mirror of https://github.com/tc39/test262.git
42 lines
1.2 KiB
JavaScript
42 lines
1.2 KiB
JavaScript
// Copyright (C) 2018 Rick Waldron. 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 timed out and that
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the time to time out is reasonable.
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info: |
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17. Let awoken be Suspend(WL, W, t).
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18. If awoken is true, then
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a. Assert: W is not on the list of waiters in WL.
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19. Else,
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a.Perform RemoveWaiter(WL, W).
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features: [Atomics, BigInt, SharedArrayBuffer, TypedArray]
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---*/
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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(10);
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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, id) {
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var ia = new BigInt64Array(sab);
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var then = $262.agent.monotonicNow();
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$262.agent.report(Atomics.wait(ia, 0, 0, 500)); // Timeout 500ms
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$262.agent.report($262.agent.monotonicNow() - then); // Actual time can be more than 500ms
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$262.agent.leaving();
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});
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`);
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var ia = new BigInt64Array(new SharedArrayBuffer(BigInt64Array.BYTES_PER_ELEMENT));
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$262.agent.broadcast(ia.buffer);
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assert.sameValue(getReport(), "timed-out");
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assert.sameValue((getReport() | 0) >= 500 - $ATOMICS_MAX_TIME_EPSILON, true);
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