# File lib/rbot/ircbot.rb, line 1262
  def ping_server
    act_timeout = @config['server.ping_timeout']
    return if act_timeout <= 0
    now = Time.now
    if @last_rec && now > @last_rec + act_timeout
      if @last_ping.nil?
        # No previous PING pending, send a new one
        sendq "PING :rbot"
        @last_ping = Time.now
      else
        diff = now - @last_ping
        if diff > act_timeout
          debug "no PONG from server in #{diff} seconds, reconnecting"
          # the actual reconnect is handled in the main loop:
          raise TimeoutError, "no PONG from server in #{diff} seconds"
        end
      end
    end
  end