public bool CheckIfTaskRunning(IExecutableWorkItem item)
{
for (int i = 0; i < _allWorkItemQueues.Length; i++)
{
if (_allWorkItemQueues[i].AllItems.Count > 0)
{
if (_allWorkItemQueues[i].IsInList(item))
return true;
}
}
return false;
}
private int FindAppropriateQueue(IExecutableWorkItem workItemToExecute)
{
var ts = workItemToExecute.ExecutionTime.Subtract(CurrentDateTime);
if (ts.TotalMilliseconds > _largeDelayQueueCutoffMs)
{
return(_totalThreads - 1);
}
if (ts.TotalMilliseconds > _moderateDelayQueueCutoffMs)
{
return(_totalThreads - 2);
}
return(Interlocked.Increment(ref _counter) % (_totalThreads - 2));
}
/// <summary>
/// Schedules a work item to execute at a specific time
/// </summary>
/// <param name="eventToExecute"></param>
public void ScheduleEventToExecute(IExecutableWorkItem workItemToExecute)
{
int queueNum = FindAppropriateQueue(workItemToExecute);
_allWorkItemQueues[queueNum].Enqueue(workItemToExecute);
Interlocked.Increment(ref _workItemCount);
}
/// <summary>
/// Determines the appropriate queue in which to place the work item, based on its
/// scheduled execution time
/// </summary>
/// <param name="eventToExecute"></param>
/// <returns></returns>
private int FindAppropriateQueue(IExecutableWorkItem workItemToExecute)
{
TimeSpan ts = workItemToExecute.ExecutionTime.Subtract(CurrentDateTime);
return Interlocked.Increment(ref counter) % (TotalThreads);
}