1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
|
/* Multithread-safety test for setlocale_null_r (LC_ALL, ...).
Copyright (C) 2019-2022 Free Software Foundation, Inc.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>. */
/* Written by Bruno Haible <bruno@clisp.org>, 2019. */
#include <config.h>
/* Work around GCC bug 44511. */
#if 4 < __GNUC__ + (3 <= __GNUC_MINOR__)
# pragma GCC diagnostic ignored "-Wreturn-type"
#endif
#if USE_ISOC_THREADS || USE_POSIX_THREADS || USE_ISOC_AND_POSIX_THREADS || USE_WINDOWS_THREADS
/* Specification. */
#include <locale.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include "glthread/thread.h"
/* We want to use the system's setlocale() function here, not the gnulib
override. */
#undef setlocale
/* Some common locale names. */
#if defined _WIN32 && !defined __CYGWIN__
# define ENGLISH "English_United States"
# define GERMAN "German_Germany"
# define FRENCH "French_France"
# define ENCODING ".1252"
#else
# define ENGLISH "en_US"
# define GERMAN "de_DE"
# define FRENCH "fr_FR"
# if defined __sgi
# define ENCODING ".ISO8859-15"
# elif defined __hpux
# define ENCODING ".utf8"
# else
# define ENCODING ".UTF-8"
# endif
#endif
static const char LOCALE1[] = ENGLISH ENCODING;
static const char LOCALE2[] = GERMAN ENCODING;
static const char LOCALE3[] = FRENCH ENCODING;
static char *expected;
static void *
thread1_func (void *arg)
{
for (;;)
{
char buf[SETLOCALE_NULL_ALL_MAX];
if (setlocale_null_r (LC_ALL, buf, sizeof (buf)))
abort ();
if (strcmp (expected, buf) != 0)
{
fprintf (stderr, "thread1 disturbed by thread2!\n"); fflush (stderr);
abort ();
}
}
/*NOTREACHED*/
}
static void *
thread2_func (void *arg)
{
for (;;)
{
char buf[SETLOCALE_NULL_ALL_MAX];
setlocale_null_r (LC_NUMERIC, buf, sizeof (buf));
setlocale_null_r (LC_ALL, buf, sizeof (buf));
}
/*NOTREACHED*/
}
int
main (int argc, char *argv[])
{
if (setlocale (LC_ALL, LOCALE1) == NULL)
{
fprintf (stderr, "Skipping test: LOCALE1 not recognized\n");
return 77;
}
if (setlocale (LC_NUMERIC, LOCALE2) == NULL)
{
fprintf (stderr, "Skipping test: LOCALE2 not recognized\n");
return 77;
}
if (setlocale (LC_TIME, LOCALE3) == NULL)
{
fprintf (stderr, "Skipping test: LOCALE3 not recognized\n");
return 77;
}
expected = strdup (setlocale (LC_ALL, NULL));
/* Create the two threads. */
gl_thread_create (thread1_func, NULL);
gl_thread_create (thread2_func, NULL);
/* Let them run for 5 seconds. */
{
struct timespec duration;
duration.tv_sec = 5;
duration.tv_nsec = 0;
nanosleep (&duration, NULL);
}
return 0;
}
#else
/* No multithreading available. */
#include <stdio.h>
int
main ()
{
fputs ("Skipping test: multithreading not enabled\n", stderr);
return 77;
}
#endif
/* Without locking, the results of this test would be:
glibc OK
musl libc crash < 10 sec
macOS crash < 1 sec
FreeBSD crash < 1 sec
NetBSD crash < 2 sec
OpenBSD crash < 1 sec
AIX crash < 2 sec
HP-UX OK
IRIX OK
Solaris 10 OK
Solaris 11.0 OK
Solaris 11.4 OK
Solaris OpenIndiana OK
Haiku crash < 1 sec
Cygwin crash < 1 sec
mingw OK
MSVC OK (assuming compiler option /MD !)
*/
|
