Unix sockets in Go

unix-socket.go

package main

import (
	"fmt"
	"net"
	"os"
	"os/signal"
	"time"
)

func main() {
	listener, err := net.Listen("unix", "/tmp/unixy.sock")
	if err != nil {
		panic(err)
	}
	defer os.Remove("/tmp/unixy.sock")
	fmt.Println("listening on", listener.Addr())

	quitCh := make(chan os.Signal, 0)
	signal.Notify(quitCh, os.Interrupt)
	go func() {
		<-quitCh
		os.Remove("/tmp/unixy.sock")
		os.Exit(0)
	}()

	for {
		conn, err := listener.Accept()
		if err != nil {
			panic(err)
		}
		fmt.Println("connected:", conn.RemoteAddr())

		go func() {
			for {
				_, err = fmt.Fprintf(conn, "it's now %s\n", time.Now())
				if err != nil {
					fmt.Fprintln(os.Stderr, err)
					err = conn.Close()
					if err != nil {
						fmt.Fprintln(os.Stderr, err)
					}
					return
				}
				time.Sleep(1 * time.Second)
			}
		}()
	}
}