v8/test/mjsunit/harmony/atomics-waitasync-1thread-2timeout.js

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// Copyright 2020 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// Flags: --harmony-sharedarraybuffer --harmony-atomics-waitasync
d8.file.execute("test/mjsunit/harmony/atomics-waitasync-helpers.js");
function workerCode() {
const sab = new SharedArrayBuffer(16);
const i32a = new Int32Array(sab);
onmessage = function() {
// Create a waiter with a long timeout.
const result_slow = Atomics.waitAsync(i32a, 0, 0, 200000);
// Create a waiter with a short timeout.
const result_fast = Atomics.waitAsync(i32a, 0, 0, 1);
result_slow.value.then(
(value) => { postMessage("slow " + value); },
() => { postMessage("unexpected"); });
result_fast.value.then(
(value) => {
postMessage("fast " + value);
// Wake up the waiter with the long time out.
const notify_return_value = Atomics.notify(i32a, 0, 1);
postMessage("notify return value " + notify_return_value);
},
() => { postMessage("unexpected"); });
};
}
const expected_messages = [
"fast timed-out",
"notify return value 1",
"slow ok"
];
runTestWithWorker(workerCode, expected_messages);