test262/test/built-ins/Atomics/wait/waiterlist-order-of-operati...

91 lines
2.5 KiB
JavaScript
Raw Normal View History

2018-03-20 15:40:33 +01:00
// Copyright (C) 2018 Amal Hussein. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-atomics.wait
description: >
New waiters should be applied to the end of the list and woken by order they entered the list (FIFO)
info: |
Atomics.wait( typedArray, index, value, timeout )
16.Perform AddWaiter(WL, W).
...
3.Add W to the end of the list of waiters in WL.
includes: [atomicsHelper.js]
2018-04-19 16:11:50 +02:00
features: [Atomics, SharedArrayBuffer, TypedArray]
2018-03-20 15:40:33 +01:00
---*/
var agent1 = '1';
var agent2 = '2';
var agent3 = '3';
2018-03-20 15:40:33 +01:00
$262.agent.start(`
2018-05-19 02:52:31 +02:00
$262.agent.receiveBroadcast(function(sab) {
const i32a = new Int32Array(sab);
$262.agent.report(${agent1});
$262.agent.report(Atomics.wait(i32a, 1, 0));
2018-05-19 02:52:31 +02:00
$262.agent.report(${agent1});
$262.agent.leaving();
});
2018-03-20 15:40:33 +01:00
`);
$262.agent.start(`
2018-05-19 02:52:31 +02:00
$262.agent.receiveBroadcast(function(sab) {
const i32a = new Int32Array(sab);
$262.agent.report(${agent2});
$262.agent.report(Atomics.wait(i32a, 2, 0));
2018-05-19 02:52:31 +02:00
$262.agent.report(${agent2});
$262.agent.leaving();
});
2018-03-20 15:40:33 +01:00
`);
$262.agent.start(`
2018-05-19 02:52:31 +02:00
$262.agent.receiveBroadcast(function(sab) {
const i32a = new Int32Array(sab);
$262.agent.report(${agent3});
$262.agent.report(Atomics.wait(i32a, 3, 0));
2018-05-19 02:52:31 +02:00
$262.agent.report(${agent3});
$262.agent.leaving();
});
2018-03-20 15:40:33 +01:00
`);
const i32a = new Int32Array(
new SharedArrayBuffer(Int32Array.BYTES_PER_ELEMENT * 4)
);
2018-03-20 15:40:33 +01:00
$262.agent.broadcast(i32a.buffer);
2018-06-25 23:02:58 +02:00
$262.agent.sleep(100);
2018-03-20 15:40:33 +01:00
// Agents may be started in any order...
const started = [$262.agent.getReport(), $262.agent.getReport(), $262.agent.getReport()];
2018-03-20 15:40:33 +01:00
// Agents must wake in the order they waited
assert.sameValue(Atomics.wake(i32a, 1, 1), 1, 'Atomics.wake(i32a, 1, 1) returns 1');
assert.sameValue($262.agent.getReport(), 'ok', '$262.agent.getReport() returns "ok"');
assert.sameValue(
$262.agent.getReport(),
started[0],
'$262.agent.getReport() returns the value of `started[0]` (undefined)'
);
2018-03-20 15:40:33 +01:00
assert.sameValue(Atomics.wake(i32a, 2, 1), 1, 'Atomics.wake(i32a, 2, 1) returns 1');
assert.sameValue($262.agent.getReport(), 'ok', '$262.agent.getReport() returns "ok"');
assert.sameValue(
$262.agent.getReport(),
started[1],
'$262.agent.getReport() returns the value of `started[1]` (undefined)'
);
2018-03-20 15:40:33 +01:00
assert.sameValue(Atomics.wake(i32a, 3, 1), 1, 'Atomics.wake(i32a, 3, 1) returns 1');
assert.sameValue($262.agent.getReport(), 'ok', '$262.agent.getReport() returns "ok"');
assert.sameValue(
$262.agent.getReport(),
started[2],
'$262.agent.getReport() returns the value of `started[2]` (undefined)'
);