Return to pager.defs CVS log

Up to [Apple Darwin 0.x] / kernel / kern

Annotation of kernel/kern/pager.defs, revision 1.1

1.1     ! root        1: /*
        !             2:  * Copyright (c) 1999 Apple Computer, Inc. All rights reserved.
        !             3:  *
        !             4:  * @APPLE_LICENSE_HEADER_START@
        !             5:  * 
        !             6:  * Portions Copyright (c) 1999 Apple Computer, Inc.  All Rights
        !             7:  * Reserved.  This file contains Original Code and/or Modifications of
        !             8:  * Original Code as defined in and that are subject to the Apple Public
        !             9:  * Source License Version 1.1 (the "License").  You may not use this file
        !            10:  * except in compliance with the License.  Please obtain a copy of the
        !            11:  * License at http://www.apple.com/publicsource and read it before using
        !            12:  * this file.
        !            13:  * 
        !            14:  * The Original Code and all software distributed under the License are
        !            15:  * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
        !            16:  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
        !            17:  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
        !            18:  * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
        !            19:  * License for the specific language governing rights and limitations
        !            20:  * under the License.
        !            21:  * 
        !            22:  * @APPLE_LICENSE_HEADER_END@
        !            23:  */
        !            24: 
        !            25: /* 
        !            26:  * Mach Operating System
        !            27:  * Copyright (c) 1987 Carnegie-Mellon University
        !            28:  * All rights reserved.  The CMU software License Agreement specifies
        !            29:  * the terms and conditions for use and redistribution.
        !            30:  */
        !            31: 
        !            32: subsystem pager 2200;
        !            33: 
        !            34: /*
        !            35:  * File:       kern/pager.defs
        !            36:  *
        !            37:  * Abstract:
        !            38:  *     Basic Mach external memory management interface declaration.
        !            39:  *     [See kern/pager_default.defs for the interface for default pagers.]
        !            40:  *
        !            41:  * HISTORY
        !            42:  *  9-Dec-87  Michael Young (mwyoung) at Carnegie-Mellon University
        !            43:  *     Split that part of the interface applicable only to default
        !            44:  *     pagers into a separate interface definition.
        !            45:  *
        !            46:  *     Documented the interface.
        !            47:  *     
        !            48:  *     Purged history.  Contributors so far: jle, mwyoung, bolosky.
        !            49:  *
        !            50:  */
        !            51: 
        !            52: /*
        !            53:  *     Basic types
        !            54:  */
        !            55: 
        !            56: type int = MSG_TYPE_INTEGER_32;
        !            57: type boolean_t = MSG_TYPE_BOOLEAN;
        !            58: 
        !            59: type port_t = MSG_TYPE_PORT;
        !            60: type port_all_t = MSG_TYPE_PORT_ALL;
        !            61: type paging_object_t = port_t;
        !            62: type vm_offset_t = int;
        !            63: type vm_size_t = int;
        !            64: type vm_prot_t = int;
        !            65: 
        !            66: type pointer_t = ^array [] of (MSG_TYPE_INTEGER_8, 8);
        !            67: 
        !            68: import <mach/mach_types.h>;
        !            69: 
        !            70: /*
        !            71:  *     Initialize the specified memory object, providing
        !            72:  *     a reqeust port on which control calls can be made, and
        !            73:  *     a name port that identifies this object to callers of
        !            74:  *     vm_regions.
        !            75:  *     [No reply expected.]
        !            76:  */
        !            77: simpleroutine  pager_init(
        !            78:                paging_object           : paging_object_t;
        !            79:                pager_request_port      : port_t;
        !            80:                pager_name              : port_t;
        !            81:                page_size               : vm_size_t);
        !            82: 
        !            83: skip;
        !            84: 
        !            85: skip;
        !            86: /* Removed until we know how we'll use it */
        !            87: /*
        !            88:  simpleroutine pager_copy(
        !            89:                old_paging_object       : paging_object_t;
        !            90:                offset                  : vm_offset_t;
        !            91:                length                  : vm_size_t;
        !            92:                new_paging_object       : port_all_t;
        !            93:                new_request_port        : port_t;
        !            94:                new_name                : port_t;
        !            95:                new_page_size           : vm_size_t); */
        !            96: 
        !            97: /*
        !            98:  *     Request data from this memory object.  At least
        !            99:  *     the specified data should be returned with at
        !           100:  *     least the specified access permitted.
        !           101:  *     [Reply should be pager_data_provided.]
        !           102:  */
        !           103: simpleroutine  pager_data_request(
        !           104:                paging_object           : paging_object_t;
        !           105:                pager_request_port      : port_t;
        !           106:                offset                  : vm_offset_t;
        !           107:                length                  : vm_size_t;
        !           108:                desired_access          : vm_prot_t);
        !           109: 
        !           110: /*
        !           111:  *     Request that the specified portion of this
        !           112:  *     memory object be unlocked to allow the specified
        !           113:  *     forms of access; the kernel already has the data.
        !           114:  *     [Reply should be pager_lock_request.]
        !           115:  */
        !           116: simpleroutine  pager_data_unlock(
        !           117:                paging_object           : paging_object_t;
        !           118:                pager_request_port      : port_t;
        !           119:                offset                  : vm_offset_t;
        !           120:                length                  : vm_size_t;
        !           121:                desired_access          : vm_prot_t);
        !           122: 
        !           123: /*
        !           124:  *     Write back modifications made to this portion of
        !           125:  *     the memory object while in memory.
        !           126:  *     Unless explicitly requested by a pager_lock_request
        !           127:  *     (clean, but not flush), the kernel will not continue
        !           128:  *     to use this data.
        !           129:  *     [Reply should be vm_deallocate to release the data.]
        !           130:  */
        !           131: simpleroutine  pager_data_write(
        !           132:                paging_object           : paging_object_t;
        !           133:                pager_request_port      : port_t;
        !           134:                offset                  : vm_offset_t;
        !           135:                data                    : pointer_t);
        !           136: 
        !           137: /*
        !           138:  *     Indicate that a previous pager_lock_reqeust has been
        !           139:  *     completed.  Note that this call is made on whatever
        !           140:  *     port is specified in the pager_lock_request; that need
        !           141:  *     not be the memory object port itself.
        !           142:  *     [No reply expected.]
        !           143:  */
        !           144: simpleroutine  pager_lock_completed(
        !           145:                paging_object           : paging_object_t;
        !           146:                pager_request_port      : port_t;
        !           147:                offset                  : vm_offset_t;
        !           148:                length                  : vm_size_t);

This archive runs on limited infrastructure. Preserving old code on modern bandwidth. Automated agents are requested to crawl responsibly.