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}
static OF_INLINE int
OFSpinlockTryLock(OFSpinlock *spinlock)
{
#if defined(OF_HAVE_ATOMIC_OPS)
if (OFAtomicIntCompareAndSwap(spinlock, 0, 1)) {
of_memory_barrier_acquire();
OFAcquireMemoryBarrier();
return 0;
}
return EBUSY;
#elif defined(OF_HAVE_PTHREAD_SPINLOCKS)
return pthread_spin_trylock(spinlock);
#else
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static OF_INLINE int
OFSpinlockUnlock(OFSpinlock *spinlock)
{
#if defined(OF_HAVE_ATOMIC_OPS)
bool ret = OFAtomicIntCompareAndSwap(spinlock, 1, 0);
of_memory_barrier_release();
OFReleaseMemoryBarrier();
return (ret ? 0 : EINVAL);
#elif defined(OF_HAVE_PTHREAD_SPINLOCKS)
return pthread_spin_unlock(spinlock);
#else
return OFPlainMutexUnlock(spinlock);
#endif
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