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Refactor beast core, http, tests, and examples:
* Fix warnings * Port cmake scripts to linux * Add command line options for running test suites * Add examples to CMakeLists * Return std::uint64_t from writer::content_length * basic_parser::write takes asio::const_buffer instead of pointer and size * Turn message test back on now that it passes * Rename to http::headers, use std::allocator, remove http_headers * http::message::method is now a string * Refactor to_string for ConstBufferSequence * Remove chunk_encode from the public interface * Initialize members for default constructed iterators * Disallow default construction for dependent buffer sequences Refactor http::message serialization: * Serialization no longer creates a copy of the headers and modifies them * New function prepare(), sets Connection, Transfer-Encoding, Content-Length based on the body attributes and caller options. Callers can use prepare() to have the fields set automatically, or they can set the fields manually. * Use write for operator<< * Tests for serialization
This commit is contained in:
Vinnie Falco
192
examples/websocket_sync_echo_peer.hpp
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192
examples/websocket_sync_echo_peer.hpp
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//------------------------------------------------------------------------------
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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_WSPROTO_SYNC_ECHO_PEER_H_INCLUDED
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#define BEAST_WSPROTO_SYNC_ECHO_PEER_H_INCLUDED
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#include <beast/streambuf.hpp>
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#include <beast/websocket.hpp>
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#include <boost/optional.hpp>
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#include <functional>
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#include <iostream>
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#include <memory>
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#include <thread>
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namespace beast {
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namespace websocket {
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// Synchronous WebSocket echo client/server
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//
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class sync_echo_peer
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{
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public:
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using error_code = boost::system::error_code;
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using endpoint_type = boost::asio::ip::tcp::endpoint;
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using address_type = boost::asio::ip::address;
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using socket_type = boost::asio::ip::tcp::socket;
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private:
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boost::asio::io_service ios_;
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socket_type sock_;
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boost::asio::ip::tcp::acceptor acceptor_;
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std::thread thread_;
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public:
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sync_echo_peer(bool server, endpoint_type ep)
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: sock_(ios_)
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, acceptor_(ios_)
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{
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error_code ec;
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acceptor_.open(ep.protocol(), ec);
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maybe_throw(ec, "open");
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acceptor_.bind(ep, ec);
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maybe_throw(ec, "bind");
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acceptor_.listen(
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boost::asio::socket_base::max_connections, ec);
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maybe_throw(ec, "listen");
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acceptor_.async_accept(sock_,
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std::bind(&sync_echo_peer::on_accept, this,
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beast::asio::placeholders::error));
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thread_ = std::thread{[&]{ ios_.run(); }};
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}
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~sync_echo_peer()
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{
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error_code ec;
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ios_.dispatch(
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[&]{ acceptor_.close(ec); });
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thread_.join();
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}
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private:
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static
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void
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fail(error_code ec, std::string what)
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{
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std::cerr <<
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what << ": " << ec.message() << std::endl;
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}
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static
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void
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fail(int id, error_code ec, std::string what)
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{
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std::cerr << "#" << std::to_string(id) << " " <<
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what << ": " << ec.message() << std::endl;
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}
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static
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void
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maybe_throw(error_code ec, std::string what)
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{
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if(ec)
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{
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fail(ec, what);
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throw ec;
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}
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}
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struct lambda
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{
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int id;
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sync_echo_peer& self;
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socket_type sock;
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boost::asio::io_service::work work;
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lambda(int id_, sync_echo_peer& self_,
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socket_type&& sock_)
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: id(id_)
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, self(self_)
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, sock(std::move(sock_))
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, work(sock.get_io_service())
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{
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}
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void operator()()
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{
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self.do_peer(id, std::move(sock));
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}
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};
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void
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on_accept(error_code ec)
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{
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if(ec == boost::asio::error::operation_aborted)
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return;
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maybe_throw(ec, "accept");
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static int id_ = 0;
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std::thread{lambda{++id_, *this, std::move(sock_)}}.detach();
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acceptor_.async_accept(sock_,
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std::bind(&sync_echo_peer::on_accept, this,
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beast::asio::placeholders::error));
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}
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struct identity
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{
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template<class Body, class Headers>
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void
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operator()(http::message<true, Body, Headers>& req)
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{
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req.headers.replace("User-Agent", "sync_echo_client");
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}
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template<class Body, class Headers>
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void
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operator()(http::message<false, Body, Headers>& resp)
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{
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resp.headers.replace("Server", "sync_echo_server");
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}
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};
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void
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do_peer(int id, socket_type&& sock)
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{
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websocket::stream<socket_type> ws(std::move(sock));
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ws.set_option(decorate(identity{}));
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ws.set_option(read_message_max(64 * 1024 * 1024));
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error_code ec;
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ws.accept(ec);
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if(ec)
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{
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fail(id, ec, "accept");
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return;
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}
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for(;;)
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{
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websocket::opcode op;
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beast::streambuf sb;
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ws.read(op, sb, ec);
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if(ec)
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break;
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ws.set_option(websocket::message_type(op));
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ws.write(sb.data(), ec);
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if(ec)
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break;
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}
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if(ec && ec != websocket::error::closed)
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{
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fail(id, ec, "read");
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}
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}
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};
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} // websocket
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} // beast
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#endif
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