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 <pthreadP.h>
      20  #include <shlib-compat.h>
      21  
      22  int
      23  ___pthread_mutexattr_settype (pthread_mutexattr_t *attr, int kind)
      24  {
      25    struct pthread_mutexattr *iattr;
      26  
      27    if (kind < PTHREAD_MUTEX_NORMAL || kind > PTHREAD_MUTEX_ADAPTIVE_NP)
      28      return EINVAL;
      29  
      30    /* Cannot distinguish between DEFAULT and NORMAL. So any settype
      31       call disables elision for now.  */
      32    if (kind == PTHREAD_MUTEX_NORMAL)
      33      kind |= PTHREAD_MUTEX_NO_ELISION_NP;
      34  
      35    iattr = (struct pthread_mutexattr *) attr;
      36  
      37    iattr->mutexkind = (iattr->mutexkind & PTHREAD_MUTEXATTR_FLAG_BITS) | kind;
      38  
      39    return 0;
      40  }
      41  versioned_symbol (libc, ___pthread_mutexattr_settype,
      42                    pthread_mutexattr_settype, GLIBC_2_34);
      43  libc_hidden_ver (___pthread_mutexattr_settype, __pthread_mutexattr_settype)
      44  #ifndef SHARED
      45  strong_alias (___pthread_mutexattr_settype, __pthread_mutexattr_settype)
      46  #endif
      47  
      48  #if OTHER_SHLIB_COMPAT (libpthread, GLIBC_2_0, GLIBC_2_34)
      49  compat_symbol (libpthread, ___pthread_mutexattr_settype,
      50                 pthread_mutexattr_setkind_np, GLIBC_2_0);
      51  compat_symbol (libpthread, ___pthread_mutexattr_settype,
      52                 __pthread_mutexattr_settype, GLIBC_2_0);
      53  #endif
      54  
      55  #if OTHER_SHLIB_COMPAT (libpthread, GLIBC_2_1, GLIBC_2_34)
      56  compat_symbol (libpthread, ___pthread_mutexattr_settype,
      57                 pthread_mutexattr_settype, GLIBC_2_1);
      58  #endif