1/* Copyright (C) 2004-2024 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
23static pthread_mutex_t m = PTHREAD_MUTEX_INITIALIZER;
24
25
26static void
27cl (void *p)
28{
29 pthread_mutex_unlock (mutex: &m);
30}
31
32
33static void *
34tf (void *arg)
35{
36 if (pthread_mutex_lock (mutex: &m) != 0)
37 {
38 puts (s: "2nd mutex_lock failed");
39 exit (1);
40 }
41
42 exit (0);
43}
44
45
46static int
47do_test (void)
48{
49 pthread_key_t k;
50 if (pthread_key_create (key: &k, destr_function: cl) != 0)
51 {
52 puts (s: "key_create failed");
53 return 1;
54 }
55 /* Use an arbitrary but valid pointer as the value. */
56 if (pthread_setspecific (key: k, pointer: (void *) &k) != 0)
57 {
58 puts (s: "setspecific failed");
59 return 1;
60 }
61
62 if (pthread_mutex_lock (mutex: &m) != 0)
63 {
64 puts (s: "1st mutex_lock failed");
65 return 1;
66 }
67
68 pthread_t th;
69 if (pthread_create (newthread: &th, NULL, start_routine: tf, NULL) != 0)
70 {
71 puts (s: "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

source code of glibc/sysdeps/pthread/tst-tsd5.c