rvigneshw

echo "Removing Docker IF EXISTS"
sudo apt-get remove docker docker-engine docker.io containerd runc
echo "Getting Docker install Script"
curl -fsSL https://get.docker.com -o get-docker.sh
echo "Executing Docker install Script"
sudo sh get-docker.sh
echo "Getting Docker-compose"
sudo curl -L "https://github.com/docker/compose/releases/download/1.27.4/docker-compose-$(uname -s)-$(uname -m)" -o /usr/local/bin/docker-compose
sudo chmod +x /usr/local/bin/docker-compose

rvigneshw

let flag = false;
setTimeout(() => {
    // this callback never gets called
    // because event loop is blocked
    flag = true;
}, 1000);

while (!flag) {
    console.log("still waiting")
}

rvigneshw

const fork = require('child_process').fork;

rvigneshw

process.on('message', (payload) => {
  try {
    //Some time taking stuff
    const processedData = processData(payload); 
    process.send(processedData);
  } catch (error) {
    process.send(error);
  }
});

rvigneshw

const worker = fork(filename.js)

rvigneshw

worker.send(data);

rvigneshw

worker.on('message', (processedData) => { 
  doSomethingElse(processedData); 
  worker.kill();
});