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-rw-r--r--lib/asio/impl/execution_context.hpp107
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diff --git a/lib/asio/impl/execution_context.hpp b/lib/asio/impl/execution_context.hpp
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+//
+// impl/execution_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_IMPL_EXECUTION_CONTEXT_HPP
+#define ASIO_IMPL_EXECUTION_CONTEXT_HPP
+
+#if defined(_MSC_VER) && (_MSC_VER >= 1200)
+# pragma once
+#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
+
+#include "asio/detail/handler_type_requirements.hpp"
+#include "asio/detail/scoped_ptr.hpp"
+#include "asio/detail/service_registry.hpp"
+
+#include "asio/detail/push_options.hpp"
+
+namespace asio {
+
+template <typename Service>
+inline Service& use_service(execution_context& e)
+{
+ // Check that Service meets the necessary type requirements.
+ (void)static_cast<execution_context::service*>(static_cast<Service*>(0));
+
+ return e.service_registry_->template use_service<Service>();
+}
+
+#if !defined(GENERATING_DOCUMENTATION)
+# if defined(ASIO_HAS_VARIADIC_TEMPLATES)
+
+template <typename Service, typename... Args>
+Service& make_service(execution_context& e, ASIO_MOVE_ARG(Args)... args)
+{
+ detail::scoped_ptr<Service> svc(
+ new Service(e, ASIO_MOVE_CAST(Args)(args)...));
+ e.service_registry_->template add_service<Service>(svc.get());
+ Service& result = *svc;
+ svc.release();
+ return result;
+}
+
+# else // defined(ASIO_HAS_VARIADIC_TEMPLATES)
+
+template <typename Service>
+Service& make_service(execution_context& e)
+{
+ detail::scoped_ptr<Service> svc(new Service(e));
+ e.service_registry_->template add_service<Service>(svc.get());
+ Service& result = *svc;
+ svc.release();
+ return result;
+}
+
+#define ASIO_PRIVATE_MAKE_SERVICE_DEF(n) \
+ template <typename Service, ASIO_VARIADIC_TPARAMS(n)> \
+ Service& make_service(execution_context& e, \
+ ASIO_VARIADIC_MOVE_PARAMS(n)) \
+ { \
+ detail::scoped_ptr<Service> svc( \
+ new Service(e, ASIO_VARIADIC_MOVE_ARGS(n))); \
+ e.service_registry_->template add_service<Service>(svc.get()); \
+ Service& result = *svc; \
+ svc.release(); \
+ return result; \
+ } \
+ /**/
+ ASIO_VARIADIC_GENERATE(ASIO_PRIVATE_MAKE_SERVICE_DEF)
+#undef ASIO_PRIVATE_MAKE_SERVICE_DEF
+
+# endif // defined(ASIO_HAS_VARIADIC_TEMPLATES)
+#endif // !defined(GENERATING_DOCUMENTATION)
+
+template <typename Service>
+inline void add_service(execution_context& e, Service* svc)
+{
+ // Check that Service meets the necessary type requirements.
+ (void)static_cast<execution_context::service*>(static_cast<Service*>(0));
+
+ e.service_registry_->template add_service<Service>(svc);
+}
+
+template <typename Service>
+inline bool has_service(execution_context& e)
+{
+ // Check that Service meets the necessary type requirements.
+ (void)static_cast<execution_context::service*>(static_cast<Service*>(0));
+
+ return e.service_registry_->template has_service<Service>();
+}
+
+inline execution_context& execution_context::service::context()
+{
+ return owner_;
+}
+
+} // namespace asio
+
+#include "asio/detail/pop_options.hpp"
+
+#endif // ASIO_IMPL_EXECUTION_CONTEXT_HPP