C++ (Cpp) machine_delay_until Examples

Example #1

File: clock.c Project: Prajna/xnu

void
clock_delay_until(
	uint64_t		deadline)
{
	uint64_t		now = mach_absolute_time();

	if (now >= deadline)
		return;

	if (	(deadline - now) < (8 * sched_cswtime)	||
			get_preemption_level() != 0				||
			ml_get_interrupts_enabled() == FALSE	)
		machine_delay_until(deadline);
	else {
		assert_wait_deadline((event_t)clock_delay_until, THREAD_UNINT, deadline - sched_cswtime);

		thread_block(THREAD_CONTINUE_NULL);
	}
}

Example #2

File: clock.c Project: CptFrazz/xnu

/*
 * Preserve the original precise interval that the client
 * requested for comparison to the spin threshold.
 */
void
_clock_delay_until_deadline(
	uint64_t		interval,
	uint64_t		deadline)
{

	if (interval == 0)
		return;

	if (	ml_delay_should_spin(interval)	||
			get_preemption_level() != 0				||
			ml_get_interrupts_enabled() == FALSE	) {
		machine_delay_until(deadline);
	} else {
		assert_wait_deadline((event_t)clock_delay_until, THREAD_UNINT, deadline);

		thread_block(THREAD_CONTINUE_NULL);
	}
}