protected override void OnStop()
{
if (null != ServiceStopCommand)
{
ServiceStopCommand.Set();
}
if (windowsServiceThread != null)
{
windowsServiceThread.Join();
}
}
protected override void OnStart(string[] args)
{
//Debugger.Launch();
if (null != ServiceStopCommand)
{
ServiceStopCommand.Reset();
}
windowsServiceThread = new Thread(new ThreadStart(LogicalEntryPoint))
{
Name = "Windows service thread"
};
windowsServiceThread.Start();
}
public void LogicalEntryPoint()
{
//Tracer.Trace("WorkerManager BeforeInit");
Init();
//Tracer.Trace("WorkerManager AfterInit");
var stopWatch = new Stopwatch();
while (true)
{
stopWatch.Restart();
bool directorServiceFailure = false;
try
{
if (directorCoreServicesClient == null)
{
directorCoreServicesClient = new DirectorCoreServicesClient("NetTcpBinding_IDirectorCoreServices");
}
//Tracer.Info("Worker Manager polls Director for jobs");
OpenJobs openJobs = directorCoreServicesClient.GetOpenJobs(Environment.MachineName);
declaredStateOfEmergency = false;
if (null != openJobs)
{
//Tracer.Trace("openJobs bin size is {0}", Utils.BinSizeOf(openJobs));
//Tracer.Trace("WorkerManager received {0} open jobs from Director", openJobs.Jobs.Count);
ProcessInfoFromDirector(openJobs);
}
}
catch (TimeoutException)
{
directorServiceFailure = true;
}
catch (CommunicationException) // EndpointNotFoundException also comes here
{
directorServiceFailure = true;
}
catch (Exception ex)
{
Tracer.Error("WorkerManager: Unhandled exception: " + ex.ToDebugString());
// If we want the service to stop we need to throw here and let exception be unhandled
Tracer.Info("WorkerManager: trying to continue after unhandled exception");
continue;
}
if (directorServiceFailure)
{
Debug.Assert(directorCoreServicesClient != null, "_directorCoreServicesClient != null");
directorCoreServicesClient.Abort();
((IDisposable)directorCoreServicesClient).Dispose();
directorCoreServicesClient = null;
//EmergencyFreeze();
EmergencyEvacuation();
}
stopWatch.Stop();
TimeSpan getSomeRest = TimeSpan.Zero;
if (stopWatch.Elapsed < directorPollingInterval)
{
getSomeRest = directorPollingInterval - stopWatch.Elapsed;
}
if (ServiceStopCommand == null)
{
Thread.Sleep(getSomeRest);
}
else
{
if (ServiceStopCommand.WaitOne(getSomeRest))
{
break;
}
}
}
}
