/* 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, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. */ #include <error.h> #include <pthread.h> #include <stdio.h> #include <stdlib.h> static pthread_cond_t cond = PTHREAD_COND_INITIALIZER; static pthread_mutex_t mut = PTHREAD_MUTEX_INITIALIZER; static void * tf (void *p) { int err; err = pthread_mutex_lock (&mut); if (err != 0) error (EXIT_FAILURE, err, "child: cannot get mutex"); puts ("child: got mutex; signalling"); pthread_cond_signal (&cond); puts ("child: unlock"); err = pthread_mutex_unlock (&mut); if (err != 0) error (EXIT_FAILURE, err, "child: cannot unlock"); puts ("child: done"); return NULL; } static int do_test (void) { pthread_t th; int err; printf ("&cond = %p\n&mut = %p\n", &cond, &mut); puts ("parent: get mutex"); err = pthread_mutex_lock (&mut); if (err != 0) error (EXIT_FAILURE, err, "parent: cannot get mutex"); puts ("parent: create child"); err = pthread_create (&th, NULL, tf, NULL); if (err != 0) error (EXIT_FAILURE, err, "parent: cannot create thread"); puts ("parent: wait for condition"); err = pthread_cond_wait (&cond, &mut); if (err != 0) error (EXIT_FAILURE, err, "parent: cannot wait fir signal"); puts ("parent: got signal"); err = pthread_join (th, NULL); if (err != 0) error (EXIT_FAILURE, err, "parent: failed to join"); puts ("done"); return 0; } #define TEST_FUNCTION do_test () #include "../test-skeleton.c"