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
   7 // Copyright (C) 2004-2020 Free Software Foundation, Inc.
   8 //
   9 // This file is part of the GNU ISO C++ Library.  This library is free
  10 // software; you can redistribute it and/or modify it under the
  11 // terms of the GNU General Public License as published by the
  12 // Free Software Foundation; either version 3, or (at your option)
  13 // any later version.
  14
  15 // This library is distributed in the hope that it will be useful,
  16 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  17 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18 // GNU General Public License for more details.
  19
  20 // You should have received a copy of the GNU General Public License along
  21 // with this library; see the file COPYING3.  If not see
  22 // <http://www.gnu.org/licenses/>.
  23
  24 // 22.1.1.2 locale constructors and destructors [lib.locale.cons]
  25
  26 #include <locale>
  27 #include <pthread.h>
  28 #include <testsuite_hooks.h>
  29
  30 const int max_thread_count = 20;
  31 //const int max_loop_count = 1000000; // orig value
  32 const int max_loop_count = 100000;
  33 const int max_locales = 10;
  34 std::locale loc[max_locales];
  35
  36 void* thread_main(void*)
  37 {
  38   try
  39     {
  40       for (int i = 0; i < max_loop_count; ++i)
  41         {
  42           int k = i % max_locales;
  43           std::locale::global(loc[k]);
  44         }
  45     }
  46   catch (...) { }
  47   return 0;
  48 }
  49
  50 int
  51 main()
  52 {
  53   pthread_t tid[max_thread_count];
  54
  55   for (int j = 0; j < max_locales; ++j)
  56     loc[j] = std::locale(j % 2 ? ISO_8859(1,en_US) : ISO_8859(15,fr_FR));
  57
  58   for (int i = 0; i < max_thread_count; i++)
  59     pthread_create(&tid[i], 0, thread_main, 0);
  60
  61   for (int i = 0; i < max_thread_count; i++)
  62     pthread_join(tid[i], 0);
  63
  64   return 0;
  65 }