diff options
Diffstat (limited to 'REORG.TODO/nptl/tst-rwlock7.c')
| -rw-r--r-- | REORG.TODO/nptl/tst-rwlock7.c | 181 |
1 files changed, 181 insertions, 0 deletions
diff --git a/REORG.TODO/nptl/tst-rwlock7.c b/REORG.TODO/nptl/tst-rwlock7.c new file mode 100644 index 0000000000..504e51c68a --- /dev/null +++ b/REORG.TODO/nptl/tst-rwlock7.c @@ -0,0 +1,181 @@ +/* Copyright (C) 2002-2017 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Ulrich Drepper <drepper@redhat.com>, 2002. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + <http://www.gnu.org/licenses/>. */ + +#include <errno.h> +#include <pthread.h> +#include <stdlib.h> +#include <stdio.h> +#include <string.h> +#include <sys/time.h> + + +static int kind[] = + { + PTHREAD_RWLOCK_PREFER_READER_NP, + PTHREAD_RWLOCK_PREFER_WRITER_NONRECURSIVE_NP, + PTHREAD_RWLOCK_PREFER_WRITER_NP, + }; + + +static void * +tf (void *arg) +{ + pthread_rwlock_t *r = arg; + + /* Timeout: 0.3 secs. */ + struct timeval tv; + (void) gettimeofday (&tv, NULL); + + struct timespec ts; + TIMEVAL_TO_TIMESPEC (&tv, &ts); + ts.tv_nsec += 300000000; + if (ts.tv_nsec >= 1000000000) + { + ts.tv_nsec -= 1000000000; + ++ts.tv_sec; + } + + int err = pthread_rwlock_timedwrlock (r, &ts); + if (err == 0) + { + puts ("rwlock_timedwrlock returned"); + pthread_exit ((void *) 1l); + } + + if (err != ETIMEDOUT) + { + printf ("err = %s (%d), expected %s (%d)\n", + strerror (err), err, strerror (ETIMEDOUT), ETIMEDOUT); + pthread_exit ((void *) 1l); + } + puts ("child: timedwrlock failed with ETIMEDOUT"); + + struct timeval tv2; + (void) gettimeofday (&tv2, NULL); + + timersub (&tv2, &tv, &tv); + + if (tv.tv_usec < 200000) + { + puts ("timeout too short"); + pthread_exit ((void *) 1l); + } + + (void) gettimeofday (&tv, NULL); + TIMEVAL_TO_TIMESPEC (&tv, &ts); + ts.tv_sec += 10; + /* Note that the following operation makes ts invalid. */ + ts.tv_nsec += 1000000000; + + err = pthread_rwlock_timedwrlock (r, &ts); + if (err == 0) + { + puts ("2nd timedwrlock succeeded"); + pthread_exit ((void *) 1l); + } + if (err != EINVAL) + { + puts ("2nd timedwrlock did not return EINVAL"); + pthread_exit ((void *) 1l); + } + puts ("child: timedwrlock failed with EINVAL"); + + return NULL; +} + + +static int +do_test (void) +{ + size_t cnt; + for (cnt = 0; cnt < sizeof (kind) / sizeof (kind[0]); ++cnt) + { + pthread_rwlock_t r; + pthread_rwlockattr_t a; + + if (pthread_rwlockattr_init (&a) != 0) + { + printf ("round %Zu: rwlockattr_t failed\n", cnt); + exit (1); + } + + if (pthread_rwlockattr_setkind_np (&a, kind[cnt]) != 0) + { + printf ("round %Zu: rwlockattr_setkind failed\n", cnt); + exit (1); + } + + if (pthread_rwlock_init (&r, &a) != 0) + { + printf ("round %Zu: rwlock_init failed\n", cnt); + exit (1); + } + + if (pthread_rwlockattr_destroy (&a) != 0) + { + printf ("round %Zu: rwlockattr_destroy failed\n", cnt); + exit (1); + } + + struct timeval tv; + (void) gettimeofday (&tv, NULL); + + struct timespec ts; + TIMEVAL_TO_TIMESPEC (&tv, &ts); + + ++ts.tv_sec; + + /* Get a read lock. */ + if (pthread_rwlock_timedrdlock (&r, &ts) != 0) + { + printf ("round %Zu: rwlock_timedrdlock failed\n", cnt); + exit (1); + } + printf ("%zu: got timedrdlock\n", cnt); + + pthread_t th; + if (pthread_create (&th, NULL, tf, &r) != 0) + { + printf ("round %Zu: create failed\n", cnt); + exit (1); + } + + void *status; + if (pthread_join (th, &status) != 0) + { + printf ("round %Zu: join failed\n", cnt); + exit (1); + } + if (status != NULL) + { + printf ("failure in round %Zu\n", cnt); + exit (1); + } + + if (pthread_rwlock_destroy (&r) != 0) + { + printf ("round %Zu: rwlock_destroy failed\n", cnt); + exit (1); + } + } + + return 0; +} + +#define TEST_FUNCTION do_test () +#include "../test-skeleton.c" |