Page 116 - Nodejs 교과서 개정2판

§ Ӓܿ ݫੋ झۨ٘৬ ਕழ੄ ాन

worker_data.js
const {
Worker, isMainThread, parentPort, workerData,
} = require('worker_threads');

if (isMainThread) { // 부모일 때
const threads = new Set();
threads.add(new Worker(__filename, {
workerData: { start: 1 },
}));
threads.add(new Worker(__filename, {
workerData: { start: 2 },
}));
for (let worker of threads) {
worker.on('message', message => console.log('from worker', message));
worker.on('exit', () => {
threads.delete(worker);
if (threads.size === 0) {
console.log('job done');
}
});
}
} else { // 워커일 때
const data = workerData;
parentPort.postMessage(data.start + 100);
}

new Workerܳ ഐ୹ೡ ٸ ف ߣ૩ ੋࣻ੄ workerData ࣘࢿਵ۽ ਗೞח ؘ੉ఠܳ ࠁյ ࣻ ੓णפ׮ ਕழীࢲח w

orkerData۽ ࠗݽ۽ࠗఠ ؘ੉ఠܳ ߉णפ׮ അ੤ ف ѐ੄ ਕழо جইоҊ ੓ਵݴ пп ࠗݽ۽ࠗఠ ं੗ܳ ߉
ইࢲ 100ਸ ؊೧ ج۰સפ׮ ج۰઱ח ࣽр ਕழо ઙܐغয worker.on('exit')੉ प೯ؾפ׮ ਕழ ف ѐо

ݽف ઙܐغݶ job done੉ ۽Ӧؾפ׮

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