1 /*	$OpenBSD: linux_shm.h,v 1.2 1996/04/17 05:23:58 mickey Exp $	*/
2 /*	$NetBSD: linux_shm.h,v 1.1 1995/02/28 23:25:57 fvdl Exp $	*/
3 
4 /*
5  * Copyright (c) 1995 Frank van der Linden
6  * All rights reserved.
7  *
8  * Redistribution and use in source and binary forms, with or without
9  * modification, are permitted provided that the following conditions
10  * are met:
11  * 1. Redistributions of source code must retain the above copyright
12  *    notice, this list of conditions and the following disclaimer.
13  * 2. Redistributions in binary form must reproduce the above copyright
14  *    notice, this list of conditions and the following disclaimer in the
15  *    documentation and/or other materials provided with the distribution.
16  * 3. All advertising materials mentioning features or use of this software
17  *    must display the following acknowledgement:
18  *      This product includes software developed for the NetBSD Project
19  *      by Frank van der Linden
20  * 4. The name of the author may not be used to endorse or promote products
21  *    derived from this software without specific prior written permission
22  *
23  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
24  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
25  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
26  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
27  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
28  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
29  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
30  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
31  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
32  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
33  */
34 
35 #ifndef _LINUX_SHM_H
36 #define _LINUX_SHM_H
37 
38 /*
39  * shm segment control structure
40  */
41 struct linux_shmid_ds {
42 	struct linux_ipc_perm	l_shm_perm;
43 	int			l_shm_segsz;
44 	linux_time_t		l_shm_atime;
45 	linux_time_t		l_shm_dtime;
46 	linux_time_t		l_shm_ctime;
47 	ushort			l_shm_cpid;
48 	ushort			l_shm_lpid;
49 	short			l_shm_nattch;
50 	ushort			l_private1;
51 	void			*l_private2;
52 	void			*l_private3;
53 };
54 
55 #define LINUX_SHM_RDONLY	0x1000
56 #define LINUX_SHM_RND		0x2000
57 #define LINUX_SHM_REMAP		0x4000
58 
59 #define LINUX_SHM_LOCK		11
60 #define LINUX_SHM_UNLOCK	12
61 #define LINUX_SHM_STAT		13
62 #define LINUX_SHM_INFO		14
63 
64 #endif /* _LINUX_SHM_H */
65