public RequestInstance GetInstanceToExecute(RequestInstance requestInstance)
{
ThreadCounts availableCounts = _threading.GetAvailableThreads();
ThreadCounts activeCounts = _maxThreads.Subtract(availableCounts);
int active = activeCounts.Greatest();
if (_count == 0 && active < _activeThreadsBeforeRemoteRequestsQueue)
{
return(requestInstance);
}
bool isLocal = requestInstance.IsLocal;
if (_count >= _queueLengthBeforeIncomingRequestsRejected)
{
requestInstance.Reject();
return(null);
}
requestInstance.Defer();
QueueInstance(requestInstance, isLocal);
if (active < _activeThreadsBeforeRemoteRequestsQueue)
{
return(DequeueInstance(false));
}
if (active < _activeThreadsBeforeLocalRequestsQueue)
{
return(DequeueInstance(true));
}
ScheduleExecuteIfNeeded();
return(null);
}
