external_io_service.cpp
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/*
* 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.
*/
#include "tcp_echo_server.hpp"
#include <websocketpp/config/asio_no_tls.hpp>
#include <websocketpp/server.hpp>
#include <iostream>
using websocketpp::lib::placeholders::_1;
using websocketpp::lib::placeholders::_2;
using websocketpp::lib::bind;
typedef websocketpp::server<websocketpp::config::asio> ws_echo_server;
// Define a callback to handle incoming messages
void on_message(ws_echo_server* s, websocketpp::connection_hdl hdl, ws_echo_server::message_ptr msg) {
std::cout << "on_message called with hdl: " << hdl.lock().get()
<< " and message: " << msg->get_payload()
<< std::endl;
// check for a special command to instruct the server to stop listening so
// it can be cleanly exited.
if (msg->get_payload() == "stop-listening") {
s->stop_listening();
return;
}
try {
s->send(hdl, msg->get_payload(), msg->get_opcode());
} catch (websocketpp::exception const & e) {
std::cout << "Echo failed because: "
<< "(" << e.what() << ")" << std::endl;
}
}
int main() {
asio::io_service service;
// Add a TCP echo server on port 9003
tcp_echo_server custom_http_server(service, 9003);
// Add a WebSocket echo server on port 9002
ws_echo_server ws_server;
ws_server.set_access_channels(websocketpp::log::alevel::all);
ws_server.clear_access_channels(websocketpp::log::alevel::frame_payload);
// The only difference in this code between an internal and external
// io_service is the different constructor to init_asio
ws_server.init_asio(&service);
// Register our message handler
ws_server.set_message_handler(bind(&on_message,&ws_server,::_1,::_2));
ws_server.listen(9002);
ws_server.start_accept();
// TODO: add a timer?
// Start the Asio io_service run loop for all
service.run();
}