benbjohnson

#!/bin/bash

# Generate the frames
for i in {0..1800}
do
  echo "Generating frame $i"
  convert -background black -fill white -size 480x320 -pointsize 48 -gravity center label:${i} frame${i}.png
done

# Combine frames into H.264 MP4 video. (29.97fps & 30fps)

benbjohnson

package store

import (
	"fmt"

	"github.com/boltdb/bolt"
)

// reap removes sessions older than a given duration.
// This function assumes that all session data is stored in a "sessions" bucket

benbjohnson

Fixnums

positive fixnum

Save an integer within the range [0, 127] in 1 bytes.

+--------+
|0XXXXXXX|
+--------+

benbjohnson

Application-side Interfaces in Go

By moving the interface to the application-side (application.go), you can still set the implementation-specific configuration details when you instantiate your library structs. If the interface was implemented on the library-side then you would need to provide:

type DB interface {
  Get([]byte) ([]byte, error)
  Put([]byte, []byte) error
  CacheSize() int
 SetCacheSize(int)

benbjohnson

^ = The pointer to the initial element of the slice.

---


1. Initial queue (size=0, capacity=3)

-------
| | | |
-------

benbjohnson

Create an empty directory, download the code and run it:

$ mkdir /tmp/lj
$ cd /tmp/lj
$ wget https://gist.github.com/benbjohnson/5622779/raw/e53d227ebdbea8d513b62ad076feb3f6ac1c1594/luajit.go
$ go run luajit.go

And you should see:

benbjohnson

package main

import (
	"encoding/binary"
	"log"
	"time"

	"github.com/boltdb/bolt"
)

benbjohnson

package main

import (
	"encoding/json"
	"errors"
	"flag"
	"fmt"
	"io"
	"io/ioutil"
	"log"

benbjohnson

Steps

1. Setup Go cross-compile using Dave Cheney's instructions & package.

2. Copy the myapp.conf file to /etc/init/myapp.conf. Change the name of the service to whatever you want to call it.

3. Change the name parameter in myapp.conf to your application's name.

4. Change the script / end script block to whatever you need to startup your app.

benbjohnson

# This is what I have so far. The Go 1.2 installation doesn't seem to be correct so it's still breaking.

rm -rf /usr/local/go/src/pkg/appengine
rm -rf /usr/local/go/src/pkg/appengine_internal
rm /usr/local/go/src/pkg/os/error_posix.go

wget -O golang-crosscompile-master.zip https://github.com/davecheney/golang-crosscompile/archive/master.zip
unzip golang-crosscompile-master.zip
source golang-crosscompile-master/crosscompile.bash
go-crosscompile-build darwin/amd64