()
| 4 | const options = { type: 'udp4', reusePort: true }; |
| 5 | |
| 6 | function checkSupportReusePort() { |
| 7 | return new Promise((resolve, reject) => { |
| 8 | const socket = dgram.createSocket(options); |
| 9 | socket.bind(0); |
| 10 | socket.on('listening', () => { |
| 11 | socket.close(resolve); |
| 12 | }); |
| 13 | socket.on('error', (err) => { |
| 14 | console.log('The `reusePort` option is not supported:', err.message); |
| 15 | socket.close(); |
| 16 | reject(err); |
| 17 | }); |
| 18 | }); |
| 19 | } |
| 20 | |
| 21 | module.exports = { |
| 22 | checkSupportReusePort, |