pthread3.cc

俄罗斯高人Mamaich的Pocket gcc编译器（运行在PocketPC上）的全部源代码。

// 2002-01-23  Loren J. Rittle <[e-mail]> <[e-mail]>
// Adpated from libstdc++/5347 submitted by [e-mail]
//
// Copyright (C) 2002, 2003 Free Software Foundation, Inc.
//
// 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.

// { dg-do run { target *-*-freebsd* *-*-netbsd* *-*-linux* *-*-solaris* *-*-cygwin *-*-darwin* } }
// { dg-options "-pthread" { target *-*-freebsd* *-*-netbsd* *-*-linux* } }
// { dg-options "-pthreads" { target *-*-solaris* } }

#include <sstream>

// Do not include <pthread.h> explicitly; if threads are properly
// configured for the port, then it is picked up free from STL headers.

#if __GTHREADS

const int max_thread_count = 2;
const int max_loop_count = 1000000;

void*
thread_main (void *)
{
   for (int i = 0; i < max_loop_count; i++)
     std::ostringstream oss;

   return 0;
}

int
main()
{
  pthread_t tid[max_thread_count];

#if defined(__sun) && defined(__svr4__)
  pthread_setconcurrency (max_thread_count);
#endif

  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;
}
#else
int main (void) {}
#endif