mirror of https://github.com/tc39/test262.git
64 lines
1.7 KiB
JavaScript
64 lines
1.7 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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Get the correct WaiterList
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info: |
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Atomics.wait( typedArray, index, value, timeout )
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...
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11. Let WL be GetWaiterList(block, indexedPosition).
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...
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GetWaiterList( block, i )
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...
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4. Return the WaiterList that is referenced by the pair (block, i).
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includes: [atomicsHelper.js]
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features: [Atomics, SharedArrayBuffer, TypedArray]
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---*/
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$262.agent.start(`
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$262.agent.receiveBroadcast(function(sab) {
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const i32a = new Int32Array(sab);
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// Wait on index 0
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$262.agent.report(Atomics.wait(i32a, 0, 0, Infinity));
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$262.agent.leaving();
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});
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`);
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$262.agent.start(`
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$262.agent.receiveBroadcast(function(sab) {
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const i32a = new Int32Array(sab);
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// Wait on index 2
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$262.agent.report(Atomics.wait(i32a, 2, 0, Infinity));
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$262.agent.leaving();
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});
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`);
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const i32a = new Int32Array(
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new SharedArrayBuffer(Int32Array.BYTES_PER_ELEMENT * 4)
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);
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$262.agent.broadcast(i32a.buffer);
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$262.agent.sleep(10);
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// Wake index 1, wakes nothing
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assert.sameValue(Atomics.wake(i32a, 1), 0, 'Atomics.wake(i32a, 1) returns 0');
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// Wake index 3, wakes nothing
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assert.sameValue(Atomics.wake(i32a, 3), 0, 'Atomics.wake(i32a, 3) returns 0');
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// Wake index 2, wakes 1
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assert.sameValue(Atomics.wake(i32a, 2), 1, 'Atomics.wake(i32a, 2) returns 1');
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assert.sameValue($262.agent.getReport(), 'ok', '$262.agent.getReport() returns "ok"');
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// Wake index 0, wakes 1
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assert.sameValue(Atomics.wake(i32a, 0), 1, 'Atomics.wake(i32a, 0) returns 1');
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assert.sameValue($262.agent.getReport(), 'ok', '$262.agent.getReport() returns "ok"');
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