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	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
	72	extern 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 */