create_listeners

# File lib/webrick/utils.rb, line 61
    def create_listeners(address, port)
      unless port
        raise ArgumentError, "must specify port"
      end
      sockets = Socket.tcp_server_sockets(address, port)
      sockets = sockets.map {|s|
        s.autoclose = false
        ts = TCPServer.for_fd(s.fileno)
        s.close
        ts
      }
      return sockets
    end