sysdeps/pthread/tst-rwlock13.c

   1 /* Copyright (C) 2004-2024 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
  24 do_test (void)
  25 {
  26   pthread_rwlock_t r;
  27   int ret;
  28
  29   memset (&r, 0xaa, sizeof (r));
  30   if ((ret = pthread_rwlock_init (&r, NULL)) != 0)
  31     {
  32       printf ("rwlock_init failed: %d\n", ret);
  33       return 1;
  34     }
  35
  36   if ((ret = pthread_rwlock_rdlock (&r)) != 0)
  37     {
  38       printf ("rwlock_rdlock failed: %d\n", ret);
  39       return 1;
  40     }
  41
  42   if ((ret = pthread_rwlock_unlock (&r)) != 0)
  43     {
  44       printf ("rwlock_unlock failed: %d\n", ret);
  45       return 1;
  46     }
  47
  48   if ((ret = pthread_rwlock_wrlock (&r)) != 0)
  49     {
  50       printf ("rwlock_wrlock failed: %d\n", ret);
  51       return 1;
  52     }
  53
  54   if ((ret = pthread_rwlock_unlock (&r)) != 0)
  55     {
  56       printf ("second rwlock_unlock failed: %d\n", ret);
  57       return 1;
  58     }
  59
  60   if ((ret = pthread_rwlock_destroy (&r)) != 0)
  61     {
  62       printf ("second rwlock_destroy failed: %d\n", ret);
  63       return 1;
  64     }
  65
  66   return 0;
  67 }
  68
  69 #define TEST_FUNCTION do_test ()
  70 #include "../test-skeleton.c"