1/* Test that gettext() in multithreaded applications works correctly if
2 different threads operate in different locales with the same encoding.
3 Copyright (C) 2005-2022 Free Software Foundation, Inc.
4 This file is part of the GNU C Library.
5
6 The GNU C Library is free software; you can redistribute it and/or
7 modify it under the terms of the GNU Lesser General Public
8 License as published by the Free Software Foundation; either
9 version 2.1 of the License, or (at your option) any later version.
10
11 The GNU C Library is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 Lesser General Public License for more details.
15
16 You should have received a copy of the GNU Lesser General Public
17 License along with the GNU C Library; if not, see
18 <https://www.gnu.org/licenses/>. */
19
20#include <libintl.h>
21#include <locale.h>
22#include <pthread.h>
23#include <stdio.h>
24#include <stdlib.h>
25#include <string.h>
26
27/* Set to 1 if the program is not behaving correctly. */
28int result;
29
30/* Denotes which thread should run next. */
31int flipflop;
32/* Lock and wait queue used to switch between the threads. */
33pthread_mutex_t lock;
34pthread_cond_t waitqueue;
35
36/* Waits until the flipflop has a given value.
37 Before the call, the lock is unlocked. After the call, it is locked. */
38static void
39waitfor (int value)
40{
41 if (pthread_mutex_lock (mutex: &lock))
42 exit (10);
43 while (flipflop != value)
44 if (pthread_cond_wait (cond: &waitqueue, mutex: &lock))
45 exit (11);
46}
47
48/* Sets the flipflop to a given value.
49 Before the call, the lock is locked. After the call, it is unlocked. */
50static void
51setto (int value)
52{
53 flipflop = value;
54 if (pthread_cond_signal (cond: &waitqueue))
55 exit (20);
56 if (pthread_mutex_unlock (mutex: &lock))
57 exit (21);
58}
59
60void *
61thread1_execution (void *arg)
62{
63 char *s;
64
65 waitfor (value: 1);
66 uselocale (dataset: newlocale (LC_ALL_MASK, locale: "de_DE.ISO-8859-1", NULL));
67 setto (2);
68
69 waitfor (value: 1);
70 s = gettext ("beauty");
71 puts (s: s);
72 if (strcmp (s, "Sch\366nheit"))
73 {
74 fprintf (stderr, "thread 1 call 1 returned: %s\n", s);
75 result = 1;
76 }
77 setto (2);
78
79 waitfor (value: 1);
80 s = gettext ("beauty");
81 puts (s: s);
82 if (strcmp (s, "Sch\366nheit"))
83 {
84 fprintf (stderr, "thread 1 call 2 returned: %s\n", s);
85 result = 1;
86 }
87 setto (2);
88
89 return NULL;
90}
91
92void *
93thread2_execution (void *arg)
94{
95 char *s;
96
97 waitfor (value: 2);
98 uselocale (dataset: newlocale (LC_ALL_MASK, locale: "fr_FR.ISO-8859-1", NULL));
99 setto (1);
100
101 waitfor (value: 2);
102 s = gettext ("beauty");
103 puts (s: s);
104 if (strcmp (s, "beaut\351"))
105 {
106 fprintf (stderr, "thread 2 call 1 returned: %s\n", s);
107 result = 1;
108 }
109 setto (1);
110
111 waitfor (value: 2);
112 s = gettext ("beauty");
113 puts (s: s);
114 if (strcmp (s, "beaut\351"))
115 {
116 fprintf (stderr, "thread 2 call 2 returned: %s\n", s);
117 result = 1;
118 }
119 setto (1);
120
121 return NULL;
122}
123
124int
125main (void)
126{
127 pthread_t thread1;
128 pthread_t thread2;
129
130 unsetenv (name: "LANGUAGE");
131 unsetenv (name: "OUTPUT_CHARSET");
132 textdomain (domainname: "multithread");
133 bindtextdomain ("multithread", OBJPFX "domaindir");
134 result = 0;
135
136 flipflop = 1;
137 if (pthread_mutex_init (mutex: &lock, NULL))
138 exit (2);
139 if (pthread_cond_init (cond: &waitqueue, NULL))
140 exit (2);
141 if (pthread_create (newthread: &thread1, NULL, start_routine: &thread1_execution, NULL))
142 exit (2);
143 if (pthread_create (newthread: &thread2, NULL, start_routine: &thread2_execution, NULL))
144 exit (2);
145 if (pthread_join (th: thread2, NULL))
146 exit (3);
147
148 return result;
149}
150

source code of glibc/intl/tst-gettext4.c