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- /*
- * Mach Operating System
- * Copyright (c) 1991,1990,1989,1988 Carnegie Mellon University
- * All Rights Reserved.
- *
- * Permission to use, copy, modify and distribute this software and its
- * documentation is hereby granted, provided that both the copyright
- * notice and this permission notice appear in all copies of the
- * software, derivative works or modified versions, and any portions
- * thereof, and that both notices appear in supporting documentation.
- *
- * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
- * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
- * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
- *
- * Carnegie Mellon requests users of this software to return to
- *
- * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
- * School of Computer Science
- * Carnegie Mellon University
- * Pittsburgh PA 15213-3890
- *
- * any improvements or extensions that they make and grant Carnegie Mellon
- * the rights to redistribute these changes.
- */
- /*
- * HISTORY
- * $Log: memory_object.h,v $
- * Revision 2.9 93/01/14 17:44:47 danner
- * Cleanup.
- * [92/06/10 pds]
- *
- * Revision 2.8 92/05/21 17:22:24 jfriedl
- * Removed coment starter from within comments to shut up gcc warnings.
- * [92/05/16 jfriedl]
- *
- * Revision 2.7 92/03/10 16:27:05 jsb
- * Added MEMORY_OBJECT_COPY_TEMPORARY.
- * [92/02/11 07:56:35 jsb]
- *
- * Revision 2.6 91/08/28 11:15:22 jsb
- * Add defs for memory_object_return_t.
- * [91/07/03 14:06:26 dlb]
- *
- * Revision 2.5 91/05/18 14:35:05 rpd
- * Removed memory_manager_default.
- * [91/03/22 rpd]
- *
- * Revision 2.4 91/05/14 16:55:55 mrt
- * Correcting copyright
- *
- * Revision 2.3 91/02/05 17:34:01 mrt
- * Changed to new Mach copyright
- * [91/02/01 17:19:11 mrt]
- *
- * Revision 2.2 90/06/02 14:58:56 rpd
- * Converted to new IPC.
- * [90/03/26 22:35:26 rpd]
- *
- * Revision 2.1 89/08/03 16:02:52 rwd
- * Created.
- *
- * Revision 2.5 89/02/25 18:38:23 gm0w
- * Changes for cleanup.
- *
- * Revision 2.4 89/02/07 00:54:07 mwyoung
- * Relocated from vm/memory_object.h
- *
- * Revision 2.3 89/01/30 22:08:42 rpd
- * Updated includes to the new style. Fixed log.
- * Made variable declarations use "extern".
- * [89/01/25 15:25:20 rpd]
- */
- /*
- * File: memory_object.h
- * Author: Michael Wayne Young
- *
- * External memory management interface definition.
- */
-
- #ifndef _MACH_MEMORY_OBJECT_H_
- #define _MACH_MEMORY_OBJECT_H_
-
- /*
- * User-visible types used in the external memory
- * management interface:
- */
-
- #import <mach/port.h>
-
- typedef mach_port_t memory_object_t;
- /* Represents a memory object ... */
- /* Used by user programs to specify */
- /* the object to map; used by the */
- /* kernel to retrieve or store data */
-
- typedef mach_port_t memory_object_control_t;
- /* Provided to a memory manager; ... */
- /* used to control a memory object */
-
- typedef mach_port_t memory_object_name_t;
- /* Used to describe the memory ... */
- /* object in vm_regions() calls */
-
- typedef int memory_object_copy_strategy_t;
- /* How memory manager handles copy: */
- #define MEMORY_OBJECT_COPY_NONE 0
- /* ... No special support */
- #define MEMORY_OBJECT_COPY_CALL 1
- /* ... Make call on memory manager */
- #define MEMORY_OBJECT_COPY_DELAY 2
- /* ... Memory manager doesn't ... */
- /* change data externally. */
- #define MEMORY_OBJECT_COPY_TEMPORARY 3
- /* ... Memory manager doesn't ... */
- /* change data externally, and */
- /* doesn't need to see changes. */
-
- typedef int memory_object_return_t;
- /* Which pages to return to manager
- this time (lock_request) */
- #define MEMORY_OBJECT_RETURN_NONE 0
- /* ... don't return any. */
- #define MEMORY_OBJECT_RETURN_DIRTY 1
- /* ... only dirty pages. */
- #define MEMORY_OBJECT_RETURN_ALL 2
- /* ... dirty and precious pages. */
-
- #define MEMORY_OBJECT_NULL MACH_PORT_NULL
-
- #endif /* _MACH_MEMORY_OBJECT_H_ */
-