mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-14 09:01:07 +00:00
62 lines
2.2 KiB
C
62 lines
2.2 KiB
C
/* Copyright (C) 1995-2014 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/>. */
|
|
|
|
#ifndef _SYS_IPC_H
|
|
# error "Never use <bits/ipc.h> directly; include <sys/ipc.h> instead."
|
|
#endif
|
|
|
|
#include <bits/types.h>
|
|
#include <bits/wordsize.h>
|
|
|
|
/* Mode bits for `msgget', `semget', and `shmget'. */
|
|
#define IPC_CREAT 01000 /* Create key if key does not exist. */
|
|
#define IPC_EXCL 02000 /* Fail if key exists. */
|
|
#define IPC_NOWAIT 04000 /* Return error on wait. */
|
|
|
|
/* Control commands for `msgctl', `semctl', and `shmctl'. */
|
|
#define IPC_RMID 0 /* Remove identifier. */
|
|
#define IPC_SET 1 /* Set `ipc_perm' options. */
|
|
#define IPC_STAT 2 /* Get `ipc_perm' options. */
|
|
#ifdef __USE_GNU
|
|
# define IPC_INFO 3 /* See ipcs. */
|
|
#endif
|
|
|
|
/* Special key values. */
|
|
#define IPC_PRIVATE ((__key_t) 0) /* Private key. */
|
|
|
|
|
|
/* Data structure used to pass permission information to IPC operations. */
|
|
struct ipc_perm
|
|
{
|
|
__key_t __key; /* Key. */
|
|
__uid_t uid; /* Owner's user ID. */
|
|
__gid_t gid; /* Owner's group ID. */
|
|
__uid_t cuid; /* Creator's user ID. */
|
|
__gid_t cgid; /* Creator's group ID. */
|
|
#if __WORDSIZE == 32
|
|
unsigned short int __pad1;
|
|
unsigned short int mode; /* Read/write permission. */
|
|
unsigned short int __pad2;
|
|
#else
|
|
__mode_t mode; /* Read/write permission. */
|
|
unsigned short int __pad1;
|
|
#endif
|
|
unsigned short int __seq; /* Sequence number. */
|
|
__extension__ unsigned long long int __glibc_reserved1;
|
|
__extension__ unsigned long long int __glibc_reserved2;
|
|
};
|