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path: root/nptl/pthread_condattr_setpshared.c
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/* Copyright (C) 2002-2023 Free Software Foundation, Inc.
   This file is part of the GNU C Library.

   The GNU C Library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Lesser General Public
   License as published by the Free Software Foundation; either
   version 2.1 of the License, or (at your option) any later version.

   The GNU C Library is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   Lesser General Public License for more details.

   You should have received a copy of the GNU Lesser General Public
   License along with the GNU C Library; if not, see
   <https://www.gnu.org/licenses/>.  */

#include <errno.h>
#include <pthreadP.h>
#include <futex-internal.h>
#include <shlib-compat.h>

int
__pthread_condattr_setpshared (pthread_condattr_t *attr, int pshared)
{
  int err = futex_supports_pshared (pshared);
  if (err != 0)
    return err;

  int *valuep = &((struct pthread_condattr *) attr)->value;

  *valuep = (*valuep & ~1) | (pshared != PTHREAD_PROCESS_PRIVATE);

  return 0;
}
versioned_symbol (libc, __pthread_condattr_setpshared,
                  pthread_condattr_setpshared, GLIBC_2_34);

#if OTHER_SHLIB_COMPAT (libpthread, GLIBC_2_2, GLIBC_2_34)
compat_symbol (libpthread, __pthread_condattr_setpshared,
               pthread_condattr_setpshared, GLIBC_2_2);
#endif