osfmk/kern/mach_param.h

   1 /*
   2  * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_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. Please obtain a copy of the License at
  10  * http://www.opensource.apple.com/apsl/ and read it before using this
  11  * file.
  12  *
  13  * The Original Code and all software distributed under the License are
  14  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  15  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  16  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  18  * Please see the License for the specific language governing rights and
  19  * limitations under the License.
  20  *
  21  * @APPLE_LICENSE_HEADER_END@
  22  */
  23 /*
  24  * @OSF_COPYRIGHT@
  25  */
  26 /*
  27  * Mach Operating System
  28  * Copyright (c) 1991,1990,1989,1988,1987 Carnegie Mellon University
  29  * All Rights Reserved.
  30  *
  31  * Permission to use, copy, modify and distribute this software and its
  32  * documentation is hereby granted, provided that both the copyright
  33  * notice and this permission notice appear in all copies of the
  34  * software, derivative works or modified versions, and any portions
  35  * thereof, and that both notices appear in supporting documentation.
  36  *
  37  * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
  38  * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
  39  * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
  40  *
  41  * Carnegie Mellon requests users of this software to return to
  42  *
  43  *  Software Distribution Coordinator  or  Software.Distribution@CS.CMU.EDU
  44  *  School of Computer Science
  45  *  Carnegie Mellon University
  46  *  Pittsburgh PA 15213-3890
  47  *
  48  * any improvements or extensions that they make and grant Carnegie Mellon
  49  * the rights to redistribute these changes.
  50  */
  51 /*
  52  */
  53 /*
  54  *      File:   kern/mach_param.h
  55  *      Author: Avadis Tevanian, Jr., Michael Wayne Young
  56  *      Date:   1986
  57  *
  58  *      Mach system sizing parameters
  59  *
  60  */
  61
  62 #ifdef  XNU_KERNEL_PRIVATE
  63
  64 #ifndef _KERN_MACH_PARAM_H_
  65 #define _KERN_MACH_PARAM_H_
  66
  67 #define THREAD_MAX              2560    /* Max number of threads */
  68 #define THREAD_CHUNK    64              /* Allocation chunk */
  69
  70 #define TASK_MAX        1024            /* Max number of tasks */
  71 #define TASK_CHUNK      64                      /* Allocation chunk */
  72
  73 #define PORT_MAX        ((TASK_MAX * 3 + THREAD_MAX)    /* kernel */ \
  74                                 + (THREAD_MAX * 2)      /* user */ \
  75                                 + 40000)                /* slop for objects */
  76                                         /* Number of ports, system-wide */
  77
  78 #define SET_MAX         (TASK_MAX + THREAD_MAX + 200)
  79                                         /* Max number of port sets */
  80
  81 #define ITE_MAX         (1 << 16)       /* Max number of splay tree entries */
  82
  83 #define SPACE_MAX       (TASK_MAX + 5)  /* Max number of IPC spaces */
  84
  85 #define SEMAPHORE_MAX   (PORT_MAX >> 1) /* Maximum number of semaphores */
  86
  87 #endif  /* _KERN_MACH_PARAM_H_ */
  88
  89 #endif  /* XNU_KERNEL_PRIVATE */