code: public void unmarshalling(Xdr xdr) {
          _loaded = true;
          _type = NfsType.fromValue((int) xdr.getUnsignedInt());
          _mode = xdr.getUnsignedInt();
          _nlink = xdr.getUnsignedInt();
          _uid = xdr.getUnsignedInt();
          _gid = xdr.getUnsignedInt();
          _size = xdr.getLong();
          _used = xdr.getLong();
          _rdev[0] = xdr.getUnsignedInt();
          _rdev[1] = xdr.getUnsignedInt();
          _fsid = xdr.getLong();
          _fileid = xdr.getLong();
          _atime = new NfsTime();
          _mtime = new NfsTime();
          _ctime = new NfsTime();
          _atime.unmarshalling(xdr);
          _mtime.unmarshalling(xdr);
          _ctime.unmarshalling(xdr);
      }
docs: Reads the Xdr response, as specified by RFC 1813
  (https://tools.ietf.org/html/rfc1813).
  
  @param xdr