Function wait_op

test/bthread_semaphore_unittest.cpp:134–139

bool g_stopped = false;

void wait_op(bthread_sem_t* sem, int64_t sleep_us) {
    ASSERT_EQ(0, bthread_sem_wait(sem));
    if (0 != sleep_us) {
        bthread_usleep(sleep_us);
    }
}

void post_op(bthread_sem_t* rw, int64_t sleep_us) {
    ASSERT_EQ(0, bthread_sem_post(rw));