summaryrefslogtreecommitdiffstats
path: root/gnulib-tests/test-setlocale_null-mt-one.c
blob: 9320efd66bafdd7c54b7832673be0b5b5af3c74c (plain)
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_xxx, ...).
   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_MAX];

      if (setlocale_null_r (LC_NUMERIC, 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_MAX];

      setlocale_null_r (LC_NUMERIC, buf, sizeof (buf));
      setlocale_null_r (LC_TIME, 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_NUMERIC, NULL));

  /* Create the two threads.  */
  gl_thread_create (thread1_func, NULL);
  gl_thread_create (thread2_func, NULL);

  /* Let them run for 2 seconds.  */
  {
    struct timespec duration;
    duration.tv_sec = 2;
    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            OK
macOS                OK
FreeBSD              OK
NetBSD               OK
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                OK
Cygwin               OK
mingw                OK
MSVC                 OK (assuming compiler option /MD !)
*/