/* 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 <stdio.h> #include <stdlib.h> static pthread_mutex_t m; static pthread_barrier_t b; static void * tf (void *arg) { int e = pthread_mutex_unlock (&m); if (e == 0) { puts ("child: 1st mutex_unlock succeeded"); exit (1); } else if (e != EPERM) { puts ("child: 1st mutex_unlock error != EPERM"); exit (1); } e = pthread_mutex_trylock (&m); if (e == 0) { puts ("child: 1st trylock suceeded"); exit (1); } if (e != EBUSY) { puts ("child: 1st trylock didn't return EBUSY"); exit (1); } e = pthread_barrier_wait (&b); if (e != 0 && e != PTHREAD_BARRIER_SERIAL_THREAD) { puts ("child: 1st barrier_wait failed"); exit (1); } e = pthread_barrier_wait (&b); if (e != 0 && e != PTHREAD_BARRIER_SERIAL_THREAD) { puts ("child: 2nd barrier_wait failed"); exit (1); } e = pthread_mutex_unlock (&m); if (e == 0) { puts ("child: 2nd mutex_unlock succeeded"); exit (1); } else if (e != EPERM) { puts ("child: 2nd mutex_unlock error != EPERM"); exit (1); } if (pthread_mutex_trylock (&m) != 0) { puts ("child: 2nd trylock failed"); exit (1); } if (pthread_mutex_unlock (&m) != 0) { puts ("child: 3rd mutex_unlock failed"); exit (1); } return NULL; } static int do_test (void) { pthread_mutexattr_t a; int e; if (pthread_mutexattr_init (&a) != 0) { puts ("mutexattr_init failed"); exit (1); } if (pthread_mutexattr_settype (&a, PTHREAD_MUTEX_ERRORCHECK) != 0) { puts ("mutexattr_settype failed"); exit (1); } if (pthread_mutex_init (&m, &a) != 0) { puts ("mutex_init failed"); exit (1); } if (pthread_barrier_init (&b, NULL, 2) != 0) { puts ("barrier_init failed"); exit (1); } if ((e = pthread_mutex_unlock (&m)) == 0) { puts ("1st mutex_unlock succeeded"); exit (1); } else if (e != EPERM) { puts ("1st mutex_unlock error != EPERM"); exit (1); } if (pthread_mutex_lock (&m) != 0) { puts ("mutex_lock failed"); exit (1); } if ((e = pthread_mutex_lock (&m)) == 0) { puts ("2nd mutex_lock succeeded"); exit (1); } else if (e != EDEADLK) { puts ("2nd mutex_lock error != EDEADLK"); exit (1); } pthread_t th; if (pthread_create (&th, NULL, tf, NULL) != 0) { puts ("create failed"); exit (1); } e = pthread_barrier_wait (&b); if (e != 0 && e != PTHREAD_BARRIER_SERIAL_THREAD) { puts ("1st barrier_wait failed"); exit (1); } if (pthread_mutex_unlock (&m) != 0) { puts ("2nd mutex_unlock failed"); exit (1); } if ((e = pthread_mutex_unlock (&m)) == 0) { puts ("3rd mutex_unlock succeeded"); exit (1); } else if (e != EPERM) { puts ("3rd mutex_unlock error != EPERM"); exit (1); } e = pthread_barrier_wait (&b); if (e != 0 && e != PTHREAD_BARRIER_SERIAL_THREAD) { puts ("2nd barrier_wait failed"); exit (1); } if (pthread_join (th, NULL) != 0) { puts ("join failed"); exit (1); } if (pthread_mutex_destroy (&m) != 0) { puts ("mutex_destroy failed"); exit (1); } if (pthread_barrier_destroy (&b) != 0) { puts ("barrier_destroy failed"); exit (1); } if (pthread_mutexattr_destroy (&a) != 0) { puts ("mutexattr_destroy failed"); exit (1); } return 0; } #define TEST_FUNCTION do_test () #include "../test-skeleton.c"