alexandru

a, b = 0, 1

while still_has_lock():
   time.sleep(a + b)
   a, b = b, a+b

# Fibonacci WTF !

alexandru

# Install with:
# bash < <(curl -L https://raw.github.com/gist/1333785)
#
# Reference: http://blog.wyeworks.com/2011/11/1/ruby-1-9-3-and-ruby-debug

echo "Installing ruby-debug with ruby-1.9.3-p125 ..."

curl -OL http://rubyforge.org/frs/download.php/75414/linecache19-0.5.13.gem
curl -OL http://rubyforge.org/frs/download.php/75415/ruby-debug-base19-0.11.26.gem

alexandru

L1 cache reference                  0.5 ns
Branch mispredict                   5 ns
L2 cache reference                  7 ns
Mutex lock/unlock                   25 ns
Main memory reference               100 ns
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
Round trip within same datacenter   500,000 ns
Disk seek                           10,000,000 ns

alexandru

java.lang.NullPointerException
	at play.core.server.netty.RequestBodyHandler$$anonfun$1.apply(RequestBodyHandler.scala:45)
	at play.core.server.netty.RequestBodyHandler$$anonfun$1.apply(RequestBodyHandler.scala:43)
	at scala.concurrent.stm.ccstm.InTxnImpl.runBlock(InTxnImpl.scala:538)
	at scala.concurrent.stm.ccstm.InTxnImpl.topLevelAttempt(InTxnImpl.scala:494)
	at scala.concurrent.stm.ccstm.InTxnImpl.topLevelAtomicImpl(InTxnImpl.scala:365)
	at scala.concurrent.stm.ccstm.InTxnImpl.atomic(InTxnImpl.scala:244)
	at scala.concurrent.stm.ccstm.CCSTMExecutor.apply(CCSTMExecutor.scala:24)
	at play.core.server.netty.RequestBodyHandler$class.pushChunk$1(RequestBodyHandler.scala:43)
	at play.core.server.netty.RequestBodyHandler$$anon$1.messageReceived(RequestBodyHandler.scala:89)

alexandru

import play.api.mvc._

trait CorsSupport { self: Controller =>

  def CorsAction(cb: => Result): Action[AnyContent] =
    Action(cb.withHeaders(actionCorsHeaders: _*))

  def CorsAction(cb: Request[AnyContent] => Result): Action[AnyContent] =
    Action { request =>
      cb(request).withHeaders(actionCorsHeaders: _*)

alexandru

#!/usr/bin/env bash

# Install script adapted from:
# https://gist.github.com/dwayne/2983873

NODE_DIR="$HOME/.nodejs"

echo 'export PATH=$HOME/$NODE_DIR/bin:$PATH' >> ~/.bashrc
echo 'export NODE_PATH=$HOME/$NODE_DIR/lib/node_modules' >> ~/.bashrc
source ~/.bashrc

alexandru

package object extensions {
  import play.api.mvc._

  implicit class ResultExtensions(val result: PlainResult) 
      extends AnyVal {

    def withLangCookie(lang: Lang)(implicit app: Application): PlainResult = 
      result.withCookies(Cookie(Play.langCookieName, lang.code, httpOnly = false))
  }
}

alexandru

// Helper for keeping track of the active project bindings 
// (because we don't want to hard-code those inside singleton objects)

object Environment {
  def currentBindings =
    ref.get match {
      case null =>
        throw new NullPointerException("No BindingModule currently registered (app not running?)")
      case value =>
        value

alexandru

import scalaz.concurrent.Task

def benchmark[T](repeat: Int)(callback: => T): Unit = {
  var lastResult: Any = null
  var total = Duration.Zero

  for (i <- 0 until repeat) {
    val time = System.nanoTime()
    val result = callback
    val measured = (System.nanoTime() - time).nanos

alexandru

package fsm

import scala.annotation.implicitNotFound
import scala.util.control._
import RefContext._
import Ref._

/** 
 * Ref is a scoped type-safe mutable reference.
 *