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6d5547a Set version to 1.0.0-b34 6fab138 Fix and tidy up CMake build scripts: ccefa54 Set version to 1.0.0-b33 32afe41 Set internal state correctly when writing frames: fe3e20b Add write_frames unit test 578dcd0 Add decorator unit test aaa3733 Use fwrite return value in file_body df66165 Require Visual Studio 2015 Update 3 or later b8e5a21 Set version to 1.0.0-b32 ffb1758 Update CMake scripts for finding packages: b893749 Remove http Writer suspend and resume feature (API Change): 27864fb Add io_service completion invariants tests eba05a7 Set version to 1.0.0-b31 484bcef Fix badge markdown in README.md 5663bea Add missing dynabuf_readstream member 0d7a551 Tidy up build settings 0fd4030 Move the handler, don't copy it git-subtree-dir: src/beast git-subtree-split: 6d5547a32c50ec95832c4779311502555ab0ee1f
94 lines
2.2 KiB
C++
94 lines
2.2 KiB
C++
//
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// Copyright (c) 2013-2017 Vinnie Falco (vinnie dot falco at gmail dot com)
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//
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// Distributed under the Boost Software License, Version 1.0. (See accompanying
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// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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//
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#ifndef BEAST_DETAIL_SYNC_OSTREAM_HPP
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#define BEAST_DETAIL_SYNC_OSTREAM_HPP
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#include <beast/core/buffer_concepts.hpp>
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#include <beast/core/error.hpp>
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#include <boost/asio/buffer.hpp>
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#include <ostream>
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namespace beast {
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namespace detail {
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/** A SyncWriteStream which outputs to a `std::ostream`
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Objects of this type meet the requirements of @b SyncWriteStream.
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*/
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class sync_ostream
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{
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std::ostream& os_;
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public:
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/** Construct the stream.
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@param os The associated `std::ostream`. All buffers
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written will be passed to the associated output stream.
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*/
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sync_ostream(std::ostream& os)
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: os_(os)
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{
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}
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template<class ConstBufferSequence>
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std::size_t
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write_some(ConstBufferSequence const& buffers);
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template<class ConstBufferSequence>
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std::size_t
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write_some(ConstBufferSequence const& buffers,
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error_code& ec);
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};
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template<class ConstBufferSequence>
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std::size_t
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sync_ostream::
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write_some(ConstBufferSequence const& buffers)
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{
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static_assert(
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is_ConstBufferSequence<ConstBufferSequence>::value,
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"ConstBufferSequence requirements not met");
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error_code ec;
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auto const n = write_some(buffers, ec);
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if(ec)
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throw system_error{ec};
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return n;
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}
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template<class ConstBufferSequence>
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std::size_t
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sync_ostream::
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write_some(ConstBufferSequence const& buffers,
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error_code& ec)
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{
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static_assert(
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is_ConstBufferSequence<ConstBufferSequence>::value,
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"ConstBufferSequence requirements not met");
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std::size_t n = 0;
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using boost::asio::buffer_cast;
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using boost::asio::buffer_size;
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for(auto const& buffer : buffers)
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{
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os_.write(buffer_cast<char const*>(buffer),
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buffer_size(buffer));
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if(os_.fail())
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{
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ec = errc::make_error_code(
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errc::no_stream_resources);
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break;
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}
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n += buffer_size(buffer);
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}
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return n;
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}
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} // detail
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} // beast
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#endif
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