pthread_yield与pthread_may_yield的差异？

Question

pthread_yield和p_thread_may产量的差异是什么？

Answer 1

pthread_yield()使调用线程立即放弃CPU。

然而，如果当前线程用完了给定的量程，pthread_may_yield()就会产生结果。

pthread_may_yield ()
{

    /* Whether this thread has used up its allocated time slice?
       Set Variable to True if yes. */

    if (thread has used up given quantum) {
        pthread_yield();
    }
}