Beispiel #1
0
func main() {
	flag.Parse()

	var sock mangos.Socket
	var err error
	if sock, err = pub.NewSocket(); err != nil {
		die("can't get new pub socket: %s", err)
	}
	sock.AddTransport(ipc.NewTransport())
	sock.AddTransport(tcp.NewTransport())
	if err = sock.Listen("tcp://127.0.0.1:55555"); err != nil {
		die("can't listen on pub socket: %s", err.Error())
	}

	//sub
	var subscriber mangos.Socket

	if subscriber, err = sub.NewSocket(); err != nil {
		die("can't get new sub socket: %s", err.Error())
	}
	subscriber.AddTransport(ipc.NewTransport())
	subscriber.AddTransport(tcp.NewTransport())
	if err = subscriber.Dial("tcp://127.0.0.1:55555"); err != nil {
		die("can't dial on sub socket: %s", err.Error())
	}
	// Empty byte array effectively subscribes to everything
	err = subscriber.SetOption(mangos.OptionSubscribe, []byte(""))

	start := time.Now()

	//var msg []byte
	for i := 1; i <= *numbPtr; i++ {
		//conn.Publish("test", []byte(randSeq(320)))
		sock.Send([]byte(randSeq(320)))

		if _, err = subscriber.Recv(); err != nil {
			die("Cannot recv: %s", err.Error())
		}

		//log.Println(string(msg))
		/*
			runtime.Gosched()
			atomic.AddUint64(&ops, 1)
			if ops == uint64(*numbPtr) {
				elapsed := time.Since(start)
				log.Printf("Time took %s", elapsed)
			}
		*/
	}

	elapsed := time.Since(start)
	log.Printf("Time took %s", elapsed)

	defer sock.Close()

	fmt.Scanln()
}
Beispiel #2
0
func server(url string) {
	var sock mangos.Socket
	var err error
	var msg []byte
	if sock, err = surveyor.NewSocket(); err != nil {
		die("can't get new surveyor socket: %s", err)
	}
	sock.AddTransport(ipc.NewTransport())
	sock.AddTransport(tcp.NewTransport())
	if err = sock.Listen(url); err != nil {
		die("can't listen on surveyor socket: %s", err.Error())
	}
	err = sock.SetOption(mangos.OptionSurveyTime, time.Second*2)
	if err != nil {
		die("SetOption(): %s", err.Error())
	}
	for {
		fmt.Println("SERVER: SENDING DATE SURVEY REQUEST")
		if err = sock.Send([]byte("DATE")); err != nil {
			die("Failed sending survey: %s", err.Error())
		}
		for {
			if msg, err = sock.Recv(); err != nil {
				break
			}
			fmt.Printf("SERVER: RECEIVED \"%s\" SURVEY RESPONSE\n",
				string(msg))
		}
	}
}
Beispiel #3
0
func client(url string, name string) {
	var sock mangos.Socket
	var err error
	var msg []byte

	if sock, err = respondent.NewSocket(); err != nil {
		die("can't get new respondent socket: %s", err.Error())
	}
	sock.AddTransport(ipc.NewTransport())
	sock.AddTransport(tcp.NewTransport())
	if err = sock.Dial(url); err != nil {
		die("can't dial on respondent socket: %s", err.Error())
	}
	for {
		if msg, err = sock.Recv(); err != nil {
			die("Cannot recv: %s", err.Error())
		}
		fmt.Printf("CLIENT(%s): RECEIVED \"%s\" SURVEY REQUEST\n",
			name, string(msg))

		d := date()
		fmt.Printf("CLIENT(%s): SENDING DATE SURVEY RESPONSE\n", name)
		if err = sock.Send([]byte(d)); err != nil {
			die("Cannot send: %s", err.Error())
		}
	}
}
Beispiel #4
0
func NewPublisher(ctx context.Context, url string) (*Publisher, error) {
	var sock mangos.Socket
	var err error

	sock, err = pub.NewSocket()
	if err != nil {
		return nil, err
	}
	sock.AddTransport(ipc.NewTransport())
	sock.AddTransport(tcp.NewTransport())

	err = sock.Listen(url)
	if err != nil {
		return nil, err
	}

	publiser := &Publisher{
		ctx:  ctx,
		url:  url,
		sock: sock,

		publishCh: make(chan []string),
	}

	go publiser.run()
	return publiser, nil
}
Beispiel #5
0
func testDevLoop(t *testing.T, addr string) {
	s1, err := pair.NewSocket()
	if err != nil {
		t.Errorf("Failed to open S1: %v", err)
		return
	}
	defer s1.Close()
	s1.AddTransport(tcp.NewTransport())
	s1.AddTransport(ipc.NewTransport())
	s1.AddTransport(inproc.NewTransport())
	s1.AddTransport(tlstcp.NewTransport())
	s1.AddTransport(ws.NewTransport())
	s1.AddTransport(wss.NewTransport())

	options := make(map[string]interface{})
	if strings.HasPrefix(addr, "wss://") || strings.HasPrefix(addr, "tls+tcp://") {
		options[mangos.OptionTlsConfig] = srvCfg
	}

	if err := s1.ListenOptions(addr, options); err != nil {
		t.Errorf("Failed listening to %s: %v", addr, err)
		return
	}

	if err := mangos.Device(s1, s1); err != nil {
		t.Errorf("Device failed: %v", err)
		return
	}

	RunTests(t, addr, deviceCaseClient())
}
Beispiel #6
0
func client(url string, name string) {
	var sock mangos.Socket
	var err error
	var msg []byte

	if sock, err = sub.NewSocket(); err != nil {
		die("can't get new sub socket: %s", err.Error())
	}
	sock.AddTransport(ipc.NewTransport())
	sock.AddTransport(tcp.NewTransport())
	if err = sock.Dial(url); err != nil {
		die("can't dial on sub socket: %s", err.Error())
	}
	// Empty byte array effectively subscribes to everything
	err = sock.SetOption(mangos.OptionSubscribe, []byte(""))
	if err != nil {
		die("cannot subscribe: %s", err.Error())
	}
	for {
		if msg, err = sock.Recv(); err != nil {
			die("Cannot recv: %s", err.Error())
		}
		fmt.Printf("CLIENT(%s): RECEIVED %s\n", name, string(msg))
	}
}
Beispiel #7
0
func NewSubscriber(ctx context.Context, url string) (*Subscriber, error) {
	var sock mangos.Socket
	var err error

	sock, err = sub.NewSocket()
	if err != nil {
		return nil, err
	}
	sock.AddTransport(ipc.NewTransport())
	sock.AddTransport(tcp.NewTransport())

	err = sock.Dial(url)
	if err != nil {
		return nil, err
	}
	// subscribes to everything
	err = sock.SetOption(mangos.OptionSubscribe, []byte(""))
	if err != nil {
		return nil, err
	}

	subscriber := &Subscriber{
		url:     url,
		ctx:     ctx,
		sock:    sock,
		changes: make(chan []string, 8),
	}

	go subscriber.run()
	return subscriber, nil
}
Beispiel #8
0
func server(url string, nworkers int) {
	var sock mangos.Socket
	var err error
	var wg sync.WaitGroup

	rand.Seed(time.Now().UnixNano())

	if sock, err = rep.NewSocket(); err != nil {
		die("can't get new rep socket: %s", err)
	}
	if err = sock.SetOption(mangos.OptionRaw, true); err != nil {
		die("can't set raw mode: %s", err)
	}
	sock.AddTransport(ipc.NewTransport())
	sock.AddTransport(tcp.NewTransport())
	if err = sock.Listen(url); err != nil {
		die("can't listen on rep socket: %s", err.Error())
	}
	wg.Add(nworkers)
	fmt.Printf("Starting %d workers\n", nworkers)
	for id := 0; id < nworkers; id++ {
		go func(id int) {
			defer wg.Done()
			serverWorker(sock, id)
		}(id)
	}
	wg.Wait()
}
Beispiel #9
0
func node0(url string) {
	var sock mangos.Socket
	var err error
	var msg []byte
	if sock, err = rep.NewSocket(); err != nil {
		die("can't get new rep socket: %s", err)
	}
	sock.AddTransport(ipc.NewTransport())
	sock.AddTransport(tcp.NewTransport())
	if err = sock.Listen(url); err != nil {
		die("can't listen on rep socket: %s", err.Error())
	}
	for {
		// Could also use sock.RecvMsg to get header
		msg, err = sock.Recv()
		if string(msg) == "DATE" { // no need to terminate
			fmt.Println("NODE0: RECEIVED DATE REQUEST")
			d := date()
			fmt.Printf("NODE0: SENDING DATE %s\n", d)
			err = sock.Send([]byte(d))
			if err != nil {
				die("can't send reply: %s", err.Error())
			}
		}
	}
}
Beispiel #10
0
// AddTransports adds all known transports to the given socket.
func AddTransports(sock mangos.Socket) {
	sock.AddTransport(tcp.NewTransport())
	sock.AddTransport(inproc.NewTransport())
	sock.AddTransport(ipc.NewTransport())
	sock.AddTransport(tlstcp.NewTransport())
	sock.AddTransport(ws.NewTransport())
	sock.AddTransport(wss.NewTransport())
}
Beispiel #11
0
func testDevChain(t *testing.T, addr1 string, addr2 string, addr3 string) {
	// This tests using multiple devices across a few transports.
	// It looks like this:  addr1->addr2->addr3 <==> addr3->addr2->addr1
	var err error
	s := make([]mangos.Socket, 5)
	for i := 0; i < 5; i++ {
		if s[i], err = pair.NewSocket(); err != nil {
			t.Errorf("Failed to open S1_1: %v", err)
			return
		}
		defer s[i].Close()
		s[i].AddTransport(tcp.NewTransport())
		s[i].AddTransport(inproc.NewTransport())
		s[i].AddTransport(tlstcp.NewTransport())
		s[i].AddTransport(ipc.NewTransport())
		s[i].AddTransport(ws.NewTransport())
	}

	if err = s[0].Listen(addr1); err != nil {
		t.Errorf("s[0] Listen: %v", err)
		return
	}
	if err = s[1].Dial(addr2); err != nil {
		t.Errorf("s[1] Dial: %v", err)
		return
	}
	if err = s[2].Listen(addr2); err != nil {
		t.Errorf("s[2] Listen: %v", err)
		return
	}
	if err = s[3].Dial(addr3); err != nil {
		t.Errorf("s[3] Dial: %v", err)
		return
	}
	if err = s[4].Listen(addr3); err != nil {
		t.Errorf("s[4] Listen: %v", err)
		return
	}
	if err = mangos.Device(s[0], s[1]); err != nil {
		t.Errorf("s[0],s[1] Device: %v", err)
		return
	}
	if err = mangos.Device(s[2], s[3]); err != nil {
		t.Errorf("s[2],s[3] Device: %v", err)
		return
	}
	if err = mangos.Device(s[4], nil); err != nil {
		t.Errorf("s[4] Device: %v", err)
		return
	}
	RunTests(t, addr1, deviceCaseClient())
}
Beispiel #12
0
func node0(url string) {
	var sock mangos.Socket
	var err error
	if sock, err = pair.NewSocket(); err != nil {
		die("can't get new pair socket: %s", err)
	}
	sock.AddTransport(ipc.NewTransport())
	sock.AddTransport(tcp.NewTransport())
	if err = sock.Listen(url); err != nil {
		die("can't listen on pair socket: %s", err.Error())
	}
	send_recv(sock, "node0")
}
Beispiel #13
0
func Server(urlServer string, urlPubSub string, opt Options) (*DiscoveryServer, error) {
	var sock mangos.Socket
	var err error
	var publisher *Publisher

	ctx, cancel := context.WithCancel(context.Background())

	sock, err = surveyor.NewSocket()
	if err != nil {
		return nil, err
	}

	sock.AddTransport(ipc.NewTransport())
	sock.AddTransport(tcp.NewTransport())

	err = sock.Listen(urlServer)
	if err != nil {
		return nil, err
	}
	err = sock.SetOption(mangos.OptionSurveyTime, opt.SurveyTime)
	if err != nil {
		return nil, err
	}
	err = sock.SetOption(mangos.OptionRecvDeadline, opt.RecvDeadline)
	if err != nil {
		return nil, err
	}

	pubCtx, pubCancel := context.WithCancel(ctx)
	publisher, err = NewPublisher(pubCtx, urlPubSub)
	if err != nil {
		pubCancel()
		return nil, err
	}
	services := NewServices(publisher)

	server := &DiscoveryServer{
		services: services,

		urlServer: urlServer,
		urlPubSub: urlPubSub,
		opt:       opt,

		ctx:    ctx,
		cancel: cancel,
		sock:   sock,
	}

	go server.run()
	return server, nil
}
Beispiel #14
0
func node1(url string) {
	var sock mangos.Socket
	var err error

	if sock, err = pair.NewSocket(); err != nil {
		die("can't get new pair socket: %s", err.Error())
	}
	sock.AddTransport(ipc.NewTransport())
	sock.AddTransport(tcp.NewTransport())
	if err = sock.Dial(url); err != nil {
		die("can't dial on pair socket: %s", err.Error())
	}
	sendRecv(sock, "node1")
}
Beispiel #15
0
func node0(url string) {
	var sock mangos.Socket
	var err error
	var msg []byte
	if sock, err = pull.NewSocket(); err != nil {
		die("can't get new pull socket: %s", err)
	}
	sock.AddTransport(ipc.NewTransport())
	sock.AddTransport(tcp.NewTransport())
	if err = sock.Listen(url); err != nil {
		die("can't listen on pull socket: %s", err.Error())
	}
	for {
		// Could also use sock.RecvMsg to get header
		msg, err = sock.Recv()
		fmt.Printf("NODE0: RECEIVED \"%s\"\n", msg)
	}
}
Beispiel #16
0
func node1(url string, msg string) {
	var sock mangos.Socket
	var err error

	if sock, err = push.NewSocket(); err != nil {
		die("can't get new push socket: %s", err.Error())
	}
	sock.AddTransport(ipc.NewTransport())
	sock.AddTransport(tcp.NewTransport())
	if err = sock.Dial(url); err != nil {
		die("can't dial on push socket: %s", err.Error())
	}
	fmt.Printf("NODE1: SENDING \"%s\"\n", msg)
	if err = sock.Send([]byte(msg)); err != nil {
		die("can't send message on push socket: %s", err.Error())
	}
	sock.Close()
}
Beispiel #17
0
func main() {
	how_rand := flag.Bool("rand", false, "")
	flag.Parse()
	if flag.NArg() < 1 {
		log.Fatal("Missing arguments: at least one endpoint to bind to")
	}

	var err error
	var out mangos.Socket
	if out, err = push.NewSocket(); err != nil {
		log.Fatal("Nanomsg socket creation failure: ", err)
	} else {
		defer out.Close()
		out.AddTransport(ipc.NewTransport())
		out.AddTransport(tcp.NewTransport())
		out.SetOption(mangos.OptionWriteQLen, 16)
		out.SetOption(mangos.OptionRetryTime, 0)
		for i := 0; i < flag.NArg(); i++ {
			if err := out.Listen(flag.Arg(i)); err != nil {
				log.Fatal("Nanomsg listen() error: ", err)
			}
		}
	}

	switch {
	case *how_rand:
		Gen(out, func(tab []string) string {
			if len(tab) <= 0 {
				return ""
			}
			return tab[rand.Intn(len(tab))]
		})
	default:
		i := 0
		Gen(out, func(tab []string) string {
			if len(tab) <= 0 {
				return ""
			}
			i = (i + 1) % len(tab)
			return tab[i]
		})
	}
}
Beispiel #18
0
func MakeFront(server *Server, concurrency int, config string) (*Front, error) {

	tokens := strings.Split(config, ",")
	if len(tokens) < 2 {
		return nil, BadFront
	}

	self := &Front{}

	// Prepare the front TCP socket
	if url, err := net.ResolveTCPAddr("tcp", tokens[0]); err != nil {
		return nil, err
	} else if ep, err := net.ListenTCP("tcp", url); err != nil {
		return nil, err
	} else {
		self.endpoint = ep
	}

	// Prepare the Nanomsg feeder
	if nn, err := pull.NewSocket(); err != nil {
		self.endpoint.Close()
		return nil, err
	} else {
		self.feeder = nn
		self.feeder.AddTransport(ipc.NewTransport())
		self.feeder.AddTransport(tcp.NewTransport())
		self.feeder.SetOption(mangos.OptionReadQLen, 16)
	}
	for i := 1; i < len(tokens); i++ {
		self.feeder.Dial(tokens[i])
	}

	// Eventually, finalize the structure
	self.server = server
	self.tokens = make(chan bool, concurrency)
	for ; concurrency > 0; concurrency-- {
		self.tokens <- true
	}

	return self, nil
}
Beispiel #19
0
func server(url string) {
	var sock mangos.Socket
	var err error
	if sock, err = pub.NewSocket(); err != nil {
		die("can't get new pub socket: %s", err)
	}
	sock.AddTransport(ipc.NewTransport())
	sock.AddTransport(tcp.NewTransport())
	if err = sock.Listen(url); err != nil {
		die("can't listen on pub socket: %s", err.Error())
	}
	for {
		// Could also use sock.RecvMsg to get header
		d := date()
		fmt.Printf("SERVER: PUBLISHING DATE %s\n", d)
		if err = sock.Send([]byte(d)); err != nil {
			die("Failed publishing: %s", err.Error())
		}
		time.Sleep(time.Second)
	}
}
Beispiel #20
0
func ClientWithSub(urlServer string, urlPubSub string, service string) (*DiscoveryClient, error) {
	var sock mangos.Socket
	var err error
	var subscriber *Subscriber

	ctx, cancel := context.WithCancel(context.Background())

	if urlPubSub != "" {
		subCtx, _ := context.WithCancel(ctx)
		subscriber, err = NewSubscriber(subCtx, urlPubSub)
		if err != nil {
			return nil, err
		}
	}

	sock, err = respondent.NewSocket()
	if err != nil {
		return nil, err
	}

	sock.AddTransport(ipc.NewTransport())
	sock.AddTransport(tcp.NewTransport())
	err = sock.Dial(urlServer)
	if err != nil {
		return nil, err
	}

	client := &DiscoveryClient{
		urlServer:  urlServer,
		urlPubSub:  urlPubSub,
		service:    service,
		ctx:        ctx,
		cancel:     cancel,
		sock:       sock,
		subscriber: subscriber,
	}

	go client.run()
	return client, nil
}
Beispiel #21
0
func node(args []string) {
	var sock mangos.Socket
	var err error
	var msg []byte
	var x int

	if sock, err = bus.NewSocket(); err != nil {
		die("bus.NewSocket: %s", err)
	}
	sock.AddTransport(ipc.NewTransport())
	sock.AddTransport(tcp.NewTransport())
	if err = sock.Listen(args[2]); err != nil {
		die("sock.Listen: %s", err.Error())
	}

	// wait for everyone to start listening
	time.Sleep(time.Second)
	for x = 3; x < len(args); x++ {
		if err = sock.Dial(args[x]); err != nil {
			die("socket.Dial: %s", err.Error())
		}
	}

	// wait for everyone to join
	time.Sleep(time.Second)

	fmt.Printf("%s: SENDING '%s' ONTO BUS\n", args[1], args[1])
	if err = sock.Send([]byte(args[1])); err != nil {
		die("sock.Send: %s", err.Error())
	}
	for {
		if msg, err = sock.Recv(); err != nil {
			die("sock.Recv: %s", err.Error())
		}
		fmt.Printf("%s: RECEIVED \"%s\" FROM BUS\n", args[1],
			string(msg))

	}
}
func (receiver *SPReceiver) Receive(address string) error {
	var sock mangos.Socket
	var err error

	if sock, err = rep.NewSocket(); err != nil {
		return err
	}

	sock.AddTransport(ipc.NewTransport())
	sock.AddTransport(tcp.NewTransport())
	if err := sock.Listen(address); err != nil {
		return err
	}

	for {
		if _, err := sock.Recv(); err != nil {
			return err
		}
	}

	return nil
}
Beispiel #23
0
func clientWorker(url string, id int) {
	var sock mangos.Socket
	var m *mangos.Message
	var err error

	if sock, err = req.NewSocket(); err != nil {
		die("can't get new req socket: %s", err.Error())
	}

	// Leave this in Cooked mode!

	sock.AddTransport(ipc.NewTransport())
	sock.AddTransport(tcp.NewTransport())
	if err = sock.Dial(url); err != nil {
		die("can't dial on req socket: %s", err.Error())
	}

	// send an empty messsage
	m = mangos.NewMessage(1)
	if err = sock.SendMsg(m); err != nil {
		die("can't send request: %s", err.Error())
	}

	if m, err = sock.RecvMsg(); err != nil {
		die("can't recv reply: %s", err.Error())
	}
	sock.Close()

	if len(m.Body) != 4 {
		die("bad response len: %d", len(m.Body))
	}

	worker := binary.BigEndian.Uint32(m.Body[0:])

	L.Lock()
	fmt.Printf("Client: %4d   Server: %4d\n", id, worker)
	L.Unlock()
}
Beispiel #24
0
func node1(url string) {
	var sock mangos.Socket
	var err error
	var msg []byte

	if sock, err = req.NewSocket(); err != nil {
		die("can't get new req socket: %s", err.Error())
	}
	sock.AddTransport(ipc.NewTransport())
	sock.AddTransport(tcp.NewTransport())
	if err = sock.Dial(url); err != nil {
		die("can't dial on req socket: %s", err.Error())
	}
	fmt.Printf("NODE1: SENDING DATE REQUEST %s\n", "DATE")
	if err = sock.Send([]byte("DATE")); err != nil {
		die("can't send message on push socket: %s", err.Error())
	}
	if msg, err = sock.Recv(); err != nil {
		die("can't receive date: %s", err.Error())
	}
	fmt.Printf("NODE1: RECEIVED DATE %s\n", string(msg))
	sock.Close()
}