giorgiosironi · November 14, 2019 10:23 · giorgiosironi · Nov 13, 2019 · diversemix · Nov 14, 2019
diff --git a/blocking-test.js b/blocking-test.js
 const fs = require('fs');
 const log = (text) => {
  console.log(new Date() + ' ' + text);
 }
 const util = require('util');

 const sleep = async ms => {
  return new Promise(resolve => setTimeout(resolve, ms));
 };

 const asyncFunc1 = async () => {
  log('f1 Start');
  await sleep(2000);
  log('f1 End');
 };

 const asyncFunc2 = async () => {
  log('f2 Start');
  await sleep(1000);
  let fd = await util.promisify(fs.open)('/tmp/example.txt', 'w');
  var longString = (new Array(10*1024*1024)).join("x");
  syncFunc(fd, longString);
  log('f2 End');
 };

 const syncFunc = async (fd, content) => {
  console.log('### do something sync...');
  for (let i = 0; i < 1000; i++) {
    fs.writeSync(fd, content);
  }
 };

 log('### Startin...');
 asyncFunc1();
 log('### do another job....');
 asyncFunc2();
 log('### Stoppin...');
	const fs = require('fs');
	const log = (text) => {
	console.log(new Date() + ' ' + text);
	}
	const util = require('util');

	const sleep = async ms => {
	return new Promise(resolve => setTimeout(resolve, ms));
	};

	const asyncFunc1 = async () => {
	log('f1 Start');
	await sleep(2000);
	log('f1 End');
	};

	const asyncFunc2 = async () => {
	log('f2 Start');
	await sleep(1000);
	let fd = await util.promisify(fs.open)('/tmp/example.txt', 'w');
	var longString = (new Array(1010241024)).join("x");
	syncFunc(fd, longString);
	log('f2 End');
	};

	const syncFunc = async (fd, content) => {
	console.log('### do something sync...');
	for (let i = 0; i < 1000; i++) {
	fs.writeSync(fd, content);
	}
	};

	log('### Startin...');
	asyncFunc1();
	log('### do another job....');
	asyncFunc2();
	log('### Stoppin...');