/* Copyright (C) 2002 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 <stdio.h> static int do_test (void) { pthread_rwlock_t r; int e; if (pthread_rwlock_init (&r, NULL) != 0) { puts ("rwlock_init failed"); return 1; } puts ("rwlock_init succeeded"); if (pthread_rwlock_wrlock (&r) != 0) { puts ("1st rwlock_wrlock failed"); return 1; } puts ("1st rwlock_wrlock succeeded"); e = pthread_rwlock_tryrdlock (&r); if (e == 0) { puts ("rwlock_tryrdlock on rwlock with writer succeeded"); return 1; } if (e != EBUSY) { puts ("rwlock_tryrdlock on rwlock with writer return value != EBUSY"); return 1; } puts ("rwlock_tryrdlock on rwlock with writer failed with EBUSY"); e = pthread_rwlock_trywrlock (&r); if (e == 0) { puts ("rwlock_trywrlock on rwlock with writer succeeded"); return 1; } if (e != EBUSY) { puts ("rwlock_trywrlock on rwlock with writer return value != EBUSY"); return 1; } puts ("rwlock_trywrlock on rwlock with writer failed with EBUSY"); if (pthread_rwlock_unlock (&r) != 0) { puts ("1st rwlock_unlock failed"); return 1; } puts ("1st rwlock_unlock succeeded"); if (pthread_rwlock_tryrdlock (&r) != 0) { puts ("rwlock_tryrdlock on unlocked rwlock failed"); return 1; } puts ("rwlock_tryrdlock on unlocked rwlock succeeded"); e = pthread_rwlock_trywrlock (&r); if (e == 0) { puts ("rwlock_trywrlock on rwlock with reader succeeded"); return 1; } if (e != EBUSY) { puts ("rwlock_trywrlock on rwlock with reader return value != EBUSY"); return 1; } puts ("rwlock_trywrlock on rwlock with reader failed with EBUSY"); if (pthread_rwlock_unlock (&r) != 0) { puts ("2nd rwlock_unlock failed"); return 1; } puts ("2nd rwlock_unlock succeeded"); if (pthread_rwlock_trywrlock (&r) != 0) { puts ("rwlock_trywrlock on unlocked rwlock failed"); return 1; } puts ("rwlock_trywrlock on unlocked rwlock succeeded"); e = pthread_rwlock_tryrdlock (&r); if (e == 0) { puts ("rwlock_tryrdlock on rwlock with writer succeeded"); return 1; } if (e != EBUSY) { puts ("rwlock_tryrdlock on rwlock with writer return value != EBUSY"); return 1; } puts ("rwlock_tryrdlock on rwlock with writer failed with EBUSY"); if (pthread_rwlock_unlock (&r) != 0) { puts ("3rd rwlock_unlock failed"); return 1; } puts ("3rd rwlock_unlock succeeded"); if (pthread_rwlock_destroy (&r) != 0) { puts ("rwlock_destroy failed"); return 1; } puts ("rwlock_destroy succeeded"); return 0; } #define TEST_FUNCTION do_test () #include "../test-skeleton.c"