diff options
Diffstat (limited to 'src/third_party/boost-1.69.0/boost/asio/impl/read.hpp')
| -rw-r--r-- | src/third_party/boost-1.69.0/boost/asio/impl/read.hpp | 717 |
1 files changed, 717 insertions, 0 deletions
diff --git a/src/third_party/boost-1.69.0/boost/asio/impl/read.hpp b/src/third_party/boost-1.69.0/boost/asio/impl/read.hpp new file mode 100644 index 00000000000..9fbddc964e9 --- /dev/null +++ b/src/third_party/boost-1.69.0/boost/asio/impl/read.hpp @@ -0,0 +1,717 @@ +// +// impl/read.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 BOOST_ASIO_IMPL_READ_HPP +#define BOOST_ASIO_IMPL_READ_HPP + +#if defined(_MSC_VER) && (_MSC_VER >= 1200) +# pragma once +#endif // defined(_MSC_VER) && (_MSC_VER >= 1200) + +#include <algorithm> +#include <boost/asio/associated_allocator.hpp> +#include <boost/asio/associated_executor.hpp> +#include <boost/asio/buffer.hpp> +#include <boost/asio/completion_condition.hpp> +#include <boost/asio/detail/array_fwd.hpp> +#include <boost/asio/detail/base_from_completion_cond.hpp> +#include <boost/asio/detail/bind_handler.hpp> +#include <boost/asio/detail/consuming_buffers.hpp> +#include <boost/asio/detail/dependent_type.hpp> +#include <boost/asio/detail/handler_alloc_helpers.hpp> +#include <boost/asio/detail/handler_cont_helpers.hpp> +#include <boost/asio/detail/handler_invoke_helpers.hpp> +#include <boost/asio/detail/handler_type_requirements.hpp> +#include <boost/asio/detail/throw_error.hpp> +#include <boost/asio/error.hpp> + +#include <boost/asio/detail/push_options.hpp> + +namespace boost { +namespace asio { + +namespace detail +{ + template <typename SyncReadStream, typename MutableBufferSequence, + typename MutableBufferIterator, typename CompletionCondition> + std::size_t read_buffer_sequence(SyncReadStream& s, + const MutableBufferSequence& buffers, const MutableBufferIterator&, + CompletionCondition completion_condition, boost::system::error_code& ec) + { + ec = boost::system::error_code(); + boost::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(s.read_some(tmp.prepare(max_size), ec)); + else + break; + } + return tmp.total_consumed();; + } +} // namespace detail + +template <typename SyncReadStream, typename MutableBufferSequence, + typename CompletionCondition> +std::size_t read(SyncReadStream& s, const MutableBufferSequence& buffers, + CompletionCondition completion_condition, boost::system::error_code& ec, + typename enable_if< + is_mutable_buffer_sequence<MutableBufferSequence>::value + >::type*) +{ + return detail::read_buffer_sequence(s, buffers, + boost::asio::buffer_sequence_begin(buffers), completion_condition, ec); +} + +template <typename SyncReadStream, typename MutableBufferSequence> +inline std::size_t read(SyncReadStream& s, const MutableBufferSequence& buffers, + typename enable_if< + is_mutable_buffer_sequence<MutableBufferSequence>::value + >::type*) +{ + boost::system::error_code ec; + std::size_t bytes_transferred = read(s, buffers, transfer_all(), ec); + boost::asio::detail::throw_error(ec, "read"); + return bytes_transferred; +} + +template <typename SyncReadStream, typename MutableBufferSequence> +inline std::size_t read(SyncReadStream& s, const MutableBufferSequence& buffers, + boost::system::error_code& ec, + typename enable_if< + is_mutable_buffer_sequence<MutableBufferSequence>::value + >::type*) +{ + return read(s, buffers, transfer_all(), ec); +} + +template <typename SyncReadStream, typename MutableBufferSequence, + typename CompletionCondition> +inline std::size_t read(SyncReadStream& s, const MutableBufferSequence& buffers, + CompletionCondition completion_condition, + typename enable_if< + is_mutable_buffer_sequence<MutableBufferSequence>::value + >::type*) +{ + boost::system::error_code ec; + std::size_t bytes_transferred = read(s, buffers, completion_condition, ec); + boost::asio::detail::throw_error(ec, "read"); + return bytes_transferred; +} + +template <typename SyncReadStream, typename DynamicBuffer, + typename CompletionCondition> +std::size_t read(SyncReadStream& s, + BOOST_ASIO_MOVE_ARG(DynamicBuffer) buffers, + CompletionCondition completion_condition, boost::system::error_code& ec, + typename enable_if< + is_dynamic_buffer<typename decay<DynamicBuffer>::type>::value + >::type*) +{ + typename decay<DynamicBuffer>::type b( + BOOST_ASIO_MOVE_CAST(DynamicBuffer)(buffers)); + + ec = boost::system::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 = std::min<std::size_t>( + std::max<std::size_t>(512, b.capacity() - b.size()), + std::min<std::size_t>(max_size, b.max_size() - b.size())); + while (bytes_available > 0) + { + std::size_t bytes_transferred = s.read_some(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 = std::min<std::size_t>( + std::max<std::size_t>(512, b.capacity() - b.size()), + std::min<std::size_t>(max_size, b.max_size() - b.size())); + } + return total_transferred; +} + +template <typename SyncReadStream, typename DynamicBuffer> +inline std::size_t read(SyncReadStream& s, + BOOST_ASIO_MOVE_ARG(DynamicBuffer) buffers, + typename enable_if< + is_dynamic_buffer<typename decay<DynamicBuffer>::type>::value + >::type*) +{ + boost::system::error_code ec; + std::size_t bytes_transferred = read(s, + BOOST_ASIO_MOVE_CAST(DynamicBuffer)(buffers), transfer_all(), ec); + boost::asio::detail::throw_error(ec, "read"); + return bytes_transferred; +} + +template <typename SyncReadStream, typename DynamicBuffer> +inline std::size_t read(SyncReadStream& s, + BOOST_ASIO_MOVE_ARG(DynamicBuffer) buffers, + boost::system::error_code& ec, + typename enable_if< + is_dynamic_buffer<typename decay<DynamicBuffer>::type>::value + >::type*) +{ + return read(s, BOOST_ASIO_MOVE_CAST(DynamicBuffer)(buffers), + transfer_all(), ec); +} + +template <typename SyncReadStream, typename DynamicBuffer, + typename CompletionCondition> +inline std::size_t read(SyncReadStream& s, + BOOST_ASIO_MOVE_ARG(DynamicBuffer) buffers, + CompletionCondition completion_condition, + typename enable_if< + is_dynamic_buffer<typename decay<DynamicBuffer>::type>::value + >::type*) +{ + boost::system::error_code ec; + std::size_t bytes_transferred = read(s, + BOOST_ASIO_MOVE_CAST(DynamicBuffer)(buffers), + completion_condition, ec); + boost::asio::detail::throw_error(ec, "read"); + return bytes_transferred; +} + +#if !defined(BOOST_ASIO_NO_EXTENSIONS) +#if !defined(BOOST_ASIO_NO_IOSTREAM) + +template <typename SyncReadStream, typename Allocator, + typename CompletionCondition> +inline std::size_t read(SyncReadStream& s, + boost::asio::basic_streambuf<Allocator>& b, + CompletionCondition completion_condition, boost::system::error_code& ec) +{ + return read(s, basic_streambuf_ref<Allocator>(b), completion_condition, ec); +} + +template <typename SyncReadStream, typename Allocator> +inline std::size_t read(SyncReadStream& s, + boost::asio::basic_streambuf<Allocator>& b) +{ + return read(s, basic_streambuf_ref<Allocator>(b)); +} + +template <typename SyncReadStream, typename Allocator> +inline std::size_t read(SyncReadStream& s, + boost::asio::basic_streambuf<Allocator>& b, + boost::system::error_code& ec) +{ + return read(s, basic_streambuf_ref<Allocator>(b), ec); +} + +template <typename SyncReadStream, typename Allocator, + typename CompletionCondition> +inline std::size_t read(SyncReadStream& s, + boost::asio::basic_streambuf<Allocator>& b, + CompletionCondition completion_condition) +{ + return read(s, basic_streambuf_ref<Allocator>(b), completion_condition); +} + +#endif // !defined(BOOST_ASIO_NO_IOSTREAM) +#endif // !defined(BOOST_ASIO_NO_EXTENSIONS) + +namespace detail +{ + template <typename AsyncReadStream, typename MutableBufferSequence, + typename MutableBufferIterator, typename CompletionCondition, + typename ReadHandler> + class read_op + : detail::base_from_completion_cond<CompletionCondition> + { + public: + read_op(AsyncReadStream& stream, const MutableBufferSequence& buffers, + CompletionCondition completion_condition, ReadHandler& handler) + : detail::base_from_completion_cond< + CompletionCondition>(completion_condition), + stream_(stream), + buffers_(buffers), + start_(0), + handler_(BOOST_ASIO_MOVE_CAST(ReadHandler)(handler)) + { + } + +#if defined(BOOST_ASIO_HAS_MOVE) + read_op(const read_op& other) + : detail::base_from_completion_cond<CompletionCondition>(other), + stream_(other.stream_), + buffers_(other.buffers_), + start_(other.start_), + handler_(other.handler_) + { + } + + read_op(read_op&& other) + : detail::base_from_completion_cond<CompletionCondition>(other), + stream_(other.stream_), + buffers_(other.buffers_), + start_(other.start_), + handler_(BOOST_ASIO_MOVE_CAST(ReadHandler)(other.handler_)) + { + } +#endif // defined(BOOST_ASIO_HAS_MOVE) + + void operator()(const boost::system::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 + { + stream_.async_read_some(buffers_.prepare(max_size), + BOOST_ASIO_MOVE_CAST(read_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: + AsyncReadStream& stream_; + boost::asio::detail::consuming_buffers<mutable_buffer, + MutableBufferSequence, MutableBufferIterator> buffers_; + int start_; + ReadHandler handler_; + }; + + template <typename AsyncReadStream, typename MutableBufferSequence, + typename MutableBufferIterator, typename CompletionCondition, + typename ReadHandler> + inline void* asio_handler_allocate(std::size_t size, + read_op<AsyncReadStream, MutableBufferSequence, MutableBufferIterator, + CompletionCondition, ReadHandler>* this_handler) + { + return boost_asio_handler_alloc_helpers::allocate( + size, this_handler->handler_); + } + + template <typename AsyncReadStream, typename MutableBufferSequence, + typename MutableBufferIterator, typename CompletionCondition, + typename ReadHandler> + inline void asio_handler_deallocate(void* pointer, std::size_t size, + read_op<AsyncReadStream, MutableBufferSequence, MutableBufferIterator, + CompletionCondition, ReadHandler>* this_handler) + { + boost_asio_handler_alloc_helpers::deallocate( + pointer, size, this_handler->handler_); + } + + template <typename AsyncReadStream, typename MutableBufferSequence, + typename MutableBufferIterator, typename CompletionCondition, + typename ReadHandler> + inline bool asio_handler_is_continuation( + read_op<AsyncReadStream, MutableBufferSequence, MutableBufferIterator, + CompletionCondition, ReadHandler>* this_handler) + { + return this_handler->start_ == 0 ? true + : boost_asio_handler_cont_helpers::is_continuation( + this_handler->handler_); + } + + template <typename Function, typename AsyncReadStream, + typename MutableBufferSequence, typename MutableBufferIterator, + typename CompletionCondition, typename ReadHandler> + inline void asio_handler_invoke(Function& function, + read_op<AsyncReadStream, MutableBufferSequence, MutableBufferIterator, + CompletionCondition, ReadHandler>* this_handler) + { + boost_asio_handler_invoke_helpers::invoke( + function, this_handler->handler_); + } + + template <typename Function, typename AsyncReadStream, + typename MutableBufferSequence, typename MutableBufferIterator, + typename CompletionCondition, typename ReadHandler> + inline void asio_handler_invoke(const Function& function, + read_op<AsyncReadStream, MutableBufferSequence, MutableBufferIterator, + CompletionCondition, ReadHandler>* this_handler) + { + boost_asio_handler_invoke_helpers::invoke( + function, this_handler->handler_); + } + + template <typename AsyncReadStream, typename MutableBufferSequence, + typename MutableBufferIterator, typename CompletionCondition, + typename ReadHandler> + inline void start_read_buffer_sequence_op(AsyncReadStream& stream, + const MutableBufferSequence& buffers, const MutableBufferIterator&, + CompletionCondition completion_condition, ReadHandler& handler) + { + detail::read_op<AsyncReadStream, MutableBufferSequence, + MutableBufferIterator, CompletionCondition, ReadHandler>( + stream, buffers, completion_condition, handler)( + boost::system::error_code(), 0, 1); + } +} // namespace detail + +#if !defined(GENERATING_DOCUMENTATION) + +template <typename AsyncReadStream, typename MutableBufferSequence, + typename MutableBufferIterator, typename CompletionCondition, + typename ReadHandler, typename Allocator> +struct associated_allocator< + detail::read_op<AsyncReadStream, MutableBufferSequence, + MutableBufferIterator, CompletionCondition, ReadHandler>, + Allocator> +{ + typedef typename associated_allocator<ReadHandler, Allocator>::type type; + + static type get( + const detail::read_op<AsyncReadStream, MutableBufferSequence, + MutableBufferIterator, CompletionCondition, ReadHandler>& h, + const Allocator& a = Allocator()) BOOST_ASIO_NOEXCEPT + { + return associated_allocator<ReadHandler, Allocator>::get(h.handler_, a); + } +}; + +template <typename AsyncReadStream, typename MutableBufferSequence, + typename MutableBufferIterator, typename CompletionCondition, + typename ReadHandler, typename Executor> +struct associated_executor< + detail::read_op<AsyncReadStream, MutableBufferSequence, + MutableBufferIterator, CompletionCondition, ReadHandler>, + Executor> +{ + typedef typename associated_executor<ReadHandler, Executor>::type type; + + static type get( + const detail::read_op<AsyncReadStream, MutableBufferSequence, + MutableBufferIterator, CompletionCondition, ReadHandler>& h, + const Executor& ex = Executor()) BOOST_ASIO_NOEXCEPT + { + return associated_executor<ReadHandler, Executor>::get(h.handler_, ex); + } +}; + +#endif // !defined(GENERATING_DOCUMENTATION) + +template <typename AsyncReadStream, typename MutableBufferSequence, + typename CompletionCondition, typename ReadHandler> +inline BOOST_ASIO_INITFN_RESULT_TYPE(ReadHandler, + void (boost::system::error_code, std::size_t)) +async_read(AsyncReadStream& s, const MutableBufferSequence& buffers, + CompletionCondition completion_condition, + BOOST_ASIO_MOVE_ARG(ReadHandler) handler, + typename enable_if< + is_mutable_buffer_sequence<MutableBufferSequence>::value + >::type*) +{ + // If you get an error on the following line it means that your handler does + // not meet the documented type requirements for a ReadHandler. + BOOST_ASIO_READ_HANDLER_CHECK(ReadHandler, handler) type_check; + + async_completion<ReadHandler, + void (boost::system::error_code, std::size_t)> init(handler); + + detail::start_read_buffer_sequence_op(s, buffers, + boost::asio::buffer_sequence_begin(buffers), completion_condition, + init.completion_handler); + + return init.result.get(); +} + +template <typename AsyncReadStream, typename MutableBufferSequence, + typename ReadHandler> +inline BOOST_ASIO_INITFN_RESULT_TYPE(ReadHandler, + void (boost::system::error_code, std::size_t)) +async_read(AsyncReadStream& s, const MutableBufferSequence& buffers, + BOOST_ASIO_MOVE_ARG(ReadHandler) handler, + typename enable_if< + is_mutable_buffer_sequence<MutableBufferSequence>::value + >::type*) +{ + // If you get an error on the following line it means that your handler does + // not meet the documented type requirements for a ReadHandler. + BOOST_ASIO_READ_HANDLER_CHECK(ReadHandler, handler) type_check; + + async_completion<ReadHandler, + void (boost::system::error_code, std::size_t)> init(handler); + + detail::start_read_buffer_sequence_op(s, buffers, + boost::asio::buffer_sequence_begin(buffers), transfer_all(), + init.completion_handler); + + return init.result.get(); +} + +namespace detail +{ + template <typename AsyncReadStream, typename DynamicBuffer, + typename CompletionCondition, typename ReadHandler> + class read_dynbuf_op + : detail::base_from_completion_cond<CompletionCondition> + { + public: + template <typename BufferSequence> + read_dynbuf_op(AsyncReadStream& stream, + BOOST_ASIO_MOVE_ARG(BufferSequence) buffers, + CompletionCondition completion_condition, ReadHandler& handler) + : detail::base_from_completion_cond< + CompletionCondition>(completion_condition), + stream_(stream), + buffers_(BOOST_ASIO_MOVE_CAST(BufferSequence)(buffers)), + start_(0), + total_transferred_(0), + handler_(BOOST_ASIO_MOVE_CAST(ReadHandler)(handler)) + { + } + +#if defined(BOOST_ASIO_HAS_MOVE) + read_dynbuf_op(const read_dynbuf_op& other) + : detail::base_from_completion_cond<CompletionCondition>(other), + stream_(other.stream_), + buffers_(other.buffers_), + start_(other.start_), + total_transferred_(other.total_transferred_), + handler_(other.handler_) + { + } + + read_dynbuf_op(read_dynbuf_op&& other) + : detail::base_from_completion_cond<CompletionCondition>(other), + stream_(other.stream_), + buffers_(BOOST_ASIO_MOVE_CAST(DynamicBuffer)(other.buffers_)), + start_(other.start_), + total_transferred_(other.total_transferred_), + handler_(BOOST_ASIO_MOVE_CAST(ReadHandler)(other.handler_)) + { + } +#endif // defined(BOOST_ASIO_HAS_MOVE) + + void operator()(const boost::system::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 = std::min<std::size_t>( + std::max<std::size_t>(512, + buffers_.capacity() - buffers_.size()), + std::min<std::size_t>(max_size, + buffers_.max_size() - buffers_.size())); + for (;;) + { + stream_.async_read_some(buffers_.prepare(bytes_available), + BOOST_ASIO_MOVE_CAST(read_dynbuf_op)(*this)); + return; default: + total_transferred_ += bytes_transferred; + buffers_.commit(bytes_transferred); + max_size = this->check_for_completion(ec, total_transferred_); + bytes_available = std::min<std::size_t>( + std::max<std::size_t>(512, + buffers_.capacity() - buffers_.size()), + std::min<std::size_t>(max_size, + buffers_.max_size() - buffers_.size())); + if ((!ec && bytes_transferred == 0) || bytes_available == 0) + break; + } + + handler_(ec, static_cast<const std::size_t&>(total_transferred_)); + } + } + + //private: + AsyncReadStream& stream_; + DynamicBuffer buffers_; + int start_; + std::size_t total_transferred_; + ReadHandler handler_; + }; + + template <typename AsyncReadStream, typename DynamicBuffer, + typename CompletionCondition, typename ReadHandler> + inline void* asio_handler_allocate(std::size_t size, + read_dynbuf_op<AsyncReadStream, DynamicBuffer, + CompletionCondition, ReadHandler>* this_handler) + { + return boost_asio_handler_alloc_helpers::allocate( + size, this_handler->handler_); + } + + template <typename AsyncReadStream, typename DynamicBuffer, + typename CompletionCondition, typename ReadHandler> + inline void asio_handler_deallocate(void* pointer, std::size_t size, + read_dynbuf_op<AsyncReadStream, DynamicBuffer, + CompletionCondition, ReadHandler>* this_handler) + { + boost_asio_handler_alloc_helpers::deallocate( + pointer, size, this_handler->handler_); + } + + template <typename AsyncReadStream, typename DynamicBuffer, + typename CompletionCondition, typename ReadHandler> + inline bool asio_handler_is_continuation( + read_dynbuf_op<AsyncReadStream, DynamicBuffer, + CompletionCondition, ReadHandler>* this_handler) + { + return this_handler->start_ == 0 ? true + : boost_asio_handler_cont_helpers::is_continuation( + this_handler->handler_); + } + + template <typename Function, typename AsyncReadStream, + typename DynamicBuffer, typename CompletionCondition, + typename ReadHandler> + inline void asio_handler_invoke(Function& function, + read_dynbuf_op<AsyncReadStream, DynamicBuffer, + CompletionCondition, ReadHandler>* this_handler) + { + boost_asio_handler_invoke_helpers::invoke( + function, this_handler->handler_); + } + + template <typename Function, typename AsyncReadStream, + typename DynamicBuffer, typename CompletionCondition, + typename ReadHandler> + inline void asio_handler_invoke(const Function& function, + read_dynbuf_op<AsyncReadStream, DynamicBuffer, + CompletionCondition, ReadHandler>* this_handler) + { + boost_asio_handler_invoke_helpers::invoke( + function, this_handler->handler_); + } +} // namespace detail + +#if !defined(GENERATING_DOCUMENTATION) + +template <typename AsyncReadStream, typename DynamicBuffer, + typename CompletionCondition, typename ReadHandler, typename Allocator> +struct associated_allocator< + detail::read_dynbuf_op<AsyncReadStream, + DynamicBuffer, CompletionCondition, ReadHandler>, + Allocator> +{ + typedef typename associated_allocator<ReadHandler, Allocator>::type type; + + static type get( + const detail::read_dynbuf_op<AsyncReadStream, + DynamicBuffer, CompletionCondition, ReadHandler>& h, + const Allocator& a = Allocator()) BOOST_ASIO_NOEXCEPT + { + return associated_allocator<ReadHandler, Allocator>::get(h.handler_, a); + } +}; + +template <typename AsyncReadStream, typename DynamicBuffer, + typename CompletionCondition, typename ReadHandler, typename Executor> +struct associated_executor< + detail::read_dynbuf_op<AsyncReadStream, + DynamicBuffer, CompletionCondition, ReadHandler>, + Executor> +{ + typedef typename associated_executor<ReadHandler, Executor>::type type; + + static type get( + const detail::read_dynbuf_op<AsyncReadStream, + DynamicBuffer, CompletionCondition, ReadHandler>& h, + const Executor& ex = Executor()) BOOST_ASIO_NOEXCEPT + { + return associated_executor<ReadHandler, Executor>::get(h.handler_, ex); + } +}; + +#endif // !defined(GENERATING_DOCUMENTATION) + +template <typename AsyncReadStream, + typename DynamicBuffer, typename ReadHandler> +inline BOOST_ASIO_INITFN_RESULT_TYPE(ReadHandler, + void (boost::system::error_code, std::size_t)) +async_read(AsyncReadStream& s, + BOOST_ASIO_MOVE_ARG(DynamicBuffer) buffers, + BOOST_ASIO_MOVE_ARG(ReadHandler) handler, + typename enable_if< + is_dynamic_buffer<typename decay<DynamicBuffer>::type>::value + >::type*) +{ + return async_read(s, + BOOST_ASIO_MOVE_CAST(DynamicBuffer)(buffers), + transfer_all(), BOOST_ASIO_MOVE_CAST(ReadHandler)(handler)); +} + +template <typename AsyncReadStream, typename DynamicBuffer, + typename CompletionCondition, typename ReadHandler> +inline BOOST_ASIO_INITFN_RESULT_TYPE(ReadHandler, + void (boost::system::error_code, std::size_t)) +async_read(AsyncReadStream& s, + BOOST_ASIO_MOVE_ARG(DynamicBuffer) buffers, + CompletionCondition completion_condition, + BOOST_ASIO_MOVE_ARG(ReadHandler) handler, + typename enable_if< + is_dynamic_buffer<typename decay<DynamicBuffer>::type>::value + >::type*) +{ + // If you get an error on the following line it means that your handler does + // not meet the documented type requirements for a ReadHandler. + BOOST_ASIO_READ_HANDLER_CHECK(ReadHandler, handler) type_check; + + async_completion<ReadHandler, + void (boost::system::error_code, std::size_t)> init(handler); + + detail::read_dynbuf_op<AsyncReadStream, + typename decay<DynamicBuffer>::type, + CompletionCondition, BOOST_ASIO_HANDLER_TYPE( + ReadHandler, void (boost::system::error_code, std::size_t))>( + s, BOOST_ASIO_MOVE_CAST(DynamicBuffer)(buffers), + completion_condition, init.completion_handler)( + boost::system::error_code(), 0, 1); + + return init.result.get(); +} + +#if !defined(BOOST_ASIO_NO_EXTENSIONS) +#if !defined(BOOST_ASIO_NO_IOSTREAM) + +template <typename AsyncReadStream, typename Allocator, typename ReadHandler> +inline BOOST_ASIO_INITFN_RESULT_TYPE(ReadHandler, + void (boost::system::error_code, std::size_t)) +async_read(AsyncReadStream& s, basic_streambuf<Allocator>& b, + BOOST_ASIO_MOVE_ARG(ReadHandler) handler) +{ + return async_read(s, basic_streambuf_ref<Allocator>(b), + BOOST_ASIO_MOVE_CAST(ReadHandler)(handler)); +} + +template <typename AsyncReadStream, typename Allocator, + typename CompletionCondition, typename ReadHandler> +inline BOOST_ASIO_INITFN_RESULT_TYPE(ReadHandler, + void (boost::system::error_code, std::size_t)) +async_read(AsyncReadStream& s, basic_streambuf<Allocator>& b, + CompletionCondition completion_condition, + BOOST_ASIO_MOVE_ARG(ReadHandler) handler) +{ + return async_read(s, basic_streambuf_ref<Allocator>(b), + completion_condition, BOOST_ASIO_MOVE_CAST(ReadHandler)(handler)); +} + +#endif // !defined(BOOST_ASIO_NO_IOSTREAM) +#endif // !defined(BOOST_ASIO_NO_EXTENSIONS) + +} // namespace asio +} // namespace boost + +#include <boost/asio/detail/pop_options.hpp> + +#endif // BOOST_ASIO_IMPL_READ_HPP |