1
2/*
3 * Copyright (c) 1999-2003 Apple Computer, Inc. All rights reserved.
4 *
5 * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
6 *
7 * This file contains Original Code and/or Modifications of Original Code
8 * as defined in and that are subject to the Apple Public Source License
9 * Version 2.0 (the 'License'). You may not use this file except in
10 * compliance with the License. The rights granted to you under the License
11 * may not be used to create, or enable the creation or redistribution of,
12 * unlawful or unlicensed copies of an Apple operating system, or to
13 * circumvent, violate, or enable the circumvention or violation of, any
14 * terms of an Apple operating system software license agreement.
15 *
16 * Please obtain a copy of the License at
17 * http://www.opensource.apple.com/apsl/ and read it before using this file.
18 *
19 * The Original Code and all software distributed under the License are
20 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
21 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
22 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
23 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
24 * Please see the License for the specific language governing rights and
25 * limitations under the License.
26 *
27 * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
28 */
29/*
30 * Copyright (c) 1990, 1996-1998 Apple Computer, Inc.
31 * All Rights Reserved.
32 */
33/*
34 * posix_shm.c : Support for POSIX semaphore APIs
35 *
36 * File: posix_sem.c
37 * Author: Ananthakrishna Ramesh
38 *
39 * HISTORY
40 * 2-Sep-1999 A.Ramesh
41 * Created for MacOSX
42 *
43 */
44
45#ifndef _SYS_POSIX_SEM_H_
46#define _SYS_POSIX_SEM_H_
47
48#include <sys/appleapiopts.h>
49#include <sys/types.h>
50#include <sys/proc.h>
51
52struct label;
53
54#define PSEMNAMLEN 31 /* maximum name segment length we bother with */
55
56struct pseminfo {
57 unsigned int psem_flags;
58 unsigned int psem_usecount;
59 mode_t psem_mode;
60 uid_t psem_uid;
61 gid_t psem_gid;
62 char psem_name[PSEMNAMLEN + 1]; /* segment name */
63 void * psem_semobject;
64 struct label * psem_label;
65 pid_t psem_creator_pid;
66 uint64_t psem_creator_uniqueid;
67};
68
69#define PSEMINFO_NULL (struct pseminfo *)0
70
71#define PSEM_NONE 1
72#define PSEM_DEFINED 2
73#define PSEM_ALLOCATED 4
74#define PSEM_MAPPED 8
75#define PSEM_INUSE 0x10
76#define PSEM_REMOVED 0x20
77#define PSEM_INCREATE 0x40
78#define PSEM_INDELETE 0x80
79
80#endif
81