projects / thirdparty / glibc.git / blame
| Commit | Line | Data |
|---|---|---|
| f7a9f785 | 1 | /* Copyright (C) 2002-2016 Free Software Foundation, Inc. |
| 76a50749 UD |
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 | |
| 59ba27a6 PE |
16 | License along with the GNU C Library; if not, see |
| 17 | <http://www.gnu.org/licenses/>. */ | |
| 76a50749 UD |
18 | |
| 19 | #include <errno.h> | |
| 20 | #include <semaphore.h> | |
| 21 | #include <stdio.h> | |
| 22 | #include <unistd.h> | |
| 23 | ||
| 24 | ||
| 25 | static int | |
| 26 | do_test (void) | |
| 27 | { | |
| 28 | sem_t s; | |
| 29 | ||
| 30 | if (sem_init (&s, 0, 1) == -1) | |
| 31 | { | |
| 32 | puts ("init failed"); | |
| 33 | return 1; | |
| 34 | } | |
| 35 | ||
| 36 | if (TEMP_FAILURE_RETRY (sem_wait (&s)) == -1) | |
| 37 | { | |
| 38 | puts ("1st wait failed"); | |
| 39 | return 1; | |
| 40 | } | |
| 41 | ||
| 42 | if (sem_post (&s) == -1) | |
| 43 | { | |
| 44 | puts ("1st post failed"); | |
| 45 | return 1; | |
| 46 | } | |
| 47 | ||
| 48 | if (TEMP_FAILURE_RETRY (sem_trywait (&s)) == -1) | |
| 49 | { | |
| 50 | puts ("1st trywait failed"); | |
| 51 | return 1; | |
| 52 | } | |
| 53 | ||
| 54 | errno = 0; | |
| 55 | if (TEMP_FAILURE_RETRY (sem_trywait (&s)) != -1) | |
| 56 | { | |
| 57 | puts ("2nd trywait succeeded"); | |
| 58 | return 1; | |
| 59 | } | |
| 60 | else if (errno != EAGAIN) | |
| 61 | { | |
| 62 | puts ("2nd trywait did not set errno to EAGAIN"); | |
| 63 | return 1; | |
| 64 | } | |
| 65 | ||
| 66 | if (sem_post (&s) == -1) | |
| 67 | { | |
| 68 | puts ("2nd post failed"); | |
| 69 | return 1; | |
| 70 | } | |
| 71 | ||
| 72 | if (TEMP_FAILURE_RETRY (sem_wait (&s)) == -1) | |
| 73 | { | |
| 74 | puts ("2nd wait failed"); | |
| 75 | return 1; | |
| 76 | } | |
| 77 | ||
| 78 | if (sem_destroy (&s) == -1) | |
| 79 | { | |
| 80 | puts ("destroy failed"); | |
| 81 | return 1; | |
| 82 | } | |
| 83 | ||
| 84 | return 0; | |
| 85 | } | |
| 86 | ||
| 87 | #define TEST_FUNCTION do_test () | |
| 88 | #include "../test-skeleton.c" |