xref: /xnu-8792.61.2/bsd/sys/posix_shm.h (revision 42e220869062b56f8d7d0726fd4c88954f87902c)
1*42e22086SApple OSS Distributions /*
2*42e22086SApple OSS Distributions  * Copyright (c) 1999-2003 Apple Computer, Inc. All rights reserved.
3*42e22086SApple OSS Distributions  *
4*42e22086SApple OSS Distributions  * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
5*42e22086SApple OSS Distributions  *
6*42e22086SApple OSS Distributions  * This file contains Original Code and/or Modifications of Original Code
7*42e22086SApple OSS Distributions  * as defined in and that are subject to the Apple Public Source License
8*42e22086SApple OSS Distributions  * Version 2.0 (the 'License'). You may not use this file except in
9*42e22086SApple OSS Distributions  * compliance with the License. The rights granted to you under the License
10*42e22086SApple OSS Distributions  * may not be used to create, or enable the creation or redistribution of,
11*42e22086SApple OSS Distributions  * unlawful or unlicensed copies of an Apple operating system, or to
12*42e22086SApple OSS Distributions  * circumvent, violate, or enable the circumvention or violation of, any
13*42e22086SApple OSS Distributions  * terms of an Apple operating system software license agreement.
14*42e22086SApple OSS Distributions  *
15*42e22086SApple OSS Distributions  * Please obtain a copy of the License at
16*42e22086SApple OSS Distributions  * http://www.opensource.apple.com/apsl/ and read it before using this file.
17*42e22086SApple OSS Distributions  *
18*42e22086SApple OSS Distributions  * The Original Code and all software distributed under the License are
19*42e22086SApple OSS Distributions  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
20*42e22086SApple OSS Distributions  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
21*42e22086SApple OSS Distributions  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
22*42e22086SApple OSS Distributions  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
23*42e22086SApple OSS Distributions  * Please see the License for the specific language governing rights and
24*42e22086SApple OSS Distributions  * limitations under the License.
25*42e22086SApple OSS Distributions  *
26*42e22086SApple OSS Distributions  * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
27*42e22086SApple OSS Distributions  */
28*42e22086SApple OSS Distributions /*
29*42e22086SApple OSS Distributions  *	Copyright (c) 1990, 1996-1998 Apple Computer, Inc.
30*42e22086SApple OSS Distributions  *	All Rights Reserved.
31*42e22086SApple OSS Distributions  */
32*42e22086SApple OSS Distributions /*
33*42e22086SApple OSS Distributions  * posix_shm.c : Support for POSIX shared memory APIs
34*42e22086SApple OSS Distributions  *
35*42e22086SApple OSS Distributions  *	File:	posix_shm.c
36*42e22086SApple OSS Distributions  *	Author:	Ananthakrishna Ramesh
37*42e22086SApple OSS Distributions  *
38*42e22086SApple OSS Distributions  * HISTORY
39*42e22086SApple OSS Distributions  * 2-Sep-1999	A.Ramesh
40*42e22086SApple OSS Distributions  *	Created for MacOSX
41*42e22086SApple OSS Distributions  *
42*42e22086SApple OSS Distributions  */
43*42e22086SApple OSS Distributions 
44*42e22086SApple OSS Distributions #ifndef _SYS_POSIX_SHM_H_
45*42e22086SApple OSS Distributions #define _SYS_POSIX_SHM_H_
46*42e22086SApple OSS Distributions 
47*42e22086SApple OSS Distributions #include <sys/appleapiopts.h>
48*42e22086SApple OSS Distributions #include <sys/types.h>
49*42e22086SApple OSS Distributions #include <sys/proc.h>
50*42e22086SApple OSS Distributions 
51*42e22086SApple OSS Distributions struct label;
52*42e22086SApple OSS Distributions 
53*42e22086SApple OSS Distributions #define PSHMNAMLEN      31      /* maximum name segment length we bother with */
54*42e22086SApple OSS Distributions 
55*42e22086SApple OSS Distributions struct pshminfo {
56*42e22086SApple OSS Distributions 	unsigned int pshm_flags;
57*42e22086SApple OSS Distributions 	unsigned int pshm_usecount;
58*42e22086SApple OSS Distributions 	off_t        pshm_length;
59*42e22086SApple OSS Distributions 	mode_t       pshm_mode;
60*42e22086SApple OSS Distributions 	uid_t        pshm_uid;
61*42e22086SApple OSS Distributions 	gid_t        pshm_gid;
62*42e22086SApple OSS Distributions 	char         pshm_name[PSHMNAMLEN + 1];
63*42e22086SApple OSS Distributions 	void         *pshm_memobject;
64*42e22086SApple OSS Distributions 	struct label *pshm_label;
65*42e22086SApple OSS Distributions };
66*42e22086SApple OSS Distributions 
67*42e22086SApple OSS Distributions #endif
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