/* Copyright (C) 2003 Free Software Foundation, Inc. This file is part of the GNU C Library. Contributed by Ulrich Drepper <drepper@redhat.com>, 2003. 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 void * tf1 (void *arg) { pthread_join ((pthread_t) arg, NULL); puts ("1st join returned"); return (void *) 1l; } static void * tf2 (void *arg) { int a; a = pthread_join ((pthread_t) arg, NULL); puts ("2nd join returned"); printf("a = %i\n", a); return (void *) 1l; } static int do_test (void) { pthread_t th; int err = pthread_join (pthread_self (), NULL); if (err == 0) { puts ("1st circular join succeeded"); exit (1); } if (err != EDEADLK) { printf ("1st circular join %d, not EDEADLK\n", err); exit (1); } if (pthread_create (&th, NULL, tf1, (void *) pthread_self ()) != 0) { puts ("1st create failed"); exit (1); } if (pthread_cancel (th) != 0) { puts ("cannot cancel 1st thread"); exit (1); } void *r; err = pthread_join (th, &r); if (err != 0) { printf ("cannot join 1st thread: %d\n", err); exit (1); } if (r != PTHREAD_CANCELED) { puts ("1st thread not canceled"); exit (1); } err = pthread_join (pthread_self (), NULL); if (err == 0) { puts ("2nd circular join succeeded"); exit (1); } if (err != EDEADLK) { printf ("2nd circular join %d, not EDEADLK\n", err); exit (1); } if (pthread_create (&th, NULL, tf2, (void *) pthread_self ()) != 0) { puts ("2nd create failed"); exit (1); } if (pthread_cancel (th) != 0) { puts ("cannot cancel 2nd thread"); exit (1); } if (pthread_join (th, &r) != 0) { puts ("cannot join 2nd thread"); exit (1); } if (r != PTHREAD_CANCELED) { puts ("2nd thread not canceled"); exit (1); } err = pthread_join (pthread_self (), NULL); if (err == 0) { puts ("2nd circular join succeeded"); exit (1); } if (err != EDEADLK) { printf ("2nd circular join %d, not EDEADLK\n", err); exit (1); } exit (0); } #define TEST_FUNCTION do_test () #include "../test-skeleton.c"