/// <summary>
/// Starts listening for and accepting network connections.
/// </summary>
public static void beginNetworkOperations()
{
if (netControllerThread != null)
{
// already running
Logging.info("Network server thread is already running.");
return;
}
if (IxianHandler.publicPort <= 0 || IxianHandler.publicPort > 65535)
{
Logging.error("Cannot start network server, public port is invalid");
return;
}
if (CoreConfig.preventNetworkOperations)
{
Logging.warn("Not starting NetworkClientManager thread due to preventNetworkOperations flag being set.");
return;
}
TLC = new ThreadLiveCheck();
netControllerThread = new Thread(networkOpsLoop);
netControllerThread.Name = "Network_Server_Controller_Thread";
connectedClients = new List <RemoteEndpoint>();
continueRunning = true;
// Read the server port from the configuration
NetOpsData nod = new NetOpsData();
nod.listenAddress = new IPEndPoint(IPAddress.Any, IxianHandler.publicPort);
netControllerThread.Start(nod);
Logging.info(string.Format("Public network node address: {0} port {1}", IxianHandler.publicIP, IxianHandler.publicPort));
}
private static void networkOpsLoop(object data)
{
if (data is NetOpsData)
{
try
{
NetOpsData netOpsData = (NetOpsData)data;
listener = new TcpListener(netOpsData.listenAddress);
listener.Start();
}
catch (Exception e)
{
Logging.error(string.Format("Exception starting server: {0}", e.ToString()));
return;
}
}
else
{
Logging.error(String.Format("NetworkServer.networkOpsLoop called with incorrect data object. Expected 'NetOpsData', got '{0}'", data.GetType().ToString()));
return;
}
// housekeeping tasks
while (continueRunning)
{
TLC.Report();
try
{
handleDisconnectedClients();
}catch (Exception e)
{
Logging.error("Fatal exception occured in NetworkServer.networkOpsLoop: " + e);
}
// Use a blocking mechanism
try
{
Socket handlerSocket = listener.AcceptSocket();
acceptConnection(handlerSocket);
}
catch (SocketException)
{
// Could be an interupt request
}
catch (Exception)
{
if (continueRunning)
{
Logging.error("Exception occured in network server while trying to accept socket connection.");
restartNetworkOperations();
}
return;
}
// Sleep to prevent cpu usage
Thread.Sleep(100);
}
Logging.info("Server listener thread ended.");
}
