Function ff_thread_progress_await

libavcodec/threadprogress.c:64–78

}

void ff_thread_progress_await(const ThreadProgress *pro_c, int n)
{
    /* Casting const away here is safe, because we only read from progress
     * and will leave pro_c in the same state upon leaving the function
     * as it had at the beginning. */
    ThreadProgress *pro = (ThreadProgress*)pro_c;

    if (atomic_load_explicit(&pro->progress, memory_order_acquire) >= n)
        return;

    ff_mutex_lock(&pro->progress_mutex);
    while (atomic_load_explicit(&pro->progress, memory_order_relaxed) < n)
        ff_cond_wait(&pro->progress_cond, &pro->progress_mutex);
    ff_mutex_unlock(&pro->progress_mutex);
}