PTHREAD_MUTEX_STALLED
#define PTHREAD_MUTEX_STALL_NP PTHREAD_MUTEX_STALLED
(robust != PTHREAD_MUTEX_ROBUST && robust != PTHREAD_MUTEX_STALLED))
PTHREAD_PRIO_NONE | PTHREAD_MUTEX_STALLED;
ap->robustness = PTHREAD_MUTEX_STALLED;
pthread_mutexattr_setrobust, PTHREAD_MUTEX_STALLED, check_robust,
static const int check_robust[] = { PTHREAD_MUTEX_STALLED, PTHREAD_MUTEX_ROBUST,