mirror of https://github.com/tc39/test262.git
64 lines
1.7 KiB
JavaScript
64 lines
1.7 KiB
JavaScript
// Copyright (C) 2018 Amal Hussein. 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.wake
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description: >
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An undefined index arg should translate to 0
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info: |
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Atomics.wake( typedArray, index, count )
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2.Let i be ? ValidateAtomicAccess(typedArray, index).
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...
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2.Let accessIndex be ? ToIndex(requestIndex).
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9.If IsSharedArrayBuffer(buffer) is false, throw a TypeError exception.
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...
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3.If bufferData is a Data Block, return false
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If value is undefined, then
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Let index be 0.
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includes: [atomicsHelper.js]
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features: [Atomics, SharedArrayBuffer, TypedArray]
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---*/
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$262.agent.start(`
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$262.agent.receiveBroadcast(function(sab) {
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const i32a = new Int32Array(sab);
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$262.agent.report(Atomics.wait(i32a, 0, 0, 200));
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$262.agent.leaving();
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});
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`);
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$262.agent.start(`
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$262.agent.receiveBroadcast(function(sab) {
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const i32a = new Int32Array(sab);
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$262.agent.report(Atomics.wait(i32a, 0, 0, 200));
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$262.agent.leaving();
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});
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`);
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const i32a = new Int32Array(
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new SharedArrayBuffer(Int32Array.BYTES_PER_ELEMENT * 4)
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);
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$262.agent.broadcast(i32a.buffer);
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$262.agent.sleep(100); // halfway through timeout
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// wake at index 0, undefined => 0
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assert.sameValue(
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Atomics.wake(i32a, undefined, 1),
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1,
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'Atomics.wake(i32a, undefined, 1) returns 1'
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);
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assert.sameValue(getReport(), 'ok', 'getReport() returns "ok"');
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// wake again at index 0, default => 0
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assert.sameValue(
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Atomics.wake(i32a /*, default values used */),
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1,
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'Atomics.wake(i32a /*, default values used */) returns 1'
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);
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assert.sameValue(getReport(), 'ok', 'getReport() returns "ok"');
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