private void ProcessOverride(ThreadCommand task)
{
if (task.Executed == null)
{
task.State = COMMAND_STATE.STATE_CANCEL;
return;
}
if ((task.CanExecuted != null))
{
bool canExecuted = false;
if (task.IsUseDispatcher)
{
if (task.CallBackDispather != null)
{
canExecuted = (bool)task.CallBackDispather.Invoke(System.Windows.Threading.DispatcherPriority.Normal,
task.CanExecuted, task.Parameter);
}
}
else
{
canExecuted = task.CanExecuted(task.Parameter);
}
if (!canExecuted)
{
task.State = COMMAND_STATE.STATE_CANCEL;
return;
}
}
try
{
task.Executed(task.Parameter);
}
catch (Exception ex)
{
_logger.Fatal(null, ex);
}
if ((task.Complete != null))
{
if (task.IsUseDispatcher)
{
if (task.CallBackDispather != null)
{
task.CallBackDispather.Invoke(System.Windows.Threading.DispatcherPriority.Normal,
task.Complete, task.Parameter);
}
}
else
{
task.Complete(task.Parameter);
}
}
task.State = COMMAND_STATE.STATE_COMPLETE;
}
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;
}
