1/*
2 * Copyright (C) 2014 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17#ifndef F2FS_UTILS_F2F2_UTILS_H_
18#define F2FS_UTILS_F2F2_UTILS_H_
19
20#ifdef __cplusplus
21extern "C" {
22#endif
23
24
25
26
27
28#define ver_after(a, b) (typecheck(unsigned long long, a) &&            \
29    typecheck(unsigned long long, b) &&                     \
30    ((long long)((a) - (b)) > 0))
31
32#define ver_equal(a, b) (typecheck(unsigned long long, a) &&            \
33    typecheck(unsigned long long, b) &&                     \
34    ((long long)((a) - (b)) == 0))
35
36struct f2fs_sit_block;
37struct f2fs_summary_block;
38
39struct f2fs_info {
40    u_int64_t blocks_per_segment;
41    u_int32_t block_size;
42
43    char *sit_bmp;
44    u_int32_t sit_bmp_size;
45    u_int64_t blocks_per_sit;
46    struct f2fs_sit_block *sit_blocks;
47    struct f2fs_summary_block *sit_sums;
48
49    u_int64_t cp_blkaddr;
50    u_int64_t cp_valid_cp_blkaddr;
51
52    u_int64_t sit_blkaddr;
53
54    u_int64_t nat_blkaddr;
55
56    u_int64_t ssa_blkaddr;
57
58    u_int64_t main_blkaddr;
59
60    u_int64_t total_user_used;
61    u_int64_t total_blocks;
62};
63
64u64 get_num_blocks_used(struct f2fs_info *info);
65struct f2fs_info *generate_f2fs_info(int fd);
66void free_f2fs_info(struct f2fs_info *info);
67unsigned int get_f2fs_filesystem_size_sec(char *dev);
68int run_on_used_blocks(u64 startblock, struct f2fs_info *info, int (*func)(u64 pos, void *data), void *data);
69
70#ifdef __cplusplus
71}
72#endif
73
74#endif  // F2FS_UTILS_F2F2_UTILS_H_
75