mirror of https://github.com/tc39/test262.git
55 lines
1.2 KiB
JavaScript
55 lines
1.2 KiB
JavaScript
// Copyright (C) 2018 Rick Waldron. All rights reserved.
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// This code is governed by the BSD license found in the LICENSE file.
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/*---
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esid: sec-atomics.wake
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description: >
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Test that Atomics.wake on awoken waiter is a noop.
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features: [Atomics, SharedArrayBuffer, TypedArray]
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---*/
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function getReport() {
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var r;
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while ((r = $262.agent.getReport()) == null) {
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$262.agent.sleep(10);
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}
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return r;
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}
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function waitUntil(ia, k, value) {
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var i = 0;
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while (Atomics.load(ia, k) !== value && i < 15) {
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$262.agent.sleep(10);
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i++;
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}
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assert.sameValue(Atomics.load(ia, k), value, "All agents are running");
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}
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$262.agent.start(
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`
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$262.agent.receiveBroadcast(function(sab) {
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var ia = new Int32Array(sab);
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Atomics.add(ia, 1, 1);
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$262.agent.report(Atomics.wait(ia, 0, 0, 2000));
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$262.agent.leaving();
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})
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`);
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var ia = new Int32Array(new SharedArrayBuffer(2 * Int32Array.BYTES_PER_ELEMENT));
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$262.agent.broadcast(ia.buffer);
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waitUntil(ia, 1, 1);
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assert.sameValue(Atomics.wake(ia, 0, 1), 1);
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$262.agent.sleep(10);
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// Collect and check results
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var report = getReport();
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assert.sameValue(report, "ok");
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// Already awake, this should be a noop
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assert.sameValue(Atomics.wake(ia, 0, 1), 0);
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