node-raiblocks-pow threaded implementation starting

index.js

// Change index.js to this contents
var cp = require('child_process');
var os = require('os');
var addon = require('bindings')('functions.node');
 
function zeroPad(num, size) {
  // Max 32 digits
  var s = "00000000000000000000000000000000" + num;
  return s.substr(s.length-size);
};

module.exports = function(hex) {
       return zeroPad(addon.calculate(hex), 16);
}

module.exports.threaded = function(hex, cb) {
  var threads = [];
  var threadCount = os.cpus().length;
  for(var i =0; i < threadCount; i++) {
    var thread = cp.fork(__dirname + '/thread.js');
    thread.on('message', work => {
      for(var j =0; j< threads.length; j++) {
        cp.spawn('taskkill', ['/pid', threads[j].pid, '/f', '/t']);
      }
      cb(zeroPad(work, 16));
    });
    thread.send(hex);
  };
}

thread.js

// Create a new file, thread.js
var addon = require('bindings')('functions.node')

process.on('message', hex => {
  process.send(addon.calculate(hex));
});