super.h

#ifndef _SUPER_H
#define _SUPER_H

#include <stdio.h>
#include "testfs.h"
#include "tx.h"

#define MAX_STORAGE BLOCK_SIZE*1024

struct hlist_head;

struct dsuper_block {
        int inode_freemap_start;
        int block_freemap_start;
        int csum_table_start;   
        int inode_blocks_start;
        int data_blocks_start;
        int modification_time;
};

struct super_block {
        struct dsuper_block sb;
        struct bitmap *inode_freemap;
        struct bitmap *block_freemap;
        tx_type tx_in_progress;    

        // TODO: add your code here
        int *csum_table;
        struct hlist_head *inode_hash_table;

        char *storage;
};

struct super_block *testfs_make_super_block(char* storage);
void testfs_make_inode_freemap(struct super_block *sb);
void testfs_make_block_freemap(struct super_block *sb);
void testfs_make_csum_table(struct super_block *sb);
void testfs_make_inode_blocks(struct super_block *sb);

int testfs_init_super_block(const char *storage, int corrupt, 
    struct super_block **sbp);
void testfs_write_super_block(struct super_block *sb);
void testfs_close_super_block(struct super_block *sb);

int testfs_get_inode_freemap(struct super_block *sb);
void testfs_put_inode_freemap(struct super_block *sb, int inode_nr);

int testfs_alloc_block(struct super_block *sb, char *block);
int testfs_free_block(struct super_block *sb, int block_nr);

#endif /* _SUPER_H */