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'use strict';
const common = require('../common.js');
const { Worker } = require('worker_threads');
const path = require('path');
const bench = common.createBenchmark(main, {
workers: [1],
payload: ['string', 'object'],
sendsPerBroadcast: [1, 10],
n: [1e5]
});
const workerPath = path.resolve(__dirname, '..', 'fixtures', 'echo.worker.js');
function main({ n, workers, sendsPerBroadcast: sends, payload: payloadType }) {
const expectedPerBroadcast = sends * workers;
let payload;
let readies = 0;
let broadcasts = 0;
let msgCount = 0;
switch (payloadType) {
case 'string':
payload = 'hello world!';
break;
case 'object':
payload = { action: 'pewpewpew', powerLevel: 9001 };
break;
default:
throw new Error('Unsupported payload type');
}
const workerObjs = [];
for (let i = 0; i < workers; ++i) {
const worker = new Worker(workerPath);
workerObjs.push(worker);
worker.on('online', onOnline);
worker.on('message', onMessage);
}
function onOnline() {
if (++readies === workers) {
bench.start();
broadcast();
}
}
function broadcast() {
if (broadcasts++ === n) {
bench.end(n);
for (const worker of workerObjs) {
worker.unref();
}
return;
}
for (const worker of workerObjs) {
for (let i = 0; i < sends; ++i)
worker.postMessage(payload);
}
}
function onMessage() {
if (++msgCount === expectedPerBroadcast) {
msgCount = 0;
broadcast();
}
}
}
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