physacco’s gists

physacco / test_log.go

Created March 10, 2013 06:14

This demonstrates usage of the log package in go. Log to stderr or a file.

	package main

	import (
	"os"
	"log"
	"time"
	)

	func main() {
	logfile, err := os.OpenFile("test.log",

physacco / test_periodic_timer.go

Created March 10, 2013 06:52

This demonstrates usage of timer in go. Both one-shot timer and periodic timer. In the periodic timer example, goroutine and select are used.

	package main

	import (
	"fmt"
	"time"
	)

	// The timeout handler.
	func ontimeout(t time.Time) {
	fmt.Println("[timeout] ", t)

physacco / test_json_decoder.go

Last active December 14, 2015 18:59

Test the JSON decoder in go's stdlib by parsing package.json of a nodejs project.

	package main

	import (
	"os"
	"fmt"
	"encoding/json"
	)

	type PackageInfo struct {
	Name string

physacco / test_regexp.go

Created March 11, 2013 11:45

This is a basic example of the regexp package in go's stdlib.

	package main

	import (
	"fmt"
	"regexp"
	)

	func main() {
	str := "Ruby 2.0 is the 2nd major release of Ruby"
	re, err := regexp.Compile("[.\\d]+")

physacco / simplerouter.go

Last active December 14, 2015 19:09

This is a bidirectional router that shows how to implement I/O multiplexing in Go. The function is similar to netcat.

	/*
	* This is a bidirectional router that shows how to implement
	* I/O multiplexing in Go. The function is similar to netcat.
	* Test this program in terminal:
	*
	* $ go run simplerouter.go
	* GET / HTTP/1.0<CR>
	* <CR>
	* HTTP/1.0 302 Found
	* ...

physacco / simplerouter2.go

Created March 12, 2013 03:49

This is a bidirectional router that shows how to implement I/O multiplexing in Go. The function is similar to netcat. Different from simplerouter.go, it uses 2 goroutines to route (si, no) and (ni, so). Thus neither direction blocks.

	/*
	* This is a bidirectional router that shows how to implement
	* I/O multiplexing in Go. The function is similar to netcat.
	* Test this program in terminal:
	*
	* $ go run simplerouter.go
	* GET / HTTP/1.0<CR>
	* <CR>
	* HTTP/1.0 302 Found
	* ...

physacco / netcat.go

Created March 12, 2013 04:38

This is a simple netcat implementation in go.

	/*
	* This is a simple netcat implementation in go.
	* Test this program in terminal:
	*
	* $ go run simplerouter.go
	* GET / HTTP/1.0<CR>
	* <CR>
	* HTTP/1.0 302 Found
	* ...
	*

physacco / test_timeout.go

Created March 13, 2013 01:49

This code shows how to add a timeout to your function in go.

	package main

	import (
	"fmt"
	"time"
	)

	func work(ch chan int) {
	time.Sleep(5000 * time.Millisecond)
	ch <- 12345

physacco / socks5.go

Created March 13, 2013 13:55

This is a high performance socks5 proxy server written in go. It is much faster than those I wrote before.

	package main

	import (
	"io"
	"os"
	"fmt"
	"log"
	"net"
	"time"
	"strings"

physacco / test_signal.go

Created March 14, 2013 05:07

A demo of signal handling in go.

	package main

	import (
	"fmt"
	"os"
	"os/signal"
	"syscall"
	)

	func main() {

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