ceph/src/Beast/examples/websocket_example.cpp

   1 //
   2 // Copyright (c) 2013-2017 Vinnie Falco (vinnie dot falco at gmail dot com)
   3 //
   4 // Distributed under the Boost Software License, Version 1.0. (See accompanying
   5 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
   6 //
   7
   8 #include <beast/core/to_string.hpp>
   9 #include <beast/websocket.hpp>
  10 #include <boost/asio.hpp>
  11 #include <iostream>
  12 #include <string>
  13
  14 int main()
  15 {
  16     // Normal boost::asio setup
  17     std::string const host = "echo.websocket.org";
  18     boost::asio::io_service ios;
  19     boost::asio::ip::tcp::resolver r{ios};
  20     boost::asio::ip::tcp::socket sock{ios};
  21     boost::asio::connect(sock,
  22         r.resolve(boost::asio::ip::tcp::resolver::query{host, "80"}));
  23
  24     // WebSocket connect and send message using beast
  25     beast::websocket::stream<boost::asio::ip::tcp::socket&> ws{sock};
  26     ws.handshake(host, "/");
  27     ws.write(boost::asio::buffer(std::string("Hello, world!")));
  28
  29     // Receive WebSocket message, print and close using beast
  30     beast::streambuf sb;
  31     beast::websocket::opcode op;
  32     ws.read(op, sb);
  33     ws.close(beast::websocket::close_code::normal);
  34     std::cout << beast::to_string(sb.data()) << "\n";
  35 }