如果控制器向设备发送了suspend信号，那么这个事件以最高优先级得到处理。
If the controller has sent a suspend signal to the device, this event gets processed with the highest priority.
有不同的信号量类：区分优先级，随着程序大小的增长根据活动进行特殊处理(例如，fifo次序，使用多个读进程)。
Have different kinds of semaphore classes: prioritization, specialization based on activity (for example, FIFO ordering, taking advantage of multiple readers) as the program increases in size.
公开了一种用信号向接收机通知传输流(ts)的分级优先级映射的用于传输的方法、用于接收的方法、系统、发射机和接收机。
A method for transmission, a method for reception, a system, a transmitter and a receiver for signalling a hierarchical priority mapping of a transport stream (TS) to a receiver is disclosed.
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