httpServer setTimeout & timeout event

http.js

const http = require('http')
const port = 3000;

const server = http.createServer((req, res) => {
    res.writeHead(200);
    res.write('OK');
    res.end();
  });

  //  如果超时3秒，就触发 timeout event
  server.setTimeout(3000, () => {
      console.log('socket destroyed due to timeout')

    console.log(Date.now())
  })
  server.on('timeout', (socket) => {
      
    // 手动关掉该socket
    socket.end()
    console.log('fire timeout..')

    console.log(Date.now())
  });

  server.listen(port, (err) => {
      if (err) {
          return console.log('en error', err)
      }

      console.log(`server running on ${port}`)
  })

req.js

const net = require('net');
const socket = net.connect({port: 3000});
// 发送不完整的 http 请求
socket.write('POST / HTTP/1.1\r\ncontent-length:1\r\n');
console.log(Date.now())
const start = Date.now();
socket.on('end', () => {
    console.log(Date.now() - start)
})