diff options
Diffstat (limited to '3rdparty/asio/include/asio/impl/read.hpp')
-rw-r--r-- | 3rdparty/asio/include/asio/impl/read.hpp | 928 |
1 files changed, 706 insertions, 222 deletions
diff --git a/3rdparty/asio/include/asio/impl/read.hpp b/3rdparty/asio/include/asio/impl/read.hpp index 385a552ed8e..fb176d4343c 100644 --- a/3rdparty/asio/include/asio/impl/read.hpp +++ b/3rdparty/asio/include/asio/impl/read.hpp @@ -2,7 +2,7 @@ // impl/read.hpp // ~~~~~~~~~~~~~ // -// Copyright (c) 2003-2016 Christopher M. Kohlhoff (chris at kohlhoff dot com) +// Copyright (c) 2003-2021 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) @@ -16,11 +16,11 @@ #endif // defined(_MSC_VER) && (_MSC_VER >= 1200) #include <algorithm> -#include "asio/associated_allocator.hpp" -#include "asio/associated_executor.hpp" +#include "asio/associator.hpp" #include "asio/buffer.hpp" #include "asio/completion_condition.hpp" #include "asio/detail/array_fwd.hpp" +#include "asio/detail/base_from_cancellation_state.hpp" #include "asio/detail/base_from_completion_cond.hpp" #include "asio/detail/bind_handler.hpp" #include "asio/detail/consuming_buffers.hpp" @@ -28,7 +28,9 @@ #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_tracking.hpp" #include "asio/detail/handler_type_requirements.hpp" +#include "asio/detail/non_const_lvalue.hpp" #include "asio/detail/throw_error.hpp" #include "asio/error.hpp" @@ -55,7 +57,7 @@ namespace detail else break; } - return tmp.total_consumed();; + return tmp.total_consumed(); } } // namespace detail @@ -63,19 +65,20 @@ template <typename SyncReadStream, typename MutableBufferSequence, typename CompletionCondition> std::size_t read(SyncReadStream& s, const MutableBufferSequence& buffers, CompletionCondition completion_condition, asio::error_code& ec, - typename enable_if< + typename constraint< is_mutable_buffer_sequence<MutableBufferSequence>::value - >::type*) + >::type) { return detail::read_buffer_sequence(s, buffers, - asio::buffer_sequence_begin(buffers), completion_condition, ec); + asio::buffer_sequence_begin(buffers), + ASIO_MOVE_CAST(CompletionCondition)(completion_condition), ec); } template <typename SyncReadStream, typename MutableBufferSequence> inline std::size_t read(SyncReadStream& s, const MutableBufferSequence& buffers, - typename enable_if< + typename constraint< is_mutable_buffer_sequence<MutableBufferSequence>::value - >::type*) + >::type) { asio::error_code ec; std::size_t bytes_transferred = read(s, buffers, transfer_all(), ec); @@ -86,9 +89,9 @@ inline std::size_t read(SyncReadStream& s, const MutableBufferSequence& buffers, template <typename SyncReadStream, typename MutableBufferSequence> inline std::size_t read(SyncReadStream& s, const MutableBufferSequence& buffers, asio::error_code& ec, - typename enable_if< + typename constraint< is_mutable_buffer_sequence<MutableBufferSequence>::value - >::type*) + >::type) { return read(s, buffers, transfer_all(), ec); } @@ -97,27 +100,33 @@ template <typename SyncReadStream, typename MutableBufferSequence, typename CompletionCondition> inline std::size_t read(SyncReadStream& s, const MutableBufferSequence& buffers, CompletionCondition completion_condition, - typename enable_if< + typename constraint< is_mutable_buffer_sequence<MutableBufferSequence>::value - >::type*) + >::type) { asio::error_code ec; - std::size_t bytes_transferred = read(s, buffers, completion_condition, ec); + std::size_t bytes_transferred = read(s, buffers, + ASIO_MOVE_CAST(CompletionCondition)(completion_condition), ec); asio::detail::throw_error(ec, "read"); return bytes_transferred; } -template <typename SyncReadStream, typename DynamicBuffer, +#if !defined(ASIO_NO_DYNAMIC_BUFFER_V1) + +template <typename SyncReadStream, typename DynamicBuffer_v1, typename CompletionCondition> std::size_t read(SyncReadStream& s, - ASIO_MOVE_ARG(DynamicBuffer) buffers, + ASIO_MOVE_ARG(DynamicBuffer_v1) buffers, CompletionCondition completion_condition, asio::error_code& ec, - typename enable_if< - is_dynamic_buffer<DynamicBuffer>::value - >::type*) + typename constraint< + is_dynamic_buffer_v1<typename decay<DynamicBuffer_v1>::type>::value + >::type, + typename constraint< + !is_dynamic_buffer_v2<typename decay<DynamicBuffer_v1>::type>::value + >::type) { - typename decay<DynamicBuffer>::type b( - ASIO_MOVE_CAST(DynamicBuffer)(buffers)); + typename decay<DynamicBuffer_v1>::type b( + ASIO_MOVE_CAST(DynamicBuffer_v1)(buffers)); ec = asio::error_code(); std::size_t total_transferred = 0; @@ -140,45 +149,54 @@ std::size_t read(SyncReadStream& s, return total_transferred; } -template <typename SyncReadStream, typename DynamicBuffer> +template <typename SyncReadStream, typename DynamicBuffer_v1> inline std::size_t read(SyncReadStream& s, - ASIO_MOVE_ARG(DynamicBuffer) buffers, - typename enable_if< - is_dynamic_buffer<DynamicBuffer>::value - >::type*) + ASIO_MOVE_ARG(DynamicBuffer_v1) buffers, + typename constraint< + is_dynamic_buffer_v1<typename decay<DynamicBuffer_v1>::type>::value + >::type, + typename constraint< + !is_dynamic_buffer_v2<typename decay<DynamicBuffer_v1>::type>::value + >::type) { asio::error_code ec; std::size_t bytes_transferred = read(s, - ASIO_MOVE_CAST(DynamicBuffer)(buffers), transfer_all(), ec); + ASIO_MOVE_CAST(DynamicBuffer_v1)(buffers), transfer_all(), ec); asio::detail::throw_error(ec, "read"); return bytes_transferred; } -template <typename SyncReadStream, typename DynamicBuffer> +template <typename SyncReadStream, typename DynamicBuffer_v1> inline std::size_t read(SyncReadStream& s, - ASIO_MOVE_ARG(DynamicBuffer) buffers, + ASIO_MOVE_ARG(DynamicBuffer_v1) buffers, asio::error_code& ec, - typename enable_if< - is_dynamic_buffer<DynamicBuffer>::value - >::type*) + typename constraint< + is_dynamic_buffer_v1<typename decay<DynamicBuffer_v1>::type>::value + >::type, + typename constraint< + !is_dynamic_buffer_v2<typename decay<DynamicBuffer_v1>::type>::value + >::type) { - return read(s, ASIO_MOVE_CAST(DynamicBuffer)(buffers), + return read(s, ASIO_MOVE_CAST(DynamicBuffer_v1)(buffers), transfer_all(), ec); } -template <typename SyncReadStream, typename DynamicBuffer, +template <typename SyncReadStream, typename DynamicBuffer_v1, typename CompletionCondition> inline std::size_t read(SyncReadStream& s, - ASIO_MOVE_ARG(DynamicBuffer) buffers, + ASIO_MOVE_ARG(DynamicBuffer_v1) buffers, CompletionCondition completion_condition, - typename enable_if< - is_dynamic_buffer<DynamicBuffer>::value - >::type*) + typename constraint< + is_dynamic_buffer_v1<typename decay<DynamicBuffer_v1>::type>::value + >::type, + typename constraint< + !is_dynamic_buffer_v2<typename decay<DynamicBuffer_v1>::type>::value + >::type) { asio::error_code ec; std::size_t bytes_transferred = read(s, - ASIO_MOVE_CAST(DynamicBuffer)(buffers), - completion_condition, ec); + ASIO_MOVE_CAST(DynamicBuffer_v1)(buffers), + ASIO_MOVE_CAST(CompletionCondition)(completion_condition), ec); asio::detail::throw_error(ec, "read"); return bytes_transferred; } @@ -192,7 +210,8 @@ inline std::size_t read(SyncReadStream& s, asio::basic_streambuf<Allocator>& b, CompletionCondition completion_condition, asio::error_code& ec) { - return read(s, basic_streambuf_ref<Allocator>(b), completion_condition, ec); + return read(s, basic_streambuf_ref<Allocator>(b), + ASIO_MOVE_CAST(CompletionCondition)(completion_condition), ec); } template <typename SyncReadStream, typename Allocator> @@ -216,11 +235,87 @@ inline std::size_t read(SyncReadStream& s, asio::basic_streambuf<Allocator>& b, CompletionCondition completion_condition) { - return read(s, basic_streambuf_ref<Allocator>(b), completion_condition); + return read(s, basic_streambuf_ref<Allocator>(b), + ASIO_MOVE_CAST(CompletionCondition)(completion_condition)); } #endif // !defined(ASIO_NO_IOSTREAM) #endif // !defined(ASIO_NO_EXTENSIONS) +#endif // !defined(ASIO_NO_DYNAMIC_BUFFER_V1) + +template <typename SyncReadStream, typename DynamicBuffer_v2, + typename CompletionCondition> +std::size_t read(SyncReadStream& s, DynamicBuffer_v2 buffers, + CompletionCondition completion_condition, asio::error_code& ec, + typename constraint< + is_dynamic_buffer_v2<DynamicBuffer_v2>::value + >::type) +{ + DynamicBuffer_v2& b = buffers; + + 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 = 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 pos = b.size(); + b.grow(bytes_available); + std::size_t bytes_transferred = s.read_some( + b.data(pos, bytes_available), ec); + b.shrink(bytes_available - 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_v2> +inline std::size_t read(SyncReadStream& s, DynamicBuffer_v2 buffers, + typename constraint< + is_dynamic_buffer_v2<DynamicBuffer_v2>::value + >::type) +{ + asio::error_code ec; + std::size_t bytes_transferred = read(s, + ASIO_MOVE_CAST(DynamicBuffer_v2)(buffers), transfer_all(), ec); + asio::detail::throw_error(ec, "read"); + return bytes_transferred; +} + +template <typename SyncReadStream, typename DynamicBuffer_v2> +inline std::size_t read(SyncReadStream& s, DynamicBuffer_v2 buffers, + asio::error_code& ec, + typename constraint< + is_dynamic_buffer_v2<DynamicBuffer_v2>::value + >::type) +{ + return read(s, ASIO_MOVE_CAST(DynamicBuffer_v2)(buffers), + transfer_all(), ec); +} + +template <typename SyncReadStream, typename DynamicBuffer_v2, + typename CompletionCondition> +inline std::size_t read(SyncReadStream& s, DynamicBuffer_v2 buffers, + CompletionCondition completion_condition, + typename constraint< + is_dynamic_buffer_v2<DynamicBuffer_v2>::value + >::type) +{ + asio::error_code ec; + std::size_t bytes_transferred = read(s, + ASIO_MOVE_CAST(DynamicBuffer_v2)(buffers), + ASIO_MOVE_CAST(CompletionCondition)(completion_condition), ec); + asio::detail::throw_error(ec, "read"); + return bytes_transferred; +} namespace detail { @@ -228,13 +323,15 @@ namespace detail typename MutableBufferIterator, typename CompletionCondition, typename ReadHandler> class read_op - : detail::base_from_completion_cond<CompletionCondition> + : public base_from_cancellation_state<ReadHandler>, + 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), + CompletionCondition& completion_condition, ReadHandler& handler) + : base_from_cancellation_state<ReadHandler>( + handler, enable_partial_cancellation()), + base_from_completion_cond<CompletionCondition>(completion_condition), stream_(stream), buffers_(buffers), start_(0), @@ -244,7 +341,8 @@ namespace detail #if defined(ASIO_HAS_MOVE) read_op(const read_op& other) - : detail::base_from_completion_cond<CompletionCondition>(other), + : base_from_cancellation_state<ReadHandler>(other), + base_from_completion_cond<CompletionCondition>(other), stream_(other.stream_), buffers_(other.buffers_), start_(other.start_), @@ -253,16 +351,21 @@ namespace detail } read_op(read_op&& other) - : detail::base_from_completion_cond<CompletionCondition>(other), + : base_from_cancellation_state<ReadHandler>( + ASIO_MOVE_CAST(base_from_cancellation_state< + ReadHandler>)(other)), + base_from_completion_cond<CompletionCondition>( + ASIO_MOVE_CAST(base_from_completion_cond< + CompletionCondition>)(other)), stream_(other.stream_), - buffers_(other.buffers_), + buffers_(ASIO_MOVE_CAST(buffers_type)(other.buffers_)), start_(other.start_), handler_(ASIO_MOVE_CAST(ReadHandler)(other.handler_)) { } #endif // defined(ASIO_HAS_MOVE) - void operator()(const asio::error_code& ec, + void operator()(asio::error_code ec, std::size_t bytes_transferred, int start = 0) { std::size_t max_size; @@ -270,25 +373,39 @@ namespace detail { case 1: max_size = this->check_for_completion(ec, buffers_.total_consumed()); - do + for (;;) { - stream_.async_read_some(buffers_.prepare(max_size), - ASIO_MOVE_CAST(read_op)(*this)); + { + ASIO_HANDLER_LOCATION((__FILE__, __LINE__, "async_read")); + stream_.async_read_some(buffers_.prepare(max_size), + 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); + if (max_size == 0) + break; + if (this->cancelled() != cancellation_type::none) + { + ec = error::operation_aborted; + break; + } + } - handler_(ec, buffers_.total_consumed()); + ASIO_MOVE_OR_LVALUE(ReadHandler)(handler_)( + static_cast<const asio::error_code&>(ec), + static_cast<const std::size_t&>(buffers_.total_consumed())); } } //private: + typedef asio::detail::consuming_buffers<mutable_buffer, + MutableBufferSequence, MutableBufferIterator> buffers_type; + AsyncReadStream& stream_; - asio::detail::consuming_buffers<mutable_buffer, - MutableBufferSequence, MutableBufferIterator> buffers_; + buffers_type buffers_; int start_; ReadHandler handler_; }; @@ -296,23 +413,33 @@ namespace detail template <typename AsyncReadStream, typename MutableBufferSequence, typename MutableBufferIterator, typename CompletionCondition, typename ReadHandler> - inline void* asio_handler_allocate(std::size_t size, + inline asio_handler_allocate_is_deprecated + asio_handler_allocate(std::size_t size, read_op<AsyncReadStream, MutableBufferSequence, MutableBufferIterator, CompletionCondition, ReadHandler>* this_handler) { +#if defined(ASIO_NO_DEPRECATED) + asio_handler_alloc_helpers::allocate(size, this_handler->handler_); + return asio_handler_allocate_is_no_longer_used(); +#else // defined(ASIO_NO_DEPRECATED) return asio_handler_alloc_helpers::allocate( size, this_handler->handler_); +#endif // defined(ASIO_NO_DEPRECATED) } template <typename AsyncReadStream, typename MutableBufferSequence, typename MutableBufferIterator, typename CompletionCondition, typename ReadHandler> - inline void asio_handler_deallocate(void* pointer, std::size_t size, + inline asio_handler_deallocate_is_deprecated + asio_handler_deallocate(void* pointer, std::size_t size, read_op<AsyncReadStream, MutableBufferSequence, MutableBufferIterator, CompletionCondition, ReadHandler>* this_handler) { asio_handler_alloc_helpers::deallocate( pointer, size, this_handler->handler_); +#if defined(ASIO_NO_DEPRECATED) + return asio_handler_deallocate_is_no_longer_used(); +#endif // defined(ASIO_NO_DEPRECATED) } template <typename AsyncReadStream, typename MutableBufferSequence, @@ -330,23 +457,31 @@ namespace detail template <typename Function, typename AsyncReadStream, typename MutableBufferSequence, typename MutableBufferIterator, typename CompletionCondition, typename ReadHandler> - inline void asio_handler_invoke(Function& function, + inline asio_handler_invoke_is_deprecated + asio_handler_invoke(Function& function, read_op<AsyncReadStream, MutableBufferSequence, MutableBufferIterator, CompletionCondition, ReadHandler>* this_handler) { asio_handler_invoke_helpers::invoke( function, this_handler->handler_); +#if defined(ASIO_NO_DEPRECATED) + return asio_handler_invoke_is_no_longer_used(); +#endif // defined(ASIO_NO_DEPRECATED) } template <typename Function, typename AsyncReadStream, typename MutableBufferSequence, typename MutableBufferIterator, typename CompletionCondition, typename ReadHandler> - inline void asio_handler_invoke(const Function& function, + inline asio_handler_invoke_is_deprecated + asio_handler_invoke(const Function& function, read_op<AsyncReadStream, MutableBufferSequence, MutableBufferIterator, CompletionCondition, ReadHandler>* this_handler) { asio_handler_invoke_helpers::invoke( function, this_handler->handler_); +#if defined(ASIO_NO_DEPRECATED) + return asio_handler_invoke_is_no_longer_used(); +#endif // defined(ASIO_NO_DEPRECATED) } template <typename AsyncReadStream, typename MutableBufferSequence, @@ -354,120 +489,129 @@ namespace detail typename ReadHandler> inline void start_read_buffer_sequence_op(AsyncReadStream& stream, const MutableBufferSequence& buffers, const MutableBufferIterator&, - CompletionCondition completion_condition, ReadHandler& handler) + CompletionCondition& completion_condition, ReadHandler& handler) { detail::read_op<AsyncReadStream, MutableBufferSequence, MutableBufferIterator, CompletionCondition, ReadHandler>( stream, buffers, completion_condition, handler)( asio::error_code(), 0, 1); } -} // namespace detail -#if !defined(GENERATING_DOCUMENTATION) + template <typename AsyncReadStream> + class initiate_async_read_buffer_sequence + { + public: + typedef typename AsyncReadStream::executor_type executor_type; -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; + explicit initiate_async_read_buffer_sequence(AsyncReadStream& stream) + : stream_(stream) + { + } - static type get( - const detail::read_op<AsyncReadStream, MutableBufferSequence, - MutableBufferIterator, CompletionCondition, ReadHandler>& h, - const Allocator& a = Allocator()) ASIO_NOEXCEPT - { - return associated_allocator<ReadHandler, Allocator>::get(h.handler_, a); - } -}; + executor_type get_executor() const ASIO_NOEXCEPT + { + return stream_.get_executor(); + } -template <typename AsyncReadStream, typename MutableBufferSequence, + template <typename ReadHandler, typename MutableBufferSequence, + typename CompletionCondition> + void operator()(ASIO_MOVE_ARG(ReadHandler) handler, + const MutableBufferSequence& buffers, + ASIO_MOVE_ARG(CompletionCondition) completion_cond) const + { + // 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; + + non_const_lvalue<ReadHandler> handler2(handler); + non_const_lvalue<CompletionCondition> completion_cond2(completion_cond); + start_read_buffer_sequence_op(stream_, buffers, + asio::buffer_sequence_begin(buffers), + completion_cond2.value, handler2.value); + } + + private: + AsyncReadStream& stream_; + }; +} // namespace detail + +#if !defined(GENERATING_DOCUMENTATION) + +template <template <typename, typename> class Associator, + typename AsyncReadStream, typename MutableBufferSequence, typename MutableBufferIterator, typename CompletionCondition, - typename ReadHandler, typename Executor> -struct associated_executor< + typename ReadHandler, typename DefaultCandidate> +struct associator<Associator, detail::read_op<AsyncReadStream, MutableBufferSequence, MutableBufferIterator, CompletionCondition, ReadHandler>, - Executor> + DefaultCandidate> + : Associator<ReadHandler, DefaultCandidate> { - typedef typename associated_executor<ReadHandler, Executor>::type type; - - static type get( + static typename Associator<ReadHandler, DefaultCandidate>::type get( const detail::read_op<AsyncReadStream, MutableBufferSequence, MutableBufferIterator, CompletionCondition, ReadHandler>& h, - const Executor& ex = Executor()) ASIO_NOEXCEPT + const DefaultCandidate& c = DefaultCandidate()) ASIO_NOEXCEPT { - return associated_executor<ReadHandler, Executor>::get(h.handler_, ex); + return Associator<ReadHandler, DefaultCandidate>::get(h.handler_, c); } }; #endif // !defined(GENERATING_DOCUMENTATION) -template <typename AsyncReadStream, typename MutableBufferSequence, - typename CompletionCondition, typename ReadHandler> -inline ASIO_INITFN_RESULT_TYPE(ReadHandler, +template <typename AsyncReadStream, + typename MutableBufferSequence, typename CompletionCondition, + ASIO_COMPLETION_TOKEN_FOR(void (asio::error_code, + std::size_t)) ReadHandler> +inline ASIO_INITFN_AUTO_RESULT_TYPE(ReadHandler, void (asio::error_code, std::size_t)) async_read(AsyncReadStream& s, const MutableBufferSequence& buffers, CompletionCondition completion_condition, ASIO_MOVE_ARG(ReadHandler) handler, - typename enable_if< + typename constraint< is_mutable_buffer_sequence<MutableBufferSequence>::value - >::type*) + >::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. - ASIO_READ_HANDLER_CHECK(ReadHandler, handler) type_check; - - async_completion<ReadHandler, - void (asio::error_code, std::size_t)> init(handler); - - detail::start_read_buffer_sequence_op(s, buffers, - asio::buffer_sequence_begin(buffers), completion_condition, - init.completion_handler); - - return init.result.get(); + return async_initiate<ReadHandler, + void (asio::error_code, std::size_t)>( + detail::initiate_async_read_buffer_sequence<AsyncReadStream>(s), handler, + buffers, ASIO_MOVE_CAST(CompletionCondition)(completion_condition)); } template <typename AsyncReadStream, typename MutableBufferSequence, - typename ReadHandler> -inline ASIO_INITFN_RESULT_TYPE(ReadHandler, + ASIO_COMPLETION_TOKEN_FOR(void (asio::error_code, + std::size_t)) ReadHandler> +inline ASIO_INITFN_AUTO_RESULT_TYPE(ReadHandler, void (asio::error_code, std::size_t)) async_read(AsyncReadStream& s, const MutableBufferSequence& buffers, ASIO_MOVE_ARG(ReadHandler) handler, - typename enable_if< + typename constraint< is_mutable_buffer_sequence<MutableBufferSequence>::value - >::type*) + >::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. - ASIO_READ_HANDLER_CHECK(ReadHandler, handler) type_check; - - async_completion<ReadHandler, - void (asio::error_code, std::size_t)> init(handler); - - detail::start_read_buffer_sequence_op(s, buffers, - asio::buffer_sequence_begin(buffers), transfer_all(), - init.completion_handler); - - return init.result.get(); + return async_initiate<ReadHandler, + void (asio::error_code, std::size_t)>( + detail::initiate_async_read_buffer_sequence<AsyncReadStream>(s), + handler, buffers, transfer_all()); } +#if !defined(ASIO_NO_DYNAMIC_BUFFER_V1) + namespace detail { - template <typename AsyncReadStream, typename DynamicBuffer, + template <typename AsyncReadStream, typename DynamicBuffer_v1, typename CompletionCondition, typename ReadHandler> - class read_dynbuf_op - : detail::base_from_completion_cond<CompletionCondition> + class read_dynbuf_v1_op + : public base_from_cancellation_state<ReadHandler>, + base_from_completion_cond<CompletionCondition> { public: template <typename BufferSequence> - read_dynbuf_op(AsyncReadStream& stream, + read_dynbuf_v1_op(AsyncReadStream& stream, ASIO_MOVE_ARG(BufferSequence) buffers, - CompletionCondition completion_condition, ReadHandler& handler) - : detail::base_from_completion_cond< - CompletionCondition>(completion_condition), + CompletionCondition& completion_condition, ReadHandler& handler) + : base_from_cancellation_state<ReadHandler>( + handler, enable_partial_cancellation()), + base_from_completion_cond<CompletionCondition>(completion_condition), stream_(stream), buffers_(ASIO_MOVE_CAST(BufferSequence)(buffers)), start_(0), @@ -477,8 +621,9 @@ namespace detail } #if defined(ASIO_HAS_MOVE) - read_dynbuf_op(const read_dynbuf_op& other) - : detail::base_from_completion_cond<CompletionCondition>(other), + read_dynbuf_v1_op(const read_dynbuf_v1_op& other) + : base_from_cancellation_state<ReadHandler>(other), + base_from_completion_cond<CompletionCondition>(other), stream_(other.stream_), buffers_(other.buffers_), start_(other.start_), @@ -487,10 +632,15 @@ namespace detail { } - read_dynbuf_op(read_dynbuf_op&& other) - : detail::base_from_completion_cond<CompletionCondition>(other), + read_dynbuf_v1_op(read_dynbuf_v1_op&& other) + : base_from_cancellation_state<ReadHandler>( + ASIO_MOVE_CAST(base_from_cancellation_state< + ReadHandler>)(other)), + base_from_completion_cond<CompletionCondition>( + ASIO_MOVE_CAST(base_from_completion_cond< + CompletionCondition>)(other)), stream_(other.stream_), - buffers_(ASIO_MOVE_CAST(DynamicBuffer)(other.buffers_)), + buffers_(ASIO_MOVE_CAST(DynamicBuffer_v1)(other.buffers_)), start_(other.start_), total_transferred_(other.total_transferred_), handler_(ASIO_MOVE_CAST(ReadHandler)(other.handler_)) @@ -498,7 +648,7 @@ namespace detail } #endif // defined(ASIO_HAS_MOVE) - void operator()(const asio::error_code& ec, + void operator()(asio::error_code ec, std::size_t bytes_transferred, int start = 0) { std::size_t max_size, bytes_available; @@ -513,8 +663,11 @@ namespace detail buffers_.max_size() - buffers_.size())); for (;;) { - stream_.async_read_some(buffers_.prepare(bytes_available), - ASIO_MOVE_CAST(read_dynbuf_op)(*this)); + { + ASIO_HANDLER_LOCATION((__FILE__, __LINE__, "async_read")); + stream_.async_read_some(buffers_.prepare(bytes_available), + ASIO_MOVE_CAST(read_dynbuf_v1_op)(*this)); + } return; default: total_transferred_ += bytes_transferred; buffers_.commit(bytes_transferred); @@ -526,44 +679,61 @@ namespace detail buffers_.max_size() - buffers_.size())); if ((!ec && bytes_transferred == 0) || bytes_available == 0) break; + if (this->cancelled() != cancellation_type::none) + { + ec = error::operation_aborted; + break; + } } - handler_(ec, static_cast<const std::size_t&>(total_transferred_)); + ASIO_MOVE_OR_LVALUE(ReadHandler)(handler_)( + static_cast<const asio::error_code&>(ec), + static_cast<const std::size_t&>(total_transferred_)); } } //private: AsyncReadStream& stream_; - DynamicBuffer buffers_; + DynamicBuffer_v1 buffers_; int start_; std::size_t total_transferred_; ReadHandler handler_; }; - template <typename AsyncReadStream, typename DynamicBuffer, + template <typename AsyncReadStream, typename DynamicBuffer_v1, typename CompletionCondition, typename ReadHandler> - inline void* asio_handler_allocate(std::size_t size, - read_dynbuf_op<AsyncReadStream, DynamicBuffer, + inline asio_handler_allocate_is_deprecated + asio_handler_allocate(std::size_t size, + read_dynbuf_v1_op<AsyncReadStream, DynamicBuffer_v1, CompletionCondition, ReadHandler>* this_handler) { +#if defined(ASIO_NO_DEPRECATED) + asio_handler_alloc_helpers::allocate(size, this_handler->handler_); + return asio_handler_allocate_is_no_longer_used(); +#else // defined(ASIO_NO_DEPRECATED) return asio_handler_alloc_helpers::allocate( size, this_handler->handler_); +#endif // defined(ASIO_NO_DEPRECATED) } - template <typename AsyncReadStream, typename DynamicBuffer, + template <typename AsyncReadStream, typename DynamicBuffer_v1, typename CompletionCondition, typename ReadHandler> - inline void asio_handler_deallocate(void* pointer, std::size_t size, - read_dynbuf_op<AsyncReadStream, DynamicBuffer, + inline asio_handler_deallocate_is_deprecated + asio_handler_deallocate(void* pointer, std::size_t size, + read_dynbuf_v1_op<AsyncReadStream, DynamicBuffer_v1, CompletionCondition, ReadHandler>* this_handler) { asio_handler_alloc_helpers::deallocate( pointer, size, this_handler->handler_); +#if defined(ASIO_NO_DEPRECATED) + return asio_handler_deallocate_is_no_longer_used(); +#endif // defined(ASIO_NO_DEPRECATED) } - template <typename AsyncReadStream, typename DynamicBuffer, + template <typename AsyncReadStream, typename DynamicBuffer_v1, typename CompletionCondition, typename ReadHandler> inline bool asio_handler_is_continuation( - read_dynbuf_op<AsyncReadStream, DynamicBuffer, + read_dynbuf_v1_op<AsyncReadStream, DynamicBuffer_v1, CompletionCondition, ReadHandler>* this_handler) { return this_handler->start_ == 0 ? true @@ -572,119 +742,149 @@ namespace detail } template <typename Function, typename AsyncReadStream, - typename DynamicBuffer, typename CompletionCondition, + typename DynamicBuffer_v1, typename CompletionCondition, typename ReadHandler> - inline void asio_handler_invoke(Function& function, - read_dynbuf_op<AsyncReadStream, DynamicBuffer, + inline asio_handler_invoke_is_deprecated + asio_handler_invoke(Function& function, + read_dynbuf_v1_op<AsyncReadStream, DynamicBuffer_v1, CompletionCondition, ReadHandler>* this_handler) { asio_handler_invoke_helpers::invoke( function, this_handler->handler_); +#if defined(ASIO_NO_DEPRECATED) + return asio_handler_invoke_is_no_longer_used(); +#endif // defined(ASIO_NO_DEPRECATED) } template <typename Function, typename AsyncReadStream, - typename DynamicBuffer, typename CompletionCondition, + typename DynamicBuffer_v1, typename CompletionCondition, typename ReadHandler> - inline void asio_handler_invoke(const Function& function, - read_dynbuf_op<AsyncReadStream, DynamicBuffer, + inline asio_handler_invoke_is_deprecated + asio_handler_invoke(const Function& function, + read_dynbuf_v1_op<AsyncReadStream, DynamicBuffer_v1, CompletionCondition, ReadHandler>* this_handler) { asio_handler_invoke_helpers::invoke( function, this_handler->handler_); +#if defined(ASIO_NO_DEPRECATED) + return asio_handler_invoke_is_no_longer_used(); +#endif // defined(ASIO_NO_DEPRECATED) } -} // namespace detail -#if !defined(GENERATING_DOCUMENTATION) + template <typename AsyncReadStream> + class initiate_async_read_dynbuf_v1 + { + public: + typedef typename AsyncReadStream::executor_type executor_type; -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; + explicit initiate_async_read_dynbuf_v1(AsyncReadStream& stream) + : stream_(stream) + { + } - static type get( - const detail::read_dynbuf_op<AsyncReadStream, - DynamicBuffer, CompletionCondition, ReadHandler>& h, - const Allocator& a = Allocator()) ASIO_NOEXCEPT - { - return associated_allocator<ReadHandler, Allocator>::get(h.handler_, a); - } -}; + executor_type get_executor() const ASIO_NOEXCEPT + { + return stream_.get_executor(); + } -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; + template <typename ReadHandler, typename DynamicBuffer_v1, + typename CompletionCondition> + void operator()(ASIO_MOVE_ARG(ReadHandler) handler, + ASIO_MOVE_ARG(DynamicBuffer_v1) buffers, + ASIO_MOVE_ARG(CompletionCondition) completion_cond) const + { + // 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; + + non_const_lvalue<ReadHandler> handler2(handler); + non_const_lvalue<CompletionCondition> completion_cond2(completion_cond); + read_dynbuf_v1_op<AsyncReadStream, typename decay<DynamicBuffer_v1>::type, + CompletionCondition, typename decay<ReadHandler>::type>( + stream_, ASIO_MOVE_CAST(DynamicBuffer_v1)(buffers), + completion_cond2.value, handler2.value)( + asio::error_code(), 0, 1); + } - static type get( - const detail::read_dynbuf_op<AsyncReadStream, - DynamicBuffer, CompletionCondition, ReadHandler>& h, - const Executor& ex = Executor()) ASIO_NOEXCEPT + private: + AsyncReadStream& stream_; + }; +} // namespace detail + +#if !defined(GENERATING_DOCUMENTATION) + +template <template <typename, typename> class Associator, + typename AsyncReadStream, typename DynamicBuffer_v1, + typename CompletionCondition, typename ReadHandler, + typename DefaultCandidate> +struct associator<Associator, + detail::read_dynbuf_v1_op<AsyncReadStream, + DynamicBuffer_v1, CompletionCondition, ReadHandler>, + DefaultCandidate> + : Associator<ReadHandler, DefaultCandidate> +{ + static typename Associator<ReadHandler, DefaultCandidate>::type get( + const detail::read_dynbuf_v1_op<AsyncReadStream, + DynamicBuffer_v1, CompletionCondition, ReadHandler>& h, + const DefaultCandidate& c = DefaultCandidate()) ASIO_NOEXCEPT { - return associated_executor<ReadHandler, Executor>::get(h.handler_, ex); + return Associator<ReadHandler, DefaultCandidate>::get(h.handler_, c); } }; #endif // !defined(GENERATING_DOCUMENTATION) -template <typename AsyncReadStream, - typename DynamicBuffer, typename ReadHandler> -inline ASIO_INITFN_RESULT_TYPE(ReadHandler, +template <typename AsyncReadStream, typename DynamicBuffer_v1, + ASIO_COMPLETION_TOKEN_FOR(void (asio::error_code, + std::size_t)) ReadHandler> +inline ASIO_INITFN_AUTO_RESULT_TYPE(ReadHandler, void (asio::error_code, std::size_t)) async_read(AsyncReadStream& s, - ASIO_MOVE_ARG(DynamicBuffer) buffers, + ASIO_MOVE_ARG(DynamicBuffer_v1) buffers, ASIO_MOVE_ARG(ReadHandler) handler, - typename enable_if< - is_dynamic_buffer<DynamicBuffer>::value - >::type*) + typename constraint< + is_dynamic_buffer_v1<typename decay<DynamicBuffer_v1>::type>::value + >::type, + typename constraint< + !is_dynamic_buffer_v2<typename decay<DynamicBuffer_v1>::type>::value + >::type) { return async_read(s, - ASIO_MOVE_CAST(DynamicBuffer)(buffers), + ASIO_MOVE_CAST(DynamicBuffer_v1)(buffers), transfer_all(), ASIO_MOVE_CAST(ReadHandler)(handler)); } -template <typename AsyncReadStream, typename DynamicBuffer, - typename CompletionCondition, typename ReadHandler> -inline ASIO_INITFN_RESULT_TYPE(ReadHandler, +template <typename AsyncReadStream, + typename DynamicBuffer_v1, typename CompletionCondition, + ASIO_COMPLETION_TOKEN_FOR(void (asio::error_code, + std::size_t)) ReadHandler> +inline ASIO_INITFN_AUTO_RESULT_TYPE(ReadHandler, void (asio::error_code, std::size_t)) async_read(AsyncReadStream& s, - ASIO_MOVE_ARG(DynamicBuffer) buffers, + ASIO_MOVE_ARG(DynamicBuffer_v1) buffers, CompletionCondition completion_condition, ASIO_MOVE_ARG(ReadHandler) handler, - typename enable_if< - is_dynamic_buffer<DynamicBuffer>::value - >::type*) + typename constraint< + is_dynamic_buffer_v1<typename decay<DynamicBuffer_v1>::type>::value + >::type, + typename constraint< + !is_dynamic_buffer_v2<typename decay<DynamicBuffer_v1>::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. - ASIO_READ_HANDLER_CHECK(ReadHandler, handler) type_check; - - async_completion<ReadHandler, - void (asio::error_code, std::size_t)> init(handler); - - detail::read_dynbuf_op<AsyncReadStream, - typename decay<DynamicBuffer>::type, - CompletionCondition, ASIO_HANDLER_TYPE( - ReadHandler, void (asio::error_code, std::size_t))>( - s, ASIO_MOVE_CAST(DynamicBuffer)(buffers), - completion_condition, init.completion_handler)( - asio::error_code(), 0, 1); - - return init.result.get(); + return async_initiate<ReadHandler, + void (asio::error_code, std::size_t)>( + detail::initiate_async_read_dynbuf_v1<AsyncReadStream>(s), + handler, ASIO_MOVE_CAST(DynamicBuffer_v1)(buffers), + ASIO_MOVE_CAST(CompletionCondition)(completion_condition)); } #if !defined(ASIO_NO_EXTENSIONS) #if !defined(ASIO_NO_IOSTREAM) -template <typename AsyncReadStream, typename Allocator, typename ReadHandler> -inline ASIO_INITFN_RESULT_TYPE(ReadHandler, +template <typename AsyncReadStream, typename Allocator, + ASIO_COMPLETION_TOKEN_FOR(void (asio::error_code, + std::size_t)) ReadHandler> +inline ASIO_INITFN_AUTO_RESULT_TYPE(ReadHandler, void (asio::error_code, std::size_t)) async_read(AsyncReadStream& s, basic_streambuf<Allocator>& b, ASIO_MOVE_ARG(ReadHandler) handler) @@ -693,20 +893,304 @@ async_read(AsyncReadStream& s, basic_streambuf<Allocator>& b, ASIO_MOVE_CAST(ReadHandler)(handler)); } -template <typename AsyncReadStream, typename Allocator, - typename CompletionCondition, typename ReadHandler> -inline ASIO_INITFN_RESULT_TYPE(ReadHandler, +template <typename AsyncReadStream, + typename Allocator, typename CompletionCondition, + ASIO_COMPLETION_TOKEN_FOR(void (asio::error_code, + std::size_t)) ReadHandler> +inline ASIO_INITFN_AUTO_RESULT_TYPE(ReadHandler, void (asio::error_code, std::size_t)) async_read(AsyncReadStream& s, basic_streambuf<Allocator>& b, CompletionCondition completion_condition, ASIO_MOVE_ARG(ReadHandler) handler) { return async_read(s, basic_streambuf_ref<Allocator>(b), - completion_condition, ASIO_MOVE_CAST(ReadHandler)(handler)); + ASIO_MOVE_CAST(CompletionCondition)(completion_condition), + ASIO_MOVE_CAST(ReadHandler)(handler)); } #endif // !defined(ASIO_NO_IOSTREAM) #endif // !defined(ASIO_NO_EXTENSIONS) +#endif // !defined(ASIO_NO_DYNAMIC_BUFFER_V1) + +namespace detail +{ + template <typename AsyncReadStream, typename DynamicBuffer_v2, + typename CompletionCondition, typename ReadHandler> + class read_dynbuf_v2_op + : public base_from_cancellation_state<ReadHandler>, + base_from_completion_cond<CompletionCondition> + { + public: + template <typename BufferSequence> + read_dynbuf_v2_op(AsyncReadStream& stream, + ASIO_MOVE_ARG(BufferSequence) buffers, + CompletionCondition& completion_condition, ReadHandler& handler) + : base_from_cancellation_state<ReadHandler>( + handler, enable_partial_cancellation()), + base_from_completion_cond<CompletionCondition>(completion_condition), + stream_(stream), + buffers_(ASIO_MOVE_CAST(BufferSequence)(buffers)), + start_(0), + total_transferred_(0), + bytes_available_(0), + handler_(ASIO_MOVE_CAST(ReadHandler)(handler)) + { + } + +#if defined(ASIO_HAS_MOVE) + read_dynbuf_v2_op(const read_dynbuf_v2_op& other) + : base_from_cancellation_state<ReadHandler>(other), + base_from_completion_cond<CompletionCondition>(other), + stream_(other.stream_), + buffers_(other.buffers_), + start_(other.start_), + total_transferred_(other.total_transferred_), + bytes_available_(other.bytes_available_), + handler_(other.handler_) + { + } + + read_dynbuf_v2_op(read_dynbuf_v2_op&& other) + : base_from_cancellation_state<ReadHandler>( + ASIO_MOVE_CAST(base_from_cancellation_state< + ReadHandler>)(other)), + base_from_completion_cond<CompletionCondition>( + ASIO_MOVE_CAST(base_from_completion_cond< + CompletionCondition>)(other)), + stream_(other.stream_), + buffers_(ASIO_MOVE_CAST(DynamicBuffer_v2)(other.buffers_)), + start_(other.start_), + total_transferred_(other.total_transferred_), + bytes_available_(other.bytes_available_), + handler_(ASIO_MOVE_CAST(ReadHandler)(other.handler_)) + { + } +#endif // defined(ASIO_HAS_MOVE) + + void operator()(asio::error_code ec, + std::size_t bytes_transferred, int start = 0) + { + std::size_t max_size, pos; + 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 (;;) + { + pos = buffers_.size(); + buffers_.grow(bytes_available_); + { + ASIO_HANDLER_LOCATION((__FILE__, __LINE__, "async_read")); + stream_.async_read_some(buffers_.data(pos, bytes_available_), + ASIO_MOVE_CAST(read_dynbuf_v2_op)(*this)); + } + return; default: + total_transferred_ += bytes_transferred; + buffers_.shrink(bytes_available_ - 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; + if (this->cancelled() != cancellation_type::none) + { + ec = error::operation_aborted; + break; + } + } + + ASIO_MOVE_OR_LVALUE(ReadHandler)(handler_)( + static_cast<const asio::error_code&>(ec), + static_cast<const std::size_t&>(total_transferred_)); + } + } + + //private: + AsyncReadStream& stream_; + DynamicBuffer_v2 buffers_; + int start_; + std::size_t total_transferred_; + std::size_t bytes_available_; + ReadHandler handler_; + }; + + template <typename AsyncReadStream, typename DynamicBuffer_v2, + typename CompletionCondition, typename ReadHandler> + inline asio_handler_allocate_is_deprecated + asio_handler_allocate(std::size_t size, + read_dynbuf_v2_op<AsyncReadStream, DynamicBuffer_v2, + CompletionCondition, ReadHandler>* this_handler) + { +#if defined(ASIO_NO_DEPRECATED) + asio_handler_alloc_helpers::allocate(size, this_handler->handler_); + return asio_handler_allocate_is_no_longer_used(); +#else // defined(ASIO_NO_DEPRECATED) + return asio_handler_alloc_helpers::allocate( + size, this_handler->handler_); +#endif // defined(ASIO_NO_DEPRECATED) + } + + template <typename AsyncReadStream, typename DynamicBuffer_v2, + typename CompletionCondition, typename ReadHandler> + inline asio_handler_deallocate_is_deprecated + asio_handler_deallocate(void* pointer, std::size_t size, + read_dynbuf_v2_op<AsyncReadStream, DynamicBuffer_v2, + CompletionCondition, ReadHandler>* this_handler) + { + asio_handler_alloc_helpers::deallocate( + pointer, size, this_handler->handler_); +#if defined(ASIO_NO_DEPRECATED) + return asio_handler_deallocate_is_no_longer_used(); +#endif // defined(ASIO_NO_DEPRECATED) + } + + template <typename AsyncReadStream, typename DynamicBuffer_v2, + typename CompletionCondition, typename ReadHandler> + inline bool asio_handler_is_continuation( + read_dynbuf_v2_op<AsyncReadStream, DynamicBuffer_v2, + CompletionCondition, ReadHandler>* this_handler) + { + return this_handler->start_ == 0 ? true + : asio_handler_cont_helpers::is_continuation( + this_handler->handler_); + } + + template <typename Function, typename AsyncReadStream, + typename DynamicBuffer_v2, typename CompletionCondition, + typename ReadHandler> + inline asio_handler_invoke_is_deprecated + asio_handler_invoke(Function& function, + read_dynbuf_v2_op<AsyncReadStream, DynamicBuffer_v2, + CompletionCondition, ReadHandler>* this_handler) + { + asio_handler_invoke_helpers::invoke( + function, this_handler->handler_); +#if defined(ASIO_NO_DEPRECATED) + return asio_handler_invoke_is_no_longer_used(); +#endif // defined(ASIO_NO_DEPRECATED) + } + + template <typename Function, typename AsyncReadStream, + typename DynamicBuffer_v2, typename CompletionCondition, + typename ReadHandler> + inline asio_handler_invoke_is_deprecated + asio_handler_invoke(const Function& function, + read_dynbuf_v2_op<AsyncReadStream, DynamicBuffer_v2, + CompletionCondition, ReadHandler>* this_handler) + { + asio_handler_invoke_helpers::invoke( + function, this_handler->handler_); +#if defined(ASIO_NO_DEPRECATED) + return asio_handler_invoke_is_no_longer_used(); +#endif // defined(ASIO_NO_DEPRECATED) + } + + template <typename AsyncReadStream> + class initiate_async_read_dynbuf_v2 + { + public: + typedef typename AsyncReadStream::executor_type executor_type; + + explicit initiate_async_read_dynbuf_v2(AsyncReadStream& stream) + : stream_(stream) + { + } + + executor_type get_executor() const ASIO_NOEXCEPT + { + return stream_.get_executor(); + } + + template <typename ReadHandler, typename DynamicBuffer_v2, + typename CompletionCondition> + void operator()(ASIO_MOVE_ARG(ReadHandler) handler, + ASIO_MOVE_ARG(DynamicBuffer_v2) buffers, + ASIO_MOVE_ARG(CompletionCondition) completion_cond) const + { + // 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; + + non_const_lvalue<ReadHandler> handler2(handler); + non_const_lvalue<CompletionCondition> completion_cond2(completion_cond); + read_dynbuf_v2_op<AsyncReadStream, typename decay<DynamicBuffer_v2>::type, + CompletionCondition, typename decay<ReadHandler>::type>( + stream_, ASIO_MOVE_CAST(DynamicBuffer_v2)(buffers), + completion_cond2.value, handler2.value)( + asio::error_code(), 0, 1); + } + + private: + AsyncReadStream& stream_; + }; +} // namespace detail + +#if !defined(GENERATING_DOCUMENTATION) + +template <template <typename, typename> class Associator, + typename AsyncReadStream, typename DynamicBuffer_v2, + typename CompletionCondition, typename ReadHandler, + typename DefaultCandidate> +struct associator<Associator, + detail::read_dynbuf_v2_op<AsyncReadStream, + DynamicBuffer_v2, CompletionCondition, ReadHandler>, + DefaultCandidate> + : Associator<ReadHandler, DefaultCandidate> +{ + static typename Associator<ReadHandler, DefaultCandidate>::type get( + const detail::read_dynbuf_v2_op<AsyncReadStream, + DynamicBuffer_v2, CompletionCondition, ReadHandler>& h, + const DefaultCandidate& c = DefaultCandidate()) ASIO_NOEXCEPT + { + return Associator<ReadHandler, DefaultCandidate>::get(h.handler_, c); + } +}; + +#endif // !defined(GENERATING_DOCUMENTATION) + +template <typename AsyncReadStream, typename DynamicBuffer_v2, + ASIO_COMPLETION_TOKEN_FOR(void (asio::error_code, + std::size_t)) ReadHandler> +inline ASIO_INITFN_AUTO_RESULT_TYPE(ReadHandler, + void (asio::error_code, std::size_t)) +async_read(AsyncReadStream& s, DynamicBuffer_v2 buffers, + ASIO_MOVE_ARG(ReadHandler) handler, + typename constraint< + is_dynamic_buffer_v2<DynamicBuffer_v2>::value + >::type) +{ + return async_read(s, + ASIO_MOVE_CAST(DynamicBuffer_v2)(buffers), + transfer_all(), ASIO_MOVE_CAST(ReadHandler)(handler)); +} + +template <typename AsyncReadStream, + typename DynamicBuffer_v2, typename CompletionCondition, + ASIO_COMPLETION_TOKEN_FOR(void (asio::error_code, + std::size_t)) ReadHandler> +inline ASIO_INITFN_AUTO_RESULT_TYPE(ReadHandler, + void (asio::error_code, std::size_t)) +async_read(AsyncReadStream& s, DynamicBuffer_v2 buffers, + CompletionCondition completion_condition, + ASIO_MOVE_ARG(ReadHandler) handler, + typename constraint< + is_dynamic_buffer_v2<DynamicBuffer_v2>::value + >::type) +{ + return async_initiate<ReadHandler, + void (asio::error_code, std::size_t)>( + detail::initiate_async_read_dynbuf_v2<AsyncReadStream>(s), + handler, ASIO_MOVE_CAST(DynamicBuffer_v2)(buffers), + ASIO_MOVE_CAST(CompletionCondition)(completion_condition)); +} } // namespace asio |