hurd: Bump remaining LGPL2+ htl licences to LGPL 2.1+

[thirdparty/glibc.git] / sysdeps / htl / sem-destroy.c

/* Destroy a semaphore.  Generic version.
   Copyright (C) 2005-2018 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
   <http://www.gnu.org/licenses/>.  */

#include <semaphore.h>
#include <errno.h>

#include <pt-internal.h>

int
__sem_destroy (sem_t *sem)
{
  if (sem->__queue)
    /* There are threads waiting on *SEM.  */
    {
      errno = EBUSY;
      return -1;
    }

  return 0;
}

strong_alias (__sem_destroy, sem_destroy);