killing forked children after setrawmode(true -> false)

child.js

var cp = require("child_process");

console.log('hi from child', process.stdin.isRaw)

setInterval(() => {
    console.log('hi from child', process.stdin.isRaw);
}, 1000);

var child2 = cp.fork('child2.js', []);
console.log('child 2 pid', child2.pid);

child2.js

console.log('2 hi from child 2', process.stdin.isRaw)

var handle = setInterval(() => {
    console.log('2 hi from child 2', process.stdin.isRaw);
}, 1000);

parent.js

console.log('start parent');
var cp = require("child_process");

process.stdin.setRawMode(true);
process.stdin.setEncoding('utf8');
const CTRL_C = '\u0003';

console.log('HAY parent', process.stdin.isRaw, process.stdin.isTTY);

var handler = (str) => {
    console.log('a keypress!');
    if (str === CTRL_C) {
        console.log('press ctrl c again to exit');
        process.stdin.setRawMode(false);
    }
}

process.stdin.on('data', handler)

process.on('SIGINT', ()=>{
    process.stdin.emit('end') // without this terminal might wont be responsive to ctrl+c after exit
    process.exit();
})

var child = cp.fork('child.js', []);
console.log('child pid', child.pid);