1/*
2 * Copyright (c) 2002, Intel Corporation. All rights reserved.
3 * Created by:  julie.n.fleischer REMOVE-THIS AT intel DOT com
4 * This file is licensed under the GPL license.  For the full content
5 * of this license, see the COPYING file at the top level of this
6 * source tree.
7 * Test that parameter CLOCK_REALTIME returns seconds since the
8 * Epoch.  (This test is similar to other tests written, but rewritten
9 * here for completeness.)
10 * Validity is compared with gettimeofday().  See rationale.txt for
11 * more info.
12 * If the clocks are within a few seconds of each other, the test is
13 * a pass.
14 */
15#include <stdio.h>
16#include <time.h>
17#include <sys/time.h>
18#include <stdlib.h>
19#include "posixtest.h"
20
21#define ACCEPTABLEDELTA 1
22
23int main(void)
24{
25	struct timespec tpundertest;
26	struct timeval tvstandard;
27	int delta;
28
29	if (clock_gettime(CLOCK_REALTIME, &tpundertest) == 0) {
30		if (gettimeofday(&tvstandard, NULL) == 0) {
31			delta = (int)tvstandard.tv_sec -
32			    (int)tpundertest.tv_sec;
33			if (abs(delta) <= ACCEPTABLEDELTA) {
34				printf("Test PASSED\n");
35				return PTS_PASS;
36			} else {
37				printf("FAIL:  expected %d, received %d\n",
38				       (int)tvstandard.tv_sec,
39				       (int)tpundertest.tv_sec);
40				return PTS_FAIL;
41			}
42		} else {
43			perror("Error calling gettimeofday()\n");
44			return PTS_UNRESOLVED;
45		}
46	}
47
48	printf("clock_gettime() failed\n");
49	return PTS_UNRESOLVED;
50}
51