protected override void Stop()
{
if (_stopFlag == 1)
{
return;
}
_cancellation.Cancel();
Thread.MemoryBarrier();
ModuleUtils.StopThreadWork(_receiveThread);
//如果两个队列在被锁的状态则释放锁
_engineMessageQueue.FreeBlocks();
_statusMessageQueue.FreeBlocks();
_callBackMessageQueue.FreeBlocks();
// 发送停止消息，该消息只是为了释放被Receive阻塞的线程，并不会真的被处理
ControlMessage stopMessage = new ControlMessage(MessageNames.CtrlAbort, CommonConst.BroadcastSession);
UpLinkMessenger.Send(stopMessage);
Thread.MemoryBarrier();
ModuleUtils.StopThreadWork(_engineMessageListener);
ModuleUtils.StopThreadWork(_statusMessageListener);
ModuleUtils.StopThreadWork(_callBackMessageListener);
ModuleUtils.StopThreadWork(_receiveThread);
ZombieCleaner.Stop();
UpLinkMessenger.Clear();
Thread.VolatileWrite(ref _stopFlag, 1);
GlobalInfo.LogService.Print(LogLevel.Info, CommonConst.PlatformLogSession,
"Message transceiver stopped.");
}
private void SynchronousReceive(object state)
{
try
{
while (!_cancellation.IsCancellationRequested)
{
IMessage rawMessage = UpLinkMessenger.Receive();
MessageBase message = rawMessage as MessageBase;
if (null != message)
{
if (message.Type == MessageType.Status)
{
_statusMessageQueue.Enqueue(message);
}
else if (message.Type == MessageType.CallBack)
{
_callBackMessageQueue.Enqueue(message);
}
else
{
_engineMessageQueue.Enqueue(message);
}
GlobalInfo.LogService.Print(LogLevel.Debug, CommonConst.PlatformLogSession,
$"Message received, Type:{message.Type}, Index:{message.Index}.");
}
else
{
GlobalInfo.LogService.Print(LogLevel.Warn, CommonConst.PlatformSession,
$"Unexpected message received. Type:{rawMessage.GetType().Name}, id:{rawMessage.Id}");
}
}
}
catch (ThreadAbortException)
{
GlobalInfo.LogService.Print(LogLevel.Warn, CommonConst.PlatformLogSession,
$"thread {Thread.CurrentThread.Name} is stopped abnormally");
}
catch (Exception ex)
{
// 只有在因为非用户操作的情况下停止才执行停止操作
this.Stop();
GlobalInfo.EventQueue.Enqueue(new ExceptionEventInfo(ex));
GlobalInfo.LogService.Print(LogLevel.Fatal, CommonConst.PlatformLogSession, ex);
}
finally
{
GlobalInfo.LogService.Print(LogLevel.Info, CommonConst.PlatformLogSession,
$"thread {Thread.CurrentThread.Name} is Stopped.");
}
}
