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Diffstat (limited to 'htl/tests/test-15.c')
-rw-r--r-- | htl/tests/test-15.c | 102 |
1 files changed, 102 insertions, 0 deletions
diff --git a/htl/tests/test-15.c b/htl/tests/test-15.c new file mode 100644 index 0000000000..baf866aae4 --- /dev/null +++ b/htl/tests/test-15.c @@ -0,0 +1,102 @@ +/* Test pthread_rwlock_timedrdlock and pthread_rwlock_timedwrlock. + Copyright (C) 2000-2018 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 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 + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If + not, see <http://www.gnu.org/licenses/>. */ + +#define _GNU_SOURCE + +#include <pthread.h> +#include <stdio.h> +#include <assert.h> +#include <error.h> +#include <errno.h> +#include <sys/time.h> + +#define THREADS 10 + +pthread_rwlock_t rwlock; + +void * +test (void *arg) +{ + error_t err; + int foo = (int) arg; + struct timespec ts; + struct timeval before, after; + int diff; + + gettimeofday (&before, 0); + ts.tv_sec = before.tv_sec + 1; + ts.tv_nsec = before.tv_usec * 1000; + + printf ("Thread %d starting wait @ %d\n", pthread_self (), + (int) before.tv_sec); + + if (foo % 2 == 0) + err = pthread_rwlock_timedrdlock (&rwlock, &ts); + else + err = pthread_rwlock_timedwrlock (&rwlock, &ts); + + assert (err == ETIMEDOUT); + + gettimeofday (&after, 0); + + printf ("Thread %d ending wait @ %d\n", pthread_self (), (int) after.tv_sec); + + diff = after.tv_sec * 1000000 + after.tv_usec + - before.tv_sec * 1000000 - before.tv_usec; + + if (diff < 900000 || diff > 1100000) + error (1, EGRATUITOUS, "pthread_mutex_timedlock waited %d us", diff); + + return 0; +} + +int +main (int argc, char **argv) +{ + error_t err; + int i; + pthread_t tid[THREADS]; + + err = pthread_rwlock_init (&rwlock, 0); + if (err) + error (1, err, "pthread_rwlock_init"); + + /* Lock it so all the threads will block. */ + err = pthread_rwlock_wrlock (&rwlock); + assert (err == 0); + + for (i = 0; i < THREADS; i++) + { + err = pthread_create (&tid[i], 0, test, (void *) i); + if (err) + error (1, err, "pthread_create"); + } + + for (i = 0; i < THREADS; i++) + { + void *ret; + + err = pthread_join (tid[i], &ret); + if (err) + error (1, err, "pthread_join"); + + assert (ret == 0); + } + + return 0; +} |