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
44extern "C" {
45#endif
46
47#include <ext4_config.h>
48#include <ext4_types.h>
49#include <ext4_inode.h>
50
51void ext4_extent_tree_init(struct ext4_inode_ref *inode_ref);
52
53
54int 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 */
63int 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