mirror of
https://sourceware.org/git/glibc.git
synced 2024-12-11 13:50:06 +00:00
85 lines
2.6 KiB
C
85 lines
2.6 KiB
C
|
/* Copyright (C) 1995 Free Software Foundation, Inc.
|
||
|
|
This file is part of the GNU C Library.
|
||
|
|
Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, August 1995.
|
||
|
|
|
||
|
|
The GNU C Library is free software; you can redistribute it and/or
|
||
|
|
modify it under the terms of the GNU Library General Public License as
|
||
|
|
published by the Free Software Foundation; either version 2 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
|
||
|
|
Library General Public License for more details.
|
||
|
|
|
||
|
|
You should have received a copy of the GNU Library General Public
|
||
|
|
License along with the GNU C Library; see the file COPYING.LIB. If
|
||
|
|
not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
|
||
|
|
Boston, MA 02111-1307, USA. */
|
||
|
|
|
||
|
|
#ifndef _SYS_IPC_BUF_H
|
||
|
|
#define _SYS_IPC_BUF_H
|
||
|
|
|
||
|
|
#include <features.h>
|
||
|
|
#include <sys/types.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 */
|
||
|
|
#define IPC_INFO 3 /* see ipcs */
|
||
|
|
|
||
|
|
|
||
|
|
__BEGIN_DECLS
|
||
|
|
|
||
|
|
/* 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 */
|
||
|
|
__mode_t mode; /* read/write permission */
|
||
|
|
unsigned short int __seq; /* sequence number */
|
||
|
|
};
|
||
|
|
|
||
|
|
|
||
|
|
/* Kludge to work around Linux' restriction of only up to five
|
||
|
|
arguments to a system call. */
|
||
|
|
struct ipc_kludge
|
||
|
|
{
|
||
|
|
void *msgp;
|
||
|
|
long msgtyp;
|
||
|
|
};
|
||
|
|
|
||
|
|
/* The actual system call: all functions are multiplexed by this. */
|
||
|
|
extern int __ipc __P ((int __call, int __first, int __second, int __third,
|
||
|
|
void *__ptr));
|
||
|
|
|
||
|
|
/* The codes for the functions to use the multiplexer `__ipc'. */
|
||
|
|
#define IPCOP_semop 1
|
||
|
|
#define IPCOP_semget 2
|
||
|
|
#define IPCOP_semctl 3
|
||
|
|
#define IPCOP_msgsnd 11
|
||
|
|
#define IPCOP_msgrcv 12
|
||
|
|
#define IPCOP_msgget 13
|
||
|
|
#define IPCOP_msgctl 14
|
||
|
|
#define IPCOP_shmat 21
|
||
|
|
#define IPCOP_shmdt 22
|
||
|
|
#define IPCOP_shmget 23
|
||
|
|
#define IPCOP_shmctl 24
|
||
|
|
|
||
|
|
__END_DECLS
|
||
|
|
|
||
|
|
#endif /* sys/ipc_buf.h */
|