1/*
2 * Copyright (c) 2015 Dmitry V. Levin <ldv@altlinux.org>
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in the
12 *    documentation and/or other materials provided with the distribution.
13 * 3. The name of the author may not be used to endorse or promote products
14 *    derived from this software without specific prior written permission.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
19 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
21 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
22 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
23 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
25 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 */
27
28#include <stdio.h>
29#include <stdint.h>
30#include <time.h>
31#include <unistd.h>
32#include <sys/syscall.h>
33
34#if defined __NR_clock_getres \
35 && defined __NR_clock_gettime \
36 && defined __NR_clock_settime
37
38int
39main(void)
40{
41	struct {
42		struct timespec ts;
43		uint32_t pad[2];
44	} t = {
45		.pad = { 0xdeadbeef, 0xbadc0ded }
46	};
47
48	if (syscall(__NR_clock_getres, CLOCK_REALTIME, &t.ts))
49		return 77;
50	printf("clock_getres(CLOCK_REALTIME, {%jd, %jd}) = 0\n",
51	       (intmax_t) t.ts.tv_sec,
52	       (intmax_t) t.ts.tv_nsec);
53
54	if (syscall(__NR_clock_gettime, CLOCK_PROCESS_CPUTIME_ID, &t.ts))
55		return 77;
56	printf("clock_gettime(CLOCK_PROCESS_CPUTIME_ID, {%jd, %jd}) = 0\n",
57	       (intmax_t) t.ts.tv_sec,
58	       (intmax_t) t.ts.tv_nsec);
59
60	t.ts.tv_sec = 0xdeface1;
61	t.ts.tv_nsec = 0xdeface2;
62	if (!syscall(__NR_clock_settime, CLOCK_THREAD_CPUTIME_ID, &t.ts))
63		return 77;
64	printf("clock_settime(CLOCK_THREAD_CPUTIME_ID, {%jd, %jd})"
65	       " = -1 EINVAL (Invalid argument)\n",
66	       (intmax_t) t.ts.tv_sec,
67	       (intmax_t) t.ts.tv_nsec);
68
69	puts("+++ exited with 0 +++");
70	return 0;
71}
72
73#else
74
75int
76main(void)
77{
78	return 77;
79}
80
81#endif
82