libstdc++-v3/testsuite/thread/pthread3.cc

   1 // 2002-01-23  Loren J. Rittle <rittle@labs.mot.com> <ljrittle@acm.org>
   2 // Adpated from libstdc++/5347 submitted by markus.breuer@materna.de
   3 //
   4 // Copyright (C) 2002, 2003 Free Software Foundation, Inc.
   5 //
   6 // This file is part of the GNU ISO C++ Library.  This library is free
   7 // software; you can redistribute it and/or modify it under the
   8 // terms of the GNU General Public License as published by the
   9 // Free Software Foundation; either version 2, or (at your option)
  10 // any later version.
  11 //
  12 // This library is distributed in the hope that it will be useful,
  13 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 // GNU General Public License for more details.
  16 //
  17 // You should have received a copy of the GNU General Public License along
  18 // with this library; see the file COPYING.  If not, write to the Free
  19 // Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
  20 // USA.
  21
  22 // { dg-do run { target *-*-freebsd* *-*-netbsd* *-*-linux* *-*-solaris* *-*-cygwin *-*-darwin* alpha*-*-osf* } }
  23 // { dg-options "-pthread" { target *-*-freebsd* *-*-netbsd* *-*-linux* alpha*-*-osf* } }
  24 // { dg-options "-pthreads" { target *-*-solaris* } }
  25
  26 #include <sstream>
  27
  28 // Do not include <pthread.h> explicitly; if threads are properly
  29 // configured for the port, then it is picked up free from STL headers.
  30
  31 const int max_thread_count = 2;
  32 const int max_loop_count = 1000000;
  33
  34 void*
  35 thread_main (void *)
  36 {
  37    for (int i = 0; i < max_loop_count; i++)
  38      std::ostringstream oss;
  39
  40    return 0;
  41 }
  42
  43 int
  44 main()
  45 {
  46   pthread_t tid[max_thread_count];
  47
  48 #if defined(__sun) && defined(__svr4__) && _XOPEN_VERSION >= 500
  49   pthread_setconcurrency (max_thread_count);
  50 #endif
  51
  52   for (int i = 0; i < max_thread_count; i++)
  53     pthread_create (&tid[i], NULL, thread_main, 0);
  54
  55   for (int i = 0; i < max_thread_count; i++)
  56     pthread_join (tid[i], NULL);
  57
  58   return 0;
  59 }