Function rte_delay_us_sleep

dpdk/lib/eal/windows/eal_timer.c:17–49

#define CYC_PER_10MHZ 1E7

void
rte_delay_us_sleep(unsigned int us)
{
	HANDLE timer;
	LARGE_INTEGER due_time;

	/* create waitable timer */
	timer = CreateWaitableTimer(NULL, TRUE, NULL);
	if (!timer) {
		RTE_LOG_WIN32_ERR("CreateWaitableTimer()");
		rte_errno = ENOMEM;
		return;
	}

	/*
	 * due_time's uom is 100 ns, multiply by 10 to convert to microseconds
	 * set us microseconds time for timer
	 */
	due_time.QuadPart = -((int64_t)us * 10);
	if (!SetWaitableTimer(timer, &due_time, 0, NULL, NULL, FALSE)) {
		RTE_LOG_WIN32_ERR("SetWaitableTimer()");
		rte_errno = EINVAL;
		goto end;
	}
	/* start wait for timer for us microseconds */
	if (WaitForSingleObject(timer, INFINITE) == WAIT_FAILED) {
		RTE_LOG_WIN32_ERR("WaitForSingleObject()");
		rte_errno = EINVAL;
	}

end:
	CloseHandle(timer);
}

uint64_t
get_tsc_freq(void)