/// <summary>
/// Starts listening for incoming connections
/// </summary>
public void Listen()
{
_listenSocket.Listen(_backlog);
while (true)
{
try
{
var socket = _listenSocket.Accept();
var ea = new IncomingConnectionEventArgs {
Socket = socket
};
using (new PerfLimit("Tcp connection listener connection handle"))
OnIncomingConnection(ea);
if (!ea.Handled)
{
Logger.Warn("Closing non-handled connection {0}", socket.RemoteEndPoint);
using (new PerfLimit("Tcp connection listener close"))
socket.Close();
}
}
catch (ObjectDisposedException)
{
return;
}
catch (SocketException e)
{
OnException(new ExceptionEventArgs {
Exception = e
});
}
}
}
public void OnIncomingConnection(IncomingConnectionEventArgs e)
{
var handler = IncomingConnection;
if (handler != null)
{
handler(this, e);
}
}
void _listener_IncomingConnection(object sender, IncomingConnectionEventArgs e)
{
Logger.Info("Incoming connection");
var connection = new HyperServerConnection(e.Socket);
connection.Handshake += connection_Handshake;
connection.ConnectionStatusChanged += connection_ConnectionStatusChanged;
lock (_unknownConnections)
_unknownConnections.Add(connection);
connection.StartAsync();
e.Handled = true;
}
protected void OnIncomingConnection(IAsyncResult ar)
{
try
{
var s = (Socket)ar.AsyncState;
var incomingSocket = s.EndAccept(ar);
var ea = new IncomingConnectionEventArgs {
Socket = incomingSocket
};
OnIncomingConnection(ea);
if (!ea.Handled)
{
incomingSocket.BeginDisconnect(false, null, null);
}
// continue accepting
AcceptNext(s);
}
catch (ObjectDisposedException)
{
}
catch (SocketException e)
{
OnException(new ExceptionEventArgs {
Exception = e
});
// try to continue listening
try
{
var s = (Socket)ar.AsyncState;
AcceptNext(s);
}
catch (Exception x)
{
OnException(new ExceptionEventArgs {
Exception = x
});
}
}
}