pthread_spin_init
int pthread_spin_init(pthread_spinlock_t *, int);
PROTO_STD_DEPRECATED(pthread_spin_init);
_CHECK(pthread_spin_init(&l, PTHREAD_PROCESS_SHARED), == ENOTSUP,
CHECKr(pthread_spin_init(&l, PTHREAD_PROCESS_PRIVATE));
#define lock_quick_init(lock) LOCKRET(pthread_spin_init(lock, PTHREAD_PROCESS_PRIVATE))
LOCKRET(pthread_spin_init(&e->u.spinlock, PTHREAD_PROCESS_PRIVATE));
#define lock_quick_init(lock) LOCKRET(pthread_spin_init(lock, PTHREAD_PROCESS_PRIVATE))