1/*
2 * Copyright (c) 2000-2004 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 * @OSF_COPYRIGHT@
30 */
31/*
32 * Mach Operating System
33 * Copyright (c) 1991,1990,1989 Carnegie Mellon University
34 * All Rights Reserved.
35 *
36 * Permission to use, copy, modify and distribute this software and its
37 * documentation is hereby granted, provided that both the copyright
38 * notice and this permission notice appear in all copies of the
39 * software, derivative works or modified versions, and any portions
40 * thereof, and that both notices appear in supporting documentation.
41 *
42 * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
43 * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
44 * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
45 *
46 * Carnegie Mellon requests users of this software to return to
47 *
48 *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
49 *  School of Computer Science
50 *  Carnegie Mellon University
51 *  Pittsburgh PA 15213-3890
52 *
53 * any improvements or extensions that they make and grant Carnegie Mellon
54 * the rights to redistribute these changes.
55 */
56/*
57 */
58/*
59 *	File:	ipc/ipc_hash.h
60 *	Author:	Rich Draves
61 *	Date:	1989
62 *
63 *	Declarations of entry hash table operations.
64 */
65
66#ifndef	_IPC_IPC_HASH_H_
67#define _IPC_IPC_HASH_H_
68
69#include <mach/port.h>
70#include <mach/mach_types.h>
71#include <mach/boolean.h>
72#include <mach/kern_return.h>
73#include <ipc/ipc_types.h>
74/*
75 * Exported interfaces
76 */
77
78/* Lookup (space, obj) in the appropriate reverse hash table */
79extern boolean_t ipc_hash_lookup(
80	ipc_space_t		space,
81	ipc_object_t		obj,
82	mach_port_name_t	*namep,
83	ipc_entry_t		*entryp);
84
85/* Insert an entry into the appropriate reverse hash table */
86extern void ipc_hash_insert(
87	ipc_space_t		space,
88	ipc_object_t		obj,
89	mach_port_name_t	name,
90	ipc_entry_t		entry);
91
92/* Delete an entry from the appropriate reverse hash table */
93extern void ipc_hash_delete(
94	ipc_space_t		space,
95	ipc_object_t		obj,
96	mach_port_name_t	name,
97	ipc_entry_t		entry);
98
99/*
100 *	For use by functions that know what they're doing:
101 *	local primitives are for table entries.
102 */
103
104/* Lookup (space, obj) in local hash table */
105extern boolean_t ipc_hash_table_lookup(
106	ipc_entry_t		table,
107	ipc_entry_num_t		size,
108	ipc_object_t		obj,
109	mach_port_name_t	*namep,
110	ipc_entry_t		*entryp);
111
112/* Inserts an entry into the local reverse hash table */
113extern void ipc_hash_table_insert(
114	ipc_entry_t		table,
115	ipc_entry_num_t		size,
116	ipc_object_t		obj,
117	mach_port_index_t	index,
118	ipc_entry_t		entry);
119
120/* Delete an entry from the appropriate reverse hash table */
121extern void ipc_hash_table_delete(
122	ipc_entry_t		table,
123	ipc_entry_num_t		size,
124	ipc_object_t		obj,
125	mach_port_name_t	name,
126	ipc_entry_t		entry);
127
128#include <mach_ipc_debug.h>
129
130#if	MACH_IPC_DEBUG
131
132#include <mach_debug/hash_info.h>
133
134extern natural_t ipc_hash_info(
135	hash_info_bucket_t	*info,
136	natural_t count);
137
138#endif	/* MACH_IPC_DEBUG */
139
140#endif	/* _IPC_IPC_HASH_H_ */
141