step2.cpp

/*
 * Copyright (c) 2015, Peter Thorson. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *     * Redistributions of source code must retain the above copyright
 *       notice, this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above copyright
 *       notice, this list of conditions and the following disclaimer in the
 *       documentation and/or other materials provided with the distribution.
 *     * Neither the name of the WebSocket++ Project nor the
 *       names of its contributors may be used to endorse or promote products
 *       derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL PETER THORSON BE LIABLE FOR ANY
 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
 
// **NOTE:** This file is a snapshot of the WebSocket++ utility server tutorial.
// Additional related material can be found in the tutorials/utility_server
// directory of the WebSocket++ repository.
 
// The ASIO_STANDALONE define is necessary to use the standalone version of Asio.
// Remove if you are using Boost Asio.
#define ASIO_STANDALONE
 
#include <websocketpp/config/asio_no_tls.hpp>
#include <websocketpp/server.hpp>
 
#include <functional>
 
typedef websocketpp::server<websocketpp::config::asio> server;
 
class utility_server {
public:
    utility_server() {
         // Set logging settings
        m_endpoint.set_error_channels(websocketpp::log::elevel::all);
        m_endpoint.set_access_channels(websocketpp::log::alevel::all ^ websocketpp::log::alevel::frame_payload);
 
        // Initialize Asio
        m_endpoint.init_asio();
 
        // Set the default message handler to the echo handler
        m_endpoint.set_message_handler(std::bind(
            &utility_server::echo_handler, this,
            std::placeholders::_1, std::placeholders::_2
        ));
    }
 
    void echo_handler(websocketpp::connection_hdl hdl, server::message_ptr msg) {
        // write a new message
        m_endpoint.send(hdl, msg->get_payload(), msg->get_opcode());
    }
 
    void run() {
        // Listen on port 9002
        m_endpoint.listen(9002);
 
        // Queues a connection accept operation
        m_endpoint.start_accept();
 
        // Start the Asio io_context run loop
        m_endpoint.run();
    }
private:
    server m_endpoint;
};
 
int main() {
    utility_server s;
    s.run();
    return 0;
}