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// Copyright 2019 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// Flags: --stress-runs=1
const kBatchSize = 10;
const kNumBatches = 10;
function RunWorkerBatch(count) {
let script = `postMessage(42)`;
// Launch workers.
let workers = new Array(count);
for (let i = 0; i < count; i++) {
workers[i] = new Worker(script, {type : 'string'});
}
// Terminate half of the workers early.
for (let i = 0; i < workers.length; i++) {
if ((i & 1) == 1) workers[i].terminate();
}
// Get messages from some workers.
for (let i = 0; i < workers.length; i++) {
let msg = workers[i].getMessage();
assertTrue(msg === undefined || msg === 42);
// terminate all workers.
workers[i].terminate();
}
}
(function RunTest() {
print(`running ${kNumBatches} batches...`);
let time = performance.now();
for (let i = 0; i < kNumBatches; i++) {
let before = performance.now();
RunWorkerBatch(kBatchSize);
let time = performance.now() - before;
print(`batch ${i+1}, Δ = ${(time).toFixed(3)} ms`);
}
})();
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