class DEBUGGER__::Session

def reset_ui ui
  @ui.deactivate
  @ui = ui
  # activate new ui
  @tp_thread_begin.disable
  @tp_thread_end.disable
  @ui.activate self
  if @ui.respond_to?(:reader_thread) && thc = get_thread_client(@ui.reader_thread)
    thc.mark_as_management
  end
  @tp_thread_begin.enable
  @tp_thread_end.enable
end