# File lib/daemons/daemonize.rb, line 121
  def close_io
    # Make sure all input/output streams are closed
    # Part I: close all IO objects (except for $stdin/$stdout/$stderr)
    ObjectSpace.each_object(IO) do |io|
      unless [$stdin, $stdout, $stderr].include?(io)
        io.close rescue nil
      end
    end

    # Make sure all input/output streams are closed
    # Part II: close all file decriptors (except for $stdin/$stdout/$stderr)
    3.upto(8192) do |i|
      IO.for_fd(i).close rescue nil
    end
  end