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 <errno.h>
      19  #include <string.h>
      20  #include <unistd.h>
      21  #include "pthreadP.h"
      22  #include <shlib-compat.h>
      23  
      24  int
      25  __pthread_attr_destroy (pthread_attr_t *attr)
      26  {
      27    struct pthread_attr *iattr;
      28  
      29    iattr = (struct pthread_attr *) attr;
      30  
      31  #if SHLIB_COMPAT(libc, GLIBC_2_0, GLIBC_2_1)
      32    /* In old struct pthread_attr, the extension member is missing.  */
      33    if (__builtin_expect ((iattr->flags & ATTR_FLAG_OLDATTR), 0) == 0)
      34  #endif
      35      {
      36        if (iattr->extension != NULL)
      37          {
      38            free (iattr->extension->cpuset);
      39            free (iattr->extension);
      40          }
      41      }
      42  
      43    return 0;
      44  }
      45  libc_hidden_def (__pthread_attr_destroy)
      46  weak_alias (__pthread_attr_destroy, pthread_attr_destroy)