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 #include <stdint.h> 21 22 #ifdef __cplusplus 23 extern "C" { 24 #endif 25 26 #define ver_after(a, b) (typecheck(unsigned long long, a) && \ 27 typecheck(unsigned long long, b) && \ 28 ((long long)((a) - (b)) > 0)) 29 30 #define ver_equal(a, b) (typecheck(unsigned long long, a) && \ 31 typecheck(unsigned long long, b) && \ 32 ((long long)((a) - (b)) == 0)) 33 34 struct f2fs_sit_block; 35 struct f2fs_summary_block; 36 37 struct f2fs_info { 38 uint64_t blocks_per_segment; 39 uint32_t block_size; 40 41 char *sit_bmp; 42 uint32_t sit_bmp_size; 43 uint64_t blocks_per_sit; 44 struct f2fs_sit_block *sit_blocks; 45 struct f2fs_summary_block *sit_sums; 46 47 uint64_t cp_blkaddr; 48 uint64_t cp_valid_cp_blkaddr; 49 50 uint64_t sit_blkaddr; 51 52 uint64_t nat_blkaddr; 53 54 uint64_t ssa_blkaddr; 55 56 uint64_t main_blkaddr; 57 58 uint64_t total_user_used; 59 uint64_t total_blocks; 60 }; 61 62 uint64_t get_num_blocks_used(struct f2fs_info *info); 63 struct f2fs_info *generate_f2fs_info(int fd); 64 void free_f2fs_info(struct f2fs_info *info); 65 unsigned int get_f2fs_filesystem_size_sec(char *dev); 66 int run_on_used_blocks(uint64_t startblock, struct f2fs_info *info, int (*func)(uint64_t pos, void *data), void *data); 67 68 #ifdef __cplusplus 69 } 70 #endif 71 72 #endif // F2FS_UTILS_F2F2_UTILS_H_ 73