deandob

    // Live video stream management for HTML5 video. Uses FFMPEG to connect to H.264 camera stream, 
    // Camera stream is remuxed to a MP4 stream for HTML5 video compatibility and segments are recorded for later playback
var liveStream = function (req, resp) {                                            // handle each client request by instantiating a new FFMPEG instance
    // For live streaming, create a fragmented MP4 file with empty moov (no seeking possible).

    var reqUrl = url.parse(req.url, true)
    var cameraName = typeof reqUrl.pathname === "string" ? reqUrl.pathname.substring(1) : undefined;
    if (cameraName) {
        try {
            cameraName = decodeURIComponent(cameraName);

joewagner

// --- Dependancies ---
var _ = require('underscore');
var mongoose = require('mongoose');

// Any function that makes an update to a mongoose model that has an Array field can
// use this to catch version errors, and retry the update at most two times
var catchVersionErr = function () {
  var updateFunc, callback, context, args = _.toArray(arguments);

  context = args.shift();

tomdz

Setup vagrant vm

vagrant box add precise64 http://files.vagrantup.com/precise64.box
vagrant init precise64
sed -i 's/# config.vm.network :hostonly/config.vm.network :hostonly/' Vagrantfile
vagrant up
vagrant ssh

Install base software and apache (to have something to proxy)

bsphere

#/etc/init/myapp.conf
description "MyApp Node.js"
author "[email protected]"

start on (local-filesystems and net-device-up IFACE=eth0)
stop on shutdown

respawn
respawn limit 5 60

jedy

package main

// #include <stdlib.h> 
// #include "wrapper.c"
import "C"
import "unsafe"
import "fmt"

func read(filename string) string {
	f := C.CString(filename)

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

mikeal

var portrange = 45032

function getPort (cb) {
  var port = portrange
  portrange += 1

  var server = net.createServer()
  server.listen(port, function (err) {
    server.once('close', function () {
      cb(port)

tbranyen

// Require libraries
var os = require("os");
var fs = require("fs");
var readline = require("readline");
var cluster = require("cluster");
var express = require("express");
var site = express();

// Var up, bro
var i, read;

attaboy

// Destroys the localStorage copy of CSS that less.js creates

function destroyLessCache(pathToCss) { // e.g. '/css/' or '/stylesheets/'

  if (!window.localStorage || !less || less.env !== 'development') {
    return;
  }
  var host = window.location.host;
  var protocol = window.location.protocol;
  var keyPrefix = protocol + '//' + host + pathToCss;

senko

#!/bin/bash
#
# Watch current directory (recursively) for file changes, and execute
# a command when a file or directory is created, modified or deleted.
#
# Written by: Senko Rasic <[email protected]>
#
# Requires Linux, bash and inotifywait (from inotify-tools package).
#
# To avoid executing the command multiple times when a sequence of