#include "stdio.h"
#include "stdlib.h"
#include "conio.h"
#include "head1.c"
#include "win.c"
#include "interface.c"

createfile()  /*建立文件*/
{int len,flag,i;
int bit[NB];
int flength,soyinum,bitnum,filenum,mlnum,f;
char fname[11],next/*,wcont[100]*/;

/*for(i=0;i<NB;i++)*/
/* bit=0;*/ /*位示圖初始成0000000000*/

rein:printf("\ncreatefile()輸入文件名：");
scanf("%s",fname);
printf("\n %s",fname);
if(strlen(fname)>11){
      printf("文件名 %s 太長(<=11個字符)",fname);
                     goto rein;
                   }
filenum=sechfil(fname);/*從目錄表中查找有無相同的*/
if(filenum>=0)printf("\n目錄中已經存在該文件！目錄號為:%d,\n",filenum);
flength=getfilelen(fname);/******獲取文件名，取得長度*********/
if(flength==-1||filenum>=0){
 do{        /*嘗試進行另外一個文件*/
          printf("\n Want To Continue???(Y/N)");
           scanf("%c",&next);
          }while(!(next=='n'||next=='N'||next=='Y'||next=='y'));
         if(next=='y'||next=='Y')
             {
                 goto rein;
              }
        }
else{
printf("\n file length :%d",flength);
getche();

soyinum=sechsuoyin();
printf("\n soyinum:%d",soyinum);
getche();

/*for(i=0;i<600;i++)*/
/* bit=0;*/
bitnum=sechbit(flength);
mlnum=searchml();
if(soyinum!=ERROR&&bitnum!=ERROR&&mlnum!=ERROR)
{printf("\n經查找可為該文件分配！位置：索引:%d,位示圖:%d 目錄:%d \n正在填寫相關信息......",soyinum,bitnum,mlnum);
f=flength%16;
if(f==0)len=flength/16;
else
len=flength/16+1;
flag=1;
 printf("\n將位視圖內容從%d處修改%d個，標志：%d",bitnum,len,flag);
chgbit(bitnum,len,flag);/*將位視圖內容flag從from處修改*/
/*writebit();*/
printf("寫入模擬目錄表...");
chgmulu(fname,soyinum,mlnum);/*修改目錄文件*/
/*writeml(fpml);*/
clrchgsy();/*清空索引*/
/*修改目錄文件,filenum為文件在目錄表中的絕對位置號*/
/*soyinum=sechsuoyin();*/ /*空閑節(jié)點的編號*/
printf("\n空閑節(jié)點的編號 %d",soyinum);
/* searchphi();*/ /*查找該文件，物理地址,返回物理地址所存放數組首地址*/
 fileinfo(flength,soyinum,'a');/*確定邏輯地址*/
 printf("\n修改索引節(jié)點%d信息...",soyinum);
chgsuoyin(soyinum);/*修改索引節(jié)點n信息*******/
/*savesuoyin();*/
printf("\n寫入鏡像文件(從%d)...\n",bitnum*16);/*位示圖中一塊在鏡像文件中為１６字節(jié)*/
/*writemirror(bitnum*16,flength,wcont);*/
writemirror(bitnum*16,flength,1);/*>>>>>>>>>>>>>>>>>>>>>>>>>>>>>*/
clrchgsy();/*清空索引*/
printf("\n恭喜！操作成功！！！SUCCESS!!");
}
else printf("\n鑒于以上原因不能完成請求！");
}
do{        /*嘗試進行另外一個分配*/
   printf("\n Continue To Test To Creat Another File??(Y/N)");
   scanf("%c",&next);
   }while(!(next=='n'||next=='N'||next=='Y'||next=='y'));
   if(next=='y'||next=='Y')
  {
   goto rein;
  }
}
/*$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$*/
earse()/*刪除文件>>>回收文件占用的空間，修改模擬空閑盤塊表文件；*/
        /*回收索引節(jié)點空間，修改模擬空閑索引節(jié)點表文件,修改模擬目錄表文件*/
{
char fname[11],next;
int nml,nsy,flength,i,j,soyinum;
int f,len;
rein:printf("\nearse()輸入文件名：");/*輸入文件名*/
scanf("%s",fname);
printf("\n %s",fname);
if(strlen(fname)>11){
      printf("文件名 %s 太長(<=11個字符)",fname);
                     goto rein;
                   }
nml=searchfile(fname);/******獲取文件編號*********/
/* flength=getfilelen(fname);*//******獲取文件名，取得長度*********/
if(nml==ERROR){
     do{        /*嘗試進行另外一個文件*/
          printf("\nnml ERROR!!! Want To Continue???(Y/N)");
           scanf("%c",&next);
          }while(!(next=='n'||next=='N'||next=='Y'||next=='y'));