// TODO: We should update the inode bitmap if necessary
public void DeleteNode(BobFsNode node)
{
if (!IsDirectory)
{
throw new InvalidOperationException("Current node is not a directory.");
}
int runner = 0;
DirEntry entry = new DirEntry();
while (runner < Size)
{
entry.ReadFrom(this, runner);
if (entry.Inum == node.Inum)
{
int read;
while ((read = ReadAll(runner + (8 + entry.Name.Length), _tmpBuffer, 0, BobFs.BlockSize)) != 0)
{
WriteAll(runner, _tmpBuffer, 0, read);
runner += read;
}
Size -= (uint)(8 + entry.Name.Length);
return;
}
runner += 8 + entry.Name.Length; // Point to next direntry's inum
}
throw new Exception("Node not found.");
}
public BobFsNode FindNode(string name)
{
if (!IsDirectory)
{
throw new InvalidOperationException("Current node is not a directory.");
}
int runner = 0;
DirEntry entry = new DirEntry();
while (runner < Size)
{
entry.ReadFrom(this, runner);
runner += 8 + entry.Name.Length; // Point to next inum
if (entry.Name == name)
{
return(new BobFsNode(_bobFs, entry.Inum));
}
}
return(null);
}