osfmk/mach/vm_inherit.h

   1 /*
   2  * Copyright (c) 2000-2002 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
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   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
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  15  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
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  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:   mach/vm_inherit.h
  54  *      Author: Avadis Tevanian, Jr., Michael Wayne Young
  55  *
  56  *      Virtual memory map inheritance definitions.
  57  *
  58  */
  59
  60 #ifndef _MACH_VM_INHERIT_H_
  61 #define _MACH_VM_INHERIT_H_
  62
  63 /*
  64  *      Types defined:
  65  *
  66  *      vm_inherit_t    inheritance codes.
  67  */
  68
  69 typedef unsigned int            vm_inherit_t;   /* might want to change this */
  70
  71 /*
  72  *      Enumeration of valid values for vm_inherit_t.
  73  */
  74
  75 #define VM_INHERIT_SHARE        ((vm_inherit_t) 0)      /* share with child */
  76 #define VM_INHERIT_COPY         ((vm_inherit_t) 1)      /* copy into child */
  77 #define VM_INHERIT_NONE         ((vm_inherit_t) 2)      /* absent from child */
  78 #define VM_INHERIT_DONATE_COPY  ((vm_inherit_t) 3)      /* copy and delete */
  79
  80 #define VM_INHERIT_DEFAULT      VM_INHERIT_COPY
  81 #define VM_INHERIT_LAST_VALID VM_INHERIT_NONE
  82
  83 #endif  /* _MACH_VM_INHERIT_H_ */