1 /*
2 * Copyright (C) 2015-2017 Cyril Hrubis <chrubis@suse.cz>
3 *
4 * Licensed under the GNU GPLv2 or later.
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
13 * the GNU General Public License for more details.
14 *
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
18 */
19 /*
20 * 1. Block on a futex and wait for timeout.
21 * 2. Check that the futex waited for expected time.
22 */
23
24 #include <errno.h>
25
26 #include "tst_timer_test.h"
27 #include "futextest.h"
28
sample_fn(int clk_id,long long usec)29 int sample_fn(int clk_id, long long usec)
30 {
31 struct timespec to = tst_us_to_timespec(usec);
32 futex_t futex = FUTEX_INITIALIZER;
33
34 tst_timer_start(clk_id);
35 TEST(futex_wait(&futex, futex, &to, 0));
36 tst_timer_stop();
37 tst_timer_sample();
38
39 if (TST_RET != -1) {
40 tst_res(TFAIL, "futex_wait() returned %li, expected -1",
41 TST_RET);
42 return 1;
43 }
44
45 if (TST_ERR != ETIMEDOUT) {
46 tst_res(TFAIL | TTERRNO, "expected errno=%s",
47 tst_strerrno(ETIMEDOUT));
48 return 1;
49 }
50
51 return 0;
52 }
53
54 static struct tst_test test = {
55 .scall = "futex_wait()",
56 .sample = sample_fn,
57 };
58