libomfs/omfs.h

   1 #ifndef _OMFS_H
   2 #define _OMFS_H
   3
   4 #include <stdio.h>
   5 #include "config.h"
   6 #include "omfs_fs.h"
   7 #include "crc.h"
   8
   9 struct omfs_info {
  10     FILE *dev;
  11     struct omfs_super_block *super;
  12     struct omfs_root_block *root;
  13     struct omfs_bitmap *bitmap;
  14     int swap;
  15     pthread_mutex_t dev_mutex;
  16 };
  17
  18 struct omfs_bitmap {
  19     u8 *dirty;
  20     u8 *bmap;
  21 };
  22
  23 typedef struct omfs_info omfs_info_t;
  24 typedef struct omfs_header omfs_header_t;
  25 typedef struct omfs_super_block omfs_super_t;
  26 typedef struct omfs_bitmap omfs_bitmap_t;
  27 typedef struct omfs_root_block omfs_root_t;
  28 typedef struct omfs_inode omfs_inode_t;
  29
  30 int omfs_read_super(omfs_info_t *info);
  31 int omfs_write_super(omfs_info_t *info);
  32 int omfs_read_root_block(omfs_info_t *info);
  33 int omfs_write_root_block(omfs_info_t *info);
  34 u8 *omfs_get_block(omfs_info_t *info, u64 block);
  35 int omfs_write_block(omfs_info_t *info, u64 block, u8* buf);
  36 void omfs_release_block(u8 *buf);
  37 int omfs_check_crc(u8 *blk);
  38 omfs_inode_t *omfs_get_inode(omfs_info_t *info, u64 block);
  39 int omfs_write_inode(omfs_info_t *info, omfs_inode_t *inode);
  40 void omfs_release_inode(omfs_inode_t *inode);
  41 void omfs_sync(omfs_info_t *info);
  42 int omfs_load_bitmap(omfs_info_t *info);
  43 int omfs_flush_bitmap(omfs_info_t *info);
  44 int omfs_compute_hash(omfs_info_t *info, char *filename);
  45 omfs_inode_t *omfs_new_inode(omfs_info_t *info, u64 block, char *name,
  46     char type);
  47 void omfs_clear_data(omfs_info_t *info, u64 block, int count);
  48
  49 /* bitmap.c */
  50 int omfs_allocate_one_block(omfs_info_t *info, u64 block);
  51 int omfs_allocate_block(omfs_info_t *info, int size, u64 *return_block);
  52 int omfs_clear_range(omfs_info_t *info, u64 start, int count);
  53 unsigned long omfs_count_free(omfs_info_t *info);
  54
  55 #endif