1 /* Copyright (C) 2004-2022 Free Software Foundation, Inc.
2    This file is part of the GNU C Library.
3 
4    The GNU C Library is free software; you can redistribute it and/or
5    modify it under the terms of the GNU Lesser General Public
6    License as published by the Free Software Foundation; either
7    version 2.1 of the License, or (at your option) any later version.
8 
9    The GNU C Library is distributed in the hope that it will be useful,
10    but WITHOUT ANY WARRANTY; without even the implied warranty of
11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
12    Lesser General Public License for more details.
13 
14    You should have received a copy of the GNU Lesser General Public
15    License along with the GNU C Library; if not, see
16    <https://www.gnu.org/licenses/>.  */
17 
18 #include <pthread.h>
19 #include <stdio.h>
20 #include <stdlib.h>
21 
22 
23 static pthread_mutex_t m = PTHREAD_MUTEX_INITIALIZER;
24 
25 
26 static void
cl(void * p)27 cl (void *p)
28 {
29   pthread_mutex_unlock (&m);
30 }
31 
32 
33 static void *
tf(void * arg)34 tf (void *arg)
35 {
36   if (pthread_mutex_lock (&m) != 0)
37     {
38       puts ("2nd mutex_lock failed");
39       exit (1);
40     }
41 
42   exit (0);
43 }
44 
45 
46 static int
do_test(void)47 do_test (void)
48 {
49   pthread_key_t k;
50   if (pthread_key_create (&k, cl) != 0)
51     {
52       puts ("key_create failed");
53       return 1;
54     }
55   /* Use an arbitrary but valid pointer as the value.  */
56   if (pthread_setspecific (k, (void *) &k) != 0)
57     {
58       puts ("setspecific failed");
59       return 1;
60     }
61 
62   if (pthread_mutex_lock (&m) != 0)
63     {
64       puts ("1st mutex_lock failed");
65       return 1;
66     }
67 
68   pthread_t th;
69   if (pthread_create (&th, NULL, tf, NULL) != 0)
70     {
71       puts ("create failed");
72       return 1;
73     }
74 
75   pthread_exit (NULL);
76 }
77 
78 
79 #define TEST_FUNCTION do_test ()
80 #include "../test-skeleton.c"
81