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