1/* Copyright (C) 1995-2025 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#ifndef _SYS_IPC_H
19# error "Never use <bits/ipc.h> directly; include <sys/ipc.h> instead."
20#endif
21
22#include <bits/types.h>
23
24/* Mode bits for `msgget', `semget', and `shmget'.  */
25#define IPC_CREAT	01000		/* Create key if key does not exist. */
26#define IPC_EXCL	02000		/* Fail if key exists.  */
27#define IPC_NOWAIT	04000		/* Return error on wait.  */
28
29/* Control commands for `msgctl', `semctl', and `shmctl'.  */
30#define IPC_RMID	0		/* Remove identifier.  */
31#define IPC_SET		1		/* Set `ipc_perm' options.  */
32#define IPC_STAT	2		/* Get `ipc_perm' options.  */
33#ifdef __USE_GNU
34# define IPC_INFO	3		/* See ipcs.  */
35#endif
36
37/* Special key values.  */
38#define IPC_PRIVATE	((__key_t) 0)	/* Private key.  */
39
40#include <bits/ipc-perm.h>