1  /* Copyright (C) 2004-2023 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
      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"