timediff_test.c
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timediff_test.c
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	/*
	* Copyright (C) 2010-2015 Red Hat, Inc. All rights reserved.
	*
	* Authors: Fabio M. Di Nitto <fabbione@kronosnet.org>
	* Federico Simoncelli <fsimon@kronosnet.org>
	*
	* This software licensed under GPL-2.0+, LGPL-2.0+
	*/

	#include "config.h"

	#include <stdio.h>
	#include <time.h>
	#include <stdlib.h>

	#include "threads_common.h"

	#define timespec_set(x, sec, nsec) \
	do { \
	x.tv_sec = sec; \
	x.tv_nsec = nsec; \
	} while (0);

	static void check_timespec_diff(void)
	{
	unsigned long long diff;
	struct timespec start, end;

	timespec_set(start, 1, 30000);

	timespec_set(end, start.tv_sec, start.tv_nsec + 10000);
	timespec_diff(start, end, &diff);

	printf("Checking 10000 == %llu\n", diff);

	if (diff != 10000) {
	printf("Failure!\n");
	exit(EXIT_FAILURE);
	}

	timespec_set(end, start.tv_sec + 5, start.tv_nsec - 5000);
	timespec_diff(start, end, &diff);

	printf("Checking 4999995000 == %llu\n", diff);

	if (diff != 4999995000llu) {
	printf("Failure!\n");
	exit(EXIT_FAILURE);
	}
	}

	int main(int argc, char *argv[])
	{
	check_timespec_diff();

	return 0;
	}