projects / apple / xnu.git / blame
| Commit | Line | Data |
|---|---|---|
| 1c79356b | 1 | /* |
| 5d5c5d0d A |
2 | * Copyright (c) 1999, 2000-2002 Apple Computer, Inc. All rights reserved. |
| 3 | * | |
| 8ad349bb | 4 | * @APPLE_LICENSE_OSREFERENCE_HEADER_START@ |
| 1c79356b | 5 | * |
| 8ad349bb A |
6 | * This file contains Original Code and/or Modifications of Original Code |
| 7 | * as defined in and that are subject to the Apple Public Source License | |
| 8 | * Version 2.0 (the 'License'). You may not use this file except in | |
| 9 | * compliance with the License. The rights granted to you under the | |
| 10 | * License may not be used to create, or enable the creation or | |
| 11 | * redistribution of, unlawful or unlicensed copies of an Apple operating | |
| 12 | * system, or to circumvent, violate, or enable the circumvention or | |
| 13 | * violation of, any terms of an Apple operating system software license | |
| 14 | * agreement. | |
| 15 | * | |
| 16 | * Please obtain a copy of the License at | |
| 17 | * http://www.opensource.apple.com/apsl/ and read it before using this | |
| 18 | * file. | |
| 19 | * | |
| 20 | * The Original Code and all software distributed under the License are | |
| 21 | * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER | |
| 22 | * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, | |
| 23 | * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, | |
| 24 | * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. | |
| 25 | * Please see the License for the specific language governing rights and | |
| 26 | * limitations under the License. | |
| 27 | * | |
| 28 | * @APPLE_LICENSE_OSREFERENCE_HEADER_END@ | |
| 1c79356b | 29 | */ |
| 1c79356b | 30 | |
| 9bccf70c A |
31 | #ifndef __VN_SHADOW_H__ |
| 32 | #define __VN_SHADOW_H__ | |
| 1c79356b | 33 | |
| 9bccf70c | 34 | #include <sys/appleapiopts.h> |
| 1c79356b | 35 | |
| 9bccf70c | 36 | #ifdef __APPLE_API_PRIVATE |
| 1c79356b | 37 | |
| 9bccf70c | 38 | typedef struct shadow_map shadow_map_t; |
| 1c79356b | 39 | |
| 9bccf70c A |
40 | boolean_t |
| 41 | shadow_map_read(shadow_map_t * map, u_long block_offset, u_long block_count, | |
| 42 | u_long * incr_block_offset, u_long * incr_block_count); | |
| 43 | boolean_t | |
| 44 | shadow_map_write(shadow_map_t * map, u_long block_offset, u_long block_count, | |
| 45 | u_long * incr_block_offset, u_long * incr_block_count); | |
| 91447636 A |
46 | boolean_t |
| 47 | shadow_map_is_written(shadow_map_t * map, u_long block_offset); | |
| 48 | ||
| 9bccf70c A |
49 | u_long |
| 50 | shadow_map_shadow_size(shadow_map_t * map); | |
| 1c79356b | 51 | |
| 9bccf70c A |
52 | shadow_map_t * |
| 53 | shadow_map_create(off_t file_size, off_t shadow_size, | |
| 54 | unsigned long band_size, unsigned long block_size); | |
| 91447636 A |
55 | void |
| 56 | shadow_map_free(shadow_map_t * map); | |
| 1c79356b | 57 | |
| 9bccf70c A |
58 | #endif /* __APPLE_API_PRIVATE */ |
| 59 | #endif /* __VN_SHADOW_H__ */ | |
| 1c79356b A |
60 | |
| 61 | ||
| 1c79356b | 62 |