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Annotation of OSKit-Mach/vm/vm_fault.h, revision 1.1

1.1     ! root        1: /*
        !             2:  * Mach Operating System
        !             3:  * Copyright (c) 1991,1990,1989,1988,1987 Carnegie Mellon University
        !             4:  * All Rights Reserved.
        !             5:  *
        !             6:  * Permission to use, copy, modify and distribute this software and its
        !             7:  * documentation is hereby granted, provided that both the copyright
        !             8:  * notice and this permission notice appear in all copies of the
        !             9:  * software, derivative works or modified versions, and any portions
        !            10:  * thereof, and that both notices appear in supporting documentation.
        !            11:  *
        !            12:  * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
        !            13:  * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
        !            14:  * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
        !            15:  *
        !            16:  * Carnegie Mellon requests users of this software to return to
        !            17:  *
        !            18:  *  Software Distribution Coordinator  or  [email protected]
        !            19:  *  School of Computer Science
        !            20:  *  Carnegie Mellon University
        !            21:  *  Pittsburgh PA 15213-3890
        !            22:  *
        !            23:  * any improvements or extensions that they make and grant Carnegie Mellon
        !            24:  * the rights to redistribute these changes.
        !            25:  */
        !            26: /*
        !            27:  *     File:   vm/vm_fault.h
        !            28:  *
        !            29:  *     Page fault handling module declarations.
        !            30:  */
        !            31: 
        !            32: #ifndef        _VM_VM_FAULT_H_
        !            33: #define _VM_VM_FAULT_H_
        !            34: 
        !            35: #include <mach/kern_return.h>
        !            36: 
        !            37: /*
        !            38:  *     Page fault handling based on vm_object only.
        !            39:  */
        !            40: 
        !            41: typedef        kern_return_t   vm_fault_return_t;
        !            42: #define VM_FAULT_SUCCESS               0
        !            43: #define VM_FAULT_RETRY                 1
        !            44: #define VM_FAULT_INTERRUPTED           2
        !            45: #define VM_FAULT_MEMORY_SHORTAGE       3
        !            46: #define VM_FAULT_FICTITIOUS_SHORTAGE   4
        !            47: #define VM_FAULT_MEMORY_ERROR          5
        !            48: 
        !            49: extern void vm_fault_init();
        !            50: extern vm_fault_return_t vm_fault_page();
        !            51: 
        !            52: extern void            vm_fault_cleanup();
        !            53: /*
        !            54:  *     Page fault handling based on vm_map (or entries therein)
        !            55:  */
        !            56: 
        !            57: extern kern_return_t   vm_fault();
        !            58: extern void            vm_fault_wire();
        !            59: extern void            vm_fault_unwire();
        !            60: 
        !            61: extern kern_return_t   vm_fault_copy();        /* Copy pages from
        !            62:                                                 * one object to another
        !            63:                                                 */
        !            64: #endif /* _VM_VM_FAULT_H_ */

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