/// <summary>
/// Rename dir/file
/// </summary>
private bool __rename(string newName)
{
if ((newName = checkInvalidChars(newName)) == null)
{
SqlFsErrCode.CurrentError = FsErr.InvalidChars;
return(false);
}
if (this.ID.Equals(SqlFsConst.ROOTDIRID)) // can't rename root
{
SqlFsErrCode.CurrentError = FsErr.CannotRenameRoot;
return(false);
}
SqlDir parentDir = this.Parent;
if (parentDir == null)
{
SqlFsErrCode.CurrentError = FsErr.NoParent;
return(false);
}
if (parentDir.isAlreadyExist(newName)) // already exists or not ?
{
SqlFsErrCode.CurrentError = FsErr.NameAlreadyExists;
return(false);
}
setField(SqlFs.FSBLOCK.fsName, newName);
return(true);
}
/// <summary>
/// Move itself to a destination dir
/// </summary>
private bool __move(SqlDir destDir)
{
do
{
if (this.ID.Equals(SqlFsConst.ROOTDIRID)) // can't move root
{
SqlFsErrCode.CurrentError = FsErr.CannotMoveRoot;
break;
}
if (this.ID.Equals(destDir.ID)) // can't move to itself
{
SqlFsErrCode.CurrentError = FsErr.CannotMoveToSelf;
break;
}
if (this.Dir && destDir.isAncestor((SqlDir)this)) // if it is a DIR, can't move to its subdir
{
SqlFsErrCode.CurrentError = FsErr.CannotMoveToSubdir;
break;
}
if (destDir.isAlreadyExist(this.Name)) // can't move if there is one with the same name
{
SqlFsErrCode.CurrentError = FsErr.NameAlreadyExists;
break;
}
// unlink itself from parent
SqlDir parent = this.Parent;
if (parent == null)
{
SqlFsErrCode.CurrentError = FsErr.NoParent;
break;
}
if (!parent.updateChildList(SqlFsConst.FSOP.DEL, this.ID, FsID.toFsID(0)))
{
break;
}
// update parent ID
if (!setField(SqlFs.FSBLOCK.fsParent, destDir.ID))
{
break;
}
// add itself to dest dir
if (!destDir.updateChildList(SqlFsConst.FSOP.ADD, this.ID, FsID.toFsID(0)))
{
break;
}
return(true);
} while (false);
return(false);
}
