source: mainline/uspace/lib/ext4/libext4_extent.h@ 1fff583

lfn serial ticket/834-toolchain-update topic/msim-upgrade topic/simplify-dev-export
Last change on this file since 1fff583 was ce6de59, checked in by Frantisek Princ <frantisek.princ@…>, 13 years ago

First part → allocating first block to extent (not for extent with some blocks)

  • Property mode set to 100644
File size: 3.2 KB
Line 
1/*
2 * Copyright (c) 2011 Frantisek Princ
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 *
9 * - Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * - Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 * - The name of the author may not be used to endorse or promote products
15 * derived from this software without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 */
28
29/** @addtogroup libext4
30 * @{
31 */
32
33#ifndef LIBEXT4_LIBEXT4_EXTENT_H_
34#define LIBEXT4_LIBEXT4_EXTENT_H_
35
36#include "libext4_types.h"
37
38extern uint32_t ext4_extent_get_first_block(ext4_extent_t *);
39extern void ext4_extent_set_first_block(ext4_extent_t *, uint32_t);
40extern uint16_t ext4_extent_get_block_count(ext4_extent_t *);
41extern void ext4_extent_set_block_count(ext4_extent_t *, uint16_t);
42extern uint64_t ext4_extent_get_start(ext4_extent_t *);
43extern void ext4_extent_set_start(ext4_extent_t *, uint64_t);
44
45extern uint32_t ext4_extent_index_get_first_block(ext4_extent_index_t *);
46extern void ext4_extent_index_set_first_block(ext4_extent_index_t *, uint32_t);
47extern uint64_t ext4_extent_index_get_leaf(ext4_extent_index_t *);
48extern void ext4_extent_index_set_leaf(ext4_extent_index_t *, uint64_t);
49
50extern uint16_t ext4_extent_header_get_magic(ext4_extent_header_t *);
51extern void ext4_extent_header_set_magic(ext4_extent_header_t *, uint16_t);
52extern uint16_t ext4_extent_header_get_entries_count(ext4_extent_header_t *);
53extern void ext4_extent_header_set_entries_count(ext4_extent_header_t *,
54 uint16_t);
55extern uint16_t ext4_extent_header_get_max_entries_count(ext4_extent_header_t *);
56extern void ext4_extent_header_set_max_entries_count(ext4_extent_header_t *,
57 uint16_t);
58extern uint16_t ext4_extent_header_get_depth(ext4_extent_header_t *);
59extern void ext4_extent_header_set_depth(ext4_extent_header_t *, uint16_t);
60extern uint32_t ext4_extent_header_get_generation(ext4_extent_header_t *);
61extern void ext4_extent_header_set_generation(ext4_extent_header_t *, uint32_t);
62
63extern int ext4_extent_find_block(ext4_inode_ref_t *, uint32_t, uint32_t *);
64extern int ext4_extent_release_blocks_from(ext4_inode_ref_t *, uint32_t);
65
66extern int ext4_extent_append_block(ext4_inode_ref_t *, uint32_t *, uint32_t *);
67
68#endif
69
70/**
71 * @}
72 */
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