code: public void openRead(ReadStreamOld rs)
      throws IOException
    {
      closeWrite();
  
      TempReadStream tempReadStream = new TempReadStream(_head);
      //tempReadStream.setPath(getPath());
      tempReadStream.setFreeWhenDone(true);
      
      _head = null;
      _tail = null;
      
      rs.init(tempReadStream);
    }
docs: Opens a read stream to the buffer.