ObjFW  Check-in [1664de811f]

}

static OF_INLINE bool
of_spinlock_lock(of_spinlock_t *spinlock)
{
#if defined(OF_HAVE_ATOMIC_OPS)
# if defined(OF_HAVE_SCHED_YIELD) || defined(OF_WINDOWS)
	size_t i;

	for (size_t i = 0; i < OF_SPINCOUNT; i++)
	for (i = 0; i < OF_SPINCOUNT; i++)
		if (of_spinlock_trylock(spinlock))
			return true;

	while (!of_spinlock_trylock(spinlock))
#  ifndef OF_WINDOWS
		sched_yield();
#  else