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// |reftest| skip-if(!this.hasOwnProperty('Atomics')||!this.hasOwnProperty('SharedArrayBuffer')||(this.hasOwnProperty('getBuildConfiguration')&&getBuildConfiguration('arm64-simulator'))) -- Atomics,SharedArrayBuffer is not enabled unconditionally, ARM64 Simulator cannot emulate atomics
// Copyright (C) 2018 Amal Hussein. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-atomics.wait
description: >
Returns "not-equal" when value arg does not match an index in the typedArray
info: |
Atomics.wait( typedArray, index, value, timeout )
3.Let v be ? ToBigInt64(value).
...
14.If v is not equal to w, then
a.Perform LeaveCriticalSection(WL).
b. Return the String "not-equal".
includes: [atomicsHelper.js]
features: [Atomics, BigInt, SharedArrayBuffer, TypedArray]
---*/
const RUNNING = 1;
const value = "42n";
const i64a = new BigInt64Array(
new SharedArrayBuffer(BigInt64Array.BYTES_PER_ELEMENT * 4)
);
$262.agent.start(`
$262.agent.receiveBroadcast(function(sab) {
const i64a = new BigInt64Array(sab);
Atomics.add(i64a, ${RUNNING}, 1n);
$262.agent.report(Atomics.store(i64a, 0, ${value}));
$262.agent.report(Atomics.wait(i64a, 0, 0n));
$262.agent.leaving();
});
`);
// NB: We don't actually explicitly need to wait for the agent to start in this
// test case, we only do it for consistency with other test cases which do
// require the main agent to wait and yield control.
$262.agent.safeBroadcast(i64a);
$262.agent.waitUntil(i64a, RUNNING, 1n);
// Try to yield control to ensure the agent actually started to wait.
$262.agent.tryYield();
assert.sameValue(
$262.agent.getReport(),
'42',
'$262.agent.getReport() returns "42"'
);
assert.sameValue(
$262.agent.getReport(),
'not-equal',
'$262.agent.getReport() returns "not-equal"'
);
reportCompare(0, 0);
|
