1 | /* |
2 | * Copyright (c) 2013 Grzegorz Kostka (kostka.grzegorz@gmail.com) |
3 | * |
4 | * HelenOS: |
5 | * Copyright (c) 2012 Martin Sucha |
6 | * Copyright (c) 2012 Frantisek Princ |
7 | * All rights reserved. |
8 | * |
9 | * Redistribution and use in source and binary forms, with or without |
10 | * modification, are permitted provided that the following conditions |
11 | * are met: |
12 | * |
13 | * - Redistributions of source code must retain the above copyright |
14 | * notice, this list of conditions and the following disclaimer. |
15 | * - Redistributions in binary form must reproduce the above copyright |
16 | * notice, this list of conditions and the following disclaimer in the |
17 | * documentation and/or other materials provided with the distribution. |
18 | * - The name of the author may not be used to endorse or promote products |
19 | * derived from this software without specific prior written permission. |
20 | * |
21 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
22 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
23 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
24 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
25 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
26 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
27 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
28 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
29 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
30 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
31 | */ |
32 | |
33 | /** @addtogroup lwext4 |
34 | * @{ |
35 | */ |
36 | /** |
37 | * @file ext4_extent.h |
38 | * @brief More complex filesystem functions. |
39 | */ |
40 | #ifndef EXT4_EXTENT_H_ |
41 | #define EXT4_EXTENT_H_ |
42 | |
43 | #ifdef __cplusplus |
44 | extern "C" { |
45 | #endif |
46 | |
47 | #include <ext4_config.h> |
48 | #include <ext4_types.h> |
49 | #include <ext4_inode.h> |
50 | |
51 | void ext4_extent_tree_init(struct ext4_inode_ref *inode_ref); |
52 | |
53 | |
54 | int ext4_extent_get_blocks(struct ext4_inode_ref *inode_ref, ext4_lblk_t iblock, |
55 | uint32_t max_blocks, ext4_fsblk_t *result, bool create, |
56 | uint32_t *blocks_count); |
57 | |
58 | |
59 | /**@brief Release all data blocks starting from specified logical block. |
60 | * @param inode_ref I-node to release blocks from |
61 | * @param iblock_from First logical block to release |
62 | * @return Error code */ |
63 | int ext4_extent_remove_space(struct ext4_inode_ref *inode_ref, ext4_lblk_t from, |
64 | ext4_lblk_t to); |
65 | |
66 | |
67 | #ifdef __cplusplus |
68 | } |
69 | #endif |
70 | |
71 | #endif /* EXT4_EXTENT_H_ */ |
72 | /** |
73 | * @} |
74 | */ |
75 | |