/* Copyright (C) 1995-1999, 2000, 2002 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, write to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */

#ifndef _SYS_SHM_H
#define _SYS_SHM_H 1

#include <features.h>

#define __need_size_t
#include <stddef.h>

/* Get common definition of System V style IPC. */
#include <sys/ipc.h>

/* Get system dependent definition of `struct shmid_ds' and more. */
#include <bits/shm.h>

/* Define types required by the standard. */
#define __need_time_t
#include <time.h>

#ifdef __USE_XOPEN
# ifndef __pid_t_defined
typedef __pid_t pid_t;
# define __pid_t_defined
# endif
#endif /* X/Open */


__BEGIN_DECLS

/* The following System V style IPC functions implement a shared memory
facility. The definition is found in XPG4.2. */

/* Shared memory control operation. */
extern int shmctl (int __shmid, int __cmd, struct shmid_ds *__buf) __THROW;

/* Get shared memory segment. */
extern int shmget (key_t __key, size_t __size, int __shmflg) __THROW;

/* Attach shared memory segment. */
extern void *shmat (int __shmid, __const void *__shmaddr, int __shmflg)
__THROW;

/* Detach shared memory segment. */
extern int shmdt (__const void *__shmaddr) __THROW;

__END_DECLS

#endif /* sys/shm.h */