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Annotation of OSKit-Mach/vm/vm_fault.h, revision 1.1.1.1

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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