mirror of
https://github.com/Xahau/xahaud.git
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db7b65ed42
* Fix sig_wait
* Fix websocket strict aliasing warning
* Fix invokable strict aliasing
* Silence fread warning in examples
* Silence integer conversion warnings
* Build parser-bench as test
* Disable unused variable warning for asio:
Caused by static variables declared in <boost/asio/error.hpp>
No known workaround.
96 lines
2.8 KiB
C++
96 lines
2.8 KiB
C++
//------------------------------------------------------------------------------
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/*
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This file is part of Beast: https://github.com/vinniefalco/Beast
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Copyright 2013, Vinnie Falco <vinnie.falco@gmail.com>
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Permission to use, copy, modify, and/or distribute this software for any
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purpose with or without fee is hereby granted, provided that the above
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copyright notice and this permission notice appear in all copies.
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THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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ANY SPECIAL , DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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//==============================================================================
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#ifndef BEAST_EXAMPLE_FILE_BODY_H_INCLUDED
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#define BEAST_EXAMPLE_FILE_BODY_H_INCLUDED
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#include <beast/http/message.hpp>
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#include <beast/http/resume_context.hpp>
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#include <boost/asio/buffer.hpp>
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#include <boost/filesystem.hpp>
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#include <cstdio>
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#include <cstdint>
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namespace beast {
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namespace http {
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struct file_body
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{
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using value_type = std::string;
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class writer
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{
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std::size_t size_;
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std::size_t offset_ = 0;
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std::string const& path_;
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FILE* file_ = nullptr;
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char buf_[4096];
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std::size_t buf_len_;
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public:
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static bool constexpr is_single_pass = false;
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template<bool isRequest, class Headers>
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writer(message<isRequest, file_body, Headers> const& m) noexcept
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: path_(m.body)
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{
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}
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~writer()
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{
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if(file_)
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fclose(file_);
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}
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void
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init(error_code& ec) noexcept
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{
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file_ = fopen(path_.c_str(), "rb");
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if(! file_)
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ec = boost::system::errc::make_error_code(
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static_cast<boost::system::errc::errc_t>(errno));
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else
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size_ = boost::filesystem::file_size(path_);
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}
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std::size_t
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content_length() const
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{
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return size_;
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}
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template<class Write>
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boost::tribool
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operator()(resume_context&&, error_code&, Write&& write)
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{
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buf_len_ = std::min(size_ - offset_, sizeof(buf_));
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auto const nread = fread(buf_, 1, sizeof(buf_), file_);
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(void)nread;
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offset_ += buf_len_;
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write(boost::asio::buffer(buf_, buf_len_));
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return offset_ >= size_;
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}
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};
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};
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} // http
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} // beast
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#endif
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