1#include <threads.h>
 2#include <pthread.h>
 3#include <errno.h>
 4
 5int mtx_timedlock(mtx_t *restrict m, const struct timespec *restrict ts)
 6{
 7	int ret = __pthread_mutex_timedlock((pthread_mutex_t *)m, ts);
 8	switch (ret) {
 9	default:        return thrd_error;
10	case 0:         return thrd_success;
11	case ETIMEDOUT: return thrd_timedout;
12	}
13}