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authorMatthias P. Braendli <matthias.braendli@mpb.li>2019-08-13 10:29:39 +0200
committerMatthias P. Braendli <matthias.braendli@mpb.li>2019-08-13 10:29:39 +0200
commita5c50a4f262f0a880734623f79d4dc2f1aa8a0a2 (patch)
tree1772ef47d98a68245c3d04d95637e5b9c1040904 /lib/asio/impl/read_at.hpp
parent69aba72f0883c5effb5c3c2991d0c5257deb7409 (diff)
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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/
Diffstat (limited to 'lib/asio/impl/read_at.hpp')
-rw-r--r--lib/asio/impl/read_at.hpp640
1 files changed, 0 insertions, 640 deletions
diff --git a/lib/asio/impl/read_at.hpp b/lib/asio/impl/read_at.hpp
deleted file mode 100644
index d736d4d..0000000
--- a/lib/asio/impl/read_at.hpp
+++ /dev/null
@@ -1,640 +0,0 @@
-//
-// impl/read_at.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_READ_AT_HPP
-#define ASIO_IMPL_READ_AT_HPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include <algorithm>
-#include "asio/associated_allocator.hpp"
-#include "asio/associated_executor.hpp"
-#include "asio/buffer.hpp"
-#include "asio/completion_condition.hpp"
-#include "asio/detail/array_fwd.hpp"
-#include "asio/detail/base_from_completion_cond.hpp"
-#include "asio/detail/bind_handler.hpp"
-#include "asio/detail/consuming_buffers.hpp"
-#include "asio/detail/dependent_type.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/handler_type_requirements.hpp"
-#include "asio/detail/throw_error.hpp"
-#include "asio/error.hpp"
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-
-namespace detail
-{
- template <typename SyncRandomAccessReadDevice, typename MutableBufferSequence,
- typename MutableBufferIterator, typename CompletionCondition>
- std::size_t read_at_buffer_sequence(SyncRandomAccessReadDevice& d,
- uint64_t offset, const MutableBufferSequence& buffers,
- const MutableBufferIterator&, CompletionCondition completion_condition,
- asio::error_code& ec)
- {
- ec = asio::error_code();
- asio::detail::consuming_buffers<mutable_buffer,
- MutableBufferSequence, MutableBufferIterator> tmp(buffers);
- while (!tmp.empty())
- {
- if (std::size_t max_size = detail::adapt_completion_condition_result(
- completion_condition(ec, tmp.total_consumed())))
- {
- tmp.consume(d.read_some_at(offset + tmp.total_consumed(),
- tmp.prepare(max_size), ec));
- }
- else
- break;
- }
- return tmp.total_consumed();;
- }
-} // namespace detail
-
-template <typename SyncRandomAccessReadDevice, typename MutableBufferSequence,
- typename CompletionCondition>
-std::size_t read_at(SyncRandomAccessReadDevice& d,
- uint64_t offset, const MutableBufferSequence& buffers,
- CompletionCondition completion_condition, asio::error_code& ec)
-{
- return detail::read_at_buffer_sequence(d, offset, buffers,
- asio::buffer_sequence_begin(buffers), completion_condition, ec);
-}
-
-template <typename SyncRandomAccessReadDevice, typename MutableBufferSequence>
-inline std::size_t read_at(SyncRandomAccessReadDevice& d,
- uint64_t offset, const MutableBufferSequence& buffers)
-{
- asio::error_code ec;
- std::size_t bytes_transferred = read_at(
- d, offset, buffers, transfer_all(), ec);
- asio::detail::throw_error(ec, "read_at");
- return bytes_transferred;
-}
-
-template <typename SyncRandomAccessReadDevice, typename MutableBufferSequence>
-inline std::size_t read_at(SyncRandomAccessReadDevice& d,
- uint64_t offset, const MutableBufferSequence& buffers,
- asio::error_code& ec)
-{
- return read_at(d, offset, buffers, transfer_all(), ec);
-}
-
-template <typename SyncRandomAccessReadDevice, typename MutableBufferSequence,
- typename CompletionCondition>
-inline std::size_t read_at(SyncRandomAccessReadDevice& d,
- uint64_t offset, const MutableBufferSequence& buffers,
- CompletionCondition completion_condition)
-{
- asio::error_code ec;
- std::size_t bytes_transferred = read_at(
- d, offset, buffers, completion_condition, ec);
- asio::detail::throw_error(ec, "read_at");
- return bytes_transferred;
-}
-
-#if !defined(ASIO_NO_EXTENSIONS)
-#if !defined(ASIO_NO_IOSTREAM)
-
-template <typename SyncRandomAccessReadDevice, typename Allocator,
- typename CompletionCondition>
-std::size_t read_at(SyncRandomAccessReadDevice& d,
- uint64_t offset, asio::basic_streambuf<Allocator>& b,
- CompletionCondition completion_condition, asio::error_code& ec)
-{
- ec = asio::error_code();
- std::size_t total_transferred = 0;
- std::size_t max_size = detail::adapt_completion_condition_result(
- completion_condition(ec, total_transferred));
- std::size_t bytes_available = read_size_helper(b, max_size);
- while (bytes_available > 0)
- {
- std::size_t bytes_transferred = d.read_some_at(
- offset + total_transferred, b.prepare(bytes_available), ec);
- b.commit(bytes_transferred);
- total_transferred += bytes_transferred;
- max_size = detail::adapt_completion_condition_result(
- completion_condition(ec, total_transferred));
- bytes_available = read_size_helper(b, max_size);
- }
- return total_transferred;
-}
-
-template <typename SyncRandomAccessReadDevice, typename Allocator>
-inline std::size_t read_at(SyncRandomAccessReadDevice& d,
- uint64_t offset, asio::basic_streambuf<Allocator>& b)
-{
- asio::error_code ec;
- std::size_t bytes_transferred = read_at(
- d, offset, b, transfer_all(), ec);
- asio::detail::throw_error(ec, "read_at");
- return bytes_transferred;
-}
-
-template <typename SyncRandomAccessReadDevice, typename Allocator>
-inline std::size_t read_at(SyncRandomAccessReadDevice& d,
- uint64_t offset, asio::basic_streambuf<Allocator>& b,
- asio::error_code& ec)
-{
- return read_at(d, offset, b, transfer_all(), ec);
-}
-
-template <typename SyncRandomAccessReadDevice, typename Allocator,
- typename CompletionCondition>
-inline std::size_t read_at(SyncRandomAccessReadDevice& d,
- uint64_t offset, asio::basic_streambuf<Allocator>& b,
- CompletionCondition completion_condition)
-{
- asio::error_code ec;
- std::size_t bytes_transferred = read_at(
- d, offset, b, completion_condition, ec);
- asio::detail::throw_error(ec, "read_at");
- return bytes_transferred;
-}
-
-#endif // !defined(ASIO_NO_IOSTREAM)
-#endif // !defined(ASIO_NO_EXTENSIONS)
-
-namespace detail
-{
- template <typename AsyncRandomAccessReadDevice,
- typename MutableBufferSequence, typename MutableBufferIterator,
- typename CompletionCondition, typename ReadHandler>
- class read_at_op
- : detail::base_from_completion_cond<CompletionCondition>
- {
- public:
- read_at_op(AsyncRandomAccessReadDevice& device,
- uint64_t offset, const MutableBufferSequence& buffers,
- CompletionCondition completion_condition, ReadHandler& handler)
- : detail::base_from_completion_cond<
- CompletionCondition>(completion_condition),
- device_(device),
- offset_(offset),
- buffers_(buffers),
- start_(0),
- handler_(ASIO_MOVE_CAST(ReadHandler)(handler))
- {
- }
-
-#if defined(ASIO_HAS_MOVE)
- read_at_op(const read_at_op& other)
- : detail::base_from_completion_cond<CompletionCondition>(other),
- device_(other.device_),
- offset_(other.offset_),
- buffers_(other.buffers_),
- start_(other.start_),
- handler_(other.handler_)
- {
- }
-
- read_at_op(read_at_op&& other)
- : detail::base_from_completion_cond<CompletionCondition>(other),
- device_(other.device_),
- offset_(other.offset_),
- buffers_(other.buffers_),
- start_(other.start_),
- handler_(ASIO_MOVE_CAST(ReadHandler)(other.handler_))
- {
- }
-#endif // defined(ASIO_HAS_MOVE)
-
- void operator()(const asio::error_code& ec,
- std::size_t bytes_transferred, int start = 0)
- {
- std::size_t max_size;
- switch (start_ = start)
- {
- case 1:
- max_size = this->check_for_completion(ec, buffers_.total_consumed());
- do
- {
- device_.async_read_some_at(
- offset_ + buffers_.total_consumed(), buffers_.prepare(max_size),
- ASIO_MOVE_CAST(read_at_op)(*this));
- return; default:
- buffers_.consume(bytes_transferred);
- if ((!ec && bytes_transferred == 0) || buffers_.empty())
- break;
- max_size = this->check_for_completion(ec, buffers_.total_consumed());
- } while (max_size > 0);
-
- handler_(ec, buffers_.total_consumed());
- }
- }
-
- //private:
- AsyncRandomAccessReadDevice& device_;
- uint64_t offset_;
- asio::detail::consuming_buffers<mutable_buffer,
- MutableBufferSequence, MutableBufferIterator> buffers_;
- int start_;
- ReadHandler handler_;
- };
-
- template <typename AsyncRandomAccessReadDevice,
- typename MutableBufferSequence, typename MutableBufferIterator,
- typename CompletionCondition, typename ReadHandler>
- inline void* asio_handler_allocate(std::size_t size,
- read_at_op<AsyncRandomAccessReadDevice, MutableBufferSequence,
- MutableBufferIterator, CompletionCondition, ReadHandler>* this_handler)
- {
- return asio_handler_alloc_helpers::allocate(
- size, this_handler->handler_);
- }
-
- template <typename AsyncRandomAccessReadDevice,
- typename MutableBufferSequence, typename MutableBufferIterator,
- typename CompletionCondition, typename ReadHandler>
- inline void asio_handler_deallocate(void* pointer, std::size_t size,
- read_at_op<AsyncRandomAccessReadDevice, MutableBufferSequence,
- MutableBufferIterator, CompletionCondition, ReadHandler>* this_handler)
- {
- asio_handler_alloc_helpers::deallocate(
- pointer, size, this_handler->handler_);
- }
-
- template <typename AsyncRandomAccessReadDevice,
- typename MutableBufferSequence, typename MutableBufferIterator,
- typename CompletionCondition, typename ReadHandler>
- inline bool asio_handler_is_continuation(
- read_at_op<AsyncRandomAccessReadDevice, MutableBufferSequence,
- MutableBufferIterator, CompletionCondition, ReadHandler>* this_handler)
- {
- return this_handler->start_ == 0 ? true
- : asio_handler_cont_helpers::is_continuation(
- this_handler->handler_);
- }
-
- template <typename Function, typename AsyncRandomAccessReadDevice,
- typename MutableBufferSequence, typename MutableBufferIterator,
- typename CompletionCondition, typename ReadHandler>
- inline void asio_handler_invoke(Function& function,
- read_at_op<AsyncRandomAccessReadDevice, MutableBufferSequence,
- MutableBufferIterator, CompletionCondition, ReadHandler>* this_handler)
- {
- asio_handler_invoke_helpers::invoke(
- function, this_handler->handler_);
- }
-
- template <typename Function, typename AsyncRandomAccessReadDevice,
- typename MutableBufferSequence, typename MutableBufferIterator,
- typename CompletionCondition, typename ReadHandler>
- inline void asio_handler_invoke(const Function& function,
- read_at_op<AsyncRandomAccessReadDevice, MutableBufferSequence,
- MutableBufferIterator, CompletionCondition, ReadHandler>* this_handler)
- {
- asio_handler_invoke_helpers::invoke(
- function, this_handler->handler_);
- }
-
- template <typename AsyncRandomAccessReadDevice,
- typename MutableBufferSequence, typename MutableBufferIterator,
- typename CompletionCondition, typename ReadHandler>
- inline void start_read_at_buffer_sequence_op(AsyncRandomAccessReadDevice& d,
- uint64_t offset, const MutableBufferSequence& buffers,
- const MutableBufferIterator&, CompletionCondition completion_condition,
- ReadHandler& handler)
- {
- detail::read_at_op<AsyncRandomAccessReadDevice, MutableBufferSequence,
- MutableBufferIterator, CompletionCondition, ReadHandler>(
- d, offset, buffers, completion_condition, handler)(
- asio::error_code(), 0, 1);
- }
-} // namespace detail
-
-#if !defined(GENERATING_DOCUMENTATION)
-
-template <typename AsyncRandomAccessReadDevice,
- typename MutableBufferSequence, typename MutableBufferIterator,
- typename CompletionCondition, typename ReadHandler, typename Allocator>
-struct associated_allocator<
- detail::read_at_op<AsyncRandomAccessReadDevice, MutableBufferSequence,
- MutableBufferIterator, CompletionCondition, ReadHandler>,
- Allocator>
-{
- typedef typename associated_allocator<ReadHandler, Allocator>::type type;
-
- static type get(
- const detail::read_at_op<AsyncRandomAccessReadDevice,
- MutableBufferSequence, MutableBufferIterator,
- CompletionCondition, ReadHandler>& h,
- const Allocator& a = Allocator()) ASIO_NOEXCEPT
- {
- return associated_allocator<ReadHandler, Allocator>::get(h.handler_, a);
- }
-};
-
-template <typename AsyncRandomAccessReadDevice,
- typename MutableBufferSequence, typename MutableBufferIterator,
- typename CompletionCondition, typename ReadHandler, typename Executor>
-struct associated_executor<
- detail::read_at_op<AsyncRandomAccessReadDevice, MutableBufferSequence,
- MutableBufferIterator, CompletionCondition, ReadHandler>,
- Executor>
-{
- typedef typename associated_executor<ReadHandler, Executor>::type type;
-
- static type get(
- const detail::read_at_op<AsyncRandomAccessReadDevice,
- MutableBufferSequence, MutableBufferIterator,
- CompletionCondition, ReadHandler>& h,
- const Executor& ex = Executor()) ASIO_NOEXCEPT
- {
- return associated_executor<ReadHandler, Executor>::get(h.handler_, ex);
- }
-};
-
-#endif // !defined(GENERATING_DOCUMENTATION)
-
-template <typename AsyncRandomAccessReadDevice, typename MutableBufferSequence,
- typename CompletionCondition, typename ReadHandler>
-inline ASIO_INITFN_RESULT_TYPE(ReadHandler,
- void (asio::error_code, std::size_t))
-async_read_at(AsyncRandomAccessReadDevice& d,
- uint64_t offset, const MutableBufferSequence& buffers,
- CompletionCondition completion_condition,
- ASIO_MOVE_ARG(ReadHandler) handler)
-{
- // If you get an error on the following line it means that your handler does
- // not meet the documented type requirements for a ReadHandler.
- ASIO_READ_HANDLER_CHECK(ReadHandler, handler) type_check;
-
- async_completion<ReadHandler,
- void (asio::error_code, std::size_t)> init(handler);
-
- detail::start_read_at_buffer_sequence_op(d, offset, buffers,
- asio::buffer_sequence_begin(buffers), completion_condition,
- init.completion_handler);
-
- return init.result.get();
-}
-
-template <typename AsyncRandomAccessReadDevice, typename MutableBufferSequence,
- typename ReadHandler>
-inline ASIO_INITFN_RESULT_TYPE(ReadHandler,
- void (asio::error_code, std::size_t))
-async_read_at(AsyncRandomAccessReadDevice& d,
- uint64_t offset, const MutableBufferSequence& buffers,
- ASIO_MOVE_ARG(ReadHandler) handler)
-{
- // If you get an error on the following line it means that your handler does
- // not meet the documented type requirements for a ReadHandler.
- ASIO_READ_HANDLER_CHECK(ReadHandler, handler) type_check;
-
- async_completion<ReadHandler,
- void (asio::error_code, std::size_t)> init(handler);
-
- detail::start_read_at_buffer_sequence_op(d, offset, buffers,
- asio::buffer_sequence_begin(buffers), transfer_all(),
- init.completion_handler);
-
- return init.result.get();
-}
-
-#if !defined(ASIO_NO_EXTENSIONS)
-#if !defined(ASIO_NO_IOSTREAM)
-
-namespace detail
-{
- template <typename AsyncRandomAccessReadDevice, typename Allocator,
- typename CompletionCondition, typename ReadHandler>
- class read_at_streambuf_op
- : detail::base_from_completion_cond<CompletionCondition>
- {
- public:
- read_at_streambuf_op(AsyncRandomAccessReadDevice& device,
- uint64_t offset, basic_streambuf<Allocator>& streambuf,
- CompletionCondition completion_condition, ReadHandler& handler)
- : detail::base_from_completion_cond<
- CompletionCondition>(completion_condition),
- device_(device),
- offset_(offset),
- streambuf_(streambuf),
- start_(0),
- total_transferred_(0),
- handler_(ASIO_MOVE_CAST(ReadHandler)(handler))
- {
- }
-
-#if defined(ASIO_HAS_MOVE)
- read_at_streambuf_op(const read_at_streambuf_op& other)
- : detail::base_from_completion_cond<CompletionCondition>(other),
- device_(other.device_),
- offset_(other.offset_),
- streambuf_(other.streambuf_),
- start_(other.start_),
- total_transferred_(other.total_transferred_),
- handler_(other.handler_)
- {
- }
-
- read_at_streambuf_op(read_at_streambuf_op&& other)
- : detail::base_from_completion_cond<CompletionCondition>(other),
- device_(other.device_),
- offset_(other.offset_),
- streambuf_(other.streambuf_),
- start_(other.start_),
- total_transferred_(other.total_transferred_),
- handler_(ASIO_MOVE_CAST(ReadHandler)(other.handler_))
- {
- }
-#endif // defined(ASIO_HAS_MOVE)
-
- void operator()(const asio::error_code& ec,
- std::size_t bytes_transferred, int start = 0)
- {
- std::size_t max_size, bytes_available;
- switch (start_ = start)
- {
- case 1:
- max_size = this->check_for_completion(ec, total_transferred_);
- bytes_available = read_size_helper(streambuf_, max_size);
- for (;;)
- {
- device_.async_read_some_at(offset_ + total_transferred_,
- streambuf_.prepare(bytes_available),
- ASIO_MOVE_CAST(read_at_streambuf_op)(*this));
- return; default:
- total_transferred_ += bytes_transferred;
- streambuf_.commit(bytes_transferred);
- max_size = this->check_for_completion(ec, total_transferred_);
- bytes_available = read_size_helper(streambuf_, max_size);
- if ((!ec && bytes_transferred == 0) || bytes_available == 0)
- break;
- }
-
- handler_(ec, static_cast<const std::size_t&>(total_transferred_));
- }
- }
-
- //private:
- AsyncRandomAccessReadDevice& device_;
- uint64_t offset_;
- asio::basic_streambuf<Allocator>& streambuf_;
- int start_;
- std::size_t total_transferred_;
- ReadHandler handler_;
- };
-
- template <typename AsyncRandomAccessReadDevice, typename Allocator,
- typename CompletionCondition, typename ReadHandler>
- inline void* asio_handler_allocate(std::size_t size,
- read_at_streambuf_op<AsyncRandomAccessReadDevice, Allocator,
- CompletionCondition, ReadHandler>* this_handler)
- {
- return asio_handler_alloc_helpers::allocate(
- size, this_handler->handler_);
- }
-
- template <typename AsyncRandomAccessReadDevice, typename Allocator,
- typename CompletionCondition, typename ReadHandler>
- inline void asio_handler_deallocate(void* pointer, std::size_t size,
- read_at_streambuf_op<AsyncRandomAccessReadDevice, Allocator,
- CompletionCondition, ReadHandler>* this_handler)
- {
- asio_handler_alloc_helpers::deallocate(
- pointer, size, this_handler->handler_);
- }
-
- template <typename AsyncRandomAccessReadDevice, typename Allocator,
- typename CompletionCondition, typename ReadHandler>
- inline bool asio_handler_is_continuation(
- read_at_streambuf_op<AsyncRandomAccessReadDevice, Allocator,
- CompletionCondition, ReadHandler>* this_handler)
- {
- return this_handler->start_ == 0 ? true
- : asio_handler_cont_helpers::is_continuation(
- this_handler->handler_);
- }
-
- template <typename Function, typename AsyncRandomAccessReadDevice,
- typename Allocator, typename CompletionCondition, typename ReadHandler>
- inline void asio_handler_invoke(Function& function,
- read_at_streambuf_op<AsyncRandomAccessReadDevice, Allocator,
- CompletionCondition, ReadHandler>* this_handler)
- {
- asio_handler_invoke_helpers::invoke(
- function, this_handler->handler_);
- }
-
- template <typename Function, typename AsyncRandomAccessReadDevice,
- typename Allocator, typename CompletionCondition, typename ReadHandler>
- inline void asio_handler_invoke(const Function& function,
- read_at_streambuf_op<AsyncRandomAccessReadDevice, Allocator,
- CompletionCondition, ReadHandler>* this_handler)
- {
- asio_handler_invoke_helpers::invoke(
- function, this_handler->handler_);
- }
-} // namespace detail
-
-#if !defined(GENERATING_DOCUMENTATION)
-
-template <typename AsyncRandomAccessReadDevice, typename Allocator,
- typename CompletionCondition, typename ReadHandler, typename Allocator1>
-struct associated_allocator<
- detail::read_at_streambuf_op<AsyncRandomAccessReadDevice,
- Allocator, CompletionCondition, ReadHandler>,
- Allocator1>
-{
- typedef typename associated_allocator<ReadHandler, Allocator1>::type type;
-
- static type get(
- const detail::read_at_streambuf_op<AsyncRandomAccessReadDevice,
- Allocator, CompletionCondition, ReadHandler>& h,
- const Allocator1& a = Allocator1()) ASIO_NOEXCEPT
- {
- return associated_allocator<ReadHandler, Allocator1>::get(h.handler_, a);
- }
-};
-
-template <typename AsyncRandomAccessReadDevice, typename Executor,
- typename CompletionCondition, typename ReadHandler, typename Executor1>
-struct associated_executor<
- detail::read_at_streambuf_op<AsyncRandomAccessReadDevice,
- Executor, CompletionCondition, ReadHandler>,
- Executor1>
-{
- typedef typename associated_executor<ReadHandler, Executor1>::type type;
-
- static type get(
- const detail::read_at_streambuf_op<AsyncRandomAccessReadDevice,
- Executor, CompletionCondition, ReadHandler>& h,
- const Executor1& ex = Executor1()) ASIO_NOEXCEPT
- {
- return associated_executor<ReadHandler, Executor1>::get(h.handler_, ex);
- }
-};
-
-#endif // !defined(GENERATING_DOCUMENTATION)
-
-template <typename AsyncRandomAccessReadDevice, typename Allocator,
- typename CompletionCondition, typename ReadHandler>
-inline ASIO_INITFN_RESULT_TYPE(ReadHandler,
- void (asio::error_code, std::size_t))
-async_read_at(AsyncRandomAccessReadDevice& d,
- uint64_t offset, asio::basic_streambuf<Allocator>& b,
- CompletionCondition completion_condition,
- ASIO_MOVE_ARG(ReadHandler) handler)
-{
- // If you get an error on the following line it means that your handler does
- // not meet the documented type requirements for a ReadHandler.
- ASIO_READ_HANDLER_CHECK(ReadHandler, handler) type_check;
-
- async_completion<ReadHandler,
- void (asio::error_code, std::size_t)> init(handler);
-
- detail::read_at_streambuf_op<AsyncRandomAccessReadDevice, Allocator,
- CompletionCondition, ASIO_HANDLER_TYPE(ReadHandler,
- void (asio::error_code, std::size_t))>(
- d, offset, b, completion_condition, init.completion_handler)(
- asio::error_code(), 0, 1);
-
- return init.result.get();
-}
-
-template <typename AsyncRandomAccessReadDevice, typename Allocator,
- typename ReadHandler>
-inline ASIO_INITFN_RESULT_TYPE(ReadHandler,
- void (asio::error_code, std::size_t))
-async_read_at(AsyncRandomAccessReadDevice& d,
- uint64_t offset, asio::basic_streambuf<Allocator>& b,
- ASIO_MOVE_ARG(ReadHandler) handler)
-{
- // If you get an error on the following line it means that your handler does
- // not meet the documented type requirements for a ReadHandler.
- ASIO_READ_HANDLER_CHECK(ReadHandler, handler) type_check;
-
- async_completion<ReadHandler,
- void (asio::error_code, std::size_t)> init(handler);
-
- detail::read_at_streambuf_op<AsyncRandomAccessReadDevice, Allocator,
- detail::transfer_all_t, ASIO_HANDLER_TYPE(ReadHandler,
- void (asio::error_code, std::size_t))>(
- d, offset, b, transfer_all(), init.completion_handler)(
- asio::error_code(), 0, 1);
-
- return init.result.get();
-}
-
-#endif // !defined(ASIO_NO_IOSTREAM)
-#endif // !defined(ASIO_NO_EXTENSIONS)
-
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // ASIO_IMPL_READ_AT_HPP