Exemplo n.º 1
0
func main() {
	// Make shutdown catch Ctrl+c and system terminate
	shutdown.OnSignal(0, os.Interrupt, syscall.SIGTERM)

	// In the first stage we will make sure all request have finished
	shutdown.FirstFunc(func(interface{}) {
		log.Println("Notify upstream we are going offline")
		// TODO: Send a request upstream
	}, nil)

	// Start a service
	go dataLoop()

	// Start a webserver
	http.HandleFunc("/", HelloServer)
	log.Fatal(http.ListenAndServe(":8080", nil))
}
Exemplo n.º 2
0
func main() {
	// Make shutdown catch Ctrl+c and system terminate
	shutdown.OnSignal(0, os.Interrupt, syscall.SIGTERM)

	// Create a log file
	var logFile *os.File
	logFile, _ = os.Create("log.txt")

	// When shutdown is initiated, close the file
	shutdown.FirstFunc(closeFile, logFile)

	// Start a webserver
	http.HandleFunc("/", func(w http.ResponseWriter, req *http.Request) {
		// Get a lock, and write to the file if we get it.
		// While we have the lock the file will not be closed.
		if shutdown.Lock() {
			_, _ = logFile.WriteString(req.URL.String() + "\n")
			shutdown.Unlock()
		}
	})
	log.Fatal(http.ListenAndServe(":8080", nil))
}