private static Task Dequeue()
{
lock (lockAllQueue)
{
LinkedList <Task> queue;
if (HighPriorityQueue.Count > 0)
{
queue = HighPriorityQueue;
}
else if (MediumPriorityQueue.Count > 0)
{
queue = MediumPriorityQueue;
}
else if (LowPriorityQueue.Count > 0)
{
queue = LowPriorityQueue;
}
else
{
throw new InvalidOperationException("No items in TaskQueue");
}
Task task = queue.First.Value;
queue.RemoveFirst();
itemsInQueue.Decrement();
return(task);
}
}
public static void RunPriorityQueue(object nil)
{
try
{
Task task = Dequeue();
itemsInProgress.Increment();
task.Execute(null);
}
catch (Exception e)
{
Logger.Warn("Error while task execution", e);
}
finally
{
itemsInProgress.Decrement();
}
}
