private void ProcessQueuedItems(object state)
{
try
{
for (;;)
{
IRequest request;
if (this.queue.IsEmpty)
{
if (!this.queuedItemSignal.WaitOne(TimeSpan.FromSeconds(10.0)))
{
break;
}
}
else if (this.queue.TryDequeue(out request))
{
this.counters.QueueLengthCounter.Decrement();
this.currentRequest = request;
request.Process();
this.counters.ExecutionRateCounter.IncrementBy(1L);
DatabaseRequestLog.Write(request);
this.currentRequest = null;
}
}
}
finally
{
Interlocked.Exchange(ref this.activeThreads, 0L);
}
}
public SystemTaskBase GetTask(LoadBalanceWorkload workload, ResourceReservationContext context)
{
lock (this.requestQueueLock)
{
this.BlockedTaskCount = 0;
if (this.requests.Count == 0)
{
return(null);
}
for (int i = 0; i < this.requests.Count; i++)
{
IRequest request = this.requests[i];
if (request.IsBlocked)
{
this.BlockedTaskCount++;
}
else if (request.ShouldCancel(this.settings.IdleRunDelay))
{
request.Abort();
DatabaseRequestLog.Write(request);
this.requests.RemoveAt(i);
i--;
}
else
{
ResourceKey obj2;
ResourceReservation reservation = context.GetReservation(workload, request.Resources, out obj2);
if (reservation != null)
{
this.requests.RemoveAt(i);
return(new LoadBalanceTask(workload, reservation, request));
}
if (ProcessorResourceKey.Local.Equals(obj2))
{
this.BlockedTaskCount = this.requests.Count;
break;
}
this.BlockedTaskCount++;
}
}
}
return(null);
}
protected override TaskStepResult Execute()
{
this.request.Process();
DatabaseRequestLog.Write(this.request);
return(TaskStepResult.Complete);
}