26 pthread_spin_init(pthread_spinlock_t *lock, int pshared)  in pthread_spin_init()  argument
30 	if (lock == NULL)  in pthread_spin_init()
40 	l->lock = _SPINLOCK_UNLOCKED;  in pthread_spin_init()
41 	*lock = l;  in pthread_spin_init()
46 pthread_spin_destroy(pthread_spinlock_t *lock)  in pthread_spin_destroy()  argument
48 	if (lock == NULL || *lock == NULL)  in pthread_spin_destroy()
51 	if ((*lock)->owner != NULL)  in pthread_spin_destroy()
54 	free(*lock);  in pthread_spin_destroy()
55 	*lock = NULL;  in pthread_spin_destroy()
60 pthread_spin_trylock(pthread_spinlock_t *lock)  in pthread_spin_trylock()  argument
65 	if (lock == NULL || *lock == NULL)  in pthread_spin_trylock()
68 	l = *lock;  in pthread_spin_trylock()
72 	if (!_spinlocktry(&l->lock))  in pthread_spin_trylock()
80 pthread_spin_lock(pthread_spinlock_t *lock)  in pthread_spin_lock()  argument
85 	if (lock == NULL || *lock == NULL)  in pthread_spin_lock()
88 	l = *lock;  in pthread_spin_lock()
93 	_spinlock(&l->lock);  in pthread_spin_lock()
99 pthread_spin_unlock(pthread_spinlock_t *lock)  in pthread_spin_unlock()  argument
104 	if (lock == NULL || *lock == NULL)  in pthread_spin_unlock()
107 	l = *lock;  in pthread_spin_unlock()
113 	_spinunlock(&l->lock);  in pthread_spin_unlock()