andhapp

if [ -f "${rvm_path}/scripts/rvm" ]; then

  source "${rvm_path}/scripts/rvm"

  if [ -f ".rvmrc" ]; then
    source ".rvmrc"
  elif [ -f ".ruby-version" ] && [ -f ".ruby-gemset" ]; then
    rvm use `cat .ruby-version`@`cat .ruby-gemset`
  elif [ -f ".ruby-version"  ]; then
    rvm use `cat .ruby-version`

andhapp

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

andhapp

OS X 10.10 Guide

Here's what I did to get things working.

1. Install Xcode 6

Yep, over at: https://developer.apple.com

2. Install the Command Line Tools (CLT)

andhapp

define(function(){
    var instance = null;

    function MySingleton(){
        if(instance !== null){
            throw new Error("Cannot instantiate more than one MySingleton, use MySingleton.getInstance()");
        } 
        
        this.initialize();
    }

andhapp

#!/usr/bin/env ruby

puts "Run this in another terminal:"
puts ""
puts "  sudo ./trace-gc-standalone.sh #{$$}"
puts ""
puts "... wait for the 'Ready!' message, switch back here and press enter to start."

GC::Profiler.enable
$stdin.gets

andhapp

# See:
# * http://thepugautomatic.com/2014/03/simpledelegator-autoloading-issues-with-rails/
# * https://groups.google.com/forum/#!topic/rubyonrails-core/PjGUK72BmFA
# * https://gist.github.com/henrik/9314943

require "delegate"

class RailsCompatibleSimpleDelegator < SimpleDelegator
  def self.const_missing(name)
    if ::Object.const_defined?(name)

andhapp

This is a proof-of-concept of a couple of concurrent data structures written in Ruby.

The implementations are heavily commented for those interested. There are benchmarks (with results) included below. The results are interesting, but, as always, take with a grain of salt.

Data structures

AtomicLinkedQueue is a lock-free queue, built on atomic CAS operations.

andhapp

class Foo
  def self.foo; end
  def foo; end
end

tp = TracePoint.new("call") do |trace|
  p [trace.defined_class, trace.method_id, trace.event, trace.lineno]
end

tp.enable

andhapp

TracePoint:
	disable                        1
	enable                         1

Object:
	require                        1983
	load_dependency                485
	[]                             18
	hash                           15
	initialize                     6

andhapp

#!/usr/bin/env ruby
# A quick and dirty implementation of an HTTP proxy server in Ruby
# because I did not want to install anything.
# 
# Copyright (C) 2009 Torsten Becker <[email protected]>

require 'socket'
require 'uri'