public bool Enqueue(ThreadCommand task, THREADED_ENQUEUE_TYPE enqueueType = THREADED_ENQUEUE_TYPE.CLEAR_AND_ADD)
{
if (task == null)
{
return false;
}
if (task != null)
{
lock (_queueSyncObject)
{
switch (enqueueType)
{
case THREADED_ENQUEUE_TYPE.NORMAL:
_queue.Add(task);
task.State = COMMAND_STATE.STATE_WAIT;
break;
case THREADED_ENQUEUE_TYPE.CLEAR_AND_ADD:
for (int i = 0; i < _queue.Count; i++)
{
if (_queue[i].CommandID == task.CommandID)
{
_queue[i].State = COMMAND_STATE.STATE_CANCEL;
_queue.RemoveAt(i);
i--;
}
}
_queue.Add(task);
task.State = COMMAND_STATE.STATE_WAIT;
break;
default:
break;
}
bool eventFlag = _existTaskEvent.WaitOne(0, false);
if ((eventFlag == false) && (_queue.Count > 0))
{
_existTaskEvent.Set();
}
}
}
return true;
}
public virtual ThreadCommand PreprocessEnqueuingTask(ThreadCommand task,out THREADED_ENQUEUE_TYPE enqueueType)
{
enqueueType = THREADED_ENQUEUE_TYPE.NORMAL;
return task;
}
