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37 lines
1.1 KiB
JavaScript
37 lines
1.1 KiB
JavaScript
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// deno-fmt-ignore-file
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// deno-lint-ignore-file
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// Copyright Joyent and Node contributors. All rights reserved. MIT license.
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// Taken from Node 18.12.1
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// This file is automatically generated by `tests/node_compat/runner/setup.ts`. Do not modify this file manually.
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'use strict';
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const common = require('../common');
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const assert = require('assert');
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const { MessageChannel } = require('worker_threads');
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// Make sure that an infinite asynchronous .on('message')/postMessage loop
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// does not lead to a stack overflow and does not starve the event loop.
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// We schedule timeouts both from before the .on('message') handler and
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// inside of it, which both should run.
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const { port1, port2 } = new MessageChannel();
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let count = 0;
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port1.on('message', () => {
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if (count === 0) {
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setTimeout(common.mustCall(() => {
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port1.close();
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}), 0);
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}
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port2.postMessage(0);
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assert(count++ < 10000, `hit ${count} loop iterations`);
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});
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port2.postMessage(0);
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// This is part of the test -- the event loop should be available and not stall
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// out due to the recursive .postMessage() calls.
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setTimeout(common.mustCall(), 0);
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