1 /* Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
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.
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.
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 <http://www.gnu.org/licenses/>. */
19 # error "Never use <bits/ipc.h> directly; include <sys/ipc.h> instead."
22 #include <bits/types.h>
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. */
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. */
34 # define IPC_INFO 3 /* See ipcs. */
37 /* Special key values. */
38 #define IPC_PRIVATE ((__key_t) 0) /* Private key. */
41 /* Data structure used to pass permission information to IPC operations. */
44 __key_t __key
; /* Key. */
45 unsigned int uid
; /* Owner's user ID. */
46 unsigned int gid
; /* Owner's group ID. */
47 unsigned int cuid
; /* Creator's user ID. */
48 unsigned int cgid
; /* Creator's group ID. */
49 unsigned int mode
; /* Read/write permission. */
50 unsigned short int __seq
; /* Sequence number. */
51 unsigned short int __pad1
;
52 unsigned long int __uclibc_unused1
;
53 unsigned long int __uclibc_unused2
;