
-    // deallocated the memory here.
-    detail::move_binder2<Handler,
-      asio::error_code, typename Protocol::socket>
-        handler(0, ASIO_MOVE_CAST(Handler)(o->handler_), o->ec_,
-          ASIO_MOVE_CAST(typename Protocol::socket)(*o));
-    p.h = asio::detail::addressof(handler.handler_);
-    p.reset();
-
-    // Make the upcall if required.
-    if (owner)
-    {
-      fenced_block b(fenced_block::half);
-      ASIO_HANDLER_INVOCATION_BEGIN((handler.arg1_, "..."));
-      w.complete(handler, handler.handler_);
-      ASIO_HANDLER_INVOCATION_END;
-    }
-  }
-
-private:
-  Handler handler_;
-};
-
-#endif // defined(ASIO_HAS_MOVE)
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // ASIO_DETAIL_REACTIVE_SOCKET_ACCEPT_OP_HPP
diff --git a/lib/asio/detail/reactive_socket_connect_op.hpp b/lib/asio/detail/reactive_socket_connect_op.hpp
deleted file mode 100644
index 76164b2..0000000
--- a/lib/asio/detail/reactive_socket_connect_op.hpp
+++ /dev/null
@@ -1,113 +0,0 @@
-//
-// detail/reactive_socket_connect_op.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_REACTIVE_SOCKET_CONNECT_OP_HPP
-#define ASIO_DETAIL_REACTIVE_SOCKET_CONNECT_OP_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-#include "asio/detail/bind_handler.hpp"
-#include "asio/detail/buffer_sequence_adapter.hpp"
-#include "asio/detail/fenced_block.hpp"
-#include "asio/detail/memory.hpp"
-#include "asio/detail/reactor_op.hpp"
-#include "asio/detail/socket_ops.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-class reactive_socket_connect_op_base : public reactor_op
-{
-public:
-  reactive_socket_connect_op_base(socket_type socket, func_type complete_func)
-    : reactor_op(&reactive_socket_connect_op_base::do_perform, complete_func),
-      socket_(socket)
-  {
-  }
-
-  static status do_perform(reactor_op* base)
-  {
-    reactive_socket_connect_op_base* o(
-        static_cast<reactive_socket_connect_op_base*>(base));
-
-    status result = socket_ops::non_blocking_connect(
-        o->socket_, o->ec_) ? done : not_done;
-
-    ASIO_HANDLER_REACTOR_OPERATION((*o, "non_blocking_connect", o->ec_));
-
-    return result;
-  }
-
-private:
-  socket_type socket_;
-};
-
-template <typename Handler>
-class reactive_socket_connect_op : public reactive_socket_connect_op_base
-{
-public:
-  ASIO_DEFINE_HANDLER_PTR(reactive_socket_connect_op);
-
-  reactive_socket_connect_op(socket_type socket, Handler& handler)
-    : reactive_socket_connect_op_base(socket,
-        &reactive_socket_connect_op::do_complete),
-      handler_(ASIO_MOVE_CAST(Handler)(handler))
-  {
-    handler_work<Handler>::start(handler_);
-  }
-
-  static void do_complete(void* owner, operation* base,
-      const asio::error_code& /*ec*/,
-      std::size_t /*bytes_transferred*/)
-  {
-    // Take ownership of the handler object.
-    reactive_socket_connect_op* o
-      (static_cast<reactive_socket_connect_op*>(base));
-    ptr p = { asio::detail::addressof(o->handler_), o, o };
-    handler_work<Handler> w(o->handler_);
-
-    ASIO_HANDLER_COMPLETION((*o));
-
-    // Make a copy of the handler so that the memory can be deallocated before
-    // the upcall is made. Even if we're not about to make an upcall, a
-    // sub-object of the handler may be the true owner of the memory associated
-    // with the handler. Consequently, a local copy of the handler is required
-    // to ensure that any owning sub-object remains valid until after we have
-    // deallocated the memory here.
-    detail::binder1<Handler, asio::error_code>
-      handler(o->handler_, o->ec_);
-    p.h = asio::detail::addressof(handler.handler_);
-    p.reset();
-
-    // Make the upcall if required.
-    if (owner)
-    {
-      fenced_block b(fenced_block::half);
-      ASIO_HANDLER_INVOCATION_BEGIN((handler.arg1_));
-      w.complete(handler, handler.handler_);
-      ASIO_HANDLER_INVOCATION_END;
-    }
-  }
-
-private:
-  Handler handler_;
-};
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // ASIO_DETAIL_REACTIVE_SOCKET_CONNECT_OP_HPP
diff --git a/lib/asio/detail/reactive_socket_recv_op.hpp b/lib/asio/detail/reactive_socket_recv_op.hpp
deleted file mode 100644
index 04bd266..0000000
--- a/lib/asio/detail/reactive_socket_recv_op.hpp
+++ /dev/null
@@ -1,135 +0,0 @@
-//
-// detail/reactive_socket_recv_op.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_REACTIVE_SOCKET_RECV_OP_HPP
-#define ASIO_DETAIL_REACTIVE_SOCKET_RECV_OP_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-#include "asio/detail/bind_handler.hpp"
-#include "asio/detail/buffer_sequence_adapter.hpp"
-#include "asio/detail/fenced_block.hpp"
-#include "asio/detail/memory.hpp"
-#include "asio/detail/reactor_op.hpp"
-#include "asio/detail/socket_ops.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-template <typename MutableBufferSequence>
-class reactive_socket_recv_op_base : public reactor_op
-{
-public:
-  reactive_socket_recv_op_base(socket_type socket,
-      socket_ops::state_type state, const MutableBufferSequence& buffers,
-      socket_base::message_flags flags, func_type complete_func)
-    : reactor_op(&reactive_socket_recv_op_base::do_perform, complete_func),
-      socket_(socket),
-      state_(state),
-      buffers_(buffers),
-      flags_(flags)
-  {
-  }
-
-  static status do_perform(reactor_op* base)
-  {
-    reactive_socket_recv_op_base* o(
-        static_cast<reactive_socket_recv_op_base*>(base));
-
-    buffer_sequence_adapter<asio::mutable_buffer,
-        MutableBufferSequence> bufs(o->buffers_);
-
-    status result = socket_ops::non_blocking_recv(o->socket_,
-        bufs.buffers(), bufs.count(), o->flags_,
-        (o->state_ & socket_ops::stream_oriented) != 0,
-        o->ec_, o->bytes_transferred_) ? done : not_done;
-
-    if (result == done)
-      if ((o->state_ & socket_ops::stream_oriented) != 0)
-        if (o->bytes_transferred_ == 0)
-          result = done_and_exhausted;
-
-    ASIO_HANDLER_REACTOR_OPERATION((*o, "non_blocking_recv",
-          o->ec_, o->bytes_transferred_));
-
-    return result;
-  }
-
-private:
-  socket_type socket_;
-  socket_ops::state_type state_;
-  MutableBufferSequence buffers_;
-  socket_base::message_flags flags_;
-};
-
-template <typename MutableBufferSequence, typename Handler>
-class reactive_socket_recv_op :
-  public reactive_socket_recv_op_base<MutableBufferSequence>
-{
-public:
-  ASIO_DEFINE_HANDLER_PTR(reactive_socket_recv_op);
-
-  reactive_socket_recv_op(socket_type socket,
-      socket_ops::state_type state, const MutableBufferSequence& buffers,
-      socket_base::message_flags flags, Handler& handler)
-    : reactive_socket_recv_op_base<MutableBufferSequence>(socket, state,
-        buffers, flags, &reactive_socket_recv_op::do_complete),
-      handler_(ASIO_MOVE_CAST(Handler)(handler))
-  {
-    handler_work<Handler>::start(handler_);
-  }
-
-  static void do_complete(void* owner, operation* base,
-      const asio::error_code& /*ec*/,
-      std::size_t /*bytes_transferred*/)
-  {
-    // Take ownership of the handler object.
-    reactive_socket_recv_op* o(static_cast<reactive_socket_recv_op*>(base));
-    ptr p = { asio::detail::addressof(o->handler_), o, o };
-    handler_work<Handler> w(o->handler_);
-
-    ASIO_HANDLER_COMPLETION((*o));
-
-    // Make a copy of the handler so that the memory can be deallocated before
-    // the upcall is made. Even if we're not about to make an upcall, a
-    // sub-object of the handler may be the true owner of the memory associated
-    // with the handler. Consequently, a local copy of the handler is required
-    // to ensure that any owning sub-object remains valid until after we have
-    // deallocated the memory here.
-    detail::binder2<Handler, asio::error_code, std::size_t>
-      handler(o->handler_, o->ec_, o->bytes_transferred_);
-    p.h = asio::detail::addressof(handler.handler_);
-    p.reset();
-
-    // Make the upcall if required.
-    if (owner)
-    {
-      fenced_block b(fenced_block::half);
-      ASIO_HANDLER_INVOCATION_BEGIN((handler.arg1_, handler.arg2_));
-      w.complete(handler, handler.handler_);
-      ASIO_HANDLER_INVOCATION_END;
-    }
-  }
-
-private:
-  Handler handler_;
-};
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // ASIO_DETAIL_REACTIVE_SOCKET_RECV_OP_HPP
diff --git a/lib/asio/detail/reactive_socket_recvfrom_op.hpp b/lib/asio/detail/reactive_socket_recvfrom_op.hpp
deleted file mode 100644
index 3d4fa4c..0000000
--- a/lib/asio/detail/reactive_socket_recvfrom_op.hpp
+++ /dev/null
@@ -1,138 +0,0 @@
-//
-// detail/reactive_socket_recvfrom_op.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_REACTIVE_SOCKET_RECVFROM_OP_HPP
-#define ASIO_DETAIL_REACTIVE_SOCKET_RECVFROM_OP_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-#include "asio/detail/bind_handler.hpp"
-#include "asio/detail/buffer_sequence_adapter.hpp"
-#include "asio/detail/fenced_block.hpp"
-#include "asio/detail/memory.hpp"
-#include "asio/detail/reactor_op.hpp"
-#include "asio/detail/socket_ops.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-template <typename MutableBufferSequence, typename Endpoint>
-class reactive_socket_recvfrom_op_base : public reactor_op
-{
-public:
-  reactive_socket_recvfrom_op_base(socket_type socket, int protocol_type,
-      const MutableBufferSequence& buffers, Endpoint& endpoint,
-      socket_base::message_flags flags, func_type complete_func)
-    : reactor_op(&reactive_socket_recvfrom_op_base::do_perform, complete_func),
-      socket_(socket),
-      protocol_type_(protocol_type),
-      buffers_(buffers),
-      sender_endpoint_(endpoint),
-      flags_(flags)
-  {
-  }
-
-  static status do_perform(reactor_op* base)
-  {
-    reactive_socket_recvfrom_op_base* o(
-        static_cast<reactive_socket_recvfrom_op_base*>(base));
-
-    buffer_sequence_adapter<asio::mutable_buffer,
-        MutableBufferSequence> bufs(o->buffers_);
-
-    std::size_t addr_len = o->sender_endpoint_.capacity();
-    status result = socket_ops::non_blocking_recvfrom(o->socket_,
-        bufs.buffers(), bufs.count(), o->flags_,
-        o->sender_endpoint_.data(), &addr_len,
-        o->ec_, o->bytes_transferred_) ? done : not_done;
-
-    if (result && !o->ec_)
-      o->sender_endpoint_.resize(addr_len);
-
-    ASIO_HANDLER_REACTOR_OPERATION((*o, "non_blocking_recvfrom",
-          o->ec_, o->bytes_transferred_));
-
-    return result;
-  }
-
-private:
-  socket_type socket_;
-  int protocol_type_;
-  MutableBufferSequence buffers_;
-  Endpoint& sender_endpoint_;
-  socket_base::message_flags flags_;
-};
-
-template <typename MutableBufferSequence, typename Endpoint, typename Handler>
-class reactive_socket_recvfrom_op :
-  public reactive_socket_recvfrom_op_base<MutableBufferSequence, Endpoint>
-{
-public:
-  ASIO_DEFINE_HANDLER_PTR(reactive_socket_recvfrom_op);
-
-  reactive_socket_recvfrom_op(socket_type socket, int protocol_type,
-      const MutableBufferSequence& buffers, Endpoint& endpoint,
-      socket_base::message_flags flags, Handler& handler)
-    : reactive_socket_recvfrom_op_base<MutableBufferSequence, Endpoint>(
-        socket, protocol_type, buffers, endpoint, flags,
-        &reactive_socket_recvfrom_op::do_complete),
-      handler_(ASIO_MOVE_CAST(Handler)(handler))
-  {
-    handler_work<Handler>::start(handler_);
-  }
-
-  static void do_complete(void* owner, operation* base,
-      const asio::error_code& /*ec*/,
-      std::size_t /*bytes_transferred*/)
-  {
-    // Take ownership of the handler object.
-    reactive_socket_recvfrom_op* o(
-        static_cast<reactive_socket_recvfrom_op*>(base));
-    ptr p = { asio::detail::addressof(o->handler_), o, o };
-    handler_work<Handler> w(o->handler_);
-
-    ASIO_HANDLER_COMPLETION((*o));
-
-    // Make a copy of the handler so that the memory can be deallocated before
-    // the upcall is made. Even if we're not about to make an upcall, a
-    // sub-object of the handler may be the true owner of the memory associated
-    // with the handler. Consequently, a local copy of the handler is required
-    // to ensure that any owning sub-object remains valid until after we have
-    // deallocated the memory here.
-    detail::binder2<Handler, asio::error_code, std::size_t>
-      handler(o->handler_, o->ec_, o->bytes_transferred_);
-    p.h = asio::detail::addressof(handler.handler_);
-    p.reset();
-
-    // Make the upcall if required.
-    if (owner)
-    {
-      fenced_block b(fenced_block::half);
-      ASIO_HANDLER_INVOCATION_BEGIN((handler.arg1_, handler.arg2_));
-      w.complete(handler, handler.handler_);
-      ASIO_HANDLER_INVOCATION_END;
-    }
-  }
-
-private:
-  Handler handler_;
-};
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // ASIO_DETAIL_REACTIVE_SOCKET_RECVFROM_OP_HPP
diff --git a/lib/asio/detail/reactive_socket_recvmsg_op.hpp b/lib/asio/detail/reactive_socket_recvmsg_op.hpp
deleted file mode 100644
index f473274..0000000
--- a/lib/asio/detail/reactive_socket_recvmsg_op.hpp
+++ /dev/null
@@ -1,132 +0,0 @@
-//
-// detail/reactive_socket_recvmsg_op.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_REACTIVE_SOCKET_RECVMSG_OP_HPP
-#define ASIO_DETAIL_REACTIVE_SOCKET_RECVMSG_OP_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-#include "asio/detail/bind_handler.hpp"
-#include "asio/detail/buffer_sequence_adapter.hpp"
-#include "asio/detail/fenced_block.hpp"
-#include "asio/detail/memory.hpp"
-#include "asio/detail/reactor_op.hpp"
-#include "asio/detail/socket_ops.hpp"
-#include "asio/socket_base.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-template <typename MutableBufferSequence>
-class reactive_socket_recvmsg_op_base : public reactor_op
-{
-public:
-  reactive_socket_recvmsg_op_base(socket_type socket,
-      const MutableBufferSequence& buffers, socket_base::message_flags in_flags,
-      socket_base::message_flags& out_flags, func_type complete_func)
-    : reactor_op(&reactive_socket_recvmsg_op_base::do_perform, complete_func),
-      socket_(socket),
-      buffers_(buffers),
-      in_flags_(in_flags),
-      out_flags_(out_flags)
-  {
-  }
-
-  static status do_perform(reactor_op* base)
-  {
-    reactive_socket_recvmsg_op_base* o(
-        static_cast<reactive_socket_recvmsg_op_base*>(base));
-
-    buffer_sequence_adapter<asio::mutable_buffer,
-        MutableBufferSequence> bufs(o->buffers_);
-
-    status result = socket_ops::non_blocking_recvmsg(o->socket_,
-        bufs.buffers(), bufs.count(),
-        o->in_flags_, o->out_flags_,
-        o->ec_, o->bytes_transferred_) ? done : not_done;
-
-    ASIO_HANDLER_REACTOR_OPERATION((*o, "non_blocking_recvmsg",
-          o->ec_, o->bytes_transferred_));
-
-    return result;
-  }
-
-private:
-  socket_type socket_;
-  MutableBufferSequence buffers_;
-  socket_base::message_flags in_flags_;
-  socket_base::message_flags& out_flags_;
-};
-
-template <typename MutableBufferSequence, typename Handler>
-class reactive_socket_recvmsg_op :
-  public reactive_socket_recvmsg_op_base<MutableBufferSequence>
-{
-public:
-  ASIO_DEFINE_HANDLER_PTR(reactive_socket_recvmsg_op);
-
-  reactive_socket_recvmsg_op(socket_type socket,
-      const MutableBufferSequence& buffers, socket_base::message_flags in_flags,
-      socket_base::message_flags& out_flags, Handler& handler)
-    : reactive_socket_recvmsg_op_base<MutableBufferSequence>(socket, buffers,
-        in_flags, out_flags, &reactive_socket_recvmsg_op::do_complete),
-      handler_(ASIO_MOVE_CAST(Handler)(handler))
-  {
-    handler_work<Handler>::start(handler_);
-  }
-
-  static void do_complete(void* owner, operation* base,
-      const asio::error_code& /*ec*/,
-      std::size_t /*bytes_transferred*/)
-  {
-    // Take ownership of the handler object.
-    reactive_socket_recvmsg_op* o(
-        static_cast<reactive_socket_recvmsg_op*>(base));
-    ptr p = { asio::detail::addressof(o->handler_), o, o };
-    handler_work<Handler> w(o->handler_);
-
-    ASIO_HANDLER_COMPLETION((*o));
-
-    // Make a copy of the handler so that the memory can be deallocated before
-    // the upcall is made. Even if we're not about to make an upcall, a
-    // sub-object of the handler may be the true owner of the memory associated
-    // with the handler. Consequently, a local copy of the handler is required
-    // to ensure that any owning sub-object remains valid until after we have
-    // deallocated the memory here.
-    detail::binder2<Handler, asio::error_code, std::size_t>
-      handler(o->handler_, o->ec_, o->bytes_transferred_);
-    p.h = asio::detail::addressof(handler.handler_);
-    p.reset();
-
-    // Make the upcall if required.
-    if (owner)
-    {
-      fenced_block b(fenced_block::half);
-      ASIO_HANDLER_INVOCATION_BEGIN((handler.arg1_, handler.arg2_));
-      w.complete(handler, handler.handler_);
-      ASIO_HANDLER_INVOCATION_END;
-    }
-  }
-
-private:
-  Handler handler_;
-};
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // ASIO_DETAIL_REACTIVE_SOCKET_RECVMSG_OP_HPP
diff --git a/lib/asio/detail/reactive_socket_send_op.hpp b/lib/asio/detail/reactive_socket_send_op.hpp
deleted file mode 100644
index bd550d9..0000000
--- a/lib/asio/detail/reactive_socket_send_op.hpp
+++ /dev/null
@@ -1,134 +0,0 @@
-//
-// detail/reactive_socket_send_op.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_REACTIVE_SOCKET_SEND_OP_HPP
-#define ASIO_DETAIL_REACTIVE_SOCKET_SEND_OP_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-#include "asio/detail/bind_handler.hpp"
-#include "asio/detail/buffer_sequence_adapter.hpp"
-#include "asio/detail/fenced_block.hpp"
-#include "asio/detail/memory.hpp"
-#include "asio/detail/reactor_op.hpp"
-#include "asio/detail/socket_ops.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-template <typename ConstBufferSequence>
-class reactive_socket_send_op_base : public reactor_op
-{
-public:
-  reactive_socket_send_op_base(socket_type socket,
-      socket_ops::state_type state, const ConstBufferSequence& buffers,
-      socket_base::message_flags flags, func_type complete_func)
-    : reactor_op(&reactive_socket_send_op_base::do_perform, complete_func),
-      socket_(socket),
-      state_(state),
-      buffers_(buffers),
-      flags_(flags)
-  {
-  }
-
-  static status do_perform(reactor_op* base)
-  {
-    reactive_socket_send_op_base* o(
-        static_cast<reactive_socket_send_op_base*>(base));
-
-    buffer_sequence_adapter<asio::const_buffer,
-        ConstBufferSequence> bufs(o->buffers_);
-
-    status result = socket_ops::non_blocking_send(o->socket_,
-          bufs.buffers(), bufs.count(), o->flags_,
-          o->ec_, o->bytes_transferred_) ? done : not_done;
-
-    if (result == done)
-      if ((o->state_ & socket_ops::stream_oriented) != 0)
-        if (o->bytes_transferred_ < bufs.total_size())
-          result = done_and_exhausted;
-
-    ASIO_HANDLER_REACTOR_OPERATION((*o, "non_blocking_send",
-          o->ec_, o->bytes_transferred_));
-
-    return result;
-  }
-
-private:
-  socket_type socket_;
-  socket_ops::state_type state_;
-  ConstBufferSequence buffers_;
-  socket_base::message_flags flags_;
-};
-
-template <typename ConstBufferSequence, typename Handler>
-class reactive_socket_send_op :
-  public reactive_socket_send_op_base<ConstBufferSequence>
-{
-public:
-  ASIO_DEFINE_HANDLER_PTR(reactive_socket_send_op);
-
-  reactive_socket_send_op(socket_type socket,
-      socket_ops::state_type state, const ConstBufferSequence& buffers,
-      socket_base::message_flags flags, Handler& handler)
-    : reactive_socket_send_op_base<ConstBufferSequence>(socket,
-        state, buffers, flags, &reactive_socket_send_op::do_complete),
-      handler_(ASIO_MOVE_CAST(Handler)(handler))
-  {
-    handler_work<Handler>::start(handler_);
-  }
-
-  static void do_complete(void* owner, operation* base,
-      const asio::error_code& /*ec*/,
-      std::size_t /*bytes_transferred*/)
-  {
-    // Take ownership of the handler object.
-    reactive_socket_send_op* o(static_cast<reactive_socket_send_op*>(base));
-    ptr p = { asio::detail::addressof(o->handler_), o, o };
-    handler_work<Handler> w(o->handler_);
-
-    ASIO_HANDLER_COMPLETION((*o));
-
-    // Make a copy of the handler so that the memory can be deallocated before
-    // the upcall is made. Even if we're not about to make an upcall, a
-    // sub-object of the handler may be the true owner of the memory associated
-    // with the handler. Consequently, a local copy of the handler is required
-    // to ensure that any owning sub-object remains valid until after we have
-    // deallocated the memory here.
-    detail::binder2<Handler, asio::error_code, std::size_t>
-      handler(o->handler_, o->ec_, o->bytes_transferred_);
-    p.h = asio::detail::addressof(handler.handler_);
-    p.reset();
-
-    // Make the upcall if required.
-    if (owner)
-    {
-      fenced_block b(fenced_block::half);
-      ASIO_HANDLER_INVOCATION_BEGIN((handler.arg1_, handler.arg2_));
-      w.complete(handler, handler.handler_);
-      ASIO_HANDLER_INVOCATION_END;
-    }
-  }
-
-private:
-  Handler handler_;
-};
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // ASIO_DETAIL_REACTIVE_SOCKET_SEND_OP_HPP
diff --git a/lib/asio/detail/reactive_socket_sendto_op.hpp b/lib/asio/detail/reactive_socket_sendto_op.hpp
deleted file mode 100644
index c97554d..0000000
--- a/lib/asio/detail/reactive_socket_sendto_op.hpp
+++ /dev/null
@@ -1,130 +0,0 @@
-//
-// detail/reactive_socket_sendto_op.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_REACTIVE_SOCKET_SENDTO_OP_HPP
-#define ASIO_DETAIL_REACTIVE_SOCKET_SENDTO_OP_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-#include "asio/detail/bind_handler.hpp"
-#include "asio/detail/buffer_sequence_adapter.hpp"
-#include "asio/detail/fenced_block.hpp"
-#include "asio/detail/memory.hpp"
-#include "asio/detail/reactor_op.hpp"
-#include "asio/detail/socket_ops.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-template <typename ConstBufferSequence, typename Endpoint>
-class reactive_socket_sendto_op_base : public reactor_op
-{
-public:
-  reactive_socket_sendto_op_base(socket_type socket,
-      const ConstBufferSequence& buffers, const Endpoint& endpoint,
-      socket_base::message_flags flags, func_type complete_func)
-    : reactor_op(&reactive_socket_sendto_op_base::do_perform, complete_func),
-      socket_(socket),
-      buffers_(buffers),
-      destination_(endpoint),
-      flags_(flags)
-  {
-  }
-
-  static status do_perform(reactor_op* base)
-  {
-    reactive_socket_sendto_op_base* o(
-        static_cast<reactive_socket_sendto_op_base*>(base));
-
-    buffer_sequence_adapter<asio::const_buffer,
-        ConstBufferSequence> bufs(o->buffers_);
-
-    status result = socket_ops::non_blocking_sendto(o->socket_,
-          bufs.buffers(), bufs.count(), o->flags_,
-          o->destination_.data(), o->destination_.size(),
-          o->ec_, o->bytes_transferred_) ? done : not_done;
-
-    ASIO_HANDLER_REACTOR_OPERATION((*o, "non_blocking_sendto",
-          o->ec_, o->bytes_transferred_));
-
-    return result;
-  }
-
-private:
-  socket_type socket_;
-  ConstBufferSequence buffers_;
-  Endpoint destination_;
-  socket_base::message_flags flags_;
-};
-
-template <typename ConstBufferSequence, typename Endpoint, typename Handler>
-class reactive_socket_sendto_op :
-  public reactive_socket_sendto_op_base<ConstBufferSequence, Endpoint>
-{
-public:
-  ASIO_DEFINE_HANDLER_PTR(reactive_socket_sendto_op);
-
-  reactive_socket_sendto_op(socket_type socket,
-      const ConstBufferSequence& buffers, const Endpoint& endpoint,
-      socket_base::message_flags flags, Handler& handler)
-    : reactive_socket_sendto_op_base<ConstBufferSequence, Endpoint>(socket,
-        buffers, endpoint, flags, &reactive_socket_sendto_op::do_complete),
-      handler_(ASIO_MOVE_CAST(Handler)(handler))
-  {
-    handler_work<Handler>::start(handler_);
-  }
-
-  static void do_complete(void* owner, operation* base,
-      const asio::error_code& /*ec*/,
-      std::size_t /*bytes_transferred*/)
-  {
-    // Take ownership of the handler object.
-    reactive_socket_sendto_op* o(static_cast<reactive_socket_sendto_op*>(base));
-    ptr p = { asio::detail::addressof(o->handler_), o, o };
-    handler_work<Handler> w(o->handler_);
-
-    ASIO_HANDLER_COMPLETION((*o));
-
-    // Make a copy of the handler so that the memory can be deallocated before
-    // the upcall is made. Even if we're not about to make an upcall, a
-    // sub-object of the handler may be the true owner of the memory associated
-    // with the handler. Consequently, a local copy of the handler is required
-    // to ensure that any owning sub-object remains valid until after we have
-    // deallocated the memory here.
-    detail::binder2<Handler, asio::error_code, std::size_t>
-      handler(o->handler_, o->ec_, o->bytes_transferred_);
-    p.h = asio::detail::addressof(handler.handler_);
-    p.reset();
-
-    // Make the upcall if required.
-    if (owner)
-    {
-      fenced_block b(fenced_block::half);
-      ASIO_HANDLER_INVOCATION_BEGIN((handler.arg1_, handler.arg2_));
-      w.complete(handler, handler.handler_);
-      ASIO_HANDLER_INVOCATION_END;
-    }
-  }
-
-private:
-  Handler handler_;
-};
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // ASIO_DETAIL_REACTIVE_SOCKET_SENDTO_OP_HPP
diff --git a/lib/asio/detail/reactive_socket_service.hpp b/lib/asio/detail/reactive_socket_service.hpp
deleted file mode 100644
index 15a4fdb..0000000
--- a/lib/asio/detail/reactive_socket_service.hpp
+++ /dev/null
@@ -1,526 +0,0 @@
-//
-// detail/reactive_socket_service.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_REACTIVE_SOCKET_SERVICE_HPP
-#define ASIO_DETAIL_REACTIVE_SOCKET_SERVICE_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-
-#if !defined(ASIO_HAS_IOCP)
-
-#include "asio/buffer.hpp"
-#include "asio/error.hpp"
-#include "asio/io_context.hpp"
-#include "asio/socket_base.hpp"
-#include "asio/detail/buffer_sequence_adapter.hpp"
-#include "asio/detail/memory.hpp"
-#include "asio/detail/noncopyable.hpp"
-#include "asio/detail/reactive_null_buffers_op.hpp"
-#include "asio/detail/reactive_socket_accept_op.hpp"
-#include "asio/detail/reactive_socket_connect_op.hpp"
-#include "asio/detail/reactive_socket_recvfrom_op.hpp"
-#include "asio/detail/reactive_socket_sendto_op.hpp"
-#include "asio/detail/reactive_socket_service_base.hpp"
-#include "asio/detail/reactor.hpp"
-#include "asio/detail/reactor_op.hpp"
-#include "asio/detail/socket_holder.hpp"
-#include "asio/detail/socket_ops.hpp"
-#include "asio/detail/socket_types.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-template <typename Protocol>
-class reactive_socket_service :
-  public service_base<reactive_socket_service<Protocol> >,
-  public reactive_socket_service_base
-{
-public:
-  // The protocol type.
-  typedef Protocol protocol_type;
-
-  // The endpoint type.
-  typedef typename Protocol::endpoint endpoint_type;
-
-  // The native type of a socket.
-  typedef socket_type native_handle_type;
-
-  // The implementation type of the socket.
-  struct implementation_type :
-    reactive_socket_service_base::base_implementation_type
-  {
-    // Default constructor.
-    implementation_type()
-      : protocol_(endpoint_type().protocol())
-    {
-    }
-
-    // The protocol associated with the socket.
-    protocol_type protocol_;
-  };
-
-  // Constructor.
-  reactive_socket_service(asio::io_context& io_context)
-    : service_base<reactive_socket_service<Protocol> >(io_context),
-      reactive_socket_service_base(io_context)
-  {
-  }
-
-  // Destroy all user-defined handler objects owned by the service.
-  void shutdown()
-  {
-    this->base_shutdown();
-  }
-
-  // Move-construct a new socket implementation.
-  void move_construct(implementation_type& impl,
-      implementation_type& other_impl)
-  {
-    this->base_move_construct(impl, other_impl);
-
-    impl.protocol_ = other_impl.protocol_;
-    other_impl.protocol_ = endpoint_type().protocol();
-  }
-
-  // Move-assign from another socket implementation.
-  void move_assign(implementation_type& impl,
-      reactive_socket_service_base& other_service,
-      implementation_type& other_impl)
-  {
-    this->base_move_assign(impl, other_service, other_impl);
-
-    impl.protocol_ = other_impl.protocol_;
-    other_impl.protocol_ = endpoint_type().protocol();
-  }
-
-  // Move-construct a new socket implementation from another protocol type.
-  template <typename Protocol1>
-  void converting_move_construct(implementation_type& impl,
-      reactive_socket_service<Protocol1>&,
-      typename reactive_socket_service<
-        Protocol1>::implementation_type& other_impl)
-  {
-    this->base_move_construct(impl, other_impl);
-
-    impl.protocol_ = protocol_type(other_impl.protocol_);
-    other_impl.protocol_ = typename Protocol1::endpoint().protocol();
-  }
-
-  // Open a new socket implementation.
-  asio::error_code open(implementation_type& impl,
-      const protocol_type& protocol, asio::error_code& ec)
-  {
-    if (!do_open(impl, protocol.family(),
-          protocol.type(), protocol.protocol(), ec))
-      impl.protocol_ = protocol;
-    return ec;
-  }
-
-  // Assign a native socket to a socket implementation.
-  asio::error_code assign(implementation_type& impl,
-      const protocol_type& protocol, const native_handle_type& native_socket,
-      asio::error_code& ec)
-  {
-    if (!do_assign(impl, protocol.type(), native_socket, ec))
-      impl.protocol_ = protocol;
-    return ec;
-  }
-
-  // Get the native socket representation.
-  native_handle_type native_handle(implementation_type& impl)
-  {
-    return impl.socket_;
-  }
-
-  // Bind the socket to the specified local endpoint.
-  asio::error_code bind(implementation_type& impl,
-      const endpoint_type& endpoint, asio::error_code& ec)
-  {
-    socket_ops::bind(impl.socket_, endpoint.data(), endpoint.size(), ec);
-    return ec;
-  }
-
-  // Set a socket option.
-  template <typename Option>
-  asio::error_code set_option(implementation_type& impl,
-      const Option& option, asio::error_code& ec)
-  {
-    socket_ops::setsockopt(impl.socket_, impl.state_,
-        option.level(impl.protocol_), option.name(impl.protocol_),
-        option.data(impl.protocol_), option.size(impl.protocol_), ec);
-    return ec;
-  }
-
-  // Set a socket option.
-  template <typename Option>
-  asio::error_code get_option(const implementation_type& impl,
-      Option& option, asio::error_code& ec) const
-  {
-    std::size_t size = option.size(impl.protocol_);
-    socket_ops::getsockopt(impl.socket_, impl.state_,
-        option.level(impl.protocol_), option.name(impl.protocol_),
-        option.data(impl.protocol_), &size, ec);
-    if (!ec)
-      option.resize(impl.protocol_, size);
-    return ec;
-  }
-
-  // Get the local endpoint.
-  endpoint_type local_endpoint(const implementation_type& impl,
-      asio::error_code& ec) const
-  {
-    endpoint_type endpoint;
-    std::size_t addr_len = endpoint.capacity();
-    if (socket_ops::getsockname(impl.socket_, endpoint.data(), &addr_len, ec))
-      return endpoint_type();
-    endpoint.resize(addr_len);
-    return endpoint;
-  }
-
-  // Get the remote endpoint.
-  endpoint_type remote_endpoint(const implementation_type& impl,
-      asio::error_code& ec) const
-  {
-    endpoint_type endpoint;
-    std::size_t addr_len = endpoint.capacity();
-    if (socket_ops::getpeername(impl.socket_,
-          endpoint.data(), &addr_len, false, ec))
-      return endpoint_type();
-    endpoint.resize(addr_len);
-    return endpoint;
-  }
-
-  // Disable sends or receives on the socket.
-  asio::error_code shutdown(base_implementation_type& impl,
-      socket_base::shutdown_type what, asio::error_code& ec)
-  {
-    socket_ops::shutdown(impl.socket_, what, ec);
-    return ec;
-  }
-
-  // Send a datagram to the specified endpoint. Returns the number of bytes
-  // sent.
-  template <typename ConstBufferSequence>
-  size_t send_to(implementation_type& impl, const ConstBufferSequence& buffers,
-      const endpoint_type& destination, socket_base::message_flags flags,
-      asio::error_code& ec)
-  {
-    buffer_sequence_adapter<asio::const_buffer,
-        ConstBufferSequence> bufs(buffers);
-
-    return socket_ops::sync_sendto(impl.socket_, impl.state_,
-        bufs.buffers(), bufs.count(), flags,
-        destination.data(), destination.size(), ec);
-  }
-
-  // Wait until data can be sent without blocking.
-  size_t send_to(implementation_type& impl, const null_buffers&,
-      const endpoint_type&, socket_base::message_flags,
-      asio::error_code& ec)
-  {
-    // Wait for socket to become ready.
-    socket_ops::poll_write(impl.socket_, impl.state_, -1, ec);
-
-    return 0;
-  }
-
-  // Start an asynchronous send. The data being sent must be valid for the
-  // lifetime of the asynchronous operation.
-  template <typename ConstBufferSequence, typename Handler>
-  void async_send_to(implementation_type& impl,
-      const ConstBufferSequence& buffers,
-      const endpoint_type& destination, socket_base::message_flags flags,
-      Handler& handler)
-  {
-    bool is_continuation =
-      asio_handler_cont_helpers::is_continuation(handler);
-
-    // Allocate and construct an operation to wrap the handler.
-    typedef reactive_socket_sendto_op<ConstBufferSequence,
-        endpoint_type, Handler> op;
-    typename op::ptr p = { asio::detail::addressof(handler),
-      op::ptr::allocate(handler), 0 };
-    p.p = new (p.v) op(impl.socket_, buffers, destination, flags, handler);
-
-    ASIO_HANDLER_CREATION((reactor_.context(), *p.p, "socket",
-          &impl, impl.socket_, "async_send_to"));
-
-    start_op(impl, reactor::write_op, p.p, is_continuation, true, false);
-    p.v = p.p = 0;
-  }
-
-  // Start an asynchronous wait until data can be sent without blocking.
-  template <typename Handler>
-  void async_send_to(implementation_type& impl, const null_buffers&,
-      const endpoint_type&, socket_base::message_flags, Handler& handler)
-  {
-    bool is_continuation =
-      asio_handler_cont_helpers::is_continuation(handler);
-
-    // Allocate and construct an operation to wrap the handler.
-    typedef reactive_null_buffers_op<Handler> op;
-    typename op::ptr p = { asio::detail::addressof(handler),
-      op::ptr::allocate(handler), 0 };
-    p.p = new (p.v) op(handler);
-
-    ASIO_HANDLER_CREATION((reactor_.context(), *p.p, "socket",
-          &impl, impl.socket_, "async_send_to(null_buffers)"));
-
-    start_op(impl, reactor::write_op, p.p, is_continuation, false, false);
-    p.v = p.p = 0;
-  }
-
-  // Receive a datagram with the endpoint of the sender. Returns the number of
-  // bytes received.
-  template <typename MutableBufferSequence>
-  size_t receive_from(implementation_type& impl,
-      const MutableBufferSequence& buffers,
-      endpoint_type& sender_endpoint, socket_base::message_flags flags,
-      asio::error_code& ec)
-  {
-    buffer_sequence_adapter<asio::mutable_buffer,
-        MutableBufferSequence> bufs(buffers);
-
-    std::size_t addr_len = sender_endpoint.capacity();
-    std::size_t bytes_recvd = socket_ops::sync_recvfrom(
-        impl.socket_, impl.state_, bufs.buffers(), bufs.count(),
-        flags, sender_endpoint.data(), &addr_len, ec);
-
-    if (!ec)
-      sender_endpoint.resize(addr_len);
-
-    return bytes_recvd;
-  }
-
-  // Wait until data can be received without blocking.
-  size_t receive_from(implementation_type& impl, const null_buffers&,
-      endpoint_type& sender_endpoint, socket_base::message_flags,
-      asio::error_code& ec)
-  {
-    // Wait for socket to become ready.
-    socket_ops::poll_read(impl.socket_, impl.state_, -1, ec);
-
-    // Reset endpoint since it can be given no sensible value at this time.
-    sender_endpoint = endpoint_type();
-
-    return 0;
-  }
-
-  // Start an asynchronous receive. The buffer for the data being received and
-  // the sender_endpoint object must both be valid for the lifetime of the
-  // asynchronous operation.
-  template <typename MutableBufferSequence, typename Handler>
-  void async_receive_from(implementation_type& impl,
-      const MutableBufferSequence& buffers, endpoint_type& sender_endpoint,
-      socket_base::message_flags flags, Handler& handler)
-  {
-    bool is_continuation =
-      asio_handler_cont_helpers::is_continuation(handler);
-
-    // Allocate and construct an operation to wrap the handler.
-    typedef reactive_socket_recvfrom_op<MutableBufferSequence,
-        endpoint_type, Handler> op;
-    typename op::ptr p = { asio::detail::addressof(handler),
-      op::ptr::allocate(handler), 0 };
-    int protocol = impl.protocol_.type();
-    p.p = new (p.v) op(impl.socket_, protocol,
-        buffers, sender_endpoint, flags, handler);
-
-    ASIO_HANDLER_CREATION((reactor_.context(), *p.p, "socket",
-          &impl, impl.socket_, "async_receive_from"));
-
-    start_op(impl,
-        (flags & socket_base::message_out_of_band)
-          ? reactor::except_op : reactor::read_op,
-        p.p, is_continuation, true, false);
-    p.v = p.p = 0;
-  }
-
-  // Wait until data can be received without blocking.
-  template <typename Handler>
-  void async_receive_from(implementation_type& impl,
-      const null_buffers&, endpoint_type& sender_endpoint,
-      socket_base::message_flags flags, Handler& handler)
-  {
-    bool is_continuation =
-      asio_handler_cont_helpers::is_continuation(handler);
-
-    // Allocate and construct an operation to wrap the handler.
-    typedef reactive_null_buffers_op<Handler> op;
-    typename op::ptr p = { asio::detail::addressof(handler),
-      op::ptr::allocate(handler), 0 };
-    p.p = new (p.v) op(handler);
-
-    ASIO_HANDLER_CREATION((reactor_.context(), *p.p, "socket",
-          &impl, impl.socket_, "async_receive_from(null_buffers)"));
-
-    // Reset endpoint since it can be given no sensible value at this time.
-    sender_endpoint = endpoint_type();
-
-    start_op(impl,
-        (flags & socket_base::message_out_of_band)
-          ? reactor::except_op : reactor::read_op,
-        p.p, is_continuation, false, false);
-    p.v = p.p = 0;
-  }
-
-  // Accept a new connection.
-  template <typename Socket>
-  asio::error_code accept(implementation_type& impl,
-      Socket& peer, endpoint_type* peer_endpoint, asio::error_code& ec)
-  {
-    // We cannot accept a socket that is already open.
-    if (peer.is_open())
-    {
-      ec = asio::error::already_open;
-      return ec;
-    }
-
-    std::size_t addr_len = peer_endpoint ? peer_endpoint->capacity() : 0;
-    socket_holder new_socket(socket_ops::sync_accept(impl.socket_,
-          impl.state_, peer_endpoint ? peer_endpoint->data() : 0,
-          peer_endpoint ? &addr_len : 0, ec));
-
-    // On success, assign new connection to peer socket object.
-    if (new_socket.get() != invalid_socket)
-    {
-      if (peer_endpoint)
-        peer_endpoint->resize(addr_len);
-      peer.assign(impl.protocol_, new_socket.get(), ec);
-      if (!ec)
-        new_socket.release();
-    }
-
-    return ec;
-  }
-
-#if defined(ASIO_HAS_MOVE)
-  // Accept a new connection.
-  typename Protocol::socket accept(implementation_type& impl,
-      io_context* peer_io_context, endpoint_type* peer_endpoint,
-      asio::error_code& ec)
-  {
-    typename Protocol::socket peer(
-        peer_io_context ? *peer_io_context : io_context_);
-
-    std::size_t addr_len = peer_endpoint ? peer_endpoint->capacity() : 0;
-    socket_holder new_socket(socket_ops::sync_accept(impl.socket_,
-          impl.state_, peer_endpoint ? peer_endpoint->data() : 0,
-          peer_endpoint ? &addr_len : 0, ec));
-
-    // On success, assign new connection to peer socket object.
-    if (new_socket.get() != invalid_socket)
-    {
-      if (peer_endpoint)
-        peer_endpoint->resize(addr_len);
-      peer.assign(impl.protocol_, new_socket.get(), ec);
-      if (!ec)
-        new_socket.release();
-    }
-
-    return peer;
-  }
-#endif // defined(ASIO_HAS_MOVE)
-
-  // Start an asynchronous accept. The peer and peer_endpoint objects must be
-  // valid until the accept's handler is invoked.
-  template <typename Socket, typename Handler>
-  void async_accept(implementation_type& impl, Socket& peer,
-      endpoint_type* peer_endpoint, Handler& handler)
-  {
-    bool is_continuation =
-      asio_handler_cont_helpers::is_continuation(handler);
-
-    // Allocate and construct an operation to wrap the handler.
-    typedef reactive_socket_accept_op<Socket, Protocol, Handler> op;
-    typename op::ptr p = { asio::detail::addressof(handler),
-      op::ptr::allocate(handler), 0 };
-    p.p = new (p.v) op(impl.socket_, impl.state_, peer,
-        impl.protocol_, peer_endpoint, handler);
-
-    ASIO_HANDLER_CREATION((reactor_.context(), *p.p, "socket",
-          &impl, impl.socket_, "async_accept"));
-
-    start_accept_op(impl, p.p, is_continuation, peer.is_open());
-    p.v = p.p = 0;
-  }
-
-#if defined(ASIO_HAS_MOVE)
-  // Start an asynchronous accept. The peer_endpoint object must be valid until
-  // the accept's handler is invoked.
-  template <typename Handler>
-  void async_accept(implementation_type& impl,
-      asio::io_context* peer_io_context,
-      endpoint_type* peer_endpoint, Handler& handler)
-  {
-    bool is_continuation =
-      asio_handler_cont_helpers::is_continuation(handler);
-
-    // Allocate and construct an operation to wrap the handler.
-    typedef reactive_socket_move_accept_op<Protocol, Handler> op;
-    typename op::ptr p = { asio::detail::addressof(handler),
-      op::ptr::allocate(handler), 0 };
-    p.p = new (p.v) op(peer_io_context ? *peer_io_context : io_context_,
-        impl.socket_, impl.state_, impl.protocol_, peer_endpoint, handler);
-
-    ASIO_HANDLER_CREATION((reactor_.context(), *p.p, "socket",
-          &impl, impl.socket_, "async_accept"));
-
-    start_accept_op(impl, p.p, is_continuation, false);
-    p.v = p.p = 0;
-  }
-#endif // defined(ASIO_HAS_MOVE)
-
-  // Connect the socket to the specified endpoint.
-  asio::error_code connect(implementation_type& impl,
-      const endpoint_type& peer_endpoint, asio::error_code& ec)
-  {
-    socket_ops::sync_connect(impl.socket_,
-        peer_endpoint.data(), peer_endpoint.size(), ec);
-    return ec;
-  }
-
-  // Start an asynchronous connect.
-  template <typename Handler>
-  void async_connect(implementation_type& impl,
-      const endpoint_type& peer_endpoint, Handler& handler)
-  {
-    bool is_continuation =
-      asio_handler_cont_helpers::is_continuation(handler);
-
-    // Allocate and construct an operation to wrap the handler.
-    typedef reactive_socket_connect_op<Handler> op;
-    typename op::ptr p = { asio::detail::addressof(handler),
-      op::ptr::allocate(handler), 0 };
-    p.p = new (p.v) op(impl.socket_, handler);
-
-    ASIO_HANDLER_CREATION((reactor_.context(), *p.p, "socket",
-          &impl, impl.socket_, "async_connect"));
-
-    start_connect_op(impl, p.p, is_continuation,
-        peer_endpoint.data(), peer_endpoint.size());
-    p.v = p.p = 0;
-  }
-};
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // !defined(ASIO_HAS_IOCP)
-
-#endif // ASIO_DETAIL_REACTIVE_SOCKET_SERVICE_HPP
diff --git a/lib/asio/detail/reactive_socket_service_base.hpp b/lib/asio/detail/reactive_socket_service_base.hpp
deleted file mode 100644
index ccd497e..0000000
--- a/lib/asio/detail/reactive_socket_service_base.hpp
+++ /dev/null
@@ -1,511 +0,0 @@
-//
-// detail/reactive_socket_service_base.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_REACTIVE_SOCKET_SERVICE_BASE_HPP
-#define ASIO_DETAIL_REACTIVE_SOCKET_SERVICE_BASE_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-
-#if !defined(ASIO_HAS_IOCP) \
-  && !defined(ASIO_WINDOWS_RUNTIME)
-
-#include "asio/buffer.hpp"
-#include "asio/error.hpp"
-#include "asio/io_context.hpp"
-#include "asio/socket_base.hpp"
-#include "asio/detail/buffer_sequence_adapter.hpp"
-#include "asio/detail/memory.hpp"
-#include "asio/detail/reactive_null_buffers_op.hpp"
-#include "asio/detail/reactive_socket_recv_op.hpp"
-#include "asio/detail/reactive_socket_recvmsg_op.hpp"
-#include "asio/detail/reactive_socket_send_op.hpp"
-#include "asio/detail/reactive_wait_op.hpp"
-#include "asio/detail/reactor.hpp"
-#include "asio/detail/reactor_op.hpp"
-#include "asio/detail/socket_holder.hpp"
-#include "asio/detail/socket_ops.hpp"
-#include "asio/detail/socket_types.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-class reactive_socket_service_base
-{
-public:
-  // The native type of a socket.
-  typedef socket_type native_handle_type;
-
-  // The implementation type of the socket.
-  struct base_implementation_type
-  {
-    // The native socket representation.
-    socket_type socket_;
-
-    // The current state of the socket.
-    socket_ops::state_type state_;
-
-    // Per-descriptor data used by the reactor.
-    reactor::per_descriptor_data reactor_data_;
-  };
-
-  // Constructor.
-  ASIO_DECL reactive_socket_service_base(
-      asio::io_context& io_context);
-
-  // Destroy all user-defined handler objects owned by the service.
-  ASIO_DECL void base_shutdown();
-
-  // Construct a new socket implementation.
-  ASIO_DECL void construct(base_implementation_type& impl);
-
-  // Move-construct a new socket implementation.
-  ASIO_DECL void base_move_construct(base_implementation_type& impl,
-      base_implementation_type& other_impl);
-
-  // Move-assign from another socket implementation.
-  ASIO_DECL void base_move_assign(base_implementation_type& impl,
-      reactive_socket_service_base& other_service,
-      base_implementation_type& other_impl);
-
-  // Destroy a socket implementation.
-  ASIO_DECL void destroy(base_implementation_type& impl);
-
-  // Determine whether the socket is open.
-  bool is_open(const base_implementation_type& impl) const
-  {
-    return impl.socket_ != invalid_socket;
-  }
-
-  // Destroy a socket implementation.
-  ASIO_DECL asio::error_code close(
-      base_implementation_type& impl, asio::error_code& ec);
-
-  // Release ownership of the socket.
-  ASIO_DECL socket_type release(
-      base_implementation_type& impl, asio::error_code& ec);
-
-  // Get the native socket representation.
-  native_handle_type native_handle(base_implementation_type& impl)
-  {
-    return impl.socket_;
-  }
-
-  // Cancel all operations associated with the socket.
-  ASIO_DECL asio::error_code cancel(
-      base_implementation_type& impl, asio::error_code& ec);
-
-  // Determine whether the socket is at the out-of-band data mark.
-  bool at_mark(const base_implementation_type& impl,
-      asio::error_code& ec) const
-  {
-    return socket_ops::sockatmark(impl.socket_, ec);
-  }
-
-  // Determine the number of bytes available for reading.
-  std::size_t available(const base_implementation_type& impl,
-      asio::error_code& ec) const
-  {
-    return socket_ops::available(impl.socket_, ec);
-  }
-
-  // Place the socket into the state where it will listen for new connections.
-  asio::error_code listen(base_implementation_type& impl,
-      int backlog, asio::error_code& ec)
-  {
-    socket_ops::listen(impl.socket_, backlog, ec);
-    return ec;
-  }
-
-  // Perform an IO control command on the socket.
-  template <typename IO_Control_Command>
-  asio::error_code io_control(base_implementation_type& impl,
-      IO_Control_Command& command, asio::error_code& ec)
-  {
-    socket_ops::ioctl(impl.socket_, impl.state_, command.name(),
-        static_cast<ioctl_arg_type*>(command.data()), ec);
-    return ec;
-  }
-
-  // Gets the non-blocking mode of the socket.
-  bool non_blocking(const base_implementation_type& impl) const
-  {
-    return (impl.state_ & socket_ops::user_set_non_blocking) != 0;
-  }
-
-  // Sets the non-blocking mode of the socket.
-  asio::error_code non_blocking(base_implementation_type& impl,
-      bool mode, asio::error_code& ec)
-  {
-    socket_ops::set_user_non_blocking(impl.socket_, impl.state_, mode, ec);
-    return ec;
-  }
-
-  // Gets the non-blocking mode of the native socket implementation.
-  bool native_non_blocking(const base_implementation_type& impl) const
-  {
-    return (impl.state_ & socket_ops::internal_non_blocking) != 0;
-  }
-
-  // Sets the non-blocking mode of the native socket implementation.
-  asio::error_code native_non_blocking(base_implementation_type& impl,
-      bool mode, asio::error_code& ec)
-  {
-    socket_ops::set_internal_non_blocking(impl.socket_, impl.state_, mode, ec);
-    return ec;
-  }
-
-  // Wait for the socket to become ready to read, ready to write, or to have
-  // pending error conditions.
-  asio::error_code wait(base_implementation_type& impl,
-      socket_base::wait_type w, asio::error_code& ec)
-  {
-    switch (w)
-    {
-    case socket_base::wait_read:
-      socket_ops::poll_read(impl.socket_, impl.state_, -1, ec);
-      break;
-    case socket_base::wait_write:
-      socket_ops::poll_write(impl.socket_, impl.state_, -1, ec);
-      break;
-    case socket_base::wait_error:
-      socket_ops::poll_error(impl.socket_, impl.state_, -1, ec);
-      break;
-    default:
-      ec = asio::error::invalid_argument;
-      break;
-    }
-
-    return ec;
-  }
-
-  // Asynchronously wait for the socket to become ready to read, ready to
-  // write, or to have pending error conditions.
-  template <typename Handler>
-  void async_wait(base_implementation_type& impl,
-      socket_base::wait_type w, Handler& handler)
-  {
-    bool is_continuation =
-      asio_handler_cont_helpers::is_continuation(handler);
-
-    // Allocate and construct an operation to wrap the handler.
-    typedef reactive_wait_op<Handler> op;
-    typename op::ptr p = { asio::detail::addressof(handler),
-      op::ptr::allocate(handler), 0 };
-    p.p = new (p.v) op(handler);
-
-    ASIO_HANDLER_CREATION((reactor_.context(), *p.p, "socket",
-          &impl, impl.socket_, "async_wait"));
-
-    int op_type;
-    switch (w)
-    {
-      case socket_base::wait_read:
-        op_type = reactor::read_op;
-        break;
-      case socket_base::wait_write:
-        op_type = reactor::write_op;
-        break;
-      case socket_base::wait_error:
-        op_type = reactor::except_op;
-        break;
-      default:
-        p.p->ec_ = asio::error::invalid_argument;
-        reactor_.post_immediate_completion(p.p, is_continuation);
-        p.v = p.p = 0;
-        return;
-    }
-
-    start_op(impl, op_type, p.p, is_continuation, false, false);
-    p.v = p.p = 0;
-  }
-
-  // Send the given data to the peer.
-  template <typename ConstBufferSequence>
-  size_t send(base_implementation_type& impl,
-      const ConstBufferSequence& buffers,
-      socket_base::message_flags flags, asio::error_code& ec)
-  {
-    buffer_sequence_adapter<asio::const_buffer,
-        ConstBufferSequence> bufs(buffers);
-
-    return socket_ops::sync_send(impl.socket_, impl.state_,
-        bufs.buffers(), bufs.count(), flags, bufs.all_empty(), ec);
-  }
-
-  // Wait until data can be sent without blocking.
-  size_t send(base_implementation_type& impl, const null_buffers&,
-      socket_base::message_flags, asio::error_code& ec)
-  {
-    // Wait for socket to become ready.
-    socket_ops::poll_write(impl.socket_, impl.state_, -1, ec);
-
-    return 0;
-  }
-
-  // Start an asynchronous send. The data being sent must be valid for the
-  // lifetime of the asynchronous operation.
-  template <typename ConstBufferSequence, typename Handler>
-  void async_send(base_implementation_type& impl,
-      const ConstBufferSequence& buffers,
-      socket_base::message_flags flags, Handler& handler)
-  {
-    bool is_continuation =
-      asio_handler_cont_helpers::is_continuation(handler);
-
-    // Allocate and construct an operation to wrap the handler.
-    typedef reactive_socket_send_op<ConstBufferSequence, Handler> op;
-    typename op::ptr p = { asio::detail::addressof(handler),
-      op::ptr::allocate(handler), 0 };
-    p.p = new (p.v) op(impl.socket_, impl.state_, buffers, flags, handler);
-
-    ASIO_HANDLER_CREATION((reactor_.context(), *p.p, "socket",
-          &impl, impl.socket_, "async_send"));
-
-    start_op(impl, reactor::write_op, p.p, is_continuation, true,
-        ((impl.state_ & socket_ops::stream_oriented)
-          && buffer_sequence_adapter<asio::const_buffer,
-            ConstBufferSequence>::all_empty(buffers)));
-    p.v = p.p = 0;
-  }
-
-  // Start an asynchronous wait until data can be sent without blocking.
-  template <typename Handler>
-  void async_send(base_implementation_type& impl, const null_buffers&,
-      socket_base::message_flags, Handler& handler)
-  {
-    bool is_continuation =
-      asio_handler_cont_helpers::is_continuation(handler);
-
-    // Allocate and construct an operation to wrap the handler.
-    typedef reactive_null_buffers_op<Handler> op;
-    typename op::ptr p = { asio::detail::addressof(handler),
-      op::ptr::allocate(handler), 0 };
-    p.p = new (p.v) op(handler);
-
-    ASIO_HANDLER_CREATION((reactor_.context(), *p.p, "socket",
-          &impl, impl.socket_, "async_send(null_buffers)"));
-
-    start_op(impl, reactor::write_op, p.p, is_continuation, false, false);
-    p.v = p.p = 0;
-  }
-
-  // Receive some data from the peer. Returns the number of bytes received.
-  template <typename MutableBufferSequence>
-  size_t receive(base_implementation_type& impl,
-      const MutableBufferSequence& buffers,
-      socket_base::message_flags flags, asio::error_code& ec)
-  {
-    buffer_sequence_adapter<asio::mutable_buffer,
-        MutableBufferSequence> bufs(buffers);
-
-    return socket_ops::sync_recv(impl.socket_, impl.state_,
-        bufs.buffers(), bufs.count(), flags, bufs.all_empty(), ec);
-  }
-
-  // Wait until data can be received without blocking.
-  size_t receive(base_implementation_type& impl, const null_buffers&,
-      socket_base::message_flags, asio::error_code& ec)
-  {
-    // Wait for socket to become ready.
-    socket_ops::poll_read(impl.socket_, impl.state_, -1, ec);
-
-    return 0;
-  }
-
-  // Start an asynchronous receive. The buffer for the data being received
-  // must be valid for the lifetime of the asynchronous operation.
-  template <typename MutableBufferSequence, typename Handler>
-  void async_receive(base_implementation_type& impl,
-      const MutableBufferSequence& buffers,
-      socket_base::message_flags flags, Handler& handler)
-  {
-    bool is_continuation =
-      asio_handler_cont_helpers::is_continuation(handler);
-
-    // Allocate and construct an operation to wrap the handler.
-    typedef reactive_socket_recv_op<MutableBufferSequence, Handler> op;
-    typename op::ptr p = { asio::detail::addressof(handler),
-      op::ptr::allocate(handler), 0 };
-    p.p = new (p.v) op(impl.socket_, impl.state_, buffers, flags, handler);
-
-    ASIO_HANDLER_CREATION((reactor_.context(), *p.p, "socket",
-          &impl, impl.socket_, "async_receive"));
-
-    start_op(impl,
-        (flags & socket_base::message_out_of_band)
-          ? reactor::except_op : reactor::read_op,
-        p.p, is_continuation,
-        (flags & socket_base::message_out_of_band) == 0,
-        ((impl.state_ & socket_ops::stream_oriented)
-          && buffer_sequence_adapter<asio::mutable_buffer,
-            MutableBufferSequence>::all_empty(buffers)));
-    p.v = p.p = 0;
-  }
-
-  // Wait until data can be received without blocking.
-  template <typename Handler>
-  void async_receive(base_implementation_type& impl, const null_buffers&,
-      socket_base::message_flags flags, Handler& handler)
-  {
-    bool is_continuation =
-      asio_handler_cont_helpers::is_continuation(handler);
-
-    // Allocate and construct an operation to wrap the handler.
-    typedef reactive_null_buffers_op<Handler> op;
-    typename op::ptr p = { asio::detail::addressof(handler),
-      op::ptr::allocate(handler), 0 };
-    p.p = new (p.v) op(handler);
-
-    ASIO_HANDLER_CREATION((reactor_.context(), *p.p, "socket",
-          &impl, impl.socket_, "async_receive(null_buffers)"));
-
-    start_op(impl,
-        (flags & socket_base::message_out_of_band)
-          ? reactor::except_op : reactor::read_op,
-        p.p, is_continuation, false, false);
-    p.v = p.p = 0;
-  }
-
-  // Receive some data with associated flags. Returns the number of bytes
-  // received.
-  template <typename MutableBufferSequence>
-  size_t receive_with_flags(base_implementation_type& impl,
-      const MutableBufferSequence& buffers,
-      socket_base::message_flags in_flags,
-      socket_base::message_flags& out_flags, asio::error_code& ec)
-  {
-    buffer_sequence_adapter<asio::mutable_buffer,
-        MutableBufferSequence> bufs(buffers);
-
-    return socket_ops::sync_recvmsg(impl.socket_, impl.state_,
-        bufs.buffers(), bufs.count(), in_flags, out_flags, ec);
-  }
-
-  // Wait until data can be received without blocking.
-  size_t receive_with_flags(base_implementation_type& impl,
-      const null_buffers&, socket_base::message_flags,
-      socket_base::message_flags& out_flags, asio::error_code& ec)
-  {
-    // Wait for socket to become ready.
-    socket_ops::poll_read(impl.socket_, impl.state_, -1, ec);
-
-    // Clear out_flags, since we cannot give it any other sensible value when
-    // performing a null_buffers operation.
-    out_flags = 0;
-
-    return 0;
-  }
-
-  // Start an asynchronous receive. The buffer for the data being received
-  // must be valid for the lifetime of the asynchronous operation.
-  template <typename MutableBufferSequence, typename Handler>
-  void async_receive_with_flags(base_implementation_type& impl,
-      const MutableBufferSequence& buffers, socket_base::message_flags in_flags,
-      socket_base::message_flags& out_flags, Handler& handler)
-  {
-    bool is_continuation =
-      asio_handler_cont_helpers::is_continuation(handler);
-
-    // Allocate and construct an operation to wrap the handler.
-    typedef reactive_socket_recvmsg_op<MutableBufferSequence, Handler> op;
-    typename op::ptr p = { asio::detail::addressof(handler),
-      op::ptr::allocate(handler), 0 };
-    p.p = new (p.v) op(impl.socket_, buffers, in_flags, out_flags, handler);
-
-    ASIO_HANDLER_CREATION((reactor_.context(), *p.p, "socket",
-          &impl, impl.socket_, "async_receive_with_flags"));
-
-    start_op(impl,
-        (in_flags & socket_base::message_out_of_band)
-          ? reactor::except_op : reactor::read_op,
-        p.p, is_continuation,
-        (in_flags & socket_base::message_out_of_band) == 0, false);
-    p.v = p.p = 0;
-  }
-
-  // Wait until data can be received without blocking.
-  template <typename Handler>
-  void async_receive_with_flags(base_implementation_type& impl,
-      const null_buffers&, socket_base::message_flags in_flags,
-      socket_base::message_flags& out_flags, Handler& handler)
-  {
-    bool is_continuation =
-      asio_handler_cont_helpers::is_continuation(handler);
-
-    // Allocate and construct an operation to wrap the handler.
-    typedef reactive_null_buffers_op<Handler> op;
-    typename op::ptr p = { asio::detail::addressof(handler),
-      op::ptr::allocate(handler), 0 };
-    p.p = new (p.v) op(handler);
-
-    ASIO_HANDLER_CREATION((reactor_.context(), *p.p, "socket",
-          &impl, impl.socket_, "async_receive_with_flags(null_buffers)"));
-
-    // Clear out_flags, since we cannot give it any other sensible value when
-    // performing a null_buffers operation.
-    out_flags = 0;
-
-    start_op(impl,
-        (in_flags & socket_base::message_out_of_band)
-          ? reactor::except_op : reactor::read_op,
-        p.p, is_continuation, false, false);
-    p.v = p.p = 0;
-  }
-
-protected:
-  // Open a new socket implementation.
-  ASIO_DECL asio::error_code do_open(
-      base_implementation_type& impl, int af,
-      int type, int protocol, asio::error_code& ec);
-
-  // Assign a native socket to a socket implementation.
-  ASIO_DECL asio::error_code do_assign(
-      base_implementation_type& impl, int type,
-      const native_handle_type& native_socket, asio::error_code& ec);
-
-  // Start the asynchronous read or write operation.
-  ASIO_DECL void start_op(base_implementation_type& impl, int op_type,
-      reactor_op* op, bool is_continuation, bool is_non_blocking, bool noop);
-
-  // Start the asynchronous accept operation.
-  ASIO_DECL void start_accept_op(base_implementation_type& impl,
-      reactor_op* op, bool is_continuation, bool peer_is_open);
-
-  // Start the asynchronous connect operation.
-  ASIO_DECL void start_connect_op(base_implementation_type& impl,
-      reactor_op* op, bool is_continuation,
-      const socket_addr_type* addr, size_t addrlen);
-
-  // The io_context that owns this socket service.
-  io_context& io_context_;
-
-  // The selector that performs event demultiplexing for the service.
-  reactor& reactor_;
-};
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#if defined(ASIO_HEADER_ONLY)
-# include "asio/detail/impl/reactive_socket_service_base.ipp"
-#endif // defined(ASIO_HEADER_ONLY)
-
-#endif // !defined(ASIO_HAS_IOCP)
-       //   && !defined(ASIO_WINDOWS_RUNTIME)
-
-#endif // ASIO_DETAIL_REACTIVE_SOCKET_SERVICE_BASE_HPP
diff --git a/lib/asio/detail/reactive_wait_op.hpp b/lib/asio/detail/reactive_wait_op.hpp
deleted file mode 100644
index 616d8b1..0000000
--- a/lib/asio/detail/reactive_wait_op.hpp
+++ /dev/null
@@ -1,90 +0,0 @@
-//
-// detail/reactive_wait_op.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_REACTIVE_WAIT_OP_HPP
-#define ASIO_DETAIL_REACTIVE_WAIT_OP_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-#include "asio/detail/fenced_block.hpp"
-#include "asio/detail/handler_alloc_helpers.hpp"
-#include "asio/detail/handler_invoke_helpers.hpp"
-#include "asio/detail/memory.hpp"
-#include "asio/detail/reactor_op.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-template <typename Handler>
-class reactive_wait_op : public reactor_op
-{
-public:
-  ASIO_DEFINE_HANDLER_PTR(reactive_wait_op);
-
-  reactive_wait_op(Handler& handler)
-    : reactor_op(&reactive_wait_op::do_perform,
-        &reactive_wait_op::do_complete),
-      handler_(ASIO_MOVE_CAST(Handler)(handler))
-  {
-    handler_work<Handler>::start(handler_);
-  }
-
-  static status do_perform(reactor_op*)
-  {
-    return done;
-  }
-
-  static void do_complete(void* owner, operation* base,
-      const asio::error_code& /*ec*/,
-      std::size_t /*bytes_transferred*/)
-  {
-    // Take ownership of the handler object.
-    reactive_wait_op* o(static_cast<reactive_wait_op*>(base));
-    ptr p = { asio::detail::addressof(o->handler_), o, o };
-    handler_work<Handler> w(o->handler_);
-
-    ASIO_HANDLER_COMPLETION((*o));
-
-    // Make a copy of the handler so that the memory can be deallocated before
-    // the upcall is made. Even if we're not about to make an upcall, a
-    // sub-object of the handler may be the true owner of the memory associated
-    // with the handler. Consequently, a local copy of the handler is required
-    // to ensure that any owning sub-object remains valid until after we have
-    // deallocated the memory here.
-    detail::binder1<Handler, asio::error_code>
-      handler(o->handler_, o->ec_);
-    p.h = asio::detail::addressof(handler.handler_);
-    p.reset();
-
-    // Make the upcall if required.
-    if (owner)
-    {
-      fenced_block b(fenced_block::half);
-      ASIO_HANDLER_INVOCATION_BEGIN((handler.arg1_));
-      w.complete(handler, handler.handler_);
-      ASIO_HANDLER_INVOCATION_END;
-    }
-  }
-
-private:
-  Handler handler_;
-};
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // ASIO_DETAIL_REACTIVE_WAIT_OP_HPP
diff --git a/lib/asio/detail/reactor.hpp b/lib/asio/detail/reactor.hpp
deleted file mode 100644
index 4750276..0000000
--- a/lib/asio/detail/reactor.hpp
+++ /dev/null
@@ -1,32 +0,0 @@
-//
-// detail/reactor.hpp
-// ~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_REACTOR_HPP
-#define ASIO_DETAIL_REACTOR_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/reactor_fwd.hpp"
-
-#if defined(ASIO_HAS_EPOLL)
-# include "asio/detail/epoll_reactor.hpp"
-#elif defined(ASIO_HAS_KQUEUE)
-# include "asio/detail/kqueue_reactor.hpp"
-#elif defined(ASIO_HAS_DEV_POLL)
-# include "asio/detail/dev_poll_reactor.hpp"
-#elif defined(ASIO_HAS_IOCP) || defined(ASIO_WINDOWS_RUNTIME)
-# include "asio/detail/null_reactor.hpp"
-#else
-# include "asio/detail/select_reactor.hpp"
-#endif
-
-#endif // ASIO_DETAIL_REACTOR_HPP
diff --git a/lib/asio/detail/reactor_fwd.hpp b/lib/asio/detail/reactor_fwd.hpp
deleted file mode 100644
index a4555c3..0000000
--- a/lib/asio/detail/reactor_fwd.hpp
+++ /dev/null
@@ -1,40 +0,0 @@
-//
-// detail/reactor_fwd.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_REACTOR_FWD_HPP
-#define ASIO_DETAIL_REACTOR_FWD_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-
-namespace asio {
-namespace detail {
-
-#if defined(ASIO_HAS_IOCP) || defined(ASIO_WINDOWS_RUNTIME)
-typedef class null_reactor reactor;
-#elif defined(ASIO_HAS_IOCP)
-typedef class select_reactor reactor;
-#elif defined(ASIO_HAS_EPOLL)
-typedef class epoll_reactor reactor;
-#elif defined(ASIO_HAS_KQUEUE)
-typedef class kqueue_reactor reactor;
-#elif defined(ASIO_HAS_DEV_POLL)
-typedef class dev_poll_reactor reactor;
-#else
-typedef class select_reactor reactor;
-#endif
-
-} // namespace detail
-} // namespace asio
-
-#endif // ASIO_DETAIL_REACTOR_FWD_HPP
diff --git a/lib/asio/detail/reactor_op.hpp b/lib/asio/detail/reactor_op.hpp
deleted file mode 100644
index faad1a7..0000000
--- a/lib/asio/detail/reactor_op.hpp
+++ /dev/null
@@ -1,65 +0,0 @@
-//
-// detail/reactor_op.hpp
-// ~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_REACTOR_OP_HPP
-#define ASIO_DETAIL_REACTOR_OP_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-#include "asio/detail/operation.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-class reactor_op
-  : public operation
-{
-public:
-  // The error code to be passed to the completion handler.
-  asio::error_code ec_;
-
-  // The number of bytes transferred, to be passed to the completion handler.
-  std::size_t bytes_transferred_;
-
-  // Status returned by perform function. May be used to decide whether it is
-  // worth performing more operations on the descriptor immediately.
-  enum status { not_done, done, done_and_exhausted };
-
-  // Perform the operation. Returns true if it is finished.
-  status perform()
-  {
-    return perform_func_(this);
-  }
-
-protected:
-  typedef status (*perform_func_type)(reactor_op*);
-
-  reactor_op(perform_func_type perform_func, func_type complete_func)
-    : operation(complete_func),
-      bytes_transferred_(0),
-      perform_func_(perform_func)
-  {
-  }
-
-private:
-  perform_func_type perform_func_;
-};
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // ASIO_DETAIL_REACTOR_OP_HPP
diff --git a/lib/asio/detail/reactor_op_queue.hpp b/lib/asio/detail/reactor_op_queue.hpp
deleted file mode 100644
index 898f31d..0000000
--- a/lib/asio/detail/reactor_op_queue.hpp
+++ /dev/null
@@ -1,168 +0,0 @@
-//
-// detail/reactor_op_queue.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_REACTOR_OP_QUEUE_HPP
-#define ASIO_DETAIL_REACTOR_OP_QUEUE_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-#include "asio/detail/hash_map.hpp"
-#include "asio/detail/noncopyable.hpp"
-#include "asio/detail/op_queue.hpp"
-#include "asio/detail/reactor_op.hpp"
-#include "asio/error.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-template <typename Descriptor>
-class reactor_op_queue
-  : private noncopyable
-{
-public:
-  typedef Descriptor key_type;
-
-  struct mapped_type : op_queue<reactor_op>
-  {
-    mapped_type() {}
-    mapped_type(const mapped_type&) {}
-    void operator=(const mapped_type&) {}
-  };
-
-  typedef typename hash_map<key_type, mapped_type>::value_type value_type;
-  typedef typename hash_map<key_type, mapped_type>::iterator iterator;
-
-  // Constructor.
-  reactor_op_queue()
-    : operations_()
-  {
-  }
-
-  // Obtain iterators to all registered descriptors.
-  iterator begin() { return operations_.begin(); }
-  iterator end() { return operations_.end(); }
-
-  // Add a new operation to the queue. Returns true if this is the only
-  // operation for the given descriptor, in which case the reactor's event
-  // demultiplexing function call may need to be interrupted and restarted.
-  bool enqueue_operation(Descriptor descriptor, reactor_op* op)
-  {
-    std::pair<iterator, bool> entry =
-      operations_.insert(value_type(descriptor, mapped_type()));
-    entry.first->second.push(op);
-    return entry.second;
-  }
-
-  // Cancel all operations associated with the descriptor identified by the
-  // supplied iterator. Any operations pending for the descriptor will be
-  // cancelled. Returns true if any operations were cancelled, in which case
-  // the reactor's event demultiplexing function may need to be interrupted and
-  // restarted.
-  bool cancel_operations(iterator i, op_queue<operation>& ops,
-      const asio::error_code& ec =
-        asio::error::operation_aborted)
-  {
-    if (i != operations_.end())
-    {
-      while (reactor_op* op = i->second.front())
-      {
-        op->ec_ = ec;
-        i->second.pop();
-        ops.push(op);
-      }
-      operations_.erase(i);
-      return true;
-    }
-
-    return false;
-  }
-
-  // Cancel all operations associated with the descriptor. Any operations
-  // pending for the descriptor will be cancelled. Returns true if any
-  // operations were cancelled, in which case the reactor's event
-  // demultiplexing function may need to be interrupted and restarted.
-  bool cancel_operations(Descriptor descriptor, op_queue<operation>& ops,
-      const asio::error_code& ec =
-        asio::error::operation_aborted)
-  {
-    return this->cancel_operations(operations_.find(descriptor), ops, ec);
-  }
-
-  // Whether there are no operations in the queue.
-  bool empty() const
-  {
-    return operations_.empty();
-  }
-
-  // Determine whether there are any operations associated with the descriptor.
-  bool has_operation(Descriptor descriptor) const
-  {
-    return operations_.find(descriptor) != operations_.end();
-  }
-
-  // Perform the operations corresponding to the descriptor identified by the
-  // supplied iterator. Returns true if there are still unfinished operations
-  // queued for the descriptor.
-  bool perform_operations(iterator i, op_queue<operation>& ops)
-  {
-    if (i != operations_.end())
-    {
-      while (reactor_op* op = i->second.front())
-      {
-        if (op->perform())
-        {
-          i->second.pop();
-          ops.push(op);
-        }
-        else
-        {
-          return true;
-        }
-      }
-      operations_.erase(i);
-    }
-    return false;
-  }
-
-  // Perform the operations corresponding to the descriptor. Returns true if
-  // there are still unfinished operations queued for the descriptor.
-  bool perform_operations(Descriptor descriptor, op_queue<operation>& ops)
-  {
-    return this->perform_operations(operations_.find(descriptor), ops);
-  }
-
-  // Get all operations owned by the queue.
-  void get_all_operations(op_queue<operation>& ops)
-  {
-    iterator i = operations_.begin();
-    while (i != operations_.end())
-    {
-      iterator op_iter = i++;
-      ops.push(op_iter->second);
-      operations_.erase(op_iter);
-    }
-  }
-
-private:
-  // The operations that are currently executing asynchronously.
-  hash_map<key_type, mapped_type> operations_;
-};
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // ASIO_DETAIL_REACTOR_OP_QUEUE_HPP
diff --git a/lib/asio/detail/recycling_allocator.hpp b/lib/asio/detail/recycling_allocator.hpp
deleted file mode 100644
index 964af1d..0000000
--- a/lib/asio/detail/recycling_allocator.hpp
+++ /dev/null
@@ -1,104 +0,0 @@
-//
-// detail/recycling_allocator.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_RECYCLING_ALLOCATOR_HPP
-#define ASIO_DETAIL_RECYCLING_ALLOCATOR_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-#include "asio/detail/memory.hpp"
-#include "asio/detail/thread_context.hpp"
-#include "asio/detail/thread_info_base.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-template <typename T>
-class recycling_allocator
-{
-public:
-  typedef T value_type;
-
-  template <typename U>
-  struct rebind
-  {
-    typedef recycling_allocator<U> other;
-  };
-
-  recycling_allocator()
-  {
-  }
-
-  template <typename U>
-  recycling_allocator(const recycling_allocator<U>&)
-  {
-  }
-
-  T* allocate(std::size_t n)
-  {
-    typedef thread_context::thread_call_stack call_stack;
-    void* p = thread_info_base::allocate(call_stack::top(), sizeof(T) * n);
-    return static_cast<T*>(p);
-  }
-
-  void deallocate(T* p, std::size_t n)
-  {
-    typedef thread_context::thread_call_stack call_stack;
-    thread_info_base::deallocate(call_stack::top(), p, sizeof(T) * n);
-  }
-};
-
-template <>
-class recycling_allocator<void>
-{
-public:
-  typedef void value_type;
-
-  template <typename U>
-  struct rebind
-  {
-    typedef recycling_allocator<U> other;
-  };
-
-  recycling_allocator()
-  {
-  }
-
-  template <typename U>
-  recycling_allocator(const recycling_allocator<U>&)
-  {
-  }
-};
-
-template <typename Allocator>
-struct get_recycling_allocator
-{
-  typedef Allocator type;
-  static type get(const Allocator& a) { return a; }
-};
-
-template <typename T>
-struct get_recycling_allocator<std::allocator<T> >
-{
-  typedef recycling_allocator<T> type;
-  static type get(const std::allocator<T>&) { return type(); }
-};
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // ASIO_DETAIL_RECYCLING_ALLOCATOR_HPP
diff --git a/lib/asio/detail/regex_fwd.hpp b/lib/asio/detail/regex_fwd.hpp
deleted file mode 100644
index dcf7d06..0000000
--- a/lib/asio/detail/regex_fwd.hpp
+++ /dev/null
@@ -1,35 +0,0 @@
-//
-// detail/regex_fwd.hpp
-// ~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_REGEX_FWD_HPP
-#define ASIO_DETAIL_REGEX_FWD_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#if defined(ASIO_HAS_BOOST_REGEX)
-
-#include <boost/regex_fwd.hpp>
-#include <boost/regex/v4/match_flags.hpp>
-
-namespace boost {
-
-template <class BidiIterator>
-struct sub_match;
-
-template <class BidiIterator, class Allocator>
-class match_results;
-
-} // namespace boost
-
-#endif // defined(ASIO_HAS_BOOST_REGEX)
-
-#endif // ASIO_DETAIL_REGEX_FWD_HPP
diff --git a/lib/asio/detail/resolve_endpoint_op.hpp b/lib/asio/detail/resolve_endpoint_op.hpp
deleted file mode 100644
index 8eee2f9..0000000
--- a/lib/asio/detail/resolve_endpoint_op.hpp
+++ /dev/null
@@ -1,122 +0,0 @@
-//
-// detail/resolve_endpoint_op.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_RESOLVER_ENDPOINT_OP_HPP
-#define ASIO_DETAIL_RESOLVER_ENDPOINT_OP_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-#include "asio/error.hpp"
-#include "asio/io_context.hpp"
-#include "asio/ip/basic_resolver_results.hpp"
-#include "asio/detail/bind_handler.hpp"
-#include "asio/detail/fenced_block.hpp"
-#include "asio/detail/handler_alloc_helpers.hpp"
-#include "asio/detail/handler_invoke_helpers.hpp"
-#include "asio/detail/memory.hpp"
-#include "asio/detail/resolve_op.hpp"
-#include "asio/detail/socket_ops.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-template <typename Protocol, typename Handler>
-class resolve_endpoint_op : public resolve_op
-{
-public:
-  ASIO_DEFINE_HANDLER_PTR(resolve_endpoint_op);
-
-  typedef typename Protocol::endpoint endpoint_type;
-  typedef asio::ip::basic_resolver_results<Protocol> results_type;
-
-  resolve_endpoint_op(socket_ops::weak_cancel_token_type cancel_token,
-      const endpoint_type& endpoint, io_context_impl& ioc, Handler& handler)
-    : resolve_op(&resolve_endpoint_op::do_complete),
-      cancel_token_(cancel_token),
-      endpoint_(endpoint),
-      io_context_impl_(ioc),
-      handler_(ASIO_MOVE_CAST(Handler)(handler))
-  {
-    handler_work<Handler>::start(handler_);
-  }
-
-  static void do_complete(void* owner, operation* base,
-      const asio::error_code& /*ec*/,
-      std::size_t /*bytes_transferred*/)
-  {
-    // Take ownership of the operation object.
-    resolve_endpoint_op* o(static_cast<resolve_endpoint_op*>(base));
-    ptr p = { asio::detail::addressof(o->handler_), o, o };
-    handler_work<Handler> w(o->handler_);
-
-    if (owner && owner != &o->io_context_impl_)
-    {
-      // The operation is being run on the worker io_context. Time to perform
-      // the resolver operation.
-    
-      // Perform the blocking endpoint resolution operation.
-      char host_name[NI_MAXHOST];
-      char service_name[NI_MAXSERV];
-      socket_ops::background_getnameinfo(o->cancel_token_, o->endpoint_.data(),
-          o->endpoint_.size(), host_name, NI_MAXHOST, service_name, NI_MAXSERV,
-          o->endpoint_.protocol().type(), o->ec_);
-      o->results_ = results_type::create(o->endpoint_, host_name, service_name);
-
-      // Pass operation back to main io_context for completion.
-      o->io_context_impl_.post_deferred_completion(o);
-      p.v = p.p = 0;
-    }
-    else
-    {
-      // The operation has been returned to the main io_context. The completion
-      // handler is ready to be delivered.
-
-      ASIO_HANDLER_COMPLETION((*o));
-
-      // Make a copy of the handler so that the memory can be deallocated
-      // before the upcall is made. Even if we're not about to make an upcall,
-      // a sub-object of the handler may be the true owner of the memory
-      // associated with the handler. Consequently, a local copy of the handler
-      // is required to ensure that any owning sub-object remains valid until
-      // after we have deallocated the memory here.
-      detail::binder2<Handler, asio::error_code, results_type>
-        handler(o->handler_, o->ec_, o->results_);
-      p.h = asio::detail::addressof(handler.handler_);
-      p.reset();
-
-      if (owner)
-      {
-        fenced_block b(fenced_block::half);
-        ASIO_HANDLER_INVOCATION_BEGIN((handler.arg1_, "..."));
-        w.complete(handler, handler.handler_);
-        ASIO_HANDLER_INVOCATION_END;
-      }
-    }
-  }
-
-private:
-  socket_ops::weak_cancel_token_type cancel_token_;
-  endpoint_type endpoint_;
-  io_context_impl& io_context_impl_;
-  Handler handler_;
-  results_type results_;
-};
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // ASIO_DETAIL_RESOLVER_ENDPOINT_OP_HPP
diff --git a/lib/asio/detail/resolve_op.hpp b/lib/asio/detail/resolve_op.hpp
deleted file mode 100644
index a528aa8..0000000
--- a/lib/asio/detail/resolve_op.hpp
+++ /dev/null
@@ -1,45 +0,0 @@
-//
-// detail/resolve_op.hpp
-// ~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_RESOLVE_OP_HPP
-#define ASIO_DETAIL_RESOLVE_OP_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-#include "asio/error.hpp"
-#include "asio/detail/operation.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-class resolve_op : public operation
-{
-public:
-  // The error code to be passed to the completion handler.
-  asio::error_code ec_;
-
-protected:
-  resolve_op(func_type complete_func)
-    : operation(complete_func)
-  {
-  }
-};
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // ASIO_DETAIL_RESOLVE_OP_HPP
diff --git a/lib/asio/detail/resolve_query_op.hpp b/lib/asio/detail/resolve_query_op.hpp
deleted file mode 100644
index 0ec5a32..0000000
--- a/lib/asio/detail/resolve_query_op.hpp
+++ /dev/null
@@ -1,134 +0,0 @@
-//
-// detail/resolve_query_op.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_RESOLVE_QUERY_OP_HPP
-#define ASIO_DETAIL_RESOLVE_QUERY_OP_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-#include "asio/error.hpp"
-#include "asio/io_context.hpp"
-#include "asio/ip/basic_resolver_query.hpp"
-#include "asio/ip/basic_resolver_results.hpp"
-#include "asio/detail/bind_handler.hpp"
-#include "asio/detail/fenced_block.hpp"
-#include "asio/detail/handler_alloc_helpers.hpp"
-#include "asio/detail/handler_invoke_helpers.hpp"
-#include "asio/detail/memory.hpp"
-#include "asio/detail/resolve_op.hpp"
-#include "asio/detail/socket_ops.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-template <typename Protocol, typename Handler>
-class resolve_query_op : public resolve_op
-{
-public:
-  ASIO_DEFINE_HANDLER_PTR(resolve_query_op);
-
-  typedef asio::ip::basic_resolver_query<Protocol> query_type;
-  typedef asio::ip::basic_resolver_results<Protocol> results_type;
-
-  resolve_query_op(socket_ops::weak_cancel_token_type cancel_token,
-      const query_type& query, io_context_impl& ioc, Handler& handler)
-    : resolve_op(&resolve_query_op::do_complete),
-      cancel_token_(cancel_token),
-      query_(query),
-      io_context_impl_(ioc),
-      handler_(ASIO_MOVE_CAST(Handler)(handler)),
-      addrinfo_(0)
-  {
-    handler_work<Handler>::start(handler_);
-  }
-
-  ~resolve_query_op()
-  {
-    if (addrinfo_)
-      socket_ops::freeaddrinfo(addrinfo_);
-  }
-
-  static void do_complete(void* owner, operation* base,
-      const asio::error_code& /*ec*/,
-      std::size_t /*bytes_transferred*/)
-  {
-    // Take ownership of the operation object.
-    resolve_query_op* o(static_cast<resolve_query_op*>(base));
-    ptr p = { asio::detail::addressof(o->handler_), o, o };
-
-    if (owner && owner != &o->io_context_impl_)
-    {
-      // The operation is being run on the worker io_context. Time to perform
-      // the resolver operation.
-    
-      // Perform the blocking host resolution operation.
-      socket_ops::background_getaddrinfo(o->cancel_token_,
-          o->query_.host_name().c_str(), o->query_.service_name().c_str(),
-          o->query_.hints(), &o->addrinfo_, o->ec_);
-
-      // Pass operation back to main io_context for completion.
-      o->io_context_impl_.post_deferred_completion(o);
-      p.v = p.p = 0;
-    }
-    else
-    {
-      // The operation has been returned to the main io_context. The completion
-      // handler is ready to be delivered.
-
-      // Take ownership of the operation's outstanding work.
-      handler_work<Handler> w(o->handler_);
-
-      ASIO_HANDLER_COMPLETION((*o));
-
-      // Make a copy of the handler so that the memory can be deallocated
-      // before the upcall is made. Even if we're not about to make an upcall,
-      // a sub-object of the handler may be the true owner of the memory
-      // associated with the handler. Consequently, a local copy of the handler
-      // is required to ensure that any owning sub-object remains valid until
-      // after we have deallocated the memory here.
-      detail::binder2<Handler, asio::error_code, results_type>
-        handler(o->handler_, o->ec_, results_type());
-      p.h = asio::detail::addressof(handler.handler_);
-      if (o->addrinfo_)
-      {
-        handler.arg2_ = results_type::create(o->addrinfo_,
-            o->query_.host_name(), o->query_.service_name());
-      }
-      p.reset();
-
-      if (owner)
-      {
-        fenced_block b(fenced_block::half);
-        ASIO_HANDLER_INVOCATION_BEGIN((handler.arg1_, "..."));
-        w.complete(handler, handler.handler_);
-        ASIO_HANDLER_INVOCATION_END;
-      }
-    }
-  }
-
-private:
-  socket_ops::weak_cancel_token_type cancel_token_;
-  query_type query_;
-  io_context_impl& io_context_impl_;
-  Handler handler_;
-  asio::detail::addrinfo_type* addrinfo_;
-};
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // ASIO_DETAIL_RESOLVE_QUERY_OP_HPP
diff --git a/lib/asio/detail/resolver_service.hpp b/lib/asio/detail/resolver_service.hpp
deleted file mode 100644
index 11a94d1..0000000
--- a/lib/asio/detail/resolver_service.hpp
+++ /dev/null
@@ -1,145 +0,0 @@
-//
-// detail/resolver_service.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_RESOLVER_SERVICE_HPP
-#define ASIO_DETAIL_RESOLVER_SERVICE_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-
-#if !defined(ASIO_WINDOWS_RUNTIME)
-
-#include "asio/ip/basic_resolver_query.hpp"
-#include "asio/ip/basic_resolver_results.hpp"
-#include "asio/detail/concurrency_hint.hpp"
-#include "asio/detail/memory.hpp"
-#include "asio/detail/resolve_endpoint_op.hpp"
-#include "asio/detail/resolve_query_op.hpp"
-#include "asio/detail/resolver_service_base.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-template <typename Protocol>
-class resolver_service :
-  public service_base<resolver_service<Protocol> >,
-  public resolver_service_base
-{
-public:
-  // The implementation type of the resolver. A cancellation token is used to
-  // indicate to the background thread that the operation has been cancelled.
-  typedef socket_ops::shared_cancel_token_type implementation_type;
-
-  // The endpoint type.
-  typedef typename Protocol::endpoint endpoint_type;
-
-  // The query type.
-  typedef asio::ip::basic_resolver_query<Protocol> query_type;
-
-  // The results type.
-  typedef asio::ip::basic_resolver_results<Protocol> results_type;
-
-  // Constructor.
-  resolver_service(asio::io_context& io_context)
-    : service_base<resolver_service<Protocol> >(io_context),
-      resolver_service_base(io_context)
-  {
-  }
-
-  // Destroy all user-defined handler objects owned by the service.
-  void shutdown()
-  {
-    this->base_shutdown();
-  }
-
-  // Perform any fork-related housekeeping.
-  void notify_fork(asio::io_context::fork_event fork_ev)
-  {
-    this->base_notify_fork(fork_ev);
-  }
-
-  // Resolve a query to a list of entries.
-  results_type resolve(implementation_type&, const query_type& query,
-      asio::error_code& ec)
-  {
-    asio::detail::addrinfo_type* address_info = 0;
-
-    socket_ops::getaddrinfo(query.host_name().c_str(),
-        query.service_name().c_str(), query.hints(), &address_info, ec);
-    auto_addrinfo auto_address_info(address_info);
-
-    return ec ? results_type() : results_type::create(
-        address_info, query.host_name(), query.service_name());
-  }
-
-  // Asynchronously resolve a query to a list of entries.
-  template <typename Handler>
-  void async_resolve(implementation_type& impl,
-      const query_type& query, Handler& handler)
-  {
-    // Allocate and construct an operation to wrap the handler.
-    typedef resolve_query_op<Protocol, Handler> op;
-    typename op::ptr p = { asio::detail::addressof(handler),
-      op::ptr::allocate(handler), 0 };
-    p.p = new (p.v) op(impl, query, io_context_impl_, handler);
-
-    ASIO_HANDLER_CREATION((io_context_impl_.context(),
-          *p.p, "resolver", &impl, 0, "async_resolve"));
-
-    start_resolve_op(p.p);
-    p.v = p.p = 0;
-  }
-
-  // Resolve an endpoint to a list of entries.
-  results_type resolve(implementation_type&,
-      const endpoint_type& endpoint, asio::error_code& ec)
-  {
-    char host_name[NI_MAXHOST];
-    char service_name[NI_MAXSERV];
-    socket_ops::sync_getnameinfo(endpoint.data(), endpoint.size(),
-        host_name, NI_MAXHOST, service_name, NI_MAXSERV,
-        endpoint.protocol().type(), ec);
-
-    return ec ? results_type() : results_type::create(
-        endpoint, host_name, service_name);
-  }
-
-  // Asynchronously resolve an endpoint to a list of entries.
-  template <typename Handler>
-  void async_resolve(implementation_type& impl,
-      const endpoint_type& endpoint, Handler& handler)
-  {
-    // Allocate and construct an operation to wrap the handler.
-    typedef resolve_endpoint_op<Protocol, Handler> op;
-    typename op::ptr p = { asio::detail::addressof(handler),
-      op::ptr::allocate(handler), 0 };
-    p.p = new (p.v) op(impl, endpoint, io_context_impl_, handler);
-
-    ASIO_HANDLER_CREATION((io_context_impl_.context(),
-          *p.p, "resolver", &impl, 0, "async_resolve"));
-
-    start_resolve_op(p.p);
-    p.v = p.p = 0;
-  }
-};
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // !defined(ASIO_WINDOWS_RUNTIME)
-
-#endif // ASIO_DETAIL_RESOLVER_SERVICE_HPP
diff --git a/lib/asio/detail/resolver_service_base.hpp b/lib/asio/detail/resolver_service_base.hpp
deleted file mode 100644
index 10a7922..0000000
--- a/lib/asio/detail/resolver_service_base.hpp
+++ /dev/null
@@ -1,140 +0,0 @@
-//
-// detail/resolver_service_base.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_RESOLVER_SERVICE_BASE_HPP
-#define ASIO_DETAIL_RESOLVER_SERVICE_BASE_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-#include "asio/error.hpp"
-#include "asio/executor_work_guard.hpp"
-#include "asio/io_context.hpp"
-#include "asio/detail/mutex.hpp"
-#include "asio/detail/noncopyable.hpp"
-#include "asio/detail/resolve_op.hpp"
-#include "asio/detail/socket_ops.hpp"
-#include "asio/detail/socket_types.hpp"
-#include "asio/detail/scoped_ptr.hpp"
-#include "asio/detail/thread.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-class resolver_service_base
-{
-public:
-  // The implementation type of the resolver. A cancellation token is used to
-  // indicate to the background thread that the operation has been cancelled.
-  typedef socket_ops::shared_cancel_token_type implementation_type;
-
-  // Constructor.
-  ASIO_DECL resolver_service_base(asio::io_context& io_context);
-
-  // Destructor.
-  ASIO_DECL ~resolver_service_base();
-
-  // Destroy all user-defined handler objects owned by the service.
-  ASIO_DECL void base_shutdown();
-
-  // Perform any fork-related housekeeping.
-  ASIO_DECL void base_notify_fork(
-      asio::io_context::fork_event fork_ev);
-
-  // Construct a new resolver implementation.
-  ASIO_DECL void construct(implementation_type& impl);
-
-  // Destroy a resolver implementation.
-  ASIO_DECL void destroy(implementation_type&);
-
-  // Move-construct a new resolver implementation.
-  ASIO_DECL void move_construct(implementation_type& impl,
-      implementation_type& other_impl);
-
-  // Move-assign from another resolver implementation.
-  ASIO_DECL void move_assign(implementation_type& impl,
-      resolver_service_base& other_service,
-      implementation_type& other_impl);
-
-  // Cancel pending asynchronous operations.
-  ASIO_DECL void cancel(implementation_type& impl);
-
-protected:
-  // Helper function to start an asynchronous resolve operation.
-  ASIO_DECL void start_resolve_op(resolve_op* op);
-
-#if !defined(ASIO_WINDOWS_RUNTIME)
-  // Helper class to perform exception-safe cleanup of addrinfo objects.
-  class auto_addrinfo
-    : private asio::detail::noncopyable
-  {
-  public:
-    explicit auto_addrinfo(asio::detail::addrinfo_type* ai)
-      : ai_(ai)
-    {
-    }
-
-    ~auto_addrinfo()
-    {
-      if (ai_)
-        socket_ops::freeaddrinfo(ai_);
-    }
-
-    operator asio::detail::addrinfo_type*()
-    {
-      return ai_;
-    }
-
-  private:
-    asio::detail::addrinfo_type* ai_;
-  };
-#endif // !defined(ASIO_WINDOWS_RUNTIME)
-
-  // Helper class to run the work io_context in a thread.
-  class work_io_context_runner;
-
-  // Start the work thread if it's not already running.
-  ASIO_DECL void start_work_thread();
-
-  // The io_context implementation used to post completions.
-  io_context_impl& io_context_impl_;
-
-private:
-  // Mutex to protect access to internal data.
-  asio::detail::mutex mutex_;
-
-  // Private io_context used for performing asynchronous host resolution.
-  asio::detail::scoped_ptr<asio::io_context> work_io_context_;
-
-  // The work io_context implementation used to post completions.
-  io_context_impl& work_io_context_impl_;
-
-  // Work for the private io_context to perform.
-  asio::executor_work_guard<
-      asio::io_context::executor_type> work_;
-
-  // Thread used for running the work io_context's run loop.
-  asio::detail::scoped_ptr<asio::detail::thread> work_thread_;
-};
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#if defined(ASIO_HEADER_ONLY)
-# include "asio/detail/impl/resolver_service_base.ipp"
-#endif // defined(ASIO_HEADER_ONLY)
-
-#endif // ASIO_DETAIL_RESOLVER_SERVICE_BASE_HPP
diff --git a/lib/asio/detail/scheduler.hpp b/lib/asio/detail/scheduler.hpp
deleted file mode 100644
index 10c29b7..0000000
--- a/lib/asio/detail/scheduler.hpp
+++ /dev/null
@@ -1,213 +0,0 @@
-//
-// detail/scheduler.hpp
-// ~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_SCHEDULER_HPP
-#define ASIO_DETAIL_SCHEDULER_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-
-#include "asio/error_code.hpp"
-#include "asio/execution_context.hpp"
-#include "asio/detail/atomic_count.hpp"
-#include "asio/detail/conditionally_enabled_event.hpp"
-#include "asio/detail/conditionally_enabled_mutex.hpp"
-#include "asio/detail/op_queue.hpp"
-#include "asio/detail/reactor_fwd.hpp"
-#include "asio/detail/scheduler_operation.hpp"
-#include "asio/detail/thread_context.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-struct scheduler_thread_info;
-
-class scheduler
-  : public execution_context_service_base<scheduler>,
-    public thread_context
-{
-public:
-  typedef scheduler_operation operation;
-
-  // Constructor. Specifies the number of concurrent threads that are likely to
-  // run the scheduler. If set to 1 certain optimisation are performed.
-  ASIO_DECL scheduler(asio::execution_context& ctx,
-      int concurrency_hint = 0);
-
-  // Destroy all user-defined handler objects owned by the service.
-  ASIO_DECL void shutdown();
-
-  // Initialise the task, if required.
-  ASIO_DECL void init_task();
-
-  // Run the event loop until interrupted or no more work.
-  ASIO_DECL std::size_t run(asio::error_code& ec);
-
-  // Run until interrupted or one operation is performed.
-  ASIO_DECL std::size_t run_one(asio::error_code& ec);
-
-  // Run until timeout, interrupted, or one operation is performed.
-  ASIO_DECL std::size_t wait_one(
-      long usec, asio::error_code& ec);
-
-  // Poll for operations without blocking.
-  ASIO_DECL std::size_t poll(asio::error_code& ec);
-
-  // Poll for one operation without blocking.
-  ASIO_DECL std::size_t poll_one(asio::error_code& ec);
-
-  // Interrupt the event processing loop.
-  ASIO_DECL void stop();
-
-  // Determine whether the scheduler is stopped.
-  ASIO_DECL bool stopped() const;
-
-  // Restart in preparation for a subsequent run invocation.
-  ASIO_DECL void restart();
-
-  // Notify that some work has started.
-  void work_started()
-  {
-    ++outstanding_work_;
-  }
-
-  // Used to compensate for a forthcoming work_finished call. Must be called
-  // from within a scheduler-owned thread.
-  ASIO_DECL void compensating_work_started();
-
-  // Notify that some work has finished.
-  void work_finished()
-  {
-    if (--outstanding_work_ == 0)
-      stop();
-  }
-
-  // Return whether a handler can be dispatched immediately.
-  bool can_dispatch()
-  {
-    return thread_call_stack::contains(this) != 0;
-  }
-
-  // Request invocation of the given operation and return immediately. Assumes
-  // that work_started() has not yet been called for the operation.
-  ASIO_DECL void post_immediate_completion(
-      operation* op, bool is_continuation);
-
-  // Request invocation of the given operation and return immediately. Assumes
-  // that work_started() was previously called for the operation.
-  ASIO_DECL void post_deferred_completion(operation* op);
-
-  // Request invocation of the given operations and return immediately. Assumes
-  // that work_started() was previously called for each operation.
-  ASIO_DECL void post_deferred_completions(op_queue<operation>& ops);
-
-  // Enqueue the given operation following a failed attempt to dispatch the
-  // operation for immediate invocation.
-  ASIO_DECL void do_dispatch(operation* op);
-
-  // Process unfinished operations as part of a shutdownoperation. Assumes that
-  // work_started() was previously called for the operations.
-  ASIO_DECL void abandon_operations(op_queue<operation>& ops);
-
-  // Get the concurrency hint that was used to initialise the scheduler.
-  int concurrency_hint() const
-  {
-    return concurrency_hint_;
-  }
-
-private:
-  // The mutex type used by this scheduler.
-  typedef conditionally_enabled_mutex mutex;
-
-  // The event type used by this scheduler.
-  typedef conditionally_enabled_event event;
-
-  // Structure containing thread-specific data.
-  typedef scheduler_thread_info thread_info;
-
-  // Run at most one operation. May block.
-  ASIO_DECL std::size_t do_run_one(mutex::scoped_lock& lock,
-      thread_info& this_thread, const asio::error_code& ec);
-
-  // Run at most one operation with a timeout. May block.
-  ASIO_DECL std::size_t do_wait_one(mutex::scoped_lock& lock,
-      thread_info& this_thread, long usec, const asio::error_code& ec);
-
-  // Poll for at most one operation.
-  ASIO_DECL std::size_t do_poll_one(mutex::scoped_lock& lock,
-      thread_info& this_thread, const asio::error_code& ec);
-
-  // Stop the task and all idle threads.
-  ASIO_DECL void stop_all_threads(mutex::scoped_lock& lock);
-
-  // Wake a single idle thread, or the task, and always unlock the mutex.
-  ASIO_DECL void wake_one_thread_and_unlock(
-      mutex::scoped_lock& lock);
-
-  // Helper class to perform task-related operations on block exit.
-  struct task_cleanup;
-  friend struct task_cleanup;
-
-  // Helper class to call work-related operations on block exit.
-  struct work_cleanup;
-  friend struct work_cleanup;
-
-  // Whether to optimise for single-threaded use cases.
-  const bool one_thread_;
-
-  // Mutex to protect access to internal data.
-  mutable mutex mutex_;
-
-  // Event to wake up blocked threads.
-  event wakeup_event_;
-
-  // The task to be run by this service.
-  reactor* task_;
-
-  // Operation object to represent the position of the task in the queue.
-  struct task_operation : operation
-  {
-    task_operation() : operation(0) {}
-  } task_operation_;
-
-  // Whether the task has been interrupted.
-  bool task_interrupted_;
-
-  // The count of unfinished work.
-  atomic_count outstanding_work_;
-
-  // The queue of handlers that are ready to be delivered.
-  op_queue<operation> op_queue_;
-
-  // Flag to indicate that the dispatcher has been stopped.
-  bool stopped_;
-
-  // Flag to indicate that the dispatcher has been shut down.
-  bool shutdown_;
-
-  // The concurrency hint used to initialise the scheduler.
-  const int concurrency_hint_;
-};
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#if defined(ASIO_HEADER_ONLY)
-# include "asio/detail/impl/scheduler.ipp"
-#endif // defined(ASIO_HEADER_ONLY)
-
-#endif // ASIO_DETAIL_SCHEDULER_HPP
diff --git a/lib/asio/detail/scheduler_operation.hpp b/lib/asio/detail/scheduler_operation.hpp
deleted file mode 100644
index 1c2ce02..0000000
--- a/lib/asio/detail/scheduler_operation.hpp
+++ /dev/null
@@ -1,78 +0,0 @@
-//
-// detail/scheduler_operation.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_SCHEDULER_OPERATION_HPP
-#define ASIO_DETAIL_SCHEDULER_OPERATION_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/error_code.hpp"
-#include "asio/detail/handler_tracking.hpp"
-#include "asio/detail/op_queue.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-class scheduler;
-
-// Base class for all operations. A function pointer is used instead of virtual
-// functions to avoid the associated overhead.
-class scheduler_operation ASIO_INHERIT_TRACKED_HANDLER
-{
-public:
-  typedef scheduler_operation operation_type;
-
-  void complete(void* owner, const asio::error_code& ec,
-      std::size_t bytes_transferred)
-  {
-    func_(owner, this, ec, bytes_transferred);
-  }
-
-  void destroy()
-  {
-    func_(0, this, asio::error_code(), 0);
-  }
-
-protected:
-  typedef void (*func_type)(void*,
-      scheduler_operation*,
-      const asio::error_code&, std::size_t);
-
-  scheduler_operation(func_type func)
-    : next_(0),
-      func_(func),
-      task_result_(0)
-  {
-  }
-
-  // Prevents deletion through this type.
-  ~scheduler_operation()
-  {
-  }
-
-private:
-  friend class op_queue_access;
-  scheduler_operation* next_;
-  func_type func_;
-protected:
-  friend class scheduler;
-  unsigned int task_result_; // Passed into bytes transferred.
-};
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // ASIO_DETAIL_SCHEDULER_OPERATION_HPP
diff --git a/lib/asio/detail/scheduler_thread_info.hpp b/lib/asio/detail/scheduler_thread_info.hpp
deleted file mode 100644
index 2ffe013..0000000
--- a/lib/asio/detail/scheduler_thread_info.hpp
+++ /dev/null
@@ -1,40 +0,0 @@
-//
-// detail/scheduler_thread_info.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_SCHEDULER_THREAD_INFO_HPP
-#define ASIO_DETAIL_SCHEDULER_THREAD_INFO_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/op_queue.hpp"
-#include "asio/detail/thread_info_base.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-class scheduler;
-class scheduler_operation;
-
-struct scheduler_thread_info : public thread_info_base
-{
-  op_queue<scheduler_operation> private_op_queue;
-  long private_outstanding_work;
-};
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // ASIO_DETAIL_SCHEDULER_THREAD_INFO_HPP
diff --git a/lib/asio/detail/scoped_lock.hpp b/lib/asio/detail/scoped_lock.hpp
deleted file mode 100644
index 6cbce38..0000000
--- a/lib/asio/detail/scoped_lock.hpp
+++ /dev/null
@@ -1,101 +0,0 @@
-//
-// detail/scoped_lock.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_SCOPED_LOCK_HPP
-#define ASIO_DETAIL_SCOPED_LOCK_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/noncopyable.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-// Helper class to lock and unlock a mutex automatically.
-template <typename Mutex>
-class scoped_lock
-  : private noncopyable
-{
-public:
-  // Tag type used to distinguish constructors.
-  enum adopt_lock_t { adopt_lock };
-
-  // Constructor adopts a lock that is already held.
-  scoped_lock(Mutex& m, adopt_lock_t)
-    : mutex_(m),
-      locked_(true)
-  {
-  }
-
-  // Constructor acquires the lock.
-  explicit scoped_lock(Mutex& m)
-    : mutex_(m)
-  {
-    mutex_.lock();
-    locked_ = true;
-  }
-
-  // Destructor releases the lock.
-  ~scoped_lock()
-  {
-    if (locked_)
-      mutex_.unlock();
-  }
-
-  // Explicitly acquire the lock.
-  void lock()
-  {
-    if (!locked_)
-    {
-      mutex_.lock();
-      locked_ = true;
-    }
-  }
-
-  // Explicitly release the lock.
-  void unlock()
-  {
-    if (locked_)
-    {
-      mutex_.unlock();
-      locked_ = false;
-    }
-  }
-
-  // Test whether the lock is held.
-  bool locked() const
-  {
-    return locked_;
-  }
-
-  // Get the underlying mutex.
-  Mutex& mutex()
-  {
-    return mutex_;
-  }
-
-private:
-  // The underlying mutex.
-  Mutex& mutex_;
-
-  // Whether the mutex is currently locked or unlocked.
-  bool locked_;
-};
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // ASIO_DETAIL_SCOPED_LOCK_HPP
diff --git a/lib/asio/detail/scoped_ptr.hpp b/lib/asio/detail/scoped_ptr.hpp
deleted file mode 100644
index 3449c53..0000000
--- a/lib/asio/detail/scoped_ptr.hpp
+++ /dev/null
@@ -1,87 +0,0 @@
-//
-// detail/scoped_ptr.hpp
-// ~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_SCOPED_PTR_HPP
-#define ASIO_DETAIL_SCOPED_PTR_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-template <typename T>
-class scoped_ptr
-{
-public:
-  // Constructor.
-  explicit scoped_ptr(T* p = 0)
-    : p_(p)
-  {
-  }
-
-  // Destructor.
-  ~scoped_ptr()
-  {
-    delete p_;
-  }
-
-  // Access.
-  T* get()
-  {
-    return p_;
-  }
-
-  // Access.
-  T* operator->()
-  {
-    return p_;
-  }
-
-  // Dereference.
-  T& operator*()
-  {
-    return *p_;
-  }
-
-  // Reset pointer.
-  void reset(T* p = 0)
-  {
-    delete p_;
-    p_ = p;
-  }
-
-  // Release ownership of the pointer.
-  T* release()
-  {
-    T* tmp = p_;
-    p_ = 0;
-    return tmp;
-  }
-
-private:
-  // Disallow copying and assignment.
-  scoped_ptr(const scoped_ptr&);
-  scoped_ptr& operator=(const scoped_ptr&);
-
-  T* p_;
-};
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // ASIO_DETAIL_SCOPED_PTR_HPP
diff --git a/lib/asio/detail/select_interrupter.hpp b/lib/asio/detail/select_interrupter.hpp
deleted file mode 100644
index 1a07599..0000000
--- a/lib/asio/detail/select_interrupter.hpp
+++ /dev/null
@@ -1,46 +0,0 @@
-//
-// detail/select_interrupter.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_SELECT_INTERRUPTER_HPP
-#define ASIO_DETAIL_SELECT_INTERRUPTER_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-
-#if !defined(ASIO_WINDOWS_RUNTIME)
-
-#if defined(ASIO_WINDOWS) || defined(__CYGWIN__) || defined(__SYMBIAN32__)
-# include "asio/detail/socket_select_interrupter.hpp"
-#elif defined(ASIO_HAS_EVENTFD)
-# include "asio/detail/eventfd_select_interrupter.hpp"
-#else
-# include "asio/detail/pipe_select_interrupter.hpp"
-#endif
-
-namespace asio {
-namespace detail {
-
-#if defined(ASIO_WINDOWS) || defined(__CYGWIN__) || defined(__SYMBIAN32__)
-typedef socket_select_interrupter select_interrupter;
-#elif defined(ASIO_HAS_EVENTFD)
-typedef eventfd_select_interrupter select_interrupter;
-#else
-typedef pipe_select_interrupter select_interrupter;
-#endif
-
-} // namespace detail
-} // namespace asio
-
-#endif // !defined(ASIO_WINDOWS_RUNTIME)
-
-#endif // ASIO_DETAIL_SELECT_INTERRUPTER_HPP
diff --git a/lib/asio/detail/select_reactor.hpp b/lib/asio/detail/select_reactor.hpp
deleted file mode 100644
index 0996549..0000000
--- a/lib/asio/detail/select_reactor.hpp
+++ /dev/null
@@ -1,238 +0,0 @@
-//
-// detail/select_reactor.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_SELECT_REACTOR_HPP
-#define ASIO_DETAIL_SELECT_REACTOR_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-
-#if defined(ASIO_HAS_IOCP) \
-  || (!defined(ASIO_HAS_DEV_POLL) \
-      && !defined(ASIO_HAS_EPOLL) \
-      && !defined(ASIO_HAS_KQUEUE) \
-      && !defined(ASIO_WINDOWS_RUNTIME))
-
-#include <cstddef>
-#include "asio/detail/fd_set_adapter.hpp"
-#include "asio/detail/limits.hpp"
-#include "asio/detail/mutex.hpp"
-#include "asio/detail/op_queue.hpp"
-#include "asio/detail/reactor_op.hpp"
-#include "asio/detail/reactor_op_queue.hpp"
-#include "asio/detail/select_interrupter.hpp"
-#include "asio/detail/socket_types.hpp"
-#include "asio/detail/timer_queue_base.hpp"
-#include "asio/detail/timer_queue_set.hpp"
-#include "asio/detail/wait_op.hpp"
-#include "asio/execution_context.hpp"
-
-#if defined(ASIO_HAS_IOCP)
-# include "asio/detail/thread.hpp"
-#endif // defined(ASIO_HAS_IOCP)
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-class select_reactor
-  : public execution_context_service_base<select_reactor>
-{
-public:
-#if defined(ASIO_WINDOWS) || defined(__CYGWIN__)
-  enum op_types { read_op = 0, write_op = 1, except_op = 2,
-    max_select_ops = 3, connect_op = 3, max_ops = 4 };
-#else // defined(ASIO_WINDOWS) || defined(__CYGWIN__)
-  enum op_types { read_op = 0, write_op = 1, except_op = 2,
-    max_select_ops = 3, connect_op = 1, max_ops = 3 };
-#endif // defined(ASIO_WINDOWS) || defined(__CYGWIN__)
-
-  // Per-descriptor data.
-  struct per_descriptor_data
-  {
-  };
-
-  // Constructor.
-  ASIO_DECL select_reactor(asio::execution_context& ctx);
-
-  // Destructor.
-  ASIO_DECL ~select_reactor();
-
-  // Destroy all user-defined handler objects owned by the service.
-  ASIO_DECL void shutdown();
-
-  // Recreate internal descriptors following a fork.
-  ASIO_DECL void notify_fork(
-      asio::execution_context::fork_event fork_ev);
-
-  // Initialise the task, but only if the reactor is not in its own thread.
-  ASIO_DECL void init_task();
-
-  // Register a socket with the reactor. Returns 0 on success, system error
-  // code on failure.
-  ASIO_DECL int register_descriptor(socket_type, per_descriptor_data&);
-
-  // Register a descriptor with an associated single operation. Returns 0 on
-  // success, system error code on failure.
-  ASIO_DECL int register_internal_descriptor(
-      int op_type, socket_type descriptor,
-      per_descriptor_data& descriptor_data, reactor_op* op);
-
-  // Post a reactor operation for immediate completion.
-  void post_immediate_completion(reactor_op* op, bool is_continuation)
-  {
-    scheduler_.post_immediate_completion(op, is_continuation);
-  }
-
-  // Start a new operation. The reactor operation will be performed when the
-  // given descriptor is flagged as ready, or an error has occurred.
-  ASIO_DECL void start_op(int op_type, socket_type descriptor,
-      per_descriptor_data&, reactor_op* op, bool is_continuation, bool);
-
-  // Cancel all operations associated with the given descriptor. The
-  // handlers associated with the descriptor will be invoked with the
-  // operation_aborted error.
-  ASIO_DECL void cancel_ops(socket_type descriptor, per_descriptor_data&);
-
-  // Cancel any operations that are running against the descriptor and remove
-  // its registration from the reactor. The reactor resources associated with
-  // the descriptor must be released by calling cleanup_descriptor_data.
-  ASIO_DECL void deregister_descriptor(socket_type descriptor,
-      per_descriptor_data&, bool closing);
-
-  // Remove the descriptor's registration from the reactor. The reactor
-  // resources associated with the descriptor must be released by calling
-  // cleanup_descriptor_data.
-  ASIO_DECL void deregister_internal_descriptor(
-      socket_type descriptor, per_descriptor_data&);
-
-  // Perform any post-deregistration cleanup tasks associated with the
-  // descriptor data.
-  ASIO_DECL void cleanup_descriptor_data(per_descriptor_data&);
-
-  // Move descriptor registration from one descriptor_data object to another.
-  ASIO_DECL void move_descriptor(socket_type descriptor,
-      per_descriptor_data& target_descriptor_data,
-      per_descriptor_data& source_descriptor_data);
-
-  // Add a new timer queue to the reactor.
-  template <typename Time_Traits>
-  void add_timer_queue(timer_queue<Time_Traits>& queue);
-
-  // Remove a timer queue from the reactor.
-  template <typename Time_Traits>
-  void remove_timer_queue(timer_queue<Time_Traits>& queue);
-
-  // Schedule a new operation in the given timer queue to expire at the
-  // specified absolute time.
-  template <typename Time_Traits>
-  void schedule_timer(timer_queue<Time_Traits>& queue,
-      const typename Time_Traits::time_type& time,
-      typename timer_queue<Time_Traits>::per_timer_data& timer, wait_op* op);
-
-  // Cancel the timer operations associated with the given token. Returns the
-  // number of operations that have been posted or dispatched.
-  template <typename Time_Traits>
-  std::size_t cancel_timer(timer_queue<Time_Traits>& queue,
-      typename timer_queue<Time_Traits>::per_timer_data& timer,
-      std::size_t max_cancelled = (std::numeric_limits<std::size_t>::max)());
-
-  // Move the timer operations associated with the given timer.
-  template <typename Time_Traits>
-  void move_timer(timer_queue<Time_Traits>& queue,
-      typename timer_queue<Time_Traits>::per_timer_data& target,
-      typename timer_queue<Time_Traits>::per_timer_data& source);
-
-  // Run select once until interrupted or events are ready to be dispatched.
-  ASIO_DECL void run(long usec, op_queue<operation>& ops);
-
-  // Interrupt the select loop.
-  ASIO_DECL void interrupt();
-
-private:
-#if defined(ASIO_HAS_IOCP)
-  // Run the select loop in the thread.
-  ASIO_DECL void run_thread();
-#endif // defined(ASIO_HAS_IOCP)
-
-  // Helper function to add a new timer queue.
-  ASIO_DECL void do_add_timer_queue(timer_queue_base& queue);
-
-  // Helper function to remove a timer queue.
-  ASIO_DECL void do_remove_timer_queue(timer_queue_base& queue);
-
-  // Get the timeout value for the select call.
-  ASIO_DECL timeval* get_timeout(long usec, timeval& tv);
-
-  // Cancel all operations associated with the given descriptor. This function
-  // does not acquire the select_reactor's mutex.
-  ASIO_DECL void cancel_ops_unlocked(socket_type descriptor,
-      const asio::error_code& ec);
-
-  // The scheduler implementation used to post completions.
-# if defined(ASIO_HAS_IOCP)
-  typedef class win_iocp_io_context scheduler_type;
-# else // defined(ASIO_HAS_IOCP)
-  typedef class scheduler scheduler_type;
-# endif // defined(ASIO_HAS_IOCP)
-  scheduler_type& scheduler_;
-
-  // Mutex to protect access to internal data.
-  asio::detail::mutex mutex_;
-
-  // The interrupter is used to break a blocking select call.
-  select_interrupter interrupter_;
-
-  // The queues of read, write and except operations.
-  reactor_op_queue<socket_type> op_queue_[max_ops];
-
-  // The file descriptor sets to be passed to the select system call.
-  fd_set_adapter fd_sets_[max_select_ops];
-
-  // The timer queues.
-  timer_queue_set timer_queues_;
-
-#if defined(ASIO_HAS_IOCP)
-  // Helper class to run the reactor loop in a thread.
-  class thread_function;
-  friend class thread_function;
-
-  // Does the reactor loop thread need to stop.
-  bool stop_thread_;
-
-  // The thread that is running the reactor loop.
-  asio::detail::thread* thread_;
-#endif // defined(ASIO_HAS_IOCP)
-
-  // Whether the service has been shut down.
-  bool shutdown_;
-};
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#include "asio/detail/impl/select_reactor.hpp"
-#if defined(ASIO_HEADER_ONLY)
-# include "asio/detail/impl/select_reactor.ipp"
-#endif // defined(ASIO_HEADER_ONLY)
-
-#endif // defined(ASIO_HAS_IOCP)
-       //   || (!defined(ASIO_HAS_DEV_POLL)
-       //       && !defined(ASIO_HAS_EPOLL)
-       //       && !defined(ASIO_HAS_KQUEUE)
-       //       && !defined(ASIO_WINDOWS_RUNTIME))
-
-#endif // ASIO_DETAIL_SELECT_REACTOR_HPP
diff --git a/lib/asio/detail/service_registry.hpp b/lib/asio/detail/service_registry.hpp
deleted file mode 100644
index cda6307..0000000
--- a/lib/asio/detail/service_registry.hpp
+++ /dev/null
@@ -1,164 +0,0 @@
-//
-// detail/service_registry.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_SERVICE_REGISTRY_HPP
-#define ASIO_DETAIL_SERVICE_REGISTRY_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-#include <typeinfo>
-#include "asio/detail/mutex.hpp"
-#include "asio/detail/noncopyable.hpp"
-#include "asio/detail/type_traits.hpp"
-#include "asio/execution_context.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-
-class io_context;
-
-namespace detail {
-
-template <typename T>
-class typeid_wrapper {};
-
-class service_registry
-  : private noncopyable
-{
-public:
-  // Constructor.
-  ASIO_DECL service_registry(execution_context& owner);
-
-  // Destructor.
-  ASIO_DECL ~service_registry();
-
-  // Shutdown all services.
-  ASIO_DECL void shutdown_services();
-
-  // Destroy all services.
-  ASIO_DECL void destroy_services();
-
-  // Notify all services of a fork event.
-  ASIO_DECL void notify_fork(execution_context::fork_event fork_ev);
-
-  // Get the service object corresponding to the specified service type. Will
-  // create a new service object automatically if no such object already
-  // exists. Ownership of the service object is not transferred to the caller.
-  template <typename Service>
-  Service& use_service();
-
-  // Get the service object corresponding to the specified service type. Will
-  // create a new service object automatically if no such object already
-  // exists. Ownership of the service object is not transferred to the caller.
-  // This overload is used for backwards compatibility with services that
-  // inherit from io_context::service.
-  template <typename Service>
-  Service& use_service(io_context& owner);
-
-  // Add a service object. Throws on error, in which case ownership of the
-  // object is retained by the caller.
-  template <typename Service>
-  void add_service(Service* new_service);
-
-  // Check whether a service object of the specified type already exists.
-  template <typename Service>
-  bool has_service() const;
-
-private:
-  // Initalise a service's key when the key_type typedef is not available.
-  template <typename Service>
-  static void init_key(execution_context::service::key& key, ...);
-
-#if !defined(ASIO_NO_TYPEID)
-  // Initalise a service's key when the key_type typedef is available.
-  template <typename Service>
-  static void init_key(execution_context::service::key& key,
-      typename enable_if<
-        is_base_of<typename Service::key_type, Service>::value>::type*);
-#endif // !defined(ASIO_NO_TYPEID)
-
-  // Initialise a service's key based on its id.
-  ASIO_DECL static void init_key_from_id(
-      execution_context::service::key& key,
-      const execution_context::id& id);
-
-#if !defined(ASIO_NO_TYPEID)
-  // Initialise a service's key based on its id.
-  template <typename Service>
-  static void init_key_from_id(execution_context::service::key& key,
-      const service_id<Service>& /*id*/);
-#endif // !defined(ASIO_NO_TYPEID)
-
-  // Check if a service matches the given id.
-  ASIO_DECL static bool keys_match(
-      const execution_context::service::key& key1,
-      const execution_context::service::key& key2);
-
-  // The type of a factory function used for creating a service instance.
-  typedef execution_context::service*(*factory_type)(void*);
-
-  // Factory function for creating a service instance.
-  template <typename Service, typename Owner>
-  static execution_context::service* create(void* owner);
-
-  // Destroy a service instance.
-  ASIO_DECL static void destroy(execution_context::service* service);
-
-  // Helper class to manage service pointers.
-  struct auto_service_ptr;
-  friend struct auto_service_ptr;
-  struct auto_service_ptr
-  {
-    execution_context::service* ptr_;
-    ~auto_service_ptr() { destroy(ptr_); }
-  };
-
-  // Get the service object corresponding to the specified service key. Will
-  // create a new service object automatically if no such object already
-  // exists. Ownership of the service object is not transferred to the caller.
-  ASIO_DECL execution_context::service* do_use_service(
-      const execution_context::service::key& key,
-      factory_type factory, void* owner);
-
-  // Add a service object. Throws on error, in which case ownership of the
-  // object is retained by the caller.
-  ASIO_DECL void do_add_service(
-      const execution_context::service::key& key,
-      execution_context::service* new_service);
-
-  // Check whether a service object with the specified key already exists.
-  ASIO_DECL bool do_has_service(
-      const execution_context::service::key& key) const;
-
-  // Mutex to protect access to internal data.
-  mutable asio::detail::mutex mutex_;
-
-  // The owner of this service registry and the services it contains.
-  execution_context& owner_;
-
-  // The first service in the list of contained services.
-  execution_context::service* first_service_;
-};
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#include "asio/detail/impl/service_registry.hpp"
-#if defined(ASIO_HEADER_ONLY)
-# include "asio/detail/impl/service_registry.ipp"
-#endif // defined(ASIO_HEADER_ONLY)
-
-#endif // ASIO_DETAIL_SERVICE_REGISTRY_HPP
diff --git a/lib/asio/detail/signal_blocker.hpp b/lib/asio/detail/signal_blocker.hpp
deleted file mode 100644
index b684295..0000000
--- a/lib/asio/detail/signal_blocker.hpp
+++ /dev/null
@@ -1,44 +0,0 @@
-//
-// detail/signal_blocker.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_SIGNAL_BLOCKER_HPP
-#define ASIO_DETAIL_SIGNAL_BLOCKER_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-
-#if !defined(ASIO_HAS_THREADS) || defined(ASIO_WINDOWS) \
-  || defined(ASIO_WINDOWS_RUNTIME) \
-  || defined(__CYGWIN__) || defined(__SYMBIAN32__)
-# include "asio/detail/null_signal_blocker.hpp"
-#elif defined(ASIO_HAS_PTHREADS)
-# include "asio/detail/posix_signal_blocker.hpp"
-#else
-# error Only Windows and POSIX are supported!
-#endif
-
-namespace asio {
-namespace detail {
-
-#if !defined(ASIO_HAS_THREADS) || defined(ASIO_WINDOWS) \
-  || defined(ASIO_WINDOWS_RUNTIME) \
-  || defined(__CYGWIN__) || defined(__SYMBIAN32__)
-typedef null_signal_blocker signal_blocker;
-#elif defined(ASIO_HAS_PTHREADS)
-typedef posix_signal_blocker signal_blocker;
-#endif
-
-} // namespace detail
-} // namespace asio
-
-#endif // ASIO_DETAIL_SIGNAL_BLOCKER_HPP
diff --git a/lib/asio/detail/signal_handler.hpp b/lib/asio/detail/signal_handler.hpp
deleted file mode 100644
index d1c9910..0000000
--- a/lib/asio/detail/signal_handler.hpp
+++ /dev/null
@@ -1,86 +0,0 @@
-//
-// detail/signal_handler.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_SIGNAL_HANDLER_HPP
-#define ASIO_DETAIL_SIGNAL_HANDLER_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-#include "asio/detail/bind_handler.hpp"
-#include "asio/detail/fenced_block.hpp"
-#include "asio/detail/handler_alloc_helpers.hpp"
-#include "asio/detail/handler_invoke_helpers.hpp"
-#include "asio/detail/handler_work.hpp"
-#include "asio/detail/memory.hpp"
-#include "asio/detail/signal_op.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-template <typename Handler>
-class signal_handler : public signal_op
-{
-public:
-  ASIO_DEFINE_HANDLER_PTR(signal_handler);
-
-  signal_handler(Handler& h)
-    : signal_op(&signal_handler::do_complete),
-      handler_(ASIO_MOVE_CAST(Handler)(h))
-  {
-    handler_work<Handler>::start(handler_);
-  }
-
-  static void do_complete(void* owner, operation* base,
-      const asio::error_code& /*ec*/,
-      std::size_t /*bytes_transferred*/)
-  {
-    // Take ownership of the handler object.
-    signal_handler* h(static_cast<signal_handler*>(base));
-    ptr p = { asio::detail::addressof(h->handler_), h, h };
-    handler_work<Handler> w(h->handler_);
-
-    ASIO_HANDLER_COMPLETION((*h));
-
-    // Make a copy of the handler so that the memory can be deallocated before
-    // the upcall is made. Even if we're not about to make an upcall, a
-    // sub-object of the handler may be the true owner of the memory associated
-    // with the handler. Consequently, a local copy of the handler is required
-    // to ensure that any owning sub-object remains valid until after we have
-    // deallocated the memory here.
-    detail::binder2<Handler, asio::error_code, int>
-      handler(h->handler_, h->ec_, h->signal_number_);
-    p.h = asio::detail::addressof(handler.handler_);
-    p.reset();
-
-    // Make the upcall if required.
-    if (owner)
-    {
-      fenced_block b(fenced_block::half);
-      ASIO_HANDLER_INVOCATION_BEGIN((handler.arg1_, handler.arg2_));
-      w.complete(handler, handler.handler_);
-      ASIO_HANDLER_INVOCATION_END;
-    }
-  }
-
-private:
-  Handler handler_;
-};
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // ASIO_DETAIL_SIGNAL_HANDLER_HPP
diff --git a/lib/asio/detail/signal_init.hpp b/lib/asio/detail/signal_init.hpp
deleted file mode 100644
index 814ff51..0000000
--- a/lib/asio/detail/signal_init.hpp
+++ /dev/null
@@ -1,47 +0,0 @@
-//
-// detail/signal_init.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_SIGNAL_INIT_HPP
-#define ASIO_DETAIL_SIGNAL_INIT_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-
-#if !defined(ASIO_WINDOWS) && !defined(__CYGWIN__)
-
-#include <csignal>
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-template <int Signal = SIGPIPE>
-class signal_init
-{
-public:
-  // Constructor.
-  signal_init()
-  {
-    std::signal(Signal, SIG_IGN);
-  }
-};
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // !defined(ASIO_WINDOWS) && !defined(__CYGWIN__)
-
-#endif // ASIO_DETAIL_SIGNAL_INIT_HPP
diff --git a/lib/asio/detail/signal_op.hpp b/lib/asio/detail/signal_op.hpp
deleted file mode 100644
index c4e364c..0000000
--- a/lib/asio/detail/signal_op.hpp
+++ /dev/null
@@ -1,49 +0,0 @@
-//
-// detail/signal_op.hpp
-// ~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_SIGNAL_OP_HPP
-#define ASIO_DETAIL_SIGNAL_OP_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-#include "asio/detail/operation.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-class signal_op
-  : public operation
-{
-public:
-  // The error code to be passed to the completion handler.
-  asio::error_code ec_;
-
-  // The signal number to be passed to the completion handler.
-  int signal_number_;
-
-protected:
-  signal_op(func_type func)
-    : operation(func),
-      signal_number_(0)
-  {
-  }
-};
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // ASIO_DETAIL_SIGNAL_OP_HPP
diff --git a/lib/asio/detail/signal_set_service.hpp b/lib/asio/detail/signal_set_service.hpp
deleted file mode 100644
index a18ab70..0000000
--- a/lib/asio/detail/signal_set_service.hpp
+++ /dev/null
@@ -1,217 +0,0 @@
-//
-// detail/signal_set_service.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_SIGNAL_SET_SERVICE_HPP
-#define ASIO_DETAIL_SIGNAL_SET_SERVICE_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-
-#include <cstddef>
-#include <signal.h>
-#include "asio/error.hpp"
-#include "asio/io_context.hpp"
-#include "asio/detail/handler_alloc_helpers.hpp"
-#include "asio/detail/memory.hpp"
-#include "asio/detail/op_queue.hpp"
-#include "asio/detail/signal_handler.hpp"
-#include "asio/detail/signal_op.hpp"
-#include "asio/detail/socket_types.hpp"
-
-#if !defined(ASIO_WINDOWS) && !defined(__CYGWIN__)
-# include "asio/detail/reactor.hpp"
-#endif // !defined(ASIO_WINDOWS) && !defined(__CYGWIN__)
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-#if defined(NSIG) && (NSIG > 0)
-enum { max_signal_number = NSIG };
-#else
-enum { max_signal_number = 128 };
-#endif
-
-extern ASIO_DECL struct signal_state* get_signal_state();
-
-extern "C" ASIO_DECL void asio_signal_handler(int signal_number);
-
-class signal_set_service :
-  public service_base<signal_set_service>
-{
-public:
-  // Type used for tracking an individual signal registration.
-  class registration
-  {
-  public:
-    // Default constructor.
-    registration()
-      : signal_number_(0),
-        queue_(0),
-        undelivered_(0),
-        next_in_table_(0),
-        prev_in_table_(0),
-        next_in_set_(0)
-    {
-    }
-
-  private:
-    // Only this service will have access to the internal values.
-    friend class signal_set_service;
-
-    // The signal number that is registered.
-    int signal_number_;
-
-    // The waiting signal handlers.
-    op_queue<signal_op>* queue_;
-
-    // The number of undelivered signals.
-    std::size_t undelivered_;
-
-    // Pointers to adjacent registrations in the registrations_ table.
-    registration* next_in_table_;
-    registration* prev_in_table_;
-
-    // Link to next registration in the signal set.
-    registration* next_in_set_;
-  };
-
-  // The implementation type of the signal_set.
-  class implementation_type
-  {
-  public:
-    // Default constructor.
-    implementation_type()
-      : signals_(0)
-    {
-    }
-
-  private:
-    // Only this service will have access to the internal values.
-    friend class signal_set_service;
-
-    // The pending signal handlers.
-    op_queue<signal_op> queue_;
-
-    // Linked list of registered signals.
-    registration* signals_;
-  };
-
-  // Constructor.
-  ASIO_DECL signal_set_service(asio::io_context& io_context);
-
-  // Destructor.
-  ASIO_DECL ~signal_set_service();
-
-  // Destroy all user-defined handler objects owned by the service.
-  ASIO_DECL void shutdown();
-
-  // Perform fork-related housekeeping.
-  ASIO_DECL void notify_fork(
-      asio::io_context::fork_event fork_ev);
-
-  // Construct a new signal_set implementation.
-  ASIO_DECL void construct(implementation_type& impl);
-
-  // Destroy a signal_set implementation.
-  ASIO_DECL void destroy(implementation_type& impl);
-
-  // Add a signal to a signal_set.
-  ASIO_DECL asio::error_code add(implementation_type& impl,
-      int signal_number, asio::error_code& ec);
-
-  // Remove a signal to a signal_set.
-  ASIO_DECL asio::error_code remove(implementation_type& impl,
-      int signal_number, asio::error_code& ec);
-
-  // Remove all signals from a signal_set.
-  ASIO_DECL asio::error_code clear(implementation_type& impl,
-      asio::error_code& ec);
-
-  // Cancel all operations associated with the signal set.
-  ASIO_DECL asio::error_code cancel(implementation_type& impl,
-      asio::error_code& ec);
-
-  // Start an asynchronous operation to wait for a signal to be delivered.
-  template <typename Handler>
-  void async_wait(implementation_type& impl, Handler& handler)
-  {
-    // Allocate and construct an operation to wrap the handler.
-    typedef signal_handler<Handler> op;
-    typename op::ptr p = { asio::detail::addressof(handler),
-      op::ptr::allocate(handler), 0 };
-    p.p = new (p.v) op(handler);
-
-    ASIO_HANDLER_CREATION((io_context_.context(),
-          *p.p, "signal_set", &impl, 0, "async_wait"));
-
-    start_wait_op(impl, p.p);
-    p.v = p.p = 0;
-  }
-
-  // Deliver notification that a particular signal occurred.
-  ASIO_DECL static void deliver_signal(int signal_number);
-
-private:
-  // Helper function to add a service to the global signal state.
-  ASIO_DECL static void add_service(signal_set_service* service);
-
-  // Helper function to remove a service from the global signal state.
-  ASIO_DECL static void remove_service(signal_set_service* service);
-
-  // Helper function to create the pipe descriptors.
-  ASIO_DECL static void open_descriptors();
-
-  // Helper function to close the pipe descriptors.
-  ASIO_DECL static void close_descriptors();
-
-  // Helper function to start a wait operation.
-  ASIO_DECL void start_wait_op(implementation_type& impl, signal_op* op);
-
-  // The io_context instance used for dispatching handlers.
-  io_context_impl& io_context_;
-
-#if !defined(ASIO_WINDOWS) \
-  && !defined(ASIO_WINDOWS_RUNTIME) \
-  && !defined(__CYGWIN__)
-  // The type used for registering for pipe reactor notifications.
-  class pipe_read_op;
-
-  // The reactor used for waiting for pipe readiness.
-  reactor& reactor_;
-
-  // The per-descriptor reactor data used for the pipe.
-  reactor::per_descriptor_data reactor_data_;
-#endif // !defined(ASIO_WINDOWS)
-       //   && !defined(ASIO_WINDOWS_RUNTIME)
-       //   && !defined(__CYGWIN__)
-
-  // A mapping from signal number to the registered signal sets.
-  registration* registrations_[max_signal_number];
-
-  // Pointers to adjacent services in linked list.
-  signal_set_service* next_;
-  signal_set_service* prev_;
-};
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#if defined(ASIO_HEADER_ONLY)
-# include "asio/detail/impl/signal_set_service.ipp"
-#endif // defined(ASIO_HEADER_ONLY)
-
-#endif // ASIO_DETAIL_SIGNAL_SET_SERVICE_HPP
diff --git a/lib/asio/detail/socket_holder.hpp b/lib/asio/detail/socket_holder.hpp
deleted file mode 100644
index 99b081f..0000000
--- a/lib/asio/detail/socket_holder.hpp
+++ /dev/null
@@ -1,98 +0,0 @@
-//
-// detail/socket_holder.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_SOCKET_HOLDER_HPP
-#define ASIO_DETAIL_SOCKET_HOLDER_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-#include "asio/detail/noncopyable.hpp"
-#include "asio/detail/socket_ops.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-// Implement the resource acquisition is initialisation idiom for sockets.
-class socket_holder
-  : private noncopyable
-{
-public:
-  // Construct as an uninitialised socket.
-  socket_holder()
-    : socket_(invalid_socket)
-  {
-  }
-
-  // Construct to take ownership of the specified socket.
-  explicit socket_holder(socket_type s)
-    : socket_(s)
-  {
-  }
-
-  // Destructor.
-  ~socket_holder()
-  {
-    if (socket_ != invalid_socket)
-    {
-      asio::error_code ec;
-      socket_ops::state_type state = 0;
-      socket_ops::close(socket_, state, true, ec);
-    }
-  }
-
-  // Get the underlying socket.
-  socket_type get() const
-  {
-    return socket_;
-  }
-
-  // Reset to an uninitialised socket.
-  void reset()
-  {
-    if (socket_ != invalid_socket)
-    {
-      asio::error_code ec;
-      socket_ops::state_type state = 0;
-      socket_ops::close(socket_, state, true, ec);
-      socket_ = invalid_socket;
-    }
-  }
-
-  // Reset to take ownership of the specified socket.
-  void reset(socket_type s)
-  {
-    reset();
-    socket_ = s;
-  }
-
-  // Release ownership of the socket.
-  socket_type release()
-  {
-    socket_type tmp = socket_;
-    socket_ = invalid_socket;
-    return tmp;
-  }
-
-private:
-  // The underlying socket.
-  socket_type socket_;
-};
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // ASIO_DETAIL_SOCKET_HOLDER_HPP
diff --git a/lib/asio/detail/socket_ops.hpp b/lib/asio/detail/socket_ops.hpp
deleted file mode 100644
index 815b0d1..0000000
--- a/lib/asio/detail/socket_ops.hpp
+++ /dev/null
@@ -1,337 +0,0 @@
-//
-// detail/socket_ops.hpp
-// ~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_SOCKET_OPS_HPP
-#define ASIO_DETAIL_SOCKET_OPS_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-
-#include "asio/error_code.hpp"
-#include "asio/detail/memory.hpp"
-#include "asio/detail/socket_types.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-namespace socket_ops {
-
-// Socket state bits.
-enum
-{
-  // The user wants a non-blocking socket.
-  user_set_non_blocking = 1,
-
-  // The socket has been set non-blocking.
-  internal_non_blocking = 2,
-
-  // Helper "state" used to determine whether the socket is non-blocking.
-  non_blocking = user_set_non_blocking | internal_non_blocking,
-
-  // User wants connection_aborted errors, which are disabled by default.
-  enable_connection_aborted = 4,
-
-  // The user set the linger option. Needs to be checked when closing.
-  user_set_linger = 8,
-
-  // The socket is stream-oriented.
-  stream_oriented = 16,
-
-  // The socket is datagram-oriented.
-  datagram_oriented = 32,
-
-  // The socket may have been dup()-ed.
-  possible_dup = 64
-};
-
-typedef unsigned char state_type;
-
-struct noop_deleter { void operator()(void*) {} };
-typedef shared_ptr<void> shared_cancel_token_type;
-typedef weak_ptr<void> weak_cancel_token_type;
-
-#if !defined(ASIO_WINDOWS_RUNTIME)
-
-ASIO_DECL socket_type accept(socket_type s, socket_addr_type* addr,
-    std::size_t* addrlen, asio::error_code& ec);
-
-ASIO_DECL socket_type sync_accept(socket_type s,
-    state_type state, socket_addr_type* addr,
-    std::size_t* addrlen, asio::error_code& ec);
-
-#if defined(ASIO_HAS_IOCP)
-
-ASIO_DECL void complete_iocp_accept(socket_type s,
-    void* output_buffer, DWORD address_length,
-    socket_addr_type* addr, std::size_t* addrlen,
-    socket_type new_socket, asio::error_code& ec);
-
-#else // defined(ASIO_HAS_IOCP)
-
-ASIO_DECL bool non_blocking_accept(socket_type s,
-    state_type state, socket_addr_type* addr, std::size_t* addrlen,
-    asio::error_code& ec, socket_type& new_socket);
-
-#endif // defined(ASIO_HAS_IOCP)
-
-ASIO_DECL int bind(socket_type s, const socket_addr_type* addr,
-    std::size_t addrlen, asio::error_code& ec);
-
-ASIO_DECL int close(socket_type s, state_type& state,
-    bool destruction, asio::error_code& ec);
-
-ASIO_DECL bool set_user_non_blocking(socket_type s,
-    state_type& state, bool value, asio::error_code& ec);
-
-ASIO_DECL bool set_internal_non_blocking(socket_type s,
-    state_type& state, bool value, asio::error_code& ec);
-
-ASIO_DECL int shutdown(socket_type s,
-    int what, asio::error_code& ec);
-
-ASIO_DECL int connect(socket_type s, const socket_addr_type* addr,
-    std::size_t addrlen, asio::error_code& ec);
-
-ASIO_DECL void sync_connect(socket_type s, const socket_addr_type* addr,
-    std::size_t addrlen, asio::error_code& ec);
-
-#if defined(ASIO_HAS_IOCP)
-
-ASIO_DECL void complete_iocp_connect(socket_type s,
-    asio::error_code& ec);
-
-#endif // defined(ASIO_HAS_IOCP)
-
-ASIO_DECL bool non_blocking_connect(socket_type s,
-    asio::error_code& ec);
-
-ASIO_DECL int socketpair(int af, int type, int protocol,
-    socket_type sv[2], asio::error_code& ec);
-
-ASIO_DECL bool sockatmark(socket_type s, asio::error_code& ec);
-
-ASIO_DECL size_t available(socket_type s, asio::error_code& ec);
-
-ASIO_DECL int listen(socket_type s,
-    int backlog, asio::error_code& ec);
-
-#if defined(ASIO_WINDOWS) || defined(__CYGWIN__)
-typedef WSABUF buf;
-#else // defined(ASIO_WINDOWS) || defined(__CYGWIN__)
-typedef iovec buf;
-#endif // defined(ASIO_WINDOWS) || defined(__CYGWIN__)
-
-ASIO_DECL void init_buf(buf& b, void* data, size_t size);
-
-ASIO_DECL void init_buf(buf& b, const void* data, size_t size);
-
-ASIO_DECL signed_size_type recv(socket_type s, buf* bufs,
-    size_t count, int flags, asio::error_code& ec);
-
-ASIO_DECL size_t sync_recv(socket_type s, state_type state, buf* bufs,
-    size_t count, int flags, bool all_empty, asio::error_code& ec);
-
-#if defined(ASIO_HAS_IOCP)
-
-ASIO_DECL void complete_iocp_recv(state_type state,
-    const weak_cancel_token_type& cancel_token, bool all_empty,
-    asio::error_code& ec, size_t bytes_transferred);
-
-#else // defined(ASIO_HAS_IOCP)
-
-ASIO_DECL bool non_blocking_recv(socket_type s,
-    buf* bufs, size_t count, int flags, bool is_stream,
-    asio::error_code& ec, size_t& bytes_transferred);
-
-#endif // defined(ASIO_HAS_IOCP)
-
-ASIO_DECL signed_size_type recvfrom(socket_type s, buf* bufs,
-    size_t count, int flags, socket_addr_type* addr,
-    std::size_t* addrlen, asio::error_code& ec);
-
-ASIO_DECL size_t sync_recvfrom(socket_type s, state_type state,
-    buf* bufs, size_t count, int flags, socket_addr_type* addr,
-    std::size_t* addrlen, asio::error_code& ec);
-
-#if defined(ASIO_HAS_IOCP)
-
-ASIO_DECL void complete_iocp_recvfrom(
-    const weak_cancel_token_type& cancel_token,
-    asio::error_code& ec);
-
-#else // defined(ASIO_HAS_IOCP)
-
-ASIO_DECL bool non_blocking_recvfrom(socket_type s,
-    buf* bufs, size_t count, int flags,
-    socket_addr_type* addr, std::size_t* addrlen,
-    asio::error_code& ec, size_t& bytes_transferred);
-
-#endif // defined(ASIO_HAS_IOCP)
-
-ASIO_DECL signed_size_type recvmsg(socket_type s, buf* bufs,
-    size_t count, int in_flags, int& out_flags,
-    asio::error_code& ec);
-
-ASIO_DECL size_t sync_recvmsg(socket_type s, state_type state,
-    buf* bufs, size_t count, int in_flags, int& out_flags,
-    asio::error_code& ec);
-
-#if defined(ASIO_HAS_IOCP)
-
-ASIO_DECL void complete_iocp_recvmsg(
-    const weak_cancel_token_type& cancel_token,
-    asio::error_code& ec);
-
-#else // defined(ASIO_HAS_IOCP)
-
-ASIO_DECL bool non_blocking_recvmsg(socket_type s,
-    buf* bufs, size_t count, int in_flags, int& out_flags,
-    asio::error_code& ec, size_t& bytes_transferred);
-
-#endif // defined(ASIO_HAS_IOCP)
-
-ASIO_DECL signed_size_type send(socket_type s, const buf* bufs,
-    size_t count, int flags, asio::error_code& ec);
-
-ASIO_DECL size_t sync_send(socket_type s, state_type state,
-    const buf* bufs, size_t count, int flags,
-    bool all_empty, asio::error_code& ec);
-
-#if defined(ASIO_HAS_IOCP)
-
-ASIO_DECL void complete_iocp_send(
-    const weak_cancel_token_type& cancel_token,
-    asio::error_code& ec);
-
-#else // defined(ASIO_HAS_IOCP)
-
-ASIO_DECL bool non_blocking_send(socket_type s,
-    const buf* bufs, size_t count, int flags,
-    asio::error_code& ec, size_t& bytes_transferred);
-
-#endif // defined(ASIO_HAS_IOCP)
-
-ASIO_DECL signed_size_type sendto(socket_type s, const buf* bufs,
-    size_t count, int flags, const socket_addr_type* addr,
-    std::size_t addrlen, asio::error_code& ec);
-
-ASIO_DECL size_t sync_sendto(socket_type s, state_type state,
-    const buf* bufs, size_t count, int flags, const socket_addr_type* addr,
-    std::size_t addrlen, asio::error_code& ec);
-
-#if !defined(ASIO_HAS_IOCP)
-
-ASIO_DECL bool non_blocking_sendto(socket_type s,
-    const buf* bufs, size_t count, int flags,
-    const socket_addr_type* addr, std::size_t addrlen,
-    asio::error_code& ec, size_t& bytes_transferred);
-
-#endif // !defined(ASIO_HAS_IOCP)
-
-ASIO_DECL socket_type socket(int af, int type, int protocol,
-    asio::error_code& ec);
-
-ASIO_DECL int setsockopt(socket_type s, state_type& state,
-    int level, int optname, const void* optval,
-    std::size_t optlen, asio::error_code& ec);
-
-ASIO_DECL int getsockopt(socket_type s, state_type state,
-    int level, int optname, void* optval,
-    size_t* optlen, asio::error_code& ec);
-
-ASIO_DECL int getpeername(socket_type s, socket_addr_type* addr,
-    std::size_t* addrlen, bool cached, asio::error_code& ec);
-
-ASIO_DECL int getsockname(socket_type s, socket_addr_type* addr,
-    std::size_t* addrlen, asio::error_code& ec);
-
-ASIO_DECL int ioctl(socket_type s, state_type& state,
-    int cmd, ioctl_arg_type* arg, asio::error_code& ec);
-
-ASIO_DECL int select(int nfds, fd_set* readfds, fd_set* writefds,
-    fd_set* exceptfds, timeval* timeout, asio::error_code& ec);
-
-ASIO_DECL int poll_read(socket_type s,
-    state_type state, int msec, asio::error_code& ec);
-
-ASIO_DECL int poll_write(socket_type s,
-    state_type state, int msec, asio::error_code& ec);
-
-ASIO_DECL int poll_error(socket_type s,
-    state_type state, int msec, asio::error_code& ec);
-
-ASIO_DECL int poll_connect(socket_type s,
-    int msec, asio::error_code& ec);
-
-#endif // !defined(ASIO_WINDOWS_RUNTIME)
-
-ASIO_DECL const char* inet_ntop(int af, const void* src, char* dest,
-    size_t length, unsigned long scope_id, asio::error_code& ec);
-
-ASIO_DECL int inet_pton(int af, const char* src, void* dest,
-    unsigned long* scope_id, asio::error_code& ec);
-
-ASIO_DECL int gethostname(char* name,
-    int namelen, asio::error_code& ec);
-
-#if !defined(ASIO_WINDOWS_RUNTIME)
-
-ASIO_DECL asio::error_code getaddrinfo(const char* host,
-    const char* service, const addrinfo_type& hints,
-    addrinfo_type** result, asio::error_code& ec);
-
-ASIO_DECL asio::error_code background_getaddrinfo(
-    const weak_cancel_token_type& cancel_token, const char* host,
-    const char* service, const addrinfo_type& hints,
-    addrinfo_type** result, asio::error_code& ec);
-
-ASIO_DECL void freeaddrinfo(addrinfo_type* ai);
-
-ASIO_DECL asio::error_code getnameinfo(
-    const socket_addr_type* addr, std::size_t addrlen,
-    char* host, std::size_t hostlen, char* serv,
-    std::size_t servlen, int flags, asio::error_code& ec);
-
-ASIO_DECL asio::error_code sync_getnameinfo(
-    const socket_addr_type* addr, std::size_t addrlen,
-    char* host, std::size_t hostlen, char* serv,
-    std::size_t servlen, int sock_type, asio::error_code& ec);
-
-ASIO_DECL asio::error_code background_getnameinfo(
-    const weak_cancel_token_type& cancel_token,
-    const socket_addr_type* addr, std::size_t addrlen,
-    char* host, std::size_t hostlen, char* serv,
-    std::size_t servlen, int sock_type, asio::error_code& ec);
-
-#endif // !defined(ASIO_WINDOWS_RUNTIME)
-
-ASIO_DECL u_long_type network_to_host_long(u_long_type value);
-
-ASIO_DECL u_long_type host_to_network_long(u_long_type value);
-
-ASIO_DECL u_short_type network_to_host_short(u_short_type value);
-
-ASIO_DECL u_short_type host_to_network_short(u_short_type value);
-
-} // namespace socket_ops
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#if defined(ASIO_HEADER_ONLY)
-# include "asio/detail/impl/socket_ops.ipp"
-#endif // defined(ASIO_HEADER_ONLY)
-
-#endif // ASIO_DETAIL_SOCKET_OPS_HPP
diff --git a/lib/asio/detail/socket_option.hpp b/lib/asio/detail/socket_option.hpp
deleted file mode 100644
index 6852d56..0000000
--- a/lib/asio/detail/socket_option.hpp
+++ /dev/null
@@ -1,316 +0,0 @@
-//
-// detail/socket_option.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_SOCKET_OPTION_HPP
-#define ASIO_DETAIL_SOCKET_OPTION_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-#include <cstddef>
-#include <stdexcept>
-#include "asio/detail/socket_types.hpp"
-#include "asio/detail/throw_exception.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-namespace socket_option {
-
-// Helper template for implementing boolean-based options.
-template <int Level, int Name>
-class boolean
-{
-public:
-  // Default constructor.
-  boolean()
-    : value_(0)
-  {
-  }
-
-  // Construct with a specific option value.
-  explicit boolean(bool v)
-    : value_(v ? 1 : 0)
-  {
-  }
-
-  // Set the current value of the boolean.
-  boolean& operator=(bool v)
-  {
-    value_ = v ? 1 : 0;
-    return *this;
-  }
-
-  // Get the current value of the boolean.
-  bool value() const
-  {
-    return !!value_;
-  }
-
-  // Convert to bool.
-  operator bool() const
-  {
-    return !!value_;
-  }
-
-  // Test for false.
-  bool operator!() const
-  {
-    return !value_;
-  }
-
-  // Get the level of the socket option.
-  template <typename Protocol>
-  int level(const Protocol&) const
-  {
-    return Level;
-  }
-
-  // Get the name of the socket option.
-  template <typename Protocol>
-  int name(const Protocol&) const
-  {
-    return Name;
-  }
-
-  // Get the address of the boolean data.
-  template <typename Protocol>
-  int* data(const Protocol&)
-  {
-    return &value_;
-  }
-
-  // Get the address of the boolean data.
-  template <typename Protocol>
-  const int* data(const Protocol&) const
-  {
-    return &value_;
-  }
-
-  // Get the size of the boolean data.
-  template <typename Protocol>
-  std::size_t size(const Protocol&) const
-  {
-    return sizeof(value_);
-  }
-
-  // Set the size of the boolean data.
-  template <typename Protocol>
-  void resize(const Protocol&, std::size_t s)
-  {
-    // On some platforms (e.g. Windows Vista), the getsockopt function will
-    // return the size of a boolean socket option as one byte, even though a
-    // four byte integer was passed in.
-    switch (s)
-    {
-    case sizeof(char):
-      value_ = *reinterpret_cast<char*>(&value_) ? 1 : 0;
-      break;
-    case sizeof(value_):
-      break;
-    default:
-      {
-        std::length_error ex("boolean socket option resize");
-        asio::detail::throw_exception(ex);
-      }
-    }
-  }
-
-private:
-  int value_;
-};
-
-// Helper template for implementing integer options.
-template <int Level, int Name>
-class integer
-{
-public:
-  // Default constructor.
-  integer()
-    : value_(0)
-  {
-  }
-
-  // Construct with a specific option value.
-  explicit integer(int v)
-    : value_(v)
-  {
-  }
-
-  // Set the value of the int option.
-  integer& operator=(int v)
-  {
-    value_ = v;
-    return *this;
-  }
-
-  // Get the current value of the int option.
-  int value() const
-  {
-    return value_;
-  }
-
-  // Get the level of the socket option.
-  template <typename Protocol>
-  int level(const Protocol&) const
-  {
-    return Level;
-  }
-
-  // Get the name of the socket option.
-  template <typename Protocol>
-  int name(const Protocol&) const
-  {
-    return Name;
-  }
-
-  // Get the address of the int data.
-  template <typename Protocol>
-  int* data(const Protocol&)
-  {
-    return &value_;
-  }
-
-  // Get the address of the int data.
-  template <typename Protocol>
-  const int* data(const Protocol&) const
-  {
-    return &value_;
-  }
-
-  // Get the size of the int data.
-  template <typename Protocol>
-  std::size_t size(const Protocol&) const
-  {
-    return sizeof(value_);
-  }
-
-  // Set the size of the int data.
-  template <typename Protocol>
-  void resize(const Protocol&, std::size_t s)
-  {
-    if (s != sizeof(value_))
-    {
-      std::length_error ex("integer socket option resize");
-      asio::detail::throw_exception(ex);
-    }
-  }
-
-private:
-  int value_;
-};
-
-// Helper template for implementing linger options.
-template <int Level, int Name>
-class linger
-{
-public:
-  // Default constructor.
-  linger()
-  {
-    value_.l_onoff = 0;
-    value_.l_linger = 0;
-  }
-
-  // Construct with specific option values.
-  linger(bool e, int t)
-  {
-    enabled(e);
-    timeout ASIO_PREVENT_MACRO_SUBSTITUTION(t);
-  }
-
-  // Set the value for whether linger is enabled.
-  void enabled(bool value)
-  {
-    value_.l_onoff = value ? 1 : 0;
-  }
-
-  // Get the value for whether linger is enabled.
-  bool enabled() const
-  {
-    return value_.l_onoff != 0;
-  }
-
-  // Set the value for the linger timeout.
-  void timeout ASIO_PREVENT_MACRO_SUBSTITUTION(int value)
-  {
-#if defined(WIN32)
-    value_.l_linger = static_cast<u_short>(value);
-#else
-    value_.l_linger = value;
-#endif
-  }
-
-  // Get the value for the linger timeout.
-  int timeout ASIO_PREVENT_MACRO_SUBSTITUTION() const
-  {
-    return static_cast<int>(value_.l_linger);
-  }
-
-  // Get the level of the socket option.
-  template <typename Protocol>
-  int level(const Protocol&) const
-  {
-    return Level;
-  }
-
-  // Get the name of the socket option.
-  template <typename Protocol>
-  int name(const Protocol&) const
-  {
-    return Name;
-  }
-
-  // Get the address of the linger data.
-  template <typename Protocol>
-  detail::linger_type* data(const Protocol&)
-  {
-    return &value_;
-  }
-
-  // Get the address of the linger data.
-  template <typename Protocol>
-  const detail::linger_type* data(const Protocol&) const
-  {
-    return &value_;
-  }
-
-  // Get the size of the linger data.
-  template <typename Protocol>
-  std::size_t size(const Protocol&) const
-  {
-    return sizeof(value_);
-  }
-
-  // Set the size of the int data.
-  template <typename Protocol>
-  void resize(const Protocol&, std::size_t s)
-  {
-    if (s != sizeof(value_))
-    {
-      std::length_error ex("linger socket option resize");
-      asio::detail::throw_exception(ex);
-    }
-  }
-
-private:
-  detail::linger_type value_;
-};
-
-} // namespace socket_option
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // ASIO_DETAIL_SOCKET_OPTION_HPP
diff --git a/lib/asio/detail/socket_select_interrupter.hpp b/lib/asio/detail/socket_select_interrupter.hpp
deleted file mode 100644
index 7351070..0000000
--- a/lib/asio/detail/socket_select_interrupter.hpp
+++ /dev/null
@@ -1,91 +0,0 @@
-//
-// detail/socket_select_interrupter.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_SOCKET_SELECT_INTERRUPTER_HPP
-#define ASIO_DETAIL_SOCKET_SELECT_INTERRUPTER_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-
-#if !defined(ASIO_WINDOWS_RUNTIME)
-
-#if defined(ASIO_WINDOWS) \
-  || defined(__CYGWIN__) \
-  || defined(__SYMBIAN32__)
-
-#include "asio/detail/socket_types.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-class socket_select_interrupter
-{
-public:
-  // Constructor.
-  ASIO_DECL socket_select_interrupter();
-
-  // Destructor.
-  ASIO_DECL ~socket_select_interrupter();
-
-  // Recreate the interrupter's descriptors. Used after a fork.
-  ASIO_DECL void recreate();
-
-  // Interrupt the select call.
-  ASIO_DECL void interrupt();
-
-  // Reset the select interrupt. Returns true if the call was interrupted.
-  ASIO_DECL bool reset();
-
-  // Get the read descriptor to be passed to select.
-  socket_type read_descriptor() const
-  {
-    return read_descriptor_;
-  }
-
-private:
-  // Open the descriptors. Throws on error.
-  ASIO_DECL void open_descriptors();
-
-  // Close the descriptors.
-  ASIO_DECL void close_descriptors();
-
-  // The read end of a connection used to interrupt the select call. This file
-  // descriptor is passed to select such that when it is time to stop, a single
-  // byte will be written on the other end of the connection and this
-  // descriptor will become readable.
-  socket_type read_descriptor_;
-
-  // The write end of a connection used to interrupt the select call. A single
-  // byte may be written to this to wake up the select which is waiting for the
-  // other end to become readable.
-  socket_type write_descriptor_;
-};
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#if defined(ASIO_HEADER_ONLY)
-# include "asio/detail/impl/socket_select_interrupter.ipp"
-#endif // defined(ASIO_HEADER_ONLY)
-
-#endif // defined(ASIO_WINDOWS)
-       // || defined(__CYGWIN__)
-       // || defined(__SYMBIAN32__)
-
-#endif // !defined(ASIO_WINDOWS_RUNTIME)
-
-#endif // ASIO_DETAIL_SOCKET_SELECT_INTERRUPTER_HPP
diff --git a/lib/asio/detail/socket_types.hpp b/lib/asio/detail/socket_types.hpp
deleted file mode 100644
index d354343..0000000
--- a/lib/asio/detail/socket_types.hpp
+++ /dev/null
@@ -1,416 +0,0 @@
-//
-// detail/socket_types.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_SOCKET_TYPES_HPP
-#define ASIO_DETAIL_SOCKET_TYPES_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-
-#if defined(ASIO_WINDOWS_RUNTIME)
-// Empty.
-#elif defined(ASIO_WINDOWS) || defined(__CYGWIN__)
-# if defined(_WINSOCKAPI_) && !defined(_WINSOCK2API_)
-#  error WinSock.h has already been included
-# endif // defined(_WINSOCKAPI_) && !defined(_WINSOCK2API_)
-# if defined(__BORLANDC__)
-#  include <stdlib.h> // Needed for __errno
-#  if !defined(_WSPIAPI_H_)
-#   define _WSPIAPI_H_
-#   define ASIO_WSPIAPI_H_DEFINED
-#  endif // !defined(_WSPIAPI_H_)
-# endif // defined(__BORLANDC__)
-# include <winsock2.h>
-# include <ws2tcpip.h>
-# if defined(WINAPI_FAMILY)
-#  if ((WINAPI_FAMILY & WINAPI_PARTITION_DESKTOP) != 0)
-#   include <windows.h>
-#  endif // ((WINAPI_FAMILY & WINAPI_PARTITION_DESKTOP) != 0)
-# endif // defined(WINAPI_FAMILY)
-# if !defined(ASIO_WINDOWS_APP)
-#  include <mswsock.h>
-# endif // !defined(ASIO_WINDOWS_APP)
-# if defined(ASIO_WSPIAPI_H_DEFINED)
-#  undef _WSPIAPI_H_
-#  undef ASIO_WSPIAPI_H_DEFINED
-# endif // defined(ASIO_WSPIAPI_H_DEFINED)
-# if !defined(ASIO_NO_DEFAULT_LINKED_LIBS)
-#  if defined(UNDER_CE)
-#   pragma comment(lib, "ws2.lib")
-#  elif defined(_MSC_VER) || defined(__BORLANDC__)
-#   pragma comment(lib, "ws2_32.lib")
-#   if !defined(ASIO_WINDOWS_APP)
-#    pragma comment(lib, "mswsock.lib")
-#   endif // !defined(ASIO_WINDOWS_APP)
-#  endif // defined(_MSC_VER) || defined(__BORLANDC__)
-# endif // !defined(ASIO_NO_DEFAULT_LINKED_LIBS)
-# include "asio/detail/old_win_sdk_compat.hpp"
-#else
-# include <sys/ioctl.h>
-# if (defined(__MACH__) && defined(__APPLE__)) \
-   || defined(__FreeBSD__) || defined(__NetBSD__) \
-   || defined(__OpenBSD__) || defined(__linux__) \
-   || defined(__EMSCRIPTEN__)
-#  include <poll.h>
-# elif !defined(__SYMBIAN32__)
-#  include <sys/poll.h>
-# endif
-# include <sys/types.h>
-# include <sys/stat.h>
-# include <fcntl.h>
-# if defined(__hpux)
-#  include <sys/time.h>
-# endif
-# if !defined(__hpux) || defined(__SELECT)
-#  include <sys/select.h>
-# endif
-# include <sys/socket.h>
-# include <sys/uio.h>
-# include <sys/un.h>
-# include <netinet/in.h>
-# if !defined(__SYMBIAN32__)
-#  include <netinet/tcp.h>
-# endif
-# include <arpa/inet.h>
-# include <netdb.h>
-# include <net/if.h>
-# include <limits.h>
-# if defined(__sun)
-#  include <sys/filio.h>
-#  include <sys/sockio.h>
-# endif
-#endif
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-#if defined(ASIO_WINDOWS_RUNTIME)
-const int max_addr_v4_str_len = 256;
-const int max_addr_v6_str_len = 256;
-typedef unsigned __int32 u_long_type;
-typedef unsigned __int16 u_short_type;
-struct in4_addr_type { u_long_type s_addr; };
-struct in4_mreq_type { in4_addr_type imr_multiaddr, imr_interface; };
-struct in6_addr_type { unsigned char s6_addr[16]; };
-struct in6_mreq_type { in6_addr_type ipv6mr_multiaddr;
-  unsigned long ipv6mr_interface; };
-struct socket_addr_type { int sa_family; };
-struct sockaddr_in4_type { int sin_family;
-  in4_addr_type sin_addr; u_short_type sin_port; };
-struct sockaddr_in6_type { int sin6_family;
-  in6_addr_type sin6_addr; u_short_type sin6_port;
-  u_long_type sin6_flowinfo; u_long_type sin6_scope_id; };
-struct sockaddr_storage_type { int ss_family;
-  unsigned char ss_bytes[128 - sizeof(int)]; };
-struct addrinfo_type { int ai_flags;
-  int ai_family, ai_socktype, ai_protocol;
-  int ai_addrlen; const void* ai_addr;
-  const char* ai_canonname; addrinfo_type* ai_next; };
-struct linger_type { u_short_type l_onoff, l_linger; };
-typedef u_long_type ioctl_arg_type;
-typedef int signed_size_type;
-# define ASIO_OS_DEF(c) ASIO_OS_DEF_##c
-# define ASIO_OS_DEF_AF_UNSPEC 0
-# define ASIO_OS_DEF_AF_INET 2
-# define ASIO_OS_DEF_AF_INET6 23
-# define ASIO_OS_DEF_SOCK_STREAM 1
-# define ASIO_OS_DEF_SOCK_DGRAM 2
-# define ASIO_OS_DEF_SOCK_RAW 3
-# define ASIO_OS_DEF_SOCK_SEQPACKET 5
-# define ASIO_OS_DEF_IPPROTO_IP 0
-# define ASIO_OS_DEF_IPPROTO_IPV6 41
-# define ASIO_OS_DEF_IPPROTO_TCP 6
-# define ASIO_OS_DEF_IPPROTO_UDP 17
-# define ASIO_OS_DEF_IPPROTO_ICMP 1
-# define ASIO_OS_DEF_IPPROTO_ICMPV6 58
-# define ASIO_OS_DEF_FIONBIO 1
-# define ASIO_OS_DEF_FIONREAD 2
-# define ASIO_OS_DEF_INADDR_ANY 0
-# define ASIO_OS_DEF_MSG_OOB 0x1
-# define ASIO_OS_DEF_MSG_PEEK 0x2
-# define ASIO_OS_DEF_MSG_DONTROUTE 0x4
-# define ASIO_OS_DEF_MSG_EOR 0 // Not supported.
-# define ASIO_OS_DEF_SHUT_RD 0x0
-# define ASIO_OS_DEF_SHUT_WR 0x1
-# define ASIO_OS_DEF_SHUT_RDWR 0x2
-# define ASIO_OS_DEF_SOMAXCONN 0x7fffffff
-# define ASIO_OS_DEF_SOL_SOCKET 0xffff
-# define ASIO_OS_DEF_SO_BROADCAST 0x20
-# define ASIO_OS_DEF_SO_DEBUG 0x1
-# define ASIO_OS_DEF_SO_DONTROUTE 0x10
-# define ASIO_OS_DEF_SO_KEEPALIVE 0x8
-# define ASIO_OS_DEF_SO_LINGER 0x80
-# define ASIO_OS_DEF_SO_OOBINLINE 0x100
-# define ASIO_OS_DEF_SO_SNDBUF 0x1001
-# define ASIO_OS_DEF_SO_RCVBUF 0x1002
-# define ASIO_OS_DEF_SO_SNDLOWAT 0x1003
-# define ASIO_OS_DEF_SO_RCVLOWAT 0x1004
-# define ASIO_OS_DEF_SO_REUSEADDR 0x4
-# define ASIO_OS_DEF_TCP_NODELAY 0x1
-# define ASIO_OS_DEF_IP_MULTICAST_IF 2
-# define ASIO_OS_DEF_IP_MULTICAST_TTL 3
-# define ASIO_OS_DEF_IP_MULTICAST_LOOP 4
-# define ASIO_OS_DEF_IP_ADD_MEMBERSHIP 5
-# define ASIO_OS_DEF_IP_DROP_MEMBERSHIP 6
-# define ASIO_OS_DEF_IP_TTL 7
-# define ASIO_OS_DEF_IPV6_UNICAST_HOPS 4
-# define ASIO_OS_DEF_IPV6_MULTICAST_IF 9
-# define ASIO_OS_DEF_IPV6_MULTICAST_HOPS 10
-# define ASIO_OS_DEF_IPV6_MULTICAST_LOOP 11
-# define ASIO_OS_DEF_IPV6_JOIN_GROUP 12
-# define ASIO_OS_DEF_IPV6_LEAVE_GROUP 13
-# define ASIO_OS_DEF_AI_CANONNAME 0x2
-# define ASIO_OS_DEF_AI_PASSIVE 0x1
-# define ASIO_OS_DEF_AI_NUMERICHOST 0x4
-# define ASIO_OS_DEF_AI_NUMERICSERV 0x8
-# define ASIO_OS_DEF_AI_V4MAPPED 0x800
-# define ASIO_OS_DEF_AI_ALL 0x100
-# define ASIO_OS_DEF_AI_ADDRCONFIG 0x400
-#elif defined(ASIO_WINDOWS) || defined(__CYGWIN__)
-typedef SOCKET socket_type;
-const SOCKET invalid_socket = INVALID_SOCKET;
-const int socket_error_retval = SOCKET_ERROR;
-const int max_addr_v4_str_len = 256;
-const int max_addr_v6_str_len = 256;
-typedef sockaddr socket_addr_type;
-typedef in_addr in4_addr_type;
-typedef ip_mreq in4_mreq_type;
-typedef sockaddr_in sockaddr_in4_type;
-# if defined(ASIO_HAS_OLD_WIN_SDK)
-typedef in6_addr_emulation in6_addr_type;
-typedef ipv6_mreq_emulation in6_mreq_type;
-typedef sockaddr_in6_emulation sockaddr_in6_type;
-typedef sockaddr_storage_emulation sockaddr_storage_type;
-typedef addrinfo_emulation addrinfo_type;
-# else
-typedef in6_addr in6_addr_type;
-typedef ipv6_mreq in6_mreq_type;
-typedef sockaddr_in6 sockaddr_in6_type;
-typedef sockaddr_storage sockaddr_storage_type;
-typedef addrinfo addrinfo_type;
-# endif
-typedef ::linger linger_type;
-typedef unsigned long ioctl_arg_type;
-typedef u_long u_long_type;
-typedef u_short u_short_type;
-typedef int signed_size_type;
-# define ASIO_OS_DEF(c) ASIO_OS_DEF_##c
-# define ASIO_OS_DEF_AF_UNSPEC AF_UNSPEC
-# define ASIO_OS_DEF_AF_INET AF_INET
-# define ASIO_OS_DEF_AF_INET6 AF_INET6
-# define ASIO_OS_DEF_SOCK_STREAM SOCK_STREAM
-# define ASIO_OS_DEF_SOCK_DGRAM SOCK_DGRAM
-# define ASIO_OS_DEF_SOCK_RAW SOCK_RAW
-# define ASIO_OS_DEF_SOCK_SEQPACKET SOCK_SEQPACKET
-# define ASIO_OS_DEF_IPPROTO_IP IPPROTO_IP
-# define ASIO_OS_DEF_IPPROTO_IPV6 IPPROTO_IPV6
-# define ASIO_OS_DEF_IPPROTO_TCP IPPROTO_TCP
-# define ASIO_OS_DEF_IPPROTO_UDP IPPROTO_UDP
-# define ASIO_OS_DEF_IPPROTO_ICMP IPPROTO_ICMP
-# define ASIO_OS_DEF_IPPROTO_ICMPV6 IPPROTO_ICMPV6
-# define ASIO_OS_DEF_FIONBIO FIONBIO
-# define ASIO_OS_DEF_FIONREAD FIONREAD
-# define ASIO_OS_DEF_INADDR_ANY INADDR_ANY
-# define ASIO_OS_DEF_MSG_OOB MSG_OOB
-# define ASIO_OS_DEF_MSG_PEEK MSG_PEEK
-# define ASIO_OS_DEF_MSG_DONTROUTE MSG_DONTROUTE
-# define ASIO_OS_DEF_MSG_EOR 0 // Not supported on Windows.
-# define ASIO_OS_DEF_SHUT_RD SD_RECEIVE
-# define ASIO_OS_DEF_SHUT_WR SD_SEND
-# define ASIO_OS_DEF_SHUT_RDWR SD_BOTH
-# define ASIO_OS_DEF_SOMAXCONN SOMAXCONN
-# define ASIO_OS_DEF_SOL_SOCKET SOL_SOCKET
-# define ASIO_OS_DEF_SO_BROADCAST SO_BROADCAST
-# define ASIO_OS_DEF_SO_DEBUG SO_DEBUG
-# define ASIO_OS_DEF_SO_DONTROUTE SO_DONTROUTE
-# define ASIO_OS_DEF_SO_KEEPALIVE SO_KEEPALIVE
-# define ASIO_OS_DEF_SO_LINGER SO_LINGER
-# define ASIO_OS_DEF_SO_OOBINLINE SO_OOBINLINE
-# define ASIO_OS_DEF_SO_SNDBUF SO_SNDBUF
-# define ASIO_OS_DEF_SO_RCVBUF SO_RCVBUF
-# define ASIO_OS_DEF_SO_SNDLOWAT SO_SNDLOWAT
-# define ASIO_OS_DEF_SO_RCVLOWAT SO_RCVLOWAT
-# define ASIO_OS_DEF_SO_REUSEADDR SO_REUSEADDR
-# define ASIO_OS_DEF_TCP_NODELAY TCP_NODELAY
-# define ASIO_OS_DEF_IP_MULTICAST_IF IP_MULTICAST_IF
-# define ASIO_OS_DEF_IP_MULTICAST_TTL IP_MULTICAST_TTL
-# define ASIO_OS_DEF_IP_MULTICAST_LOOP IP_MULTICAST_LOOP
-# define ASIO_OS_DEF_IP_ADD_MEMBERSHIP IP_ADD_MEMBERSHIP
-# define ASIO_OS_DEF_IP_DROP_MEMBERSHIP IP_DROP_MEMBERSHIP
-# define ASIO_OS_DEF_IP_TTL IP_TTL
-# define ASIO_OS_DEF_IPV6_UNICAST_HOPS IPV6_UNICAST_HOPS
-# define ASIO_OS_DEF_IPV6_MULTICAST_IF IPV6_MULTICAST_IF
-# define ASIO_OS_DEF_IPV6_MULTICAST_HOPS IPV6_MULTICAST_HOPS
-# define ASIO_OS_DEF_IPV6_MULTICAST_LOOP IPV6_MULTICAST_LOOP
-# define ASIO_OS_DEF_IPV6_JOIN_GROUP IPV6_JOIN_GROUP
-# define ASIO_OS_DEF_IPV6_LEAVE_GROUP IPV6_LEAVE_GROUP
-# define ASIO_OS_DEF_AI_CANONNAME AI_CANONNAME
-# define ASIO_OS_DEF_AI_PASSIVE AI_PASSIVE
-# define ASIO_OS_DEF_AI_NUMERICHOST AI_NUMERICHOST
-# if defined(AI_NUMERICSERV)
-#  define ASIO_OS_DEF_AI_NUMERICSERV AI_NUMERICSERV
-# else
-#  define ASIO_OS_DEF_AI_NUMERICSERV 0
-# endif
-# if defined(AI_V4MAPPED)
-#  define ASIO_OS_DEF_AI_V4MAPPED AI_V4MAPPED
-# else
-#  define ASIO_OS_DEF_AI_V4MAPPED 0
-# endif
-# if defined(AI_ALL)
-#  define ASIO_OS_DEF_AI_ALL AI_ALL
-# else
-#  define ASIO_OS_DEF_AI_ALL 0
-# endif
-# if defined(AI_ADDRCONFIG)
-#  define ASIO_OS_DEF_AI_ADDRCONFIG AI_ADDRCONFIG
-# else
-#  define ASIO_OS_DEF_AI_ADDRCONFIG 0
-# endif
-# if defined (_WIN32_WINNT)
-const int max_iov_len = 64;
-# else
-const int max_iov_len = 16;
-# endif
-#else
-typedef int socket_type;
-const int invalid_socket = -1;
-const int socket_error_retval = -1;
-const int max_addr_v4_str_len = INET_ADDRSTRLEN;
-#if defined(INET6_ADDRSTRLEN)
-const int max_addr_v6_str_len = INET6_ADDRSTRLEN + 1 + IF_NAMESIZE;
-#else // defined(INET6_ADDRSTRLEN)
-const int max_addr_v6_str_len = 256;
-#endif // defined(INET6_ADDRSTRLEN)
-typedef sockaddr socket_addr_type;
-typedef in_addr in4_addr_type;
-# if defined(__hpux)
-// HP-UX doesn't provide ip_mreq when _XOPEN_SOURCE_EXTENDED is defined.
-struct in4_mreq_type
-{
-  struct in_addr imr_multiaddr;
-  struct in_addr imr_interface;
-};
-# else
-typedef ip_mreq in4_mreq_type;
-# endif
-typedef sockaddr_in sockaddr_in4_type;
-typedef in6_addr in6_addr_type;
-typedef ipv6_mreq in6_mreq_type;
-typedef sockaddr_in6 sockaddr_in6_type;
-typedef sockaddr_storage sockaddr_storage_type;
-typedef sockaddr_un sockaddr_un_type;
-typedef addrinfo addrinfo_type;
-typedef ::linger linger_type;
-typedef int ioctl_arg_type;
-typedef uint32_t u_long_type;
-typedef uint16_t u_short_type;
-#if defined(ASIO_HAS_SSIZE_T)
-typedef ssize_t signed_size_type;
-#else // defined(ASIO_HAS_SSIZE_T)
-typedef int signed_size_type;
-#endif // defined(ASIO_HAS_SSIZE_T)
-# define ASIO_OS_DEF(c) ASIO_OS_DEF_##c
-# define ASIO_OS_DEF_AF_UNSPEC AF_UNSPEC
-# define ASIO_OS_DEF_AF_INET AF_INET
-# define ASIO_OS_DEF_AF_INET6 AF_INET6
-# define ASIO_OS_DEF_SOCK_STREAM SOCK_STREAM
-# define ASIO_OS_DEF_SOCK_DGRAM SOCK_DGRAM
-# define ASIO_OS_DEF_SOCK_RAW SOCK_RAW
-# define ASIO_OS_DEF_SOCK_SEQPACKET SOCK_SEQPACKET
-# define ASIO_OS_DEF_IPPROTO_IP IPPROTO_IP
-# define ASIO_OS_DEF_IPPROTO_IPV6 IPPROTO_IPV6
-# define ASIO_OS_DEF_IPPROTO_TCP IPPROTO_TCP
-# define ASIO_OS_DEF_IPPROTO_UDP IPPROTO_UDP
-# define ASIO_OS_DEF_IPPROTO_ICMP IPPROTO_ICMP
-# define ASIO_OS_DEF_IPPROTO_ICMPV6 IPPROTO_ICMPV6
-# define ASIO_OS_DEF_FIONBIO FIONBIO
-# define ASIO_OS_DEF_FIONREAD FIONREAD
-# define ASIO_OS_DEF_INADDR_ANY INADDR_ANY
-# define ASIO_OS_DEF_MSG_OOB MSG_OOB
-# define ASIO_OS_DEF_MSG_PEEK MSG_PEEK
-# define ASIO_OS_DEF_MSG_DONTROUTE MSG_DONTROUTE
-# define ASIO_OS_DEF_MSG_EOR MSG_EOR
-# define ASIO_OS_DEF_SHUT_RD SHUT_RD
-# define ASIO_OS_DEF_SHUT_WR SHUT_WR
-# define ASIO_OS_DEF_SHUT_RDWR SHUT_RDWR
-# define ASIO_OS_DEF_SOMAXCONN SOMAXCONN
-# define ASIO_OS_DEF_SOL_SOCKET SOL_SOCKET
-# define ASIO_OS_DEF_SO_BROADCAST SO_BROADCAST
-# define ASIO_OS_DEF_SO_DEBUG SO_DEBUG
-# define ASIO_OS_DEF_SO_DONTROUTE SO_DONTROUTE
-# define ASIO_OS_DEF_SO_KEEPALIVE SO_KEEPALIVE
-# define ASIO_OS_DEF_SO_LINGER SO_LINGER
-# define ASIO_OS_DEF_SO_OOBINLINE SO_OOBINLINE
-# define ASIO_OS_DEF_SO_SNDBUF SO_SNDBUF
-# define ASIO_OS_DEF_SO_RCVBUF SO_RCVBUF
-# define ASIO_OS_DEF_SO_SNDLOWAT SO_SNDLOWAT
-# define ASIO_OS_DEF_SO_RCVLOWAT SO_RCVLOWAT
-# define ASIO_OS_DEF_SO_REUSEADDR SO_REUSEADDR
-# define ASIO_OS_DEF_TCP_NODELAY TCP_NODELAY
-# define ASIO_OS_DEF_IP_MULTICAST_IF IP_MULTICAST_IF
-# define ASIO_OS_DEF_IP_MULTICAST_TTL IP_MULTICAST_TTL
-# define ASIO_OS_DEF_IP_MULTICAST_LOOP IP_MULTICAST_LOOP
-# define ASIO_OS_DEF_IP_ADD_MEMBERSHIP IP_ADD_MEMBERSHIP
-# define ASIO_OS_DEF_IP_DROP_MEMBERSHIP IP_DROP_MEMBERSHIP
-# define ASIO_OS_DEF_IP_TTL IP_TTL
-# define ASIO_OS_DEF_IPV6_UNICAST_HOPS IPV6_UNICAST_HOPS
-# define ASIO_OS_DEF_IPV6_MULTICAST_IF IPV6_MULTICAST_IF
-# define ASIO_OS_DEF_IPV6_MULTICAST_HOPS IPV6_MULTICAST_HOPS
-# define ASIO_OS_DEF_IPV6_MULTICAST_LOOP IPV6_MULTICAST_LOOP
-# define ASIO_OS_DEF_IPV6_JOIN_GROUP IPV6_JOIN_GROUP
-# define ASIO_OS_DEF_IPV6_LEAVE_GROUP IPV6_LEAVE_GROUP
-# define ASIO_OS_DEF_AI_CANONNAME AI_CANONNAME
-# define ASIO_OS_DEF_AI_PASSIVE AI_PASSIVE
-# define ASIO_OS_DEF_AI_NUMERICHOST AI_NUMERICHOST
-# if defined(AI_NUMERICSERV)
-#  define ASIO_OS_DEF_AI_NUMERICSERV AI_NUMERICSERV
-# else
-#  define ASIO_OS_DEF_AI_NUMERICSERV 0
-# endif
-// Note: QNX Neutrino 6.3 defines AI_V4MAPPED, AI_ALL and AI_ADDRCONFIG but
-// does not implement them. Therefore they are specifically excluded here.
-# if defined(AI_V4MAPPED) && !defined(__QNXNTO__)
-#  define ASIO_OS_DEF_AI_V4MAPPED AI_V4MAPPED
-# else
-#  define ASIO_OS_DEF_AI_V4MAPPED 0
-# endif
-# if defined(AI_ALL) && !defined(__QNXNTO__)
-#  define ASIO_OS_DEF_AI_ALL AI_ALL
-# else
-#  define ASIO_OS_DEF_AI_ALL 0
-# endif
-# if defined(AI_ADDRCONFIG) && !defined(__QNXNTO__)
-#  define ASIO_OS_DEF_AI_ADDRCONFIG AI_ADDRCONFIG
-# else
-#  define ASIO_OS_DEF_AI_ADDRCONFIG 0
-# endif
-# if defined(IOV_MAX)
-const int max_iov_len = IOV_MAX;
-# else
-// POSIX platforms are not required to define IOV_MAX.
-const int max_iov_len = 16;
-# endif
-#endif
-const int custom_socket_option_level = 0xA5100000;
-const int enable_connection_aborted_option = 1;
-const int always_fail_option = 2;
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // ASIO_DETAIL_SOCKET_TYPES_HPP
diff --git a/lib/asio/detail/solaris_fenced_block.hpp b/lib/asio/detail/solaris_fenced_block.hpp
deleted file mode 100644
index d48f6a3..0000000
--- a/lib/asio/detail/solaris_fenced_block.hpp
+++ /dev/null
@@ -1,62 +0,0 @@
-//
-// detail/solaris_fenced_block.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_SOLARIS_FENCED_BLOCK_HPP
-#define ASIO_DETAIL_SOLARIS_FENCED_BLOCK_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-
-#if defined(__sun)
-
-#include <atomic.h>
-#include "asio/detail/noncopyable.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-class solaris_fenced_block
-  : private noncopyable
-{
-public:
-  enum half_t { half };
-  enum full_t { full };
-
-  // Constructor for a half fenced block.
-  explicit solaris_fenced_block(half_t)
-  {
-  }
-
-  // Constructor for a full fenced block.
-  explicit solaris_fenced_block(full_t)
-  {
-    membar_consumer();
-  }
-
-  // Destructor.
-  ~solaris_fenced_block()
-  {
-    membar_producer();
-  }
-};
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // defined(__sun)
-
-#endif // ASIO_DETAIL_SOLARIS_FENCED_BLOCK_HPP
diff --git a/lib/asio/detail/static_mutex.hpp b/lib/asio/detail/static_mutex.hpp
deleted file mode 100644
index 8f2bc02..0000000
--- a/lib/asio/detail/static_mutex.hpp
+++ /dev/null
@@ -1,52 +0,0 @@
-//
-// detail/static_mutex.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_STATIC_MUTEX_HPP
-#define ASIO_DETAIL_STATIC_MUTEX_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-
-#if !defined(ASIO_HAS_THREADS)
-# include "asio/detail/null_static_mutex.hpp"
-#elif defined(ASIO_WINDOWS)
-# include "asio/detail/win_static_mutex.hpp"
-#elif defined(ASIO_HAS_PTHREADS)
-# include "asio/detail/posix_static_mutex.hpp"
-#elif defined(ASIO_HAS_STD_MUTEX_AND_CONDVAR)
-# include "asio/detail/std_static_mutex.hpp"
-#else
-# error Only Windows and POSIX are supported!
-#endif
-
-namespace asio {
-namespace detail {
-
-#if !defined(ASIO_HAS_THREADS)
-typedef null_static_mutex static_mutex;
-# define ASIO_STATIC_MUTEX_INIT ASIO_NULL_STATIC_MUTEX_INIT
-#elif defined(ASIO_WINDOWS)
-typedef win_static_mutex static_mutex;
-# define ASIO_STATIC_MUTEX_INIT ASIO_WIN_STATIC_MUTEX_INIT
-#elif defined(ASIO_HAS_PTHREADS)
-typedef posix_static_mutex static_mutex;
-# define ASIO_STATIC_MUTEX_INIT ASIO_POSIX_STATIC_MUTEX_INIT
-#elif defined(ASIO_HAS_STD_MUTEX_AND_CONDVAR)
-typedef std_static_mutex static_mutex;
-# define ASIO_STATIC_MUTEX_INIT ASIO_STD_STATIC_MUTEX_INIT
-#endif
-
-} // namespace detail
-} // namespace asio
-
-#endif // ASIO_DETAIL_STATIC_MUTEX_HPP
diff --git a/lib/asio/detail/std_event.hpp b/lib/asio/detail/std_event.hpp
deleted file mode 100644
index 5639ecd..0000000
--- a/lib/asio/detail/std_event.hpp
+++ /dev/null
@@ -1,176 +0,0 @@
-//
-// detail/std_event.hpp
-// ~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_STD_EVENT_HPP
-#define ASIO_DETAIL_STD_EVENT_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-
-#if defined(ASIO_HAS_STD_MUTEX_AND_CONDVAR)
-
-#include <chrono>
-#include <condition_variable>
-#include "asio/detail/assert.hpp"
-#include "asio/detail/noncopyable.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-class std_event
-  : private noncopyable
-{
-public:
-  // Constructor.
-  std_event()
-    : state_(0)
-  {
-  }
-
-  // Destructor.
-  ~std_event()
-  {
-  }
-
-  // Signal the event. (Retained for backward compatibility.)
-  template <typename Lock>
-  void signal(Lock& lock)
-  {
-    this->signal_all(lock);
-  }
-
-  // Signal all waiters.
-  template <typename Lock>
-  void signal_all(Lock& lock)
-  {
-    ASIO_ASSERT(lock.locked());
-    (void)lock;
-    state_ |= 1;
-    cond_.notify_all();
-  }
-
-  // Unlock the mutex and signal one waiter.
-  template <typename Lock>
-  void unlock_and_signal_one(Lock& lock)
-  {
-    ASIO_ASSERT(lock.locked());
-    state_ |= 1;
-    bool have_waiters = (state_ > 1);
-    lock.unlock();
-    if (have_waiters)
-      cond_.notify_one();
-  }
-
-  // If there's a waiter, unlock the mutex and signal it.
-  template <typename Lock>
-  bool maybe_unlock_and_signal_one(Lock& lock)
-  {
-    ASIO_ASSERT(lock.locked());
-    state_ |= 1;
-    if (state_ > 1)
-    {
-      lock.unlock();
-      cond_.notify_one();
-      return true;
-    }
-    return false;
-  }
-
-  // Reset the event.
-  template <typename Lock>
-  void clear(Lock& lock)
-  {
-    ASIO_ASSERT(lock.locked());
-    (void)lock;
-    state_ &= ~std::size_t(1);
-  }
-
-  // Wait for the event to become signalled.
-  template <typename Lock>
-  void wait(Lock& lock)
-  {
-    ASIO_ASSERT(lock.locked());
-    unique_lock_adapter u_lock(lock);
-    while ((state_ & 1) == 0)
-    {
-      waiter w(state_);
-      cond_.wait(u_lock.unique_lock_);
-    }
-  }
-
-  // Timed wait for the event to become signalled.
-  template <typename Lock>
-  bool wait_for_usec(Lock& lock, long usec)
-  {
-    ASIO_ASSERT(lock.locked());
-    unique_lock_adapter u_lock(lock);
-    if ((state_ & 1) == 0)
-    {
-      waiter w(state_);
-      cond_.wait_for(u_lock.unique_lock_, std::chrono::microseconds(usec));
-    }
-    return (state_ & 1) != 0;
-  }
-
-private:
-  // Helper class to temporarily adapt a scoped_lock into a unique_lock so that
-  // it can be passed to std::condition_variable::wait().
-  struct unique_lock_adapter
-  {
-    template <typename Lock>
-    explicit unique_lock_adapter(Lock& lock)
-      : unique_lock_(lock.mutex().mutex_, std::adopt_lock)
-    {
-    }
-
-    ~unique_lock_adapter()
-    {
-      unique_lock_.release();
-    }
-
-    std::unique_lock<std::mutex> unique_lock_;
-  };
-
-  // Helper to increment and decrement the state to track outstanding waiters.
-  class waiter
-  {
-  public:
-    explicit waiter(std::size_t& state)
-      : state_(state)
-    {
-      state_ += 2;
-    }
-
-    ~waiter()
-    {
-      state_ -= 2;
-    }
-
-  private:
-    std::size_t& state_;
-  };
-
-  std::condition_variable cond_;
-  std::size_t state_;
-};
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // defined(ASIO_HAS_STD_MUTEX_AND_CONDVAR)
-
-#endif // ASIO_DETAIL_STD_EVENT_HPP
diff --git a/lib/asio/detail/std_fenced_block.hpp b/lib/asio/detail/std_fenced_block.hpp
deleted file mode 100644
index 0d8ade0..0000000
--- a/lib/asio/detail/std_fenced_block.hpp
+++ /dev/null
@@ -1,62 +0,0 @@
-//
-// detail/std_fenced_block.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_STD_FENCED_BLOCK_HPP
-#define ASIO_DETAIL_STD_FENCED_BLOCK_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-
-#if defined(ASIO_HAS_STD_ATOMIC)
-
-#include <atomic>
-#include "asio/detail/noncopyable.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-class std_fenced_block
-  : private noncopyable
-{
-public:
-  enum half_t { half };
-  enum full_t { full };
-
-  // Constructor for a half fenced block.
-  explicit std_fenced_block(half_t)
-  {
-  }
-
-  // Constructor for a full fenced block.
-  explicit std_fenced_block(full_t)
-  {
-    std::atomic_thread_fence(std::memory_order_acquire);
-  }
-
-  // Destructor.
-  ~std_fenced_block()
-  {
-    std::atomic_thread_fence(std::memory_order_release);
-  }
-};
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // defined(ASIO_HAS_STD_ATOMIC)
-
-#endif // ASIO_DETAIL_STD_FENCED_BLOCK_HPP
diff --git a/lib/asio/detail/std_global.hpp b/lib/asio/detail/std_global.hpp
deleted file mode 100644
index 0c5173e..0000000
--- a/lib/asio/detail/std_global.hpp
+++ /dev/null
@@ -1,70 +0,0 @@
-//
-// detail/std_global.hpp
-// ~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_STD_GLOBAL_HPP
-#define ASIO_DETAIL_STD_GLOBAL_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-
-#if defined(ASIO_HAS_STD_CALL_ONCE)
-
-#include <exception>
-#include <mutex>
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-template <typename T>
-struct std_global_impl
-{
-  // Helper function to perform initialisation.
-  static void do_init()
-  {
-    instance_.ptr_ = new T;
-  }
-
-  // Destructor automatically cleans up the global.
-  ~std_global_impl()
-  {
-    delete ptr_;
-  }
-
-  static std::once_flag init_once_;
-  static std_global_impl instance_;
-  T* ptr_;
-};
-
-template <typename T>
-std::once_flag std_global_impl<T>::init_once_;
-
-template <typename T>
-std_global_impl<T> std_global_impl<T>::instance_;
-
-template <typename T>
-T& std_global()
-{
-  std::call_once(std_global_impl<T>::init_once_, &std_global_impl<T>::do_init);
-  return *std_global_impl<T>::instance_.ptr_;
-}
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // defined(ASIO_HAS_STD_CALL_ONCE)
-
-#endif // ASIO_DETAIL_STD_GLOBAL_HPP
diff --git a/lib/asio/detail/std_mutex.hpp b/lib/asio/detail/std_mutex.hpp
deleted file mode 100644
index 159049e..0000000
--- a/lib/asio/detail/std_mutex.hpp
+++ /dev/null
@@ -1,73 +0,0 @@
-//
-// detail/std_mutex.hpp
-// ~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_STD_MUTEX_HPP
-#define ASIO_DETAIL_STD_MUTEX_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-
-#if defined(ASIO_HAS_STD_MUTEX_AND_CONDVAR)
-
-#include <mutex>
-#include "asio/detail/noncopyable.hpp"
-#include "asio/detail/scoped_lock.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-class std_event;
-
-class std_mutex
-  : private noncopyable
-{
-public:
-  typedef asio::detail::scoped_lock<std_mutex> scoped_lock;
-
-  // Constructor.
-  std_mutex()
-  {
-  }
-
-  // Destructor.
-  ~std_mutex()
-  {
-  }
-
-  // Lock the mutex.
-  void lock()
-  {
-    mutex_.lock();
-  }
-
-  // Unlock the mutex.
-  void unlock()
-  {
-    mutex_.unlock();
-  }
-
-private:
-  friend class std_event;
-  std::mutex mutex_;
-};
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // defined(ASIO_HAS_STD_MUTEX_AND_CONDVAR)
-
-#endif // ASIO_DETAIL_STD_MUTEX_HPP
diff --git a/lib/asio/detail/std_static_mutex.hpp b/lib/asio/detail/std_static_mutex.hpp
deleted file mode 100644
index e9c9dc5..0000000
--- a/lib/asio/detail/std_static_mutex.hpp
+++ /dev/null
@@ -1,81 +0,0 @@
-//
-// detail/std_static_mutex.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_STD_STATIC_MUTEX_HPP
-#define ASIO_DETAIL_STD_STATIC_MUTEX_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-
-#if defined(ASIO_HAS_STD_MUTEX_AND_CONDVAR)
-
-#include <mutex>
-#include "asio/detail/noncopyable.hpp"
-#include "asio/detail/scoped_lock.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-class std_event;
-
-class std_static_mutex
-  : private noncopyable
-{
-public:
-  typedef asio::detail::scoped_lock<std_static_mutex> scoped_lock;
-
-  // Constructor.
-  std_static_mutex(int)
-  {
-  }
-
-  // Destructor.
-  ~std_static_mutex()
-  {
-  }
-
-  // Initialise the mutex.
-  void init()
-  {
-    // Nothing to do.
-  }
-
-  // Lock the mutex.
-  void lock()
-  {
-    mutex_.lock();
-  }
-
-  // Unlock the mutex.
-  void unlock()
-  {
-    mutex_.unlock();
-  }
-
-private:
-  friend class std_event;
-  std::mutex mutex_;
-};
-
-#define ASIO_STD_STATIC_MUTEX_INIT 0
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // defined(ASIO_HAS_STD_MUTEX_AND_CONDVAR)
-
-#endif // ASIO_DETAIL_STD_STATIC_MUTEX_HPP
diff --git a/lib/asio/detail/std_thread.hpp b/lib/asio/detail/std_thread.hpp
deleted file mode 100644
index a240308..0000000
--- a/lib/asio/detail/std_thread.hpp
+++ /dev/null
@@ -1,71 +0,0 @@
-//
-// detail/std_thread.hpp
-// ~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_STD_THREAD_HPP
-#define ASIO_DETAIL_STD_THREAD_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-
-#if defined(ASIO_HAS_STD_THREAD)
-
-#include <thread>
-#include "asio/detail/noncopyable.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-class std_thread
-  : private noncopyable
-{
-public:
-  // Constructor.
-  template <typename Function>
-  std_thread(Function f, unsigned int = 0)
-    : thread_(f)
-  {
-  }
-
-  // Destructor.
-  ~std_thread()
-  {
-    join();
-  }
-
-  // Wait for the thread to exit.
-  void join()
-  {
-    if (thread_.joinable())
-      thread_.join();
-  }
-
-  // Get number of CPUs.
-  static std::size_t hardware_concurrency()
-  {
-    return std::thread::hardware_concurrency();
-  }
-
-private:
-  std::thread thread_;
-};
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // defined(ASIO_HAS_STD_THREAD)
-
-#endif // ASIO_DETAIL_STD_THREAD_HPP
diff --git a/lib/asio/detail/strand_executor_service.hpp b/lib/asio/detail/strand_executor_service.hpp
deleted file mode 100644
index 67e8427..0000000
--- a/lib/asio/detail/strand_executor_service.hpp
+++ /dev/null
@@ -1,142 +0,0 @@
-//
-// detail/strand_executor_service.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_STRAND_EXECUTOR_SERVICE_HPP
-#define ASIO_DETAIL_STRAND_EXECUTOR_SERVICE_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-#include "asio/detail/atomic_count.hpp"
-#include "asio/detail/executor_op.hpp"
-#include "asio/detail/memory.hpp"
-#include "asio/detail/mutex.hpp"
-#include "asio/detail/op_queue.hpp"
-#include "asio/detail/scheduler_operation.hpp"
-#include "asio/detail/scoped_ptr.hpp"
-#include "asio/execution_context.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-// Default service implementation for a strand.
-class strand_executor_service
-  : public execution_context_service_base<strand_executor_service>
-{
-public:
-  // The underlying implementation of a strand.
-  class strand_impl
-  {
-  public:
-    ASIO_DECL ~strand_impl();
-
-  private:
-    friend class strand_executor_service;
-
-    // Mutex to protect access to internal data.
-    mutex* mutex_;
-
-    // Indicates whether the strand is currently "locked" by a handler. This
-    // means that there is a handler upcall in progress, or that the strand
-    // itself has been scheduled in order to invoke some pending handlers.
-    bool locked_;
-
-    // Indicates that the strand has been shut down and will accept no further
-    // handlers.
-    bool shutdown_;
-
-    // The handlers that are waiting on the strand but should not be run until
-    // after the next time the strand is scheduled. This queue must only be
-    // modified while the mutex is locked.
-    op_queue<scheduler_operation> waiting_queue_;
-
-    // The handlers that are ready to be run. Logically speaking, these are the
-    // handlers that hold the strand's lock. The ready queue is only modified
-    // from within the strand and so may be accessed without locking the mutex.
-    op_queue<scheduler_operation> ready_queue_;
-
-    // Pointers to adjacent handle implementations in linked list.
-    strand_impl* next_;
-    strand_impl* prev_;
-
-    // The strand service in where the implementation is held.
-    strand_executor_service* service_;
-  };
-
-  typedef shared_ptr<strand_impl> implementation_type;
-
-  // Construct a new strand service for the specified context.
-  ASIO_DECL explicit strand_executor_service(execution_context& context);
-
-  // Destroy all user-defined handler objects owned by the service.
-  ASIO_DECL void shutdown();
-
-  // Create a new strand_executor implementation.
-  ASIO_DECL implementation_type create_implementation();
-
-  // Request invocation of the given function.
-  template <typename Executor, typename Function, typename Allocator>
-  static void dispatch(const implementation_type& impl, Executor& ex,
-      ASIO_MOVE_ARG(Function) function, const Allocator& a);
-
-  // Request invocation of the given function and return immediately.
-  template <typename Executor, typename Function, typename Allocator>
-  static void post(const implementation_type& impl, Executor& ex,
-      ASIO_MOVE_ARG(Function) function, const Allocator& a);
-
-  // Request invocation of the given function and return immediately.
-  template <typename Executor, typename Function, typename Allocator>
-  static void defer(const implementation_type& impl, Executor& ex,
-      ASIO_MOVE_ARG(Function) function, const Allocator& a);
-
-  // Determine whether the strand is running in the current thread.
-  ASIO_DECL static bool running_in_this_thread(
-      const implementation_type& impl);
-
-private:
-  friend class strand_impl;
-  template <typename Executor> class invoker;
-
-  // Adds a function to the strand. Returns true if it acquires the lock.
-  ASIO_DECL static bool enqueue(const implementation_type& impl,
-      scheduler_operation* op);
-
-  // Mutex to protect access to the service-wide state.
-  mutex mutex_;
-
-  // Number of mutexes shared between all strand objects.
-  enum { num_mutexes = 193 };
-
-  // Pool of mutexes.
-  scoped_ptr<mutex> mutexes_[num_mutexes];
-
-  // Extra value used when hashing to prevent recycled memory locations from
-  // getting the same mutex.
-  std::size_t salt_;
-
-  // The head of a linked list of all implementations.
-  strand_impl* impl_list_;
-};
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#include "asio/detail/impl/strand_executor_service.hpp"
-#if defined(ASIO_HEADER_ONLY)
-# include "asio/detail/impl/strand_executor_service.ipp"
-#endif // defined(ASIO_HEADER_ONLY)
-
-#endif // ASIO_DETAIL_STRAND_EXECUTOR_SERVICE_HPP
diff --git a/lib/asio/detail/strand_service.hpp b/lib/asio/detail/strand_service.hpp
deleted file mode 100644
index edc14a0..0000000
--- a/lib/asio/detail/strand_service.hpp
+++ /dev/null
@@ -1,142 +0,0 @@
-//
-// detail/strand_service.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_STRAND_SERVICE_HPP
-#define ASIO_DETAIL_STRAND_SERVICE_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-#include "asio/io_context.hpp"
-#include "asio/detail/mutex.hpp"
-#include "asio/detail/op_queue.hpp"
-#include "asio/detail/operation.hpp"
-#include "asio/detail/scoped_ptr.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-// Default service implementation for a strand.
-class strand_service
-  : public asio::detail::service_base<strand_service>
-{
-private:
-  // Helper class to re-post the strand on exit.
-  struct on_do_complete_exit;
-
-  // Helper class to re-post the strand on exit.
-  struct on_dispatch_exit;
-
-public:
-
-  // The underlying implementation of a strand.
-  class strand_impl
-    : public operation
-  {
-  public:
-    strand_impl();
-
-  private:
-    // Only this service will have access to the internal values.
-    friend class strand_service;
-    friend struct on_do_complete_exit;
-    friend struct on_dispatch_exit;
-
-    // Mutex to protect access to internal data.
-    asio::detail::mutex mutex_;
-
-    // Indicates whether the strand is currently "locked" by a handler. This
-    // means that there is a handler upcall in progress, or that the strand
-    // itself has been scheduled in order to invoke some pending handlers.
-    bool locked_;
-
-    // The handlers that are waiting on the strand but should not be run until
-    // after the next time the strand is scheduled. This queue must only be
-    // modified while the mutex is locked.
-    op_queue<operation> waiting_queue_;
-
-    // The handlers that are ready to be run. Logically speaking, these are the
-    // handlers that hold the strand's lock. The ready queue is only modified
-    // from within the strand and so may be accessed without locking the mutex.
-    op_queue<operation> ready_queue_;
-  };
-
-  typedef strand_impl* implementation_type;
-
-  // Construct a new strand service for the specified io_context.
-  ASIO_DECL explicit strand_service(asio::io_context& io_context);
-
-  // Destroy all user-defined handler objects owned by the service.
-  ASIO_DECL void shutdown();
-
-  // Construct a new strand implementation.
-  ASIO_DECL void construct(implementation_type& impl);
-
-  // Request the io_context to invoke the given handler.
-  template <typename Handler>
-  void dispatch(implementation_type& impl, Handler& handler);
-
-  // Request the io_context to invoke the given handler and return immediately.
-  template <typename Handler>
-  void post(implementation_type& impl, Handler& handler);
-
-  // Determine whether the strand is running in the current thread.
-  ASIO_DECL bool running_in_this_thread(
-      const implementation_type& impl) const;
-
-private:
-  // Helper function to dispatch a handler. Returns true if the handler should
-  // be dispatched immediately.
-  ASIO_DECL bool do_dispatch(implementation_type& impl, operation* op);
-
-  // Helper fiunction to post a handler.
-  ASIO_DECL void do_post(implementation_type& impl,
-      operation* op, bool is_continuation);
-
-  ASIO_DECL static void do_complete(void* owner,
-      operation* base, const asio::error_code& ec,
-      std::size_t bytes_transferred);
-
-  // The io_context implementation used to post completions.
-  io_context_impl& io_context_;
-
-  // Mutex to protect access to the array of implementations.
-  asio::detail::mutex mutex_;
-
-  // Number of implementations shared between all strand objects.
-#if defined(ASIO_STRAND_IMPLEMENTATIONS)
-  enum { num_implementations = ASIO_STRAND_IMPLEMENTATIONS };
-#else // defined(ASIO_STRAND_IMPLEMENTATIONS)
-  enum { num_implementations = 193 };
-#endif // defined(ASIO_STRAND_IMPLEMENTATIONS)
-
-  // Pool of implementations.
-  scoped_ptr<strand_impl> implementations_[num_implementations];
-
-  // Extra value used when hashing to prevent recycled memory locations from
-  // getting the same strand implementation.
-  std::size_t salt_;
-};
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#include "asio/detail/impl/strand_service.hpp"
-#if defined(ASIO_HEADER_ONLY)
-# include "asio/detail/impl/strand_service.ipp"
-#endif // defined(ASIO_HEADER_ONLY)
-
-#endif // ASIO_DETAIL_STRAND_SERVICE_HPP
diff --git a/lib/asio/detail/string_view.hpp b/lib/asio/detail/string_view.hpp
deleted file mode 100644
index f09cebc..0000000
--- a/lib/asio/detail/string_view.hpp
+++ /dev/null
@@ -1,47 +0,0 @@
-//
-// detail/string_view.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_STRING_VIEW_HPP
-#define ASIO_DETAIL_STRING_VIEW_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-
-#if defined(ASIO_HAS_STRING_VIEW)
-
-#if defined(ASIO_HAS_STD_STRING_VIEW)
-# include <string_view>
-#elif defined(ASIO_HAS_STD_EXPERIMENTAL_STRING_VIEW)
-# include <experimental/string_view>
-#else // defined(ASIO_HAS_STD_EXPERIMENTAL_STRING_VIEW)
-# error ASIO_HAS_STRING_VIEW is set but no string_view is available
-#endif // defined(ASIO_HAS_STD_EXPERIMENTAL_STRING_VIEW)
-
-namespace asio {
-
-#if defined(ASIO_HAS_STD_STRING_VIEW)
-using std::basic_string_view;
-using std::string_view;
-#elif defined(ASIO_HAS_STD_EXPERIMENTAL_STRING_VIEW)
-using std::experimental::basic_string_view;
-using std::experimental::string_view;
-#endif // defined(ASIO_HAS_STD_EXPERIMENTAL_STRING_VIEW)
-
-} // namespace asio
-
-# define ASIO_STRING_VIEW_PARAM asio::string_view
-#else // defined(ASIO_HAS_STRING_VIEW)
-# define ASIO_STRING_VIEW_PARAM const std::string&
-#endif // defined(ASIO_HAS_STRING_VIEW)
-
-#endif // ASIO_DETAIL_STRING_VIEW_HPP
diff --git a/lib/asio/detail/thread.hpp b/lib/asio/detail/thread.hpp
deleted file mode 100644
index ea556db..0000000
--- a/lib/asio/detail/thread.hpp
+++ /dev/null
@@ -1,60 +0,0 @@
-//
-// detail/thread.hpp
-// ~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_THREAD_HPP
-#define ASIO_DETAIL_THREAD_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-
-#if !defined(ASIO_HAS_THREADS)
-# include "asio/detail/null_thread.hpp"
-#elif defined(ASIO_WINDOWS)
-# if defined(UNDER_CE)
-#  include "asio/detail/wince_thread.hpp"
-# elif defined(ASIO_WINDOWS_APP)
-#  include "asio/detail/winapp_thread.hpp"
-# else
-#  include "asio/detail/win_thread.hpp"
-# endif
-#elif defined(ASIO_HAS_PTHREADS)
-# include "asio/detail/posix_thread.hpp"
-#elif defined(ASIO_HAS_STD_THREAD)
-# include "asio/detail/std_thread.hpp"
-#else
-# error Only Windows, POSIX and std::thread are supported!
-#endif
-
-namespace asio {
-namespace detail {
-
-#if !defined(ASIO_HAS_THREADS)
-typedef null_thread thread;
-#elif defined(ASIO_WINDOWS)
-# if defined(UNDER_CE)
-typedef wince_thread thread;
-# elif defined(ASIO_WINDOWS_APP)
-typedef winapp_thread thread;
-# else
-typedef win_thread thread;
-# endif
-#elif defined(ASIO_HAS_PTHREADS)
-typedef posix_thread thread;
-#elif defined(ASIO_HAS_STD_THREAD)
-typedef std_thread thread;
-#endif
-
-} // namespace detail
-} // namespace asio
-
-#endif // ASIO_DETAIL_THREAD_HPP
diff --git a/lib/asio/detail/thread_context.hpp b/lib/asio/detail/thread_context.hpp
deleted file mode 100644
index 88b4f31..0000000
--- a/lib/asio/detail/thread_context.hpp
+++ /dev/null
@@ -1,42 +0,0 @@
-//
-// detail/thread_context.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_THREAD_CONTEXT_HPP
-#define ASIO_DETAIL_THREAD_CONTEXT_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include <climits>
-#include <cstddef>
-#include "asio/detail/call_stack.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-class thread_info_base;
-
-// Base class for things that manage threads (scheduler, win_iocp_io_context).
-class thread_context
-{
-public:
-  // Per-thread call stack to track the state of each thread in the context.
-  typedef call_stack<thread_context, thread_info_base> thread_call_stack;
-};
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // ASIO_DETAIL_THREAD_CONTEXT_HPP
diff --git a/lib/asio/detail/thread_group.hpp b/lib/asio/detail/thread_group.hpp
deleted file mode 100644
index 1e400b0..0000000
--- a/lib/asio/detail/thread_group.hpp
+++ /dev/null
@@ -1,89 +0,0 @@
-//
-// detail/thread_group.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_THREAD_GROUP_HPP
-#define ASIO_DETAIL_THREAD_GROUP_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-#include "asio/detail/scoped_ptr.hpp"
-#include "asio/detail/thread.hpp"
-
-namespace asio {
-namespace detail {
-
-class thread_group
-{
-public:
-  // Constructor initialises an empty thread group.
-  thread_group()
-    : first_(0)
-  {
-  }
-
-  // Destructor joins any remaining threads in the group.
-  ~thread_group()
-  {
-    join();
-  }
-
-  // Create a new thread in the group.
-  template <typename Function>
-  void create_thread(Function f)
-  {
-    first_ = new item(f, first_);
-  }
-
-  // Create new threads in the group.
-  template <typename Function>
-  void create_threads(Function f, std::size_t num_threads)
-  {
-    for (std::size_t i = 0; i < num_threads; ++i)
-      create_thread(f);
-  }
-
-  // Wait for all threads in the group to exit.
-  void join()
-  {
-    while (first_)
-    {
-      first_->thread_.join();
-      item* tmp = first_;
-      first_ = first_->next_;
-      delete tmp;
-    }
-  }
-
-private:
-  // Structure used to track a single thread in the group.
-  struct item
-  {
-    template <typename Function>
-    explicit item(Function f, item* next)
-      : thread_(f),
-        next_(next)
-    {
-    }
-
-    asio::detail::thread thread_;
-    item* next_;
-  };
-
-  // The first thread in the group.
-  item* first_;
-};
-
-} // namespace detail
-} // namespace asio
-
-#endif // ASIO_DETAIL_THREAD_GROUP_HPP
diff --git a/lib/asio/detail/thread_info_base.hpp b/lib/asio/detail/thread_info_base.hpp
deleted file mode 100644
index 1b22207..0000000
--- a/lib/asio/detail/thread_info_base.hpp
+++ /dev/null
@@ -1,121 +0,0 @@
-//
-// detail/thread_info_base.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_THREAD_INFO_BASE_HPP
-#define ASIO_DETAIL_THREAD_INFO_BASE_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include <climits>
-#include <cstddef>
-#include "asio/detail/noncopyable.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-class thread_info_base
-  : private noncopyable
-{
-public:
-  struct default_tag
-  {
-    enum { mem_index = 0 };
-  };
-
-  struct awaitee_tag
-  {
-    enum { mem_index = 1 };
-  };
-
-  thread_info_base()
-  {
-    for (int i = 0; i < max_mem_index; ++i)
-      reusable_memory_[i] = 0;
-  }
-
-  ~thread_info_base()
-  {
-    for (int i = 0; i < max_mem_index; ++i)
-      if (reusable_memory_[i])
-        ::operator delete(reusable_memory_[i]);
-  }
-
-  static void* allocate(thread_info_base* this_thread, std::size_t size)
-  {
-    return allocate(default_tag(), this_thread, size);
-  }
-
-  static void deallocate(thread_info_base* this_thread,
-      void* pointer, std::size_t size)
-  {
-    deallocate(default_tag(), this_thread, pointer, size);
-  }
-
-  template <typename Purpose>
-  static void* allocate(Purpose, thread_info_base* this_thread,
-      std::size_t size)
-  {
-    std::size_t chunks = (size + chunk_size - 1) / chunk_size;
-
-    if (this_thread && this_thread->reusable_memory_[Purpose::mem_index])
-    {
-      void* const pointer = this_thread->reusable_memory_[Purpose::mem_index];
-      this_thread->reusable_memory_[Purpose::mem_index] = 0;
-
-      unsigned char* const mem = static_cast<unsigned char*>(pointer);
-      if (static_cast<std::size_t>(mem[0]) >= chunks)
-      {
-        mem[size] = mem[0];
-        return pointer;
-      }
-
-      ::operator delete(pointer);
-    }
-
-    void* const pointer = ::operator new(chunks * chunk_size + 1);
-    unsigned char* const mem = static_cast<unsigned char*>(pointer);
-    mem[size] = (chunks <= UCHAR_MAX) ? static_cast<unsigned char>(chunks) : 0;
-    return pointer;
-  }
-
-  template <typename Purpose>
-  static void deallocate(Purpose, thread_info_base* this_thread,
-      void* pointer, std::size_t size)
-  {
-    if (size <= chunk_size * UCHAR_MAX)
-    {
-      if (this_thread && this_thread->reusable_memory_[Purpose::mem_index] == 0)
-      {
-        unsigned char* const mem = static_cast<unsigned char*>(pointer);
-        mem[0] = mem[size];
-        this_thread->reusable_memory_[Purpose::mem_index] = pointer;
-        return;
-      }
-    }
-
-    ::operator delete(pointer);
-  }
-
-private:
-  enum { chunk_size = 4 };
-  enum { max_mem_index = 2 };
-  void* reusable_memory_[max_mem_index];
-};
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // ASIO_DETAIL_THREAD_INFO_BASE_HPP
diff --git a/lib/asio/detail/throw_error.hpp b/lib/asio/detail/throw_error.hpp
deleted file mode 100644
index 5dd8785..0000000
--- a/lib/asio/detail/throw_error.hpp
+++ /dev/null
@@ -1,53 +0,0 @@
-//
-// detail/throw_error.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_THROW_ERROR_HPP
-#define ASIO_DETAIL_THROW_ERROR_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-#include "asio/error_code.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-ASIO_DECL void do_throw_error(const asio::error_code& err);
-
-ASIO_DECL void do_throw_error(const asio::error_code& err,
-    const char* location);
-
-inline void throw_error(const asio::error_code& err)
-{
-  if (err)
-    do_throw_error(err);
-}
-
-inline void throw_error(const asio::error_code& err,
-    const char* location)
-{
-  if (err)
-    do_throw_error(err, location);
-}
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#if defined(ASIO_HEADER_ONLY)
-# include "asio/detail/impl/throw_error.ipp"
-#endif // defined(ASIO_HEADER_ONLY)
-
-#endif // ASIO_DETAIL_THROW_ERROR_HPP
diff --git a/lib/asio/detail/throw_exception.hpp b/lib/asio/detail/throw_exception.hpp
deleted file mode 100644
index f9f7bfb..0000000
--- a/lib/asio/detail/throw_exception.hpp
+++ /dev/null
@@ -1,51 +0,0 @@
-//
-// detail/throw_exception.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_THROW_EXCEPTION_HPP
-#define ASIO_DETAIL_THROW_EXCEPTION_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-
-#if defined(ASIO_HAS_BOOST_THROW_EXCEPTION)
-# include <boost/throw_exception.hpp>
-#endif // defined(ASIO_BOOST_THROW_EXCEPTION)
-
-namespace asio {
-namespace detail {
-
-#if defined(ASIO_HAS_BOOST_THROW_EXCEPTION)
-using boost::throw_exception;
-#else // defined(ASIO_HAS_BOOST_THROW_EXCEPTION)
-
-// Declare the throw_exception function for all targets.
-template <typename Exception>
-void throw_exception(const Exception& e);
-
-// Only define the throw_exception function when exceptions are enabled.
-// Otherwise, it is up to the application to provide a definition of this
-// function.
-# if !defined(ASIO_NO_EXCEPTIONS)
-template <typename Exception>
-void throw_exception(const Exception& e)
-{
-  throw e;
-}
-# endif // !defined(ASIO_NO_EXCEPTIONS)
-
-#endif // defined(ASIO_HAS_BOOST_THROW_EXCEPTION)
-
-} // namespace detail
-} // namespace asio
-
-#endif // ASIO_DETAIL_THROW_EXCEPTION_HPP
diff --git a/lib/asio/detail/timer_queue.hpp b/lib/asio/detail/timer_queue.hpp
deleted file mode 100644
index 380e779..0000000
--- a/lib/asio/detail/timer_queue.hpp
+++ /dev/null
@@ -1,358 +0,0 @@
-//
-// detail/timer_queue.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_TIMER_QUEUE_HPP
-#define ASIO_DETAIL_TIMER_QUEUE_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-#include <cstddef>
-#include <vector>
-#include "asio/detail/cstdint.hpp"
-#include "asio/detail/date_time_fwd.hpp"
-#include "asio/detail/limits.hpp"
-#include "asio/detail/op_queue.hpp"
-#include "asio/detail/timer_queue_base.hpp"
-#include "asio/detail/wait_op.hpp"
-#include "asio/error.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-template <typename Time_Traits>
-class timer_queue
-  : public timer_queue_base
-{
-public:
-  // The time type.
-  typedef typename Time_Traits::time_type time_type;
-
-  // The duration type.
-  typedef typename Time_Traits::duration_type duration_type;
-
-  // Per-timer data.
-  class per_timer_data
-  {
-  public:
-    per_timer_data() :
-      heap_index_((std::numeric_limits<std::size_t>::max)()),
-      next_(0), prev_(0)
-    {
-    }
-
-  private:
-    friend class timer_queue;
-
-    // The operations waiting on the timer.
-    op_queue<wait_op> op_queue_;
-
-    // The index of the timer in the heap.
-    std::size_t heap_index_;
-
-    // Pointers to adjacent timers in a linked list.
-    per_timer_data* next_;
-    per_timer_data* prev_;
-  };
-
-  // Constructor.
-  timer_queue()
-    : timers_(),
-      heap_()
-  {
-  }
-
-  // Add a new timer to the queue. Returns true if this is the timer that is
-  // earliest in the queue, in which case the reactor's event demultiplexing
-  // function call may need to be interrupted and restarted.
-  bool enqueue_timer(const time_type& time, per_timer_data& timer, wait_op* op)
-  {
-    // Enqueue the timer object.
-    if (timer.prev_ == 0 && &timer != timers_)
-    {
-      if (this->is_positive_infinity(time))
-      {
-        // No heap entry is required for timers that never expire.
-        timer.heap_index_ = (std::numeric_limits<std::size_t>::max)();
-      }
-      else
-      {
-        // Put the new timer at the correct position in the heap. This is done
-        // first since push_back() can throw due to allocation failure.
-        timer.heap_index_ = heap_.size();
-        heap_entry entry = { time, &timer };
-        heap_.push_back(entry);
-        up_heap(heap_.size() - 1);
-      }
-
-      // Insert the new timer into the linked list of active timers.
-      timer.next_ = timers_;
-      timer.prev_ = 0;
-      if (timers_)
-        timers_->prev_ = &timer;
-      timers_ = &timer;
-    }
-
-    // Enqueue the individual timer operation.
-    timer.op_queue_.push(op);
-
-    // Interrupt reactor only if newly added timer is first to expire.
-    return timer.heap_index_ == 0 && timer.op_queue_.front() == op;
-  }
-
-  // Whether there are no timers in the queue.
-  virtual bool empty() const
-  {
-    return timers_ == 0;
-  }
-
-  // Get the time for the timer that is earliest in the queue.
-  virtual long wait_duration_msec(long max_duration) const
-  {
-    if (heap_.empty())
-      return max_duration;
-
-    return this->to_msec(
-        Time_Traits::to_posix_duration(
-          Time_Traits::subtract(heap_[0].time_, Time_Traits::now())),
-        max_duration);
-  }
-
-  // Get the time for the timer that is earliest in the queue.
-  virtual long wait_duration_usec(long max_duration) const
-  {
-    if (heap_.empty())
-      return max_duration;
-
-    return this->to_usec(
-        Time_Traits::to_posix_duration(
-          Time_Traits::subtract(heap_[0].time_, Time_Traits::now())),
-        max_duration);
-  }
-
-  // Dequeue all timers not later than the current time.
-  virtual void get_ready_timers(op_queue<operation>& ops)
-  {
-    if (!heap_.empty())
-    {
-      const time_type now = Time_Traits::now();
-      while (!heap_.empty() && !Time_Traits::less_than(now, heap_[0].time_))
-      {
-        per_timer_data* timer = heap_[0].timer_;
-        ops.push(timer->op_queue_);
-        remove_timer(*timer);
-      }
-    }
-  }
-
-  // Dequeue all timers.
-  virtual void get_all_timers(op_queue<operation>& ops)
-  {
-    while (timers_)
-    {
-      per_timer_data* timer = timers_;
-      timers_ = timers_->next_;
-      ops.push(timer->op_queue_);
-      timer->next_ = 0;
-      timer->prev_ = 0;
-    }
-
-    heap_.clear();
-  }
-
-  // Cancel and dequeue operations for the given timer.
-  std::size_t cancel_timer(per_timer_data& timer, op_queue<operation>& ops,
-      std::size_t max_cancelled = (std::numeric_limits<std::size_t>::max)())
-  {
-    std::size_t num_cancelled = 0;
-    if (timer.prev_ != 0 || &timer == timers_)
-    {
-      while (wait_op* op = (num_cancelled != max_cancelled)
-          ? timer.op_queue_.front() : 0)
-      {
-        op->ec_ = asio::error::operation_aborted;
-        timer.op_queue_.pop();
-        ops.push(op);
-        ++num_cancelled;
-      }
-      if (timer.op_queue_.empty())
-        remove_timer(timer);
-    }
-    return num_cancelled;
-  }
-
-  // Move operations from one timer to another, empty timer.
-  void move_timer(per_timer_data& target, per_timer_data& source)
-  {
-    target.op_queue_.push(source.op_queue_);
-
-    target.heap_index_ = source.heap_index_;
-    source.heap_index_ = (std::numeric_limits<std::size_t>::max)();
-
-    if (target.heap_index_ < heap_.size())
-      heap_[target.heap_index_].timer_ = &target;
-
-    if (timers_ == &source)
-      timers_ = &target;
-    if (source.prev_)
-      source.prev_->next_ = &target;
-    if (source.next_)
-      source.next_->prev_= &target;
-    target.next_ = source.next_;
-    target.prev_ = source.prev_;
-    source.next_ = 0;
-    source.prev_ = 0;
-  }
-
-private:
-  // Move the item at the given index up the heap to its correct position.
-  void up_heap(std::size_t index)
-  {
-    while (index > 0)
-    {
-      std::size_t parent = (index - 1) / 2;
-      if (!Time_Traits::less_than(heap_[index].time_, heap_[parent].time_))
-        break;
-      swap_heap(index, parent);
-      index = parent;
-    }
-  }
-
-  // Move the item at the given index down the heap to its correct position.
-  void down_heap(std::size_t index)
-  {
-    std::size_t child = index * 2 + 1;
-    while (child < heap_.size())
-    {
-      std::size_t min_child = (child + 1 == heap_.size()
-          || Time_Traits::less_than(
-            heap_[child].time_, heap_[child + 1].time_))
-        ? child : child + 1;
-      if (Time_Traits::less_than(heap_[index].time_, heap_[min_child].time_))
-        break;
-      swap_heap(index, min_child);
-      index = min_child;
-      child = index * 2 + 1;
-    }
-  }
-
-  // Swap two entries in the heap.
-  void swap_heap(std::size_t index1, std::size_t index2)
-  {
-    heap_entry tmp = heap_[index1];
-    heap_[index1] = heap_[index2];
-    heap_[index2] = tmp;
-    heap_[index1].timer_->heap_index_ = index1;
-    heap_[index2].timer_->heap_index_ = index2;
-  }
-
-  // Remove a timer from the heap and list of timers.
-  void remove_timer(per_timer_data& timer)
-  {
-    // Remove the timer from the heap.
-    std::size_t index = timer.heap_index_;
-    if (!heap_.empty() && index < heap_.size())
-    {
-      if (index == heap_.size() - 1)
-      {
-        heap_.pop_back();
-      }
-      else
-      {
-        swap_heap(index, heap_.size() - 1);
-        heap_.pop_back();
-        if (index > 0 && Time_Traits::less_than(
-              heap_[index].time_, heap_[(index - 1) / 2].time_))
-          up_heap(index);
-        else
-          down_heap(index);
-      }
-    }
-
-    // Remove the timer from the linked list of active timers.
-    if (timers_ == &timer)
-      timers_ = timer.next_;
-    if (timer.prev_)
-      timer.prev_->next_ = timer.next_;
-    if (timer.next_)
-      timer.next_->prev_= timer.prev_;
-    timer.next_ = 0;
-    timer.prev_ = 0;
-  }
-
-  // Determine if the specified absolute time is positive infinity.
-  template <typename Time_Type>
-  static bool is_positive_infinity(const Time_Type&)
-  {
-    return false;
-  }
-
-  // Determine if the specified absolute time is positive infinity.
-  template <typename T, typename TimeSystem>
-  static bool is_positive_infinity(
-      const boost::date_time::base_time<T, TimeSystem>& time)
-  {
-    return time.is_pos_infinity();
-  }
-
-  // Helper function to convert a duration into milliseconds.
-  template <typename Duration>
-  long to_msec(const Duration& d, long max_duration) const
-  {
-    if (d.ticks() <= 0)
-      return 0;
-    int64_t msec = d.total_milliseconds();
-    if (msec == 0)
-      return 1;
-    if (msec > max_duration)
-      return max_duration;
-    return static_cast<long>(msec);
-  }
-
-  // Helper function to convert a duration into microseconds.
-  template <typename Duration>
-  long to_usec(const Duration& d, long max_duration) const
-  {
-    if (d.ticks() <= 0)
-      return 0;
-    int64_t usec = d.total_microseconds();
-    if (usec == 0)
-      return 1;
-    if (usec > max_duration)
-      return max_duration;
-    return static_cast<long>(usec);
-  }
-
-  // The head of a linked list of all active timers.
-  per_timer_data* timers_;
-
-  struct heap_entry
-  {
-    // The time when the timer should fire.
-    time_type time_;
-
-    // The associated timer with enqueued operations.
-    per_timer_data* timer_;
-  };
-
-  // The heap of timers, with the earliest timer at the front.
-  std::vector<heap_entry> heap_;
-};
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // ASIO_DETAIL_TIMER_QUEUE_HPP
diff --git a/lib/asio/detail/timer_queue_base.hpp b/lib/asio/detail/timer_queue_base.hpp
deleted file mode 100644
index 4af995f..0000000
--- a/lib/asio/detail/timer_queue_base.hpp
+++ /dev/null
@@ -1,68 +0,0 @@
-//
-// detail/timer_queue_base.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_TIMER_QUEUE_BASE_HPP
-#define ASIO_DETAIL_TIMER_QUEUE_BASE_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-#include "asio/detail/noncopyable.hpp"
-#include "asio/detail/op_queue.hpp"
-#include "asio/detail/operation.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-class timer_queue_base
-  : private noncopyable
-{
-public:
-  // Constructor.
-  timer_queue_base() : next_(0) {}
-
-  // Destructor.
-  virtual ~timer_queue_base() {}
-
-  // Whether there are no timers in the queue.
-  virtual bool empty() const = 0;
-
-  // Get the time to wait until the next timer.
-  virtual long wait_duration_msec(long max_duration) const = 0;
-
-  // Get the time to wait until the next timer.
-  virtual long wait_duration_usec(long max_duration) const = 0;
-
-  // Dequeue all ready timers.
-  virtual void get_ready_timers(op_queue<operation>& ops) = 0;
-
-  // Dequeue all timers.
-  virtual void get_all_timers(op_queue<operation>& ops) = 0;
-
-private:
-  friend class timer_queue_set;
-
-  // Next timer queue in the set.
-  timer_queue_base* next_;
-};
-
-template <typename Time_Traits>
-class timer_queue;
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // ASIO_DETAIL_TIMER_QUEUE_BASE_HPP
diff --git a/lib/asio/detail/timer_queue_ptime.hpp b/lib/asio/detail/timer_queue_ptime.hpp
deleted file mode 100644
index 84e8338..0000000
--- a/lib/asio/detail/timer_queue_ptime.hpp
+++ /dev/null
@@ -1,99 +0,0 @@
-//
-// detail/timer_queue_ptime.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_TIMER_QUEUE_PTIME_HPP
-#define ASIO_DETAIL_TIMER_QUEUE_PTIME_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-
-#if defined(ASIO_HAS_BOOST_DATE_TIME)
-
-#include "asio/time_traits.hpp"
-#include "asio/detail/timer_queue.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-struct forwarding_posix_time_traits : time_traits<boost::posix_time::ptime> {};
-
-// Template specialisation for the commonly used instantation.
-template <>
-class timer_queue<time_traits<boost::posix_time::ptime> >
-  : public timer_queue_base
-{
-public:
-  // The time type.
-  typedef boost::posix_time::ptime time_type;
-
-  // The duration type.
-  typedef boost::posix_time::time_duration duration_type;
-
-  // Per-timer data.
-  typedef timer_queue<forwarding_posix_time_traits>::per_timer_data
-    per_timer_data;
-
-  // Constructor.
-  ASIO_DECL timer_queue();
-
-  // Destructor.
-  ASIO_DECL virtual ~timer_queue();
-
-  // Add a new timer to the queue. Returns true if this is the timer that is
-  // earliest in the queue, in which case the reactor's event demultiplexing
-  // function call may need to be interrupted and restarted.
-  ASIO_DECL bool enqueue_timer(const time_type& time,
-      per_timer_data& timer, wait_op* op);
-
-  // Whether there are no timers in the queue.
-  ASIO_DECL virtual bool empty() const;
-
-  // Get the time for the timer that is earliest in the queue.
-  ASIO_DECL virtual long wait_duration_msec(long max_duration) const;
-
-  // Get the time for the timer that is earliest in the queue.
-  ASIO_DECL virtual long wait_duration_usec(long max_duration) const;
-
-  // Dequeue all timers not later than the current time.
-  ASIO_DECL virtual void get_ready_timers(op_queue<operation>& ops);
-
-  // Dequeue all timers.
-  ASIO_DECL virtual void get_all_timers(op_queue<operation>& ops);
-
-  // Cancel and dequeue operations for the given timer.
-  ASIO_DECL std::size_t cancel_timer(
-      per_timer_data& timer, op_queue<operation>& ops,
-      std::size_t max_cancelled = (std::numeric_limits<std::size_t>::max)());
-
-  // Move operations from one timer to another, empty timer.
-  ASIO_DECL void move_timer(per_timer_data& target,
-      per_timer_data& source);
-
-private:
-  timer_queue<forwarding_posix_time_traits> impl_;
-};
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#if defined(ASIO_HEADER_ONLY)
-# include "asio/detail/impl/timer_queue_ptime.ipp"
-#endif // defined(ASIO_HEADER_ONLY)
-
-#endif // defined(ASIO_HAS_BOOST_DATE_TIME)
-
-#endif // ASIO_DETAIL_TIMER_QUEUE_PTIME_HPP
diff --git a/lib/asio/detail/timer_queue_set.hpp b/lib/asio/detail/timer_queue_set.hpp
deleted file mode 100644
index 0ea372a..0000000
--- a/lib/asio/detail/timer_queue_set.hpp
+++ /dev/null
@@ -1,66 +0,0 @@
-//
-// detail/timer_queue_set.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_TIMER_QUEUE_SET_HPP
-#define ASIO_DETAIL_TIMER_QUEUE_SET_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-#include "asio/detail/timer_queue_base.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-class timer_queue_set
-{
-public:
-  // Constructor.
-  ASIO_DECL timer_queue_set();
-
-  // Add a timer queue to the set.
-  ASIO_DECL void insert(timer_queue_base* q);
-
-  // Remove a timer queue from the set.
-  ASIO_DECL void erase(timer_queue_base* q);
-
-  // Determine whether all queues are empty.
-  ASIO_DECL bool all_empty() const;
-
-  // Get the wait duration in milliseconds.
-  ASIO_DECL long wait_duration_msec(long max_duration) const;
-
-  // Get the wait duration in microseconds.
-  ASIO_DECL long wait_duration_usec(long max_duration) const;
-
-  // Dequeue all ready timers.
-  ASIO_DECL void get_ready_timers(op_queue<operation>& ops);
-
-  // Dequeue all timers.
-  ASIO_DECL void get_all_timers(op_queue<operation>& ops);
-
-private:
-  timer_queue_base* first_;
-};
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#if defined(ASIO_HEADER_ONLY)
-# include "asio/detail/impl/timer_queue_set.ipp"
-#endif // defined(ASIO_HEADER_ONLY)
-
-#endif // ASIO_DETAIL_TIMER_QUEUE_SET_HPP
diff --git a/lib/asio/detail/timer_scheduler.hpp b/lib/asio/detail/timer_scheduler.hpp
deleted file mode 100644
index b1f8df4..0000000
--- a/lib/asio/detail/timer_scheduler.hpp
+++ /dev/null
@@ -1,35 +0,0 @@
-//
-// detail/timer_scheduler.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_TIMER_SCHEDULER_HPP
-#define ASIO_DETAIL_TIMER_SCHEDULER_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-#include "asio/detail/timer_scheduler_fwd.hpp"
-
-#if defined(ASIO_WINDOWS_RUNTIME)
-# include "asio/detail/winrt_timer_scheduler.hpp"
-#elif defined(ASIO_HAS_IOCP)
-# include "asio/detail/win_iocp_io_context.hpp"
-#elif defined(ASIO_HAS_EPOLL)
-# include "asio/detail/epoll_reactor.hpp"
-#elif defined(ASIO_HAS_KQUEUE)
-# include "asio/detail/kqueue_reactor.hpp"
-#elif defined(ASIO_HAS_DEV_POLL)
-# include "asio/detail/dev_poll_reactor.hpp"
-#else
-# include "asio/detail/select_reactor.hpp"
-#endif
-
-#endif // ASIO_DETAIL_TIMER_SCHEDULER_HPP
diff --git a/lib/asio/detail/timer_scheduler_fwd.hpp b/lib/asio/detail/timer_scheduler_fwd.hpp
deleted file mode 100644
index 80bae50..0000000
--- a/lib/asio/detail/timer_scheduler_fwd.hpp
+++ /dev/null
@@ -1,40 +0,0 @@
-//
-// detail/timer_scheduler_fwd.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_TIMER_SCHEDULER_FWD_HPP
-#define ASIO_DETAIL_TIMER_SCHEDULER_FWD_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-
-namespace asio {
-namespace detail {
-
-#if defined(ASIO_WINDOWS_RUNTIME)
-typedef class winrt_timer_scheduler timer_scheduler;
-#elif defined(ASIO_HAS_IOCP)
-typedef class win_iocp_io_context timer_scheduler;
-#elif defined(ASIO_HAS_EPOLL)
-typedef class epoll_reactor timer_scheduler;
-#elif defined(ASIO_HAS_KQUEUE)
-typedef class kqueue_reactor timer_scheduler;
-#elif defined(ASIO_HAS_DEV_POLL)
-typedef class dev_poll_reactor timer_scheduler;
-#else
-typedef class select_reactor timer_scheduler;
-#endif
-
-} // namespace detail
-} // namespace asio
-
-#endif // ASIO_DETAIL_TIMER_SCHEDULER_FWD_HPP
diff --git a/lib/asio/detail/tss_ptr.hpp b/lib/asio/detail/tss_ptr.hpp
deleted file mode 100644
index e628abe..0000000
--- a/lib/asio/detail/tss_ptr.hpp
+++ /dev/null
@@ -1,69 +0,0 @@
-//
-// detail/tss_ptr.hpp
-// ~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_TSS_PTR_HPP
-#define ASIO_DETAIL_TSS_PTR_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-
-#if !defined(ASIO_HAS_THREADS)
-# include "asio/detail/null_tss_ptr.hpp"
-#elif defined(ASIO_HAS_THREAD_KEYWORD_EXTENSION)
-# include "asio/detail/keyword_tss_ptr.hpp"
-#elif defined(ASIO_WINDOWS)
-# include "asio/detail/win_tss_ptr.hpp"
-#elif defined(ASIO_HAS_PTHREADS)
-# include "asio/detail/posix_tss_ptr.hpp"
-#else
-# error Only Windows and POSIX are supported!
-#endif
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-template <typename T>
-class tss_ptr
-#if !defined(ASIO_HAS_THREADS)
-  : public null_tss_ptr<T>
-#elif defined(ASIO_HAS_THREAD_KEYWORD_EXTENSION)
-  : public keyword_tss_ptr<T>
-#elif defined(ASIO_WINDOWS)
-  : public win_tss_ptr<T>
-#elif defined(ASIO_HAS_PTHREADS)
-  : public posix_tss_ptr<T>
-#endif
-{
-public:
-  void operator=(T* value)
-  {
-#if !defined(ASIO_HAS_THREADS)
-    null_tss_ptr<T>::operator=(value);
-#elif defined(ASIO_HAS_THREAD_KEYWORD_EXTENSION)
-    keyword_tss_ptr<T>::operator=(value);
-#elif defined(ASIO_WINDOWS)
-    win_tss_ptr<T>::operator=(value);
-#elif defined(ASIO_HAS_PTHREADS)
-    posix_tss_ptr<T>::operator=(value);
-#endif
-  }
-};
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // ASIO_DETAIL_TSS_PTR_HPP
diff --git a/lib/asio/detail/type_traits.hpp b/lib/asio/detail/type_traits.hpp
deleted file mode 100644
index edf0928..0000000
--- a/lib/asio/detail/type_traits.hpp
+++ /dev/null
@@ -1,86 +0,0 @@
-//
-// detail/type_traits.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_TYPE_TRAITS_HPP
-#define ASIO_DETAIL_TYPE_TRAITS_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-
-#if defined(ASIO_HAS_STD_TYPE_TRAITS)
-# include <type_traits>
-#else // defined(ASIO_HAS_TYPE_TRAITS)
-# include <boost/type_traits/add_const.hpp>
-# include <boost/type_traits/conditional.hpp>
-# include <boost/type_traits/decay.hpp>
-# include <boost/type_traits/integral_constant.hpp>
-# include <boost/type_traits/is_base_of.hpp>
-# include <boost/type_traits/is_class.hpp>
-# include <boost/type_traits/is_const.hpp>
-# include <boost/type_traits/is_convertible.hpp>
-# include <boost/type_traits/is_function.hpp>
-# include <boost/type_traits/is_same.hpp>
-# include <boost/type_traits/remove_pointer.hpp>
-# include <boost/type_traits/remove_reference.hpp>
-# include <boost/utility/enable_if.hpp>
-# include <boost/utility/result_of.hpp>
-#endif // defined(ASIO_HAS_TYPE_TRAITS)
-
-namespace asio {
-
-#if defined(ASIO_HAS_STD_TYPE_TRAITS)
-using std::add_const;
-using std::conditional;
-using std::decay;
-using std::enable_if;
-using std::false_type;
-using std::integral_constant;
-using std::is_base_of;
-using std::is_class;
-using std::is_const;
-using std::is_convertible;
-using std::is_function;
-using std::is_same;
-using std::remove_pointer;
-using std::remove_reference;
-#if defined(ASIO_HAS_STD_INVOKE_RESULT)
-template <typename> struct result_of;
-template <typename F, typename... Args>
-struct result_of<F(Args...)> : std::invoke_result<F, Args...> {};
-#else // defined(ASIO_HAS_STD_INVOKE_RESULT)
-using std::result_of;
-#endif // defined(ASIO_HAS_STD_INVOKE_RESULT)
-using std::true_type;
-#else // defined(ASIO_HAS_STD_TYPE_TRAITS)
-using boost::add_const;
-template <bool Condition, typename Type = void>
-struct enable_if : boost::enable_if_c<Condition, Type> {};
-using boost::conditional;
-using boost::decay;
-using boost::false_type;
-using boost::integral_constant;
-using boost::is_base_of;
-using boost::is_class;
-using boost::is_const;
-using boost::is_convertible;
-using boost::is_function;
-using boost::is_same;
-using boost::remove_pointer;
-using boost::remove_reference;
-using boost::result_of;
-using boost::true_type;
-#endif // defined(ASIO_HAS_STD_TYPE_TRAITS)
-
-} // namespace asio
-
-#endif // ASIO_DETAIL_TYPE_TRAITS_HPP
diff --git a/lib/asio/detail/variadic_templates.hpp b/lib/asio/detail/variadic_templates.hpp
deleted file mode 100644
index d54eb4e..0000000
--- a/lib/asio/detail/variadic_templates.hpp
+++ /dev/null
@@ -1,119 +0,0 @@
-//
-// detail/variadic_templates.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_VARIADIC_TEMPLATES_HPP
-#define ASIO_DETAIL_VARIADIC_TEMPLATES_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-
-#if !defined(ASIO_HAS_VARIADIC_TEMPLATES)
-
-# define ASIO_VARIADIC_TPARAMS(n) ASIO_VARIADIC_TPARAMS_##n
-
-# define ASIO_VARIADIC_TPARAMS_1 \
-  typename T1
-# define ASIO_VARIADIC_TPARAMS_2 \
-  typename T1, typename T2
-# define ASIO_VARIADIC_TPARAMS_3 \
-  typename T1, typename T2, typename T3
-# define ASIO_VARIADIC_TPARAMS_4 \
-  typename T1, typename T2, typename T3, typename T4
-# define ASIO_VARIADIC_TPARAMS_5 \
-  typename T1, typename T2, typename T3, typename T4, typename T5
-
-# define ASIO_VARIADIC_TARGS(n) ASIO_VARIADIC_TARGS_##n
-
-# define ASIO_VARIADIC_TARGS_1 T1
-# define ASIO_VARIADIC_TARGS_2 T1, T2
-# define ASIO_VARIADIC_TARGS_3 T1, T2, T3
-# define ASIO_VARIADIC_TARGS_4 T1, T2, T3, T4
-# define ASIO_VARIADIC_TARGS_5 T1, T2, T3, T4, T5
-
-# define ASIO_VARIADIC_BYVAL_PARAMS(n) \
-  ASIO_VARIADIC_BYVAL_PARAMS_##n
-
-# define ASIO_VARIADIC_BYVAL_PARAMS_1 T1 x1
-# define ASIO_VARIADIC_BYVAL_PARAMS_2 T1 x1, T2 x2
-# define ASIO_VARIADIC_BYVAL_PARAMS_3 T1 x1, T2 x2, T3 x3
-# define ASIO_VARIADIC_BYVAL_PARAMS_4 T1 x1, T2 x2, T3 x3, T4 x4
-# define ASIO_VARIADIC_BYVAL_PARAMS_5 T1 x1, T2 x2, T3 x3, T4 x4, T5 x5
-
-# define ASIO_VARIADIC_BYVAL_ARGS(n) \
-  ASIO_VARIADIC_BYVAL_ARGS_##n
-
-# define ASIO_VARIADIC_BYVAL_ARGS_1 x1
-# define ASIO_VARIADIC_BYVAL_ARGS_2 x1, x2
-# define ASIO_VARIADIC_BYVAL_ARGS_3 x1, x2, x3
-# define ASIO_VARIADIC_BYVAL_ARGS_4 x1, x2, x3, x4
-# define ASIO_VARIADIC_BYVAL_ARGS_5 x1, x2, x3, x4, x5
-
-# define ASIO_VARIADIC_MOVE_PARAMS(n) \
-  ASIO_VARIADIC_MOVE_PARAMS_##n
-
-# define ASIO_VARIADIC_MOVE_PARAMS_1 \
-  ASIO_MOVE_ARG(T1) x1
-# define ASIO_VARIADIC_MOVE_PARAMS_2 \
-  ASIO_MOVE_ARG(T1) x1, ASIO_MOVE_ARG(T2) x2
-# define ASIO_VARIADIC_MOVE_PARAMS_3 \
-  ASIO_MOVE_ARG(T1) x1, ASIO_MOVE_ARG(T2) x2, \
-  ASIO_MOVE_ARG(T3) x3
-# define ASIO_VARIADIC_MOVE_PARAMS_4 \
-  ASIO_MOVE_ARG(T1) x1, ASIO_MOVE_ARG(T2) x2, \
-  ASIO_MOVE_ARG(T3) x3, ASIO_MOVE_ARG(T4) x4
-# define ASIO_VARIADIC_MOVE_PARAMS_5 \
-  ASIO_MOVE_ARG(T1) x1, ASIO_MOVE_ARG(T2) x2, \
-  ASIO_MOVE_ARG(T3) x3, ASIO_MOVE_ARG(T4) x4, \
-  ASIO_MOVE_ARG(T5) x5
-
-# define ASIO_VARIADIC_MOVE_ARGS(n) \
-  ASIO_VARIADIC_MOVE_ARGS_##n
-
-# define ASIO_VARIADIC_MOVE_ARGS_1 \
-  ASIO_MOVE_CAST(T1)(x1)
-# define ASIO_VARIADIC_MOVE_ARGS_2 \
-  ASIO_MOVE_CAST(T1)(x1), ASIO_MOVE_CAST(T2)(x2)
-# define ASIO_VARIADIC_MOVE_ARGS_3 \
-  ASIO_MOVE_CAST(T1)(x1), ASIO_MOVE_CAST(T2)(x2), \
-  ASIO_MOVE_CAST(T3)(x3)
-# define ASIO_VARIADIC_MOVE_ARGS_4 \
-  ASIO_MOVE_CAST(T1)(x1), ASIO_MOVE_CAST(T2)(x2), \
-  ASIO_MOVE_CAST(T3)(x3), ASIO_MOVE_CAST(T4)(x4)
-# define ASIO_VARIADIC_MOVE_ARGS_5 \
-  ASIO_MOVE_CAST(T1)(x1), ASIO_MOVE_CAST(T2)(x2), \
-  ASIO_MOVE_CAST(T3)(x3), ASIO_MOVE_CAST(T4)(x4), \
-  ASIO_MOVE_CAST(T5)(x5)
-
-# define ASIO_VARIADIC_DECAY(n) \
-  ASIO_VARIADIC_DECAY_##n
-
-# define ASIO_VARIADIC_DECAY_1 \
-  typename decay<T1>::type
-# define ASIO_VARIADIC_DECAY_2 \
-  typename decay<T1>::type, typename decay<T2>::type
-# define ASIO_VARIADIC_DECAY_3 \
-  typename decay<T1>::type, typename decay<T2>::type, \
-  typename decay<T3>::type
-# define ASIO_VARIADIC_DECAY_4 \
-  typename decay<T1>::type, typename decay<T2>::type, \
-  typename decay<T3>::type, typename decay<T4>::type
-# define ASIO_VARIADIC_DECAY_5 \
-  typename decay<T1>::type, typename decay<T2>::type, \
-  typename decay<T3>::type, typename decay<T4>::type, \
-  typename decay<T5>::type
-
-# define ASIO_VARIADIC_GENERATE(m) m(1) m(2) m(3) m(4) m(5)
-
-#endif // !defined(ASIO_HAS_VARIADIC_TEMPLATES)
-
-#endif // ASIO_DETAIL_VARIADIC_TEMPLATES_HPP
diff --git a/lib/asio/detail/wait_handler.hpp b/lib/asio/detail/wait_handler.hpp
deleted file mode 100644
index bd3dc24..0000000
--- a/lib/asio/detail/wait_handler.hpp
+++ /dev/null
@@ -1,85 +0,0 @@
-//
-// detail/wait_handler.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_WAIT_HANDLER_HPP
-#define ASIO_DETAIL_WAIT_HANDLER_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-#include "asio/detail/fenced_block.hpp"
-#include "asio/detail/handler_alloc_helpers.hpp"
-#include "asio/detail/handler_invoke_helpers.hpp"
-#include "asio/detail/memory.hpp"
-#include "asio/detail/wait_op.hpp"
-#include "asio/io_context.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-template <typename Handler>
-class wait_handler : public wait_op
-{
-public:
-  ASIO_DEFINE_HANDLER_PTR(wait_handler);
-
-  wait_handler(Handler& h)
-    : wait_op(&wait_handler::do_complete),
-      handler_(ASIO_MOVE_CAST(Handler)(h))
-  {
-    handler_work<Handler>::start(handler_);
-  }
-
-  static void do_complete(void* owner, operation* base,
-      const asio::error_code& /*ec*/,
-      std::size_t /*bytes_transferred*/)
-  {
-    // Take ownership of the handler object.
-    wait_handler* h(static_cast<wait_handler*>(base));
-    ptr p = { asio::detail::addressof(h->handler_), h, h };
-    handler_work<Handler> w(h->handler_);
-
-    ASIO_HANDLER_COMPLETION((*h));
-
-    // Make a copy of the handler so that the memory can be deallocated before
-    // the upcall is made. Even if we're not about to make an upcall, a
-    // sub-object of the handler may be the true owner of the memory associated
-    // with the handler. Consequently, a local copy of the handler is required
-    // to ensure that any owning sub-object remains valid until after we have
-    // deallocated the memory here.
-    detail::binder1<Handler, asio::error_code>
-      handler(h->handler_, h->ec_);
-    p.h = asio::detail::addressof(handler.handler_);
-    p.reset();
-
-    // Make the upcall if required.
-    if (owner)
-    {
-      fenced_block b(fenced_block::half);
-      ASIO_HANDLER_INVOCATION_BEGIN((handler.arg1_));
-      w.complete(handler, handler.handler_);
-      ASIO_HANDLER_INVOCATION_END;
-    }
-  }
-
-private:
-  Handler handler_;
-};
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // ASIO_DETAIL_WAIT_HANDLER_HPP
diff --git a/lib/asio/detail/wait_op.hpp b/lib/asio/detail/wait_op.hpp
deleted file mode 100644
index 1a3017b..0000000
--- a/lib/asio/detail/wait_op.hpp
+++ /dev/null
@@ -1,45 +0,0 @@
-//
-// detail/wait_op.hpp
-// ~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_WAIT_OP_HPP
-#define ASIO_DETAIL_WAIT_OP_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-#include "asio/detail/operation.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-class wait_op
-  : public operation
-{
-public:
-  // The error code to be passed to the completion handler.
-  asio::error_code ec_;
-
-protected:
-  wait_op(func_type func)
-    : operation(func)
-  {
-  }
-};
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // ASIO_DETAIL_WAIT_OP_HPP
diff --git a/lib/asio/detail/win_event.hpp b/lib/asio/detail/win_event.hpp
deleted file mode 100644
index 859cdee..0000000
--- a/lib/asio/detail/win_event.hpp
+++ /dev/null
@@ -1,151 +0,0 @@
-//
-// detail/win_event.hpp
-// ~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_WIN_EVENT_HPP
-#define ASIO_DETAIL_WIN_EVENT_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-
-#if defined(ASIO_WINDOWS)
-
-#include "asio/detail/assert.hpp"
-#include "asio/detail/noncopyable.hpp"
-#include "asio/detail/socket_types.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-class win_event
-  : private noncopyable
-{
-public:
-  // Constructor.
-  ASIO_DECL win_event();
-
-  // Destructor.
-  ASIO_DECL ~win_event();
-
-  // Signal the event. (Retained for backward compatibility.)
-  template <typename Lock>
-  void signal(Lock& lock)
-  {
-    this->signal_all(lock);
-  }
-
-  // Signal all waiters.
-  template <typename Lock>
-  void signal_all(Lock& lock)
-  {
-    ASIO_ASSERT(lock.locked());
-    (void)lock;
-    state_ |= 1;
-    ::SetEvent(events_[0]);
-  }
-
-  // Unlock the mutex and signal one waiter.
-  template <typename Lock>
-  void unlock_and_signal_one(Lock& lock)
-  {
-    ASIO_ASSERT(lock.locked());
-    state_ |= 1;
-    bool have_waiters = (state_ > 1);
-    lock.unlock();
-    if (have_waiters)
-      ::SetEvent(events_[1]);
-  }
-
-  // If there's a waiter, unlock the mutex and signal it.
-  template <typename Lock>
-  bool maybe_unlock_and_signal_one(Lock& lock)
-  {
-    ASIO_ASSERT(lock.locked());
-    state_ |= 1;
-    if (state_ > 1)
-    {
-      lock.unlock();
-      ::SetEvent(events_[1]);
-      return true;
-    }
-    return false;
-  }
-
-  // Reset the event.
-  template <typename Lock>
-  void clear(Lock& lock)
-  {
-    ASIO_ASSERT(lock.locked());
-    (void)lock;
-    ::ResetEvent(events_[0]);
-    state_ &= ~std::size_t(1);
-  }
-
-  // Wait for the event to become signalled.
-  template <typename Lock>
-  void wait(Lock& lock)
-  {
-    ASIO_ASSERT(lock.locked());
-    while ((state_ & 1) == 0)
-    {
-      state_ += 2;
-      lock.unlock();
-#if defined(ASIO_WINDOWS_APP)
-      ::WaitForMultipleObjectsEx(2, events_, false, INFINITE, false);
-#else // defined(ASIO_WINDOWS_APP)
-      ::WaitForMultipleObjects(2, events_, false, INFINITE);
-#endif // defined(ASIO_WINDOWS_APP)
-      lock.lock();
-      state_ -= 2;
-    }
-  }
-
-  // Timed wait for the event to become signalled.
-  template <typename Lock>
-  bool wait_for_usec(Lock& lock, long usec)
-  {
-    ASIO_ASSERT(lock.locked());
-    if ((state_ & 1) == 0)
-    {
-      state_ += 2;
-      lock.unlock();
-      DWORD msec = usec > 0 ? (usec < 1000 ? 1 : usec / 1000) : 0;
-#if defined(ASIO_WINDOWS_APP)
-      ::WaitForMultipleObjectsEx(2, events_, false, msec, false);
-#else // defined(ASIO_WINDOWS_APP)
-      ::WaitForMultipleObjects(2, events_, false, msec);
-#endif // defined(ASIO_WINDOWS_APP)
-      lock.lock();
-      state_ -= 2;
-    }
-    return (state_ & 1) != 0;
-  }
-
-private:
-  HANDLE events_[2];
-  std::size_t state_;
-};
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#if defined(ASIO_HEADER_ONLY)
-# include "asio/detail/impl/win_event.ipp"
-#endif // defined(ASIO_HEADER_ONLY)
-
-#endif // defined(ASIO_WINDOWS)
-
-#endif // ASIO_DETAIL_WIN_EVENT_HPP
diff --git a/lib/asio/detail/win_fd_set_adapter.hpp b/lib/asio/detail/win_fd_set_adapter.hpp
deleted file mode 100644
index 8d5e700..0000000
--- a/lib/asio/detail/win_fd_set_adapter.hpp
+++ /dev/null
@@ -1,149 +0,0 @@
-//
-// detail/win_fd_set_adapter.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_WIN_FD_SET_ADAPTER_HPP
-#define ASIO_DETAIL_WIN_FD_SET_ADAPTER_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-
-#if defined(ASIO_WINDOWS) || defined(__CYGWIN__)
-
-#include "asio/detail/noncopyable.hpp"
-#include "asio/detail/reactor_op_queue.hpp"
-#include "asio/detail/socket_types.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-// Adapts the FD_SET type to meet the Descriptor_Set concept's requirements.
-class win_fd_set_adapter : noncopyable
-{
-public:
-  enum { default_fd_set_size = 1024 };
-
-  win_fd_set_adapter()
-    : capacity_(default_fd_set_size),
-      max_descriptor_(invalid_socket)
-  {
-    fd_set_ = static_cast<win_fd_set*>(::operator new(
-          sizeof(win_fd_set) - sizeof(SOCKET)
-          + sizeof(SOCKET) * (capacity_)));
-    fd_set_->fd_count = 0;
-  }
-
-  ~win_fd_set_adapter()
-  {
-    ::operator delete(fd_set_);
-  }
-
-  void reset()
-  {
-    fd_set_->fd_count = 0;
-    max_descriptor_ = invalid_socket;
-  }
-
-  bool set(socket_type descriptor)
-  {
-    for (u_int i = 0; i < fd_set_->fd_count; ++i)
-      if (fd_set_->fd_array[i] == descriptor)
-        return true;
-
-    reserve(fd_set_->fd_count + 1);
-    fd_set_->fd_array[fd_set_->fd_count++] = descriptor;
-    return true;
-  }
-
-  void set(reactor_op_queue<socket_type>& operations, op_queue<operation>&)
-  {
-    reactor_op_queue<socket_type>::iterator i = operations.begin();
-    while (i != operations.end())
-    {
-      reactor_op_queue<socket_type>::iterator op_iter = i++;
-      reserve(fd_set_->fd_count + 1);
-      fd_set_->fd_array[fd_set_->fd_count++] = op_iter->first;
-    }
-  }
-
-  bool is_set(socket_type descriptor) const
-  {
-    return !!__WSAFDIsSet(descriptor,
-        const_cast<fd_set*>(reinterpret_cast<const fd_set*>(fd_set_)));
-  }
-
-  operator fd_set*()
-  {
-    return reinterpret_cast<fd_set*>(fd_set_);
-  }
-
-  socket_type max_descriptor() const
-  {
-    return max_descriptor_;
-  }
-
-  void perform(reactor_op_queue<socket_type>& operations,
-      op_queue<operation>& ops) const
-  {
-    for (u_int i = 0; i < fd_set_->fd_count; ++i)
-      operations.perform_operations(fd_set_->fd_array[i], ops);
-  }
-
-private:
-  // This structure is defined to be compatible with the Windows API fd_set
-  // structure, but without being dependent on the value of FD_SETSIZE. We use
-  // the "struct hack" to allow the number of descriptors to be varied at
-  // runtime.
-  struct win_fd_set
-  {
-    u_int fd_count;
-    SOCKET fd_array[1];
-  };
-
-  // Increase the fd_set_ capacity to at least the specified number of elements.
-  void reserve(u_int n)
-  {
-    if (n <= capacity_)
-      return;
-
-    u_int new_capacity = capacity_ + capacity_ / 2;
-    if (new_capacity < n)
-      new_capacity = n;
-
-    win_fd_set* new_fd_set = static_cast<win_fd_set*>(::operator new(
-          sizeof(win_fd_set) - sizeof(SOCKET)
-          + sizeof(SOCKET) * (new_capacity)));
-
-    new_fd_set->fd_count = fd_set_->fd_count;
-    for (u_int i = 0; i < fd_set_->fd_count; ++i)
-      new_fd_set->fd_array[i] = fd_set_->fd_array[i];
-
-    ::operator delete(fd_set_);
-    fd_set_ = new_fd_set;
-    capacity_ = new_capacity;
-  }
-
-  win_fd_set* fd_set_;
-  u_int capacity_;
-  socket_type max_descriptor_;
-};
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // defined(ASIO_WINDOWS) || defined(__CYGWIN__)
-
-#endif // ASIO_DETAIL_WIN_FD_SET_ADAPTER_HPP
diff --git a/lib/asio/detail/win_fenced_block.hpp b/lib/asio/detail/win_fenced_block.hpp
deleted file mode 100644
index 1ce6e13..0000000
--- a/lib/asio/detail/win_fenced_block.hpp
+++ /dev/null
@@ -1,90 +0,0 @@
-//
-// detail/win_fenced_block.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_WIN_FENCED_BLOCK_HPP
-#define ASIO_DETAIL_WIN_FENCED_BLOCK_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-
-#if defined(ASIO_WINDOWS) && !defined(UNDER_CE)
-
-#include "asio/detail/socket_types.hpp"
-#include "asio/detail/noncopyable.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-class win_fenced_block
-  : private noncopyable
-{
-public:
-  enum half_t { half };
-  enum full_t { full };
-
-  // Constructor for a half fenced block.
-  explicit win_fenced_block(half_t)
-  {
-  }
-
-  // Constructor for a full fenced block.
-  explicit win_fenced_block(full_t)
-  {
-#if defined(__BORLANDC__)
-    LONG barrier = 0;
-    ::InterlockedExchange(&barrier, 1);
-#elif defined(ASIO_MSVC) \
-  && ((ASIO_MSVC < 1400) || !defined(MemoryBarrier))
-# if defined(_M_IX86)
-#  pragma warning(push)
-#  pragma warning(disable:4793)
-    LONG barrier;
-    __asm { xchg barrier, eax }
-#  pragma warning(pop)
-# endif // defined(_M_IX86)
-#else
-    MemoryBarrier();
-#endif
-  }
-
-  // Destructor.
-  ~win_fenced_block()
-  {
-#if defined(__BORLANDC__)
-    LONG barrier = 0;
-    ::InterlockedExchange(&barrier, 1);
-#elif defined(ASIO_MSVC) \
-  && ((ASIO_MSVC < 1400) || !defined(MemoryBarrier))
-# if defined(_M_IX86)
-#  pragma warning(push)
-#  pragma warning(disable:4793)
-    LONG barrier;
-    __asm { xchg barrier, eax }
-#  pragma warning(pop)
-# endif // defined(_M_IX86)
-#else
-    MemoryBarrier();
-#endif
-  }
-};
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // defined(ASIO_WINDOWS) && !defined(UNDER_CE)
-
-#endif // ASIO_DETAIL_WIN_FENCED_BLOCK_HPP
diff --git a/lib/asio/detail/win_global.hpp b/lib/asio/detail/win_global.hpp
deleted file mode 100644
index 3b15a32..0000000
--- a/lib/asio/detail/win_global.hpp
+++ /dev/null
@@ -1,73 +0,0 @@
-//
-// detail/win_global.hpp
-// ~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_WIN_GLOBAL_HPP
-#define ASIO_DETAIL_WIN_GLOBAL_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-#include "asio/detail/static_mutex.hpp"
-#include "asio/detail/tss_ptr.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-template <typename T>
-struct win_global_impl
-{
-  // Destructor automatically cleans up the global.
-  ~win_global_impl()
-  {
-    delete ptr_;
-  }
-
-  static win_global_impl instance_;
-  static static_mutex mutex_;
-  static T* ptr_;
-  static tss_ptr<T> tss_ptr_;
-};
-
-template <typename T>
-win_global_impl<T> win_global_impl<T>::instance_ = { 0 };
-
-template <typename T>
-static_mutex win_global_impl<T>::mutex_ = ASIO_STATIC_MUTEX_INIT;
-
-template <typename T>
-T* win_global_impl<T>::ptr_ = 0;
-
-template <typename T>
-tss_ptr<T> win_global_impl<T>::tss_ptr_;
-
-template <typename T>
-T& win_global()
-{
-  if (static_cast<T*>(win_global_impl<T>::tss_ptr_) == 0)
-  {
-    win_global_impl<T>::mutex_.init();
-    static_mutex::scoped_lock lock(win_global_impl<T>::mutex_);
-    win_global_impl<T>::ptr_ = new T;
-    win_global_impl<T>::tss_ptr_ = win_global_impl<T>::ptr_;
-  }
-
-  return *win_global_impl<T>::tss_ptr_;
-}
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // ASIO_DETAIL_WIN_GLOBAL_HPP
diff --git a/lib/asio/detail/win_iocp_handle_read_op.hpp b/lib/asio/detail/win_iocp_handle_read_op.hpp
deleted file mode 100644
index 88e3f6c..0000000
--- a/lib/asio/detail/win_iocp_handle_read_op.hpp
+++ /dev/null
@@ -1,111 +0,0 @@
-//
-// detail/win_iocp_handle_read_op.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-// Copyright (c) 2008 Rep Invariant Systems, Inc. (info@repinvariant.com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_WIN_IOCP_HANDLE_READ_OP_HPP
-#define ASIO_DETAIL_WIN_IOCP_HANDLE_READ_OP_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-
-#if defined(ASIO_HAS_IOCP)
-
-#include "asio/error.hpp"
-#include "asio/detail/bind_handler.hpp"
-#include "asio/detail/buffer_sequence_adapter.hpp"
-#include "asio/detail/fenced_block.hpp"
-#include "asio/detail/handler_alloc_helpers.hpp"
-#include "asio/detail/handler_invoke_helpers.hpp"
-#include "asio/detail/memory.hpp"
-#include "asio/detail/operation.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-template <typename MutableBufferSequence, typename Handler>
-class win_iocp_handle_read_op : public operation
-{
-public:
-  ASIO_DEFINE_HANDLER_PTR(win_iocp_handle_read_op);
-
-  win_iocp_handle_read_op(
-      const MutableBufferSequence& buffers, Handler& handler)
-    : operation(&win_iocp_handle_read_op::do_complete),
-      buffers_(buffers),
-      handler_(ASIO_MOVE_CAST(Handler)(handler))
-  {
-    handler_work<Handler>::start(handler_);
-  }
-
-  static void do_complete(void* owner, operation* base,
-      const asio::error_code& result_ec,
-      std::size_t bytes_transferred)
-  {
-    asio::error_code ec(result_ec);
-
-    // Take ownership of the operation object.
-    win_iocp_handle_read_op* o(static_cast<win_iocp_handle_read_op*>(base));
-    ptr p = { asio::detail::addressof(o->handler_), o, o };
-    handler_work<Handler> w(o->handler_);
-
-    ASIO_HANDLER_COMPLETION((*o));
-
-#if defined(ASIO_ENABLE_BUFFER_DEBUGGING)
-    if (owner)
-    {
-      // Check whether buffers are still valid.
-      buffer_sequence_adapter<asio::mutable_buffer,
-          MutableBufferSequence>::validate(o->buffers_);
-    }
-#endif // defined(ASIO_ENABLE_BUFFER_DEBUGGING)
-
-    // Map non-portable errors to their portable counterparts.
-    if (ec.value() == ERROR_HANDLE_EOF)
-      ec = asio::error::eof;
-
-    // Make a copy of the handler so that the memory can be deallocated before
-    // the upcall is made. Even if we're not about to make an upcall, a
-    // sub-object of the handler may be the true owner of the memory associated
-    // with the handler. Consequently, a local copy of the handler is required
-    // to ensure that any owning sub-object remains valid until after we have
-    // deallocated the memory here.
-    detail::binder2<Handler, asio::error_code, std::size_t>
-      handler(o->handler_, ec, bytes_transferred);
-    p.h = asio::detail::addressof(handler.handler_);
-    p.reset();
-
-    // Make the upcall if required.
-    if (owner)
-    {
-      fenced_block b(fenced_block::half);
-      ASIO_HANDLER_INVOCATION_BEGIN((handler.arg1_, handler.arg2_));
-      w.complete(handler, handler.handler_);
-      ASIO_HANDLER_INVOCATION_END;
-    }
-  }
-
-private:
-  MutableBufferSequence buffers_;
-  Handler handler_;
-};
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // defined(ASIO_HAS_IOCP)
-
-#endif // ASIO_DETAIL_WIN_IOCP_HANDLE_READ_OP_HPP
diff --git a/lib/asio/detail/win_iocp_handle_service.hpp b/lib/asio/detail/win_iocp_handle_service.hpp
deleted file mode 100644
index 849fe8f..0000000
--- a/lib/asio/detail/win_iocp_handle_service.hpp
+++ /dev/null
@@ -1,323 +0,0 @@
-//
-// detail/win_iocp_handle_service.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-// Copyright (c) 2008 Rep Invariant Systems, Inc. (info@repinvariant.com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_WIN_IOCP_HANDLE_SERVICE_HPP
-#define ASIO_DETAIL_WIN_IOCP_HANDLE_SERVICE_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-
-#if defined(ASIO_HAS_IOCP)
-
-#include "asio/error.hpp"
-#include "asio/io_context.hpp"
-#include "asio/detail/buffer_sequence_adapter.hpp"
-#include "asio/detail/cstdint.hpp"
-#include "asio/detail/handler_alloc_helpers.hpp"
-#include "asio/detail/memory.hpp"
-#include "asio/detail/mutex.hpp"
-#include "asio/detail/operation.hpp"
-#include "asio/detail/win_iocp_handle_read_op.hpp"
-#include "asio/detail/win_iocp_handle_write_op.hpp"
-#include "asio/detail/win_iocp_io_context.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-class win_iocp_handle_service :
-  public service_base<win_iocp_handle_service>
-{
-public:
-  // The native type of a stream handle.
-  typedef HANDLE native_handle_type;
-
-  // The implementation type of the stream handle.
-  class implementation_type
-  {
-  public:
-    // Default constructor.
-    implementation_type()
-      : handle_(INVALID_HANDLE_VALUE),
-        safe_cancellation_thread_id_(0),
-        next_(0),
-        prev_(0)
-    {
-    }
-
-  private:
-    // Only this service will have access to the internal values.
-    friend class win_iocp_handle_service;
-
-    // The native stream handle representation.
-    native_handle_type handle_;
-
-    // The ID of the thread from which it is safe to cancel asynchronous
-    // operations. 0 means no asynchronous operations have been started yet.
-    // ~0 means asynchronous operations have been started from more than one
-    // thread, and cancellation is not supported for the handle.
-    DWORD safe_cancellation_thread_id_;
-
-    // Pointers to adjacent handle implementations in linked list.
-    implementation_type* next_;
-    implementation_type* prev_;
-  };
-
-  ASIO_DECL win_iocp_handle_service(asio::io_context& io_context);
-
-  // Destroy all user-defined handler objects owned by the service.
-  ASIO_DECL void shutdown();
-
-  // Construct a new handle implementation.
-  ASIO_DECL void construct(implementation_type& impl);
-
-  // Move-construct a new handle implementation.
-  ASIO_DECL void move_construct(implementation_type& impl,
-      implementation_type& other_impl);
-
-  // Move-assign from another handle implementation.
-  ASIO_DECL void move_assign(implementation_type& impl,
-      win_iocp_handle_service& other_service,
-      implementation_type& other_impl);
-
-  // Destroy a handle implementation.
-  ASIO_DECL void destroy(implementation_type& impl);
-
-  // Assign a native handle to a handle implementation.
-  ASIO_DECL asio::error_code assign(implementation_type& impl,
-      const native_handle_type& handle, asio::error_code& ec);
-
-  // Determine whether the handle is open.
-  bool is_open(const implementation_type& impl) const
-  {
-    return impl.handle_ != INVALID_HANDLE_VALUE;
-  }
-
-  // Destroy a handle implementation.
-  ASIO_DECL asio::error_code close(implementation_type& impl,
-      asio::error_code& ec);
-
-  // Get the native handle representation.
-  native_handle_type native_handle(const implementation_type& impl) const
-  {
-    return impl.handle_;
-  }
-
-  // Cancel all operations associated with the handle.
-  ASIO_DECL asio::error_code cancel(implementation_type& impl,
-      asio::error_code& ec);
-
-  // Write the given data. Returns the number of bytes written.
-  template <typename ConstBufferSequence>
-  size_t write_some(implementation_type& impl,
-      const ConstBufferSequence& buffers, asio::error_code& ec)
-  {
-    return write_some_at(impl, 0, buffers, ec);
-  }
-
-  // Write the given data at the specified offset. Returns the number of bytes
-  // written.
-  template <typename ConstBufferSequence>
-  size_t write_some_at(implementation_type& impl, uint64_t offset,
-      const ConstBufferSequence& buffers, asio::error_code& ec)
-  {
-    asio::const_buffer buffer =
-      buffer_sequence_adapter<asio::const_buffer,
-        ConstBufferSequence>::first(buffers);
-
-    return do_write(impl, offset, buffer, ec);
-  }
-
-  // Start an asynchronous write. The data being written must be valid for the
-  // lifetime of the asynchronous operation.
-  template <typename ConstBufferSequence, typename Handler>
-  void async_write_some(implementation_type& impl,
-      const ConstBufferSequence& buffers, Handler& handler)
-  {
-    // Allocate and construct an operation to wrap the handler.
-    typedef win_iocp_handle_write_op<ConstBufferSequence, Handler> op;
-    typename op::ptr p = { asio::detail::addressof(handler),
-      op::ptr::allocate(handler), 0 };
-    p.p = new (p.v) op(buffers, handler);
-
-    ASIO_HANDLER_CREATION((iocp_service_.context(), *p.p, "handle", &impl,
-          reinterpret_cast<uintmax_t>(impl.handle_), "async_write_some"));
-
-    start_write_op(impl, 0,
-        buffer_sequence_adapter<asio::const_buffer,
-          ConstBufferSequence>::first(buffers), p.p);
-    p.v = p.p = 0;
-  }
-
-  // Start an asynchronous write at a specified offset. The data being written
-  // must be valid for the lifetime of the asynchronous operation.
-  template <typename ConstBufferSequence, typename Handler>
-  void async_write_some_at(implementation_type& impl, uint64_t offset,
-      const ConstBufferSequence& buffers, Handler& handler)
-  {
-    // Allocate and construct an operation to wrap the handler.
-    typedef win_iocp_handle_write_op<ConstBufferSequence, Handler> op;
-    typename op::ptr p = { asio::detail::addressof(handler),
-      op::ptr::allocate(handler), 0 };
-    p.p = new (p.v) op(buffers, handler);
-
-    ASIO_HANDLER_CREATION((iocp_service_.context(), *p.p, "handle", &impl,
-          reinterpret_cast<uintmax_t>(impl.handle_), "async_write_some_at"));
-
-    start_write_op(impl, offset,
-        buffer_sequence_adapter<asio::const_buffer,
-          ConstBufferSequence>::first(buffers), p.p);
-    p.v = p.p = 0;
-  }
-
-  // Read some data. Returns the number of bytes received.
-  template <typename MutableBufferSequence>
-  size_t read_some(implementation_type& impl,
-      const MutableBufferSequence& buffers, asio::error_code& ec)
-  {
-    return read_some_at(impl, 0, buffers, ec);
-  }
-
-  // Read some data at a specified offset. Returns the number of bytes received.
-  template <typename MutableBufferSequence>
-  size_t read_some_at(implementation_type& impl, uint64_t offset,
-      const MutableBufferSequence& buffers, asio::error_code& ec)
-  {
-    asio::mutable_buffer buffer =
-      buffer_sequence_adapter<asio::mutable_buffer,
-        MutableBufferSequence>::first(buffers);
-
-    return do_read(impl, offset, buffer, ec);
-  }
-
-  // Start an asynchronous read. The buffer for the data being received must be
-  // valid for the lifetime of the asynchronous operation.
-  template <typename MutableBufferSequence, typename Handler>
-  void async_read_some(implementation_type& impl,
-      const MutableBufferSequence& buffers, Handler& handler)
-  {
-    // Allocate and construct an operation to wrap the handler.
-    typedef win_iocp_handle_read_op<MutableBufferSequence, Handler> op;
-    typename op::ptr p = { asio::detail::addressof(handler),
-      op::ptr::allocate(handler), 0 };
-    p.p = new (p.v) op(buffers, handler);
-
-    ASIO_HANDLER_CREATION((iocp_service_.context(), *p.p, "handle", &impl,
-          reinterpret_cast<uintmax_t>(impl.handle_), "async_read_some"));
-
-    start_read_op(impl, 0,
-        buffer_sequence_adapter<asio::mutable_buffer,
-          MutableBufferSequence>::first(buffers), p.p);
-    p.v = p.p = 0;
-  }
-
-  // Start an asynchronous read at a specified offset. The buffer for the data
-  // being received must be valid for the lifetime of the asynchronous
-  // operation.
-  template <typename MutableBufferSequence, typename Handler>
-  void async_read_some_at(implementation_type& impl, uint64_t offset,
-      const MutableBufferSequence& buffers, Handler& handler)
-  {
-    // Allocate and construct an operation to wrap the handler.
-    typedef win_iocp_handle_read_op<MutableBufferSequence, Handler> op;
-    typename op::ptr p = { asio::detail::addressof(handler),
-      op::ptr::allocate(handler), 0 };
-    p.p = new (p.v) op(buffers, handler);
-
-    ASIO_HANDLER_CREATION((iocp_service_.context(), *p.p, "handle", &impl,
-          reinterpret_cast<uintmax_t>(impl.handle_), "async_read_some_at"));
-
-    start_read_op(impl, offset,
-        buffer_sequence_adapter<asio::mutable_buffer,
-          MutableBufferSequence>::first(buffers), p.p);
-    p.v = p.p = 0;
-  }
-
-private:
-  // Prevent the use of the null_buffers type with this service.
-  size_t write_some(implementation_type& impl,
-      const null_buffers& buffers, asio::error_code& ec);
-  size_t write_some_at(implementation_type& impl, uint64_t offset,
-      const null_buffers& buffers, asio::error_code& ec);
-  template <typename Handler>
-  void async_write_some(implementation_type& impl,
-      const null_buffers& buffers, Handler& handler);
-  template <typename Handler>
-  void async_write_some_at(implementation_type& impl, uint64_t offset,
-      const null_buffers& buffers, Handler& handler);
-  size_t read_some(implementation_type& impl,
-      const null_buffers& buffers, asio::error_code& ec);
-  size_t read_some_at(implementation_type& impl, uint64_t offset,
-      const null_buffers& buffers, asio::error_code& ec);
-  template <typename Handler>
-  void async_read_some(implementation_type& impl,
-      const null_buffers& buffers, Handler& handler);
-  template <typename Handler>
-  void async_read_some_at(implementation_type& impl, uint64_t offset,
-      const null_buffers& buffers, Handler& handler);
-
-  // Helper class for waiting for synchronous operations to complete.
-  class overlapped_wrapper;
-
-  // Helper function to perform a synchronous write operation.
-  ASIO_DECL size_t do_write(implementation_type& impl,
-      uint64_t offset, const asio::const_buffer& buffer,
-      asio::error_code& ec);
-
-  // Helper function to start a write operation.
-  ASIO_DECL void start_write_op(implementation_type& impl,
-      uint64_t offset, const asio::const_buffer& buffer,
-      operation* op);
-
-  // Helper function to perform a synchronous write operation.
-  ASIO_DECL size_t do_read(implementation_type& impl,
-      uint64_t offset, const asio::mutable_buffer& buffer,
-      asio::error_code& ec);
-
-  // Helper function to start a read operation.
-  ASIO_DECL void start_read_op(implementation_type& impl,
-      uint64_t offset, const asio::mutable_buffer& buffer,
-      operation* op);
-
-  // Update the ID of the thread from which cancellation is safe.
-  ASIO_DECL void update_cancellation_thread_id(implementation_type& impl);
-
-  // Helper function to close a handle when the associated object is being
-  // destroyed.
-  ASIO_DECL void close_for_destruction(implementation_type& impl);
-
-  // The IOCP service used for running asynchronous operations and dispatching
-  // handlers.
-  win_iocp_io_context& iocp_service_;
-
-  // Mutex to protect access to the linked list of implementations.
-  mutex mutex_;
-
-  // The head of a linked list of all implementations.
-  implementation_type* impl_list_;
-};
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#if defined(ASIO_HEADER_ONLY)
-# include "asio/detail/impl/win_iocp_handle_service.ipp"
-#endif // defined(ASIO_HEADER_ONLY)
-
-#endif // defined(ASIO_HAS_IOCP)
-
-#endif // ASIO_DETAIL_WIN_IOCP_HANDLE_SERVICE_HPP
diff --git a/lib/asio/detail/win_iocp_handle_write_op.hpp b/lib/asio/detail/win_iocp_handle_write_op.hpp
deleted file mode 100644
index d7bb944..0000000
--- a/lib/asio/detail/win_iocp_handle_write_op.hpp
+++ /dev/null
@@ -1,103 +0,0 @@
-//
-// detail/win_iocp_handle_write_op.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-// Copyright (c) 2008 Rep Invariant Systems, Inc. (info@repinvariant.com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_WIN_IOCP_HANDLE_WRITE_OP_HPP
-#define ASIO_DETAIL_WIN_IOCP_HANDLE_WRITE_OP_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-
-#if defined(ASIO_HAS_IOCP)
-
-#include "asio/error.hpp"
-#include "asio/detail/bind_handler.hpp"
-#include "asio/detail/buffer_sequence_adapter.hpp"
-#include "asio/detail/fenced_block.hpp"
-#include "asio/detail/handler_alloc_helpers.hpp"
-#include "asio/detail/handler_invoke_helpers.hpp"
-#include "asio/detail/memory.hpp"
-#include "asio/detail/operation.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-template <typename ConstBufferSequence, typename Handler>
-class win_iocp_handle_write_op : public operation
-{
-public:
-  ASIO_DEFINE_HANDLER_PTR(win_iocp_handle_write_op);
-
-  win_iocp_handle_write_op(const ConstBufferSequence& buffers, Handler& handler)
-    : operation(&win_iocp_handle_write_op::do_complete),
-      buffers_(buffers),
-      handler_(ASIO_MOVE_CAST(Handler)(handler))
-  {
-    handler_work<Handler>::start(handler_);
-  }
-
-  static void do_complete(void* owner, operation* base,
-      const asio::error_code& ec, std::size_t bytes_transferred)
-  {
-    // Take ownership of the operation object.
-    win_iocp_handle_write_op* o(static_cast<win_iocp_handle_write_op*>(base));
-    ptr p = { asio::detail::addressof(o->handler_), o, o };
-    handler_work<Handler> w(o->handler_);
-
-    ASIO_HANDLER_COMPLETION((*o));
-
-#if defined(ASIO_ENABLE_BUFFER_DEBUGGING)
-    if (owner)
-    {
-      // Check whether buffers are still valid.
-      buffer_sequence_adapter<asio::const_buffer,
-          ConstBufferSequence>::validate(o->buffers_);
-    }
-#endif // defined(ASIO_ENABLE_BUFFER_DEBUGGING)
-
-    // Make a copy of the handler so that the memory can be deallocated before
-    // the upcall is made. Even if we're not about to make an upcall, a
-    // sub-object of the handler may be the true owner of the memory associated
-    // with the handler. Consequently, a local copy of the handler is required
-    // to ensure that any owning sub-object remains valid until after we have
-    // deallocated the memory here.
-    detail::binder2<Handler, asio::error_code, std::size_t>
-      handler(o->handler_, ec, bytes_transferred);
-    p.h = asio::detail::addressof(handler.handler_);
-    p.reset();
-
-    // Make the upcall if required.
-    if (owner)
-    {
-      fenced_block b(fenced_block::half);
-      ASIO_HANDLER_INVOCATION_BEGIN((handler.arg1_, handler.arg2_));
-      w.complete(handler, handler.handler_);
-      ASIO_HANDLER_INVOCATION_END;
-    }
-  }
-
-private:
-  ConstBufferSequence buffers_;
-  Handler handler_;
-};
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // defined(ASIO_HAS_IOCP)
-
-#endif // ASIO_DETAIL_WIN_IOCP_HANDLE_WRITE_OP_HPP
diff --git a/lib/asio/detail/win_iocp_io_context.hpp b/lib/asio/detail/win_iocp_io_context.hpp
deleted file mode 100644
index 11bf58b..0000000
--- a/lib/asio/detail/win_iocp_io_context.hpp
+++ /dev/null
@@ -1,328 +0,0 @@
-//
-// detail/win_iocp_io_context.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_WIN_IOCP_IO_CONTEXT_HPP
-#define ASIO_DETAIL_WIN_IOCP_IO_CONTEXT_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-
-#if defined(ASIO_HAS_IOCP)
-
-#include "asio/detail/limits.hpp"
-#include "asio/detail/mutex.hpp"
-#include "asio/detail/op_queue.hpp"
-#include "asio/detail/scoped_ptr.hpp"
-#include "asio/detail/socket_types.hpp"
-#include "asio/detail/thread.hpp"
-#include "asio/detail/thread_context.hpp"
-#include "asio/detail/timer_queue_base.hpp"
-#include "asio/detail/timer_queue_set.hpp"
-#include "asio/detail/wait_op.hpp"
-#include "asio/detail/win_iocp_operation.hpp"
-#include "asio/detail/win_iocp_thread_info.hpp"
-#include "asio/execution_context.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-class wait_op;
-
-class win_iocp_io_context
-  : public execution_context_service_base<win_iocp_io_context>,
-    public thread_context
-{
-public:
-  // Constructor. Specifies a concurrency hint that is passed through to the
-  // underlying I/O completion port.
-  ASIO_DECL win_iocp_io_context(asio::execution_context& ctx,
-      int concurrency_hint = -1);
-
-  // Destroy all user-defined handler objects owned by the service.
-  ASIO_DECL void shutdown();
-
-  // Initialise the task. Nothing to do here.
-  void init_task()
-  {
-  }
-
-  // Register a handle with the IO completion port.
-  ASIO_DECL asio::error_code register_handle(
-      HANDLE handle, asio::error_code& ec);
-
-  // Run the event loop until stopped or no more work.
-  ASIO_DECL size_t run(asio::error_code& ec);
-
-  // Run until stopped or one operation is performed.
-  ASIO_DECL size_t run_one(asio::error_code& ec);
-
-  // Run until timeout, interrupted, or one operation is performed.
-  ASIO_DECL size_t wait_one(long usec, asio::error_code& ec);
-
-  // Poll for operations without blocking.
-  ASIO_DECL size_t poll(asio::error_code& ec);
-
-  // Poll for one operation without blocking.
-  ASIO_DECL size_t poll_one(asio::error_code& ec);
-
-  // Stop the event processing loop.
-  ASIO_DECL void stop();
-
-  // Determine whether the io_context is stopped.
-  bool stopped() const
-  {
-    return ::InterlockedExchangeAdd(&stopped_, 0) != 0;
-  }
-
-  // Restart in preparation for a subsequent run invocation.
-  void restart()
-  {
-    ::InterlockedExchange(&stopped_, 0);
-  }
-
-  // Notify that some work has started.
-  void work_started()
-  {
-    ::InterlockedIncrement(&outstanding_work_);
-  }
-
-  // Notify that some work has finished.
-  void work_finished()
-  {
-    if (::InterlockedDecrement(&outstanding_work_) == 0)
-      stop();
-  }
-
-  // Return whether a handler can be dispatched immediately.
-  bool can_dispatch()
-  {
-    return thread_call_stack::contains(this) != 0;
-  }
-
-  // Request invocation of the given operation and return immediately. Assumes
-  // that work_started() has not yet been called for the operation.
-  void post_immediate_completion(win_iocp_operation* op, bool)
-  {
-    work_started();
-    post_deferred_completion(op);
-  }
-
-  // Request invocation of the given operation and return immediately. Assumes
-  // that work_started() was previously called for the operation.
-  ASIO_DECL void post_deferred_completion(win_iocp_operation* op);
-
-  // Request invocation of the given operation and return immediately. Assumes
-  // that work_started() was previously called for the operations.
-  ASIO_DECL void post_deferred_completions(
-      op_queue<win_iocp_operation>& ops);
-
-  // Request invocation of the given operation using the thread-private queue
-  // and return immediately. Assumes that work_started() has not yet been
-  // called for the operation.
-  void post_private_immediate_completion(win_iocp_operation* op)
-  {
-    post_immediate_completion(op, false);
-  }
-
-  // Request invocation of the given operation using the thread-private queue
-  // and return immediately. Assumes that work_started() was previously called
-  // for the operation.
-  void post_private_deferred_completion(win_iocp_operation* op)
-  {
-    post_deferred_completion(op);
-  }
-
-  // Enqueue the given operation following a failed attempt to dispatch the
-  // operation for immediate invocation.
-  void do_dispatch(operation* op)
-  {
-    post_immediate_completion(op, false);
-  }
-
-  // Process unfinished operations as part of a shutdown operation. Assumes
-  // that work_started() was previously called for the operations.
-  ASIO_DECL void abandon_operations(op_queue<operation>& ops);
-
-  // Called after starting an overlapped I/O operation that did not complete
-  // immediately. The caller must have already called work_started() prior to
-  // starting the operation.
-  ASIO_DECL void on_pending(win_iocp_operation* op);
-
-  // Called after starting an overlapped I/O operation that completed
-  // immediately. The caller must have already called work_started() prior to
-  // starting the operation.
-  ASIO_DECL void on_completion(win_iocp_operation* op,
-      DWORD last_error = 0, DWORD bytes_transferred = 0);
-
-  // Called after starting an overlapped I/O operation that completed
-  // immediately. The caller must have already called work_started() prior to
-  // starting the operation.
-  ASIO_DECL void on_completion(win_iocp_operation* op,
-      const asio::error_code& ec, DWORD bytes_transferred = 0);
-
-  // Add a new timer queue to the service.
-  template <typename Time_Traits>
-  void add_timer_queue(timer_queue<Time_Traits>& timer_queue);
-
-  // Remove a timer queue from the service.
-  template <typename Time_Traits>
-  void remove_timer_queue(timer_queue<Time_Traits>& timer_queue);
-
-  // Schedule a new operation in the given timer queue to expire at the
-  // specified absolute time.
-  template <typename Time_Traits>
-  void schedule_timer(timer_queue<Time_Traits>& queue,
-      const typename Time_Traits::time_type& time,
-      typename timer_queue<Time_Traits>::per_timer_data& timer, wait_op* op);
-
-  // Cancel the timer associated with the given token. Returns the number of
-  // handlers that have been posted or dispatched.
-  template <typename Time_Traits>
-  std::size_t cancel_timer(timer_queue<Time_Traits>& queue,
-      typename timer_queue<Time_Traits>::per_timer_data& timer,
-      std::size_t max_cancelled = (std::numeric_limits<std::size_t>::max)());
-
-  // Move the timer operations associated with the given timer.
-  template <typename Time_Traits>
-  void move_timer(timer_queue<Time_Traits>& queue,
-      typename timer_queue<Time_Traits>::per_timer_data& to,
-      typename timer_queue<Time_Traits>::per_timer_data& from);
-
-  // Get the concurrency hint that was used to initialise the io_context.
-  int concurrency_hint() const
-  {
-    return concurrency_hint_;
-  }
-
-private:
-#if defined(WINVER) && (WINVER < 0x0500)
-  typedef DWORD dword_ptr_t;
-  typedef ULONG ulong_ptr_t;
-#else // defined(WINVER) && (WINVER < 0x0500)
-  typedef DWORD_PTR dword_ptr_t;
-  typedef ULONG_PTR ulong_ptr_t;
-#endif // defined(WINVER) && (WINVER < 0x0500)
-
-  // Dequeues at most one operation from the I/O completion port, and then
-  // executes it. Returns the number of operations that were dequeued (i.e.
-  // either 0 or 1).
-  ASIO_DECL size_t do_one(DWORD msec, asio::error_code& ec);
-
-  // Helper to calculate the GetQueuedCompletionStatus timeout.
-  ASIO_DECL static DWORD get_gqcs_timeout();
-
-  // Helper function to add a new timer queue.
-  ASIO_DECL void do_add_timer_queue(timer_queue_base& queue);
-
-  // Helper function to remove a timer queue.
-  ASIO_DECL void do_remove_timer_queue(timer_queue_base& queue);
-
-  // Called to recalculate and update the timeout.
-  ASIO_DECL void update_timeout();
-
-  // Helper class to call work_finished() on block exit.
-  struct work_finished_on_block_exit;
-
-  // Helper class for managing a HANDLE.
-  struct auto_handle
-  {
-    HANDLE handle;
-    auto_handle() : handle(0) {}
-    ~auto_handle() { if (handle) ::CloseHandle(handle); }
-  };
-
-  // The IO completion port used for queueing operations.
-  auto_handle iocp_;
-
-  // The count of unfinished work.
-  long outstanding_work_;
-
-  // Flag to indicate whether the event loop has been stopped.
-  mutable long stopped_;
-
-  // Flag to indicate whether there is an in-flight stop event. Every event
-  // posted using PostQueuedCompletionStatus consumes non-paged pool, so to
-  // avoid exhausting this resouce we limit the number of outstanding events.
-  long stop_event_posted_;
-
-  // Flag to indicate whether the service has been shut down.
-  long shutdown_;
-
-  enum
-  {
-    // Timeout to use with GetQueuedCompletionStatus on older versions of
-    // Windows. Some versions of windows have a "bug" where a call to
-    // GetQueuedCompletionStatus can appear stuck even though there are events
-    // waiting on the queue. Using a timeout helps to work around the issue.
-    default_gqcs_timeout = 500,
-
-    // Maximum waitable timer timeout, in milliseconds.
-    max_timeout_msec = 5 * 60 * 1000,
-
-    // Maximum waitable timer timeout, in microseconds.
-    max_timeout_usec = max_timeout_msec * 1000,
-
-    // Completion key value used to wake up a thread to dispatch timers or
-    // completed operations.
-    wake_for_dispatch = 1,
-
-    // Completion key value to indicate that an operation has posted with the
-    // original last_error and bytes_transferred values stored in the fields of
-    // the OVERLAPPED structure.
-    overlapped_contains_result = 2
-  };
-
-  // Timeout to use with GetQueuedCompletionStatus.
-  const DWORD gqcs_timeout_;
-
-  // Function object for processing timeouts in a background thread.
-  struct timer_thread_function;
-  friend struct timer_thread_function;
-
-  // Background thread used for processing timeouts.
-  scoped_ptr<thread> timer_thread_;
-
-  // A waitable timer object used for waiting for timeouts.
-  auto_handle waitable_timer_;
-
-  // Non-zero if timers or completed operations need to be dispatched.
-  long dispatch_required_;
-
-  // Mutex for protecting access to the timer queues and completed operations.
-  mutex dispatch_mutex_;
-
-  // The timer queues.
-  timer_queue_set timer_queues_;
-
-  // The operations that are ready to dispatch.
-  op_queue<win_iocp_operation> completed_ops_;
-
-  // The concurrency hint used to initialise the io_context.
-  const int concurrency_hint_;
-};
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#include "asio/detail/impl/win_iocp_io_context.hpp"
-#if defined(ASIO_HEADER_ONLY)
-# include "asio/detail/impl/win_iocp_io_context.ipp"
-#endif // defined(ASIO_HEADER_ONLY)
-
-#endif // defined(ASIO_HAS_IOCP)
-
-#endif // ASIO_DETAIL_WIN_IOCP_IO_CONTEXT_HPP
diff --git a/lib/asio/detail/win_iocp_null_buffers_op.hpp b/lib/asio/detail/win_iocp_null_buffers_op.hpp
deleted file mode 100644
index db70cb2..0000000
--- a/lib/asio/detail/win_iocp_null_buffers_op.hpp
+++ /dev/null
@@ -1,121 +0,0 @@
-//
-// detail/win_iocp_null_buffers_op.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_WIN_IOCP_NULL_BUFFERS_OP_HPP
-#define ASIO_DETAIL_WIN_IOCP_NULL_BUFFERS_OP_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-
-#if defined(ASIO_HAS_IOCP)
-
-#include "asio/detail/bind_handler.hpp"
-#include "asio/detail/buffer_sequence_adapter.hpp"
-#include "asio/detail/fenced_block.hpp"
-#include "asio/detail/handler_alloc_helpers.hpp"
-#include "asio/detail/handler_invoke_helpers.hpp"
-#include "asio/detail/memory.hpp"
-#include "asio/detail/reactor_op.hpp"
-#include "asio/detail/socket_ops.hpp"
-#include "asio/error.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-template <typename Handler>
-class win_iocp_null_buffers_op : public reactor_op
-{
-public:
-  ASIO_DEFINE_HANDLER_PTR(win_iocp_null_buffers_op);
-
-  win_iocp_null_buffers_op(socket_ops::weak_cancel_token_type cancel_token,
-      Handler& handler)
-    : reactor_op(&win_iocp_null_buffers_op::do_perform,
-        &win_iocp_null_buffers_op::do_complete),
-      cancel_token_(cancel_token),
-      handler_(ASIO_MOVE_CAST(Handler)(handler))
-  {
-    handler_work<Handler>::start(handler_);
-  }
-
-  static status do_perform(reactor_op*)
-  {
-    return done;
-  }
-
-  static void do_complete(void* owner, operation* base,
-      const asio::error_code& result_ec,
-      std::size_t bytes_transferred)
-  {
-    asio::error_code ec(result_ec);
-
-    // Take ownership of the operation object.
-    win_iocp_null_buffers_op* o(static_cast<win_iocp_null_buffers_op*>(base));
-    ptr p = { asio::detail::addressof(o->handler_), o, o };
-    handler_work<Handler> w(o->handler_);
-
-    ASIO_HANDLER_COMPLETION((*o));
-
-    // The reactor may have stored a result in the operation object.
-    if (o->ec_)
-      ec = o->ec_;
-
-    // Map non-portable errors to their portable counterparts.
-    if (ec.value() == ERROR_NETNAME_DELETED)
-    {
-      if (o->cancel_token_.expired())
-        ec = asio::error::operation_aborted;
-      else
-        ec = asio::error::connection_reset;
-    }
-    else if (ec.value() == ERROR_PORT_UNREACHABLE)
-    {
-      ec = asio::error::connection_refused;
-    }
-
-    // Make a copy of the handler so that the memory can be deallocated before
-    // the upcall is made. Even if we're not about to make an upcall, a
-    // sub-object of the handler may be the true owner of the memory associated
-    // with the handler. Consequently, a local copy of the handler is required
-    // to ensure that any owning sub-object remains valid until after we have
-    // deallocated the memory here.
-    detail::binder2<Handler, asio::error_code, std::size_t>
-      handler(o->handler_, ec, bytes_transferred);
-    p.h = asio::detail::addressof(handler.handler_);
-    p.reset();
-
-    // Make the upcall if required.
-    if (owner)
-    {
-      fenced_block b(fenced_block::half);
-      ASIO_HANDLER_INVOCATION_BEGIN((handler.arg1_, handler.arg2_));
-      w.complete(handler, handler.handler_);
-      ASIO_HANDLER_INVOCATION_END;
-    }
-  }
-
-private:
-  socket_ops::weak_cancel_token_type cancel_token_;
-  Handler handler_;
-};
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // defined(ASIO_HAS_IOCP)
-
-#endif // ASIO_DETAIL_WIN_IOCP_NULL_BUFFERS_OP_HPP
diff --git a/lib/asio/detail/win_iocp_operation.hpp b/lib/asio/detail/win_iocp_operation.hpp
deleted file mode 100644
index 81d43f0..0000000
--- a/lib/asio/detail/win_iocp_operation.hpp
+++ /dev/null
@@ -1,96 +0,0 @@
-//
-// detail/win_iocp_operation.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_WIN_IOCP_OPERATION_HPP
-#define ASIO_DETAIL_WIN_IOCP_OPERATION_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-
-#if defined(ASIO_HAS_IOCP)
-
-#include "asio/detail/handler_tracking.hpp"
-#include "asio/detail/op_queue.hpp"
-#include "asio/detail/socket_types.hpp"
-#include "asio/error_code.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-class win_iocp_io_context;
-
-// Base class for all operations. A function pointer is used instead of virtual
-// functions to avoid the associated overhead.
-class win_iocp_operation
-  : public OVERLAPPED
-    ASIO_ALSO_INHERIT_TRACKED_HANDLER
-{
-public:
-  typedef win_iocp_operation operation_type;
-
-  void complete(void* owner, const asio::error_code& ec,
-      std::size_t bytes_transferred)
-  {
-    func_(owner, this, ec, bytes_transferred);
-  }
-
-  void destroy()
-  {
-    func_(0, this, asio::error_code(), 0);
-  }
-
-protected:
-  typedef void (*func_type)(
-      void*, win_iocp_operation*,
-      const asio::error_code&, std::size_t);
-
-  win_iocp_operation(func_type func)
-    : next_(0),
-      func_(func)
-  {
-    reset();
-  }
-
-  // Prevents deletion through this type.
-  ~win_iocp_operation()
-  {
-  }
-
-  void reset()
-  {
-    Internal = 0;
-    InternalHigh = 0;
-    Offset = 0;
-    OffsetHigh = 0;
-    hEvent = 0;
-    ready_ = 0;
-  }
-
-private:
-  friend class op_queue_access;
-  friend class win_iocp_io_context;
-  win_iocp_operation* next_;
-  func_type func_;
-  long ready_;
-};
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // defined(ASIO_HAS_IOCP)
-
-#endif // ASIO_DETAIL_WIN_IOCP_OPERATION_HPP
diff --git a/lib/asio/detail/win_iocp_overlapped_op.hpp b/lib/asio/detail/win_iocp_overlapped_op.hpp
deleted file mode 100644
index 2b2cc31..0000000
--- a/lib/asio/detail/win_iocp_overlapped_op.hpp
+++ /dev/null
@@ -1,90 +0,0 @@
-//
-// detail/win_iocp_overlapped_op.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_WIN_IOCP_OVERLAPPED_OP_HPP
-#define ASIO_DETAIL_WIN_IOCP_OVERLAPPED_OP_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-
-#if defined(ASIO_HAS_IOCP)
-
-#include "asio/error.hpp"
-#include "asio/detail/bind_handler.hpp"
-#include "asio/detail/fenced_block.hpp"
-#include "asio/detail/handler_alloc_helpers.hpp"
-#include "asio/detail/handler_invoke_helpers.hpp"
-#include "asio/detail/memory.hpp"
-#include "asio/detail/operation.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-template <typename Handler>
-class win_iocp_overlapped_op : public operation
-{
-public:
-  ASIO_DEFINE_HANDLER_PTR(win_iocp_overlapped_op);
-
-  win_iocp_overlapped_op(Handler& handler)
-    : operation(&win_iocp_overlapped_op::do_complete),
-      handler_(ASIO_MOVE_CAST(Handler)(handler))
-  {
-    handler_work<Handler>::start(handler_);
-  }
-
-  static void do_complete(void* owner, operation* base,
-      const asio::error_code& ec, std::size_t bytes_transferred)
-  {
-    // Take ownership of the operation object.
-    win_iocp_overlapped_op* o(static_cast<win_iocp_overlapped_op*>(base));
-    ptr p = { asio::detail::addressof(o->handler_), o, o };
-    handler_work<Handler> w(o->handler_);
-
-    ASIO_HANDLER_COMPLETION((*o));
-
-    // Make a copy of the handler so that the memory can be deallocated before
-    // the upcall is made. Even if we're not about to make an upcall, a
-    // sub-object of the handler may be the true owner of the memory associated
-    // with the handler. Consequently, a local copy of the handler is required
-    // to ensure that any owning sub-object remains valid until after we have
-    // deallocated the memory here.
-    detail::binder2<Handler, asio::error_code, std::size_t>
-      handler(o->handler_, ec, bytes_transferred);
-    p.h = asio::detail::addressof(handler.handler_);
-    p.reset();
-
-    // Make the upcall if required.
-    if (owner)
-    {
-      fenced_block b(fenced_block::half);
-      ASIO_HANDLER_INVOCATION_BEGIN((handler.arg1_, handler.arg2_));
-      w.complete(handler, handler.handler_);
-      ASIO_HANDLER_INVOCATION_END;
-    }
-  }
-
-private:
-  Handler handler_;
-};
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // defined(ASIO_HAS_IOCP)
-
-#endif // ASIO_DETAIL_WIN_IOCP_OVERLAPPED_OP_HPP
diff --git a/lib/asio/detail/win_iocp_overlapped_ptr.hpp b/lib/asio/detail/win_iocp_overlapped_ptr.hpp
deleted file mode 100644
index 7a19114..0000000
--- a/lib/asio/detail/win_iocp_overlapped_ptr.hpp
+++ /dev/null
@@ -1,143 +0,0 @@
-//
-// detail/win_iocp_overlapped_ptr.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_WIN_IOCP_OVERLAPPED_PTR_HPP
-#define ASIO_DETAIL_WIN_IOCP_OVERLAPPED_PTR_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-
-#if defined(ASIO_HAS_IOCP)
-
-#include "asio/io_context.hpp"
-#include "asio/detail/handler_alloc_helpers.hpp"
-#include "asio/detail/memory.hpp"
-#include "asio/detail/noncopyable.hpp"
-#include "asio/detail/win_iocp_overlapped_op.hpp"
-#include "asio/detail/win_iocp_io_context.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-// Wraps a handler to create an OVERLAPPED object for use with overlapped I/O.
-class win_iocp_overlapped_ptr
-  : private noncopyable
-{
-public:
-  // Construct an empty win_iocp_overlapped_ptr.
-  win_iocp_overlapped_ptr()
-    : ptr_(0),
-      iocp_service_(0)
-  {
-  }
-
-  // Construct an win_iocp_overlapped_ptr to contain the specified handler.
-  template <typename Handler>
-  explicit win_iocp_overlapped_ptr(
-      asio::io_context& io_context, ASIO_MOVE_ARG(Handler) handler)
-    : ptr_(0),
-      iocp_service_(0)
-  {
-    this->reset(io_context, ASIO_MOVE_CAST(Handler)(handler));
-  }
-
-  // Destructor automatically frees the OVERLAPPED object unless released.
-  ~win_iocp_overlapped_ptr()
-  {
-    reset();
-  }
-
-  // Reset to empty.
-  void reset()
-  {
-    if (ptr_)
-    {
-      ptr_->destroy();
-      ptr_ = 0;
-      iocp_service_->work_finished();
-      iocp_service_ = 0;
-    }
-  }
-
-  // Reset to contain the specified handler, freeing any current OVERLAPPED
-  // object.
-  template <typename Handler>
-  void reset(asio::io_context& io_context, Handler handler)
-  {
-    typedef win_iocp_overlapped_op<Handler> op;
-    typename op::ptr p = { asio::detail::addressof(handler),
-      op::ptr::allocate(handler), 0 };
-    p.p = new (p.v) op(handler);
-
-    ASIO_HANDLER_CREATION((io_context, *p.p,
-          "io_context", &io_context.impl_, 0, "overlapped"));
-
-    io_context.impl_.work_started();
-    reset();
-    ptr_ = p.p;
-    p.v = p.p = 0;
-    iocp_service_ = &io_context.impl_;
-  }
-
-  // Get the contained OVERLAPPED object.
-  OVERLAPPED* get()
-  {
-    return ptr_;
-  }
-
-  // Get the contained OVERLAPPED object.
-  const OVERLAPPED* get() const
-  {
-    return ptr_;
-  }
-
-  // Release ownership of the OVERLAPPED object.
-  OVERLAPPED* release()
-  {
-    if (ptr_)
-      iocp_service_->on_pending(ptr_);
-
-    OVERLAPPED* tmp = ptr_;
-    ptr_ = 0;
-    iocp_service_ = 0;
-    return tmp;
-  }
-
-  // Post completion notification for overlapped operation. Releases ownership.
-  void complete(const asio::error_code& ec,
-      std::size_t bytes_transferred)
-  {
-    if (ptr_)
-    {
-      iocp_service_->on_completion(ptr_, ec,
-          static_cast<DWORD>(bytes_transferred));
-      ptr_ = 0;
-      iocp_service_ = 0;
-    }
-  }
-
-private:
-  win_iocp_operation* ptr_;
-  win_iocp_io_context* iocp_service_;
-};
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // defined(ASIO_HAS_IOCP)
-
-#endif // ASIO_DETAIL_WIN_IOCP_OVERLAPPED_PTR_HPP
diff --git a/lib/asio/detail/win_iocp_serial_port_service.hpp b/lib/asio/detail/win_iocp_serial_port_service.hpp
deleted file mode 100644
index ac06348..0000000
--- a/lib/asio/detail/win_iocp_serial_port_service.hpp
+++ /dev/null
@@ -1,230 +0,0 @@
-//
-// detail/win_iocp_serial_port_service.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-// Copyright (c) 2008 Rep Invariant Systems, Inc. (info@repinvariant.com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_WIN_IOCP_SERIAL_PORT_SERVICE_HPP
-#define ASIO_DETAIL_WIN_IOCP_SERIAL_PORT_SERVICE_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-
-#if defined(ASIO_HAS_IOCP) && defined(ASIO_HAS_SERIAL_PORT)
-
-#include <string>
-#include "asio/error.hpp"
-#include "asio/io_context.hpp"
-#include "asio/detail/win_iocp_handle_service.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-// Extend win_iocp_handle_service to provide serial port support.
-class win_iocp_serial_port_service :
-  public service_base<win_iocp_serial_port_service>
-{
-public:
-  // The native type of a serial port.
-  typedef win_iocp_handle_service::native_handle_type native_handle_type;
-
-  // The implementation type of the serial port.
-  typedef win_iocp_handle_service::implementation_type implementation_type;
-
-  // Constructor.
-  ASIO_DECL win_iocp_serial_port_service(
-      asio::io_context& io_context);
-
-  // Destroy all user-defined handler objects owned by the service.
-  ASIO_DECL void shutdown();
-
-  // Construct a new serial port implementation.
-  void construct(implementation_type& impl)
-  {
-    handle_service_.construct(impl);
-  }
-
-  // Move-construct a new serial port implementation.
-  void move_construct(implementation_type& impl,
-      implementation_type& other_impl)
-  {
-    handle_service_.move_construct(impl, other_impl);
-  }
-
-  // Move-assign from another serial port implementation.
-  void move_assign(implementation_type& impl,
-      win_iocp_serial_port_service& other_service,
-      implementation_type& other_impl)
-  {
-    handle_service_.move_assign(impl,
-        other_service.handle_service_, other_impl);
-  }
-
-  // Destroy a serial port implementation.
-  void destroy(implementation_type& impl)
-  {
-    handle_service_.destroy(impl);
-  }
-
-  // Open the serial port using the specified device name.
-  ASIO_DECL asio::error_code open(implementation_type& impl,
-      const std::string& device, asio::error_code& ec);
-
-  // Assign a native handle to a serial port implementation.
-  asio::error_code assign(implementation_type& impl,
-      const native_handle_type& handle, asio::error_code& ec)
-  {
-    return handle_service_.assign(impl, handle, ec);
-  }
-
-  // Determine whether the serial port is open.
-  bool is_open(const implementation_type& impl) const
-  {
-    return handle_service_.is_open(impl);
-  }
-
-  // Destroy a serial port implementation.
-  asio::error_code close(implementation_type& impl,
-      asio::error_code& ec)
-  {
-    return handle_service_.close(impl, ec);
-  }
-
-  // Get the native serial port representation.
-  native_handle_type native_handle(implementation_type& impl)
-  {
-    return handle_service_.native_handle(impl);
-  }
-
-  // Cancel all operations associated with the handle.
-  asio::error_code cancel(implementation_type& impl,
-      asio::error_code& ec)
-  {
-    return handle_service_.cancel(impl, ec);
-  }
-
-  // Set an option on the serial port.
-  template <typename SettableSerialPortOption>
-  asio::error_code set_option(implementation_type& impl,
-      const SettableSerialPortOption& option, asio::error_code& ec)
-  {
-    return do_set_option(impl,
-        &win_iocp_serial_port_service::store_option<SettableSerialPortOption>,
-        &option, ec);
-  }
-
-  // Get an option from the serial port.
-  template <typename GettableSerialPortOption>
-  asio::error_code get_option(const implementation_type& impl,
-      GettableSerialPortOption& option, asio::error_code& ec) const
-  {
-    return do_get_option(impl,
-        &win_iocp_serial_port_service::load_option<GettableSerialPortOption>,
-        &option, ec);
-  }
-
-  // Send a break sequence to the serial port.
-  asio::error_code send_break(implementation_type&,
-      asio::error_code& ec)
-  {
-    ec = asio::error::operation_not_supported;
-    return ec;
-  }
-
-  // Write the given data. Returns the number of bytes sent.
-  template <typename ConstBufferSequence>
-  size_t write_some(implementation_type& impl,
-      const ConstBufferSequence& buffers, asio::error_code& ec)
-  {
-    return handle_service_.write_some(impl, buffers, ec);
-  }
-
-  // Start an asynchronous write. The data being written must be valid for the
-  // lifetime of the asynchronous operation.
-  template <typename ConstBufferSequence, typename Handler>
-  void async_write_some(implementation_type& impl,
-      const ConstBufferSequence& buffers, Handler& handler)
-  {
-    handle_service_.async_write_some(impl, buffers, handler);
-  }
-
-  // Read some data. Returns the number of bytes received.
-  template <typename MutableBufferSequence>
-  size_t read_some(implementation_type& impl,
-      const MutableBufferSequence& buffers, asio::error_code& ec)
-  {
-    return handle_service_.read_some(impl, buffers, ec);
-  }
-
-  // Start an asynchronous read. The buffer for the data being received must be
-  // valid for the lifetime of the asynchronous operation.
-  template <typename MutableBufferSequence, typename Handler>
-  void async_read_some(implementation_type& impl,
-      const MutableBufferSequence& buffers, Handler& handler)
-  {
-    handle_service_.async_read_some(impl, buffers, handler);
-  }
-
-private:
-  // Function pointer type for storing a serial port option.
-  typedef asio::error_code (*store_function_type)(
-      const void*, ::DCB&, asio::error_code&);
-
-  // Helper function template to store a serial port option.
-  template <typename SettableSerialPortOption>
-  static asio::error_code store_option(const void* option,
-      ::DCB& storage, asio::error_code& ec)
-  {
-    static_cast<const SettableSerialPortOption*>(option)->store(storage, ec);
-    return ec;
-  }
-
-  // Helper function to set a serial port option.
-  ASIO_DECL asio::error_code do_set_option(
-      implementation_type& impl, store_function_type store,
-      const void* option, asio::error_code& ec);
-
-  // Function pointer type for loading a serial port option.
-  typedef asio::error_code (*load_function_type)(
-      void*, const ::DCB&, asio::error_code&);
-
-  // Helper function template to load a serial port option.
-  template <typename GettableSerialPortOption>
-  static asio::error_code load_option(void* option,
-      const ::DCB& storage, asio::error_code& ec)
-  {
-    static_cast<GettableSerialPortOption*>(option)->load(storage, ec);
-    return ec;
-  }
-
-  // Helper function to get a serial port option.
-  ASIO_DECL asio::error_code do_get_option(
-      const implementation_type& impl, load_function_type load,
-      void* option, asio::error_code& ec) const;
-
-  // The implementation used for initiating asynchronous operations.
-  win_iocp_handle_service handle_service_;
-};
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#if defined(ASIO_HEADER_ONLY)
-# include "asio/detail/impl/win_iocp_serial_port_service.ipp"
-#endif // defined(ASIO_HEADER_ONLY)
-
-#endif // defined(ASIO_HAS_IOCP) && defined(ASIO_HAS_SERIAL_PORT)
-
-#endif // ASIO_DETAIL_WIN_IOCP_SERIAL_PORT_SERVICE_HPP
diff --git a/lib/asio/detail/win_iocp_socket_accept_op.hpp b/lib/asio/detail/win_iocp_socket_accept_op.hpp
deleted file mode 100644
index 18e7335..0000000
--- a/lib/asio/detail/win_iocp_socket_accept_op.hpp
+++ /dev/null
@@ -1,297 +0,0 @@
-//
-// detail/win_iocp_socket_accept_op.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_WIN_IOCP_SOCKET_ACCEPT_OP_HPP
-#define ASIO_DETAIL_WIN_IOCP_SOCKET_ACCEPT_OP_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-
-#if defined(ASIO_HAS_IOCP)
-
-#include "asio/detail/bind_handler.hpp"
-#include "asio/detail/buffer_sequence_adapter.hpp"
-#include "asio/detail/fenced_block.hpp"
-#include "asio/detail/handler_alloc_helpers.hpp"
-#include "asio/detail/handler_invoke_helpers.hpp"
-#include "asio/detail/memory.hpp"
-#include "asio/detail/operation.hpp"
-#include "asio/detail/socket_ops.hpp"
-#include "asio/detail/win_iocp_socket_service_base.hpp"
-#include "asio/error.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-template <typename Socket, typename Protocol, typename Handler>
-class win_iocp_socket_accept_op : public operation
-{
-public:
-  ASIO_DEFINE_HANDLER_PTR(win_iocp_socket_accept_op);
-
-  win_iocp_socket_accept_op(win_iocp_socket_service_base& socket_service,
-      socket_type socket, Socket& peer, const Protocol& protocol,
-      typename Protocol::endpoint* peer_endpoint,
-      bool enable_connection_aborted, Handler& handler)
-    : operation(&win_iocp_socket_accept_op::do_complete),
-      socket_service_(socket_service),
-      socket_(socket),
-      peer_(peer),
-      protocol_(protocol),
-      peer_endpoint_(peer_endpoint),
-      enable_connection_aborted_(enable_connection_aborted),
-      handler_(ASIO_MOVE_CAST(Handler)(handler))
-  {
-    handler_work<Handler>::start(handler_);
-  }
-
-  socket_holder& new_socket()
-  {
-    return new_socket_;
-  }
-
-  void* output_buffer()
-  {
-    return output_buffer_;
-  }
-
-  DWORD address_length()
-  {
-    return sizeof(sockaddr_storage_type) + 16;
-  }
-
-  static void do_complete(void* owner, operation* base,
-      const asio::error_code& result_ec,
-      std::size_t /*bytes_transferred*/)
-  {
-    asio::error_code ec(result_ec);
-
-    // Take ownership of the operation object.
-    win_iocp_socket_accept_op* o(static_cast<win_iocp_socket_accept_op*>(base));
-    ptr p = { asio::detail::addressof(o->handler_), o, o };
-    handler_work<Handler> w(o->handler_);
-
-    if (owner)
-    {
-      typename Protocol::endpoint peer_endpoint;
-      std::size_t addr_len = peer_endpoint.capacity();
-      socket_ops::complete_iocp_accept(o->socket_,
-          o->output_buffer(), o->address_length(),
-          peer_endpoint.data(), &addr_len,
-          o->new_socket_.get(), ec);
-
-      // Restart the accept operation if we got the connection_aborted error
-      // and the enable_connection_aborted socket option is not set.
-      if (ec == asio::error::connection_aborted
-          && !o->enable_connection_aborted_)
-      {
-        o->reset();
-        o->socket_service_.restart_accept_op(o->socket_,
-            o->new_socket_, o->protocol_.family(),
-            o->protocol_.type(), o->protocol_.protocol(),
-            o->output_buffer(), o->address_length(), o);
-        p.v = p.p = 0;
-        return;
-      }
-
-      // If the socket was successfully accepted, transfer ownership of the
-      // socket to the peer object.
-      if (!ec)
-      {
-        o->peer_.assign(o->protocol_,
-            typename Socket::native_handle_type(
-              o->new_socket_.get(), peer_endpoint), ec);
-        if (!ec)
-          o->new_socket_.release();
-      }
-
-      // Pass endpoint back to caller.
-      if (o->peer_endpoint_)
-        *o->peer_endpoint_ = peer_endpoint;
-    }
-
-    ASIO_HANDLER_COMPLETION((*o));
-
-    // Make a copy of the handler so that the memory can be deallocated before
-    // the upcall is made. Even if we're not about to make an upcall, a
-    // sub-object of the handler may be the true owner of the memory associated
-    // with the handler. Consequently, a local copy of the handler is required
-    // to ensure that any owning sub-object remains valid until after we have
-    // deallocated the memory here.
-    detail::binder1<Handler, asio::error_code>
-      handler(o->handler_, ec);
-    p.h = asio::detail::addressof(handler.handler_);
-    p.reset();
-
-    // Make the upcall if required.
-    if (owner)
-    {
-      fenced_block b(fenced_block::half);
-      ASIO_HANDLER_INVOCATION_BEGIN((handler.arg1_));
-      w.complete(handler, handler.handler_);
-      ASIO_HANDLER_INVOCATION_END;
-    }
-  }
-
-private:
-  win_iocp_socket_service_base& socket_service_;
-  socket_type socket_;
-  socket_holder new_socket_;
-  Socket& peer_;
-  Protocol protocol_;
-  typename Protocol::endpoint* peer_endpoint_;
-  unsigned char output_buffer_[(sizeof(sockaddr_storage_type) + 16) * 2];
-  bool enable_connection_aborted_;
-  Handler handler_;
-};
-
-#if defined(ASIO_HAS_MOVE)
-
-template <typename Protocol, typename Handler>
-class win_iocp_socket_move_accept_op : public operation
-{
-public:
-  ASIO_DEFINE_HANDLER_PTR(win_iocp_socket_move_accept_op);
-
-  win_iocp_socket_move_accept_op(
-      win_iocp_socket_service_base& socket_service, socket_type socket,
-      const Protocol& protocol, asio::io_context& peer_io_context,
-      typename Protocol::endpoint* peer_endpoint,
-      bool enable_connection_aborted, Handler& handler)
-    : operation(&win_iocp_socket_move_accept_op::do_complete),
-      socket_service_(socket_service),
-      socket_(socket),
-      peer_(peer_io_context),
-      protocol_(protocol),
-      peer_endpoint_(peer_endpoint),
-      enable_connection_aborted_(enable_connection_aborted),
-      handler_(ASIO_MOVE_CAST(Handler)(handler))
-  {
-    handler_work<Handler>::start(handler_);
-  }
-
-  socket_holder& new_socket()
-  {
-    return new_socket_;
-  }
-
-  void* output_buffer()
-  {
-    return output_buffer_;
-  }
-
-  DWORD address_length()
-  {
-    return sizeof(sockaddr_storage_type) + 16;
-  }
-
-  static void do_complete(void* owner, operation* base,
-      const asio::error_code& result_ec,
-      std::size_t /*bytes_transferred*/)
-  {
-    asio::error_code ec(result_ec);
-
-    // Take ownership of the operation object.
-    win_iocp_socket_move_accept_op* o(
-        static_cast<win_iocp_socket_move_accept_op*>(base));
-    ptr p = { asio::detail::addressof(o->handler_), o, o };
-    handler_work<Handler> w(o->handler_);
-
-    if (owner)
-    {
-      typename Protocol::endpoint peer_endpoint;
-      std::size_t addr_len = peer_endpoint.capacity();
-      socket_ops::complete_iocp_accept(o->socket_,
-          o->output_buffer(), o->address_length(),
-          peer_endpoint.data(), &addr_len,
-          o->new_socket_.get(), ec);
-
-      // Restart the accept operation if we got the connection_aborted error
-      // and the enable_connection_aborted socket option is not set.
-      if (ec == asio::error::connection_aborted
-          && !o->enable_connection_aborted_)
-      {
-        o->reset();
-        o->socket_service_.restart_accept_op(o->socket_,
-            o->new_socket_, o->protocol_.family(),
-            o->protocol_.type(), o->protocol_.protocol(),
-            o->output_buffer(), o->address_length(), o);
-        p.v = p.p = 0;
-        return;
-      }
-
-      // If the socket was successfully accepted, transfer ownership of the
-      // socket to the peer object.
-      if (!ec)
-      {
-        o->peer_.assign(o->protocol_,
-            typename Protocol::socket::native_handle_type(
-              o->new_socket_.get(), peer_endpoint), ec);
-        if (!ec)
-          o->new_socket_.release();
-      }
-
-      // Pass endpoint back to caller.
-      if (o->peer_endpoint_)
-        *o->peer_endpoint_ = peer_endpoint;
-    }
-
-    ASIO_HANDLER_COMPLETION((*o));
-
-    // Make a copy of the handler so that the memory can be deallocated before
-    // the upcall is made. Even if we're not about to make an upcall, a
-    // sub-object of the handler may be the true owner of the memory associated
-    // with the handler. Consequently, a local copy of the handler is required
-    // to ensure that any owning sub-object remains valid until after we have
-    // deallocated the memory here.
-    detail::move_binder2<Handler,
-      asio::error_code, typename Protocol::socket>
-        handler(0, ASIO_MOVE_CAST(Handler)(o->handler_), ec,
-          ASIO_MOVE_CAST(typename Protocol::socket)(o->peer_));
-    p.h = asio::detail::addressof(handler.handler_);
-    p.reset();
-
-    // Make the upcall if required.
-    if (owner)
-    {
-      fenced_block b(fenced_block::half);
-      ASIO_HANDLER_INVOCATION_BEGIN((handler.arg1_, "..."));
-      w.complete(handler, handler.handler_);
-      ASIO_HANDLER_INVOCATION_END;
-    }
-  }
-
-private:
-  win_iocp_socket_service_base& socket_service_;
-  socket_type socket_;
-  socket_holder new_socket_;
-  typename Protocol::socket peer_;
-  Protocol protocol_;
-  typename Protocol::endpoint* peer_endpoint_;
-  unsigned char output_buffer_[(sizeof(sockaddr_storage_type) + 16) * 2];
-  bool enable_connection_aborted_;
-  Handler handler_;
-};
-
-#endif // defined(ASIO_HAS_MOVE)
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // defined(ASIO_HAS_IOCP)
-
-#endif // ASIO_DETAIL_WIN_IOCP_SOCKET_ACCEPT_OP_HPP
diff --git a/lib/asio/detail/win_iocp_socket_connect_op.hpp b/lib/asio/detail/win_iocp_socket_connect_op.hpp
deleted file mode 100644
index e0c52dc..0000000
--- a/lib/asio/detail/win_iocp_socket_connect_op.hpp
+++ /dev/null
@@ -1,127 +0,0 @@
-//
-// detail/win_iocp_socket_connect_op.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_WIN_IOCP_SOCKET_CONNECT_OP_HPP
-#define ASIO_DETAIL_WIN_IOCP_SOCKET_CONNECT_OP_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-
-#if defined(ASIO_HAS_IOCP)
-
-#include "asio/detail/bind_handler.hpp"
-#include "asio/detail/fenced_block.hpp"
-#include "asio/detail/handler_alloc_helpers.hpp"
-#include "asio/detail/handler_invoke_helpers.hpp"
-#include "asio/detail/memory.hpp"
-#include "asio/detail/reactor_op.hpp"
-#include "asio/detail/socket_ops.hpp"
-#include "asio/error.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-class win_iocp_socket_connect_op_base : public reactor_op
-{
-public:
-  win_iocp_socket_connect_op_base(socket_type socket, func_type complete_func)
-    : reactor_op(&win_iocp_socket_connect_op_base::do_perform, complete_func),
-      socket_(socket),
-      connect_ex_(false)
-  {
-  }
-
-  static status do_perform(reactor_op* base)
-  {
-    win_iocp_socket_connect_op_base* o(
-        static_cast<win_iocp_socket_connect_op_base*>(base));
-
-    return socket_ops::non_blocking_connect(
-        o->socket_, o->ec_) ? done : not_done;
-  }
-
-  socket_type socket_;
-  bool connect_ex_;
-};
-
-template <typename Handler>
-class win_iocp_socket_connect_op : public win_iocp_socket_connect_op_base
-{
-public:
-  ASIO_DEFINE_HANDLER_PTR(win_iocp_socket_connect_op);
-
-  win_iocp_socket_connect_op(socket_type socket, Handler& handler)
-    : win_iocp_socket_connect_op_base(socket,
-        &win_iocp_socket_connect_op::do_complete),
-      handler_(ASIO_MOVE_CAST(Handler)(handler))
-  {
-    handler_work<Handler>::start(handler_);
-  }
-
-  static void do_complete(void* owner, operation* base,
-      const asio::error_code& result_ec,
-      std::size_t /*bytes_transferred*/)
-  {
-    asio::error_code ec(result_ec);
-
-    // Take ownership of the operation object.
-    win_iocp_socket_connect_op* o(
-        static_cast<win_iocp_socket_connect_op*>(base));
-    ptr p = { asio::detail::addressof(o->handler_), o, o };
-    handler_work<Handler> w(o->handler_);
-
-    if (owner)
-    {
-      if (o->connect_ex_)
-        socket_ops::complete_iocp_connect(o->socket_, ec);
-      else
-        ec = o->ec_;
-    }
-
-    ASIO_HANDLER_COMPLETION((*o));
-
-    // Make a copy of the handler so that the memory can be deallocated before
-    // the upcall is made. Even if we're not about to make an upcall, a
-    // sub-object of the handler may be the true owner of the memory associated
-    // with the handler. Consequently, a local copy of the handler is required
-    // to ensure that any owning sub-object remains valid until after we have
-    // deallocated the memory here.
-    detail::binder1<Handler, asio::error_code>
-      handler(o->handler_, ec);
-    p.h = asio::detail::addressof(handler.handler_);
-    p.reset();
-
-    // Make the upcall if required.
-    if (owner)
-    {
-      fenced_block b(fenced_block::half);
-      ASIO_HANDLER_INVOCATION_BEGIN((handler.arg1_));
-      w.complete(handler, handler.handler_);
-      ASIO_HANDLER_INVOCATION_END;
-    }
-  }
-
-private:
-  Handler handler_;
-};
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // defined(ASIO_HAS_IOCP)
-
-#endif // ASIO_DETAIL_WIN_IOCP_SOCKET_CONNECT_OP_HPP
diff --git a/lib/asio/detail/win_iocp_socket_recv_op.hpp b/lib/asio/detail/win_iocp_socket_recv_op.hpp
deleted file mode 100644
index 4159540..0000000
--- a/lib/asio/detail/win_iocp_socket_recv_op.hpp
+++ /dev/null
@@ -1,117 +0,0 @@
-//
-// detail/win_iocp_socket_recv_op.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_WIN_IOCP_SOCKET_RECV_OP_HPP
-#define ASIO_DETAIL_WIN_IOCP_SOCKET_RECV_OP_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-
-#if defined(ASIO_HAS_IOCP)
-
-#include "asio/detail/bind_handler.hpp"
-#include "asio/detail/buffer_sequence_adapter.hpp"
-#include "asio/detail/fenced_block.hpp"
-#include "asio/detail/handler_alloc_helpers.hpp"
-#include "asio/detail/handler_invoke_helpers.hpp"
-#include "asio/detail/memory.hpp"
-#include "asio/detail/operation.hpp"
-#include "asio/detail/socket_ops.hpp"
-#include "asio/error.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-template <typename MutableBufferSequence, typename Handler>
-class win_iocp_socket_recv_op : public operation
-{
-public:
-  ASIO_DEFINE_HANDLER_PTR(win_iocp_socket_recv_op);
-
-  win_iocp_socket_recv_op(socket_ops::state_type state,
-      socket_ops::weak_cancel_token_type cancel_token,
-      const MutableBufferSequence& buffers, Handler& handler)
-    : operation(&win_iocp_socket_recv_op::do_complete),
-      state_(state),
-      cancel_token_(cancel_token),
-      buffers_(buffers),
-      handler_(ASIO_MOVE_CAST(Handler)(handler))
-  {
-    handler_work<Handler>::start(handler_);
-  }
-
-  static void do_complete(void* owner, operation* base,
-      const asio::error_code& result_ec,
-      std::size_t bytes_transferred)
-  {
-    asio::error_code ec(result_ec);
-
-    // Take ownership of the operation object.
-    win_iocp_socket_recv_op* o(static_cast<win_iocp_socket_recv_op*>(base));
-    ptr p = { asio::detail::addressof(o->handler_), o, o };
-    handler_work<Handler> w(o->handler_);
-
-    ASIO_HANDLER_COMPLETION((*o));
-
-#if defined(ASIO_ENABLE_BUFFER_DEBUGGING)
-    // Check whether buffers are still valid.
-    if (owner)
-    {
-      buffer_sequence_adapter<asio::mutable_buffer,
-          MutableBufferSequence>::validate(o->buffers_);
-    }
-#endif // defined(ASIO_ENABLE_BUFFER_DEBUGGING)
-
-    socket_ops::complete_iocp_recv(o->state_, o->cancel_token_,
-        buffer_sequence_adapter<asio::mutable_buffer,
-          MutableBufferSequence>::all_empty(o->buffers_),
-        ec, bytes_transferred);
-
-    // Make a copy of the handler so that the memory can be deallocated before
-    // the upcall is made. Even if we're not about to make an upcall, a
-    // sub-object of the handler may be the true owner of the memory associated
-    // with the handler. Consequently, a local copy of the handler is required
-    // to ensure that any owning sub-object remains valid until after we have
-    // deallocated the memory here.
-    detail::binder2<Handler, asio::error_code, std::size_t>
-      handler(o->handler_, ec, bytes_transferred);
-    p.h = asio::detail::addressof(handler.handler_);
-    p.reset();
-
-    // Make the upcall if required.
-    if (owner)
-    {
-      fenced_block b(fenced_block::half);
-      ASIO_HANDLER_INVOCATION_BEGIN((handler.arg1_, handler.arg2_));
-      w.complete(handler, handler.handler_);
-      ASIO_HANDLER_INVOCATION_END;
-    }
-  }
-
-private:
-  socket_ops::state_type state_;
-  socket_ops::weak_cancel_token_type cancel_token_;
-  MutableBufferSequence buffers_;
-  Handler handler_;
-};
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // defined(ASIO_HAS_IOCP)
-
-#endif // ASIO_DETAIL_WIN_IOCP_SOCKET_RECV_OP_HPP
diff --git a/lib/asio/detail/win_iocp_socket_recvfrom_op.hpp b/lib/asio/detail/win_iocp_socket_recvfrom_op.hpp
deleted file mode 100644
index 843ce5b..0000000
--- a/lib/asio/detail/win_iocp_socket_recvfrom_op.hpp
+++ /dev/null
@@ -1,125 +0,0 @@
-//
-// detail/win_iocp_socket_recvfrom_op.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_WIN_IOCP_SOCKET_RECVFROM_OP_HPP
-#define ASIO_DETAIL_WIN_IOCP_SOCKET_RECVFROM_OP_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-
-#if defined(ASIO_HAS_IOCP)
-
-#include "asio/detail/bind_handler.hpp"
-#include "asio/detail/buffer_sequence_adapter.hpp"
-#include "asio/detail/fenced_block.hpp"
-#include "asio/detail/handler_alloc_helpers.hpp"
-#include "asio/detail/handler_invoke_helpers.hpp"
-#include "asio/detail/memory.hpp"
-#include "asio/detail/operation.hpp"
-#include "asio/detail/socket_ops.hpp"
-#include "asio/error.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-template <typename MutableBufferSequence, typename Endpoint, typename Handler>
-class win_iocp_socket_recvfrom_op : public operation
-{
-public:
-  ASIO_DEFINE_HANDLER_PTR(win_iocp_socket_recvfrom_op);
-
-  win_iocp_socket_recvfrom_op(Endpoint& endpoint,
-      socket_ops::weak_cancel_token_type cancel_token,
-      const MutableBufferSequence& buffers, Handler& handler)
-    : operation(&win_iocp_socket_recvfrom_op::do_complete),
-      endpoint_(endpoint),
-      endpoint_size_(static_cast<int>(endpoint.capacity())),
-      cancel_token_(cancel_token),
-      buffers_(buffers),
-      handler_(ASIO_MOVE_CAST(Handler)(handler))
-  {
-    handler_work<Handler>::start(handler_);
-  }
-
-  int& endpoint_size()
-  {
-    return endpoint_size_;
-  }
-
-  static void do_complete(void* owner, operation* base,
-      const asio::error_code& result_ec,
-      std::size_t bytes_transferred)
-  {
-    asio::error_code ec(result_ec);
-
-    // Take ownership of the operation object.
-    win_iocp_socket_recvfrom_op* o(
-        static_cast<win_iocp_socket_recvfrom_op*>(base));
-    ptr p = { asio::detail::addressof(o->handler_), o, o };
-    handler_work<Handler> w(o->handler_);
-
-    ASIO_HANDLER_COMPLETION((*o));
-
-#if defined(ASIO_ENABLE_BUFFER_DEBUGGING)
-    // Check whether buffers are still valid.
-    if (owner)
-    {
-      buffer_sequence_adapter<asio::mutable_buffer,
-          MutableBufferSequence>::validate(o->buffers_);
-    }
-#endif // defined(ASIO_ENABLE_BUFFER_DEBUGGING)
-
-    socket_ops::complete_iocp_recvfrom(o->cancel_token_, ec);
-
-    // Record the size of the endpoint returned by the operation.
-    o->endpoint_.resize(o->endpoint_size_);
-
-    // Make a copy of the handler so that the memory can be deallocated before
-    // the upcall is made. Even if we're not about to make an upcall, a
-    // sub-object of the handler may be the true owner of the memory associated
-    // with the handler. Consequently, a local copy of the handler is required
-    // to ensure that any owning sub-object remains valid until after we have
-    // deallocated the memory here.
-    detail::binder2<Handler, asio::error_code, std::size_t>
-      handler(o->handler_, ec, bytes_transferred);
-    p.h = asio::detail::addressof(handler.handler_);
-    p.reset();
-
-    // Make the upcall if required.
-    if (owner)
-    {
-      fenced_block b(fenced_block::half);
-      ASIO_HANDLER_INVOCATION_BEGIN((handler.arg1_, handler.arg2_));
-      w.complete(handler, handler.handler_);
-      ASIO_HANDLER_INVOCATION_END;
-    }
-  }
-
-private:
-  Endpoint& endpoint_;
-  int endpoint_size_;
-  socket_ops::weak_cancel_token_type cancel_token_;
-  MutableBufferSequence buffers_;
-  Handler handler_;
-};
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // defined(ASIO_HAS_IOCP)
-
-#endif // ASIO_DETAIL_WIN_IOCP_SOCKET_RECVFROM_OP_HPP
diff --git a/lib/asio/detail/win_iocp_socket_recvmsg_op.hpp b/lib/asio/detail/win_iocp_socket_recvmsg_op.hpp
deleted file mode 100644
index 78f36b7..0000000
--- a/lib/asio/detail/win_iocp_socket_recvmsg_op.hpp
+++ /dev/null
@@ -1,118 +0,0 @@
-//
-// detail/win_iocp_socket_recvmsg_op.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_WIN_IOCP_SOCKET_RECVMSG_OP_HPP
-#define ASIO_DETAIL_WIN_IOCP_SOCKET_RECVMSG_OP_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-
-#if defined(ASIO_HAS_IOCP)
-
-#include "asio/detail/bind_handler.hpp"
-#include "asio/detail/buffer_sequence_adapter.hpp"
-#include "asio/detail/fenced_block.hpp"
-#include "asio/detail/handler_alloc_helpers.hpp"
-#include "asio/detail/handler_invoke_helpers.hpp"
-#include "asio/detail/memory.hpp"
-#include "asio/detail/operation.hpp"
-#include "asio/detail/socket_ops.hpp"
-#include "asio/error.hpp"
-#include "asio/socket_base.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-template <typename MutableBufferSequence, typename Handler>
-class win_iocp_socket_recvmsg_op : public operation
-{
-public:
-  ASIO_DEFINE_HANDLER_PTR(win_iocp_socket_recvmsg_op);
-
-  win_iocp_socket_recvmsg_op(
-      socket_ops::weak_cancel_token_type cancel_token,
-      const MutableBufferSequence& buffers,
-      socket_base::message_flags& out_flags, Handler& handler)
-    : operation(&win_iocp_socket_recvmsg_op::do_complete),
-      cancel_token_(cancel_token),
-      buffers_(buffers),
-      out_flags_(out_flags),
-      handler_(ASIO_MOVE_CAST(Handler)(handler))
-  {
-    handler_work<Handler>::start(handler_);
-  }
-
-  static void do_complete(void* owner, operation* base,
-      const asio::error_code& result_ec,
-      std::size_t bytes_transferred)
-  {
-    asio::error_code ec(result_ec);
-
-    // Take ownership of the operation object.
-    win_iocp_socket_recvmsg_op* o(
-        static_cast<win_iocp_socket_recvmsg_op*>(base));
-    ptr p = { asio::detail::addressof(o->handler_), o, o };
-    handler_work<Handler> w(o->handler_);
-
-    ASIO_HANDLER_COMPLETION((*o));
-
-#if defined(ASIO_ENABLE_BUFFER_DEBUGGING)
-    // Check whether buffers are still valid.
-    if (owner)
-    {
-      buffer_sequence_adapter<asio::mutable_buffer,
-          MutableBufferSequence>::validate(o->buffers_);
-    }
-#endif // defined(ASIO_ENABLE_BUFFER_DEBUGGING)
-
-    socket_ops::complete_iocp_recvmsg(o->cancel_token_, ec);
-    o->out_flags_ = 0;
-
-    // Make a copy of the handler so that the memory can be deallocated before
-    // the upcall is made. Even if we're not about to make an upcall, a
-    // sub-object of the handler may be the true owner of the memory associated
-    // with the handler. Consequently, a local copy of the handler is required
-    // to ensure that any owning sub-object remains valid until after we have
-    // deallocated the memory here.
-    detail::binder2<Handler, asio::error_code, std::size_t>
-      handler(o->handler_, ec, bytes_transferred);
-    p.h = asio::detail::addressof(handler.handler_);
-    p.reset();
-
-    // Make the upcall if required.
-    if (owner)
-    {
-      fenced_block b(fenced_block::half);
-      ASIO_HANDLER_INVOCATION_BEGIN((handler.arg1_, handler.arg2_));
-      w.complete(handler, handler.handler_);
-      ASIO_HANDLER_INVOCATION_END;
-    }
-  }
-
-private:
-  socket_ops::weak_cancel_token_type cancel_token_;
-  MutableBufferSequence buffers_;
-  socket_base::message_flags& out_flags_;
-  Handler handler_;
-};
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // defined(ASIO_HAS_IOCP)
-
-#endif // ASIO_DETAIL_WIN_IOCP_SOCKET_RECVMSG_OP_HPP
diff --git a/lib/asio/detail/win_iocp_socket_send_op.hpp b/lib/asio/detail/win_iocp_socket_send_op.hpp
deleted file mode 100644
index e1c7ab9..0000000
--- a/lib/asio/detail/win_iocp_socket_send_op.hpp
+++ /dev/null
@@ -1,111 +0,0 @@
-//
-// detail/win_iocp_socket_send_op.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_WIN_IOCP_SOCKET_SEND_OP_HPP
-#define ASIO_DETAIL_WIN_IOCP_SOCKET_SEND_OP_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-
-#if defined(ASIO_HAS_IOCP)
-
-#include "asio/detail/bind_handler.hpp"
-#include "asio/detail/buffer_sequence_adapter.hpp"
-#include "asio/detail/fenced_block.hpp"
-#include "asio/detail/handler_alloc_helpers.hpp"
-#include "asio/detail/handler_invoke_helpers.hpp"
-#include "asio/detail/memory.hpp"
-#include "asio/detail/operation.hpp"
-#include "asio/detail/socket_ops.hpp"
-#include "asio/error.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-template <typename ConstBufferSequence, typename Handler>
-class win_iocp_socket_send_op : public operation
-{
-public:
-  ASIO_DEFINE_HANDLER_PTR(win_iocp_socket_send_op);
-
-  win_iocp_socket_send_op(socket_ops::weak_cancel_token_type cancel_token,
-      const ConstBufferSequence& buffers, Handler& handler)
-    : operation(&win_iocp_socket_send_op::do_complete),
-      cancel_token_(cancel_token),
-      buffers_(buffers),
-      handler_(ASIO_MOVE_CAST(Handler)(handler))
-  {
-    handler_work<Handler>::start(handler_);
-  }
-
-  static void do_complete(void* owner, operation* base,
-      const asio::error_code& result_ec,
-      std::size_t bytes_transferred)
-  {
-    asio::error_code ec(result_ec);
-
-    // Take ownership of the operation object.
-    win_iocp_socket_send_op* o(static_cast<win_iocp_socket_send_op*>(base));
-    ptr p = { asio::detail::addressof(o->handler_), o, o };
-    handler_work<Handler> w(o->handler_);
-
-    ASIO_HANDLER_COMPLETION((*o));
-
-#if defined(ASIO_ENABLE_BUFFER_DEBUGGING)
-    // Check whether buffers are still valid.
-    if (owner)
-    {
-      buffer_sequence_adapter<asio::const_buffer,
-          ConstBufferSequence>::validate(o->buffers_);
-    }
-#endif // defined(ASIO_ENABLE_BUFFER_DEBUGGING)
-
-    socket_ops::complete_iocp_send(o->cancel_token_, ec);
-
-    // Make a copy of the handler so that the memory can be deallocated before
-    // the upcall is made. Even if we're not about to make an upcall, a
-    // sub-object of the handler may be the true owner of the memory associated
-    // with the handler. Consequently, a local copy of the handler is required
-    // to ensure that any owning sub-object remains valid until after we have
-    // deallocated the memory here.
-    detail::binder2<Handler, asio::error_code, std::size_t>
-      handler(o->handler_, ec, bytes_transferred);
-    p.h = asio::detail::addressof(handler.handler_);
-    p.reset();
-
-    // Make the upcall if required.
-    if (owner)
-    {
-      fenced_block b(fenced_block::half);
-      ASIO_HANDLER_INVOCATION_BEGIN((handler.arg1_, handler.arg2_));
-      w.complete(handler, handler.handler_);
-      ASIO_HANDLER_INVOCATION_END;
-    }
-  }
-
-private:
-  socket_ops::weak_cancel_token_type cancel_token_;
-  ConstBufferSequence buffers_;
-  Handler handler_;
-};
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // defined(ASIO_HAS_IOCP)
-
-#endif // ASIO_DETAIL_WIN_IOCP_SOCKET_SEND_OP_HPP
diff --git a/lib/asio/detail/win_iocp_socket_service.hpp b/lib/asio/detail/win_iocp_socket_service.hpp
deleted file mode 100644
index 3f01b4d..0000000
--- a/lib/asio/detail/win_iocp_socket_service.hpp
+++ /dev/null
@@ -1,599 +0,0 @@
-//
-// detail/win_iocp_socket_service.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_WIN_IOCP_SOCKET_SERVICE_HPP
-#define ASIO_DETAIL_WIN_IOCP_SOCKET_SERVICE_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-
-#if defined(ASIO_HAS_IOCP)
-
-#include <cstring>
-#include "asio/error.hpp"
-#include "asio/io_context.hpp"
-#include "asio/socket_base.hpp"
-#include "asio/detail/bind_handler.hpp"
-#include "asio/detail/buffer_sequence_adapter.hpp"
-#include "asio/detail/fenced_block.hpp"
-#include "asio/detail/handler_alloc_helpers.hpp"
-#include "asio/detail/handler_invoke_helpers.hpp"
-#include "asio/detail/memory.hpp"
-#include "asio/detail/mutex.hpp"
-#include "asio/detail/operation.hpp"
-#include "asio/detail/reactor_op.hpp"
-#include "asio/detail/select_reactor.hpp"
-#include "asio/detail/socket_holder.hpp"
-#include "asio/detail/socket_ops.hpp"
-#include "asio/detail/socket_types.hpp"
-#include "asio/detail/win_iocp_io_context.hpp"
-#include "asio/detail/win_iocp_null_buffers_op.hpp"
-#include "asio/detail/win_iocp_socket_accept_op.hpp"
-#include "asio/detail/win_iocp_socket_connect_op.hpp"
-#include "asio/detail/win_iocp_socket_recvfrom_op.hpp"
-#include "asio/detail/win_iocp_socket_send_op.hpp"
-#include "asio/detail/win_iocp_socket_service_base.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-template <typename Protocol>
-class win_iocp_socket_service :
-  public service_base<win_iocp_socket_service<Protocol> >,
-  public win_iocp_socket_service_base
-{
-public:
-  // The protocol type.
-  typedef Protocol protocol_type;
-
-  // The endpoint type.
-  typedef typename Protocol::endpoint endpoint_type;
-
-  // The native type of a socket.
-  class native_handle_type
-  {
-  public:
-    native_handle_type(socket_type s)
-      : socket_(s),
-        have_remote_endpoint_(false)
-    {
-    }
-
-    native_handle_type(socket_type s, const endpoint_type& ep)
-      : socket_(s),
-        have_remote_endpoint_(true),
-        remote_endpoint_(ep)
-    {
-    }
-
-    void operator=(socket_type s)
-    {
-      socket_ = s;
-      have_remote_endpoint_ = false;
-      remote_endpoint_ = endpoint_type();
-    }
-
-    operator socket_type() const
-    {
-      return socket_;
-    }
-
-    bool have_remote_endpoint() const
-    {
-      return have_remote_endpoint_;
-    }
-
-    endpoint_type remote_endpoint() const
-    {
-      return remote_endpoint_;
-    }
-
-  private:
-    socket_type socket_;
-    bool have_remote_endpoint_;
-    endpoint_type remote_endpoint_;
-  };
-
-  // The implementation type of the socket.
-  struct implementation_type :
-    win_iocp_socket_service_base::base_implementation_type
-  {
-    // Default constructor.
-    implementation_type()
-      : protocol_(endpoint_type().protocol()),
-        have_remote_endpoint_(false),
-        remote_endpoint_()
-    {
-    }
-
-    // The protocol associated with the socket.
-    protocol_type protocol_;
-
-    // Whether we have a cached remote endpoint.
-    bool have_remote_endpoint_;
-
-    // A cached remote endpoint.
-    endpoint_type remote_endpoint_;
-  };
-
-  // Constructor.
-  win_iocp_socket_service(asio::io_context& io_context)
-    : service_base<win_iocp_socket_service<Protocol> >(io_context),
-      win_iocp_socket_service_base(io_context)
-  {
-  }
-
-  // Destroy all user-defined handler objects owned by the service.
-  void shutdown()
-  {
-    this->base_shutdown();
-  }
-
-  // Move-construct a new socket implementation.
-  void move_construct(implementation_type& impl,
-      implementation_type& other_impl)
-  {
-    this->base_move_construct(impl, other_impl);
-
-    impl.protocol_ = other_impl.protocol_;
-    other_impl.protocol_ = endpoint_type().protocol();
-
-    impl.have_remote_endpoint_ = other_impl.have_remote_endpoint_;
-    other_impl.have_remote_endpoint_ = false;
-
-    impl.remote_endpoint_ = other_impl.remote_endpoint_;
-    other_impl.remote_endpoint_ = endpoint_type();
-  }
-
-  // Move-assign from another socket implementation.
-  void move_assign(implementation_type& impl,
-      win_iocp_socket_service_base& other_service,
-      implementation_type& other_impl)
-  {
-    this->base_move_assign(impl, other_service, other_impl);
-
-    impl.protocol_ = other_impl.protocol_;
-    other_impl.protocol_ = endpoint_type().protocol();
-
-    impl.have_remote_endpoint_ = other_impl.have_remote_endpoint_;
-    other_impl.have_remote_endpoint_ = false;
-
-    impl.remote_endpoint_ = other_impl.remote_endpoint_;
-    other_impl.remote_endpoint_ = endpoint_type();
-  }
-
-  // Move-construct a new socket implementation from another protocol type.
-  template <typename Protocol1>
-  void converting_move_construct(implementation_type& impl,
-      win_iocp_socket_service<Protocol1>&,
-      typename win_iocp_socket_service<
-        Protocol1>::implementation_type& other_impl)
-  {
-    this->base_move_construct(impl, other_impl);
-
-    impl.protocol_ = protocol_type(other_impl.protocol_);
-    other_impl.protocol_ = typename Protocol1::endpoint().protocol();
-
-    impl.have_remote_endpoint_ = other_impl.have_remote_endpoint_;
-    other_impl.have_remote_endpoint_ = false;
-
-    impl.remote_endpoint_ = other_impl.remote_endpoint_;
-    other_impl.remote_endpoint_ = typename Protocol1::endpoint();
-  }
-
-  // Open a new socket implementation.
-  asio::error_code open(implementation_type& impl,
-      const protocol_type& protocol, asio::error_code& ec)
-  {
-    if (!do_open(impl, protocol.family(),
-          protocol.type(), protocol.protocol(), ec))
-    {
-      impl.protocol_ = protocol;
-      impl.have_remote_endpoint_ = false;
-      impl.remote_endpoint_ = endpoint_type();
-    }
-    return ec;
-  }
-
-  // Assign a native socket to a socket implementation.
-  asio::error_code assign(implementation_type& impl,
-      const protocol_type& protocol, const native_handle_type& native_socket,
-      asio::error_code& ec)
-  {
-    if (!do_assign(impl, protocol.type(), native_socket, ec))
-    {
-      impl.protocol_ = protocol;
-      impl.have_remote_endpoint_ = native_socket.have_remote_endpoint();
-      impl.remote_endpoint_ = native_socket.remote_endpoint();
-    }
-    return ec;
-  }
-
-  // Get the native socket representation.
-  native_handle_type native_handle(implementation_type& impl)
-  {
-    if (impl.have_remote_endpoint_)
-      return native_handle_type(impl.socket_, impl.remote_endpoint_);
-    return native_handle_type(impl.socket_);
-  }
-
-  // Bind the socket to the specified local endpoint.
-  asio::error_code bind(implementation_type& impl,
-      const endpoint_type& endpoint, asio::error_code& ec)
-  {
-    socket_ops::bind(impl.socket_, endpoint.data(), endpoint.size(), ec);
-    return ec;
-  }
-
-  // Set a socket option.
-  template <typename Option>
-  asio::error_code set_option(implementation_type& impl,
-      const Option& option, asio::error_code& ec)
-  {
-    socket_ops::setsockopt(impl.socket_, impl.state_,
-        option.level(impl.protocol_), option.name(impl.protocol_),
-        option.data(impl.protocol_), option.size(impl.protocol_), ec);
-    return ec;
-  }
-
-  // Set a socket option.
-  template <typename Option>
-  asio::error_code get_option(const implementation_type& impl,
-      Option& option, asio::error_code& ec) const
-  {
-    std::size_t size = option.size(impl.protocol_);
-    socket_ops::getsockopt(impl.socket_, impl.state_,
-        option.level(impl.protocol_), option.name(impl.protocol_),
-        option.data(impl.protocol_), &size, ec);
-    if (!ec)
-      option.resize(impl.protocol_, size);
-    return ec;
-  }
-
-  // Get the local endpoint.
-  endpoint_type local_endpoint(const implementation_type& impl,
-      asio::error_code& ec) const
-  {
-    endpoint_type endpoint;
-    std::size_t addr_len = endpoint.capacity();
-    if (socket_ops::getsockname(impl.socket_, endpoint.data(), &addr_len, ec))
-      return endpoint_type();
-    endpoint.resize(addr_len);
-    return endpoint;
-  }
-
-  // Get the remote endpoint.
-  endpoint_type remote_endpoint(const implementation_type& impl,
-      asio::error_code& ec) const
-  {
-    endpoint_type endpoint = impl.remote_endpoint_;
-    std::size_t addr_len = endpoint.capacity();
-    if (socket_ops::getpeername(impl.socket_, endpoint.data(),
-          &addr_len, impl.have_remote_endpoint_, ec))
-      return endpoint_type();
-    endpoint.resize(addr_len);
-    return endpoint;
-  }
-
-  // Disable sends or receives on the socket.
-  asio::error_code shutdown(base_implementation_type& impl,
-      socket_base::shutdown_type what, asio::error_code& ec)
-  {
-    socket_ops::shutdown(impl.socket_, what, ec);
-    return ec;
-  }
-
-  // Send a datagram to the specified endpoint. Returns the number of bytes
-  // sent.
-  template <typename ConstBufferSequence>
-  size_t send_to(implementation_type& impl, const ConstBufferSequence& buffers,
-      const endpoint_type& destination, socket_base::message_flags flags,
-      asio::error_code& ec)
-  {
-    buffer_sequence_adapter<asio::const_buffer,
-        ConstBufferSequence> bufs(buffers);
-
-    return socket_ops::sync_sendto(impl.socket_, impl.state_,
-        bufs.buffers(), bufs.count(), flags,
-        destination.data(), destination.size(), ec);
-  }
-
-  // Wait until data can be sent without blocking.
-  size_t send_to(implementation_type& impl, const null_buffers&,
-      const endpoint_type&, socket_base::message_flags,
-      asio::error_code& ec)
-  {
-    // Wait for socket to become ready.
-    socket_ops::poll_write(impl.socket_, impl.state_, -1, ec);
-
-    return 0;
-  }
-
-  // Start an asynchronous send. The data being sent must be valid for the
-  // lifetime of the asynchronous operation.
-  template <typename ConstBufferSequence, typename Handler>
-  void async_send_to(implementation_type& impl,
-      const ConstBufferSequence& buffers, const endpoint_type& destination,
-      socket_base::message_flags flags, Handler& handler)
-  {
-    // Allocate and construct an operation to wrap the handler.
-    typedef win_iocp_socket_send_op<ConstBufferSequence, Handler> op;
-    typename op::ptr p = { asio::detail::addressof(handler),
-      op::ptr::allocate(handler), 0 };
-    p.p = new (p.v) op(impl.cancel_token_, buffers, handler);
-
-    ASIO_HANDLER_CREATION((io_context_, *p.p, "socket",
-          &impl, impl.socket_, "async_send_to"));
-
-    buffer_sequence_adapter<asio::const_buffer,
-        ConstBufferSequence> bufs(buffers);
-
-    start_send_to_op(impl, bufs.buffers(), bufs.count(),
-        destination.data(), static_cast<int>(destination.size()),
-        flags, p.p);
-    p.v = p.p = 0;
-  }
-
-  // Start an asynchronous wait until data can be sent without blocking.
-  template <typename Handler>
-  void async_send_to(implementation_type& impl, const null_buffers&,
-      const endpoint_type&, socket_base::message_flags, Handler& handler)
-  {
-    // Allocate and construct an operation to wrap the handler.
-    typedef win_iocp_null_buffers_op<Handler> op;
-    typename op::ptr p = { asio::detail::addressof(handler),
-      op::ptr::allocate(handler), 0 };
-    p.p = new (p.v) op(impl.cancel_token_, handler);
-
-    ASIO_HANDLER_CREATION((io_context_, *p.p, "socket",
-          &impl, impl.socket_, "async_send_to(null_buffers)"));
-
-    start_reactor_op(impl, select_reactor::write_op, p.p);
-    p.v = p.p = 0;
-  }
-
-  // Receive a datagram with the endpoint of the sender. Returns the number of
-  // bytes received.
-  template <typename MutableBufferSequence>
-  size_t receive_from(implementation_type& impl,
-      const MutableBufferSequence& buffers,
-      endpoint_type& sender_endpoint, socket_base::message_flags flags,
-      asio::error_code& ec)
-  {
-    buffer_sequence_adapter<asio::mutable_buffer,
-        MutableBufferSequence> bufs(buffers);
-
-    std::size_t addr_len = sender_endpoint.capacity();
-    std::size_t bytes_recvd = socket_ops::sync_recvfrom(
-        impl.socket_, impl.state_, bufs.buffers(), bufs.count(),
-        flags, sender_endpoint.data(), &addr_len, ec);
-
-    if (!ec)
-      sender_endpoint.resize(addr_len);
-
-    return bytes_recvd;
-  }
-
-  // Wait until data can be received without blocking.
-  size_t receive_from(implementation_type& impl,
-      const null_buffers&, endpoint_type& sender_endpoint,
-      socket_base::message_flags, asio::error_code& ec)
-  {
-    // Wait for socket to become ready.
-    socket_ops::poll_read(impl.socket_, impl.state_, -1, ec);
-
-    // Reset endpoint since it can be given no sensible value at this time.
-    sender_endpoint = endpoint_type();
-
-    return 0;
-  }
-
-  // Start an asynchronous receive. The buffer for the data being received and
-  // the sender_endpoint object must both be valid for the lifetime of the
-  // asynchronous operation.
-  template <typename MutableBufferSequence, typename Handler>
-  void async_receive_from(implementation_type& impl,
-      const MutableBufferSequence& buffers, endpoint_type& sender_endp,
-      socket_base::message_flags flags, Handler& handler)
-  {
-    // Allocate and construct an operation to wrap the handler.
-    typedef win_iocp_socket_recvfrom_op<
-      MutableBufferSequence, endpoint_type, Handler> op;
-    typename op::ptr p = { asio::detail::addressof(handler),
-      op::ptr::allocate(handler), 0 };
-    p.p = new (p.v) op(sender_endp, impl.cancel_token_, buffers, handler);
-
-    ASIO_HANDLER_CREATION((io_context_, *p.p, "socket",
-          &impl, impl.socket_, "async_receive_from"));
-
-    buffer_sequence_adapter<asio::mutable_buffer,
-        MutableBufferSequence> bufs(buffers);
-
-    start_receive_from_op(impl, bufs.buffers(), bufs.count(),
-        sender_endp.data(), flags, &p.p->endpoint_size(), p.p);
-    p.v = p.p = 0;
-  }
-
-  // Wait until data can be received without blocking.
-  template <typename Handler>
-  void async_receive_from(implementation_type& impl,
-      const null_buffers&, endpoint_type& sender_endpoint,
-      socket_base::message_flags flags, Handler& handler)
-  {
-    // Allocate and construct an operation to wrap the handler.
-    typedef win_iocp_null_buffers_op<Handler> op;
-    typename op::ptr p = { asio::detail::addressof(handler),
-      op::ptr::allocate(handler), 0 };
-    p.p = new (p.v) op(impl.cancel_token_, handler);
-
-    ASIO_HANDLER_CREATION((io_context_, *p.p, "socket",
-          &impl, impl.socket_, "async_receive_from(null_buffers)"));
-
-    // Reset endpoint since it can be given no sensible value at this time.
-    sender_endpoint = endpoint_type();
-
-    start_null_buffers_receive_op(impl, flags, p.p);
-    p.v = p.p = 0;
-  }
-
-  // Accept a new connection.
-  template <typename Socket>
-  asio::error_code accept(implementation_type& impl, Socket& peer,
-      endpoint_type* peer_endpoint, asio::error_code& ec)
-  {
-    // We cannot accept a socket that is already open.
-    if (peer.is_open())
-    {
-      ec = asio::error::already_open;
-      return ec;
-    }
-
-    std::size_t addr_len = peer_endpoint ? peer_endpoint->capacity() : 0;
-    socket_holder new_socket(socket_ops::sync_accept(impl.socket_,
-          impl.state_, peer_endpoint ? peer_endpoint->data() : 0,
-          peer_endpoint ? &addr_len : 0, ec));
-
-    // On success, assign new connection to peer socket object.
-    if (new_socket.get() != invalid_socket)
-    {
-      if (peer_endpoint)
-        peer_endpoint->resize(addr_len);
-      peer.assign(impl.protocol_, new_socket.get(), ec);
-      if (!ec)
-        new_socket.release();
-    }
-
-    return ec;
-  }
-
-#if defined(ASIO_HAS_MOVE)
-  // Accept a new connection.
-  typename Protocol::socket accept(implementation_type& impl,
-      io_context* peer_io_context, endpoint_type* peer_endpoint,
-      asio::error_code& ec)
-  {
-    typename Protocol::socket peer(
-        peer_io_context ? *peer_io_context : io_context_);
-
-    std::size_t addr_len = peer_endpoint ? peer_endpoint->capacity() : 0;
-    socket_holder new_socket(socket_ops::sync_accept(impl.socket_,
-          impl.state_, peer_endpoint ? peer_endpoint->data() : 0,
-          peer_endpoint ? &addr_len : 0, ec));
-
-    // On success, assign new connection to peer socket object.
-    if (new_socket.get() != invalid_socket)
-    {
-      if (peer_endpoint)
-        peer_endpoint->resize(addr_len);
-      peer.assign(impl.protocol_, new_socket.get(), ec);
-      if (!ec)
-        new_socket.release();
-    }
-
-    return peer;
-  }
-#endif // defined(ASIO_HAS_MOVE)
-
-  // Start an asynchronous accept. The peer and peer_endpoint objects
-  // must be valid until the accept's handler is invoked.
-  template <typename Socket, typename Handler>
-  void async_accept(implementation_type& impl, Socket& peer,
-      endpoint_type* peer_endpoint, Handler& handler)
-  {
-    // Allocate and construct an operation to wrap the handler.
-    typedef win_iocp_socket_accept_op<Socket, protocol_type, Handler> op;
-    typename op::ptr p = { asio::detail::addressof(handler),
-      op::ptr::allocate(handler), 0 };
-    bool enable_connection_aborted =
-      (impl.state_ & socket_ops::enable_connection_aborted) != 0;
-    p.p = new (p.v) op(*this, impl.socket_, peer, impl.protocol_,
-        peer_endpoint, enable_connection_aborted, handler);
-
-    ASIO_HANDLER_CREATION((io_context_, *p.p, "socket",
-          &impl, impl.socket_, "async_accept"));
-
-    start_accept_op(impl, peer.is_open(), p.p->new_socket(),
-        impl.protocol_.family(), impl.protocol_.type(),
-        impl.protocol_.protocol(), p.p->output_buffer(),
-        p.p->address_length(), p.p);
-    p.v = p.p = 0;
-  }
-
-#if defined(ASIO_HAS_MOVE)
-  // Start an asynchronous accept. The peer and peer_endpoint objects
-  // must be valid until the accept's handler is invoked.
-  template <typename Handler>
-  void async_accept(implementation_type& impl,
-      asio::io_context* peer_io_context,
-      endpoint_type* peer_endpoint, Handler& handler)
-  {
-    // Allocate and construct an operation to wrap the handler.
-    typedef win_iocp_socket_move_accept_op<protocol_type, Handler> op;
-    typename op::ptr p = { asio::detail::addressof(handler),
-      op::ptr::allocate(handler), 0 };
-    bool enable_connection_aborted =
-      (impl.state_ & socket_ops::enable_connection_aborted) != 0;
-    p.p = new (p.v) op(*this, impl.socket_, impl.protocol_,
-        peer_io_context ? *peer_io_context : io_context_,
-        peer_endpoint, enable_connection_aborted, handler);
-
-    ASIO_HANDLER_CREATION((io_context_, *p.p, "socket",
-          &impl, impl.socket_, "async_accept"));
-
-    start_accept_op(impl, false, p.p->new_socket(),
-        impl.protocol_.family(), impl.protocol_.type(),
-        impl.protocol_.protocol(), p.p->output_buffer(),
-        p.p->address_length(), p.p);
-    p.v = p.p = 0;
-  }
-#endif // defined(ASIO_HAS_MOVE)
-
-  // Connect the socket to the specified endpoint.
-  asio::error_code connect(implementation_type& impl,
-      const endpoint_type& peer_endpoint, asio::error_code& ec)
-  {
-    socket_ops::sync_connect(impl.socket_,
-        peer_endpoint.data(), peer_endpoint.size(), ec);
-    return ec;
-  }
-
-  // Start an asynchronous connect.
-  template <typename Handler>
-  void async_connect(implementation_type& impl,
-      const endpoint_type& peer_endpoint, Handler& handler)
-  {
-    // Allocate and construct an operation to wrap the handler.
-    typedef win_iocp_socket_connect_op<Handler> op;
-    typename op::ptr p = { asio::detail::addressof(handler),
-      op::ptr::allocate(handler), 0 };
-    p.p = new (p.v) op(impl.socket_, handler);
-
-    ASIO_HANDLER_CREATION((io_context_, *p.p, "socket",
-          &impl, impl.socket_, "async_connect"));
-
-    start_connect_op(impl, impl.protocol_.family(), impl.protocol_.type(),
-        peer_endpoint.data(), static_cast<int>(peer_endpoint.size()), p.p);
-    p.v = p.p = 0;
-  }
-};
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // defined(ASIO_HAS_IOCP)
-
-#endif // ASIO_DETAIL_WIN_IOCP_SOCKET_SERVICE_HPP
diff --git a/lib/asio/detail/win_iocp_socket_service_base.hpp b/lib/asio/detail/win_iocp_socket_service_base.hpp
deleted file mode 100644
index ef1d718..0000000
--- a/lib/asio/detail/win_iocp_socket_service_base.hpp
+++ /dev/null
@@ -1,591 +0,0 @@
-//
-// detail/win_iocp_socket_service_base.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_WIN_IOCP_SOCKET_SERVICE_BASE_HPP
-#define ASIO_DETAIL_WIN_IOCP_SOCKET_SERVICE_BASE_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-
-#if defined(ASIO_HAS_IOCP)
-
-#include "asio/error.hpp"
-#include "asio/io_context.hpp"
-#include "asio/socket_base.hpp"
-#include "asio/detail/bind_handler.hpp"
-#include "asio/detail/buffer_sequence_adapter.hpp"
-#include "asio/detail/fenced_block.hpp"
-#include "asio/detail/handler_alloc_helpers.hpp"
-#include "asio/detail/handler_invoke_helpers.hpp"
-#include "asio/detail/memory.hpp"
-#include "asio/detail/mutex.hpp"
-#include "asio/detail/operation.hpp"
-#include "asio/detail/reactor_op.hpp"
-#include "asio/detail/select_reactor.hpp"
-#include "asio/detail/socket_holder.hpp"
-#include "asio/detail/socket_ops.hpp"
-#include "asio/detail/socket_types.hpp"
-#include "asio/detail/win_iocp_io_context.hpp"
-#include "asio/detail/win_iocp_null_buffers_op.hpp"
-#include "asio/detail/win_iocp_socket_connect_op.hpp"
-#include "asio/detail/win_iocp_socket_send_op.hpp"
-#include "asio/detail/win_iocp_socket_recv_op.hpp"
-#include "asio/detail/win_iocp_socket_recvmsg_op.hpp"
-#include "asio/detail/win_iocp_wait_op.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-class win_iocp_socket_service_base
-{
-public:
-  // The implementation type of the socket.
-  struct base_implementation_type
-  {
-    // The native socket representation.
-    socket_type socket_;
-
-    // The current state of the socket.
-    socket_ops::state_type state_;
-
-    // We use a shared pointer as a cancellation token here to work around the
-    // broken Windows support for cancellation. MSDN says that when you call
-    // closesocket any outstanding WSARecv or WSASend operations will complete
-    // with the error ERROR_OPERATION_ABORTED. In practice they complete with
-    // ERROR_NETNAME_DELETED, which means you can't tell the difference between
-    // a local cancellation and the socket being hard-closed by the peer.
-    socket_ops::shared_cancel_token_type cancel_token_;
-
-    // Per-descriptor data used by the reactor.
-    select_reactor::per_descriptor_data reactor_data_;
-
-#if defined(ASIO_ENABLE_CANCELIO)
-    // The ID of the thread from which it is safe to cancel asynchronous
-    // operations. 0 means no asynchronous operations have been started yet.
-    // ~0 means asynchronous operations have been started from more than one
-    // thread, and cancellation is not supported for the socket.
-    DWORD safe_cancellation_thread_id_;
-#endif // defined(ASIO_ENABLE_CANCELIO)
-
-    // Pointers to adjacent socket implementations in linked list.
-    base_implementation_type* next_;
-    base_implementation_type* prev_;
-  };
-
-  // Constructor.
-  ASIO_DECL win_iocp_socket_service_base(
-      asio::io_context& io_context);
-
-  // Destroy all user-defined handler objects owned by the service.
-  ASIO_DECL void base_shutdown();
-
-  // Construct a new socket implementation.
-  ASIO_DECL void construct(base_implementation_type& impl);
-
-  // Move-construct a new socket implementation.
-  ASIO_DECL void base_move_construct(base_implementation_type& impl,
-      base_implementation_type& other_impl);
-
-  // Move-assign from another socket implementation.
-  ASIO_DECL void base_move_assign(base_implementation_type& impl,
-      win_iocp_socket_service_base& other_service,
-      base_implementation_type& other_impl);
-
-  // Destroy a socket implementation.
-  ASIO_DECL void destroy(base_implementation_type& impl);
-
-  // Determine whether the socket is open.
-  bool is_open(const base_implementation_type& impl) const
-  {
-    return impl.socket_ != invalid_socket;
-  }
-
-  // Destroy a socket implementation.
-  ASIO_DECL asio::error_code close(
-      base_implementation_type& impl, asio::error_code& ec);
-
-  // Release ownership of the socket.
-  ASIO_DECL socket_type release(
-      base_implementation_type& impl, asio::error_code& ec);
-
-  // Cancel all operations associated with the socket.
-  ASIO_DECL asio::error_code cancel(
-      base_implementation_type& impl, asio::error_code& ec);
-
-  // Determine whether the socket is at the out-of-band data mark.
-  bool at_mark(const base_implementation_type& impl,
-      asio::error_code& ec) const
-  {
-    return socket_ops::sockatmark(impl.socket_, ec);
-  }
-
-  // Determine the number of bytes available for reading.
-  std::size_t available(const base_implementation_type& impl,
-      asio::error_code& ec) const
-  {
-    return socket_ops::available(impl.socket_, ec);
-  }
-
-  // Place the socket into the state where it will listen for new connections.
-  asio::error_code listen(base_implementation_type& impl,
-      int backlog, asio::error_code& ec)
-  {
-    socket_ops::listen(impl.socket_, backlog, ec);
-    return ec;
-  }
-
-  // Perform an IO control command on the socket.
-  template <typename IO_Control_Command>
-  asio::error_code io_control(base_implementation_type& impl,
-      IO_Control_Command& command, asio::error_code& ec)
-  {
-    socket_ops::ioctl(impl.socket_, impl.state_, command.name(),
-        static_cast<ioctl_arg_type*>(command.data()), ec);
-    return ec;
-  }
-
-  // Gets the non-blocking mode of the socket.
-  bool non_blocking(const base_implementation_type& impl) const
-  {
-    return (impl.state_ & socket_ops::user_set_non_blocking) != 0;
-  }
-
-  // Sets the non-blocking mode of the socket.
-  asio::error_code non_blocking(base_implementation_type& impl,
-      bool mode, asio::error_code& ec)
-  {
-    socket_ops::set_user_non_blocking(impl.socket_, impl.state_, mode, ec);
-    return ec;
-  }
-
-  // Gets the non-blocking mode of the native socket implementation.
-  bool native_non_blocking(const base_implementation_type& impl) const
-  {
-    return (impl.state_ & socket_ops::internal_non_blocking) != 0;
-  }
-
-  // Sets the non-blocking mode of the native socket implementation.
-  asio::error_code native_non_blocking(base_implementation_type& impl,
-      bool mode, asio::error_code& ec)
-  {
-    socket_ops::set_internal_non_blocking(impl.socket_, impl.state_, mode, ec);
-    return ec;
-  }
-
-  // Wait for the socket to become ready to read, ready to write, or to have
-  // pending error conditions.
-  asio::error_code wait(base_implementation_type& impl,
-      socket_base::wait_type w, asio::error_code& ec)
-  {
-    switch (w)
-    {
-    case socket_base::wait_read:
-      socket_ops::poll_read(impl.socket_, impl.state_, -1, ec);
-      break;
-    case socket_base::wait_write:
-      socket_ops::poll_write(impl.socket_, impl.state_, -1, ec);
-      break;
-    case socket_base::wait_error:
-      socket_ops::poll_error(impl.socket_, impl.state_, -1, ec);
-      break;
-    default:
-      ec = asio::error::invalid_argument;
-      break;
-    }
-
-    return ec;
-  }
-
-  // Asynchronously wait for the socket to become ready to read, ready to
-  // write, or to have pending error conditions.
-  template <typename Handler>
-  void async_wait(base_implementation_type& impl,
-      socket_base::wait_type w, Handler& handler)
-  {
-    bool is_continuation =
-      asio_handler_cont_helpers::is_continuation(handler);
-
-    // Allocate and construct an operation to wrap the handler.
-    typedef win_iocp_wait_op<Handler> op;
-    typename op::ptr p = { asio::detail::addressof(handler),
-      op::ptr::allocate(handler), 0 };
-    p.p = new (p.v) op(impl.cancel_token_, handler);
-
-    ASIO_HANDLER_CREATION((io_context_, *p.p, "socket",
-          &impl, impl.socket_, "async_wait"));
-
-    switch (w)
-    {
-      case socket_base::wait_read:
-        start_null_buffers_receive_op(impl, 0, p.p);
-        break;
-      case socket_base::wait_write:
-        start_reactor_op(impl, select_reactor::write_op, p.p);
-        break;
-      case socket_base::wait_error:
-        start_reactor_op(impl, select_reactor::except_op, p.p);
-        break;
-      default:
-        p.p->ec_ = asio::error::invalid_argument;
-        iocp_service_.post_immediate_completion(p.p, is_continuation);
-        break;
-    }
-
-    p.v = p.p = 0;
-  }
-
-  // Send the given data to the peer. Returns the number of bytes sent.
-  template <typename ConstBufferSequence>
-  size_t send(base_implementation_type& impl,
-      const ConstBufferSequence& buffers,
-      socket_base::message_flags flags, asio::error_code& ec)
-  {
-    buffer_sequence_adapter<asio::const_buffer,
-        ConstBufferSequence> bufs(buffers);
-
-    return socket_ops::sync_send(impl.socket_, impl.state_,
-        bufs.buffers(), bufs.count(), flags, bufs.all_empty(), ec);
-  }
-
-  // Wait until data can be sent without blocking.
-  size_t send(base_implementation_type& impl, const null_buffers&,
-      socket_base::message_flags, asio::error_code& ec)
-  {
-    // Wait for socket to become ready.
-    socket_ops::poll_write(impl.socket_, impl.state_, -1, ec);
-
-    return 0;
-  }
-
-  // Start an asynchronous send. The data being sent must be valid for the
-  // lifetime of the asynchronous operation.
-  template <typename ConstBufferSequence, typename Handler>
-  void async_send(base_implementation_type& impl,
-      const ConstBufferSequence& buffers,
-      socket_base::message_flags flags, Handler& handler)
-  {
-    // Allocate and construct an operation to wrap the handler.
-    typedef win_iocp_socket_send_op<ConstBufferSequence, Handler> op;
-    typename op::ptr p = { asio::detail::addressof(handler),
-      op::ptr::allocate(handler), 0 };
-    p.p = new (p.v) op(impl.cancel_token_, buffers, handler);
-
-    ASIO_HANDLER_CREATION((io_context_, *p.p, "socket",
-          &impl, impl.socket_, "async_send"));
-
-    buffer_sequence_adapter<asio::const_buffer,
-        ConstBufferSequence> bufs(buffers);
-
-    start_send_op(impl, bufs.buffers(), bufs.count(), flags,
-        (impl.state_ & socket_ops::stream_oriented) != 0 && bufs.all_empty(),
-        p.p);
-    p.v = p.p = 0;
-  }
-
-  // Start an asynchronous wait until data can be sent without blocking.
-  template <typename Handler>
-  void async_send(base_implementation_type& impl, const null_buffers&,
-      socket_base::message_flags, Handler& handler)
-  {
-    // Allocate and construct an operation to wrap the handler.
-    typedef win_iocp_null_buffers_op<Handler> op;
-    typename op::ptr p = { asio::detail::addressof(handler),
-      op::ptr::allocate(handler), 0 };
-    p.p = new (p.v) op(impl.cancel_token_, handler);
-
-    ASIO_HANDLER_CREATION((io_context_, *p.p, "socket",
-          &impl, impl.socket_, "async_send(null_buffers)"));
-
-    start_reactor_op(impl, select_reactor::write_op, p.p);
-    p.v = p.p = 0;
-  }
-
-  // Receive some data from the peer. Returns the number of bytes received.
-  template <typename MutableBufferSequence>
-  size_t receive(base_implementation_type& impl,
-      const MutableBufferSequence& buffers,
-      socket_base::message_flags flags, asio::error_code& ec)
-  {
-    buffer_sequence_adapter<asio::mutable_buffer,
-        MutableBufferSequence> bufs(buffers);
-
-    return socket_ops::sync_recv(impl.socket_, impl.state_,
-        bufs.buffers(), bufs.count(), flags, bufs.all_empty(), ec);
-  }
-
-  // Wait until data can be received without blocking.
-  size_t receive(base_implementation_type& impl, const null_buffers&,
-      socket_base::message_flags, asio::error_code& ec)
-  {
-    // Wait for socket to become ready.
-    socket_ops::poll_read(impl.socket_, impl.state_, -1, ec);
-
-    return 0;
-  }
-
-  // Start an asynchronous receive. The buffer for the data being received
-  // must be valid for the lifetime of the asynchronous operation.
-  template <typename MutableBufferSequence, typename Handler>
-  void async_receive(base_implementation_type& impl,
-      const MutableBufferSequence& buffers,
-      socket_base::message_flags flags, Handler& handler)
-  {
-    // Allocate and construct an operation to wrap the handler.
-    typedef win_iocp_socket_recv_op<MutableBufferSequence, Handler> op;
-    typename op::ptr p = { asio::detail::addressof(handler),
-      op::ptr::allocate(handler), 0 };
-    p.p = new (p.v) op(impl.state_, impl.cancel_token_, buffers, handler);
-
-    ASIO_HANDLER_CREATION((io_context_, *p.p, "socket",
-          &impl, impl.socket_, "async_receive"));
-
-    buffer_sequence_adapter<asio::mutable_buffer,
-        MutableBufferSequence> bufs(buffers);
-
-    start_receive_op(impl, bufs.buffers(), bufs.count(), flags,
-        (impl.state_ & socket_ops::stream_oriented) != 0 && bufs.all_empty(),
-        p.p);
-    p.v = p.p = 0;
-  }
-
-  // Wait until data can be received without blocking.
-  template <typename Handler>
-  void async_receive(base_implementation_type& impl, const null_buffers&,
-      socket_base::message_flags flags, Handler& handler)
-  {
-    // Allocate and construct an operation to wrap the handler.
-    typedef win_iocp_null_buffers_op<Handler> op;
-    typename op::ptr p = { asio::detail::addressof(handler),
-      op::ptr::allocate(handler), 0 };
-    p.p = new (p.v) op(impl.cancel_token_, handler);
-
-    ASIO_HANDLER_CREATION((io_context_, *p.p, "socket",
-          &impl, impl.socket_, "async_receive(null_buffers)"));
-
-    start_null_buffers_receive_op(impl, flags, p.p);
-    p.v = p.p = 0;
-  }
-
-  // Receive some data with associated flags. Returns the number of bytes
-  // received.
-  template <typename MutableBufferSequence>
-  size_t receive_with_flags(base_implementation_type& impl,
-      const MutableBufferSequence& buffers,
-      socket_base::message_flags in_flags,
-      socket_base::message_flags& out_flags, asio::error_code& ec)
-  {
-    buffer_sequence_adapter<asio::mutable_buffer,
-        MutableBufferSequence> bufs(buffers);
-
-    return socket_ops::sync_recvmsg(impl.socket_, impl.state_,
-        bufs.buffers(), bufs.count(), in_flags, out_flags, ec);
-  }
-
-  // Wait until data can be received without blocking.
-  size_t receive_with_flags(base_implementation_type& impl,
-      const null_buffers&, socket_base::message_flags,
-      socket_base::message_flags& out_flags, asio::error_code& ec)
-  {
-    // Wait for socket to become ready.
-    socket_ops::poll_read(impl.socket_, impl.state_, -1, ec);
-
-    // Clear out_flags, since we cannot give it any other sensible value when
-    // performing a null_buffers operation.
-    out_flags = 0;
-
-    return 0;
-  }
-
-  // Start an asynchronous receive. The buffer for the data being received
-  // must be valid for the lifetime of the asynchronous operation.
-  template <typename MutableBufferSequence, typename Handler>
-  void async_receive_with_flags(base_implementation_type& impl,
-      const MutableBufferSequence& buffers, socket_base::message_flags in_flags,
-      socket_base::message_flags& out_flags, Handler& handler)
-  {
-    // Allocate and construct an operation to wrap the handler.
-    typedef win_iocp_socket_recvmsg_op<MutableBufferSequence, Handler> op;
-    typename op::ptr p = { asio::detail::addressof(handler),
-      op::ptr::allocate(handler), 0 };
-    p.p = new (p.v) op(impl.cancel_token_, buffers, out_flags, handler);
-
-    ASIO_HANDLER_CREATION((io_context_, *p.p, "socket",
-          &impl, impl.socket_, "async_receive_with_flags"));
-
-    buffer_sequence_adapter<asio::mutable_buffer,
-        MutableBufferSequence> bufs(buffers);
-
-    start_receive_op(impl, bufs.buffers(), bufs.count(), in_flags, false, p.p);
-    p.v = p.p = 0;
-  }
-
-  // Wait until data can be received without blocking.
-  template <typename Handler>
-  void async_receive_with_flags(base_implementation_type& impl,
-      const null_buffers&, socket_base::message_flags in_flags,
-      socket_base::message_flags& out_flags, Handler& handler)
-  {
-    // Allocate and construct an operation to wrap the handler.
-    typedef win_iocp_null_buffers_op<Handler> op;
-    typename op::ptr p = { asio::detail::addressof(handler),
-      op::ptr::allocate(handler), 0 };
-    p.p = new (p.v) op(impl.cancel_token_, handler);
-
-    ASIO_HANDLER_CREATION((io_context_, *p.p, "socket",
-          &impl, impl.socket_, "async_receive_with_flags(null_buffers)"));
-
-    // Reset out_flags since it can be given no sensible value at this time.
-    out_flags = 0;
-
-    start_null_buffers_receive_op(impl, in_flags, p.p);
-    p.v = p.p = 0;
-  }
-
-  // Helper function to restart an asynchronous accept operation.
-  ASIO_DECL void restart_accept_op(socket_type s,
-      socket_holder& new_socket, int family, int type, int protocol,
-      void* output_buffer, DWORD address_length, operation* op);
-
-protected:
-  // Open a new socket implementation.
-  ASIO_DECL asio::error_code do_open(
-      base_implementation_type& impl, int family, int type,
-      int protocol, asio::error_code& ec);
-
-  // Assign a native socket to a socket implementation.
-  ASIO_DECL asio::error_code do_assign(
-      base_implementation_type& impl, int type,
-      socket_type native_socket, asio::error_code& ec);
-
-  // Helper function to start an asynchronous send operation.
-  ASIO_DECL void start_send_op(base_implementation_type& impl,
-      WSABUF* buffers, std::size_t buffer_count,
-      socket_base::message_flags flags, bool noop, operation* op);
-
-  // Helper function to start an asynchronous send_to operation.
-  ASIO_DECL void start_send_to_op(base_implementation_type& impl,
-      WSABUF* buffers, std::size_t buffer_count,
-      const socket_addr_type* addr, int addrlen,
-      socket_base::message_flags flags, operation* op);
-
-  // Helper function to start an asynchronous receive operation.
-  ASIO_DECL void start_receive_op(base_implementation_type& impl,
-      WSABUF* buffers, std::size_t buffer_count,
-      socket_base::message_flags flags, bool noop, operation* op);
-
-  // Helper function to start an asynchronous null_buffers receive operation.
-  ASIO_DECL void start_null_buffers_receive_op(
-      base_implementation_type& impl,
-      socket_base::message_flags flags, reactor_op* op);
-
-  // Helper function to start an asynchronous receive_from operation.
-  ASIO_DECL void start_receive_from_op(base_implementation_type& impl,
-      WSABUF* buffers, std::size_t buffer_count, socket_addr_type* addr,
-      socket_base::message_flags flags, int* addrlen, operation* op);
-
-  // Helper function to start an asynchronous accept operation.
-  ASIO_DECL void start_accept_op(base_implementation_type& impl,
-      bool peer_is_open, socket_holder& new_socket, int family, int type,
-      int protocol, void* output_buffer, DWORD address_length, operation* op);
-
-  // Start an asynchronous read or write operation using the reactor.
-  ASIO_DECL void start_reactor_op(base_implementation_type& impl,
-      int op_type, reactor_op* op);
-
-  // Start the asynchronous connect operation using the reactor.
-  ASIO_DECL void start_connect_op(base_implementation_type& impl,
-      int family, int type, const socket_addr_type* remote_addr,
-      std::size_t remote_addrlen, win_iocp_socket_connect_op_base* op);
-
-  // Helper function to close a socket when the associated object is being
-  // destroyed.
-  ASIO_DECL void close_for_destruction(base_implementation_type& impl);
-
-  // Update the ID of the thread from which cancellation is safe.
-  ASIO_DECL void update_cancellation_thread_id(
-      base_implementation_type& impl);
-
-  // Helper function to get the reactor. If no reactor has been created yet, a
-  // new one is obtained from the io_context and a pointer to it is cached in
-  // this service.
-  ASIO_DECL select_reactor& get_reactor();
-
-  // The type of a ConnectEx function pointer, as old SDKs may not provide it.
-  typedef BOOL (PASCAL *connect_ex_fn)(SOCKET,
-      const socket_addr_type*, int, void*, DWORD, DWORD*, OVERLAPPED*);
-
-  // Helper function to get the ConnectEx pointer. If no ConnectEx pointer has
-  // been obtained yet, one is obtained using WSAIoctl and the pointer is
-  // cached. Returns a null pointer if ConnectEx is not available.
-  ASIO_DECL connect_ex_fn get_connect_ex(
-      base_implementation_type& impl, int type);
-
-  // The type of a NtSetInformationFile function pointer.
-  typedef LONG (NTAPI *nt_set_info_fn)(HANDLE, ULONG_PTR*, void*, ULONG, ULONG);
-
-  // Helper function to get the NtSetInformationFile function pointer. If no
-  // NtSetInformationFile pointer has been obtained yet, one is obtained using
-  // GetProcAddress and the pointer is cached. Returns a null pointer if
-  // NtSetInformationFile is not available.
-  ASIO_DECL nt_set_info_fn get_nt_set_info();
-
-  // Helper function to emulate InterlockedCompareExchangePointer functionality
-  // for:
-  // - very old Platform SDKs; and
-  // - platform SDKs where MSVC's /Wp64 option causes spurious warnings.
-  ASIO_DECL void* interlocked_compare_exchange_pointer(
-      void** dest, void* exch, void* cmp);
-
-  // Helper function to emulate InterlockedExchangePointer functionality for:
-  // - very old Platform SDKs; and
-  // - platform SDKs where MSVC's /Wp64 option causes spurious warnings.
-  ASIO_DECL void* interlocked_exchange_pointer(void** dest, void* val);
-
-  // The io_context used to obtain the reactor, if required.
-  asio::io_context& io_context_;
-
-  // The IOCP service used for running asynchronous operations and dispatching
-  // handlers.
-  win_iocp_io_context& iocp_service_;
-
-  // The reactor used for performing connect operations. This object is created
-  // only if needed.
-  select_reactor* reactor_;
-
-  // Pointer to ConnectEx implementation.
-  void* connect_ex_;
-
-  // Pointer to NtSetInformationFile implementation.
-  void* nt_set_info_;
-
-  // Mutex to protect access to the linked list of implementations. 
-  asio::detail::mutex mutex_;
-
-  // The head of a linked list of all implementations.
-  base_implementation_type* impl_list_;
-};
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#if defined(ASIO_HEADER_ONLY)
-# include "asio/detail/impl/win_iocp_socket_service_base.ipp"
-#endif // defined(ASIO_HEADER_ONLY)
-
-#endif // defined(ASIO_HAS_IOCP)
-
-#endif // ASIO_DETAIL_WIN_IOCP_SOCKET_SERVICE_BASE_HPP
diff --git a/lib/asio/detail/win_iocp_thread_info.hpp b/lib/asio/detail/win_iocp_thread_info.hpp
deleted file mode 100644
index 13181e2..0000000
--- a/lib/asio/detail/win_iocp_thread_info.hpp
+++ /dev/null
@@ -1,34 +0,0 @@
-//
-// detail/win_iocp_thread_info.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_WIN_IOCP_THREAD_INFO_HPP
-#define ASIO_DETAIL_WIN_IOCP_THREAD_INFO_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/thread_info_base.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-struct win_iocp_thread_info : public thread_info_base
-{
-};
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // ASIO_DETAIL_WIN_IOCP_THREAD_INFO_HPP
diff --git a/lib/asio/detail/win_iocp_wait_op.hpp b/lib/asio/detail/win_iocp_wait_op.hpp
deleted file mode 100644
index 472eea3..0000000
--- a/lib/asio/detail/win_iocp_wait_op.hpp
+++ /dev/null
@@ -1,121 +0,0 @@
-//
-// detail/win_iocp_wait_op.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_WIN_IOCP_WAIT_OP_HPP
-#define ASIO_DETAIL_WIN_IOCP_WAIT_OP_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-
-#if defined(ASIO_HAS_IOCP)
-
-#include "asio/detail/bind_handler.hpp"
-#include "asio/detail/buffer_sequence_adapter.hpp"
-#include "asio/detail/fenced_block.hpp"
-#include "asio/detail/handler_alloc_helpers.hpp"
-#include "asio/detail/handler_invoke_helpers.hpp"
-#include "asio/detail/memory.hpp"
-#include "asio/detail/reactor_op.hpp"
-#include "asio/detail/socket_ops.hpp"
-#include "asio/error.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-template <typename Handler>
-class win_iocp_wait_op : public reactor_op
-{
-public:
-  ASIO_DEFINE_HANDLER_PTR(win_iocp_wait_op);
-
-  win_iocp_wait_op(socket_ops::weak_cancel_token_type cancel_token,
-      Handler& handler)
-    : reactor_op(&win_iocp_wait_op::do_perform,
-        &win_iocp_wait_op::do_complete),
-      cancel_token_(cancel_token),
-      handler_(ASIO_MOVE_CAST(Handler)(handler))
-  {
-    handler_work<Handler>::start(handler_);
-  }
-
-  static status do_perform(reactor_op*)
-  {
-    return done;
-  }
-
-  static void do_complete(void* owner, operation* base,
-      const asio::error_code& result_ec,
-      std::size_t /*bytes_transferred*/)
-  {
-    asio::error_code ec(result_ec);
-
-    // Take ownership of the operation object.
-    win_iocp_wait_op* o(static_cast<win_iocp_wait_op*>(base));
-    ptr p = { asio::detail::addressof(o->handler_), o, o };
-    handler_work<Handler> w(o->handler_);
-
-    ASIO_HANDLER_COMPLETION((*o));
-
-    // The reactor may have stored a result in the operation object.
-    if (o->ec_)
-      ec = o->ec_;
-
-    // Map non-portable errors to their portable counterparts.
-    if (ec.value() == ERROR_NETNAME_DELETED)
-    {
-      if (o->cancel_token_.expired())
-        ec = asio::error::operation_aborted;
-      else
-        ec = asio::error::connection_reset;
-    }
-    else if (ec.value() == ERROR_PORT_UNREACHABLE)
-    {
-      ec = asio::error::connection_refused;
-    }
-
-    // Make a copy of the handler so that the memory can be deallocated before
-    // the upcall is made. Even if we're not about to make an upcall, a
-    // sub-object of the handler may be the true owner of the memory associated
-    // with the handler. Consequently, a local copy of the handler is required
-    // to ensure that any owning sub-object remains valid until after we have
-    // deallocated the memory here.
-    detail::binder1<Handler, asio::error_code>
-      handler(o->handler_, ec);
-    p.h = asio::detail::addressof(handler.handler_);
-    p.reset();
-
-    // Make the upcall if required.
-    if (owner)
-    {
-      fenced_block b(fenced_block::half);
-      ASIO_HANDLER_INVOCATION_BEGIN((handler.arg1_));
-      w.complete(handler, handler.handler_);
-      ASIO_HANDLER_INVOCATION_END;
-    }
-  }
-
-private:
-  socket_ops::weak_cancel_token_type cancel_token_;
-  Handler handler_;
-};
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // defined(ASIO_HAS_IOCP)
-
-#endif // ASIO_DETAIL_WIN_IOCP_WAIT_OP_HPP
diff --git a/lib/asio/detail/win_mutex.hpp b/lib/asio/detail/win_mutex.hpp
deleted file mode 100644
index ce52a2f..0000000
--- a/lib/asio/detail/win_mutex.hpp
+++ /dev/null
@@ -1,78 +0,0 @@
-//
-// detail/win_mutex.hpp
-// ~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_WIN_MUTEX_HPP
-#define ASIO_DETAIL_WIN_MUTEX_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-
-#if defined(ASIO_WINDOWS)
-
-#include "asio/detail/noncopyable.hpp"
-#include "asio/detail/scoped_lock.hpp"
-#include "asio/detail/socket_types.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-class win_mutex
-  : private noncopyable
-{
-public:
-  typedef asio::detail::scoped_lock<win_mutex> scoped_lock;
-
-  // Constructor.
-  ASIO_DECL win_mutex();
-
-  // Destructor.
-  ~win_mutex()
-  {
-    ::DeleteCriticalSection(&crit_section_);
-  }
-
-  // Lock the mutex.
-  void lock()
-  {
-    ::EnterCriticalSection(&crit_section_);
-  }
-
-  // Unlock the mutex.
-  void unlock()
-  {
-    ::LeaveCriticalSection(&crit_section_);
-  }
-
-private:
-  // Initialisation must be performed in a separate function to the constructor
-  // since the compiler does not support the use of structured exceptions and
-  // C++ exceptions in the same function.
-  ASIO_DECL int do_init();
-
-  ::CRITICAL_SECTION crit_section_;
-};
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#if defined(ASIO_HEADER_ONLY)
-# include "asio/detail/impl/win_mutex.ipp"
-#endif // defined(ASIO_HEADER_ONLY)
-
-#endif // defined(ASIO_WINDOWS)
-
-#endif // ASIO_DETAIL_WIN_MUTEX_HPP
diff --git a/lib/asio/detail/win_object_handle_service.hpp b/lib/asio/detail/win_object_handle_service.hpp
deleted file mode 100644
index 1d8abc9..0000000
--- a/lib/asio/detail/win_object_handle_service.hpp
+++ /dev/null
@@ -1,184 +0,0 @@
-//
-// detail/win_object_handle_service.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-// Copyright (c) 2011 Boris Schaeling (boris@highscore.de)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_WIN_OBJECT_HANDLE_SERVICE_HPP
-#define ASIO_DETAIL_WIN_OBJECT_HANDLE_SERVICE_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-
-#if defined(ASIO_HAS_WINDOWS_OBJECT_HANDLE)
-
-#include "asio/detail/handler_alloc_helpers.hpp"
-#include "asio/detail/memory.hpp"
-#include "asio/detail/wait_handler.hpp"
-#include "asio/error.hpp"
-#include "asio/io_context.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-class win_object_handle_service :
-  public service_base<win_object_handle_service>
-{
-public:
-  // The native type of an object handle.
-  typedef HANDLE native_handle_type;
-
-  // The implementation type of the object handle.
-  class implementation_type
-  {
-   public:
-    // Default constructor.
-    implementation_type()
-      : handle_(INVALID_HANDLE_VALUE),
-        wait_handle_(INVALID_HANDLE_VALUE),
-        owner_(0),
-        next_(0),
-        prev_(0)
-    {
-    }
-
-  private:
-    // Only this service will have access to the internal values.
-    friend class win_object_handle_service;
-
-    // The native object handle representation. May be accessed or modified
-    // without locking the mutex.
-    native_handle_type handle_;
-
-    // The handle used to unregister the wait operation. The mutex must be
-    // locked when accessing or modifying this member.
-    HANDLE wait_handle_;
-
-    // The operations waiting on the object handle. If there is a registered
-    // wait then the mutex must be locked when accessing or modifying this
-    // member
-    op_queue<wait_op> op_queue_;
-
-    // The service instance that owns the object handle implementation.
-    win_object_handle_service* owner_;
-
-    // Pointers to adjacent handle implementations in linked list. The mutex
-    // must be locked when accessing or modifying these members.
-    implementation_type* next_;
-    implementation_type* prev_;
-  };
-
-  // Constructor.
-  ASIO_DECL win_object_handle_service(
-      asio::io_context& io_context);
-
-  // Destroy all user-defined handler objects owned by the service.
-  ASIO_DECL void shutdown();
-
-  // Construct a new handle implementation.
-  ASIO_DECL void construct(implementation_type& impl);
-
-  // Move-construct a new handle implementation.
-  ASIO_DECL void move_construct(implementation_type& impl,
-      implementation_type& other_impl);
-
-  // Move-assign from another handle implementation.
-  ASIO_DECL void move_assign(implementation_type& impl,
-      win_object_handle_service& other_service,
-      implementation_type& other_impl);
-
-  // Destroy a handle implementation.
-  ASIO_DECL void destroy(implementation_type& impl);
-
-  // Assign a native handle to a handle implementation.
-  ASIO_DECL asio::error_code assign(implementation_type& impl,
-      const native_handle_type& handle, asio::error_code& ec);
-
-  // Determine whether the handle is open.
-  bool is_open(const implementation_type& impl) const
-  {
-    return impl.handle_ != INVALID_HANDLE_VALUE && impl.handle_ != 0;
-  }
-
-  // Destroy a handle implementation.
-  ASIO_DECL asio::error_code close(implementation_type& impl,
-      asio::error_code& ec);
-
-  // Get the native handle representation.
-  native_handle_type native_handle(const implementation_type& impl) const
-  {
-    return impl.handle_;
-  }
-
-  // Cancel all operations associated with the handle.
-  ASIO_DECL asio::error_code cancel(implementation_type& impl,
-      asio::error_code& ec);
-
-  // Perform a synchronous wait for the object to enter a signalled state.
-  ASIO_DECL void wait(implementation_type& impl,
-      asio::error_code& ec);
-
-  /// Start an asynchronous wait.
-  template <typename Handler>
-  void async_wait(implementation_type& impl, Handler& handler)
-  {
-    // Allocate and construct an operation to wrap the handler.
-    typedef wait_handler<Handler> op;
-    typename op::ptr p = { asio::detail::addressof(handler),
-      op::ptr::allocate(handler), 0 };
-    p.p = new (p.v) op(handler);
-
-    ASIO_HANDLER_CREATION((io_context_.context(), *p.p, "object_handle",
-          &impl, reinterpret_cast<uintmax_t>(impl.wait_handle_), "async_wait"));
-
-    start_wait_op(impl, p.p);
-    p.v = p.p = 0;
-  }
-
-private:
-  // Helper function to start an asynchronous wait operation.
-  ASIO_DECL void start_wait_op(implementation_type& impl, wait_op* op);
-
-  // Helper function to register a wait operation.
-  ASIO_DECL void register_wait_callback(
-      implementation_type& impl, mutex::scoped_lock& lock);
-
-  // Callback function invoked when the registered wait completes.
-  static ASIO_DECL VOID CALLBACK wait_callback(
-      PVOID param, BOOLEAN timeout);
-
-  // The io_context implementation used to post completions.
-  io_context_impl& io_context_;
-
-  // Mutex to protect access to internal state.
-  mutex mutex_;
-
-  // The head of a linked list of all implementations.
-  implementation_type* impl_list_;
-
-  // Flag to indicate that the dispatcher has been shut down.
-  bool shutdown_;
-};
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#if defined(ASIO_HEADER_ONLY)
-# include "asio/detail/impl/win_object_handle_service.ipp"
-#endif // defined(ASIO_HEADER_ONLY)
-
-#endif // defined(ASIO_HAS_WINDOWS_OBJECT_HANDLE)
-
-#endif // ASIO_DETAIL_WIN_OBJECT_HANDLE_SERVICE_HPP
diff --git a/lib/asio/detail/win_static_mutex.hpp b/lib/asio/detail/win_static_mutex.hpp
deleted file mode 100644
index b169688..0000000
--- a/lib/asio/detail/win_static_mutex.hpp
+++ /dev/null
@@ -1,74 +0,0 @@
-//
-// detail/win_static_mutex.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_WIN_STATIC_MUTEX_HPP
-#define ASIO_DETAIL_WIN_STATIC_MUTEX_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-
-#if defined(ASIO_WINDOWS)
-
-#include "asio/detail/scoped_lock.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-struct win_static_mutex
-{
-  typedef asio::detail::scoped_lock<win_static_mutex> scoped_lock;
-
-  // Initialise the mutex.
-  ASIO_DECL void init();
-
-  // Initialisation must be performed in a separate function to the "public"
-  // init() function since the compiler does not support the use of structured
-  // exceptions and C++ exceptions in the same function.
-  ASIO_DECL int do_init();
-
-  // Lock the mutex.
-  void lock()
-  {
-    ::EnterCriticalSection(&crit_section_);
-  }
-
-  // Unlock the mutex.
-  void unlock()
-  {
-    ::LeaveCriticalSection(&crit_section_);
-  }
-
-  bool initialised_;
-  ::CRITICAL_SECTION crit_section_;
-};
-
-#if defined(UNDER_CE)
-# define ASIO_WIN_STATIC_MUTEX_INIT { false, { 0, 0, 0, 0, 0 } }
-#else // defined(UNDER_CE)
-# define ASIO_WIN_STATIC_MUTEX_INIT { false, { 0, 0, 0, 0, 0, 0 } }
-#endif // defined(UNDER_CE)
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#if defined(ASIO_HEADER_ONLY)
-# include "asio/detail/impl/win_static_mutex.ipp"
-#endif // defined(ASIO_HEADER_ONLY)
-
-#endif // defined(ASIO_WINDOWS)
-
-#endif // ASIO_DETAIL_WIN_STATIC_MUTEX_HPP
diff --git a/lib/asio/detail/win_thread.hpp b/lib/asio/detail/win_thread.hpp
deleted file mode 100644
index 8b28a90..0000000
--- a/lib/asio/detail/win_thread.hpp
+++ /dev/null
@@ -1,147 +0,0 @@
-//
-// detail/win_thread.hpp
-// ~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_WIN_THREAD_HPP
-#define ASIO_DETAIL_WIN_THREAD_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-
-#if defined(ASIO_WINDOWS) \
-  && !defined(ASIO_WINDOWS_APP) \
-  && !defined(UNDER_CE)
-
-#include <cstddef>
-#include "asio/detail/noncopyable.hpp"
-#include "asio/detail/socket_types.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-ASIO_DECL unsigned int __stdcall win_thread_function(void* arg);
-
-#if defined(WINVER) && (WINVER < 0x0500)
-ASIO_DECL void __stdcall apc_function(ULONG data);
-#else
-ASIO_DECL void __stdcall apc_function(ULONG_PTR data);
-#endif
-
-template <typename T>
-class win_thread_base
-{
-public:
-  static bool terminate_threads()
-  {
-    return ::InterlockedExchangeAdd(&terminate_threads_, 0) != 0;
-  }
-
-  static void set_terminate_threads(bool b)
-  {
-    ::InterlockedExchange(&terminate_threads_, b ? 1 : 0);
-  }
-
-private:
-  static long terminate_threads_;
-};
-
-template <typename T>
-long win_thread_base<T>::terminate_threads_ = 0;
-
-class win_thread
-  : private noncopyable,
-    public win_thread_base<win_thread>
-{
-public:
-  // Constructor.
-  template <typename Function>
-  win_thread(Function f, unsigned int stack_size = 0)
-    : thread_(0),
-      exit_event_(0)
-  {
-    start_thread(new func<Function>(f), stack_size);
-  }
-
-  // Destructor.
-  ASIO_DECL ~win_thread();
-
-  // Wait for the thread to exit.
-  ASIO_DECL void join();
-
-  // Get number of CPUs.
-  ASIO_DECL static std::size_t hardware_concurrency();
-
-private:
-  friend ASIO_DECL unsigned int __stdcall win_thread_function(void* arg);
-
-#if defined(WINVER) && (WINVER < 0x0500)
-  friend ASIO_DECL void __stdcall apc_function(ULONG);
-#else
-  friend ASIO_DECL void __stdcall apc_function(ULONG_PTR);
-#endif
-
-  class func_base
-  {
-  public:
-    virtual ~func_base() {}
-    virtual void run() = 0;
-    ::HANDLE entry_event_;
-    ::HANDLE exit_event_;
-  };
-
-  struct auto_func_base_ptr
-  {
-    func_base* ptr;
-    ~auto_func_base_ptr() { delete ptr; }
-  };
-
-  template <typename Function>
-  class func
-    : public func_base
-  {
-  public:
-    func(Function f)
-      : f_(f)
-    {
-    }
-
-    virtual void run()
-    {
-      f_();
-    }
-
-  private:
-    Function f_;
-  };
-
-  ASIO_DECL void start_thread(func_base* arg, unsigned int stack_size);
-
-  ::HANDLE thread_;
-  ::HANDLE exit_event_;
-};
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#if defined(ASIO_HEADER_ONLY)
-# include "asio/detail/impl/win_thread.ipp"
-#endif // defined(ASIO_HEADER_ONLY)
-
-#endif // defined(ASIO_WINDOWS)
-       // && !defined(ASIO_WINDOWS_APP)
-       // && !defined(UNDER_CE)
-
-#endif // ASIO_DETAIL_WIN_THREAD_HPP
diff --git a/lib/asio/detail/win_tss_ptr.hpp b/lib/asio/detail/win_tss_ptr.hpp
deleted file mode 100644
index 4207108..0000000
--- a/lib/asio/detail/win_tss_ptr.hpp
+++ /dev/null
@@ -1,79 +0,0 @@
-//
-// detail/win_tss_ptr.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_WIN_TSS_PTR_HPP
-#define ASIO_DETAIL_WIN_TSS_PTR_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-
-#if defined(ASIO_WINDOWS)
-
-#include "asio/detail/noncopyable.hpp"
-#include "asio/detail/socket_types.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-// Helper function to create thread-specific storage.
-ASIO_DECL DWORD win_tss_ptr_create();
-
-template <typename T>
-class win_tss_ptr
-  : private noncopyable
-{
-public:
-  // Constructor.
-  win_tss_ptr()
-    : tss_key_(win_tss_ptr_create())
-  {
-  }
-
-  // Destructor.
-  ~win_tss_ptr()
-  {
-    ::TlsFree(tss_key_);
-  }
-
-  // Get the value.
-  operator T*() const
-  {
-    return static_cast<T*>(::TlsGetValue(tss_key_));
-  }
-
-  // Set the value.
-  void operator=(T* value)
-  {
-    ::TlsSetValue(tss_key_, value);
-  }
-
-private:
-  // Thread-specific storage to allow unlocked access to determine whether a
-  // thread is a member of the pool.
-  DWORD tss_key_;
-};
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#if defined(ASIO_HEADER_ONLY)
-# include "asio/detail/impl/win_tss_ptr.ipp"
-#endif // defined(ASIO_HEADER_ONLY)
-
-#endif // defined(ASIO_WINDOWS)
-
-#endif // ASIO_DETAIL_WIN_TSS_PTR_HPP
diff --git a/lib/asio/detail/winapp_thread.hpp b/lib/asio/detail/winapp_thread.hpp
deleted file mode 100644
index 69dcf08..0000000
--- a/lib/asio/detail/winapp_thread.hpp
+++ /dev/null
@@ -1,124 +0,0 @@
-//
-// detail/winapp_thread.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_WINAPP_THREAD_HPP
-#define ASIO_DETAIL_WINAPP_THREAD_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-
-#if defined(ASIO_WINDOWS) && defined(ASIO_WINDOWS_APP)
-
-#include "asio/detail/noncopyable.hpp"
-#include "asio/detail/scoped_ptr.hpp"
-#include "asio/detail/socket_types.hpp"
-#include "asio/detail/throw_error.hpp"
-#include "asio/error.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-DWORD WINAPI winapp_thread_function(LPVOID arg);
-
-class winapp_thread
-  : private noncopyable
-{
-public:
-  // Constructor.
-  template <typename Function>
-  winapp_thread(Function f, unsigned int = 0)
-  {
-    scoped_ptr<func_base> arg(new func<Function>(f));
-    DWORD thread_id = 0;
-    thread_ = ::CreateThread(0, 0, winapp_thread_function,
-        arg.get(), 0, &thread_id);
-    if (!thread_)
-    {
-      DWORD last_error = ::GetLastError();
-      asio::error_code ec(last_error,
-          asio::error::get_system_category());
-      asio::detail::throw_error(ec, "thread");
-    }
-    arg.release();
-  }
-
-  // Destructor.
-  ~winapp_thread()
-  {
-    ::CloseHandle(thread_);
-  }
-
-  // Wait for the thread to exit.
-  void join()
-  {
-    ::WaitForSingleObjectEx(thread_, INFINITE, false);
-  }
-
-  // Get number of CPUs.
-  static std::size_t hardware_concurrency()
-  {
-    SYSTEM_INFO system_info;
-    ::GetNativeSystemInfo(&system_info);
-    return system_info.dwNumberOfProcessors;
-  }
-
-private:
-  friend DWORD WINAPI winapp_thread_function(LPVOID arg);
-
-  class func_base
-  {
-  public:
-    virtual ~func_base() {}
-    virtual void run() = 0;
-  };
-
-  template <typename Function>
-  class func
-    : public func_base
-  {
-  public:
-    func(Function f)
-      : f_(f)
-    {
-    }
-
-    virtual void run()
-    {
-      f_();
-    }
-
-  private:
-    Function f_;
-  };
-
-  ::HANDLE thread_;
-};
-
-inline DWORD WINAPI winapp_thread_function(LPVOID arg)
-{
-  scoped_ptr<winapp_thread::func_base> func(
-      static_cast<winapp_thread::func_base*>(arg));
-  func->run();
-  return 0;
-}
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // defined(ASIO_WINDOWS) && defined(ASIO_WINDOWS_APP)
-
-#endif // ASIO_DETAIL_WINAPP_THREAD_HPP
diff --git a/lib/asio/detail/wince_thread.hpp b/lib/asio/detail/wince_thread.hpp
deleted file mode 100644
index a2863f6..0000000
--- a/lib/asio/detail/wince_thread.hpp
+++ /dev/null
@@ -1,124 +0,0 @@
-//
-// detail/wince_thread.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_WINCE_THREAD_HPP
-#define ASIO_DETAIL_WINCE_THREAD_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-
-#if defined(ASIO_WINDOWS) && defined(UNDER_CE)
-
-#include "asio/detail/noncopyable.hpp"
-#include "asio/detail/scoped_ptr.hpp"
-#include "asio/detail/socket_types.hpp"
-#include "asio/detail/throw_error.hpp"
-#include "asio/error.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-DWORD WINAPI wince_thread_function(LPVOID arg);
-
-class wince_thread
-  : private noncopyable
-{
-public:
-  // Constructor.
-  template <typename Function>
-  wince_thread(Function f, unsigned int = 0)
-  {
-    scoped_ptr<func_base> arg(new func<Function>(f));
-    DWORD thread_id = 0;
-    thread_ = ::CreateThread(0, 0, wince_thread_function,
-        arg.get(), 0, &thread_id);
-    if (!thread_)
-    {
-      DWORD last_error = ::GetLastError();
-      asio::error_code ec(last_error,
-          asio::error::get_system_category());
-      asio::detail::throw_error(ec, "thread");
-    }
-    arg.release();
-  }
-
-  // Destructor.
-  ~wince_thread()
-  {
-    ::CloseHandle(thread_);
-  }
-
-  // Wait for the thread to exit.
-  void join()
-  {
-    ::WaitForSingleObject(thread_, INFINITE);
-  }
-
-  // Get number of CPUs.
-  static std::size_t hardware_concurrency()
-  {
-    SYSTEM_INFO system_info;
-    ::GetSystemInfo(&system_info);
-    return system_info.dwNumberOfProcessors;
-  }
-
-private:
-  friend DWORD WINAPI wince_thread_function(LPVOID arg);
-
-  class func_base
-  {
-  public:
-    virtual ~func_base() {}
-    virtual void run() = 0;
-  };
-
-  template <typename Function>
-  class func
-    : public func_base
-  {
-  public:
-    func(Function f)
-      : f_(f)
-    {
-    }
-
-    virtual void run()
-    {
-      f_();
-    }
-
-  private:
-    Function f_;
-  };
-
-  ::HANDLE thread_;
-};
-
-inline DWORD WINAPI wince_thread_function(LPVOID arg)
-{
-  scoped_ptr<wince_thread::func_base> func(
-      static_cast<wince_thread::func_base*>(arg));
-  func->run();
-  return 0;
-}
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // defined(ASIO_WINDOWS) && defined(UNDER_CE)
-
-#endif // ASIO_DETAIL_WINCE_THREAD_HPP
diff --git a/lib/asio/detail/winrt_async_manager.hpp b/lib/asio/detail/winrt_async_manager.hpp
deleted file mode 100644
index e22ad52..0000000
--- a/lib/asio/detail/winrt_async_manager.hpp
+++ /dev/null
@@ -1,294 +0,0 @@
-//
-// detail/winrt_async_manager.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_WINRT_ASYNC_MANAGER_HPP
-#define ASIO_DETAIL_WINRT_ASYNC_MANAGER_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-
-#if defined(ASIO_WINDOWS_RUNTIME)
-
-#include <future>
-#include "asio/detail/atomic_count.hpp"
-#include "asio/detail/winrt_async_op.hpp"
-#include "asio/error.hpp"
-#include "asio/io_context.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-class winrt_async_manager
-  : public asio::detail::service_base<winrt_async_manager>
-{
-public:
-  // Constructor.
-  winrt_async_manager(asio::io_context& io_context)
-    : asio::detail::service_base<winrt_async_manager>(io_context),
-      io_context_(use_service<io_context_impl>(io_context)),
-      outstanding_ops_(1)
-  {
-  }
-
-  // Destructor.
-  ~winrt_async_manager()
-  {
-  }
-
-  // Destroy all user-defined handler objects owned by the service.
-  void shutdown()
-  {
-    if (--outstanding_ops_ > 0)
-    {
-      // Block until last operation is complete.
-      std::future<void> f = promise_.get_future();
-      f.wait();
-    }
-  }
-
-  void sync(Windows::Foundation::IAsyncAction^ action,
-      asio::error_code& ec)
-  {
-    using namespace Windows::Foundation;
-    using Windows::Foundation::AsyncStatus;
-
-    auto promise = std::make_shared<std::promise<asio::error_code>>();
-    auto future = promise->get_future();
-
-    action->Completed = ref new AsyncActionCompletedHandler(
-      [promise](IAsyncAction^ action, AsyncStatus status)
-      {
-        switch (status)
-        {
-        case AsyncStatus::Canceled:
-          promise->set_value(asio::error::operation_aborted);
-          break;
-        case AsyncStatus::Error:
-        case AsyncStatus::Completed:
-        default:
-          asio::error_code ec(
-              action->ErrorCode.Value,
-              asio::system_category());
-          promise->set_value(ec);
-          break;
-        }
-      });
-
-    ec = future.get();
-  }
-
-  template <typename TResult>
-  TResult sync(Windows::Foundation::IAsyncOperation<TResult>^ operation,
-      asio::error_code& ec)
-  {
-    using namespace Windows::Foundation;
-    using Windows::Foundation::AsyncStatus;
-
-    auto promise = std::make_shared<std::promise<asio::error_code>>();
-    auto future = promise->get_future();
-
-    operation->Completed = ref new AsyncOperationCompletedHandler<TResult>(
-      [promise](IAsyncOperation<TResult>^ operation, AsyncStatus status)
-      {
-        switch (status)
-        {
-        case AsyncStatus::Canceled:
-          promise->set_value(asio::error::operation_aborted);
-          break;
-        case AsyncStatus::Error:
-        case AsyncStatus::Completed:
-        default:
-          asio::error_code ec(
-              operation->ErrorCode.Value,
-              asio::system_category());
-          promise->set_value(ec);
-          break;
-        }
-      });
-
-    ec = future.get();
-    return operation->GetResults();
-  }
-
-  template <typename TResult, typename TProgress>
-  TResult sync(
-      Windows::Foundation::IAsyncOperationWithProgress<
-        TResult, TProgress>^ operation,
-      asio::error_code& ec)
-  {
-    using namespace Windows::Foundation;
-    using Windows::Foundation::AsyncStatus;
-
-    auto promise = std::make_shared<std::promise<asio::error_code>>();
-    auto future = promise->get_future();
-
-    operation->Completed
-      = ref new AsyncOperationWithProgressCompletedHandler<TResult, TProgress>(
-        [promise](IAsyncOperationWithProgress<TResult, TProgress>^ operation,
-          AsyncStatus status)
-        {
-          switch (status)
-          {
-          case AsyncStatus::Canceled:
-            promise->set_value(asio::error::operation_aborted);
-            break;
-          case AsyncStatus::Started:
-            break;
-          case AsyncStatus::Error:
-          case AsyncStatus::Completed:
-          default:
-            asio::error_code ec(
-                operation->ErrorCode.Value,
-                asio::system_category());
-            promise->set_value(ec);
-            break;
-          }
-        });
-
-    ec = future.get();
-    return operation->GetResults();
-  }
-
-  void async(Windows::Foundation::IAsyncAction^ action,
-      winrt_async_op<void>* handler)
-  {
-    using namespace Windows::Foundation;
-    using Windows::Foundation::AsyncStatus;
-
-    auto on_completed = ref new AsyncActionCompletedHandler(
-      [this, handler](IAsyncAction^ action, AsyncStatus status)
-      {
-        switch (status)
-        {
-        case AsyncStatus::Canceled:
-          handler->ec_ = asio::error::operation_aborted;
-          break;
-        case AsyncStatus::Started:
-          return;
-        case AsyncStatus::Completed:
-        case AsyncStatus::Error:
-        default:
-          handler->ec_ = asio::error_code(
-              action->ErrorCode.Value,
-              asio::system_category());
-          break;
-        }
-        io_context_.post_deferred_completion(handler);
-        if (--outstanding_ops_ == 0)
-          promise_.set_value();
-      });
-
-    io_context_.work_started();
-    ++outstanding_ops_;
-    action->Completed = on_completed;
-  }
-
-  template <typename TResult>
-  void async(Windows::Foundation::IAsyncOperation<TResult>^ operation,
-      winrt_async_op<TResult>* handler)
-  {
-    using namespace Windows::Foundation;
-    using Windows::Foundation::AsyncStatus;
-
-    auto on_completed = ref new AsyncOperationCompletedHandler<TResult>(
-      [this, handler](IAsyncOperation<TResult>^ operation, AsyncStatus status)
-      {
-        switch (status)
-        {
-        case AsyncStatus::Canceled:
-          handler->ec_ = asio::error::operation_aborted;
-          break;
-        case AsyncStatus::Started:
-          return;
-        case AsyncStatus::Completed:
-          handler->result_ = operation->GetResults();
-          // Fall through.
-        case AsyncStatus::Error:
-        default:
-          handler->ec_ = asio::error_code(
-              operation->ErrorCode.Value,
-              asio::system_category());
-          break;
-        }
-        io_context_.post_deferred_completion(handler);
-        if (--outstanding_ops_ == 0)
-          promise_.set_value();
-      });
-
-    io_context_.work_started();
-    ++outstanding_ops_;
-    operation->Completed = on_completed;
-  }
-
-  template <typename TResult, typename TProgress>
-  void async(
-      Windows::Foundation::IAsyncOperationWithProgress<
-        TResult, TProgress>^ operation,
-      winrt_async_op<TResult>* handler)
-  {
-    using namespace Windows::Foundation;
-    using Windows::Foundation::AsyncStatus;
-
-    auto on_completed
-      = ref new AsyncOperationWithProgressCompletedHandler<TResult, TProgress>(
-        [this, handler](IAsyncOperationWithProgress<
-          TResult, TProgress>^ operation, AsyncStatus status)
-        {
-          switch (status)
-          {
-          case AsyncStatus::Canceled:
-            handler->ec_ = asio::error::operation_aborted;
-            break;
-          case AsyncStatus::Started:
-            return;
-          case AsyncStatus::Completed:
-            handler->result_ = operation->GetResults();
-            // Fall through.
-          case AsyncStatus::Error:
-          default:
-            handler->ec_ = asio::error_code(
-                operation->ErrorCode.Value,
-                asio::system_category());
-            break;
-          }
-          io_context_.post_deferred_completion(handler);
-          if (--outstanding_ops_ == 0)
-            promise_.set_value();
-        });
-
-    io_context_.work_started();
-    ++outstanding_ops_;
-    operation->Completed = on_completed;
-  }
-
-private:
-  // The io_context implementation used to post completed handlers.
-  io_context_impl& io_context_;
-
-  // Count of outstanding operations.
-  atomic_count outstanding_ops_;
-
-  // Used to keep wait for outstanding operations to complete.
-  std::promise<void> promise_;
-};
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // defined(ASIO_WINDOWS_RUNTIME)
-
-#endif // ASIO_DETAIL_WINRT_ASYNC_MANAGER_HPP
diff --git a/lib/asio/detail/winrt_async_op.hpp b/lib/asio/detail/winrt_async_op.hpp
deleted file mode 100644
index 75891a4..0000000
--- a/lib/asio/detail/winrt_async_op.hpp
+++ /dev/null
@@ -1,65 +0,0 @@
-//
-// detail/winrt_async_op.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_WINRT_ASYNC_OP_HPP
-#define ASIO_DETAIL_WINRT_ASYNC_OP_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-#include "asio/detail/operation.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-template <typename TResult>
-class winrt_async_op
-  : public operation
-{
-public:
-  // The error code to be passed to the completion handler.
-  asio::error_code ec_;
-
-  // The result of the operation, to be passed to the completion handler.
-  TResult result_;
-
-protected:
-  winrt_async_op(func_type complete_func)
-    : operation(complete_func),
-      result_()
-  {
-  }
-};
-
-template <>
-class winrt_async_op<void>
-  : public operation
-{
-public:
-  // The error code to be passed to the completion handler.
-  asio::error_code ec_;
-
-protected:
-  winrt_async_op(func_type complete_func)
-    : operation(complete_func)
-  {
-  }
-};
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // ASIO_DETAIL_WINRT_ASYNC_OP_HPP
diff --git a/lib/asio/detail/winrt_resolve_op.hpp b/lib/asio/detail/winrt_resolve_op.hpp
deleted file mode 100644
index 07efd29..0000000
--- a/lib/asio/detail/winrt_resolve_op.hpp
+++ /dev/null
@@ -1,118 +0,0 @@
-//
-// detail/winrt_resolve_op.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_WINRT_RESOLVE_OP_HPP
-#define ASIO_DETAIL_WINRT_RESOLVE_OP_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-
-#if defined(ASIO_WINDOWS_RUNTIME)
-
-#include "asio/detail/bind_handler.hpp"
-#include "asio/detail/fenced_block.hpp"
-#include "asio/detail/handler_alloc_helpers.hpp"
-#include "asio/detail/handler_invoke_helpers.hpp"
-#include "asio/detail/memory.hpp"
-#include "asio/detail/winrt_async_op.hpp"
-#include "asio/ip/basic_resolver_results.hpp"
-#include "asio/error.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-template <typename Protocol, typename Handler>
-class winrt_resolve_op :
-  public winrt_async_op<
-    Windows::Foundation::Collections::IVectorView<
-      Windows::Networking::EndpointPair^>^>
-{
-public:
-  ASIO_DEFINE_HANDLER_PTR(winrt_resolve_op);
-
-  typedef typename Protocol::endpoint endpoint_type;
-  typedef asio::ip::basic_resolver_query<Protocol> query_type;
-  typedef asio::ip::basic_resolver_results<Protocol> results_type;
-
-  winrt_resolve_op(const query_type& query, Handler& handler)
-    : winrt_async_op<
-        Windows::Foundation::Collections::IVectorView<
-          Windows::Networking::EndpointPair^>^>(
-            &winrt_resolve_op::do_complete),
-      query_(query),
-      handler_(ASIO_MOVE_CAST(Handler)(handler))
-  {
-    handler_work<Handler>::start(handler_);
-  }
-
-  static void do_complete(void* owner, operation* base,
-      const asio::error_code&, std::size_t)
-  {
-    // Take ownership of the operation object.
-    winrt_resolve_op* o(static_cast<winrt_resolve_op*>(base));
-    ptr p = { asio::detail::addressof(o->handler_), o, o };
-    handler_work<Handler> w(o->handler_);
-
-    ASIO_HANDLER_COMPLETION((*o));
-
-    results_type results = results_type();
-    if (!o->ec_)
-    {
-      try
-      {
-        results = results_type::create(o->result_, o->query_.hints(),
-            o->query_.host_name(), o->query_.service_name());
-      }
-      catch (Platform::Exception^ e)
-      {
-        o->ec_ = asio::error_code(e->HResult,
-            asio::system_category());
-      }
-    }
-
-    // Make a copy of the handler so that the memory can be deallocated before
-    // the upcall is made. Even if we're not about to make an upcall, a
-    // sub-object of the handler may be the true owner of the memory associated
-    // with the handler. Consequently, a local copy of the handler is required
-    // to ensure that any owning sub-object remains valid until after we have
-    // deallocated the memory here.
-    detail::binder2<Handler, asio::error_code, results_type>
-      handler(o->handler_, o->ec_, results);
-    p.h = asio::detail::addressof(handler.handler_);
-    p.reset();
-
-    // Make the upcall if required.
-    if (owner)
-    {
-      fenced_block b(fenced_block::half);
-      ASIO_HANDLER_INVOCATION_BEGIN((handler.arg1_, "..."));
-      w.complete(handler, handler.handler_);
-      ASIO_HANDLER_INVOCATION_END;
-    }
-  }
-
-private:
-  query_type query_;
-  Handler handler_;
-};
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // defined(ASIO_WINDOWS_RUNTIME)
-
-#endif // ASIO_DETAIL_WINRT_RESOLVE_OP_HPP
diff --git a/lib/asio/detail/winrt_resolver_service.hpp b/lib/asio/detail/winrt_resolver_service.hpp
deleted file mode 100644
index aeb4448..0000000
--- a/lib/asio/detail/winrt_resolver_service.hpp
+++ /dev/null
@@ -1,198 +0,0 @@
-//
-// detail/winrt_resolver_service.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_WINRT_RESOLVER_SERVICE_HPP
-#define ASIO_DETAIL_WINRT_RESOLVER_SERVICE_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-
-#if defined(ASIO_WINDOWS_RUNTIME)
-
-#include "asio/ip/basic_resolver_query.hpp"
-#include "asio/ip/basic_resolver_results.hpp"
-#include "asio/detail/bind_handler.hpp"
-#include "asio/detail/memory.hpp"
-#include "asio/detail/socket_ops.hpp"
-#include "asio/detail/winrt_async_manager.hpp"
-#include "asio/detail/winrt_resolve_op.hpp"
-#include "asio/detail/winrt_utils.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-template <typename Protocol>
-class winrt_resolver_service :
-  public service_base<winrt_resolver_service<Protocol> >
-{
-public:
-  // The implementation type of the resolver. A cancellation token is used to
-  // indicate to the asynchronous operation that the operation has been
-  // cancelled.
-  typedef socket_ops::shared_cancel_token_type implementation_type;
-
-  // The endpoint type.
-  typedef typename Protocol::endpoint endpoint_type;
-
-  // The query type.
-  typedef asio::ip::basic_resolver_query<Protocol> query_type;
-
-  // The results type.
-  typedef asio::ip::basic_resolver_results<Protocol> results_type;
-
-  // Constructor.
-  winrt_resolver_service(asio::io_context& io_context)
-    : service_base<winrt_resolver_service<Protocol> >(io_context),
-      io_context_(use_service<io_context_impl>(io_context)),
-      async_manager_(use_service<winrt_async_manager>(io_context))
-  {
-  }
-
-  // Destructor.
-  ~winrt_resolver_service()
-  {
-  }
-
-  // Destroy all user-defined handler objects owned by the service.
-  void shutdown()
-  {
-  }
-
-  // Perform any fork-related housekeeping.
-  void notify_fork(asio::io_context::fork_event)
-  {
-  }
-
-  // Construct a new resolver implementation.
-  void construct(implementation_type&)
-  {
-  }
-
-  // Move-construct a new resolver implementation.
-  void move_construct(implementation_type&,
-      implementation_type&)
-  {
-  }
-
-  // Move-assign from another resolver implementation.
-  void move_assign(implementation_type&,
-      winrt_resolver_service&, implementation_type&)
-  {
-  }
-
-  // Destroy a resolver implementation.
-  void destroy(implementation_type&)
-  {
-  }
-
-  // Cancel pending asynchronous operations.
-  void cancel(implementation_type&)
-  {
-  }
-
-  // Resolve a query to a list of entries.
-  results_type resolve(implementation_type&,
-      const query_type& query, asio::error_code& ec)
-  {
-    try
-    {
-      using namespace Windows::Networking::Sockets;
-      auto endpoint_pairs = async_manager_.sync(
-          DatagramSocket::GetEndpointPairsAsync(
-            winrt_utils::host_name(query.host_name()),
-            winrt_utils::string(query.service_name())), ec);
-
-      if (ec)
-        return results_type();
-
-      return results_type::create(
-          endpoint_pairs, query.hints(),
-          query.host_name(), query.service_name());
-    }
-    catch (Platform::Exception^ e)
-    {
-      ec = asio::error_code(e->HResult,
-          asio::system_category());
-      return results_type();
-    }
-  }
-
-  // Asynchronously resolve a query to a list of entries.
-  template <typename Handler>
-  void async_resolve(implementation_type& impl,
-      const query_type& query, Handler& handler)
-  {
-    bool is_continuation =
-      asio_handler_cont_helpers::is_continuation(handler);
-
-    // Allocate and construct an operation to wrap the handler.
-    typedef winrt_resolve_op<Protocol, Handler> op;
-    typename op::ptr p = { asio::detail::addressof(handler),
-      op::ptr::allocate(handler), 0 };
-    p.p = new (p.v) op(query, handler);
-
-    ASIO_HANDLER_CREATION((io_context_.context(),
-          *p.p, "resolver", &impl, 0, "async_resolve"));
-    (void)impl;
-
-    try
-    {
-      using namespace Windows::Networking::Sockets;
-      async_manager_.async(DatagramSocket::GetEndpointPairsAsync(
-            winrt_utils::host_name(query.host_name()),
-            winrt_utils::string(query.service_name())), p.p);
-      p.v = p.p = 0;
-    }
-    catch (Platform::Exception^ e)
-    {
-      p.p->ec_ = asio::error_code(
-          e->HResult, asio::system_category());
-      io_context_.post_immediate_completion(p.p, is_continuation);
-      p.v = p.p = 0;
-    }
-  }
-
-  // Resolve an endpoint to a list of entries.
-  results_type resolve(implementation_type&,
-      const endpoint_type&, asio::error_code& ec)
-  {
-    ec = asio::error::operation_not_supported;
-    return results_type();
-  }
-
-  // Asynchronously resolve an endpoint to a list of entries.
-  template <typename Handler>
-  void async_resolve(implementation_type&,
-      const endpoint_type&, Handler& handler)
-  {
-    asio::error_code ec = asio::error::operation_not_supported;
-    const results_type results;
-    io_context_.get_io_context().post(
-        detail::bind_handler(handler, ec, results));
-  }
-
-private:
-  io_context_impl& io_context_;
-  winrt_async_manager& async_manager_;
-};
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // defined(ASIO_WINDOWS_RUNTIME)
-
-#endif // ASIO_DETAIL_WINRT_RESOLVER_SERVICE_HPP
diff --git a/lib/asio/detail/winrt_socket_connect_op.hpp b/lib/asio/detail/winrt_socket_connect_op.hpp
deleted file mode 100644
index f18b445..0000000
--- a/lib/asio/detail/winrt_socket_connect_op.hpp
+++ /dev/null
@@ -1,92 +0,0 @@
-//
-// detail/winrt_socket_connect_op.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_WINRT_SOCKET_CONNECT_OP_HPP
-#define ASIO_DETAIL_WINRT_SOCKET_CONNECT_OP_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-
-#if defined(ASIO_WINDOWS_RUNTIME)
-
-#include "asio/detail/bind_handler.hpp"
-#include "asio/detail/buffer_sequence_adapter.hpp"
-#include "asio/detail/fenced_block.hpp"
-#include "asio/detail/handler_alloc_helpers.hpp"
-#include "asio/detail/handler_invoke_helpers.hpp"
-#include "asio/detail/memory.hpp"
-#include "asio/detail/winrt_async_op.hpp"
-#include "asio/error.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-template <typename Handler>
-class winrt_socket_connect_op :
-  public winrt_async_op<void>
-{
-public:
-  ASIO_DEFINE_HANDLER_PTR(winrt_socket_connect_op);
-
-  winrt_socket_connect_op(Handler& handler)
-    : winrt_async_op<void>(&winrt_socket_connect_op::do_complete),
-      handler_(ASIO_MOVE_CAST(Handler)(handler))
-  {
-    handler_work<Handler>::start(handler_);
-  }
-
-  static void do_complete(void* owner, operation* base,
-      const asio::error_code&, std::size_t)
-  {
-    // Take ownership of the operation object.
-    winrt_socket_connect_op* o(static_cast<winrt_socket_connect_op*>(base));
-    ptr p = { asio::detail::addressof(o->handler_), o, o };
-    handler_work<Handler> w(o->handler_);
-
-    ASIO_HANDLER_COMPLETION((*o));
-
-    // Make a copy of the handler so that the memory can be deallocated before
-    // the upcall is made. Even if we're not about to make an upcall, a
-    // sub-object of the handler may be the true owner of the memory associated
-    // with the handler. Consequently, a local copy of the handler is required
-    // to ensure that any owning sub-object remains valid until after we have
-    // deallocated the memory here.
-    detail::binder1<Handler, asio::error_code>
-      handler(o->handler_, o->ec_);
-    p.h = asio::detail::addressof(handler.handler_);
-    p.reset();
-
-    // Make the upcall if required.
-    if (owner)
-    {
-      fenced_block b(fenced_block::half);
-      ASIO_HANDLER_INVOCATION_BEGIN((handler.arg1_));
-      w.complete(handler, handler.handler_);
-      ASIO_HANDLER_INVOCATION_END;
-    }
-  }
-
-private:
-  Handler handler_;
-};
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // defined(ASIO_WINDOWS_RUNTIME)
-
-#endif // ASIO_DETAIL_WINRT_SOCKET_CONNECT_OP_HPP
diff --git a/lib/asio/detail/winrt_socket_recv_op.hpp b/lib/asio/detail/winrt_socket_recv_op.hpp
deleted file mode 100644
index 8f1fcf5..0000000
--- a/lib/asio/detail/winrt_socket_recv_op.hpp
+++ /dev/null
@@ -1,112 +0,0 @@
-//
-// detail/winrt_socket_recv_op.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_WINRT_SOCKET_RECV_OP_HPP
-#define ASIO_DETAIL_WINRT_SOCKET_RECV_OP_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-
-#if defined(ASIO_WINDOWS_RUNTIME)
-
-#include "asio/detail/bind_handler.hpp"
-#include "asio/detail/buffer_sequence_adapter.hpp"
-#include "asio/detail/fenced_block.hpp"
-#include "asio/detail/handler_alloc_helpers.hpp"
-#include "asio/detail/handler_invoke_helpers.hpp"
-#include "asio/detail/memory.hpp"
-#include "asio/detail/winrt_async_op.hpp"
-#include "asio/error.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-template <typename MutableBufferSequence, typename Handler>
-class winrt_socket_recv_op :
-  public winrt_async_op<Windows::Storage::Streams::IBuffer^>
-{
-public:
-  ASIO_DEFINE_HANDLER_PTR(winrt_socket_recv_op);
-
-  winrt_socket_recv_op(const MutableBufferSequence& buffers, Handler& handler)
-    : winrt_async_op<Windows::Storage::Streams::IBuffer^>(
-          &winrt_socket_recv_op::do_complete),
-      buffers_(buffers),
-      handler_(ASIO_MOVE_CAST(Handler)(handler))
-  {
-    handler_work<Handler>::start(handler_);
-  }
-
-  static void do_complete(void* owner, operation* base,
-      const asio::error_code&, std::size_t)
-  {
-    // Take ownership of the operation object.
-    winrt_socket_recv_op* o(static_cast<winrt_socket_recv_op*>(base));
-    ptr p = { asio::detail::addressof(o->handler_), o, o };
-    handler_work<Handler> w(o->handler_);
-
-    ASIO_HANDLER_COMPLETION((*o));
-
-#if defined(ASIO_ENABLE_BUFFER_DEBUGGING)
-    // Check whether buffers are still valid.
-    if (owner)
-    {
-      buffer_sequence_adapter<asio::mutable_buffer,
-          MutableBufferSequence>::validate(o->buffers_);
-    }
-#endif // defined(ASIO_ENABLE_BUFFER_DEBUGGING)
-
-    std::size_t bytes_transferred = o->result_ ? o->result_->Length : 0;
-    if (bytes_transferred == 0 && !o->ec_ &&
-        !buffer_sequence_adapter<asio::mutable_buffer,
-          MutableBufferSequence>::all_empty(o->buffers_))
-    {
-      o->ec_ = asio::error::eof;
-    }
-
-    // Make a copy of the handler so that the memory can be deallocated before
-    // the upcall is made. Even if we're not about to make an upcall, a
-    // sub-object of the handler may be the true owner of the memory associated
-    // with the handler. Consequently, a local copy of the handler is required
-    // to ensure that any owning sub-object remains valid until after we have
-    // deallocated the memory here.
-    detail::binder2<Handler, asio::error_code, std::size_t>
-      handler(o->handler_, o->ec_, bytes_transferred);
-    p.h = asio::detail::addressof(handler.handler_);
-    p.reset();
-
-    // Make the upcall if required.
-    if (owner)
-    {
-      fenced_block b(fenced_block::half);
-      ASIO_HANDLER_INVOCATION_BEGIN((handler.arg1_, handler.arg2_));
-      w.complete(handler, handler.handler_);
-      ASIO_HANDLER_INVOCATION_END;
-    }
-  }
-
-private:
-  MutableBufferSequence buffers_;
-  Handler handler_;
-};
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // defined(ASIO_WINDOWS_RUNTIME)
-
-#endif // ASIO_DETAIL_WINRT_SOCKET_RECV_OP_HPP
diff --git a/lib/asio/detail/winrt_socket_send_op.hpp b/lib/asio/detail/winrt_socket_send_op.hpp
deleted file mode 100644
index 1148c24..0000000
--- a/lib/asio/detail/winrt_socket_send_op.hpp
+++ /dev/null
@@ -1,103 +0,0 @@
-//
-// detail/winrt_socket_send_op.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_WINRT_SOCKET_SEND_OP_HPP
-#define ASIO_DETAIL_WINRT_SOCKET_SEND_OP_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-
-#if defined(ASIO_WINDOWS_RUNTIME)
-
-#include "asio/detail/bind_handler.hpp"
-#include "asio/detail/buffer_sequence_adapter.hpp"
-#include "asio/detail/fenced_block.hpp"
-#include "asio/detail/handler_alloc_helpers.hpp"
-#include "asio/detail/handler_invoke_helpers.hpp"
-#include "asio/detail/memory.hpp"
-#include "asio/detail/winrt_async_op.hpp"
-#include "asio/error.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-template <typename ConstBufferSequence, typename Handler>
-class winrt_socket_send_op :
-  public winrt_async_op<unsigned int>
-{
-public:
-  ASIO_DEFINE_HANDLER_PTR(winrt_socket_send_op);
-
-  winrt_socket_send_op(const ConstBufferSequence& buffers, Handler& handler)
-    : winrt_async_op<unsigned int>(&winrt_socket_send_op::do_complete),
-      buffers_(buffers),
-      handler_(ASIO_MOVE_CAST(Handler)(handler))
-  {
-    handler_work<Handler>::start(handler_);
-  }
-
-  static void do_complete(void* owner, operation* base,
-      const asio::error_code&, std::size_t)
-  {
-    // Take ownership of the operation object.
-    winrt_socket_send_op* o(static_cast<winrt_socket_send_op*>(base));
-    ptr p = { asio::detail::addressof(o->handler_), o, o };
-    handler_work<Handler> w(o->handler_);
-
-    ASIO_HANDLER_COMPLETION((*o));
-
-#if defined(ASIO_ENABLE_BUFFER_DEBUGGING)
-    // Check whether buffers are still valid.
-    if (owner)
-    {
-      buffer_sequence_adapter<asio::const_buffer,
-          ConstBufferSequence>::validate(o->buffers_);
-    }
-#endif // defined(ASIO_ENABLE_BUFFER_DEBUGGING)
-
-    // Make a copy of the handler so that the memory can be deallocated before
-    // the upcall is made. Even if we're not about to make an upcall, a
-    // sub-object of the handler may be the true owner of the memory associated
-    // with the handler. Consequently, a local copy of the handler is required
-    // to ensure that any owning sub-object remains valid until after we have
-    // deallocated the memory here.
-    detail::binder2<Handler, asio::error_code, std::size_t>
-      handler(o->handler_, o->ec_, o->result_);
-    p.h = asio::detail::addressof(handler.handler_);
-    p.reset();
-
-    // Make the upcall if required.
-    if (owner)
-    {
-      fenced_block b(fenced_block::half);
-      ASIO_HANDLER_INVOCATION_BEGIN((handler.arg1_, handler.arg2_));
-      w.complete(handler, handler.handler_);
-      ASIO_HANDLER_INVOCATION_END;
-    }
-  }
-
-private:
-  ConstBufferSequence buffers_;
-  Handler handler_;
-};
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // defined(ASIO_WINDOWS_RUNTIME)
-
-#endif // ASIO_DETAIL_WINRT_SOCKET_SEND_OP_HPP
diff --git a/lib/asio/detail/winrt_ssocket_service.hpp b/lib/asio/detail/winrt_ssocket_service.hpp
deleted file mode 100644
index 603724a..0000000
--- a/lib/asio/detail/winrt_ssocket_service.hpp
+++ /dev/null
@@ -1,241 +0,0 @@
-//
-// detail/winrt_ssocket_service.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_WINRT_SSOCKET_SERVICE_HPP
-#define ASIO_DETAIL_WINRT_SSOCKET_SERVICE_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-
-#if defined(ASIO_WINDOWS_RUNTIME)
-
-#include "asio/error.hpp"
-#include "asio/io_context.hpp"
-#include "asio/detail/memory.hpp"
-#include "asio/detail/winrt_socket_connect_op.hpp"
-#include "asio/detail/winrt_ssocket_service_base.hpp"
-#include "asio/detail/winrt_utils.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-template <typename Protocol>
-class winrt_ssocket_service :
-  public service_base<winrt_ssocket_service<Protocol> >,
-  public winrt_ssocket_service_base
-{
-public:
-  // The protocol type.
-  typedef Protocol protocol_type;
-
-  // The endpoint type.
-  typedef typename Protocol::endpoint endpoint_type;
-
-  // The native type of a socket.
-  typedef Windows::Networking::Sockets::StreamSocket^ native_handle_type;
-
-  // The implementation type of the socket.
-  struct implementation_type : base_implementation_type
-  {
-    // Default constructor.
-    implementation_type()
-      : base_implementation_type(),
-        protocol_(endpoint_type().protocol())
-    {
-    }
-
-    // The protocol associated with the socket.
-    protocol_type protocol_;
-  };
-
-  // Constructor.
-  winrt_ssocket_service(asio::io_context& io_context)
-    : service_base<winrt_ssocket_service<Protocol> >(io_context),
-      winrt_ssocket_service_base(io_context)
-  {
-  }
-
-  // Destroy all user-defined handler objects owned by the service.
-  void shutdown()
-  {
-    this->base_shutdown();
-  }
-
-  // Move-construct a new socket implementation.
-  void move_construct(implementation_type& impl,
-      implementation_type& other_impl)
-  {
-    this->base_move_construct(impl, other_impl);
-
-    impl.protocol_ = other_impl.protocol_;
-    other_impl.protocol_ = endpoint_type().protocol();
-  }
-
-  // Move-assign from another socket implementation.
-  void move_assign(implementation_type& impl,
-      winrt_ssocket_service& other_service,
-      implementation_type& other_impl)
-  {
-    this->base_move_assign(impl, other_service, other_impl);
-
-    impl.protocol_ = other_impl.protocol_;
-    other_impl.protocol_ = endpoint_type().protocol();
-  }
-
-  // Move-construct a new socket implementation from another protocol type.
-  template <typename Protocol1>
-  void converting_move_construct(implementation_type& impl,
-      winrt_ssocket_service<Protocol1>&,
-      typename winrt_ssocket_service<
-        Protocol1>::implementation_type& other_impl)
-  {
-    this->base_move_construct(impl, other_impl);
-
-    impl.protocol_ = protocol_type(other_impl.protocol_);
-    other_impl.protocol_ = typename Protocol1::endpoint().protocol();
-  }
-
-  // Open a new socket implementation.
-  asio::error_code open(implementation_type& impl,
-      const protocol_type& protocol, asio::error_code& ec)
-  {
-    if (is_open(impl))
-    {
-      ec = asio::error::already_open;
-      return ec;
-    }
-
-    try
-    {
-      impl.socket_ = ref new Windows::Networking::Sockets::StreamSocket;
-      impl.protocol_ = protocol;
-      ec = asio::error_code();
-    }
-    catch (Platform::Exception^ e)
-    {
-      ec = asio::error_code(e->HResult,
-            asio::system_category());
-    }
-
-    return ec;
-  }
-
-  // Assign a native socket to a socket implementation.
-  asio::error_code assign(implementation_type& impl,
-      const protocol_type& protocol, const native_handle_type& native_socket,
-      asio::error_code& ec)
-  {
-    if (is_open(impl))
-    {
-      ec = asio::error::already_open;
-      return ec;
-    }
-
-    impl.socket_ = native_socket;
-    impl.protocol_ = protocol;
-    ec = asio::error_code();
-
-    return ec;
-  }
-
-  // Bind the socket to the specified local endpoint.
-  asio::error_code bind(implementation_type&,
-      const endpoint_type&, asio::error_code& ec)
-  {
-    ec = asio::error::operation_not_supported;
-    return ec;
-  }
-
-  // Get the local endpoint.
-  endpoint_type local_endpoint(const implementation_type& impl,
-      asio::error_code& ec) const
-  {
-    endpoint_type endpoint;
-    endpoint.resize(do_get_endpoint(impl, true,
-          endpoint.data(), endpoint.size(), ec));
-    return endpoint;
-  }
-
-  // Get the remote endpoint.
-  endpoint_type remote_endpoint(const implementation_type& impl,
-      asio::error_code& ec) const
-  {
-    endpoint_type endpoint;
-    endpoint.resize(do_get_endpoint(impl, false,
-          endpoint.data(), endpoint.size(), ec));
-    return endpoint;
-  }
-
-  // Set a socket option.
-  template <typename Option>
-  asio::error_code set_option(implementation_type& impl,
-      const Option& option, asio::error_code& ec)
-  {
-    return do_set_option(impl, option.level(impl.protocol_),
-        option.name(impl.protocol_), option.data(impl.protocol_),
-        option.size(impl.protocol_), ec);
-  }
-
-  // Get a socket option.
-  template <typename Option>
-  asio::error_code get_option(const implementation_type& impl,
-      Option& option, asio::error_code& ec) const
-  {
-    std::size_t size = option.size(impl.protocol_);
-    do_get_option(impl, option.level(impl.protocol_),
-        option.name(impl.protocol_),
-        option.data(impl.protocol_), &size, ec);
-    if (!ec)
-      option.resize(impl.protocol_, size);
-    return ec;
-  }
-
-  // Connect the socket to the specified endpoint.
-  asio::error_code connect(implementation_type& impl,
-      const endpoint_type& peer_endpoint, asio::error_code& ec)
-  {
-    return do_connect(impl, peer_endpoint.data(), ec);
-  }
-
-  // Start an asynchronous connect.
-  template <typename Handler>
-  void async_connect(implementation_type& impl,
-      const endpoint_type& peer_endpoint, Handler& handler)
-  {
-    bool is_continuation =
-      asio_handler_cont_helpers::is_continuation(handler);
-
-    // Allocate and construct an operation to wrap the handler.
-    typedef winrt_socket_connect_op<Handler> op;
-    typename op::ptr p = { asio::detail::addressof(handler),
-      op::ptr::allocate(handler), 0 };
-    p.p = new (p.v) op(handler);
-
-    ASIO_HANDLER_CREATION((io_context_.context(),
-          *p.p, "socket", &impl, 0, "async_connect"));
-
-    start_connect_op(impl, peer_endpoint.data(), p.p, is_continuation);
-    p.v = p.p = 0;
-  }
-};
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // defined(ASIO_WINDOWS_RUNTIME)
-
-#endif // ASIO_DETAIL_WINRT_SSOCKET_SERVICE_HPP
diff --git a/lib/asio/detail/winrt_ssocket_service_base.hpp b/lib/asio/detail/winrt_ssocket_service_base.hpp
deleted file mode 100644
index 61328d0..0000000
--- a/lib/asio/detail/winrt_ssocket_service_base.hpp
+++ /dev/null
@@ -1,359 +0,0 @@
-//
-// detail/winrt_ssocket_service_base.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_WINRT_SSOCKET_SERVICE_BASE_HPP
-#define ASIO_DETAIL_WINRT_SSOCKET_SERVICE_BASE_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-
-#if defined(ASIO_WINDOWS_RUNTIME)
-
-#include "asio/buffer.hpp"
-#include "asio/error.hpp"
-#include "asio/io_context.hpp"
-#include "asio/socket_base.hpp"
-#include "asio/detail/buffer_sequence_adapter.hpp"
-#include "asio/detail/memory.hpp"
-#include "asio/detail/socket_types.hpp"
-#include "asio/detail/winrt_async_manager.hpp"
-#include "asio/detail/winrt_socket_recv_op.hpp"
-#include "asio/detail/winrt_socket_send_op.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-class winrt_ssocket_service_base
-{
-public:
-  // The native type of a socket.
-  typedef Windows::Networking::Sockets::StreamSocket^ native_handle_type;
-
-  // The implementation type of the socket.
-  struct base_implementation_type
-  {
-    // Default constructor.
-    base_implementation_type()
-      : socket_(nullptr),
-        next_(0),
-        prev_(0)
-    {
-    }
-
-    // The underlying native socket.
-    native_handle_type socket_;
-
-    // Pointers to adjacent socket implementations in linked list.
-    base_implementation_type* next_;
-    base_implementation_type* prev_;
-  };
-
-  // Constructor.
-  ASIO_DECL winrt_ssocket_service_base(
-      asio::io_context& io_context);
-
-  // Destroy all user-defined handler objects owned by the service.
-  ASIO_DECL void base_shutdown();
-
-  // Construct a new socket implementation.
-  ASIO_DECL void construct(base_implementation_type&);
-
-  // Move-construct a new socket implementation.
-  ASIO_DECL void base_move_construct(base_implementation_type& impl,
-      base_implementation_type& other_impl);
-
-  // Move-assign from another socket implementation.
-  ASIO_DECL void base_move_assign(base_implementation_type& impl,
-      winrt_ssocket_service_base& other_service,
-      base_implementation_type& other_impl);
-
-  // Destroy a socket implementation.
-  ASIO_DECL void destroy(base_implementation_type& impl);
-
-  // Determine whether the socket is open.
-  bool is_open(const base_implementation_type& impl) const
-  {
-    return impl.socket_ != nullptr;
-  }
-
-  // Destroy a socket implementation.
-  ASIO_DECL asio::error_code close(
-      base_implementation_type& impl, asio::error_code& ec);
-
-  // Release ownership of the socket.
-  ASIO_DECL native_handle_type release(
-      base_implementation_type& impl, asio::error_code& ec);
-
-  // Get the native socket representation.
-  native_handle_type native_handle(base_implementation_type& impl)
-  {
-    return impl.socket_;
-  }
-
-  // Cancel all operations associated with the socket.
-  asio::error_code cancel(base_implementation_type&,
-      asio::error_code& ec)
-  {
-    ec = asio::error::operation_not_supported;
-    return ec;
-  }
-
-  // Determine whether the socket is at the out-of-band data mark.
-  bool at_mark(const base_implementation_type&,
-      asio::error_code& ec) const
-  {
-    ec = asio::error::operation_not_supported;
-    return false;
-  }
-
-  // Determine the number of bytes available for reading.
-  std::size_t available(const base_implementation_type&,
-      asio::error_code& ec) const
-  {
-    ec = asio::error::operation_not_supported;
-    return 0;
-  }
-
-  // Perform an IO control command on the socket.
-  template <typename IO_Control_Command>
-  asio::error_code io_control(base_implementation_type&,
-      IO_Control_Command&, asio::error_code& ec)
-  {
-    ec = asio::error::operation_not_supported;
-    return ec;
-  }
-
-  // Gets the non-blocking mode of the socket.
-  bool non_blocking(const base_implementation_type&) const
-  {
-    return false;
-  }
-
-  // Sets the non-blocking mode of the socket.
-  asio::error_code non_blocking(base_implementation_type&,
-      bool, asio::error_code& ec)
-  {
-    ec = asio::error::operation_not_supported;
-    return ec;
-  }
-
-  // Gets the non-blocking mode of the native socket implementation.
-  bool native_non_blocking(const base_implementation_type&) const
-  {
-    return false;
-  }
-
-  // Sets the non-blocking mode of the native socket implementation.
-  asio::error_code native_non_blocking(base_implementation_type&,
-      bool, asio::error_code& ec)
-  {
-    ec = asio::error::operation_not_supported;
-    return ec;
-  }
-
-  // Disable sends or receives on the socket.
-  asio::error_code shutdown(base_implementation_type&,
-      socket_base::shutdown_type, asio::error_code& ec)
-  {
-    ec = asio::error::operation_not_supported;
-    return ec;
-  }
-
-  // Send the given data to the peer.
-  template <typename ConstBufferSequence>
-  std::size_t send(base_implementation_type& impl,
-      const ConstBufferSequence& buffers,
-      socket_base::message_flags flags, asio::error_code& ec)
-  {
-    return do_send(impl,
-        buffer_sequence_adapter<asio::const_buffer,
-          ConstBufferSequence>::first(buffers), flags, ec);
-  }
-
-  // Wait until data can be sent without blocking.
-  std::size_t send(base_implementation_type&, const null_buffers&,
-      socket_base::message_flags, asio::error_code& ec)
-  {
-    ec = asio::error::operation_not_supported;
-    return 0;
-  }
-
-  // Start an asynchronous send. The data being sent must be valid for the
-  // lifetime of the asynchronous operation.
-  template <typename ConstBufferSequence, typename Handler>
-  void async_send(base_implementation_type& impl,
-      const ConstBufferSequence& buffers,
-      socket_base::message_flags flags, Handler& handler)
-  {
-    bool is_continuation =
-      asio_handler_cont_helpers::is_continuation(handler);
-
-    // Allocate and construct an operation to wrap the handler.
-    typedef winrt_socket_send_op<ConstBufferSequence, Handler> op;
-    typename op::ptr p = { asio::detail::addressof(handler),
-      op::ptr::allocate(handler), 0 };
-    p.p = new (p.v) op(buffers, handler);
-
-    ASIO_HANDLER_CREATION((io_context_.context(),
-          *p.p, "socket", &impl, 0, "async_send"));
-
-    start_send_op(impl,
-        buffer_sequence_adapter<asio::const_buffer,
-          ConstBufferSequence>::first(buffers),
-        flags, p.p, is_continuation);
-    p.v = p.p = 0;
-  }
-
-  // Start an asynchronous wait until data can be sent without blocking.
-  template <typename Handler>
-  void async_send(base_implementation_type&, const null_buffers&,
-      socket_base::message_flags, Handler& handler)
-  {
-    asio::error_code ec = asio::error::operation_not_supported;
-    const std::size_t bytes_transferred = 0;
-    io_context_.get_io_context().post(
-        detail::bind_handler(handler, ec, bytes_transferred));
-  }
-
-  // Receive some data from the peer. Returns the number of bytes received.
-  template <typename MutableBufferSequence>
-  std::size_t receive(base_implementation_type& impl,
-      const MutableBufferSequence& buffers,
-      socket_base::message_flags flags, asio::error_code& ec)
-  {
-    return do_receive(impl,
-        buffer_sequence_adapter<asio::mutable_buffer,
-          MutableBufferSequence>::first(buffers), flags, ec);
-  }
-
-  // Wait until data can be received without blocking.
-  std::size_t receive(base_implementation_type&, const null_buffers&,
-      socket_base::message_flags, asio::error_code& ec)
-  {
-    ec = asio::error::operation_not_supported;
-    return 0;
-  }
-
-  // Start an asynchronous receive. The buffer for the data being received
-  // must be valid for the lifetime of the asynchronous operation.
-  template <typename MutableBufferSequence, typename Handler>
-  void async_receive(base_implementation_type& impl,
-      const MutableBufferSequence& buffers,
-      socket_base::message_flags flags, Handler& handler)
-  {
-    bool is_continuation =
-      asio_handler_cont_helpers::is_continuation(handler);
-
-    // Allocate and construct an operation to wrap the handler.
-    typedef winrt_socket_recv_op<MutableBufferSequence, Handler> op;
-    typename op::ptr p = { asio::detail::addressof(handler),
-      op::ptr::allocate(handler), 0 };
-    p.p = new (p.v) op(buffers, handler);
-
-    ASIO_HANDLER_CREATION((io_context_.context(),
-          *p.p, "socket", &impl, 0, "async_receive"));
-
-    start_receive_op(impl,
-        buffer_sequence_adapter<asio::mutable_buffer,
-          MutableBufferSequence>::first(buffers),
-        flags, p.p, is_continuation);
-    p.v = p.p = 0;
-  }
-
-  // Wait until data can be received without blocking.
-  template <typename Handler>
-  void async_receive(base_implementation_type&, const null_buffers&,
-      socket_base::message_flags, Handler& handler)
-  {
-    asio::error_code ec = asio::error::operation_not_supported;
-    const std::size_t bytes_transferred = 0;
-    io_context_.get_io_context().post(
-        detail::bind_handler(handler, ec, bytes_transferred));
-  }
-
-protected:
-  // Helper function to obtain endpoints associated with the connection.
-  ASIO_DECL std::size_t do_get_endpoint(
-      const base_implementation_type& impl, bool local,
-      void* addr, std::size_t addr_len, asio::error_code& ec) const;
-
-  // Helper function to set a socket option.
-  ASIO_DECL asio::error_code do_set_option(
-      base_implementation_type& impl,
-      int level, int optname, const void* optval,
-      std::size_t optlen, asio::error_code& ec);
-
-  // Helper function to get a socket option.
-  ASIO_DECL void do_get_option(
-      const base_implementation_type& impl,
-      int level, int optname, void* optval,
-      std::size_t* optlen, asio::error_code& ec) const;
-
-  // Helper function to perform a synchronous connect.
-  ASIO_DECL asio::error_code do_connect(
-      base_implementation_type& impl,
-      const void* addr, asio::error_code& ec);
-
-  // Helper function to start an asynchronous connect.
-  ASIO_DECL void start_connect_op(
-      base_implementation_type& impl, const void* addr,
-      winrt_async_op<void>* op, bool is_continuation);
-
-  // Helper function to perform a synchronous send.
-  ASIO_DECL std::size_t do_send(
-      base_implementation_type& impl, const asio::const_buffer& data,
-      socket_base::message_flags flags, asio::error_code& ec);
-
-  // Helper function to start an asynchronous send.
-  ASIO_DECL void start_send_op(base_implementation_type& impl,
-      const asio::const_buffer& data, socket_base::message_flags flags,
-      winrt_async_op<unsigned int>* op, bool is_continuation);
-
-  // Helper function to perform a synchronous receive.
-  ASIO_DECL std::size_t do_receive(
-      base_implementation_type& impl, const asio::mutable_buffer& data,
-      socket_base::message_flags flags, asio::error_code& ec);
-
-  // Helper function to start an asynchronous receive.
-  ASIO_DECL void start_receive_op(base_implementation_type& impl,
-      const asio::mutable_buffer& data, socket_base::message_flags flags,
-      winrt_async_op<Windows::Storage::Streams::IBuffer^>* op,
-      bool is_continuation);
-
-  // The io_context implementation used for delivering completions.
-  io_context_impl& io_context_;
-
-  // The manager that keeps track of outstanding operations.
-  winrt_async_manager& async_manager_;
-
-  // Mutex to protect access to the linked list of implementations. 
-  asio::detail::mutex mutex_;
-
-  // The head of a linked list of all implementations.
-  base_implementation_type* impl_list_;
-};
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#if defined(ASIO_HEADER_ONLY)
-# include "asio/detail/impl/winrt_ssocket_service_base.ipp"
-#endif // defined(ASIO_HEADER_ONLY)
-
-#endif // defined(ASIO_WINDOWS_RUNTIME)
-
-#endif // ASIO_DETAIL_WINRT_SSOCKET_SERVICE_BASE_HPP
diff --git a/lib/asio/detail/winrt_timer_scheduler.hpp b/lib/asio/detail/winrt_timer_scheduler.hpp
deleted file mode 100644
index 5dec7c0..0000000
--- a/lib/asio/detail/winrt_timer_scheduler.hpp
+++ /dev/null
@@ -1,137 +0,0 @@
-//
-// detail/winrt_timer_scheduler.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_WINRT_TIMER_SCHEDULER_HPP
-#define ASIO_DETAIL_WINRT_TIMER_SCHEDULER_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-
-#if defined(ASIO_WINDOWS_RUNTIME)
-
-#include <cstddef>
-#include "asio/detail/event.hpp"
-#include "asio/detail/limits.hpp"
-#include "asio/detail/mutex.hpp"
-#include "asio/detail/op_queue.hpp"
-#include "asio/detail/thread.hpp"
-#include "asio/detail/timer_queue_base.hpp"
-#include "asio/detail/timer_queue_set.hpp"
-#include "asio/detail/wait_op.hpp"
-#include "asio/io_context.hpp"
-
-#if defined(ASIO_HAS_IOCP)
-# include "asio/detail/thread.hpp"
-#endif // defined(ASIO_HAS_IOCP)
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-class winrt_timer_scheduler
-  : public asio::detail::service_base<winrt_timer_scheduler>
-{
-public:
-  // Constructor.
-  ASIO_DECL winrt_timer_scheduler(asio::io_context& io_context);
-
-  // Destructor.
-  ASIO_DECL ~winrt_timer_scheduler();
-
-  // Destroy all user-defined handler objects owned by the service.
-  ASIO_DECL void shutdown();
-
-  // Recreate internal descriptors following a fork.
-  ASIO_DECL void notify_fork(
-      asio::io_context::fork_event fork_ev);
-
-  // Initialise the task. No effect as this class uses its own thread.
-  ASIO_DECL void init_task();
-
-  // Add a new timer queue to the reactor.
-  template <typename Time_Traits>
-  void add_timer_queue(timer_queue<Time_Traits>& queue);
-
-  // Remove a timer queue from the reactor.
-  template <typename Time_Traits>
-  void remove_timer_queue(timer_queue<Time_Traits>& queue);
-
-  // Schedule a new operation in the given timer queue to expire at the
-  // specified absolute time.
-  template <typename Time_Traits>
-  void schedule_timer(timer_queue<Time_Traits>& queue,
-      const typename Time_Traits::time_type& time,
-      typename timer_queue<Time_Traits>::per_timer_data& timer, wait_op* op);
-
-  // Cancel the timer operations associated with the given token. Returns the
-  // number of operations that have been posted or dispatched.
-  template <typename Time_Traits>
-  std::size_t cancel_timer(timer_queue<Time_Traits>& queue,
-      typename timer_queue<Time_Traits>::per_timer_data& timer,
-      std::size_t max_cancelled = (std::numeric_limits<std::size_t>::max)());
-
-  // Move the timer operations associated with the given timer.
-  template <typename Time_Traits>
-  void move_timer(timer_queue<Time_Traits>& queue,
-      typename timer_queue<Time_Traits>::per_timer_data& to,
-      typename timer_queue<Time_Traits>::per_timer_data& from);
-
-private:
-  // Run the select loop in the thread.
-  ASIO_DECL void run_thread();
-
-  // Entry point for the select loop thread.
-  ASIO_DECL static void call_run_thread(winrt_timer_scheduler* reactor);
-
-  // Helper function to add a new timer queue.
-  ASIO_DECL void do_add_timer_queue(timer_queue_base& queue);
-
-  // Helper function to remove a timer queue.
-  ASIO_DECL void do_remove_timer_queue(timer_queue_base& queue);
-
-  // The io_context implementation used to post completions.
-  io_context_impl& io_context_;
-
-  // Mutex used to protect internal variables.
-  asio::detail::mutex mutex_;
-
-  // Event used to wake up background thread.
-  asio::detail::event event_;
-
-  // The timer queues.
-  timer_queue_set timer_queues_;
-
-  // The background thread that is waiting for timers to expire.
-  asio::detail::thread* thread_;
-
-  // Does the background thread need to stop.
-  bool stop_thread_;
-
-  // Whether the service has been shut down.
-  bool shutdown_;
-};
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#include "asio/detail/impl/winrt_timer_scheduler.hpp"
-#if defined(ASIO_HEADER_ONLY)
-# include "asio/detail/impl/winrt_timer_scheduler.ipp"
-#endif // defined(ASIO_HEADER_ONLY)
-
-#endif // defined(ASIO_WINDOWS_RUNTIME)
-
-#endif // ASIO_DETAIL_WINRT_TIMER_SCHEDULER_HPP
diff --git a/lib/asio/detail/winrt_utils.hpp b/lib/asio/detail/winrt_utils.hpp
deleted file mode 100644
index 22a2489..0000000
--- a/lib/asio/detail/winrt_utils.hpp
+++ /dev/null
@@ -1,106 +0,0 @@
-//
-// detail/winrt_utils.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_WINRT_UTILS_HPP
-#define ASIO_DETAIL_WINRT_UTILS_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-
-#if defined(ASIO_WINDOWS_RUNTIME)
-
-#include <codecvt>
-#include <cstdlib>
-#include <future>
-#include <locale>
-#include <robuffer.h>
-#include <windows.storage.streams.h>
-#include <wrl/implements.h>
-#include "asio/buffer.hpp"
-#include "asio/error_code.hpp"
-#include "asio/detail/memory.hpp"
-#include "asio/detail/socket_ops.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-namespace winrt_utils {
-
-inline Platform::String^ string(const char* from)
-{
-  std::wstring tmp(from, from + std::strlen(from));
-  return ref new Platform::String(tmp.c_str());
-}
-
-inline Platform::String^ string(const std::string& from)
-{
-  std::wstring tmp(from.begin(), from.end());
-  return ref new Platform::String(tmp.c_str());
-}
-
-inline std::string string(Platform::String^ from)
-{
-  std::wstring_convert<std::codecvt_utf8<wchar_t>> converter;
-  return converter.to_bytes(from->Data());
-}
-
-inline Platform::String^ string(unsigned short from)
-{
-  return string(std::to_string(from));
-}
-
-template <typename T>
-inline Platform::String^ string(const T& from)
-{
-  return string(from.to_string());
-}
-
-inline int integer(Platform::String^ from)
-{
-  return _wtoi(from->Data());
-}
-
-template <typename T>
-inline Windows::Networking::HostName^ host_name(const T& from)
-{
-  return ref new Windows::Networking::HostName((string)(from));
-}
-
-template <typename ConstBufferSequence>
-inline Windows::Storage::Streams::IBuffer^ buffer_dup(
-    const ConstBufferSequence& buffers)
-{
-  using Microsoft::WRL::ComPtr;
-  using asio::buffer_size;
-  std::size_t size = buffer_size(buffers);
-  auto b = ref new Windows::Storage::Streams::Buffer(size);
-  ComPtr<IInspectable> insp = reinterpret_cast<IInspectable*>(b);
-  ComPtr<Windows::Storage::Streams::IBufferByteAccess> bacc;
-  insp.As(&bacc);
-  byte* bytes = nullptr;
-  bacc->Buffer(&bytes);
-  asio::buffer_copy(asio::buffer(bytes, size), buffers);
-  b->Length = size;
-  return b;
-}
-
-} // namespace winrt_utils
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // defined(ASIO_WINDOWS_RUNTIME)
-
-#endif // ASIO_DETAIL_WINRT_UTILS_HPP
diff --git a/lib/asio/detail/winsock_init.hpp b/lib/asio/detail/winsock_init.hpp
deleted file mode 100644
index 9094363..0000000
--- a/lib/asio/detail/winsock_init.hpp
+++ /dev/null
@@ -1,128 +0,0 @@
-//
-// detail/winsock_init.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_WINSOCK_INIT_HPP
-#define ASIO_DETAIL_WINSOCK_INIT_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-
-#if defined(ASIO_WINDOWS) || defined(__CYGWIN__)
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-class winsock_init_base
-{
-protected:
-  // Structure to track result of initialisation and number of uses. POD is used
-  // to ensure that the values are zero-initialised prior to any code being run.
-  struct data
-  {
-    long init_count_;
-    long result_;
-  };
-
-  ASIO_DECL static void startup(data& d,
-      unsigned char major, unsigned char minor);
-
-  ASIO_DECL static void manual_startup(data& d);
-
-  ASIO_DECL static void cleanup(data& d);
-
-  ASIO_DECL static void manual_cleanup(data& d);
-
-  ASIO_DECL static void throw_on_error(data& d);
-};
-
-template <int Major = 2, int Minor = 0>
-class winsock_init : private winsock_init_base
-{
-public:
-  winsock_init(bool allow_throw = true)
-  {
-    startup(data_, Major, Minor);
-    if (allow_throw)
-      throw_on_error(data_);
-  }
-
-  winsock_init(const winsock_init&)
-  {
-    startup(data_, Major, Minor);
-    throw_on_error(data_);
-  }
-
-  ~winsock_init()
-  {
-    cleanup(data_);
-  }
-
-  // This class may be used to indicate that user code will manage Winsock
-  // initialisation and cleanup. This may be required in the case of a DLL, for
-  // example, where it is not safe to initialise Winsock from global object
-  // constructors.
-  //
-  // To prevent asio from initialising Winsock, the object must be constructed
-  // before any Asio's own global objects. With MSVC, this may be accomplished
-  // by adding the following code to the DLL:
-  //
-  //   #pragma warning(push)
-  //   #pragma warning(disable:4073)
-  //   #pragma init_seg(lib)
-  //   asio::detail::winsock_init<>::manual manual_winsock_init;
-  //   #pragma warning(pop)
-  class manual
-  {
-  public:
-    manual()
-    {
-      manual_startup(data_);
-    }
-
-    manual(const manual&)
-    {
-      manual_startup(data_);
-    }
-
-    ~manual()
-    {
-      manual_cleanup(data_);
-    }
-  };
-
-private:
-  friend class manual;
-  static data data_;
-};
-
-template <int Major, int Minor>
-winsock_init_base::data winsock_init<Major, Minor>::data_;
-
-// Static variable to ensure that winsock is initialised before main, and
-// therefore before any other threads can get started.
-static const winsock_init<>& winsock_init_instance = winsock_init<>(false);
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#if defined(ASIO_HEADER_ONLY)
-# include "asio/detail/impl/winsock_init.ipp"
-#endif // defined(ASIO_HEADER_ONLY)
-
-#endif // defined(ASIO_WINDOWS) || defined(__CYGWIN__)
-
-#endif // ASIO_DETAIL_WINSOCK_INIT_HPP
diff --git a/lib/asio/detail/work_dispatcher.hpp b/lib/asio/detail/work_dispatcher.hpp
deleted file mode 100644
index 7abce49..0000000
--- a/lib/asio/detail/work_dispatcher.hpp
+++ /dev/null
@@ -1,72 +0,0 @@
-//
-// detail/work_dispatcher.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_WORK_DISPATCHER_HPP
-#define ASIO_DETAIL_WORK_DISPATCHER_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-#include "asio/associated_executor.hpp"
-#include "asio/associated_allocator.hpp"
-#include "asio/executor_work_guard.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-template <typename Handler>
-class work_dispatcher
-{
-public:
-  work_dispatcher(Handler& handler)
-    : work_((get_associated_executor)(handler)),
-      handler_(ASIO_MOVE_CAST(Handler)(handler))
-  {
-  }
-
-#if defined(ASIO_HAS_MOVE)
-  work_dispatcher(const work_dispatcher& other)
-    : work_(other.work_),
-      handler_(other.handler_)
-  {
-  }
-
-  work_dispatcher(work_dispatcher&& other)
-    : work_(ASIO_MOVE_CAST(executor_work_guard<
-        typename associated_executor<Handler>::type>)(other.work_)),
-      handler_(ASIO_MOVE_CAST(Handler)(other.handler_))
-  {
-  }
-#endif // defined(ASIO_HAS_MOVE)
-
-  void operator()()
-  {
-    typename associated_allocator<Handler>::type alloc(
-        (get_associated_allocator)(handler_));
-    work_.get_executor().dispatch(
-        ASIO_MOVE_CAST(Handler)(handler_), alloc);
-    work_.reset();
-  }
-
-private:
-  executor_work_guard<typename associated_executor<Handler>::type> work_;
-  Handler handler_;
-};
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // ASIO_DETAIL_WORK_DISPATCHER_HPP
diff --git a/lib/asio/detail/wrapped_handler.hpp b/lib/asio/detail/wrapped_handler.hpp
deleted file mode 100644
index 751f0ea..0000000
--- a/lib/asio/detail/wrapped_handler.hpp
+++ /dev/null
@@ -1,291 +0,0 @@
-//
-// detail/wrapped_handler.hpp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// Distributed under the Boost Software License, Version 1.0. (See accompanying
-// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
-//
-
-#ifndef ASIO_DETAIL_WRAPPED_HANDLER_HPP
-#define ASIO_DETAIL_WRAPPED_HANDLER_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/bind_handler.hpp"
-#include "asio/detail/handler_alloc_helpers.hpp"
-#include "asio/detail/handler_cont_helpers.hpp"
-#include "asio/detail/handler_invoke_helpers.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-
-struct is_continuation_delegated
-{
-  template <typename Dispatcher, typename Handler>
-  bool operator()(Dispatcher&, Handler& handler) const
-  {
-    return asio_handler_cont_helpers::is_continuation(handler);
-  }
-};
-
-struct is_continuation_if_running
-{
-  template <typename Dispatcher, typename Handler>
-  bool operator()(Dispatcher& dispatcher, Handler&) const
-  {
-    return dispatcher.running_in_this_thread();
-  }
-};
-
-template <typename Dispatcher, typename Handler,
-    typename IsContinuation = is_continuation_delegated>
-class wrapped_handler
-{
-public:
-  typedef void result_type;
-
-  wrapped_handler(Dispatcher dispatcher, Handler& handler)
-    : dispatcher_(dispatcher),
-      handler_(ASIO_MOVE_CAST(Handler)(handler))
-  {
-  }
-
-#if defined(ASIO_HAS_MOVE)
-  wrapped_handler(const wrapped_handler& other)
-    : dispatcher_(other.dispatcher_),
-      handler_(other.handler_)
-  {
-  }
-
-  wrapped_handler(wrapped_handler&& other)
-    : dispatcher_(other.dispatcher_),
-      handler_(ASIO_MOVE_CAST(Handler)(other.handler_))
-  {
-  }
-#endif // defined(ASIO_HAS_MOVE)
-
-  void operator()()
-  {
-    dispatcher_.dispatch(ASIO_MOVE_CAST(Handler)(handler_));
-  }
-
-  void operator()() const
-  {
-    dispatcher_.dispatch(handler_);
-  }
-
-  template <typename Arg1>
-  void operator()(const Arg1& arg1)
-  {
-    dispatcher_.dispatch(detail::bind_handler(handler_, arg1));
-  }
-
-  template <typename Arg1>
-  void operator()(const Arg1& arg1) const
-  {
-    dispatcher_.dispatch(detail::bind_handler(handler_, arg1));
-  }
-
-  template <typename Arg1, typename Arg2>
-  void operator()(const Arg1& arg1, const Arg2& arg2)
-  {
-    dispatcher_.dispatch(detail::bind_handler(handler_, arg1, arg2));
-  }
-
-  template <typename Arg1, typename Arg2>
-  void operator()(const Arg1& arg1, const Arg2& arg2) const
-  {
-    dispatcher_.dispatch(detail::bind_handler(handler_, arg1, arg2));
-  }
-
-  template <typename Arg1, typename Arg2, typename Arg3>
-  void operator()(const Arg1& arg1, const Arg2& arg2, const Arg3& arg3)
-  {
-    dispatcher_.dispatch(detail::bind_handler(handler_, arg1, arg2, arg3));
-  }
-
-  template <typename Arg1, typename Arg2, typename Arg3>
-  void operator()(const Arg1& arg1, const Arg2& arg2, const Arg3& arg3) const
-  {
-    dispatcher_.dispatch(detail::bind_handler(handler_, arg1, arg2, arg3));
-  }
-
-  template <typename Arg1, typename Arg2, typename Arg3, typename Arg4>
-  void operator()(const Arg1& arg1, const Arg2& arg2, const Arg3& arg3,
-      const Arg4& arg4)
-  {
-    dispatcher_.dispatch(
-        detail::bind_handler(handler_, arg1, arg2, arg3, arg4));
-  }
-
-  template <typename Arg1, typename Arg2, typename Arg3, typename Arg4>
-  void operator()(const Arg1& arg1, const Arg2& arg2, const Arg3& arg3,
-      const Arg4& arg4) const
-  {
-    dispatcher_.dispatch(
-        detail::bind_handler(handler_, arg1, arg2, arg3, arg4));
-  }
-
-  template <typename Arg1, typename Arg2, typename Arg3, typename Arg4,
-      typename Arg5>
-  void operator()(const Arg1& arg1, const Arg2& arg2, const Arg3& arg3,
-      const Arg4& arg4, const Arg5& arg5)
-  {
-    dispatcher_.dispatch(
-        detail::bind_handler(handler_, arg1, arg2, arg3, arg4, arg5));
-  }
-
-  template <typename Arg1, typename Arg2, typename Arg3, typename Arg4,
-      typename Arg5>
-  void operator()(const Arg1& arg1, const Arg2& arg2, const Arg3& arg3,
-      const Arg4& arg4, const Arg5& arg5) const
-  {
-    dispatcher_.dispatch(
-        detail::bind_handler(handler_, arg1, arg2, arg3, arg4, arg5));
-  }
-
-//private:
-  Dispatcher dispatcher_;
-  Handler handler_;
-};
-
-template <typename Handler, typename Context>
-class rewrapped_handler
-{
-public:
-  explicit rewrapped_handler(Handler& handler, const Context& context)
-    : context_(context),
-      handler_(ASIO_MOVE_CAST(Handler)(handler))
-  {
-  }
-
-  explicit rewrapped_handler(const Handler& handler, const Context& context)
-    : context_(context),
-      handler_(handler)
-  {
-  }
-
-#if defined(ASIO_HAS_MOVE)
-  rewrapped_handler(const rewrapped_handler& other)
-    : context_(other.context_),
-      handler_(other.handler_)
-  {
-  }
-
-  rewrapped_handler(rewrapped_handler&& other)
-    : context_(ASIO_MOVE_CAST(Context)(other.context_)),
-      handler_(ASIO_MOVE_CAST(Handler)(other.handler_))
-  {
-  }
-#endif // defined(ASIO_HAS_MOVE)
-
-  void operator()()
-  {
-    handler_();
-  }
-
-  void operator()() const
-  {
-    handler_();
-  }
-
-//private:
-  Context context_;
-  Handler handler_;
-};
-
-template <typename Dispatcher, typename Handler, typename IsContinuation>
-inline void* asio_handler_allocate(std::size_t size,
-    wrapped_handler<Dispatcher, Handler, IsContinuation>* this_handler)
-{
-  return asio_handler_alloc_helpers::allocate(
-      size, this_handler->handler_);
-}
-
-template <typename Dispatcher, typename Handler, typename IsContinuation>
-inline void asio_handler_deallocate(void* pointer, std::size_t size,
-    wrapped_handler<Dispatcher, Handler, IsContinuation>* this_handler)
-{
-  asio_handler_alloc_helpers::deallocate(
-      pointer, size, this_handler->handler_);
-}
-
-template <typename Dispatcher, typename Handler, typename IsContinuation>
-inline bool asio_handler_is_continuation(
-    wrapped_handler<Dispatcher, Handler, IsContinuation>* this_handler)
-{
-  return IsContinuation()(this_handler->dispatcher_, this_handler->handler_);
-}
-
-template <typename Function, typename Dispatcher,
-    typename Handler, typename IsContinuation>
-inline void asio_handler_invoke(Function& function,
-    wrapped_handler<Dispatcher, Handler, IsContinuation>* this_handler)
-{
-  this_handler->dispatcher_.dispatch(
-      rewrapped_handler<Function, Handler>(
-        function, this_handler->handler_));
-}
-
-template <typename Function, typename Dispatcher,
-    typename Handler, typename IsContinuation>
-inline void asio_handler_invoke(const Function& function,
-    wrapped_handler<Dispatcher, Handler, IsContinuation>* this_handler)
-{
-  this_handler->dispatcher_.dispatch(
-      rewrapped_handler<Function, Handler>(
-        function, this_handler->handler_));
-}
-
-template <typename Handler, typename Context>
-inline void* asio_handler_allocate(std::size_t size,
-    rewrapped_handler<Handler, Context>* this_handler)
-{
-  return asio_handler_alloc_helpers::allocate(
-      size, this_handler->context_);
-}
-
-template <typename Handler, typename Context>
-inline void asio_handler_deallocate(void* pointer, std::size_t size,
-    rewrapped_handler<Handler, Context>* this_handler)
-{
-  asio_handler_alloc_helpers::deallocate(
-      pointer, size, this_handler->context_);
-}
-
-template <typename Dispatcher, typename Context>
-inline bool asio_handler_is_continuation(
-    rewrapped_handler<Dispatcher, Context>* this_handler)
-{
-  return asio_handler_cont_helpers::is_continuation(
-      this_handler->context_);
-}
-
-template <typename Function, typename Handler, typename Context>
-inline void asio_handler_invoke(Function& function,
-    rewrapped_handler<Handler, Context>* this_handler)
-{
-  asio_handler_invoke_helpers::invoke(
-      function, this_handler->context_);
-}
-
-template <typename Function, typename Handler, typename Context>
-inline void asio_handler_invoke(const Function& function,
-    rewrapped_handler<Handler, Context>* this_handler)
-{
-  asio_handler_invoke_helpers::invoke(
-      function, this_handler->context_);
-}
-
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // ASIO_DETAIL_WRAPPED_HANDLER_HPP