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re PR libstdc++/12658 (Thread safety problems in locale::global() and locale::locale())

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2004-03-08  Petur Runolfsson  <peturr02@ru.is>

	PR libstdc++/12658
	* testsuite/22_locale/locale/cons/12658_thread.cc: New.

From-SVN: r79128
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Petur Runolfsson 2004-03-08 22:11:47 +00:00 committed by Benjamin Kosnik
parent e697b20f79
commit 5a66cfb2f1
2 changed files with 69 additions and 0 deletions
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libstdc++-v3/ChangeLog
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2004-03-08 Petur Runolfsson <peturr02@ru.is>
PR libstdc++/12658
* testsuite/22_locale/locale/cons/12658_thread.cc: New.
2004-03-08 Paolo Carlini <pcarlini@suse.de>
* docs/html/ext/howto.html: Add entry for DR 103 [WP].

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libstdc++-v3/testsuite/22_locale/locale/cons/12658_thread.cc Normal file
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// { dg-do run { target *-*-freebsd* *-*-netbsd* *-*-linux* *-*-solaris* *-*-cygwin *-*-darwin* alpha*-*-osf* } }
// { dg-options "-pthread" { target *-*-freebsd* *-*-netbsd* *-*-linux* alpha*-*-osf* } }
// { dg-options "-pthreads" { target *-*-solaris* } }
// Copyright (C) 2004 Free Software Foundation
//
// This file is part of the GNU ISO C++ Library. This library 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 2, or (at your option)
// any later version.
// This library 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 library; see the file COPYING. If not, write to the Free
// Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
// USA.
// 22.1.1.2 locale constructors and destructors [lib.locale.cons]
#include <locale>
#include <pthread.h>
const int max_thread_count = 20;
//const int max_loop_count = 1000000; // orig value
const int max_loop_count = 100000;
const int max_locales = 10;
void* thread_main(void*)
{
std::locale loc_c = std::locale::classic();
std::locale loc[max_locales];
for (int j = 0; j < max_locales; ++j)
loc[j] = std::locale(j % 2 ? "en_US" : "fr_FR");
for (int i = 0; i < max_loop_count; ++i)
{
int k = i % max_locales;
loc[k] = std::locale::global(loc[k]);
if (i % 37 == 0)
loc[k] = loc[k].combine<std::ctype<char> >(loc_c);
}
return 0;
}
int
main()
{
pthread_t tid[max_thread_count];
for (int i = 0; i < max_thread_count; i++)
pthread_create (&tid[i], NULL, thread_main, 0);
for (int i = 0; i < max_thread_count; i++)
pthread_join (tid[i], NULL);
return 0;
}