ObjFW  Diff

Differences From Artifact [656c95cd33]:

• File src/threading.m — part of check-in [fa79bc173e] at 2016-04-18 21:48:08 on branch trunk — Add of_thread_yield() (user: js, size: 2563) [annotate] [blame] [check-ins using]

To Artifact [7d26f1a4ec]:

• File src/threading.m — part of check-in [0c3e3da576] at 2016-07-30 23:29:38 on branch trunk — atomic.h: Use the OSAtomic variant without barrier

  This matches what the assembly versions does. However, the __sync_*
  versions still use the barrier, but unfortunately, no version without it
  is provided. The only way around this would be to use the new __atomic_*
  that has been added in GCC 4.7. (user: js, size: 2588) [annotate] [blame] [check-ins using]

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#ifndef OF_HAVE_PTHREADS
void
of_once(of_once_t *control, void (*func)(void))
{
	if (of_atomic_int_cmpswap(control, 0, 1)) {
		func();



		of_atomic_int_inc(control);
	} else
		while (*control == 1)
			of_thread_yield();
}
#endif

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#ifndef OF_HAVE_PTHREADS
void
of_once(of_once_t *control, void (*func)(void))
{
	if (of_atomic_int_cmpswap(control, 0, 1)) {
		func();

		of_memory_barrier();

		of_atomic_int_inc(control);
	} else
		while (*control == 1)
			of_thread_yield();
}
#endif