intl/tst-gettext4.c

   1 /* Test that gettext() in multithreaded applications works correctly if
   2    different threads operate in different locales with the same encoding.
   3    Copyright (C) 2005-2023 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.  */
  28 int result;
  29
  30 /* Denotes which thread should run next.  */
  31 int flipflop;
  32 /* Lock and wait queue used to switch between the threads.  */
  33 pthread_mutex_t lock;
  34 pthread_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.  */
  38 static void
  39 waitfor (int value)
  40 {
  41   if (pthread_mutex_lock (&lock))
  42     exit (10);
  43   while (flipflop != value)
  44     if (pthread_cond_wait (&waitqueue, &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.  */
  50 static void
  51 setto (int value)
  52 {
  53   flipflop = value;
  54   if (pthread_cond_signal (&waitqueue))
  55     exit (20);
  56   if (pthread_mutex_unlock (&lock))
  57     exit (21);
  58 }
  59
  60 void *
  61 thread1_execution (void *arg)
  62 {
  63   char *s;
  64
  65   waitfor (1);
  66   uselocale (newlocale (LC_ALL_MASK, "de_DE.ISO-8859-1", NULL));
  67   setto (2);
  68
  69   waitfor (1);
  70   s = gettext ("beauty");
  71   puts (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 (1);
  80   s = gettext ("beauty");
  81   puts (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
  92 void *
  93 thread2_execution (void *arg)
  94 {
  95   char *s;
  96
  97   waitfor (2);
  98   uselocale (newlocale (LC_ALL_MASK, "fr_FR.ISO-8859-1", NULL));
  99   setto (1);
 100
 101   waitfor (2);
 102   s = gettext ("beauty");
 103   puts (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 (2);
 112   s = gettext ("beauty");
 113   puts (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
 124 int
 125 main (void)
 126 {
 127   pthread_t thread1;
 128   pthread_t thread2;
 129
 130   unsetenv ("LANGUAGE");
 131   unsetenv ("OUTPUT_CHARSET");
 132   textdomain ("multithread");
 133   bindtextdomain ("multithread", OBJPFX "domaindir");
 134   result = 0;
 135
 136   flipflop = 1;
 137   if (pthread_mutex_init (&lock, NULL))
 138     exit (2);
 139   if (pthread_cond_init (&waitqueue, NULL))
 140     exit (2);
 141   if (pthread_create (&thread1, NULL, &thread1_execution, NULL))
 142     exit (2);
 143   if (pthread_create (&thread2, NULL, &thread2_execution, NULL))
 144     exit (2);
 145   if (pthread_join (thread2, NULL))
 146     exit (3);
 147
 148   return result;
 149 }