/// <summary>
/// Use only with TryDequeue without overridden priority!
/// Awaitable returns completed as long as there are any items for any priority!
/// </summary>
public AsyncEnqueuedCompletionUC EnqueuedItemsAsync()
{
using (Lock.Enter())
{
if (HasItems())
{
return(AsyncEnqueuedCompletionUC.Completed);
}
TaskCompletionSource <object> asyncEnqueued = new TaskCompletionSource <object>(TaskCreationOptions.RunContinuationsAsynchronously);
NotifyAnyPriority.Enqueue(asyncEnqueued);
return(new AsyncEnqueuedCompletionUC(asyncEnqueued.Task));
}
}
/// <summary>
/// If <see cref="prioritySelector"/> is not supported value => Exception
/// </summary>
public override void Enqueue(TPrioritySelectorEnum prioritySelector, TItem item)
{
base.Enqueue(prioritySelector, item);
using (Lock.Enter())
{
int iMax = NotifyAnyPriority.Count;
for (int i = 0; i < iMax; i++)
{
NotifyAnyPriority.Dequeue().TrySetResult(null);
}
Queue <TaskCompletionSource <object> > priorityQueue = NotifyPriority[prioritySelector];
iMax = priorityQueue.Count;
for (int i = 0; i < iMax; i++)
{
priorityQueue.Dequeue().TrySetResult(null);
}
}
}
