# File lib/net/ssh/connection/session.rb, line 223
    def postprocess(readers, writers)
      Array(readers).each do |reader|
        if listeners[reader]
          listeners[reader].call(reader)
        else
          if reader.fill.zero?
            reader.close
            stop_listening_to(reader)
          end
        end
      end

      Array(writers).each do |writer|
        writer.send_pending
      end

      transport.rekey_as_needed

      return true
    end