Demonstrating how to use Node worker_thread module with RxJS observable to stream data from a worker thread to it's parent thread.
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const { workerData, parentPort } = require('worker_threads'); | |
parentPort.postMessage(`starting heavy duty work from process ${process.pid} that will take ${workerData}s to complete`); | |
timeLimit = workerData; | |
timer = 0; | |
// simulate a long-running process with updates posted back on a regular interval | |
do { | |
setTimeout( | |
(count) => { | |
parentPort.postMessage(`heavy duty work in progress...${count + 1}s`); | |
if (count === timeLimit) { | |
parentPort.postMessage('done heavy duty work'); | |
} | |
}, | |
1000 * timer, | |
timer); | |
} while (++timer !== timeLimit); |
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