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Evangelos Pappas epappas

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UNINCORPORATED FACTS

  • _tickCallback processes the process.nextCallback queue
  • setTimeout cannot have a timeout smaller than 1
  • domains make changes

Understanding the Node event loop

There are two important things to remember about the Node event loop. The

@bricef
bricef / AES.c
Last active March 4, 2023 11:29
A simple example of using AES encryption in Java and C.
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
/*
* MCrypt API available online:
* http://linux.die.net/man/3/mcrypt
*/
#include <mcrypt.h>
@mystix
mystix / install-elasticsearch-debian
Last active March 19, 2023 15:14 — forked from karussell/install-elasticsearch-debian
Install ElasticSearch on Debian
VERSION=0.20.6
sudo apt-get update
sudo apt-get install openjdk-6-jdk
wget https://download.elasticsearch.org/elasticsearch/elasticsearch/elasticsearch-$VERSION.deb
sudo dpkg -i elasticsearch-$VERSION.deb
# be sure you add "action.disable_delete_all_indices" : true to the config!!
@yefim
yefim / Dockerrun.aws.json
Last active April 7, 2023 16:11
Build a Docker image, push it to AWS EC2 Container Registry, then deploy it to AWS Elastic Beanstalk
{
"AWSEBDockerrunVersion": "1",
"Image": {
"Name": "<AWS_ACCOUNT_ID>.dkr.ecr.us-east-1.amazonaws.com/<NAME>:<TAG>",
"Update": "true"
},
"Ports": [
{
"ContainerPort": "443"
}
@timesler
timesler / deploy_dolly_v2.ipynb
Created April 21, 2023 23:03
Deploy Dolly v2.0 to SageMaker
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@BretFisher
BretFisher / .travis.yml
Created February 15, 2016 21:26
Travis-CI Docker Image Build and Push to AWS ECR
sudo: required #is required to use docker service in travis
language: php #can be any language, just php for example
services:
- docker # required, but travis uses older version of docker :(
install:
- echo "install nothing!" # put your normal pre-testing installs here
@trevnorris
trevnorris / perf-flame-graph-notes.md
Last active December 24, 2023 05:25
Quick steps of how to create a flame graph using perf

The prep-script.sh will setup the latest Node and install the latest perf version on your Linux box.

When you want to generate the flame graph, run the following (folder locations taken from install script):

sudo sysctl kernel.kptr_restrict=0
# May also have to do the following:
# (additional reading http://unix.stackexchange.com/questions/14227/do-i-need-root-admin-permissions-to-run-userspace-perf-tool-perf-events-ar )
sudo sysctl kernel.perf_event_paranoid=0
@paolorossi
paolorossi / html5-video-streamer.js
Created March 7, 2012 13:21
Node.js HTML5 video streamer
/*
* Inspired by: http://stackoverflow.com/questions/4360060/video-streaming-with-html-5-via-node-js
*/
var http = require('http'),
fs = require('fs'),
util = require('util');
http.createServer(function (req, res) {
var path = 'video.mp4';
@gibbs
gibbs / currency_symbols.php
Last active April 3, 2024 10:09
An array of currency symbols as HTML entities
<?php
$currency_symbols = array(
'AED' => '&#1583;.&#1573;', // ?
'AFN' => '&#65;&#102;',
'ALL' => '&#76;&#101;&#107;',
'AMD' => '',
'ANG' => '&#402;',
'AOA' => '&#75;&#122;', // ?
'ARS' => '&#36;',
'AUD' => '&#36;',
@staltz
staltz / introrx.md
Last active May 7, 2024 09:38
The introduction to Reactive Programming you've been missing