nptl/tst-tsd5.c

   1 /* Copyright (C) 2004-2020 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3    Contributed by Ulrich Drepper <drepper@redhat.com>, 2004.
   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, see
  17    <https://www.gnu.org/licenses/>.  */
  18
  19 #include <pthread.h>
  20 #include <stdio.h>
  21 #include <stdlib.h>
  22
  23
  24 static pthread_mutex_t m = PTHREAD_MUTEX_INITIALIZER;
  25
  26
  27 static void
  28 cl (void *p)
  29 {
  30   pthread_mutex_unlock (&m);
  31 }
  32
  33
  34 static void *
  35 tf (void *arg)
  36 {
  37   if (pthread_mutex_lock (&m) != 0)
  38     {
  39       puts ("2nd mutex_lock failed");
  40       exit (1);
  41     }
  42
  43   exit (0);
  44 }
  45
  46
  47 static int
  48 do_test (void)
  49 {
  50   pthread_key_t k;
  51   if (pthread_key_create (&k, cl) != 0)
  52     {
  53       puts ("key_create failed");
  54       return 1;
  55     }
  56   if (pthread_setspecific (k, (void *) 1) != 0)
  57     {
  58       puts ("setspecific failed");
  59       return 1;
  60     }
  61
  62   if (pthread_mutex_lock (&m) != 0)
  63     {
  64       puts ("1st mutex_lock failed");
  65       return 1;
  66     }
  67
  68   pthread_t th;
  69   if (pthread_create (&th, NULL, tf, NULL) != 0)
  70     {
  71       puts ("create failed");
  72       return 1;
  73     }
  74
  75   pthread_exit (NULL);
  76 }
  77
  78
  79 #define TEST_FUNCTION do_test ()
  80 #include "../test-skeleton.c"