darling-xnu/osfmk/kern/mach_param.h
2023-05-16 21:41:14 -07:00

93 lines
3.3 KiB
C

/*
* Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
*
* @APPLE_OSREFERENCE_LICENSE_HEADER_START@
*
* This file contains Original Code and/or Modifications of Original Code
* as defined in and that are subject to the Apple Public Source License
* Version 2.0 (the 'License'). You may not use this file except in
* compliance with the License. The rights granted to you under the License
* may not be used to create, or enable the creation or redistribution of,
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* circumvent, violate, or enable the circumvention or violation of, any
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*
* Please obtain a copy of the License at
* http://www.opensource.apple.com/apsl/ and read it before using this file.
*
* The Original Code and all software distributed under the License are
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* Please see the License for the specific language governing rights and
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* @APPLE_OSREFERENCE_LICENSE_HEADER_END@
*/
/*
* @OSF_COPYRIGHT@
*/
/*
* Mach Operating System
* Copyright (c) 1991,1990,1989,1988,1987 Carnegie Mellon University
* All Rights Reserved.
*
* Permission to use, copy, modify and distribute this software and its
* documentation is hereby granted, provided that both the copyright
* notice and this permission notice appear in all copies of the
* software, derivative works or modified versions, and any portions
* thereof, and that both notices appear in supporting documentation.
*
* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
* ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
*
* Carnegie Mellon requests users of this software to return to
*
* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
* School of Computer Science
* Carnegie Mellon University
* Pittsburgh PA 15213-3890
*
* any improvements or extensions that they make and grant Carnegie Mellon
* the rights to redistribute these changes.
*/
/*
*/
/*
* File: kern/mach_param.h
* Author: Avadis Tevanian, Jr., Michael Wayne Young
* Date: 1986
*
* Mach system sizing parameters
*
*/
#ifdef XNU_KERNEL_PRIVATE
#ifndef _KERN_MACH_PARAM_H_
#define _KERN_MACH_PARAM_H_
extern int thread_max, task_threadmax, task_max;
#define THREAD_CHUNK 64 /* Allocation chunk */
#define TASK_CHUNK 64 /* Allocation chunk */
#define PORT_MAX ((task_max * 3 + thread_max) /* kernel */ \
+ (thread_max * 2) /* user */ \
+ 40000) /* slop for objects */
/* Number of ports, system-wide */
#define SET_MAX (task_max + (thread_max * 2) + 200)
/* Max number of port sets */
#define SPACE_MAX (task_max + 5) /* Max number of IPC spaces */
#define SEMAPHORE_MAX (PORT_MAX >> 1) /* Maximum number of semaphores */
#endif /* _KERN_MACH_PARAM_H_ */
#endif /* XNU_KERNEL_PRIVATE */