9d7cd9b864PR-URL: https://github.com/nodejs/node/pull/54077 Reviewed-By: Jiawen Geng <technicalcute@gmail.com> Reviewed-By: Richard Lau <rlau@redhat.com> Reviewed-By: Joyee Cheung <joyeec9h3@gmail.com> Reviewed-By: Marco Ippolito <marcoippolito54@gmail.com>
43 lines
1.1 KiB
JavaScript
43 lines
1.1 KiB
JavaScript
// Copyright 2022 the V8 project authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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//
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// Flags: --harmony-struct --allow-natives-syntax
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"use strict";
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if (this.Worker) {
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(function TestWait() {
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let workerScript =
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`onmessage = function({data:msg}) {
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let mutex = msg.mutex;
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let cv = msg.cv;
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let res = Atomics.Mutex.lock(mutex, function() {
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return Atomics.Condition.wait(cv, mutex);
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});
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postMessage(res);
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};`;
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let mutex = new Atomics.Mutex;
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let cv = new Atomics.Condition;
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let msg = {mutex, cv};
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let worker1 = new Worker(workerScript, { type: 'string' });
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let worker2 = new Worker(workerScript, { type: 'string' });
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worker1.postMessage(msg);
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worker2.postMessage(msg);
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// Spin until both workers are waiting.
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while (%AtomicsSynchronizationPrimitiveNumWaitersForTesting(cv) != 2) {}
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assertEquals(2, Atomics.Condition.notify(cv, 2));
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assertEquals(true, worker1.getMessage());
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assertEquals(true, worker2.getMessage());
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worker1.terminate();
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worker2.terminate();
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})();
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}
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