'drop' 事件

当连接数达到 server.maxConnections 的阈值时，服务器将丢弃新的连接并触发 'drop' 事件。 如果是 TCP 服务器，参数如下，否则参数为 undefined。

• data <Object> 传给事件监听器的参数。
  • localAddress <string> 本地地址。
  • localPort <number> 本地端口。
  • remoteAddress <string> 远程地址。
  • remotePort <number> 远程端口。
  • remoteFamily <string> 远程 IP 系列。 'IPv4' 或 'IPv6'。

When the number of connections reaches the threshold of server.maxConnections, the server will drop new connections and emit 'drop' event instead. If it is a TCP server, the argument is as follows, otherwise the argument is undefined.

• data <Object> The argument passed to event listener.
  • localAddress <string> Local address.
  • localPort <number> Local port.
  • remoteAddress <string> Remote address.
  • remotePort <number> Remote port.
  • remoteFamily <string> Remote IP family. 'IPv4' or 'IPv6'.