73d401b9d1
Details: https://docs.google.com/document/d/1-Gi37Ks7rXMVVRkC_HkwGxenP7T1huQUOMrYOtkUCFk/edit?usp=sharing Bug: v8:11340 Change-Id: Ia1d75270373a7ef2307e7ee0fd24da9ecfa27d18 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2643381 Reviewed-by: Michael Achenbach <machenbach@chromium.org> Reviewed-by: Camillo Bruni <cbruni@chromium.org> Reviewed-by: Andreas Haas <ahaas@chromium.org> Commit-Queue: Marja Hölttä <marja@chromium.org> Cr-Commit-Position: refs/heads/master@{#72315}
41 lines
1.3 KiB
JavaScript
41 lines
1.3 KiB
JavaScript
// Copyright 2020 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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// Flags: --allow-natives-syntax --harmony-sharedarraybuffer --harmony-atomics-waitasync
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(function test() {
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const sab = new SharedArrayBuffer(16);
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const i32a = new Int32Array(sab);
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const location = 0;
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(function createWorker() {
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function workerCode(location) {
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onmessage = function(msg) {
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if (msg.sab) {
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const i32a = new Int32Array(msg.sab);
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Atomics.waitAsync(i32a, location, 0);
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postMessage('worker waiting');
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}
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}
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}
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// Create 2 workers which wait on the same location.
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let workers = [];
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const worker_count = 2;
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for (let i = 0; i < worker_count; ++i) {
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workers[i] = new Worker(workerCode,
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{type: 'function', arguments: [location]});
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workers[i].postMessage({sab: sab});
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const m = workers[i].getMessage();
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assertEquals('worker waiting', m);
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}
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for (let i = 0; i < worker_count; ++i) {
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workers[i].terminateAndWait();
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}
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})();
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const notify_return_value = Atomics.notify(i32a, location, 2);
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// No waiters got notified, since they got cleaned up before it.
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assertEquals(0, notify_return_value);
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})();
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