ObjFW  Diff

	return !pthread_key_delete(key);
#elif defined(OF_WINDOWS)
	return TlsFree(key);
#else
# error of_tlskey_free not implemented!
#endif
}

static OF_INLINE void
of_thread_yield(void)
{
#if defined(OF_HAVE_SCHED_YIELD)
	sched_yield();
#elif defined(OF_WINDOWS)
	Sleep(0);
#endif
}

static OF_INLINE bool
of_spinlock_new(of_spinlock_t *spinlock)
{
#if defined(OF_HAVE_ATOMIC_OPS)
	*spinlock = 0;
	return true;

#endif
}

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

	while (!of_spinlock_trylock(spinlock))
#  ifndef OF_WINDOWS
		sched_yield();
		of_thread_yield();
#  else
		Sleep(0);
#  endif
# else
	while (!of_spinlock_trylock(spinlock));
# endif

	return true;
#elif defined(OF_HAVE_PTHREAD_SPINLOCKS)
	return !pthread_spin_lock(spinlock);
#else
	return of_mutex_lock(spinlock);
#endif