bsd/sys/vm.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 /* Copyright (c) 1995 NeXT Computer, Inc. All Rights Reserved */
  23 /*
  24  * Copyright (c) 1991, 1993
  25  *      The Regents of the University of California.  All rights reserved.
  26  *
  27  * Redistribution and use in source and binary forms, with or without
  28  * modification, are permitted provided that the following conditions
  29  * are met:
  30  * 1. Redistributions of source code must retain the above copyright
  31  *    notice, this list of conditions and the following disclaimer.
  32  * 2. Redistributions in binary form must reproduce the above copyright
  33  *    notice, this list of conditions and the following disclaimer in the
  34  *    documentation and/or other materials provided with the distribution.
  35  * 3. All advertising materials mentioning features or use of this software
  36  *    must display the following acknowledgement:
  37  *      This product includes software developed by the University of
  38  *      California, Berkeley and its contributors.
  39  * 4. Neither the name of the University nor the names of its contributors
  40  *    may be used to endorse or promote products derived from this software
  41  *    without specific prior written permission.
  42  *
  43  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  44  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  45  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  46  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  47  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  48  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  49  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  50  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  51  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  52  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  53  * SUCH DAMAGE.
  54  *
  55  *      @(#)vm.h        8.5 (Berkeley) 5/11/95
  56  */
  57 /* HISTORY
  58  *  05-Jun-95  Mac Gillon (mgillon) at NeXT
  59  *      4.4 code uses this file to import MACH API
  60  */
  61
  62 #ifndef _SYS_VM_H
  63 #define _SYS_VM_H
  64
  65 /* Machine specific config stuff */
  66 #if     defined(KERNEL) && !defined(MACH_USER_API)
  67 #include <sys/vmmeter.h>
  68 #include <sys/queue.h>
  69 #include <mach/vm_param.h>
  70 #endif
  71
  72 /*
  73  * Shareable process virtual address space.
  74  * May eventually be merged with vm_map.
  75  * Several fields are temporary (text, data stuff).
  76  */
  77 struct vmspace {
  78         int     vm_refcnt;      /* number of references */
  79         caddr_t vm_shm;         /* SYS5 shared memory private data XXX */
  80 /* we copy from vm_startcopy to the end of the structure on fork */
  81 #define vm_startcopy vm_rssize
  82         segsz_t vm_rssize;      /* current resident set size in pages */
  83         segsz_t vm_swrss;       /* resident set size before last swap */
  84         segsz_t vm_tsize;       /* text size (pages) XXX */
  85         segsz_t vm_dsize;       /* data size (pages) XXX */
  86         segsz_t vm_ssize;       /* stack size (pages) */
  87         caddr_t vm_taddr;       /* user virtual address of text XXX */
  88         caddr_t vm_daddr;       /* user virtual address of data XXX */
  89         caddr_t vm_maxsaddr;    /* user VA at max stack growth */
  90 };
  91
  92 #ifdef KERNEL
  93
  94 #ifdef BSD_BUILD
  95 #include <kern/thread.h>
  96 #endif /* BSD_BUILD */
  97
  98 struct proc *current_proc(void);
  99
 100 #endif /* KERNEL */
 101
 102 #endif /* _SYS_VM_H */