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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 (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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