class DEBUGGER__::Session

def thread_list
  thcs, unmanaged_ths = update_thread_list
  thcs.each_with_index{|thc, i|
    @ui.puts "#{@tc == thc ? "--> " : "    "}\##{i} #{thc}"
  }
  if !unmanaged_ths.empty?
    @ui.puts "The following threads are not managed yet by the debugger:"
    unmanaged_ths.each{|th|
      @ui.puts "     " + th.to_s
    }
  end
end