Ejemplo n.º 1
0
func getPorts() ([]OsSerialPort, error) {
	resolver, err := bonjour.NewResolver(nil)
	if err != nil {
		log.Println("Failed to initialize resolver:", err.Error())
		return nil, err
	}

	results := make(chan *bonjour.ServiceEntry)

	timeout := make(chan bool, 1)
	go func(exitCh chan<- bool) {
		time.Sleep(timeoutConst * time.Second)
		exitCh <- true
		close(results)
	}(resolver.Exit)

	arrPorts := []OsSerialPort{}
	go func(results chan *bonjour.ServiceEntry, exitCh chan<- bool) {
		for e := range results {
			arrPorts = append(arrPorts, OsSerialPort{Name: e.AddrIPv4.String(), IdProduct: e.Instance, IdVendor: strings.Join(e.Text[:], " "), NetworkPort: true})
		}
		timeout <- true
	}(results, resolver.Exit)

	err = resolver.Browse("_arduino._tcp", "", results)
	if err != nil {
		log.Println("Failed to browse:", err.Error())
		return nil, err
	}
	// wait for some kind of timeout and return arrPorts
	select {
	case <-timeout:
		return arrPorts, nil
	}
}
Ejemplo n.º 2
0
func main() {
	resolver, err := bonjour.NewResolver(nil)
	if err != nil {
		log.Println("Failed to initialize resolver:", err.Error())
		os.Exit(1)
	}

	results := make(chan *bonjour.ServiceEntry)

	t1 := time.Now()
	go func(results chan *bonjour.ServiceEntry, exitCh chan<- bool) {
		for e := range results {
			log.Printf("%s", e.Instance)
			fmt.Printf("duration: %s\n", time.Now().Sub(t1)/time.Millisecond)
			exitCh <- true
			time.Sleep(1e9)
			os.Exit(0)
		}
	}(results, resolver.Exit)

	err = resolver.Browse("_ssh._tcp", "local.", results)
	if err != nil {
		log.Println("Failed to browse:", err.Error())
	}

	select {}
}
Ejemplo n.º 3
0
func main() {
	resolver, err := bonjour.NewResolver(nil)
	if err != nil {
		log.Println("Failed to initialize resolver:", err.Error())
		os.Exit(1)
	}

	results := make(chan *bonjour.ServiceEntry)

	go func(results chan *bonjour.ServiceEntry, exitCh chan<- bool) {
		for e := range results {
			log.Printf("%s", e.Instance)
			exitCh <- true
			time.Sleep(1e9)
			os.Exit(0)
		}
	}(results, resolver.Exit)

	err = resolver.Browse("_chromecast._tcp", "local.", results)
	if err != nil {
		log.Println("Failed to browse:", err.Error())
	}

	select {}
}
Ejemplo n.º 4
0
func getPorts() ([]OsSerialPort, error) {
	resolver, err := bonjour.NewResolver(nil)
	if err != nil {
		log.Println("Failed to initialize resolver:", err.Error())
		return nil, err
	}

	results := make(chan *bonjour.ServiceEntry)

	timeout := make(chan bool, 1)
	go func(exitCh chan<- bool) {
		time.Sleep(timeoutConst * time.Second)
		exitCh <- true
		close(results)
	}(resolver.Exit)

	arrPorts := []OsSerialPort{}
	go func(results chan *bonjour.ServiceEntry, exitCh chan<- bool) {
		for e := range results {
			var boardInfosSlice []string
			for _, element := range e.Text {
				if strings.Contains(element, "board=yun") {
					boardInfosSlice = append(boardInfosSlice, "arduino:avr:yun")
				}
			}
			arrPorts = append(arrPorts, OsSerialPort{Name: e.AddrIPv4.String(), FriendlyName: e.Instance, NetworkPort: true, RelatedNames: boardInfosSlice})
		}
		timeout <- true
	}(results, resolver.Exit)

	err = resolver.Browse("_arduino._tcp", "", results)
	if err != nil {
		log.Println("Failed to browse:", err.Error())
		return nil, err
	}
	// wait for some kind of timeout and return arrPorts
	select {
	case <-timeout:
		return arrPorts, nil
	}
}
Ejemplo n.º 5
0
// mainLoop initiates all ports and handles the traffic
func mainLoop() {
	openPorts()
	defer closePorts()

	waitCh := make(chan bool)
	go func() {
		for {
			v := <-outCh
			if v && waitCh != nil {
				waitCh <- true
			}
			if !v {
				log.Println("OUT port is closed. Interrupting execution")
				exitCh <- syscall.SIGTERM
				break
			}
		}
	}()

	log.Println("Waiting for port connections to establish... ")
	select {
	case <-waitCh:
		log.Println("Output port connected")
		waitCh = nil
	case <-time.Tick(30 * time.Second):
		log.Println("Timeout: port connections were not established within provided interval")
		exitCh <- syscall.SIGTERM
		return
	}

	log.Println("Waiting for configuration IP...")
	var options *bonjour.ServiceRecord
	for {
		ip, err := inPort.RecvMessageBytes(0)
		if err != nil {
			continue
		}
		if !runtime.IsValidIP(ip) || !runtime.IsPacket(ip) {
			continue
		}
		if err = json.Unmarshal(ip[1], &options); err != nil {
			log.Println("Error decoding options:", err.Error())
			continue
		}
		inPort.Close()
		break
	}

	resolver, err = bonjour.NewResolver(nil)
	utils.AssertError(err)

	entries := make(chan *bonjour.ServiceEntry)
	err = resolver.Browse(options.Service, options.Domain, entries)
	utils.AssertError(err)

	log.Println("Started...")
	for e := range entries {
		data, err := json.Marshal(e)
		if err != nil {
			log.Println("Error encoding entry:", err.Error())
			continue
		}
		outPort.SendMessage(runtime.NewPacket(data))
	}

}