matthewmccullough

Mac OSX BOF

• Matthew McCullough
• Ben Ellingson

Brew vs. custom installs

• Generally prefer Brew recipes

MacPorts usage

• Prefer Brew recipes over MacPorts (no sudo needed)

JakeWharton

/* Base fragment to ensure the parent activity implements a contract interface. */
public abstract class ContractFragment<T> extends Fragment {
    private T mContract;

    @Override
    public void onAttach(Activity activity) {
        try {
            mContract = (T)activity;
        } catch (ClassCastException e) {
            throw new IllegalStateException(activity.getClass().getSimpleName()

bdurand

#!/usr/bin/env ruby

require 'bundler'
require 'benchmark'

REGEXPS = [
  /^no such file to load -- (.+)$/i,
  /^Missing \w+ (?:file\s*)?([^\s]+.rb)$/i,
  /^Missing API definition file in (.+)$/i,
  /^cannot load such file -- (.+)$/i,

chaffeqa

#!/usr/bin/env ruby

require 'bundler'
require 'benchmark'

REGEXPS = [
  /^no such file to load -- (.+)$/i,
  /^Missing \w+ (?:file\s*)?([^\s]+.rb)$/i,
  /^Missing API definition file in (.+)$/i,
  /^cannot load such file -- (.+)$/i,

matthewmccullough

Mac OSX BOF

Questions:

1. Key mapping

• Keyboard pref pane for shortcuts
• Type to navigate
• Safari ⌘1 to bookmarks

2. VM mapping of keys

jboner

Latency Comparison Numbers (~2012)
----------------------------------
L1 cache reference                           0.5 ns
Branch mispredict                            5   ns
L2 cache reference                           7   ns                      14x L1 cache
Mutex lock/unlock                           25   ns
Main memory reference                      100   ns                      20x L2 cache, 200x L1 cache
Compress 1K bytes with Zippy             3,000   ns        3 us
Send 1K bytes over 1 Gbps network       10,000   ns       10 us
Read 4K randomly from SSD*             150,000   ns      150 us          ~1GB/sec SSD

mikea

L1 cache reference                  0.5 ns
Branch mispredict                   5 ns
L2 cache reference                  7 ns                      14x L1 cache
Mutex lock/unlock                   25 ns                     
Main memory reference               100 ns                    4x mutex op, 20x L2 cache, 200x L1 cache
Compress 1K bytes with Zippy        3,000 ns
Send 2K bytes over 1 Gbps network   20,000 ns
Read 1 MB sequentially from memory  250,000 ns

ingeniarius

class User < ActiveRecord::Base
end

class Book < ActiveRecord::Base
end

module CustomerRole
end

class AddToCartContext

pmarreck

############################################################################
# A more comprehensive drop-in replacement for Rails' internal link matcher regex
# which I invented from scratch... Oh yeah, Adderall is awesome.
# Takes about 40% longer to run than the stock auto_link regex in our test suite unfortunately :(
# but it accounts for pretty much EVERY linkable URI/URL, and is far more (in my opinion)
# readable and maintainable, due to its use of named groups/tokens.
# References used to build this:
# http://www.faqs.org/rfcs/rfc1738.html
# http://tools.ietf.org/html/rfc3986
# http://en.wikipedia.org/wiki/URI_scheme << primary ref, was awesome, great diagram

javan

//
// Example usage: phantomjs screenshot.js http://yahoo.com /tmp/yahoo.png
//

var system = require('system');
var url = system.args[1];
var filename = system.args[2];
var page = new WebPage();

page.open(url, function (status) {