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/*
* Copyright (c) 2017 Cisco and/or its affiliates.
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "websocket-server.h"
WebSocketServer::WebSocketServer(unsigned short port)
: m_isRunning(false)
{
try {
// Initialize Asio
server.init_asio();
// Set reuse address option
server.set_reuse_addr(true);
// Register our message handler
server.set_message_handler(bind(&WebSocketServer::onMessage, this, &server, ::_1, ::_2));
// Listen on port
server.listen(boost::asio::ip::tcp::v4(),port);
} catch (websocketpp::exception const & e) {
std::cout << e.what() << std::endl;
} catch (...) {
std::cout << "Exception occurred.." << std::endl;
}
}
void
WebSocketServer::setHandler(const HandlerFunction &handler)
{
this->handler = handler;
}
void
WebSocketServer::start()
{
m_isRunning = true;
int retries = 5;
while (m_isRunning && retries > 0) {
try {
// Start the server accept loop
server.start_accept();
//Set interrupt callbacks
boost::asio::io_service io_service;
boost::asio::signal_set signals(server.get_io_service(), SIGINT, SIGQUIT);
signals.async_wait([this](const boost::system::error_code &errorCode, int) {
std::cout << "Gracefully terminating websocket server" << std::endl;
this->m_isRunning = false;
this->server.stop();
});
// Start the ASIO io_service run loop
server.run();
} catch (websocketpp::exception const &e) {
std::cout << e.what() << std::endl;
}
catch (...) {
std::cout << "Exception occurred.." << std::endl;
}
retries--;
}
}
void
WebSocketServer::onMessage(Server *s, websocketpp::connection_hdl hdl, message_ptr msg)
{
try {
handler(s, hdl, msg, (uint8_t *) msg->get_payload().c_str(), msg->get_payload().size());
} catch (const websocketpp::lib::error_code &e) {
std::cout << "Reply sent failed because: " << e
<< "(" << e.message() << ")" << std::endl;
}
}
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