// Copyright (C) 2020 Rick Waldron. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-atomics.waitasync
description: >
Atomics.waitAsync returns a result object containing a promise that resolves to "timed-out" and async is true.
info: |
Atomics.waitAsync( typedArray, index, value, timeout )
1. Return DoWait(async, typedArray, index, value, timeout).
DoWait ( mode, typedArray, index, value, timeout )
...
13. Let promiseCapability be undefined.
14. If mode is async, then
a. Set promiseCapability to ! NewPromiseCapability(%Promise%).
...
Perform ! CreateDataPropertyOrThrow(_resultObject_, *"async"*, *true*).
Perform ! CreateDataPropertyOrThrow(_resultObject_, *"value"*, _promiseCapability_.[[Promise]]).
Return _resultObject_.
flags: [async]
includes: [atomicsHelper.js]
features: [Atomics.waitAsync, TypedArray, SharedArrayBuffer, destructuring-binding, Atomics, arrow-function]
---*/
assert.sameValue(typeof Atomics.waitAsync, 'function', 'The value of `typeof Atomics.waitAsync` is "function"');
const i32a = new Int32Array(
new SharedArrayBuffer(Int32Array.BYTES_PER_ELEMENT * 8)
);
let {async, value} = Atomics.waitAsync(i32a, 0, 0, 1);
let outcome = null;
let lifespan = 1000;
let start = $262.agent.monotonicNow();
function wait() {
let elapsed = $262.agent.monotonicNow() - start;
if (elapsed > lifespan) {
$DONE("Test timed out");
return;
}
if (outcome === "timed-out") {
$DONE();
return;
}
$262.agent.setTimeout(wait, 0);
}
wait();
value.then(result => (outcome = result), $DONE);