mloughran

require 'em-hiredis'

EM.run {
  require 'em-hiredis'
  redis = EM::Hiredis.connect
  
  # If you pass a block to subscribe it will be called whenever a message
  # is received on this channel
  redis.pubsub.subscribe('foo') { |msg|
    p [:received_foo, msg]

mloughran

require 'em-hiredis'

EM.run {
  redis = EM::Hiredis.connect
  
  redis.set('foo', 'value')
  
  redis.watch('foo') {
    puts "Watching - try changing key foo within 1s"
    EM.add_timer(1) {

mloughran

module EventMachine
  module WebSocket
    class MaskedString < String
      def read_mask
        raise "Too short" if bytesize < 4 # TODO - change
        @masking_key = String.new(self[0..3])
      end

      def slice_mask
        slice!(0, 4)

mloughran

require 'rubygems'
require 'benchmark'
require 'stringio'

Benchmark.bm do |x|
  n = 1000000
  x.report('string') do
    string = ''
    appended = 'b' * 100
    

mloughran

require 'rubygems'
require 'eventmachine'
require 'em-websocket'

class CustomWSConnection < EventMachine::WebSocket::Connection
  def trigger_on_message(msg)
    send "Pong: #{msg}"
  end
  def trigger_on_open
    send "Hello Client!"

mloughran

require 'rubygems'
require 'net/http'
require 'uri'
require 'json'

class GoogleClosure
  class Error < RuntimeError; end
  
  HOST = URI.parse('http://closure-compiler.appspot.com/compile')

mloughran

Getting started

First add your twitter username and password. Then server.rb and once it's started open websocket.html in your browser. You should see some tweets appear. If not take a look at the javascript console.

mloughran

# Easily calculate mean and standard distribution of a distribution without
# collecting all values in memory
#
class Distribution
  def initialize
    @n, @sum_x, @sum_x_2 = 0, 0, 0
  end
  
  def <<(x)
    @n += 1

mloughran

# encoding: UTF-8

require 'digest/md5'

puts Digest::MD5.hexdigest("asdf") # => "912ec803b2ce49e4a541068d495ab570"
puts Digest::MD5.hexdigest("åß∂ƒ") # => "0d65ab8f1db3344230f46420e56e465f"

mloughran

class Command
  class << self
    def run(command)
      output = `#{command} 2>&1`.chomp
      if $? != 0
        raise " *** Command `#{command}` failed with the following output:\n#{output}"
      end
      output
    end
  end