96c5916dd4
Original design doc: https://docs.google.com/document/d/1dthXsVHMc1Sd_oYf9a-KZSFOd_a8dUgnt4REAG8YIXA Design changes: https://docs.google.com/document/d/1aeEGDm1XSqoJkQQKz9F75WqnuAa2caktxGy_O_KpO9Y Reland: - rewrote timing dependent tests to be more robust - removed 1 flaky test - disabled tests for DelayedTasksPlatform Original: https://chromium-review.googlesource.com/c/v8/v8/+/2202981 TBR=ishell@chromium.org, ulan@chromium.org Bug: v8:10239 Change-Id: I2a042e419462f4c9f54ec549bfe16ec6684560b7 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/2307211 Commit-Queue: Marja Hölttä <marja@chromium.org> Reviewed-by: Andreas Haas <ahaas@chromium.org> Reviewed-by: Shu-yu Guo <syg@chromium.org> Cr-Commit-Position: refs/heads/master@{#68954}
56 lines
1.9 KiB
JavaScript
56 lines
1.9 KiB
JavaScript
// Copyright 2020 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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// Flags: --allow-natives-syntax --harmony-sharedarraybuffer --harmony-atomics-waitasync
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(function test() {
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const sab = new SharedArrayBuffer(16);
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const i32a = new Int32Array(sab);
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// Create 2 async waiters.
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const result1 = Atomics.waitAsync(i32a, 0, 0);
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const result2 = Atomics.waitAsync(i32a, 0, 0);
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assertEquals(true, result1.async);
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assertEquals(true, result2.async);
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assertEquals(2, %AtomicsNumWaitersForTesting(i32a, 0));
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assertEquals(0, %AtomicsNumUnresolvedAsyncPromisesForTesting(i32a, 0));
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let log = [];
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result1.value.then(
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(value) => { assertEquals("ok", value); log.push(1); },
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() => { assertUnreachable(); });
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result2.value.then(
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(value) => { assertEquals("ok", value); log.push(2); },
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() => { assertUnreachable(); });
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// Wake up one waiter.
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const notify_return_value = Atomics.notify(i32a, 0, 1);
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assertEquals(1, notify_return_value);
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assertEquals(1, %AtomicsNumWaitersForTesting(i32a, 0));
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assertEquals(1, %AtomicsNumUnresolvedAsyncPromisesForTesting(i32a, 0));
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function continuation1() {
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assertEquals(1, %AtomicsNumWaitersForTesting(i32a, 0));
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assertEquals(0, %AtomicsNumUnresolvedAsyncPromisesForTesting(i32a, 0));
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assertEquals([1], log);
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// Wake up one waiter.
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const notify_return_value = Atomics.notify(i32a, 0, 1);
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assertEquals(1, notify_return_value);
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assertEquals(0, %AtomicsNumWaitersForTesting(i32a, 0));
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assertEquals(1, %AtomicsNumUnresolvedAsyncPromisesForTesting(i32a, 0));
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setTimeout(continuation2, 0);
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}
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function continuation2() {
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assertEquals(0, %AtomicsNumWaitersForTesting(i32a, 0));
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assertEquals(0, %AtomicsNumUnresolvedAsyncPromisesForTesting(i32a, 0));
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assertEquals([1, 2], log);
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}
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setTimeout(continuation1, 0);
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})();
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