osfmk/kern/mach_param.h

   1 /*
   2  * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * The contents of this file constitute Original Code as defined in and
   7  * are subject to the Apple Public Source License Version 1.1 (the
   8  * "License").  You may not use this file except in compliance with the
   9  * License.  Please obtain a copy of the License at
  10  * http://www.apple.com/publicsource and read it before using this file.
  11  *
  12  * This Original Code and all software distributed under the License are
  13  * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  14  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  15  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  16  * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
  17  * License for the specific language governing rights and limitations
  18  * under the License.
  19  *
  20  * @APPLE_LICENSE_HEADER_END@
  21  */
  22 /*
  23  * @OSF_COPYRIGHT@
  24  */
  25 /*
  26  * Mach Operating System
  27  * Copyright (c) 1991,1990,1989,1988,1987 Carnegie Mellon University
  28  * All Rights Reserved.
  29  *
  30  * Permission to use, copy, modify and distribute this software and its
  31  * documentation is hereby granted, provided that both the copyright
  32  * notice and this permission notice appear in all copies of the
  33  * software, derivative works or modified versions, and any portions
  34  * thereof, and that both notices appear in supporting documentation.
  35  *
  36  * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
  37  * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
  38  * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
  39  *
  40  * Carnegie Mellon requests users of this software to return to
  41  *
  42  *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
  43  *  School of Computer Science
  44  *  Carnegie Mellon University
  45  *  Pittsburgh PA 15213-3890
  46  *
  47  * any improvements or extensions that they make and grant Carnegie Mellon
  48  * the rights to redistribute these changes.
  49  */
  50 /*
  51  */
  52 /*
  53  *      File:   kern/mach_param.h
  54  *      Author: Avadis Tevanian, Jr., Michael Wayne Young
  55  *      Date:   1986
  56  *
  57  *      Mach system sizing parameters
  58  *
  59  */
  60
  61 #ifdef  XNU_KERNEL_PRIVATE
  62
  63 #ifndef _KERN_MACH_PARAM_H_
  64 #define _KERN_MACH_PARAM_H_
  65
  66 #define THREAD_MAX              2560    /* Max number of threads */
  67 #define THREAD_CHUNK    64              /* Allocation chunk */
  68
  69 #define TASK_MAX        1024            /* Max number of tasks */
  70 #define TASK_CHUNK      64                      /* Allocation chunk */
  71
  72 #define PORT_MAX        ((TASK_MAX * 3 + THREAD_MAX)    /* kernel */ \
  73                                 + (THREAD_MAX * 2)      /* user */ \
  74                                 + 40000)                /* slop for objects */
  75                                         /* Number of ports, system-wide */
  76
  77 #define SET_MAX         (TASK_MAX + THREAD_MAX + 200)
  78                                         /* Max number of port sets */
  79
  80 #define ITE_MAX         (1 << 16)       /* Max number of splay tree entries */
  81
  82 #define SPACE_MAX       (TASK_MAX + 5)  /* Max number of IPC spaces */
  83
  84 #define SEMAPHORE_MAX   (PORT_MAX >> 1) /* Maximum number of semaphores */
  85
  86 #endif  /* _KERN_MACH_PARAM_H_ */
  87
  88 #endif  /* XNU_KERNEL_PRIVATE */