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1/*
2 * Copyright (c) 1999, 2000-2002 Apple Computer, Inc. All rights reserved.
3 *
4 * @APPLE_LICENSE_HEADER_START@
5 *
6 * Copyright (c) 1999-2003 Apple Computer, Inc. All Rights Reserved.
7 *
8 * This file contains Original Code and/or Modifications of Original Code
9 * as defined in and that are subject to the Apple Public Source License
10 * Version 2.0 (the 'License'). You may not use this file except in
11 * compliance with the License. Please obtain a copy of the License at
12 * http://www.opensource.apple.com/apsl/ and read it before using this
13 * file.
14 *
15 * The Original Code and all software distributed under the License are
16 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
17 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
18 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
19 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
20 * Please see the License for the specific language governing rights and
21 * limitations under the License.
22 *
23 * @APPLE_LICENSE_HEADER_END@
24 */
25
26#ifndef __VN_SHADOW_H__
27#define __VN_SHADOW_H__
28
29#include <sys/appleapiopts.h>
30
31#ifdef __APPLE_API_PRIVATE
32
33typedef struct shadow_map shadow_map_t;
34
35boolean_t
36shadow_map_read(shadow_map_t * map, u_long block_offset, u_long block_count,
37 u_long * incr_block_offset, u_long * incr_block_count);
38boolean_t
39shadow_map_write(shadow_map_t * map, u_long block_offset, u_long block_count,
40 u_long * incr_block_offset, u_long * incr_block_count);
41u_long
42shadow_map_shadow_size(shadow_map_t * map);
43
44shadow_map_t *
45shadow_map_create(off_t file_size, off_t shadow_size,
46 unsigned long band_size, unsigned long block_size);
47
48#endif /* __APPLE_API_PRIVATE */
49#endif /* __VN_SHADOW_H__ */
50
51
52