hr-timeout.js

const addHrtime = require('@quarterto/add-hrtime');

const timers = new Set();

exports.setHrTimeout = (fn, args, time) => {
  const end = addHrtime(process.hrtime(), time);
  const id = timers.size;
  timers.add(id);

  function loop() {
    const [s, ns] = process.hrtime(end);
    if(!timers.has(id)) return;

    if(s >= 0 && ns >= 0) {
      fn(...args);
      exports.clearHrTimeout(id);
    } else {
      setImmediate(loop);
    }
  }

  setImmediate(loop);
  return id;
};

exports.clearHrTimeout = id => timers.delete(id);