nptl/tst-stack3.c

   1 /* Copyright (C) 2003, 2004 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3    Contributed by Jakub Jelinek <jakub@redhat.com>, 2003.
   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
   7    License as published by the Free Software Foundation; either
   8    version 2.1 of the 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; if not, write to the Free
  17    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  18    02111-1307 USA.  */
  19
  20 /* Test whether pthread_create/pthread_join with user defined stacks
  21    doesn't leak memory.
  22    NOTE: this tests functionality beyond POSIX.  In POSIX user defined
  23    stacks cannot be ever freed once used by pthread_create nor they can
  24    be reused for other thread.  */
  25
  26 #include <limits.h>
  27 #include <mcheck.h>
  28 #include <pthread.h>
  29 #include <stdlib.h>
  30 #include <stdio.h>
  31 #include <string.h>
  32 #include <unistd.h>
  33
  34 static int seen;
  35
  36 static void *
  37 tf (void *p)
  38 {
  39   ++seen;
  40   return NULL;
  41 }
  42
  43 static int
  44 do_test (void)
  45 {
  46   mtrace ();
  47
  48   void *stack;
  49   int res = posix_memalign (&stack, getpagesize (), 4 * PTHREAD_STACK_MIN);
  50   if (res)
  51     {
  52       printf ("malloc failed %s\n", strerror (res));
  53       return 1;
  54     }
  55
  56   pthread_attr_t attr;
  57   pthread_attr_init (&attr);
  58
  59   int result = 0;
  60   res = pthread_attr_setstack (&attr, stack, 4 * PTHREAD_STACK_MIN);
  61   if (res)
  62     {
  63       printf ("pthread_attr_setstack failed %d\n", res);
  64       result = 1;
  65     }
  66
  67   for (int i = 0; i < 16; ++i)
  68     {
  69       /* Create the thread.  */
  70       pthread_t th;
  71       res = pthread_create (&th, &attr, tf, NULL);
  72       if (res)
  73         {
  74           printf ("pthread_create failed %d\n", res);
  75           result = 1;
  76         }
  77       else
  78         {
  79           res = pthread_join (th, NULL);
  80           if (res)
  81             {
  82               printf ("pthread_join failed %d\n", res);
  83               result = 1;
  84             }
  85         }
  86     }
  87
  88   pthread_attr_destroy (&attr);
  89
  90   if (seen != 16)
  91     {
  92       printf ("seen %d != 16\n", seen);
  93       result = 1;
  94     }
  95
  96   free (stack);
  97   return result;
  98 }
  99
 100 #define TEST_FUNCTION do_test ()
 101 #include "../test-skeleton.c"