xref: /xnu-8792.81.2/bsd/sys/posix_shm.h (revision 19c3b8c28c31cb8130e034cfb5df6bf9ba342d90)
1*19c3b8c2SApple OSS Distributions /*
2*19c3b8c2SApple OSS Distributions  * Copyright (c) 1999-2003 Apple Computer, Inc. All rights reserved.
3*19c3b8c2SApple OSS Distributions  *
4*19c3b8c2SApple OSS Distributions  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
5*19c3b8c2SApple OSS Distributions  *
6*19c3b8c2SApple OSS Distributions  * This file contains Original Code and/or Modifications of Original Code
7*19c3b8c2SApple OSS Distributions  * as defined in and that are subject to the Apple Public Source License
8*19c3b8c2SApple OSS Distributions  * Version 2.0 (the 'License'). You may not use this file except in
9*19c3b8c2SApple OSS Distributions  * compliance with the License. The rights granted to you under the License
10*19c3b8c2SApple OSS Distributions  * may not be used to create, or enable the creation or redistribution of,
11*19c3b8c2SApple OSS Distributions  * unlawful or unlicensed copies of an Apple operating system, or to
12*19c3b8c2SApple OSS Distributions  * circumvent, violate, or enable the circumvention or violation of, any
13*19c3b8c2SApple OSS Distributions  * terms of an Apple operating system software license agreement.
14*19c3b8c2SApple OSS Distributions  *
15*19c3b8c2SApple OSS Distributions  * Please obtain a copy of the License at
16*19c3b8c2SApple OSS Distributions  * http://www.opensource.apple.com/apsl/ and read it before using this file.
17*19c3b8c2SApple OSS Distributions  *
18*19c3b8c2SApple OSS Distributions  * The Original Code and all software distributed under the License are
19*19c3b8c2SApple OSS Distributions  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
20*19c3b8c2SApple OSS Distributions  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
21*19c3b8c2SApple OSS Distributions  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
22*19c3b8c2SApple OSS Distributions  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
23*19c3b8c2SApple OSS Distributions  * Please see the License for the specific language governing rights and
24*19c3b8c2SApple OSS Distributions  * limitations under the License.
25*19c3b8c2SApple OSS Distributions  *
26*19c3b8c2SApple OSS Distributions  * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
27*19c3b8c2SApple OSS Distributions  */
28*19c3b8c2SApple OSS Distributions /*
29*19c3b8c2SApple OSS Distributions  *	Copyright (c) 1990, 1996-1998 Apple Computer, Inc.
30*19c3b8c2SApple OSS Distributions  *	All Rights Reserved.
31*19c3b8c2SApple OSS Distributions  */
32*19c3b8c2SApple OSS Distributions /*
33*19c3b8c2SApple OSS Distributions  * posix_shm.c : Support for POSIX shared memory APIs
34*19c3b8c2SApple OSS Distributions  *
35*19c3b8c2SApple OSS Distributions  *	File:	posix_shm.c
36*19c3b8c2SApple OSS Distributions  *	Author:	Ananthakrishna Ramesh
37*19c3b8c2SApple OSS Distributions  *
38*19c3b8c2SApple OSS Distributions  * HISTORY
39*19c3b8c2SApple OSS Distributions  * 2-Sep-1999	A.Ramesh
40*19c3b8c2SApple OSS Distributions  *	Created for MacOSX
41*19c3b8c2SApple OSS Distributions  *
42*19c3b8c2SApple OSS Distributions  */
43*19c3b8c2SApple OSS Distributions 
44*19c3b8c2SApple OSS Distributions #ifndef _SYS_POSIX_SHM_H_
45*19c3b8c2SApple OSS Distributions #define _SYS_POSIX_SHM_H_
46*19c3b8c2SApple OSS Distributions 
47*19c3b8c2SApple OSS Distributions #include <sys/appleapiopts.h>
48*19c3b8c2SApple OSS Distributions #include <sys/types.h>
49*19c3b8c2SApple OSS Distributions #include <sys/proc.h>
50*19c3b8c2SApple OSS Distributions 
51*19c3b8c2SApple OSS Distributions struct label;
52*19c3b8c2SApple OSS Distributions 
53*19c3b8c2SApple OSS Distributions #define PSHMNAMLEN      31      /* maximum name segment length we bother with */
54*19c3b8c2SApple OSS Distributions 
55*19c3b8c2SApple OSS Distributions struct pshminfo {
56*19c3b8c2SApple OSS Distributions 	unsigned int pshm_flags;
57*19c3b8c2SApple OSS Distributions 	unsigned int pshm_usecount;
58*19c3b8c2SApple OSS Distributions 	off_t        pshm_length;
59*19c3b8c2SApple OSS Distributions 	mode_t       pshm_mode;
60*19c3b8c2SApple OSS Distributions 	uid_t        pshm_uid;
61*19c3b8c2SApple OSS Distributions 	gid_t        pshm_gid;
62*19c3b8c2SApple OSS Distributions 	char         pshm_name[PSHMNAMLEN + 1];
63*19c3b8c2SApple OSS Distributions 	void         *pshm_memobject;
64*19c3b8c2SApple OSS Distributions 	struct label *pshm_label;
65*19c3b8c2SApple OSS Distributions };
66*19c3b8c2SApple OSS Distributions 
67*19c3b8c2SApple OSS Distributions #endif
68