当比赛进入队列仅仅停止退出队列和简历背景游戏前景时退出队列。

Then when the game goes into background the queue simply stops dequeuing and resumes dequeuing when the game is in the foreground.

youdao

退出队列是一个单线程操作，即使消息流本身配置为多实例时也是如此。

Dequeuing is single threaded, even if the message flow itself is configured for multiple instances.

youdao

Dispatcher——管理等待执行的服务请求的激活队列；它决定接下来哪个请求退出队列并在实现该请求的Service Delegate对象上执行。

Dispatcher? Manages an Activation queue of service requests that are pending execution; it decides which request to de-queue next and execute on a service Delegate object that implements the request.

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