forked from boostorg/beast
Vinnie Falco
a0a335972f
fix #171 Several names and HTTP identifiers are renamed to be more consistent, self-explanatory, and concise: * "Fields" is a collection of HTTP header fields (rfc7230 section 3.2) * "Header" is the Start Line plus Fields. Another way to look at it is, the HTTP message minus the body. * `basic_fields` replaces `basic_headers` * `fields` replaces `headers` * `Fields` replaces `Headers` in template parameter lists * `header` replaces `message_headers` * `header::fields` replaces `message_headers::fields` The changes are cosmetic and do not affect run-time behavior.
76 lines
1.6 KiB
C++
76 lines
1.6 KiB
C++
//
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// Copyright (c) 2013-2016 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_EMPTY_BODY_HPP
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#define BEAST_HTTP_EMPTY_BODY_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/http/resume_context.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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#include <boost/logic/tribool.hpp>
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#include <memory>
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#include <string>
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namespace beast {
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namespace http {
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/** An empty content-body.
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Meets the requirements of @b `Body`.
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*/
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struct empty_body
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{
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#if GENERATING_DOCS
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/// The type of the `message::body` member
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using value_type = void;
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#else
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struct value_type {};
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#endif
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#if GENERATING_DOCS
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private:
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#endif
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struct writer
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{
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template<bool isRequest, class Fields>
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explicit
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writer(message<isRequest, empty_body, Fields> const& m) noexcept
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{
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beast::detail::ignore_unused(m);
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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 0;
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}
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template<class WriteFunction>
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boost::tribool
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write(resume_context&&, error_code&,
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WriteFunction&& wf) noexcept
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{
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wf(boost::asio::null_buffers{});
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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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