linuxthreads/tststack.c

   1 /* Tests for variable stack size handling.
   2    Copyright (C) 2000, 2003 Free Software Foundation, Inc.
   3    Contributed by Ulrich Drepper <drepper@redhat.com>, 2000.
   4
   5    The GNU C Library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Lesser General Public License as
   7    published by the Free Software Foundation; either version 2.1 of the
   8    License, or (at your option) any later version.
   9
  10    The GNU C Library is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13    Lesser General Public License for more details.
  14
  15    You should have received a copy of the GNU Lesser General Public
  16    License along with the GNU C Library; see the file COPYING.LIB.  If not,
  17    write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  18    Boston, MA 02111-1307, USA.  */
  19
  20 #include <pthread.h>
  21 #include <stdio.h>
  22 #include <unistd.h>
  23 #include <limits.h>
  24 #include <sys/param.h>
  25
  26 static void *f1 (void *);
  27 static void *f2 (void *);
  28
  29 int
  30 main (void)
  31 {
  32   pthread_attr_t attr;
  33   pthread_t th1 = 0;
  34   pthread_t th2 = 0;
  35   void *res1;
  36   void *res2;
  37
  38   pthread_attr_init (&attr);
  39   if (pthread_attr_setstacksize (&attr, MAX (70*1024, PTHREAD_STACK_MIN)) != 0)
  40     {
  41       puts ("invalid stack size");
  42       return 1;
  43     }
  44
  45   pthread_create (&th1, NULL, f1, NULL);
  46   pthread_create (&th2, &attr, f2, NULL);
  47
  48   pthread_join (th1, &res1);
  49   pthread_join (th2, &res2);
  50
  51   printf ("res1 = %p\n", res1);
  52   printf ("res2 = %p\n", res2);
  53
  54   return res1 != (void *) 1 || res2 != (void *) 2;
  55 }
  56
  57 static void *
  58 f1 (void *parm)
  59 {
  60   printf ("This is `%s'\n", __FUNCTION__);
  61   fflush (stdout);
  62
  63   return (void *) 1;
  64 }
  65
  66 static void *
  67 f2 (void *parm)
  68 {
  69   printf ("This is `%s'\n", __FUNCTION__);
  70   fflush (stdout);
  71   sleep (1);
  72
  73   return (void *) 2;
  74 }