104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
|
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
|
-
+
|
#endif
}
static OF_INLINE int
OFSpinlockTryLock(OFSpinlock *spinlock)
{
#if defined(OF_HAVE_ATOMIC_OPS)
if (of_atomic_int_cmpswap(spinlock, 0, 1)) {
if (OFAtomicIntCompareAndSwap(spinlock, 0, 1)) {
of_memory_barrier_acquire();
return 0;
}
return EBUSY;
#elif defined(OF_HAVE_PTHREAD_SPINLOCKS)
return pthread_spin_trylock(spinlock);
|
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
|
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
|
-
+
|
#endif
}
static OF_INLINE int
OFSpinlockUnlock(OFSpinlock *spinlock)
{
#if defined(OF_HAVE_ATOMIC_OPS)
bool ret = of_atomic_int_cmpswap(spinlock, 1, 0);
bool ret = OFAtomicIntCompareAndSwap(spinlock, 1, 0);
of_memory_barrier_release();
return (ret ? 0 : EINVAL);
#elif defined(OF_HAVE_PTHREAD_SPINLOCKS)
return pthread_spin_unlock(spinlock);
#else
|