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Diffstat (limited to 'nptl/tst-rwlock9.c')
| -rw-r--r-- | nptl/tst-rwlock9.c | 221 |
1 files changed, 0 insertions, 221 deletions
diff --git a/nptl/tst-rwlock9.c b/nptl/tst-rwlock9.c deleted file mode 100644 index a7ea34fae6..0000000000 --- a/nptl/tst-rwlock9.c +++ /dev/null @@ -1,221 +0,0 @@ -/* Test program for timedout read/write lock functions. - Copyright (C) 2000-2017 Free Software Foundation, Inc. - Contributed by Ulrich Drepper <drepper@redhat.com>, 2000. - - 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; see the file COPYING.LIB. If - not, see <http://www.gnu.org/licenses/>. */ - -#include <errno.h> -#include <error.h> -#include <pthread.h> -#include <stdio.h> -#include <stdlib.h> -#include <time.h> -#include <unistd.h> -#include <sys/time.h> - - -#define NWRITERS 15 -#define WRITETRIES 10 -#define NREADERS 15 -#define READTRIES 15 - -#define TIMEOUT 1000000 -#define DELAY 1000000 - -#ifndef KIND -# define KIND PTHREAD_RWLOCK_PREFER_WRITER_NONRECURSIVE_NP -#endif - -static pthread_rwlock_t lock; - - -static void * -writer_thread (void *nr) -{ - struct timespec ts; - struct timespec delay; - int n; - - delay.tv_sec = 0; - delay.tv_nsec = DELAY; - - for (n = 0; n < WRITETRIES; ++n) - { - int e; - do - { - struct timeval tv; - (void) gettimeofday (&tv, NULL); - TIMEVAL_TO_TIMESPEC (&tv, &ts); - - ts.tv_nsec += 2 * TIMEOUT; - if (ts.tv_nsec >= 1000000000) - { - ts.tv_nsec -= 1000000000; - ++ts.tv_sec; - } - - printf ("writer thread %ld tries again\n", (long int) nr); - - e = pthread_rwlock_timedwrlock (&lock, &ts); - if (e != 0 && e != ETIMEDOUT) - { - puts ("timedwrlock failed"); - exit (1); - } - } - while (e == ETIMEDOUT); - - printf ("writer thread %ld succeeded\n", (long int) nr); - - nanosleep (&delay, NULL); - - if (pthread_rwlock_unlock (&lock) != 0) - { - puts ("unlock for writer failed"); - exit (1); - } - - printf ("writer thread %ld released\n", (long int) nr); - } - - return NULL; -} - - -static void * -reader_thread (void *nr) -{ - struct timespec ts; - struct timespec delay; - int n; - - delay.tv_sec = 0; - delay.tv_nsec = DELAY; - - for (n = 0; n < READTRIES; ++n) - { - int e; - do - { - struct timeval tv; - (void) gettimeofday (&tv, NULL); - TIMEVAL_TO_TIMESPEC (&tv, &ts); - - ts.tv_nsec += TIMEOUT; - if (ts.tv_nsec >= 1000000000) - { - ts.tv_nsec -= 1000000000; - ++ts.tv_sec; - } - - printf ("reader thread %ld tries again\n", (long int) nr); - - e = pthread_rwlock_timedrdlock (&lock, &ts); - if (e != 0 && e != ETIMEDOUT) - { - puts ("timedrdlock failed"); - exit (1); - } - } - while (e == ETIMEDOUT); - - printf ("reader thread %ld succeeded\n", (long int) nr); - - nanosleep (&delay, NULL); - - if (pthread_rwlock_unlock (&lock) != 0) - { - puts ("unlock for reader failed"); - exit (1); - } - - printf ("reader thread %ld released\n", (long int) nr); - } - - return NULL; -} - - -static int -do_test (void) -{ - pthread_t thwr[NWRITERS]; - pthread_t thrd[NREADERS]; - int n; - void *res; - pthread_rwlockattr_t a; - - if (pthread_rwlockattr_init (&a) != 0) - { - puts ("rwlockattr_t failed"); - exit (1); - } - - if (pthread_rwlockattr_setkind_np (&a, KIND) != 0) - { - puts ("rwlockattr_setkind failed"); - exit (1); - } - - if (pthread_rwlock_init (&lock, &a) != 0) - { - puts ("rwlock_init failed"); - exit (1); - } - - /* Make standard error the same as standard output. */ - dup2 (1, 2); - - /* Make sure we see all message, even those on stdout. */ - setvbuf (stdout, NULL, _IONBF, 0); - - for (n = 0; n < NWRITERS; ++n) - if (pthread_create (&thwr[n], NULL, writer_thread, - (void *) (long int) n) != 0) - { - puts ("writer create failed"); - exit (1); - } - - for (n = 0; n < NREADERS; ++n) - if (pthread_create (&thrd[n], NULL, reader_thread, - (void *) (long int) n) != 0) - { - puts ("reader create failed"); - exit (1); - } - - /* Wait for all the threads. */ - for (n = 0; n < NWRITERS; ++n) - if (pthread_join (thwr[n], &res) != 0) - { - puts ("writer join failed"); - exit (1); - } - for (n = 0; n < NREADERS; ++n) - if (pthread_join (thrd[n], &res) != 0) - { - puts ("reader join failed"); - exit (1); - } - - return 0; -} - -#undef TIMEOUT -#define TIMEOUT 30 -#define TEST_FUNCTION do_test () -#include "../test-skeleton.c" |