test262/test/built-ins/Atomics/wake/wake-with-no-agents-waiting.js

37 lines
889 B
JavaScript

// Copyright (C) 2018 Rick Waldron. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-atomics.wake
description: >
Test that Atomics.wake wakes zero waiters if there are no agents waiting.
features: [Atomics, SharedArrayBuffer, TypedArray]
---*/
$262.agent.start(
`
$262.agent.receiveBroadcast(function (sab) {
var ia = new Int32Array(sab);
Atomics.add(ia, 1, 1);
$262.agent.leaving();
})
`);
var ia = new Int32Array(new SharedArrayBuffer(2 * Int32Array.BYTES_PER_ELEMENT));
$262.agent.broadcast(ia.buffer);
waitUntil(ia, 1);
// There are ZERO agents waiting to wake...
assert.sameValue(Atomics.wake(ia, 0, 1), 0);
function waitUntil(ia, k) {
var i = 0;
while (Atomics.load(ia, k) !== 1 && i < 15) {
$262.agent.sleep(100);
i++;
}
assert.sameValue(Atomics.load(ia, k), 1, "All agents are running");
}