__trylocks_exclusive
__trylocks_exclusive(0, *__mutex);
__trylocks_exclusive(0, *__mutex);
__trylocks_exclusive(0, *__rwlock);
__trylocks_exclusive(0, *__rwlock);
__trylocks_exclusive(0, *__spin);
__trylocks_exclusive(thrd_success, *__mtx);
__trylocks_exclusive(thrd_success, *__mtx);
mtx_trylock(pthread_mutex_t *lock) __trylocks_exclusive(true, *lock)