private void ScheduleEnumerator(Subscription subscription, IEnumerator <BaseData> enumerator, EnqueueableEnumerator <SubscriptionData> enqueueable,
int lowerThreshold, int upperThreshold, int firstLoopCount = 5)
{
// schedule the work on the controller
var security = subscription.Security;
var configuration = subscription.Configuration;
var firstLoop = true;
FuncParallelRunnerWorkItem workItem = null;
workItem = new FuncParallelRunnerWorkItem(() => enqueueable.Count < lowerThreshold, () =>
{
var count = 0;
while (enumerator.MoveNext())
{
// subscription has been removed, no need to continue enumerating
if (enqueueable.HasFinished)
{
enumerator.Dispose();
return;
}
var subscriptionData = SubscriptionData.Create(configuration, security.Exchange.Hours, subscription.OffsetProvider, enumerator.Current);
// drop the data into the back of the enqueueable
enqueueable.Enqueue(subscriptionData);
count++;
// special behavior for first loop to spool up quickly
if (firstLoop && count > firstLoopCount)
{
// there's more data in the enumerator, reschedule to run again
firstLoop = false;
_controller.Schedule(workItem);
return;
}
// stop executing if we've dequeued more than the lower threshold or have
// more total that upper threshold in the enqueueable's queue
if (count > lowerThreshold || enqueueable.Count > upperThreshold)
{
// there's more data in the enumerator, reschedule to run again
_controller.Schedule(workItem);
return;
}
}
// we made it here because MoveNext returned false, stop the enqueueable and don't reschedule
enqueueable.Stop();
});
_controller.Schedule(workItem);
}
private void ScheduleEnumerator(IEnumerator <BaseData> enumerator, EnqueueableEnumerator <BaseData> enqueueable, int lowerThreshold, int upperThreshold, int firstLoopCount = 5)
{
// schedule the work on the controller
var firstLoop = true;
FuncParallelRunnerWorkItem workItem = null;
workItem = new FuncParallelRunnerWorkItem(() => enqueueable.Count < lowerThreshold, () =>
{
var count = 0;
while (enumerator.MoveNext())
{
// drop the data into the back of the enqueueable
enqueueable.Enqueue(enumerator.Current);
count++;
// special behavior for first loop to spool up quickly
if (firstLoop && count > firstLoopCount)
{
// there's more data in the enumerator, reschedule to run again
firstLoop = false;
_controller.Schedule(workItem);
return;
}
// stop executing if we've dequeued more than the lower threshold or have
// more total that upper threshold in the enqueueable's queue
if (count > lowerThreshold || enqueueable.Count > upperThreshold)
{
// there's more data in the enumerator, reschedule to run again
_controller.Schedule(workItem);
return;
}
}
// we made it here because MoveNext returned false, stop the enqueueable and don't reschedule
enqueueable.Stop();
});
_controller.Schedule(workItem);
}
