1/*
2 * Copyright (c) 2000 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) 1991,1990,1989,1988,1987 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: kern/mach_param.h
60 * Author: Avadis Tevanian, Jr., Michael Wayne Young
61 * Date: 1986
62 *
63 * Mach system sizing parameters
64 *
65 */
66
67#ifdef XNU_KERNEL_PRIVATE
68
69#ifndef _KERN_MACH_PARAM_H_
70#define _KERN_MACH_PARAM_H_
71
72extern int thread_max, task_threadmax, task_max;
73
74
75#define THREAD_CHUNK 64 /* Allocation chunk */
76#define TASK_CHUNK 64 /* Allocation chunk */
77
78#define PORT_MAX ((task_max * 3 + thread_max) /* kernel */ \
79 + (thread_max * 2) /* user */ \
80 + 40000) /* slop for objects */
81 /* Number of ports, system-wide */
82
83#define SET_MAX (task_max + (thread_max * 2) + 200)
84 /* Max number of port sets */
85
86#define SPACE_MAX (task_max + 5) /* Max number of IPC spaces */
87
88#define SEMAPHORE_MAX (PORT_MAX >> 1) /* Maximum number of semaphores */
89
90#endif /* _KERN_MACH_PARAM_H_ */
91
92#endif /* XNU_KERNEL_PRIVATE */
93