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");
}
protected ServiceUpnp(Device aDevice, ServiceType aType, IProtocol aProtocol, IEventUpnpProvider aEventServer)
: base(aDevice, aType, aProtocol)
{
Server = aEventServer;
iMutex = new Mutex();
iUnsubscribeCompleted = new ManualResetEvent(false);
iControlUri = new Uri(Location.Find(ServiceLocationUpnp.kKeyUpnpControlUri));
iSubscribing = false;
iUnsubscribing = false;
iPendingSubscribe = false;
iPendingUnsubscribe = false;
iClosing = false;
if (Server != null)
{
iEventUri = new Uri(Location.Find(ServiceLocationUpnp.kKeyUpnpSubscriptionUri));
IPAddress address;
if (IPAddress.TryParse(iEventUri.Host, out address))
{
iEventEndpoint = new IPEndPoint(address, iEventUri.Port);
}
else
{
try
{
IPAddress[] addresses = Dns.GetHostEntry(iEventUri.Host).AddressList;
for (int i = 0; i < addresses.Length && address == null; i++)
{
if (addresses[i].AddressFamily == System.Net.Sockets.AddressFamily.InterNetwork)
{
address = addresses[i];
break;
}
}
if (address != null)
{
iEventEndpoint = new IPEndPoint(address, iEventUri.Port);
}
else
{
UserLog.WriteLine("Endpoint not found: " + iEventUri.Host + ":" + iEventUri.Port);
throw new NetworkError();
}
}
catch (Exception ex)
{
throw (new ServiceException(903, "Endpoint lookup failure: " + iEventUri.Host + ":" + iEventUri.Port + ", " + ex));
}
}
iSubscriptionTimer = new System.Threading.Timer(SubscriptionTimerElapsed, null, Timeout.Infinite, Timeout.Infinite);
iRequest = new TcpClientStream();
iWriteBuffer = new Swb(kMaxWriteBufferBytes, iRequest);
iReadBuffer = new Srb(kMaxReadBufferBytes, iRequest);
iWriter = new WriterRequest(iWriteBuffer);
iReader = new ReaderResponse2(iReadBuffer);
iHeaderUpnpSid = new HeaderUpnpSid();
iHeaderUpnpServer = new HeaderUpnpServer();
iHeaderUpnpTimeout = new HeaderUpnpTimeout();
iReader.AddHeader(iHeaderUpnpSid);
iReader.AddHeader(iHeaderUpnpServer);
iReader.AddHeader(iHeaderUpnpTimeout);
}
}
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");
}
