forked from boostorg/beast
Vinnie Falco
e8be3fd7d3
fix #123 fix #154 fix #265 This completely replaces the HTTP parser used to read and parse incoming messages. The new version is faster than the old one, and written in fewer lines. A summary of changes: * parse and async_parse renamed to read and async_read * basic_parser is optimized for linear buffers, use flat_streambuf for the best performance with these functions: - http::read - http::read_some - http::async_read - http::async_read_some * The overloads of read() and async_read() which take just a header have been removed, since they would throw away important parse metadata. * The derived class callbacks for basic_parser have been streamlined. All strings passed to callbacks are presented in their entirety, instead of being provided in pieces. These changes allow use-cases that were previously difficult or impossible, such as: - Efficient relaying - Late body type commitment - Expect: 100-continue handling
119 lines
2.3 KiB
C++
119 lines
2.3 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_HTTP_BASIC_DYNABUF_BODY_HPP
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#define BEAST_HTTP_BASIC_DYNABUF_BODY_HPP
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#include <beast/config.hpp>
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#include <beast/core/error.hpp>
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#include <beast/http/message.hpp>
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#include <beast/core/detail/type_traits.hpp>
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#include <boost/asio/buffer.hpp>
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namespace beast {
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namespace http {
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/** A message body represented by a @b `DynamicBuffer`
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Meets the requirements of @b `Body`.
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*/
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template<class DynamicBuffer>
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struct basic_dynabuf_body
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{
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/// The type of the `message::body` member
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using value_type = DynamicBuffer;
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#if BEAST_DOXYGEN
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private:
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#endif
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class reader
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{
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value_type& body_;
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public:
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static bool constexpr is_direct = true;
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using mutable_buffers_type =
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typename DynamicBuffer::mutable_buffers_type;
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template<bool isRequest, class Fields>
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explicit
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reader(message<isRequest,
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basic_dynabuf_body, Fields>& msg)
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: body_(msg.body)
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{
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}
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void
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init()
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{
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}
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void
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init(std::uint64_t content_length)
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{
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}
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mutable_buffers_type
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prepare(std::size_t n)
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{
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return body_.prepare(n);
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}
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void
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commit(std::size_t n)
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{
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body_.commit(n);
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}
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void
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finish()
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{
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}
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};
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class writer
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{
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DynamicBuffer const& body_;
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public:
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template<bool isRequest, class Fields>
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explicit
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writer(message<
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isRequest, basic_dynabuf_body, Fields> const& m) noexcept
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: body_(m.body)
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{
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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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beast::detail::ignore_unused(ec);
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}
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std::uint64_t
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content_length() const noexcept
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{
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return body_.size();
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}
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template<class WriteFunction>
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bool
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write(error_code&, WriteFunction&& wf) noexcept
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{
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wf(body_.data());
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return true;
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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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