gistfile1.txt

        var startupErr error
        startupTimeoutChan := make(chan bool)

        go func() {
                for i := 5; i >= 0; i-- {
                        time.Sleep(time.Second)
                        startupTimeoutChan <- i == 0
                }
        }()


StartupLoop:
        for ;; {
                startupErr = srv.ListenAndServe()
                if startupErr.Error() != "listen tcp :80: bind: address already in use" {
                        break StartupLoop
                }

                select {
                case shouldExit := <- startupTimeoutChan:
                        if shouldExit {
                                break StartupLoop
                        }
                        if startupErr != nil {
                                fmt.Printf("%+v, retrying...\n", startupErr)
                        }
                default:
                }
        }

        if startupErr != nil {
                fmt.Println("http_start:", startupErr)
        }