1 | /* Copyright (C) 2002-2024 Free Software Foundation, Inc. |
2 | This file is part of the GNU C Library. |
3 | |
4 | The GNU C Library is free software; you can redistribute it and/or |
5 | modify it under the terms of the GNU Lesser General Public |
6 | License as published by the Free Software Foundation; either |
7 | version 2.1 of the License, or (at your option) any later version. |
8 | |
9 | The GNU C Library is distributed in the hope that it will be useful, |
10 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
12 | Lesser General Public License for more details. |
13 | |
14 | You should have received a copy of the GNU Lesser General Public |
15 | License along with the GNU C Library; if not, see |
16 | <https://www.gnu.org/licenses/>. */ |
17 | |
18 | #include <errno.h> |
19 | #include <semaphore.h> |
20 | #include <time.h> |
21 | #include <unistd.h> |
22 | #include <sys/time.h> |
23 | #include <support/check.h> |
24 | #include <support/timespec.h> |
25 | #include <support/xtime.h> |
26 | |
27 | /* A bogus clock value that tells run_test to use sem_timedwait rather than |
28 | sem_clockwait. */ |
29 | #define CLOCK_USE_TIMEDWAIT (-1) |
30 | |
31 | static void |
32 | do_test_clock (clockid_t clockid) |
33 | { |
34 | const clockid_t clockid_for_get = |
35 | clockid == CLOCK_USE_TIMEDWAIT ? CLOCK_REALTIME : clockid; |
36 | sem_t s; |
37 | struct timespec ts; |
38 | |
39 | TEST_COMPARE (sem_init (&s, 0, 1), 0); |
40 | TEST_COMPARE (TEMP_FAILURE_RETRY (sem_wait (&s)), 0); |
41 | |
42 | /* We wait for half a second. */ |
43 | xclock_gettime (clock: clockid_for_get, ts: &ts); |
44 | ts = timespec_add (ts, make_timespec (s: 0, ns: TIMESPEC_HZ/2)); |
45 | |
46 | errno = 0; |
47 | TEST_COMPARE (TEMP_FAILURE_RETRY ((clockid == CLOCK_USE_TIMEDWAIT) |
48 | ? sem_timedwait (&s, &ts) |
49 | : sem_clockwait (&s, clockid, &ts)), -1); |
50 | TEST_COMPARE (errno, ETIMEDOUT); |
51 | TEST_TIMESPEC_NOW_OR_AFTER (clockid_for_get, ts); |
52 | } |
53 | |
54 | static int do_test (void) |
55 | { |
56 | do_test_clock (CLOCK_USE_TIMEDWAIT); |
57 | do_test_clock (CLOCK_REALTIME); |
58 | do_test_clock (CLOCK_MONOTONIC); |
59 | return 0; |
60 | } |
61 | |
62 | #include <support/test-driver.c> |
63 | |