* sysdeps/mach/i386/machine-lock.h (__spin_unlock, __spin_try_lock):
[glibc.git] / nptl / tst-_res1.c
blob651e3cc40d7830bafc3b3963cac8797a5a0b5198
1 /* Copyright (C) 2003 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
3 Contributed by Jakub Jelinek <jakub@redhat.com>, 2003.
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, write to the Free
17 Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
18 02111-1307 USA. */
20 /* Test whether _res in glibc 2.1.x and earlier (before __res_state()
21 was introduced) works. Portable programs should never do the
22 dirty things below. */
24 #include <pthread.h>
25 #include <resolv.h>
26 #include <stdlib.h>
27 #include <stdio.h>
29 void *tf (void *resp)
31 if (resp == &_res || resp == __res_state ())
32 abort ();
33 _res.retry = 24;
34 return NULL;
37 void do_test (struct __res_state *resp)
39 if (resp != &_res || resp != __res_state ())
40 abort ();
41 if (_res.retry != 12)
42 abort ();
45 int main (void)
47 #undef _res
48 extern struct __res_state _res;
49 pthread_t th;
51 _res.retry = 12;
52 if (pthread_create (&th, NULL, tf, &_res) != 0)
54 puts ("create failed");
55 exit (1);
58 do_test (&_res);
60 if (pthread_join (th, NULL) != 0)
62 puts ("join failed");
63 exit (1);
66 do_test (&_res);
68 exit (0);