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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: --experimental-wasm-threads --expose-gc
const kNumMessages = 1000;
function AllocMemory(pages = 1, max = pages) {
return new WebAssembly.Memory({initial : pages, maximum : max, shared : true});
}
(function RunTest() {
let worker = new Worker(
`onmessage =
function(msg) {
if (msg.memory) postMessage({memory : msg.memory});
gc();
}`, {type : 'string'});
let time = performance.now();
for (let i = 0; i < kNumMessages; i++) {
let now = performance.now();
print(`iteration ${i}, Δ = ${(now - time).toFixed(3)} ms`);
time = now;
let memory = AllocMemory();
worker.postMessage({memory : memory});
let msg = worker.getMessage();
if (msg.memory) {
assertInstanceof(msg.memory, WebAssembly.Memory);
}
gc();
}
})();
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