nptl/tst-tsd4.c

   1 /* Copyright (C) 2003 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3    Contributed by Ulrich Drepper <drepper@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 #include <limits.h>
  21 #include <pthread.h>
  22 #include <stdio.h>
  23 #include <stdlib.h>
  24 #include <unistd.h>
  25
  26
  27 static pthread_key_t key;
  28
  29
  30 static int rounds;
  31
  32
  33 static void
  34 destr (void *arg)
  35 {
  36   ++rounds;
  37
  38   if (pthread_setspecific (key, (void *) 1l) != 0)
  39     {
  40       puts ("destr: setspecific failed");
  41       exit (1);
  42     }
  43 }
  44
  45
  46 static void *
  47 tf (void *arg)
  48 {
  49   if (pthread_setspecific (key, (void *) 1l) != 0)
  50     {
  51       puts ("tf: setspecific failed");
  52       exit (1);
  53     }
  54
  55   return NULL;
  56 }
  57
  58
  59 /* This test check non-standard behavior.  The standard does not
  60    require that the implementation has to stop calling TSD destructors
  61    when they are set over and over again.  But NPTL does.  */
  62 static int
  63 do_test (void)
  64 {
  65   /* Allocate two keys, both with destructors.  */
  66   if (pthread_key_create (&key, destr) != 0)
  67     {
  68       puts ("key_create failed");
  69       return 1;
  70     }
  71
  72   pthread_t th;
  73   if (pthread_create (&th, NULL, tf, NULL) != 0)
  74     {
  75       puts ("create failed");
  76       return 1;
  77     }
  78
  79   if (pthread_join (th, NULL) != 0)
  80     {
  81       puts ("join failed");
  82       return 1;
  83     }
  84
  85   if (rounds < PTHREAD_DESTRUCTOR_ITERATIONS)
  86     {
  87       printf ("rounds == %d, PTHREAD_DESTRUCTOR_ITERATIONS = %d\n",
  88               rounds, PTHREAD_DESTRUCTOR_ITERATIONS);
  89       return 1;
  90     }
  91
  92   if (pthread_getspecific (key) != NULL)
  93     {
  94       puts ("key data != NULL");
  95       return 1;
  96     }
  97
  98   return 0;
  99 }
 100
 101
 102 #define TEST_FUNCTION do_test ()
 103 #include "../test-skeleton.c"