/// <summary>
/// the out T can be null and return will be false
/// if the queue is empty, then this function will be blocked until new message arrive
/// </summary>
/// <param name="msg"></param>
/// <param name="token"></param>
/// <returns></returns>
public bool TryDequeue(out T msg)
{
if (IsQueueEmpty)
{
WaitForMsgEvent.Wait(cts.Token);
WaitForMsgEvent.Reset();
}
bool ret = false;
if (!bWritingQueueA)
{
ret = QueueA.TryDequeue(out msg);
}
else
{
ret = QueueB.TryDequeue(out msg);
}
if (!ret && ((!bWritingQueueA && QueueA.Count == 0) || (bWritingQueueA && QueueB.Count == 0)))
{
if (bWritingQueueA)
{
bWritingQueueA = false;
}
else
{
bWritingQueueA = true;
}
}
return(ret);
}
public void Enqueue(T obj)
{
if (bWritingQueueA)
{
QueueA.Enqueue(obj);
}
else
{
QueueB.Enqueue(obj);
}
if (WaitForMsgEvent.SpinCount > 0)
{
WaitForMsgEvent.Set();
}
}