mirror of https://github.com/tc39/test262.git
56 lines
1.4 KiB
JavaScript
56 lines
1.4 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.wait
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description: >
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Test that Atomics.wait returns the right result when it was awoken before
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a timeout
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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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var sleeping = 100;
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var timeout = 20000;
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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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sleeping += 100;
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$262.agent.sleep(100);
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}
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return r;
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}
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$262.agent.start(`
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$262.agent.receiveBroadcast(function(sab) {
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var i32a = new Int32Array(sab);
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$262.agent.report(Atomics.wait(i32a, 0, 0, ${timeout}));
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$262.agent.leaving();
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});
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`);
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var sab = new SharedArrayBuffer(4);
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var i32a = new Int32Array(sab);
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$262.agent.broadcast(i32a.buffer);
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$262.agent.sleep(sleeping);
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assert.sameValue(Atomics.wake(i32a, 0), 1);
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assert.sameValue(getReport(), "ok");
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assert(sleeping < timeout, "this test assumes it won't last for more than 20 seconds");
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