锁定信号（ETH-LCK）：该功能用于为管理维护目的中断业务后，发送该OAM报文，将该信息通告维护端点（LKI），并上插客户层（LKR），进行告警压制，避免...
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如果多个线程在完成上面的初始调用后尝试锁定信号量，则这些线程会被阻塞，它们的请求进入队列，直到执行pthread _ mutex_unlock调用。
If multiple threads attempt to lock a semaphore after the initial call above, they block and their requests are queued until the pthread_mutex_unlock call is performed.
通过测量信号在卫星和天线之间传播所需的时间，汽车的位置可以被锁定在100米误差之内。
By measuring the time required for a signal to travel between the satellites and the antenna, the car's location can be pinned down within 100 meters.
在很多方面，轻便线程比大多数变体都简单得多；大多数关于信号、锁定及诸如此类的问题都不存在了。
In most respects weightless threads are quite a bit simpler than most variants; most issues about semaphores, locking, and the like disappear.
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