sysdeps/pthread/tst-tsd2.c

   1 /* Copyright (C) 2002-2023 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3
   4    The GNU C Library is free software; you can redistribute it and/or
   5    modify it under the terms of the GNU Lesser General Public
   6    License as published by the Free Software Foundation; either
   7    version 2.1 of the License, or (at your option) any later version.
   8
   9    The GNU C Library is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12    Lesser General Public License for more details.
  13
  14    You should have received a copy of the GNU Lesser General Public
  15    License along with the GNU C Library; if not, see
  16    <https://www.gnu.org/licenses/>.  */
  17
  18 #include <pthread.h>
  19 #include <stdio.h>
  20 #include <string.h>
  21
  22
  23 static int result;
  24
  25
  26 static void
  27 destr (void *arg)
  28 {
  29   if (arg != (void *) &result)
  30     result = 2;
  31   else
  32     result = 0;
  33 }
  34
  35
  36 static void *
  37 tf (void *arg)
  38 {
  39   pthread_key_t key = (pthread_key_t) (long int) arg;
  40   int err;
  41
  42   /* Use an arbitrary but valid pointer to avoid GCC warnings.  */
  43   err = pthread_setspecific (key, &result);
  44   if (err != 0)
  45     result = 3;
  46
  47   return NULL;
  48 }
  49
  50
  51 static int
  52 do_test (void)
  53 {
  54   pthread_key_t key;
  55   pthread_t th;
  56   int err;
  57
  58   err = pthread_key_create (&key, destr);
  59   if (err != 0)
  60     {
  61       printf ("key_create failed: %s\n", strerror (err));
  62       return 1;
  63     }
  64
  65   result = 1;
  66
  67   err = pthread_create (&th, NULL, tf, (void *) (long int) key);
  68   if (err != 0)
  69     {
  70       printf ("create failed: %s\n", strerror (err));
  71       return 1;
  72     }
  73
  74   /* Wait for the thread to terminate.  */
  75   err = pthread_join (th, NULL);
  76   if (err != 0)
  77     {
  78       printf ("join failed: %s\n", strerror (err));
  79       return 1;
  80     }
  81
  82   if (result == 1)
  83     puts ("destructor not called");
  84   else if (result == 2)
  85     puts ("destructor got passed a wrong value");
  86   else if (result == 3)
  87     puts ("setspecific in child failed");
  88   else if (result != 0)
  89     puts ("result != 0");
  90
  91   return result;
  92 }
  93
  94
  95 #define TEST_FUNCTION do_test ()
  96 #include "../test-skeleton.c"