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Annotation of Net2/vm/vm.h, revision 1.1.1.2

1.1       root        1: /*
                      2:  * Copyright (c) 1991 Regents of the University of California.
                      3:  * All rights reserved.
                      4:  *
                      5:  * Redistribution and use in source and binary forms, with or without
                      6:  * modification, are permitted provided that the following conditions
                      7:  * are met:
                      8:  * 1. Redistributions of source code must retain the above copyright
                      9:  *    notice, this list of conditions and the following disclaimer.
                     10:  * 2. Redistributions in binary form must reproduce the above copyright
                     11:  *    notice, this list of conditions and the following disclaimer in the
                     12:  *    documentation and/or other materials provided with the distribution.
                     13:  * 3. All advertising materials mentioning features or use of this software
                     14:  *    must display the following acknowledgement:
                     15:  *     This product includes software developed by the University of
                     16:  *     California, Berkeley and its contributors.
                     17:  * 4. Neither the name of the University nor the names of its contributors
                     18:  *    may be used to endorse or promote products derived from this software
                     19:  *    without specific prior written permission.
                     20:  *
                     21:  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
                     22:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
                     23:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
                     24:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
                     25:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
                     26:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
                     27:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
                     28:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
                     29:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
                     30:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
                     31:  * SUCH DAMAGE.
                     32:  *
1.1.1.2 ! root       33:  *     from: @(#)vm.h  7.1 (Berkeley) 5/5/91
        !            34:  *     vm.h,v 1.5 1993/07/15 14:25:18 cgd Exp
1.1       root       35:  */
                     36: 
1.1.1.2 ! root       37: #ifndef _VM_VM_H_
        !            38: #define _VM_VM_H_
        !            39: 
1.1       root       40: #include <vm/vm_param.h>
                     41: #include <vm/lock.h>
                     42: #include <vm/queue.h>
                     43: #include <vm/vm_prot.h>
                     44: #include <vm/vm_inherit.h>
                     45: #include <vm/vm_map.h>
                     46: #include <vm/vm_object.h>
                     47: #include <vm/vm_statistics.h>
                     48: #include <vm/pmap.h>
                     49: 
                     50: /*
                     51:  * Shareable process virtual address space.
                     52:  * May eventually be merged with vm_map.
                     53:  * Several fields are temporary (text, data stuff).
                     54:  */
                     55: struct vmspace {
                     56:        struct  vm_map vm_map;  /* VM address map */
                     57:        struct  pmap vm_pmap;   /* private physical map */
                     58:        int     vm_refcnt;      /* number of references */
                     59:        caddr_t vm_shm;         /* SYS5 shared memory private data XXX */
                     60: /* we copy from vm_startcopy to the end of the structure on fork */
                     61: #define vm_startcopy vm_rssize
                     62:        segsz_t vm_rssize;      /* current resident set size in pages */
                     63:        segsz_t vm_swrss;       /* resident set size before last swap */
                     64:        segsz_t vm_tsize;       /* text size (pages) XXX */
                     65:        segsz_t vm_dsize;       /* data size (pages) XXX */
                     66:        segsz_t vm_ssize;       /* stack size (pages) */
                     67:        caddr_t vm_taddr;       /* user virtual address of text XXX */
                     68:        caddr_t vm_daddr;       /* user virtual address of data XXX */
                     69:        caddr_t vm_maxsaddr;    /* user VA at max stack growth */
                     70: };
                     71: 
                     72: struct vmspace *vmspace_alloc __P((vm_offset_t min, vm_offset_t max,
                     73:                        int pageable));
                     74: struct vmspace *vmspace_fork __P((struct vmspace *));
                     75: void   vmspace_free __P((struct vmspace *));
1.1.1.2 ! root       76: 
        !            77: int    vm_fault __P((vm_map_t, vm_offset_t, vm_prot_t, boolean_t));
        !            78: void   vm_fault_wire __P((vm_map_t, vm_offset_t, vm_offset_t));
        !            79: void   vm_fault_unwire __P((vm_map_t, vm_offset_t, vm_offset_t));
        !            80: void   vm_fault_copy_entry __P((vm_map_t, vm_map_t, vm_map_entry_t, vm_map_entry_t));
        !            81: 
        !            82: #endif /* !_VM_VM_H_ */

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