mirror of https://github.com/tc39/test262.git
49 lines
1.3 KiB
JavaScript
49 lines
1.3 KiB
JavaScript
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// 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.wait
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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.wait( typedArray, index, value, timeout )
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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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features: [ Atomics, SharedArrayBuffer, TypedArray ]
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---*/
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$262.agent.start(
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`
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$262.agent.receiveBroadcast(function (sab) {
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var int32Array = new Int32Array(sab);
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$262.agent.report(Atomics.wait(int32Array, undefined, 0, 10)); // undefined index => 0
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$262.agent.leaving();
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})
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`);
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var sab = new SharedArrayBuffer(1024);
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var int32Array = new Int32Array(sab);
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$262.agent.broadcast(int32Array.buffer);
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$262.agent.sleep(5);
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assert.sameValue(Atomics.wake(int32Array, 0), 1); // wake at index 0
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assert.sameValue(Atomics.wake(int32Array, 0), 0); // wake again at index 0, and 0 agents should be woken
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assert.sameValue(getReport(), "ok");
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function getReport() {
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var r;
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while ((r = $262.agent.getReport()) == null)
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$262.agent.sleep(100);
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return r;
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}
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