Arachnid

/**
 * Base contract that all upgradeable contracts should use.
 * 
 * Contracts implementing this interface are all called using delegatecall from
 * a dispatcher. As a result, the _sizes and _dest variables are shared with the
 * dispatcher contract, which allows the called contract to update these at will.
 * 
 * _sizes is a map of function signatures to return value sizes. Due to EVM
 * limitations, these need to be populated by the target contract, so the
 * dispatcher knows how many bytes of data to return from called functions.

tjade273

contract Database{
    mapping(uint => uint) public _data;
    mapping(address => bool) _owners;
    
    function Database(address[] owners){   //Called once at creation, pass in initial owners
        for(uint i; i<owners.length; i++){
            _owners[owners[i]]=true;
        }
    }
    

tadast

# 1) Create your private key (any password will do, we remove it below)

$ cd ~/.ssh
$ openssl genrsa -des3 -out server.orig.key 2048


# 2) Remove the password

$ openssl rsa -in server.orig.key -out server.key

octplane

Life and death of Unicorns

The introduction of our Unicorn management tool, Polycorn.

Photo by Protohiro from Flickr

At Fotopedia, we use Unicorn to serve our main Rails application. Every day, we restart our application several times, spawning and killing hundred of Unicorns. Managing graceful restarts is a complex task, and requires careful monitoring and command. This article introduces our tool Polycorn, a Unicorn management program.

[[MORE]]

kevinburke

# Twilio HTTP HAProxy Configuration 
# Version: 0.1

global
        daemon
        log 127.0.0.1 local0 info
        maxconn 60000
        spread-checks 3

plentz

# to generate your dhparam.pem file, run in the terminal
openssl dhparam -out /etc/nginx/ssl/dhparam.pem 2048

natritmeyer

require 'net/http'

class HttpClient
  def initialize(base_url, username = nil, password = nil)
    @base_url = base_url
    @username = username
    @password = password
  end
  
  def get(path, headers = {})

willurd

Each of these commands will run an ad hoc http static server in your current (or specified) directory, available at http://localhost:8000. Use this power wisely.

Discussion on reddit.

Python 2.x

$ python -m SimpleHTTPServer 8000

rcrowley

package main

import (
	"log"
	"net"
	"os"
	"os/signal"
	"sync"
	"syscall"
	"time"

max-mapper

var gpio = require("gpio")
var gpio22, intervalTimer

// Flashing lights if LED connected to GPIO22
gpio22 = gpio.export(22, {
  ready: blinkLED
})

function blinkLED() {
  intervalTimer = setInterval(function() {