rredpoppy

32-bit ELF binary

how to assemble and link:

nasm -f elf32 -o <filename>.o <filename>.asm
ld -m elf_i386 -o <filename> <filename>.o

template code (hello world):

section .text
global _start

rredpoppy

AWS EC2 Spot Instances for GitHub Self-hosted runners

Below CloudFormation stack which runs GitHub Self-hosted runners on EC2 Spot Instances managed by AutoScalingGroup. It automatically register new instances as self-hosted runners and removes them when Spot is interrupted.

How to use?

1. Download YML below into file
2. Create AWS CloudFormation stack
   • Provide values for parameters

• If you need to install smt in UserData fill stack parameter AdditionalUserData

rredpoppy

/*
 * Unrestricted security policy files for Java JRE need to be installed from Oracle for 256 keys to work
 */
package com.mycompany.mavenproject1;

import java.security.SecureRandom;
import java.security.Security;

import javax.crypto.Cipher;
import javax.crypto.SecretKey;

rredpoppy

[
  { "id": "QJ5DOWPGxwg", "title": "It's beginning to look a lot like Christmas" }
  , { "id": "xvHQO9LT6ZI", "title": "White Christmas" }
  , { "id": "R8CBoVc_OMI", "title": "Santa Claus is coming to town" }
  , { "id": "Nx-DvH41Tjo", "title": "Jingle Bells" }
]

rredpoppy

Advanced Functional Programming with Scala - Notes

Copyright © 2016-2017 Fantasyland Institute of Learning. All rights reserved.

1. Mastering Functions

A function is a mapping from one set, called a domain, to another set, called the codomain. A function associates every element in the domain with exactly one element in the codomain. In Scala, both domain and codomain are types.

val square : Int => Int = x => x * x

rredpoppy

Keybase proof

I hereby claim:

• I am rredpoppy on github.
• I am rredpoppy (https://keybase.io/rredpoppy) on keybase.
• I have a public key ASAOz55mLspQSB2oHg6DHDAuZqkZLsAoOUdarVvkw3MtrQo

To claim this, I am signing this object:

rredpoppy

var parser = document.createElement('a');
parser.href = "http://example.com:3000/pathname/?search=test#hash";

parser.protocol; // => "http:"
parser.hostname; // => "example.com"
parser.port;     // => "3000"
parser.pathname; // => "/pathname/"
parser.search;   // => "?search=test"
parser.hash;     // => "#hash"
parser.host;     // => "example.com:3000"

rredpoppy

package aidaclient;

import com.sun.xml.internal.ws.developer.WSBindingProvider;
import com.whitecitycode.aida.*;
import java.util.List;

/**
 *
 * @author adrian
 */

rredpoppy

curl http://www.linux-projects.org/listing/uv4l_repo/lrkey.asc | sudo apt-key add -
sudo vi /etc/apt/sources.list
cat /etc/apt/sources.list
deb http://mirrordirector.raspbian.org/raspbian/ wheezy main contrib non-free rpi
deb http://www.linux-projects.org/listing/uv4l_repo/raspbian/ wheezy main

sudo apt-get update
sudo apt-get install uv4l-webrtc
sudo apt-get install uv4l-raspicam-extras
sudo service uv4l_raspicam restart

rredpoppy

Clojure Destructuring Tutorial and Cheat Sheet

(Related blog post)

Simply put, destructuring in Clojure is a way extract values from a datastructure and bind them to symbols, without having to explicitly traverse the datstructure. It allows for elegant and concise Clojure code.

Vectors