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 #ifdef HAVE_CONFIG_H
29 # include "config.h"
30 #endif
31
32 #include <stdio.h>
33 #include <stdint.h>
34 #include <time.h>
35 #include <fcntl.h>
36 #include <unistd.h>
37 #include <sys/syscall.h>
38
39 #if defined __NR_timerfd_create \
40 && defined __NR_timerfd_gettime \
41 && defined __NR_timerfd_settime \
42 && defined O_CLOEXEC
43
44 int
main(void)45 main(void)
46 {
47 (void) close(0);
48 if (syscall(__NR_timerfd_create, CLOCK_MONOTONIC, O_CLOEXEC | O_NONBLOCK))
49 return 77;
50 puts("timerfd_create(CLOCK_MONOTONIC, TFD_CLOEXEC|TFD_NONBLOCK) = 0");
51
52 struct {
53 struct itimerspec its;
54 uint32_t pad[4];
55 } old = {
56 .pad = { 0xdeadbeef, 0xbadc0ded, 0xdeadbeef, 0xbadc0ded }
57 }, new = {
58 .its = {
59 .it_interval = { 0xdeface1, 0xdeface2 },
60 .it_value = { 0xdeface3, 0xdeface4 }
61 },
62 .pad = { 0xdeadbeef, 0xbadc0ded, 0xdeadbeef, 0xbadc0ded }
63 };
64
65 if (syscall(__NR_timerfd_settime, 0, 0, &new.its, &old.its))
66 return 77;
67 printf("timerfd_settime(0, 0"
68 ", {it_interval={%jd, %jd}, it_value={%jd, %jd}}"
69 ", {it_interval={%jd, %jd}, it_value={%jd, %jd}}"
70 ") = 0\n",
71 (intmax_t) new.its.it_interval.tv_sec,
72 (intmax_t) new.its.it_interval.tv_nsec,
73 (intmax_t) new.its.it_value.tv_sec,
74 (intmax_t) new.its.it_value.tv_nsec,
75 (intmax_t) old.its.it_interval.tv_sec,
76 (intmax_t) old.its.it_interval.tv_nsec,
77 (intmax_t) old.its.it_value.tv_sec,
78 (intmax_t) old.its.it_value.tv_nsec);
79
80 if (syscall(__NR_timerfd_gettime, 0, &old.its))
81 return 77;
82 printf("timerfd_gettime(0"
83 ", {it_interval={%jd, %jd}, it_value={%jd, %jd}}"
84 ") = 0\n",
85 (intmax_t) old.its.it_interval.tv_sec,
86 (intmax_t) old.its.it_interval.tv_nsec,
87 (intmax_t) old.its.it_value.tv_sec,
88 (intmax_t) old.its.it_value.tv_nsec);
89
90 puts("+++ exited with 0 +++");
91 return 0;
92 }
93
94 #else
95
96 int
main(void)97 main(void)
98 {
99 return 77;
100 }
101
102 #endif
103