#include?
#include?
#include?
#include?

#define?BLOCKSIZE?1024
#define?SIZE?1024?*?1024//1?M
#define?END?65535?//EOF
#define?FREE?48
#define?USED?49
#define?FCBBLOCKNUM?100
#define?MAXLENGTH?10
#define?MAXOPEN?5
#define?COMMANDNUM?14

#define?ERROR_DISK_NO_SPACE?????????????????????????????????????99

#define?ERROR_MKDIR_IS_FULL?			100
#define?ERROR_MKDIR_CONFLICT_NAME?		101
#define?ERROR_MKDIR_USELESS_DIRNAME?		102
#define?ERROR_MKFILE_IS_FULL?			103
#define?ERROR_CD_PATH_NOT_FOUND			104
#define?ERROR_RM_FILE_NOT_FOUND			105
#define?ERROR_RM_DIR_IS_NOT_EMPTY		106
//#define?ERROR_WRITE_FILE_NOT_FOUND		107
#define?ERROR_READ_FILE_NOT_FOUND		108
#define?ERROR_READ_FILE_IS_EMPTY			109
#define?ERROR_WRITE_FILE_NOT_FOUND		110
#define?ERROR_OPEN_FILE_NOT_FOUND		111
#define?ERROR_OPEN_FILE_IS_OPENED		112
#define?ERROR_OPEN_OPENTABLE_IS_FULL????????????????????113
#define?ERROR_CLOSE_FILE_NOT_FOUND		114
#define?ERROR_CLOSE_FILE_NOT_OPENED		115
#define?ERROR_CP_SRCFILE_NOT_FOUND??????????????????????116
#define?ERROR_CP_DSTFILE_IS_EXIST??????????????????????????????117
#define?ERROR_CP_IS_FULL??????????????????????????????????????????????118

typedef?struct?_FCB{
	int?id;
	//int?pid;//each?dir?has?a?parent?id
	char?filename[8];
	char?isdir;//1:yes?2?no
	struct?tm?data_time;
	unsigned?int?firstblock;
	unsigned?int?size;
	int?record[10];?//10?file?in?one?dir?most?or?10?blocks?in?one?file
	int?length;
}FCB;

typedef?struct?_OPENTABLE{
	char?name[20];
	struct?tm?data_time;
	int?size;
}OPENTABLE;

typedef?struct?_FILEOPEN{
	OPENTABLE?opened[MAXOPEN];
	int?opennum;
}FILEOPEN;

#define?MAXFILENUM?FCBBLOCKNUM?*?BLOCKSIZE?*?sizeof（char）?/?sizeof（FCB）
FCB?*root;
FCB?*cur_dir;
FILEOPEN?fileopened;
FILE?*fp;
int?id?=?1;
int?fd?=?-1;
char?currentdir[80];
int?currentid?=?0;
char?*fdisk;
time_t?timep;
int?GetCommandType（char?*command）;

void?LoadSys（）;
void?InitSystem（）;
//void?mShowMenu（）;
void?mFormat（）;
int?mMkdir（）;
void?mLs（void）;
int?mCd（void）;
int?mMkfile（void）;
int?mOpen（void）;
int?mClose（void）;
int?mRead（void）;
int?mWrite（void）;
int?mCp（void）;
int?mRm（void）;
void?mExit（void）;
void?ErrorConfig（int?errorcode）;
void?FreeFCB（FCB?*fcb）;

int?BackUp（void）;





//0	command?not?exist
//1	format
//2	mkdir
//3	ls
//4	cd
//5	mkfile
//6	open
//7	close
//8	read
//9	write
//10	cp
//11	rm
//12	exit
int?GetCommandType（char?*command）
{
	char?cmd[COMMANDNUM][10]?=?{
		““?“format“?“mkdir“?“ls“?“cd“???????????//0:““?1:format?2:mkdir?3:ls?4:cd
		“mkfile“?“open“?“close“?“read“?????????//5:mkfile?6:open?7:close?8:read
		“write“?“cp“?“rm“?“exit“?“backup“?????????????????????//9:write?10:cp?11:rm?12:exit
	};
	int?i;
	for（i?=?0;?i?	{
		if（strcmp（cmd[i]?command）?==?0）
			return?i;
	}
	return?0;
}

void?LoadSys（）
{
	fileopened.opennum?=?0;
	if（（fp?=?fopen（“VirtualDisk.txt“?“rb“））?==?NULL）
	{
		printf（“LoadSys?:?file?doesn‘t?exist!\n“）;
		//getchar（）;
		//fclose（fp）;
		InitSystem（）;?//?file?doesn‘t?exist
		r

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件????1048576??2015-03-13?09:45??5-vfs\backup.disk

?????文件?????????49??2015-03-12?19:49??5-vfs\makefile

?????文件??????22743??2015-03-12?20:14??5-vfs\vfs.c

?????文件????1048576??2015-03-13?09:44??5-vfs\VirtualDisk.txt

?????目錄??????????0??2015-04-14?17:26??5-vfs

-----------?---------??----------?-----??----

??????????????2119944????????????????????5