/* 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 <errno.h> #include <pthread.h> #include <stdio.h> #include <stdlib.h> #include <string.h> #include <time.h> static pthread_mutex_t lock = PTHREAD_MUTEX_INITIALIZER; static void * tf (void *arg) { if (pthread_mutex_lock (&lock) != 0) { puts ("child: mutex_lock failed"); return NULL; } return (void *) 42l; } static int do_test (void) { pthread_t th; if (pthread_mutex_lock (&lock) != 0) { puts ("mutex_lock failed"); exit (1); } if (pthread_create (&th, NULL, tf, NULL) != 0) { puts ("mutex_create failed"); exit (1); } void *status; int val = pthread_tryjoin_np (th, &status); if (val == 0) { puts ("1st tryjoin succeeded"); exit (1); } else if (val != EBUSY) { puts ("1st tryjoin didn't return EBUSY"); exit (1); } if (pthread_mutex_unlock (&lock) != 0) { puts ("mutex_unlock failed"); exit (1); } while ((val = pthread_tryjoin_np (th, &status)) != 0) { if (val != EBUSY) { printf ("tryjoin returned %s (%d), expected only 0 or EBUSY\n", strerror (val), val); exit (1); } /* Delay minimally. */ struct timespec ts = { .tv_sec = 0, .tv_nsec = 10000000 }; nanosleep (&ts, NULL); } if (status != (void *) 42l) { printf ("return value %p, expected %p\n", status, (void *) 42l); exit (1); } return 0; } #define TEST_FUNCTION do_test () #include "../test-skeleton.c"