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[thirdparty/glibc.git] / sysdeps / htl / bits / semaphore.h

/* Semaphore type.  Generic version.
   Copyright (C) 2005-2024 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/>.  */

#ifndef _BITS_SEMAPHORE_H
#define _BITS_SEMAPHORE_H	1

#ifndef _SEMAPHORE_H
# error Never include <bits/semaphore.h> directly.
#endif

#include <bits/types/__pthread_spinlock_t.h>
#include <bits/pthread.h>

/* User visible part of a semaphore.  */

#define __SIZEOF_SEM_T	20

typedef union
{
  char __size[__SIZEOF_SEM_T];
  long int __align;
} sem_t;

#define SEM_FAILED ((void *) 0)

#endif /* bits/semaphore.h */