public static void FS_Start()
{
SuperBlock sb;
ushort[] listCl;
List <myFile> listFiles;
curDir = 0;
// int countOfFiles = CLUST_SIZE * (FILES_FIRST_CLUST - ROOT_FIRST_CLUST + 1) / FILE_STRUCT_SIZE; // 487 files can be created
if (!File.Exists("MyFS.dat"))
{
sb = new SuperBlock("MyFS", CLUST_SIZE, FAT_FIRST_CLUST, ROOT_FIRST_CLUST, FILES_FIRST_CLUST, FILES_CLUST_COUNT);
// listCl = new ushort[CLUST_SIZE * (FILES_CLUST_COUNT - FILES_FIRST_CLUST + 1) / (CLUST_SIZE + FILE_STRUCT_SIZE)];
// listCl = new ushort[FILES_CLUST_COUNT - FILES_FIRST_CLUST+1];
listCl = new ushort[FILES_CLUST_COUNT];
listFiles = new List <myFile>();
}
else
{
BinaryReader br = new BinaryReader(File.Open("MyFS.dat", FileMode.Open), Encoding.UTF8);
sb = new SuperBlock(br.ReadString(), br.ReadUInt16(), br.ReadUInt16(), br.ReadUInt16(), br.ReadUInt16(), br.ReadUInt16());
// listCl = new ushort[CLUST_SIZE * (FILES_CLUST_COUNT - FILES_FIRST_CLUST + 1) / (CLUST_SIZE + FILE_STRUCT_SIZE)];
listCl = new ushort[FILES_CLUST_COUNT - FILES_FIRST_CLUST + 1];
br.BaseStream.Seek((FAT_FIRST_CLUST - 1) * CLUST_SIZE, SeekOrigin.Begin);
int iCl = 0; // number of cluster
while (iCl < listCl.Length && br.BaseStream.Position < (ROOT_FIRST_CLUST - 1) * CLUST_SIZE)
{ //br.PeekChar() != -1 &&
listCl[iCl] = br.ReadUInt16(); // value for cluster iCl
iCl++;
}
listFiles = new List <myFile>();
br.BaseStream.Seek((ROOT_FIRST_CLUST - 1) * CLUST_SIZE, SeekOrigin.Begin);
int iFile = 0; // number of file
while (br.PeekChar() != -1 && ((FILES_FIRST_CLUST - 1) * CLUST_SIZE) >= br.BaseStream.Position + FILE_STRUCT_SIZE)
{
myFile temp = new myFile();
listFiles.Add(temp);
listFiles[iFile].id = br.ReadInt32();
if (listFiles[iFile].id == -1)
{
listFiles.Remove(temp);
break;
}
listFiles[iFile].Name = br.ReadString();
/* if (listFiles[iFile].Name == "")
* {
* listFiles.Remove(temp);
* break;
* } */
listFiles[iFile].Extend = br.ReadString();
listFiles[iFile].Date_time = br.ReadString();
listFiles[iFile].First_clust = br.ReadUInt16();
listFiles[iFile].Size = br.ReadInt32();
listFiles[iFile].Rights = br.ReadString();
listFiles[iFile].Parent_dir = br.ReadInt32();
listFiles[iFile].Owner = br.ReadString(); // ...
iFile++;
}
br.Close();
}
MainProgram.fs = new FS(sb, listCl, listFiles);
if (MainProgram.fs.files.Count == 0)
{
createRootDir(); FS_Save();
}
}