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// |reftest| skip async -- Atomics.waitAsync is not supported
// 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: >
Returns "not-equal" when value arg does not match an index in the typedArray
info: |
Atomics.waitAsync( typedArray, index, value, timeout )
1. Return DoWait(async, typedArray, index, value, timeout).
DoWait ( mode, typedArray, index, value, timeout )
16. Let w be ! AtomicLoad(typedArray, i).
17. If v is not equal to w, then
a. Perform LeaveCriticalSection(WL).
b. If mode is sync, then
i. Return the String "not-equal".
c. Perform ! Call(capability.[[Resolve]], undefined, « "not-equal" »).
d. Return promiseCapability.[[Promise]].
flags: [async]
includes: [atomicsHelper.js]
features: [Atomics.waitAsync, SharedArrayBuffer, TypedArray, Atomics, arrow-function, async-functions]
---*/
assert.sameValue(typeof Atomics.waitAsync, 'function', 'The value of `typeof Atomics.waitAsync` is "function"');
const RUNNING = 1;
const value = 42;
$262.agent.start(`
$262.agent.receiveBroadcast(function(sab) {
const i32a = new Int32Array(sab);
Atomics.add(i32a, ${RUNNING}, 1);
$262.agent.report(Atomics.store(i32a, 0, ${value}));
$262.agent.report(Atomics.waitAsync(i32a, 0, 0).value);
$262.agent.leaving();
});
`);
const i32a = new Int32Array(
new SharedArrayBuffer(Int32Array.BYTES_PER_ELEMENT * 4)
);
$262.agent.safeBroadcastAsync(i32a, RUNNING, 1).then(async (agentCount) => {
assert.sameValue(agentCount, 1, 'The value of `agentCount` is 1');
assert.sameValue(
await $262.agent.getReportAsync(),
'42',
'(await $262.agent.getReportAsync()) resolves to the value "42"'
);
assert.sameValue(
await $262.agent.getReportAsync(),
'not-equal',
'(await $262.agent.getReportAsync()) resolves to the value "not-equal"'
);
assert.sameValue(
Atomics.notify(i32a, 0, 1),
0,
'Atomics.notify(new Int32Array(new SharedArrayBuffer(Int32Array.BYTES_PER_ELEMENT * 4)), 0, 1) must return 0'
);
}).then($DONE, $DONE);
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