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 [email protected] 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 */ 93