/* Copyright (C) 2004 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Ulrich Drepper <drepper@redhat.com>, 2004. 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> #include <string.h> #include <unistd.h> #include <sys/time.h> static pthread_cond_t cond = PTHREAD_COND_INITIALIZER; static pthread_mutex_t mut = PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP; static pthread_mutex_t mut2 = PTHREAD_MUTEX_INITIALIZER; static void * tf (void *p) { if (pthread_mutex_lock (&mut) != 0) { printf ("%s: 1st mutex_lock failed\n", __func__); exit (1); } if (pthread_mutex_lock (&mut) != 0) { printf ("%s: 2nd mutex_lock failed\n", __func__); exit (1); } if (pthread_mutex_lock (&mut) != 0) { printf ("%s: 3rd mutex_lock failed\n", __func__); exit (1); } if (pthread_mutex_unlock (&mut2) != 0) { printf ("%s: mutex_unlock failed\n", __func__); exit (1); } struct timeval tv; gettimeofday (&tv, NULL); struct timespec ts; TIMEVAL_TO_TIMESPEC (&tv, &ts); ts.tv_sec += p == NULL ? 100 : 1; int err = pthread_cond_timedwait (&cond, &mut, &ts); if ((err != 0 && p == NULL) || (err != ETIMEDOUT && p != NULL)) { printf ("%s: cond_wait failed\n", __func__); exit (1); } if (pthread_mutex_unlock (&mut) != 0) { printf ("%s: 1st mutex_unlock failed\n", __func__); exit (1); } if (pthread_mutex_unlock (&mut) != 0) { printf ("%s: 2nd mutex_unlock failed\n", __func__); exit (1); } if (pthread_mutex_unlock (&mut) != 0) { printf ("%s: 3rd mutex_unlock failed\n", __func__); exit (1); } puts ("child: done"); return NULL; } static int do_test (void) { if (pthread_mutex_lock (&mut2) != 0) { puts ("1st mutex_lock failed"); return 1; } puts ("parent: create 1st child"); pthread_t th; int err = pthread_create (&th, NULL, tf, NULL); if (err != 0) { printf ("parent: cannot 1st create thread: %s\n", strerror (err)); return 1; } /* We have to synchronize with the child. */ if (pthread_mutex_lock (&mut2) != 0) { puts ("2nd mutex_lock failed"); return 1; } /* Give the child to reach to pthread_cond_wait. */ sleep (1); if (pthread_cond_signal (&cond) != 0) { puts ("cond_signal failed"); return 1; } err = pthread_join (th, NULL); if (err != 0) { printf ("parent: failed to join: %s\n", strerror (err)); return 1; } puts ("parent: create 2nd child"); err = pthread_create (&th, NULL, tf, (void *) 1l); if (err != 0) { printf ("parent: cannot 2nd create thread: %s\n", strerror (err)); return 1; } err = pthread_join (th, NULL); if (err != 0) { printf ("parent: failed to join: %s\n", strerror (err)); return 1; } puts ("done"); return 0; } #define TEST_FUNCTION do_test () #define TIMEOUT 6 #include "../test-skeleton.c"