8821860f11For the initial iteration, only the default resolver can be serialized/deserialized. If `dns.setServers()` has been called, we'll preserve the configured DNS servers in the snapshot. We can consider exposing the serialization method if it becomes necessary for user-land snapshots. PR-URL: https://github.com/nodejs/node/pull/44633 Reviewed-By: Matteo Collina <matteo.collina@gmail.com> Reviewed-By: Antoine du Hamel <duhamelantoine1995@gmail.com>
39 lines
860 B
JavaScript
39 lines
860 B
JavaScript
'use strict';
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const dns = require('dns');
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const assert = require('assert');
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assert(process.env.NODE_TEST_HOST);
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const {
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setDeserializeMainFunction,
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} = require('v8').startupSnapshot;
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function onError(err) {
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console.error('error:', err);
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}
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function onLookup(address, family) {
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console.log(`address: ${JSON.stringify(address)}`);
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console.log(`family: ${JSON.stringify(family)}`);
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}
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function query() {
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const host = process.env.NODE_TEST_HOST;
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if (process.env.NODE_TEST_PROMISE === 'true') {
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dns.promises.lookup(host, { family: 4 }).then(
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({address, family}) => onLookup(address, family),
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onError);
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} else {
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dns.lookup(host, { family: 4 }, (err, address, family) => {
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if (err) {
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onError(err);
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} else {
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onLookup(address, family);
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}
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});
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}
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}
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query();
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setDeserializeMainFunction(query);
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