/* Copyright (C) 2002, 2003 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, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. */ #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); } 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); } 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); } 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"