Beispiel #1
0
func startDaemon() {

	var out io.Writer = os.Stdout
	if !log.IsTerminal() {
		logFile, logFileErr := util.LogFile("rexray.log")
		failOnError(logFileErr)
		out = io.MultiWriter(os.Stdout, logFile)
	}
	log.SetOutput(out)

	fmt.Fprintf(out, "%s\n", rexRayLogoASCII)
	util.PrintVersion(out)
	fmt.Fprintln(out)

	var success []byte
	var failure []byte
	var conn net.Conn

	if !fg {

		success = []byte{0}
		failure = []byte{1}

		var dialErr error

		log.Printf("dialing %s", client)
		conn, dialErr = net.Dial("unix", client)
		if dialErr != nil {
			panic(dialErr)
		}
	}

	writePidErr := util.WritePidFile(-1)
	if writePidErr != nil {
		if conn != nil {
			conn.Write(failure)
		}
		panic(writePidErr)
	}

	defer func() {
		r := recover()
		os.Remove(util.PidFilePath())
		if r != nil {
			panic(r)
		}
	}()

	log.Printf("created pid file, pid=%d", os.Getpid())

	init := make(chan error)
	sigc := make(chan os.Signal, 1)
	stop := make(chan os.Signal)

	signal.Notify(sigc,
		syscall.SIGKILL,
		syscall.SIGHUP,
		syscall.SIGINT,
		syscall.SIGTERM,
		syscall.SIGQUIT)

	go func() {
		rrdaemon.Start(r.Config.Host, init, stop)
	}()

	var initErrors []error

	for initErr := range init {
		initErrors = append(initErrors, initErr)
		log.Println(initErr)
	}

	if conn != nil {
		if len(initErrors) == 0 {
			conn.Write(success)
		} else {
			conn.Write(failure)
		}

		conn.Close()
	}

	if len(initErrors) > 0 {
		return
	}

	sigv := <-sigc
	log.Printf("received shutdown signal %v", sigv)
	stop <- sigv
}
Beispiel #2
0
func startDaemon() {

	fmt.Printf("%s\n", RexRayLogoAscii)

	var success []byte
	var failure []byte
	var conn net.Conn

	if !fg {

		success = []byte{0}
		failure = []byte{1}

		var dialErr error

		log.Printf("Dialing %s\n", client)
		conn, dialErr = net.Dial("unix", client)
		if dialErr != nil {
			panic(dialErr)
		}
	}

	writePidErr := util.WritePidFile(-1)
	if writePidErr != nil {
		if conn != nil {
			conn.Write(failure)
		}
		panic(writePidErr)
	}

	defer func() {
		r := recover()
		os.Remove(util.PidFile())
		if r != nil {
			panic(r)
		}
	}()

	log.Printf("Created pid file, pid=%d\n", os.Getpid())

	init := make(chan error)
	sigc := make(chan os.Signal, 1)
	stop := make(chan os.Signal)

	signal.Notify(sigc,
		syscall.SIGKILL,
		syscall.SIGHUP,
		syscall.SIGINT,
		syscall.SIGTERM,
		syscall.SIGQUIT)

	go func() {
		rrdaemon.Start(c.Host, init, stop)
	}()

	initErrors := make([]error, 0)

	for initErr := range init {
		initErrors = append(initErrors, initErr)
		log.Println(initErr)
	}

	if conn != nil {
		if len(initErrors) == 0 {
			conn.Write(success)
		} else {
			conn.Write(failure)
		}

		conn.Close()
	}

	if len(initErrors) > 0 {
		return
	}

	sigv := <-sigc
	log.Printf("Received shutdown signal %v\n", sigv)
	stop <- sigv
}