mirror of https://github.com/tc39/test262.git
91 lines
2.0 KiB
JavaScript
91 lines
2.0 KiB
JavaScript
// Copyright (C) 2018 Amal Hussein. 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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New waiters should be applied to the end of the list and woken by order they entered the list (FIFO)
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info: |
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Atomics.wait( typedArray, index, value, timeout )
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16.Perform AddWaiter(WL, W).
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...
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3.Add W to the end of the list of waiters in WL.
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features: [Atomics, 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(100);
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}
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return r;
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}
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var agent1 = '1';
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var agent2 = '2';
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var agent3 = '3';
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$262.agent.start(
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`
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$262.agent.receiveBroadcast(function (sab) {
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var int32Array = new Int32Array(sab);
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$262.agent.report(${agent1});
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Atomics.wait(int32Array, 0, 0);
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$262.agent.report(${agent1});
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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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`
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$262.agent.receiveBroadcast(function (sab) {
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var int32Array = new Int32Array(sab);
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$262.agent.report(${agent2});
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Atomics.wait(int32Array, 0, 0);
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$262.agent.report(${agent2});
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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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`
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$262.agent.receiveBroadcast(function (sab) {
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var int32Array = new Int32Array(sab);
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$262.agent.report(${agent3});
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Atomics.wait(int32Array, 0, 0);
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$262.agent.report(${agent3});
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$262.agent.leaving();
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})
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`);
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var int32Array = new Int32Array(new SharedArrayBuffer(4));
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$262.agent.broadcast(int32Array.buffer);
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var orderWhichAgentsWereStarted = getReport() + getReport() + getReport(); // can be started in any order
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assert.sameValue(Atomics.wake(int32Array, 0, 1), 1);
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var orderAgentsWereWoken = getReport();
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assert.sameValue(Atomics.wake(int32Array, 0, 1), 1);
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orderAgentsWereWoken += getReport();
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assert.sameValue(Atomics.wake(int32Array, 0, 1), 1);
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orderAgentsWereWoken += getReport();
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assert.sameValue(orderWhichAgentsWereStarted, orderAgentsWereWoken); // agents should wake in the same order as they were started FIFO
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