ObjFW  Diff

OFAtomicPointerCompareAndSwap(void *volatile _Nullable *_Nonnull p,
    void *_Nullable o, void *_Nullable n)
{
	return __sync_bool_compare_and_swap(p, o, n);
}

static OF_INLINE void
of_memory_barrier(void)
OFMemoryBarrier(void)
{
	__sync_synchronize();
}

static OF_INLINE void
of_memory_barrier_acquire(void)
OFAcquireMemoryBarrier(void)
{
	__sync_synchronize();
}

static OF_INLINE void
of_memory_barrier_release(void)
OFReleaseMemoryBarrier(void)
{
	__sync_synchronize();
}