SimpleFileSyetem/FileSystem.h at master · iscooool/SimpleFileSyetem · GitHub

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/**
 * Project Untitled
 */


#ifndef _FILESYSTEM_H
#define _FILESYSTEM_H
#include<iostream>
#include "SuperBlock.h"

#include "Inode.h"
using namespace::std;
class FileSystem {
public:

    static const int SUPER_BLOCK_SECTOR_NUMBER = 0;
    static const int ROOTINO = 0;
    static const int INODE_NUMBER_PER_SECTOR = 8;
    static const int INODE_ZONE_START_SECTOR = 2;
    static const int INODE_ZONE_SIZE = 1024 - 2;
    static const int DATA_ZONE_START_SECTOR = 1024;
    static const int DATA_ZONE_END_SECTOR = 18000 - 1;
    static const int DATA_ZONE_SIZE = 18000 - DATA_ZONE_START_SECTOR;
    SuperBlock* f_SuperBlock;

   /**
    * @comment 初始化
    *
    */
    void Initialize();


   /*
    *@comment 加载SuperBlock到内存当中
    *
    */
    void LoadSuperBlock();

    /*
     * @comment 返回当前的SuperBlock
     *
     */

    SuperBlock* GetFS();
   /*
    * @comment 更新SuperBlock到硬盘当中
    *
    */
    void Update();
   /*
    * @comment 分配Inode结点
    *
    */
    Inode* IAlloc();

    /**
     * @param number
     * @comment 释放Inode结点
     */
    void IFree(int number);
   /*
    * @comment 分配DIskBlock
    *
    */
    int Alloc();

    /**
     * @param blkno
     * @comment 释放DiskBlock
     */
    void Free(int blkno);
public:

    FileSystem();
    ~FileSystem();
};

#endif //_FILESYSTEM_H