lh | 9ed821d | 2023-04-07 01:36:19 -0700 | [diff] [blame] | 1 | /* Copyright (C) 2003-2015 Free Software Foundation, Inc. |
| 2 | This file is part of the GNU C Library. |
| 3 | Contributed by Ulrich Drepper <drepper@redhat.com>, 2003. |
| 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 <pthread.h> |
| 21 | #include <semaphore.h> |
| 22 | #include <stdio.h> |
| 23 | #include <stdlib.h> |
| 24 | #include <string.h> |
| 25 | #include <unistd.h> |
| 26 | |
| 27 | |
| 28 | static pthread_barrier_t bar; |
| 29 | static sem_t sem; |
| 30 | |
| 31 | |
| 32 | static void |
| 33 | cleanup (void *arg) |
| 34 | { |
| 35 | static int ncall; |
| 36 | |
| 37 | if (++ncall != 1) |
| 38 | { |
| 39 | puts ("second call to cleanup"); |
| 40 | exit (1); |
| 41 | } |
| 42 | |
| 43 | printf ("cleanup call #%d\n", ncall); |
| 44 | } |
| 45 | |
| 46 | |
| 47 | static void * |
| 48 | tf (void *arg) |
| 49 | { |
| 50 | pthread_cleanup_push (cleanup, NULL); |
| 51 | |
| 52 | int e = pthread_barrier_wait (&bar); |
| 53 | if (e != 0 && e != PTHREAD_BARRIER_SERIAL_THREAD) |
| 54 | { |
| 55 | puts ("tf: 1st barrier_wait failed"); |
| 56 | exit (1); |
| 57 | } |
| 58 | |
| 59 | /* This call should block and be cancelable. */ |
| 60 | sem_wait (&sem); |
| 61 | |
| 62 | pthread_cleanup_pop (0); |
| 63 | |
| 64 | puts ("sem_wait returned"); |
| 65 | |
| 66 | return NULL; |
| 67 | } |
| 68 | |
| 69 | |
| 70 | static int |
| 71 | do_test (void) |
| 72 | { |
| 73 | pthread_t th; |
| 74 | |
| 75 | if (pthread_barrier_init (&bar, NULL, 2) != 0) |
| 76 | { |
| 77 | puts ("barrier_init failed"); |
| 78 | exit (1); |
| 79 | } |
| 80 | |
| 81 | if (sem_init (&sem, 0, 1) != 0) |
| 82 | { |
| 83 | puts ("sem_init failed"); |
| 84 | exit (1); |
| 85 | } |
| 86 | |
| 87 | if (pthread_create (&th, NULL, tf, NULL) != 0) |
| 88 | { |
| 89 | puts ("create failed"); |
| 90 | exit (1); |
| 91 | } |
| 92 | |
| 93 | /* Check whether cancellation is honored even before sem_wait does |
| 94 | anything. */ |
| 95 | if (pthread_cancel (th) != 0) |
| 96 | { |
| 97 | puts ("1st cancel failed"); |
| 98 | exit (1); |
| 99 | } |
| 100 | |
| 101 | int e = pthread_barrier_wait (&bar); |
| 102 | if (e != 0 && e != PTHREAD_BARRIER_SERIAL_THREAD) |
| 103 | { |
| 104 | puts ("1st barrier_wait failed"); |
| 105 | exit (1); |
| 106 | } |
| 107 | |
| 108 | void *r; |
| 109 | if (pthread_join (th, &r) != 0) |
| 110 | { |
| 111 | puts ("join failed"); |
| 112 | exit (1); |
| 113 | } |
| 114 | |
| 115 | if (r != PTHREAD_CANCELED) |
| 116 | { |
| 117 | puts ("thread not canceled"); |
| 118 | exit (1); |
| 119 | } |
| 120 | |
| 121 | return 0; |
| 122 | } |
| 123 | |
| 124 | |
| 125 | #define TEST_FUNCTION do_test () |
| 126 | #include "../test-skeleton.c" |