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53 lines
1.9 KiB
JavaScript
53 lines
1.9 KiB
JavaScript
// Copyright (C) 2020 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.waitasync
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description: >
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Test that Atomics.waitAsync returns the right result when it was awoken before
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a timeout
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flags: [async]
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includes: [atomicsHelper.js]
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features: [Atomics.waitAsync, SharedArrayBuffer, TypedArray, Atomics, BigInt, arrow-function, async-functions]
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---*/
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assert.sameValue(typeof Atomics.waitAsync, 'function', 'The value of `typeof Atomics.waitAsync` is "function"');
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const RUNNING = 1;
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const TIMEOUT = $262.agent.timeouts.huge;
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const i64a = new BigInt64Array(new SharedArrayBuffer(BigInt64Array.BYTES_PER_ELEMENT * 4));
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$262.agent.start(`
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$262.agent.receiveBroadcast(async (sab) => {
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const i64a = new BigInt64Array(sab);
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Atomics.add(i64a, ${RUNNING}, 1n);
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const before = $262.agent.monotonicNow();
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const unpark = await Atomics.waitAsync(i64a, 0, 0n, ${TIMEOUT}).value;
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const duration = $262.agent.monotonicNow() - before;
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$262.agent.report(duration);
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$262.agent.report(unpark);
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$262.agent.leaving();
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});
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`);
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$262.agent.safeBroadcastAsync(i64a, RUNNING, 1n).then(async agentCount => {
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assert.sameValue(agentCount, 1n, 'The value of `agentCount` is 1n');
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assert.sameValue(
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Atomics.notify(i64a, 0),
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1,
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'Atomics.notify(new BigInt64Array(new SharedArrayBuffer(BigInt64Array.BYTES_PER_ELEMENT * 4)), 0) must return 1'
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);
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const lapse = await $262.agent.getReportAsync();
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assert(lapse < TIMEOUT, 'The result of evaluating `(lapse < TIMEOUT)` is true');
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const result = await $262.agent.getReportAsync();
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assert.sameValue(result, 'ok', 'The value of `result` is "ok"');
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assert.sameValue(result, 'ok', 'The value of `result` is "ok"');
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assert.sameValue(
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Atomics.notify(i64a, 0),
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0,
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'Atomics.notify(new BigInt64Array(new SharedArrayBuffer(BigInt64Array.BYTES_PER_ELEMENT * 4)), 0) must return 0'
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);
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}).then($DONE, $DONE);
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