| // |
| // write.ipp |
| // ~~~~~~~~~ |
| // |
| // Copyright (c) 2003-2008 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_WRITE_IPP |
| #define ASIO_WRITE_IPP |
| |
| #if defined(_MSC_VER) && (_MSC_VER >= 1200) |
| # pragma once |
| #endif // defined(_MSC_VER) && (_MSC_VER >= 1200) |
| |
| #include "asio/detail/push_options.hpp" |
| |
| #include "asio/buffer.hpp" |
| #include "asio/completion_condition.hpp" |
| #include "asio/detail/bind_handler.hpp" |
| #include "asio/detail/consuming_buffers.hpp" |
| #include "asio/detail/handler_alloc_helpers.hpp" |
| #include "asio/detail/handler_invoke_helpers.hpp" |
| #include "asio/detail/throw_error.hpp" |
| |
| namespace asio { |
| |
| template <typename SyncWriteStream, typename ConstBufferSequence, |
| typename CompletionCondition> |
| std::size_t write(SyncWriteStream& s, const ConstBufferSequence& buffers, |
| CompletionCondition completion_condition, asio::error_code& ec) |
| { |
| ec = asio::error_code(); |
| asio::detail::consuming_buffers< |
| const_buffer, ConstBufferSequence> tmp(buffers); |
| std::size_t total_transferred = 0; |
| tmp.set_max_size(detail::adapt_completion_condition_result( |
| completion_condition(ec, total_transferred))); |
| while (tmp.begin() != tmp.end()) |
| { |
| std::size_t bytes_transferred = s.write_some(tmp, ec); |
| tmp.consume(bytes_transferred); |
| total_transferred += bytes_transferred; |
| tmp.set_max_size(detail::adapt_completion_condition_result( |
| completion_condition(ec, total_transferred))); |
| } |
| return total_transferred; |
| } |
| |
| template <typename SyncWriteStream, typename ConstBufferSequence> |
| inline std::size_t write(SyncWriteStream& s, const ConstBufferSequence& buffers) |
| { |
| asio::error_code ec; |
| std::size_t bytes_transferred = write(s, buffers, transfer_all(), ec); |
| asio::detail::throw_error(ec); |
| return bytes_transferred; |
| } |
| |
| template <typename SyncWriteStream, typename ConstBufferSequence, |
| typename CompletionCondition> |
| inline std::size_t write(SyncWriteStream& s, const ConstBufferSequence& buffers, |
| CompletionCondition completion_condition) |
| { |
| asio::error_code ec; |
| std::size_t bytes_transferred = write(s, buffers, completion_condition, ec); |
| asio::detail::throw_error(ec); |
| return bytes_transferred; |
| } |
| |
| template <typename SyncWriteStream, typename Allocator, |
| typename CompletionCondition> |
| std::size_t write(SyncWriteStream& s, |
| asio::basic_streambuf<Allocator>& b, |
| CompletionCondition completion_condition, asio::error_code& ec) |
| { |
| std::size_t bytes_transferred = write(s, b.data(), completion_condition, ec); |
| b.consume(bytes_transferred); |
| return bytes_transferred; |
| } |
| |
| template <typename SyncWriteStream, typename Allocator> |
| inline std::size_t write(SyncWriteStream& s, |
| asio::basic_streambuf<Allocator>& b) |
| { |
| asio::error_code ec; |
| std::size_t bytes_transferred = write(s, b, transfer_all(), ec); |
| asio::detail::throw_error(ec); |
| return bytes_transferred; |
| } |
| |
| template <typename SyncWriteStream, typename Allocator, |
| typename CompletionCondition> |
| inline std::size_t write(SyncWriteStream& s, |
| asio::basic_streambuf<Allocator>& b, |
| CompletionCondition completion_condition) |
| { |
| asio::error_code ec; |
| std::size_t bytes_transferred = write(s, b, completion_condition, ec); |
| asio::detail::throw_error(ec); |
| return bytes_transferred; |
| } |
| |
| namespace detail |
| { |
| template <typename AsyncWriteStream, typename ConstBufferSequence, |
| typename CompletionCondition, typename WriteHandler> |
| class write_handler |
| { |
| public: |
| typedef asio::detail::consuming_buffers< |
| const_buffer, ConstBufferSequence> buffers_type; |
| |
| write_handler(AsyncWriteStream& stream, const buffers_type& buffers, |
| CompletionCondition completion_condition, WriteHandler handler) |
| : stream_(stream), |
| buffers_(buffers), |
| total_transferred_(0), |
| completion_condition_(completion_condition), |
| handler_(handler) |
| { |
| } |
| |
| void operator()(const asio::error_code& ec, |
| std::size_t bytes_transferred) |
| { |
| total_transferred_ += bytes_transferred; |
| buffers_.consume(bytes_transferred); |
| buffers_.set_max_size(detail::adapt_completion_condition_result( |
| completion_condition_(ec, total_transferred_))); |
| if (buffers_.begin() == buffers_.end()) |
| { |
| handler_(ec, total_transferred_); |
| } |
| else |
| { |
| stream_.async_write_some(buffers_, *this); |
| } |
| } |
| |
| //private: |
| AsyncWriteStream& stream_; |
| buffers_type buffers_; |
| std::size_t total_transferred_; |
| CompletionCondition completion_condition_; |
| WriteHandler handler_; |
| }; |
| |
| template <typename AsyncWriteStream, typename ConstBufferSequence, |
| typename CompletionCondition, typename WriteHandler> |
| inline void* asio_handler_allocate(std::size_t size, |
| write_handler<AsyncWriteStream, ConstBufferSequence, |
| CompletionCondition, WriteHandler>* this_handler) |
| { |
| return asio_handler_alloc_helpers::allocate( |
| size, &this_handler->handler_); |
| } |
| |
| template <typename AsyncWriteStream, typename ConstBufferSequence, |
| typename CompletionCondition, typename WriteHandler> |
| inline void asio_handler_deallocate(void* pointer, std::size_t size, |
| write_handler<AsyncWriteStream, ConstBufferSequence, |
| CompletionCondition, WriteHandler>* this_handler) |
| { |
| asio_handler_alloc_helpers::deallocate( |
| pointer, size, &this_handler->handler_); |
| } |
| |
| template <typename Function, typename AsyncWriteStream, |
| typename ConstBufferSequence, typename CompletionCondition, |
| typename WriteHandler> |
| inline void asio_handler_invoke(const Function& function, |
| write_handler<AsyncWriteStream, ConstBufferSequence, |
| CompletionCondition, WriteHandler>* this_handler) |
| { |
| asio_handler_invoke_helpers::invoke( |
| function, &this_handler->handler_); |
| } |
| } // namespace detail |
| |
| template <typename AsyncWriteStream, typename ConstBufferSequence, |
| typename CompletionCondition, typename WriteHandler> |
| inline void async_write(AsyncWriteStream& s, const ConstBufferSequence& buffers, |
| CompletionCondition completion_condition, WriteHandler handler) |
| { |
| asio::detail::consuming_buffers< |
| const_buffer, ConstBufferSequence> tmp(buffers); |
| |
| asio::error_code ec; |
| std::size_t total_transferred = 0; |
| tmp.set_max_size(detail::adapt_completion_condition_result( |
| completion_condition(ec, total_transferred))); |
| if (tmp.begin() == tmp.end()) |
| { |
| s.get_io_service().post(detail::bind_handler( |
| handler, ec, total_transferred)); |
| return; |
| } |
| |
| s.async_write_some(tmp, |
| detail::write_handler<AsyncWriteStream, ConstBufferSequence, |
| CompletionCondition, WriteHandler>( |
| s, tmp, completion_condition, handler)); |
| } |
| |
| template <typename AsyncWriteStream, typename ConstBufferSequence, |
| typename WriteHandler> |
| inline void async_write(AsyncWriteStream& s, const ConstBufferSequence& buffers, |
| WriteHandler handler) |
| { |
| async_write(s, buffers, transfer_all(), handler); |
| } |
| |
| namespace detail |
| { |
| template <typename AsyncWriteStream, typename Allocator, |
| typename WriteHandler> |
| class write_streambuf_handler |
| { |
| public: |
| write_streambuf_handler(asio::basic_streambuf<Allocator>& streambuf, |
| WriteHandler handler) |
| : streambuf_(streambuf), |
| handler_(handler) |
| { |
| } |
| |
| void operator()(const asio::error_code& ec, |
| std::size_t bytes_transferred) |
| { |
| streambuf_.consume(bytes_transferred); |
| handler_(ec, bytes_transferred); |
| } |
| |
| //private: |
| asio::basic_streambuf<Allocator>& streambuf_; |
| WriteHandler handler_; |
| }; |
| |
| template <typename AsyncWriteStream, typename Allocator, |
| typename WriteHandler> |
| inline void* asio_handler_allocate(std::size_t size, |
| write_streambuf_handler<AsyncWriteStream, |
| Allocator, WriteHandler>* this_handler) |
| { |
| return asio_handler_alloc_helpers::allocate( |
| size, &this_handler->handler_); |
| } |
| |
| template <typename AsyncWriteStream, typename Allocator, |
| typename WriteHandler> |
| inline void asio_handler_deallocate(void* pointer, std::size_t size, |
| write_streambuf_handler<AsyncWriteStream, |
| Allocator, WriteHandler>* this_handler) |
| { |
| asio_handler_alloc_helpers::deallocate( |
| pointer, size, &this_handler->handler_); |
| } |
| |
| template <typename Function, typename AsyncWriteStream, typename Allocator, |
| typename WriteHandler> |
| inline void asio_handler_invoke(const Function& function, |
| write_streambuf_handler<AsyncWriteStream, |
| Allocator, WriteHandler>* this_handler) |
| { |
| asio_handler_invoke_helpers::invoke( |
| function, &this_handler->handler_); |
| } |
| } // namespace detail |
| |
| template <typename AsyncWriteStream, typename Allocator, |
| typename CompletionCondition, typename WriteHandler> |
| inline void async_write(AsyncWriteStream& s, |
| asio::basic_streambuf<Allocator>& b, |
| CompletionCondition completion_condition, WriteHandler handler) |
| { |
| async_write(s, b.data(), completion_condition, |
| detail::write_streambuf_handler< |
| AsyncWriteStream, Allocator, WriteHandler>(b, handler)); |
| } |
| |
| template <typename AsyncWriteStream, typename Allocator, typename WriteHandler> |
| inline void async_write(AsyncWriteStream& s, |
| asio::basic_streambuf<Allocator>& b, WriteHandler handler) |
| { |
| async_write(s, b, transfer_all(), handler); |
| } |
| |
| } // namespace asio |
| |
| #include "asio/detail/pop_options.hpp" |
| |
| #endif // ASIO_WRITE_IPP |