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Diffstat (limited to 'src/boost/libs/beast/example/websocket/server/sync/websocket_server_sync.cpp')
-rw-r--r-- | src/boost/libs/beast/example/websocket/server/sync/websocket_server_sync.cpp | 121 |
1 files changed, 121 insertions, 0 deletions
diff --git a/src/boost/libs/beast/example/websocket/server/sync/websocket_server_sync.cpp b/src/boost/libs/beast/example/websocket/server/sync/websocket_server_sync.cpp new file mode 100644 index 000000000..2f75c468e --- /dev/null +++ b/src/boost/libs/beast/example/websocket/server/sync/websocket_server_sync.cpp @@ -0,0 +1,121 @@ +// +// Copyright (c) 2016-2019 Vinnie Falco (vinnie dot falco at gmail dot com) +// +// Distributed under the Boost Software License, Version 1.0. (See accompanying +// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) +// +// Official repository: https://github.com/boostorg/beast +// + +//------------------------------------------------------------------------------ +// +// Example: WebSocket server, synchronous +// +//------------------------------------------------------------------------------ + +#include <boost/beast/core.hpp> +#include <boost/beast/websocket.hpp> +#include <boost/asio/ip/tcp.hpp> +#include <cstdlib> +#include <functional> +#include <iostream> +#include <string> +#include <thread> + +namespace beast = boost::beast; // from <boost/beast.hpp> +namespace http = beast::http; // from <boost/beast/http.hpp> +namespace websocket = beast::websocket; // from <boost/beast/websocket.hpp> +namespace net = boost::asio; // from <boost/asio.hpp> +using tcp = boost::asio::ip::tcp; // from <boost/asio/ip/tcp.hpp> + +//------------------------------------------------------------------------------ + +// Echoes back all received WebSocket messages +void +do_session(tcp::socket& socket) +{ + try + { + // Construct the stream by moving in the socket + websocket::stream<tcp::socket> ws{std::move(socket)}; + + // Set a decorator to change the Server of the handshake + ws.set_option(websocket::stream_base::decorator( + [](websocket::response_type& res) + { + res.set(http::field::server, + std::string(BOOST_BEAST_VERSION_STRING) + + " websocket-server-sync"); + })); + + // Accept the websocket handshake + ws.accept(); + + for(;;) + { + // This buffer will hold the incoming message + beast::flat_buffer buffer; + + // Read a message + ws.read(buffer); + + // Echo the message back + ws.text(ws.got_text()); + ws.write(buffer.data()); + } + } + catch(beast::system_error const& se) + { + // This indicates that the session was closed + if(se.code() != websocket::error::closed) + std::cerr << "Error: " << se.code().message() << std::endl; + } + catch(std::exception const& e) + { + std::cerr << "Error: " << e.what() << std::endl; + } +} + +//------------------------------------------------------------------------------ + +int main(int argc, char* argv[]) +{ + try + { + // Check command line arguments. + if (argc != 3) + { + std::cerr << + "Usage: websocket-server-sync <address> <port>\n" << + "Example:\n" << + " websocket-server-sync 0.0.0.0 8080\n"; + return EXIT_FAILURE; + } + auto const address = net::ip::make_address(argv[1]); + auto const port = static_cast<unsigned short>(std::atoi(argv[2])); + + // The io_context is required for all I/O + net::io_context ioc{1}; + + // The acceptor receives incoming connections + tcp::acceptor acceptor{ioc, {address, port}}; + for(;;) + { + // This will receive the new connection + tcp::socket socket{ioc}; + + // Block until we get a connection + acceptor.accept(socket); + + // Launch the session, transferring ownership of the socket + std::thread{std::bind( + &do_session, + std::move(socket))}.detach(); + } + } + catch (const std::exception& e) + { + std::cerr << "Error: " << e.what() << std::endl; + return EXIT_FAILURE; + } +} |