'use strict'; const common = require('../common'); const dgram = require('dgram'); const cluster = require('cluster'); if (cluster.isPrimary) { cluster.fork(); } else { // When the socket attempts to bind, it requests a handle from the cluster. // Force the cluster to send back an error code. const socket = dgram.createSocket('udp4'); cluster._getServer = function(self, options, callback) { socket.close(() => { cluster.worker.disconnect(); }); callback(-1); }; socket.on('error', common.mustNotCall()); socket.bind(); }