| lh | 9ed821d | 2023-04-07 01:36:19 -0700 | [diff] [blame^] | 1 | /* Copyright (C) 2002-2015 Free Software Foundation, Inc. |
| 2 | This file is part of the GNU C Library. |
| 3 | Contributed by Ulrich Drepper <drepper@redhat.com>, 2002. |
| 4 | |
| 5 | The GNU C Library is free software; you can redistribute it and/or |
| 6 | modify it under the terms of the GNU Lesser General Public |
| 7 | License as published by the Free Software Foundation; either |
| 8 | version 2.1 of the License, or (at your option) any later version. |
| 9 | |
| 10 | The GNU C Library 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 the GNU |
| 13 | Lesser General Public License for more details. |
| 14 | |
| 15 | You should have received a copy of the GNU Lesser General Public |
| 16 | License along with the GNU C Library; if not, see |
| 17 | <http://www.gnu.org/licenses/>. */ |
| 18 | |
| 19 | #include <errno.h> |
| 20 | #include <semaphore.h> |
| 21 | #include <stdio.h> |
| 22 | #include <time.h> |
| 23 | #include <unistd.h> |
| 24 | #include <sys/time.h> |
| 25 | |
| 26 | |
| 27 | static int |
| 28 | do_test (void) |
| 29 | { |
| 30 | sem_t s; |
| 31 | struct timespec ts; |
| 32 | struct timeval tv; |
| 33 | |
| 34 | if (sem_init (&s, 0, 1) == -1) |
| 35 | { |
| 36 | puts ("sem_init failed"); |
| 37 | return 1; |
| 38 | } |
| 39 | |
| 40 | if (TEMP_FAILURE_RETRY (sem_wait (&s)) == -1) |
| 41 | { |
| 42 | puts ("sem_wait failed"); |
| 43 | return 1; |
| 44 | } |
| 45 | |
| 46 | if (gettimeofday (&tv, NULL) != 0) |
| 47 | { |
| 48 | puts ("gettimeofday failed"); |
| 49 | return 1; |
| 50 | } |
| 51 | |
| 52 | TIMEVAL_TO_TIMESPEC (&tv, &ts); |
| 53 | |
| 54 | /* We wait for half a second. */ |
| 55 | ts.tv_nsec += 500000000; |
| 56 | if (ts.tv_nsec >= 1000000000) |
| 57 | { |
| 58 | ++ts.tv_sec; |
| 59 | ts.tv_nsec -= 1000000000; |
| 60 | } |
| 61 | |
| 62 | errno = 0; |
| 63 | if (TEMP_FAILURE_RETRY (sem_timedwait (&s, &ts)) != -1) |
| 64 | { |
| 65 | puts ("sem_timedwait succeeded"); |
| 66 | return 1; |
| 67 | } |
| 68 | if (errno != ETIMEDOUT) |
| 69 | { |
| 70 | printf ("sem_timedwait return errno = %d instead of ETIMEDOUT\n", |
| 71 | errno); |
| 72 | return 1; |
| 73 | } |
| 74 | |
| 75 | struct timespec ts2; |
| 76 | if (clock_gettime (CLOCK_REALTIME, &ts2) != 0) |
| 77 | { |
| 78 | puts ("clock_gettime failed"); |
| 79 | return 1; |
| 80 | } |
| 81 | |
| 82 | if (ts2.tv_sec < ts.tv_sec |
| 83 | || (ts2.tv_sec == ts.tv_sec && ts2.tv_nsec < ts.tv_nsec)) |
| 84 | { |
| 85 | puts ("timeout too short"); |
| 86 | return 1; |
| 87 | } |
| 88 | |
| 89 | return 0; |
| 90 | } |
| 91 | |
| 92 | #define TEST_FUNCTION do_test () |
| 93 | #include "../test-skeleton.c" |