libstdc++-v3/testsuite/22_locale/locale/cons/12658_thread-2.cc

   1 // { dg-do run }
   2 // { dg-options "-pthread"  }
   3 // { dg-require-effective-target pthread }
   4 // { dg-require-namedlocale "en_US.ISO8859-1" }
   5 // { dg-require-namedlocale "fr_FR.ISO8859-15" }
   6 // { dg-timeout-factor 2.0 { target hppa*-*-* } }
   7
   8 // Copyright (C) 2004-2023 Free Software Foundation, Inc.
   9 //
  10 // This file is part of the GNU ISO C++ Library.  This library is free
  11 // software; you can redistribute it and/or modify it under the
  12 // terms of the GNU General Public License as published by the
  13 // Free Software Foundation; either version 3, or (at your option)
  14 // any later version.
  15
  16 // This library is distributed in the hope that it will be useful,
  17 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  18 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  19 // GNU General Public License for more details.
  20
  21 // You should have received a copy of the GNU General Public License along
  22 // with this library; see the file COPYING3.  If not see
  23 // <http://www.gnu.org/licenses/>.
  24
  25 // 22.1.1.2 locale constructors and destructors [lib.locale.cons]
  26
  27 #include <locale>
  28 #include <pthread.h>
  29 #include <testsuite_hooks.h>
  30
  31 const int max_thread_count = 20;
  32 //const int max_loop_count = 1000000; // orig value
  33 const int max_loop_count = 100000;
  34 const int max_locales = 10;
  35 std::locale loc[max_locales];
  36
  37 void* thread_main(void*)
  38 {
  39   try
  40     {
  41       for (int i = 0; i < max_loop_count; ++i)
  42         {
  43           int k = i % max_locales;
  44           std::locale::global(loc[k]);
  45         }
  46     }
  47   catch (...) { }
  48   return 0;
  49 }
  50
  51 int
  52 main()
  53 {
  54   pthread_t tid[max_thread_count];
  55
  56   for (int j = 0; j < max_locales; ++j)
  57     loc[j] = std::locale(j % 2 ? ISO_8859(1,en_US) : ISO_8859(15,fr_FR));
  58
  59   for (int i = 0; i < max_thread_count; i++)
  60     pthread_create(&tid[i], 0, thread_main, 0);
  61
  62   for (int i = 0; i < max_thread_count; i++)
  63     pthread_join(tid[i], 0);
  64
  65   return 0;
  66 }