private bool PollAndHandleMessage(Task[] tasks, int availableIx, Task availableTask)
{
CloudQueueMessage message;
QueueEnvelope envelope = QueueSupport.GetFromDefaultQueue(out message);
if (envelope != null)
{
Task executing = Task.Factory.StartNew(() => WorkerSupport.ProcessMessage(envelope));
tasks[availableIx] = executing;
QueueSupport.CurrDefaultQueue.DeleteMessage(message);
if (availableTask.Exception != null)
{
ErrorSupport.ReportException(availableTask.Exception);
}
return(true);
}
else
{
if (message != null)
{
QueueSupport.CurrDefaultQueue.DeleteMessage(message);
ErrorSupport.ReportMessageError(message);
}
GC.Collect();
return(false);
}
}
private static void RunTaskedQueueWorker()
{
Task[] tasks = new Task[]
{
Task.Factory.StartNew(() => {}),
Task.Factory.StartNew(() => {}),
Task.Factory.StartNew(() => {}),
//Task.Factory.StartNew(() => {}),
//Task.Factory.StartNew(() => {}),
};
bool IsStopped = false;
int initialCount = 0;
while (true)
{
try
{
Task.WaitAny(tasks);
if (IsStopped)
{
Task.WaitAll(tasks);
foreach (var task in tasks)
{
if (task.Exception != null)
{
ErrorSupport.ReportException(task.Exception);
}
}
break;
}
int availableIx;
Task availableTask = WorkerSupport.GetFirstCompleted(tasks, out availableIx);
CloudQueueMessage message;
QueueEnvelope envelope = QueueSupport.GetFromDefaultQueue(out message);
if (envelope != null)
{
Task executing = Task.Factory.StartNew(() => WorkerSupport.ProcessMessage(envelope));
tasks[availableIx] = executing;
QueueSupport.CurrDefaultQueue.DeleteMessage(message);
if (availableTask.Exception != null)
{
ErrorSupport.ReportException(availableTask.Exception);
}
}
else
{
if (message != null)
{
QueueSupport.CurrDefaultQueue.DeleteMessage(message);
ErrorSupport.ReportMessageError(message);
}
Thread.Sleep(1000);
}
}
catch (AggregateException ae)
{
foreach (var e in ae.Flatten().InnerExceptions)
{
ErrorSupport.ReportException(e);
}
Thread.Sleep(10000);
// or ...
// ae.Flatten().Handle((ex) => ex is MyCustomException);
}
/*
* catch (MessagingException e)
* {
* if (!e.IsTransient)
* {
* Trace.WriteLine(e.Message);
* throw;
* }
* Thread.Sleep(10000);
* }*/
catch (OperationCanceledException e)
{
if (!IsStopped)
{
Trace.WriteLine(e.Message);
throw;
}
}
catch (Exception ex)
{
ErrorSupport.ReportException(ex);
throw;
}
}
}