void ICommunicationOwner.OnTunnelingClosing(CommunicationSubType communicationSubType, Exception exception)
{
switch (communicationSubType)
{
case CommunicationSubType.Session:
// log
if (exception != null)
{
LogError($"Error: {exception.Message}");
}
LogVerbose("Closing tunneling mode.");
break;
case CommunicationSubType.UpStream:
case CommunicationSubType.DownStream:
string direction = communicationSubType.ToString();
if (exception != null)
{
// terminate the communication
StopCommunication();
// decide error severity
Tuple <TraceEventType, string> logContent = GetLogContent(exception);
// log
Log(logContent.Item1, $"Error in {direction} tunneling: {logContent.Item2}");
}
else
{
// shutdown the communication of another direction
bool downStream = (communicationSubType == CommunicationSubType.DownStream);
lock (this.instanceLocker) {
if (this.server.IsConnecting)
{
Socket socket = this.server.Socket;
socket.Shutdown(downStream ? SocketShutdown.Receive : SocketShutdown.Send);
}
if (this.client != null)
{
Socket socket = this.client.Client;
socket.Shutdown(downStream ? SocketShutdown.Send : SocketShutdown.Receive);
}
}
}
LogVerbose($"Closing {communicationSubType.ToString()} tunneling.");
break;
}
}
void ICommunicationOwner.OnTunnelingStarted(CommunicationSubType communicationSubType)
{
// log
switch (communicationSubType)
{
case CommunicationSubType.Session:
LogVerbose("Started tunneling mode.");
break;
case CommunicationSubType.UpStream:
case CommunicationSubType.DownStream:
LogVerbose($"Started {communicationSubType.ToString()} tunneling.");
break;
}
return;
}