private EventHandlerEvent GetSession(string aSubscriptionId)
{
lock (iSessions)
{
EventHandlerEvent session = null;
iSessions.TryGetValue(aSubscriptionId, out session);
return(session);
}
}
public void AddSession(string aSubscriptionId, EventHandlerEvent aDelegate)
{
lock (iSessions)
{
try
{
Trace.WriteLine(Trace.kUpnp, "Event Session+ " + aSubscriptionId);
iSessions.Add(aSubscriptionId, aDelegate);
}
catch (ArgumentException)
{
// Session already exists - replace the old one with the new one
iSessions.Remove(aSubscriptionId);
iSessions.Add(aSubscriptionId, aDelegate);
}
}
}
public Event(EventRequest aRequest, EventHandlerEvent aHandler)
{
Request = aRequest;
Handler = aHandler;
}
private void RunNetwork()
{
Trace.WriteLine(Trace.kUpnp, "EventServerUpnp.RunNetwork() started");
try
{
while (!iThreadNetworkAbort)
{
try
{
TcpSessionStream sessionStream = new TcpSessionStream();
// listen for new incoming event
iServer.Accept(sessionStream);
lock (iActiveSessionStreams)
{
iActiveSessionStreams.Add(sessionStream);
}
// set the timeout for the call to receive - this prevents event server
// threads from getting indefinitely blocked by remote clients
sessionStream.ReceiveTimeout = 30 * 1000;
iScheduler.Schedule((aObject) =>
{
TcpSessionStream aSessionStream = aObject[0] as TcpSessionStream;
if (!iThreadNetworkAbort)
{
Srb readBuffer = new Srb(kMaxReadBufferBytes, aSessionStream);
Swb writeBuffer = new Swb(kMaxWriteBufferBytes, aSessionStream);
try
{
// read the event request
EventRequest request = new EventRequest();
request.Read(readBuffer);
// get the session for this subscription ID
EventHandlerEvent session = null;
if (request.SubscriptionId != null)
{
session = GetSession(request.SubscriptionId);
if (session == null)
{
// Wait 500mS and try again
Trace.WriteLine(Trace.kUpnp, "EventServerUpnpScheduler: Early Event! " + request.SubscriptionId);
Thread.Sleep(500);
session = GetSession(request.SubscriptionId);
}
}
// send the event response
request.WriteResponse(writeBuffer, (session != null));
// add event to be handled
if (session != null)
{
Event ev = new Event(request, session);
iEventFifo.Push(ev);
}
}
catch (HttpError e)
{
Trace.WriteLine(Trace.kUpnp, "EventServerUpnpScheduler HttpError: " + e.ToString());
UserLog.WriteLine("EventServerUpnpScheduler HttpError: " + e.ToString());
}
catch (NetworkError e)
{
Trace.WriteLine(Trace.kUpnp, "EventServerUpnpScheduler NetworkError: " + e.ToString());
UserLog.WriteLine("EventServerUpnpScheduler NetworkError: " + e.ToString());
}
catch (ReaderError e)
{
Trace.WriteLine(Trace.kUpnp, "EventServerUpnpScheduler ReaderError: " + e.ToString());
UserLog.WriteLine("EventServerUpnpScheduler ReaderError: " + e.ToString());
}
catch (WriterError e)
{
Trace.WriteLine(Trace.kUpnp, "EventServerUpnpScheduler WriterError: " + e.ToString());
UserLog.WriteLine("EventServerUpnpScheduler WriterError: " + e.ToString());
}
catch (Exception e)
{
Trace.WriteLine(Trace.kUpnp, "EventServerUpnpScheduler Exception: " + e.ToString());
UserLog.WriteLine("EventServerUpnpScheduler Exception: " + e.ToString());
throw;
}
finally
{
lock (iActiveSessionStreams)
{
if (iActiveSessionStreams.Contains(aSessionStream))
{
aSessionStream.Close();
iActiveSessionStreams.Remove(aSessionStream);
}
}
}
}
}, sessionStream);
}
catch (NetworkError e)
{
Trace.WriteLine(Trace.kUpnp, "EventServerUpnp.RunNetwork() NetworkError: " + e.ToString());
UserLog.WriteLine("EventServerUpnp.RunNetwork() NetworkError: " + e.ToString());
}
}
}
catch (Exception e)
{
Trace.WriteLine(Trace.kUpnp, "EventServerUpnp.RunNetwork() Exception: " + e.ToString());
UserLog.WriteLine("EventServerUpnp.RunNetwork() Exception: " + e.ToString());
throw e;
}
Trace.WriteLine(Trace.kUpnp, "EventServerUpnp.RunNetwork() finished");
}
private void RunNetwork()
{
Trace.WriteLine(Trace.kUpnp, "EventServerUpnp.RunNetwork() started");
try
{
while (!iThreadNetworkAbort)
{
try
{
TcpSessionStream sessionStream = new TcpSessionStream();
// listen for new incoming event
iServer.Accept(sessionStream);
lock (iActiveSessionStreams)
{
iActiveSessionStreams.Add(sessionStream);
}
iScheduler.Schedule(() =>
{
if (!iThreadNetworkAbort)
{
Srb readBuffer = new Srb(kMaxReadBufferBytes, sessionStream);
Swb writeBuffer = new Swb(kMaxWriteBufferBytes, sessionStream);
try
{
// read the event request
EventRequest request = new EventRequest();
request.Read(readBuffer);
// get the session for this subscription ID
EventHandlerEvent session = null;
if (request.SubscriptionId != null)
{
session = GetSession(request.SubscriptionId);
if (session == null)
{
// Wait 500mS and try again
Trace.WriteLine(Trace.kUpnp, "EventServerUpnp.RunNetwork(): Early Event! " + request.SubscriptionId);
Thread.Sleep(500);
session = GetSession(request.SubscriptionId);
}
}
// send the event response
request.WriteResponse(writeBuffer, (session != null));
// add event to be handled
if (session != null)
{
Event ev = new Event(request, session);
iEventFifo.Push(ev);
}
}
catch (HttpError e)
{
Trace.WriteLine(Trace.kUpnp, "EventServerUpnp.RunNetwork() HttpError: " + e.ToString());
UserLog.WriteLine("EventServerUpnp.RunNetwork() HttpError: " + e.ToString());
}
catch (NetworkError e)
{
Trace.WriteLine(Trace.kUpnp, "EventServerUpnp.RunNetwork() NetworkError: " + e.ToString());
UserLog.WriteLine("EventServerUpnp.RunNetwork() NetworkError: " + e.ToString());
}
catch (ReaderError e)
{
Trace.WriteLine(Trace.kUpnp, "EventServerUpnp.RunNetwork() ReaderError: " + e.ToString());
UserLog.WriteLine("EventServerUpnp.RunNetwork() ReaderError: " + e.ToString());
}
catch (WriterError e)
{
Trace.WriteLine(Trace.kUpnp, "EventServerUpnp.RunNetwork() WriterError: " + e.ToString());
UserLog.WriteLine("EventServerUpnp.RunNetwork() WriterError: " + e.ToString());
}
finally
{
lock (iActiveSessionStreams)
{
if (iActiveSessionStreams.Contains(sessionStream))
{
sessionStream.Close();
iActiveSessionStreams.Remove(sessionStream);
}
}
}
}
});
}
catch (HttpError e)
{
Trace.WriteLine(Trace.kUpnp, "EventServerUpnp.RunNetwork() HttpError: " + e.ToString());
UserLog.WriteLine("EventServerUpnp.RunNetwork() HttpError: " + e.ToString());
}
catch (NetworkError e)
{
Trace.WriteLine(Trace.kUpnp, "EventServerUpnp.RunNetwork() NetworkError: " + e.ToString());
UserLog.WriteLine("EventServerUpnp.RunNetwork() NetworkError: " + e.ToString());
}
catch (ReaderError e)
{
Trace.WriteLine(Trace.kUpnp, "EventServerUpnp.RunNetwork() ReaderError: " + e.ToString());
UserLog.WriteLine("EventServerUpnp.RunNetwork() ReaderError: " + e.ToString());
}
catch (WriterError e)
{
Trace.WriteLine(Trace.kUpnp, "EventServerUpnp.RunNetwork() WriterError: " + e.ToString());
UserLog.WriteLine("EventServerUpnp.RunNetwork() WriterError: " + e.ToString());
}
}
}
catch (Exception e)
{
Trace.WriteLine(Trace.kUpnp, "EventServerUpnp.RunNetwork() Exception: " + e.ToString());
UserLog.WriteLine("EventServerUpnp.RunNetwork() Exception: " + e.ToString());
throw e;
}
Trace.WriteLine(Trace.kUpnp, "EventServerUpnp.RunNetwork() finished");
}
/// <summary>
/// Invokes the event.
/// </summary>
protected virtual void OnEventHandlerEvent()
{
EventHandlerEvent?.Invoke(this, EventArgs.Empty);
}
