18 lines
686 B
JavaScript
18 lines
686 B
JavaScript
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// Copyright 2021 the V8 project authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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// Try to catch TSAN issues with access to SharedArrayBuffer.
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function onmessage([buf]) {
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const arr = new Int32Array(buf);
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for (let val = 1; val < 100; ++val) arr.fill(val);
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}
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const arr = new Int32Array(new SharedArrayBuffer(4));
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const worker = new Worker(`onmessage = ${onmessage}`, {type: 'string'});
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worker.postMessage([arr.buffer]);
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// Wait until the worker starts filling the array.
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while (Atomics.load(arr) == 0) { }
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// Try setting a value on the shared array buffer that races with the fill.
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arr.set(arr);
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