# File lib/mongrel.rb, line 809
    def listener(options={},&blk)
      raise "Cannot call listener inside another listener block." if (@listener or @listener_name)
      ops = resolve_defaults(options)
      ops[:num_processors] ||= 950
      ops[:timeout] ||= 0

      @listener = Mongrel::HttpServer.new(ops[:host], ops[:port].to_i, ops[:num_processors].to_i, ops[:timeout].to_i)
      @listener_name = "#{ops[:host]}:#{ops[:port]}"
      @listeners[@listener_name] = @listener

      # Does the actual cloaking operation to give the new implicit self.
      if blk
        cloaker(&blk).bind(self).call
      end

      # all done processing this listener setup, reset implicit variables
      @listener = nil
      @listener_name = nil
    end