9d7cd9b864
PR-URL: https://github.com/nodejs/node/pull/54077 Reviewed-By: Jiawen Geng <technicalcute@gmail.com> Reviewed-By: Richard Lau <rlau@redhat.com> Reviewed-By: Joyee Cheung <joyeec9h3@gmail.com> Reviewed-By: Marco Ippolito <marcoippolito54@gmail.com>
18 lines
693 B
JavaScript
18 lines
693 B
JavaScript
// 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({data:[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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