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'use strict'; const common = require('../common'); const dgram = require('dgram'); // Regression test for https://github.com/nodejs/node/issues/30209 // No warning should be emitted when re-trying `.bind()` on UDP sockets // repeatedly. process.on('warning', common.mustNotCall()); const reservePortSocket = dgram.createSocket('udp4'); reservePortSocket.bind(() => { const { port } = reservePortSocket.address(); const newSocket = dgram.createSocket('udp4'); let errors = 0; newSocket.on('error', common.mustCall(() => { if (++errors < 20) { newSocket.bind(port, common.mustNotCall()); } else { newSocket.close(); reservePortSocket.close(); } }, 20)); newSocket.bind(port, common.mustNotCall()); });