private void StartListening()
{
try
{
IPEndPoint endPoint = new IPEndPoint(IPAddress.Parse(connectionParameter.Address), connectionParameter.TcpPort);
listener = new TcpListener(endPoint);
listener.Start();
listener.BeginAcceptTcpClient(new AsyncCallback(DoAcceptTcpClientCallback), this);
}
catch (SocketException se)
{
Trace.TraceError("SocketException in StartListening(). Stack trace:\n{0}\n", se.StackTrace);
ClientErrorEventArgs args = new ClientErrorEventArgs()
{
ErrorCode = ClientErrorEventArgs.CONNECTION_ERROR
};
socketBroadcast.Close();
workerBroadcast.CancelAsync();
connection.ClientErrorMessageReceived(args);
connection.CloseConnectionMessageRecived();
}
}
void controlConnectionListener_RunWorkerCompleted(object sender, RunWorkerCompletedEventArgs e)
{
//Interrompo gli altri thread
ClientErrorEventArgs args = null;
switch (innerState)
{
case InnerState.STOP_BY_NETWORK_ERROR:
connection.State = null;
args = new ClientErrorEventArgs()
{
ErrorCode = ClientErrorEventArgs.NETWORK_ERROR
};
connection.ClientErrorMessageReceived(args);
if (tcpControlConnection != null)
{
stream.Close();
tcpControlConnection.Close();
}
connection.CloseConnectionMessageRecived();
return;
case InnerState.STOP_BY_ERROR:
connection.State = null;
args = new ClientErrorEventArgs()
{
ErrorCode = ClientErrorEventArgs.CLIENT_ERROR
};
connection.ClientErrorMessageReceived(args);
if (tcpControlConnection != null)
{
stream.Close();
tcpControlConnection.Close();
}
connection.CloseConnectionMessageRecived();
return;
case InnerState.STOP_BY_USER:
connection.State = null;
if (tcpControlConnection != null)
{
stream.Close();
tcpControlConnection.Close();
}
connection.CloseConnectionMessageRecived();
return;
}
if (e.Error == null && e.Result != null)
{
string result = (string)e.Result;
switch (result)
{
case ACTIVE_RESULT:
//cambio lo stato in connesso
connection.State = NextState(State.ACTIVE);
connection.ActiveClientMessageRecived();
break;
case CLOSE_RESULT:
//passo allo stato disconnected
innerState = InnerState.STOP_BY_CONTROLLER;
connection.State = NextState(State.DISCONNECTED);
connection.DisconnectClientMessageRecived();
if (tcpControlConnection != null)
{
stream.Close();
tcpControlConnection.Close();
}
break;
case EXTERNAL_CLOSE_RESULT: //Questo caso non dovrebbe accadere
try
{
if (stream != null)
{
WriteMessage(stream, TipoComandoBytes.CLOSE_CONNECTION, 0, COMMAND_LENGHT);
}
}
catch (Exception ex)
{
Trace.TraceError("Exception in controlConnectionListener_RunWorkerComplited(). Stack trace:\n{0}\n", ex.StackTrace);
if (!(ex is NetworkException || ex is IOException || ex is SocketException))
{
throw;
}
}
finally
{
if (tcpControlConnection != null)
{
stream.Close();
tcpControlConnection.Close();
}
connection.CloseConnectionMessageRecived();
}
break;
case NETWORK_ERROR_RESULT:
innerState = InnerState.STOP_BY_NETWORK_ERROR;
connection.State = null;
args = new ClientErrorEventArgs()
{
ErrorCode = ClientErrorEventArgs.NETWORK_ERROR
};
connection.ClientErrorMessageReceived(args);
if (tcpControlConnection != null)
{
stream.Close();
tcpControlConnection.Close();
}
connection.CloseConnectionMessageRecived();
break;
case CLIENT_ERROR_RESULT:
innerState = InnerState.STOP_BY_ERROR;
connection.State = null;
args = new ClientErrorEventArgs()
{
ErrorCode = ClientErrorEventArgs.CLIENT_ERROR
};
connection.ClientErrorMessageReceived(args);
if (tcpControlConnection != null)
{
stream.Close();
tcpControlConnection.Close();
}
connection.CloseConnectionMessageRecived();
break;
case GENERIC_ERROR_RESULT:
innerState = InnerState.STOP_BY_ERROR;
connection.State = null;
args = new ClientErrorEventArgs()
{
ErrorCode = ClientErrorEventArgs.GENERIC_ERROR
};
connection.ClientErrorMessageReceived(args);
if (tcpControlConnection != null)
{
stream.Close();
tcpControlConnection.Close();
}
connection.CloseConnectionMessageRecived();
break;
}
}
}