xf.li | bdd93d5 | 2023-05-12 07:10:14 -0700 | [diff] [blame^] | 1 | /* Copyright (C) 2002-2016 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 <pthread.h> |
| 21 | #include <stdlib.h> |
| 22 | #include <stdio.h> |
| 23 | #include <string.h> |
| 24 | #include <sys/time.h> |
| 25 | |
| 26 | |
| 27 | static int kind[] = |
| 28 | { |
| 29 | PTHREAD_RWLOCK_PREFER_READER_NP, |
| 30 | PTHREAD_RWLOCK_PREFER_WRITER_NONRECURSIVE_NP, |
| 31 | PTHREAD_RWLOCK_PREFER_WRITER_NP, |
| 32 | }; |
| 33 | |
| 34 | |
| 35 | static void * |
| 36 | tf (void *arg) |
| 37 | { |
| 38 | pthread_rwlock_t *r = arg; |
| 39 | |
| 40 | /* Timeout: 0.3 secs. */ |
| 41 | struct timeval tv; |
| 42 | (void) gettimeofday (&tv, NULL); |
| 43 | |
| 44 | struct timespec ts; |
| 45 | TIMEVAL_TO_TIMESPEC (&tv, &ts); |
| 46 | ts.tv_nsec += 300000000; |
| 47 | if (ts.tv_nsec >= 1000000000) |
| 48 | { |
| 49 | ts.tv_nsec -= 1000000000; |
| 50 | ++ts.tv_sec; |
| 51 | } |
| 52 | |
| 53 | puts ("child calling timedrdlock"); |
| 54 | |
| 55 | int err = pthread_rwlock_timedrdlock (r, &ts); |
| 56 | if (err == 0) |
| 57 | { |
| 58 | puts ("rwlock_timedrdlock returned"); |
| 59 | pthread_exit ((void *) 1l); |
| 60 | } |
| 61 | |
| 62 | if (err != ETIMEDOUT) |
| 63 | { |
| 64 | printf ("err = %s (%d), expected %s (%d)\n", |
| 65 | strerror (err), err, strerror (ETIMEDOUT), ETIMEDOUT); |
| 66 | pthread_exit ((void *) 1l); |
| 67 | } |
| 68 | |
| 69 | puts ("1st child timedrdlock done"); |
| 70 | |
| 71 | struct timeval tv2; |
| 72 | (void) gettimeofday (&tv2, NULL); |
| 73 | |
| 74 | timersub (&tv2, &tv, &tv); |
| 75 | |
| 76 | if (tv.tv_usec < 200000) |
| 77 | { |
| 78 | puts ("timeout too short"); |
| 79 | pthread_exit ((void *) 1l); |
| 80 | } |
| 81 | |
| 82 | (void) gettimeofday (&tv, NULL); |
| 83 | TIMEVAL_TO_TIMESPEC (&tv, &ts); |
| 84 | ts.tv_sec += 10; |
| 85 | /* Note that the following operation makes ts invalid. */ |
| 86 | ts.tv_nsec += 1000000000; |
| 87 | |
| 88 | err = pthread_rwlock_timedrdlock (r, &ts); |
| 89 | if (err == 0) |
| 90 | { |
| 91 | puts ("2nd timedrdlock succeeded"); |
| 92 | pthread_exit ((void *) 1l); |
| 93 | } |
| 94 | if (err != EINVAL) |
| 95 | { |
| 96 | puts ("2nd timedrdlock did not return EINVAL"); |
| 97 | pthread_exit ((void *) 1l); |
| 98 | } |
| 99 | |
| 100 | puts ("2nd child timedrdlock done"); |
| 101 | |
| 102 | return NULL; |
| 103 | } |
| 104 | |
| 105 | |
| 106 | static int |
| 107 | do_test (void) |
| 108 | { |
| 109 | size_t cnt; |
| 110 | for (cnt = 0; cnt < sizeof (kind) / sizeof (kind[0]); ++cnt) |
| 111 | { |
| 112 | pthread_rwlock_t r; |
| 113 | pthread_rwlockattr_t a; |
| 114 | |
| 115 | if (pthread_rwlockattr_init (&a) != 0) |
| 116 | { |
| 117 | printf ("round %Zu: rwlockattr_t failed\n", cnt); |
| 118 | exit (1); |
| 119 | } |
| 120 | |
| 121 | if (pthread_rwlockattr_setkind_np (&a, kind[cnt]) != 0) |
| 122 | { |
| 123 | printf ("round %Zu: rwlockattr_setkind failed\n", cnt); |
| 124 | exit (1); |
| 125 | } |
| 126 | |
| 127 | if (pthread_rwlock_init (&r, &a) != 0) |
| 128 | { |
| 129 | printf ("round %Zu: rwlock_init failed\n", cnt); |
| 130 | exit (1); |
| 131 | } |
| 132 | |
| 133 | if (pthread_rwlockattr_destroy (&a) != 0) |
| 134 | { |
| 135 | printf ("round %Zu: rwlockattr_destroy failed\n", cnt); |
| 136 | exit (1); |
| 137 | } |
| 138 | |
| 139 | struct timeval tv; |
| 140 | (void) gettimeofday (&tv, NULL); |
| 141 | |
| 142 | struct timespec ts; |
| 143 | TIMEVAL_TO_TIMESPEC (&tv, &ts); |
| 144 | |
| 145 | ++ts.tv_sec; |
| 146 | |
| 147 | /* Get a write lock. */ |
| 148 | int e = pthread_rwlock_timedwrlock (&r, &ts); |
| 149 | if (e != 0) |
| 150 | { |
| 151 | printf ("round %Zu: rwlock_timedwrlock failed (%d)\n", cnt, e); |
| 152 | exit (1); |
| 153 | } |
| 154 | |
| 155 | puts ("1st timedwrlock done"); |
| 156 | |
| 157 | (void) gettimeofday (&tv, NULL); |
| 158 | TIMEVAL_TO_TIMESPEC (&tv, &ts); |
| 159 | ++ts.tv_sec; |
| 160 | e = pthread_rwlock_timedrdlock (&r, &ts); |
| 161 | if (e == 0) |
| 162 | { |
| 163 | puts ("timedrdlock succeeded"); |
| 164 | exit (1); |
| 165 | } |
| 166 | if (e != EDEADLK) |
| 167 | { |
| 168 | puts ("timedrdlock did not return EDEADLK"); |
| 169 | exit (1); |
| 170 | } |
| 171 | |
| 172 | puts ("1st timedrdlock done"); |
| 173 | |
| 174 | (void) gettimeofday (&tv, NULL); |
| 175 | TIMEVAL_TO_TIMESPEC (&tv, &ts); |
| 176 | ++ts.tv_sec; |
| 177 | e = pthread_rwlock_timedwrlock (&r, &ts); |
| 178 | if (e == 0) |
| 179 | { |
| 180 | puts ("2nd timedwrlock succeeded"); |
| 181 | exit (1); |
| 182 | } |
| 183 | if (e != EDEADLK) |
| 184 | { |
| 185 | puts ("2nd timedwrlock did not return EDEADLK"); |
| 186 | exit (1); |
| 187 | } |
| 188 | |
| 189 | puts ("2nd timedwrlock done"); |
| 190 | |
| 191 | pthread_t th; |
| 192 | if (pthread_create (&th, NULL, tf, &r) != 0) |
| 193 | { |
| 194 | printf ("round %Zu: create failed\n", cnt); |
| 195 | exit (1); |
| 196 | } |
| 197 | |
| 198 | puts ("started thread"); |
| 199 | |
| 200 | void *status; |
| 201 | if (pthread_join (th, &status) != 0) |
| 202 | { |
| 203 | printf ("round %Zu: join failed\n", cnt); |
| 204 | exit (1); |
| 205 | } |
| 206 | if (status != NULL) |
| 207 | { |
| 208 | printf ("failure in round %Zu\n", cnt); |
| 209 | exit (1); |
| 210 | } |
| 211 | |
| 212 | puts ("joined thread"); |
| 213 | |
| 214 | if (pthread_rwlock_destroy (&r) != 0) |
| 215 | { |
| 216 | printf ("round %Zu: rwlock_destroy failed\n", cnt); |
| 217 | exit (1); |
| 218 | } |
| 219 | } |
| 220 | |
| 221 | return 0; |
| 222 | } |
| 223 | |
| 224 | #define TEST_FUNCTION do_test () |
| 225 | #include "../test-skeleton.c" |