linuxthreads/tststack.c

   1 /* Tests for variable stack size handling.
   2    Copyright (C) 2000 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 Library General Public License as
   7    published by the Free Software Foundation; either version 2 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    Library General Public License for more details.
  14
  15    You should have received a copy of the GNU Library 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
  24 static void *f1 (void *);
  25 static void *f2 (void *);
  26
  27 int
  28 main (void)
  29 {
  30   pthread_attr_t attr;
  31   pthread_t th1 = 0;
  32   pthread_t th2 = 0;
  33   void *res1;
  34   void *res2;
  35
  36   pthread_attr_init (&attr);
  37   if (pthread_attr_setstacksize (&attr, 70*1024) != 0)
  38     {
  39       puts ("invalid stack size");
  40       return 1;
  41     }
  42
  43   pthread_create (&th1, NULL, f1, NULL);
  44   pthread_create (&th2, &attr, f2, NULL);
  45
  46   pthread_join (th1, &res1);
  47   pthread_join (th2, &res2);
  48
  49   printf ("res1 = %p\n", res1);
  50   printf ("res2 = %p\n", res2);
  51
  52   return res1 != (void *) 1 || res2 != (void *) 2;
  53 }
  54
  55 static void *
  56 f1 (void *parm)
  57 {
  58   printf ("This is `%s'\n", __FUNCTION__);
  59   fflush (stdout);
  60
  61   return (void *) 1;
  62 }
  63
  64 static void *
  65 f2 (void *parm)
  66 {
  67   printf ("This is `%s'\n", __FUNCTION__);
  68   fflush (stdout);
  69   sleep (1);
  70
  71   return (void *) 2;
  72 }