public override void Post(SendOrPostCallback d, object state)
{
// queue the item and don't wait for its execution. This is risky because
// an unhandled exception will terminate the STA thread. Use with caution.
SendOrPostCallbackItem item = new SendOrPostCallbackItem(d, state,
ExecutionType.Post);
mQueue.Enqueue(item);
}
private void Run()
{
while (true)
{
bool stop = mStopEvent.WaitOne(0);
if (stop)
{
break;
}
SendOrPostCallbackItem workItem = mQueueConsumer.Dequeue();
workItem?.Execute();
}
}
public override void Send(SendOrPostCallback d, object state)
{
// create an item for execution
SendOrPostCallbackItem item = new SendOrPostCallbackItem(d, state,
ExecutionType.Send);
// queue the item
mQueue.Enqueue(item);
// wait for the item execution to end
item.ExecutionCompleteWaitHandle.WaitOne();
// if there was an exception, throw it on the caller thread, not the
// sta thread.
if (item.ExecutedWithException)
{
throw item.Exception;
}
}