/// <summary>Queues a task to the scheduler.</summary>
/// <param name="task">The task to be queued.</param>
protected override void QueueTask(Task task)
{
#if DEBUG
if (logger.IsVerbose2) logger.Verbose2(myId + " QueueTask Task Id={0}", task.Id);
#endif
var atask = new ActivationTask(task, IsReactive);
workerGroup.EnqueueTask(atask);
}
/// <summary>
/// Adds a task to this activation.
/// If we're adding it to the run list and we used to be waiting, now we're runnable.
/// </summary>
/// <param name="task">The work item to add.</param>
public void EnqueueTask(ActivationTask atask)
{
lock (lockable)
{
#if DEBUG
if (log.IsVerbose2) log.Verbose2("EnqueueWorkItem {0} into {1} when TaskScheduler.Current={2}", atask.Task, SchedulingContext, TaskScheduler.Current);
#endif
if (state == WorkGroupStatus.Shutdown)
{
ReportWorkGroupProblem(
String.Format("Enqueuing task {0} to a stopped work item group. Going to ignore and not execute it. "
+ "The likely reason is that the task is not being 'awaited' properly.", atask.Task),
ErrorCode.SchedulerNotEnqueuWorkWhenShutdown);
atask.Task.Ignore(); // Ignore this Task, so in case it is faulted it will not cause UnobservedException.
return;
}
long thisSequenceNumber = totalItemsEnQueued++;
int count = WorkItemCount;
#if TRACK_DETAILED_STATS
if (StatisticsCollector.CollectShedulerQueuesStats)
queueTracking.OnEnQueueRequest(1, count);
if (StatisticsCollector.CollectGlobalShedulerStats)
SchedulerStatisticsGroup.OnWorkItemEnqueue();
#endif
workItems.Enqueue(atask);
int maxPendingItemsLimit = masterScheduler.MaxPendingItemsLimit.SoftLimitThreshold;
if (maxPendingItemsLimit > 0 && count > maxPendingItemsLimit)
{
log.Warn(ErrorCode.SchedulerTooManyPendingItems, String.Format("{0} pending work items for group {1}, exceeding the warning threshold of {2}",
count, Name, maxPendingItemsLimit));
}
if (state != WorkGroupStatus.Waiting) return;
state = WorkGroupStatus.Runnable;
#if DEBUG
if (log.IsVerbose3) log.Verbose3("Add to RunQueue {0}, #{1}, onto {2}", atask.Task, thisSequenceNumber, SchedulingContext);
#endif
masterScheduler.RunQueue.Add(this);
}
}
