func StartZeromqProtobufTest(address string, clients int, requestsPerClient int, messageSize int, timer metrics.Timer, requestSize *int) func(wg *sync.WaitGroup) {
	return func(wg *sync.WaitGroup) {
		var socket *zmq.Socket
		var err error
		var request []byte

		if socket, err = zmq.NewSocket(zmq.REQ); err != nil {
			log.Fatal(err)
		}

		defer socket.Close()
		defer wg.Done()

		if err = socket.Connect("tcp://" + address); err != nil {
			log.Fatal(err)
		}

		if request, err = proto.Marshal(&pb.Request{
			Method:  "TEST",
			Payload: strings.Repeat("a", messageSize),
		}); err != nil {
			log.Fatal(err)
		}

		*requestSize = len(request)

		for i := 0; i < requestsPerClient; i++ {
			timer.Time(func() {
				socket.SendBytes(request, 0)

				socket.Recv(0)
			})
		}
	}
}
Ejemplo n.º 2
0
func New(serverid int, filename string) Servernode {

	var data serverlist
	content, err := ioutil.ReadFile(filename)
	if err != nil {
		panic(err)
	}

	err = json.Unmarshal(content, &data)
	if err != nil {
		panic("Error parsing json File")
	}

	mapofservers = make(map[int]int)
	for i := 0; i < len(data.RunningServer); i++ {

		mapofservers[data.RunningServer[i].Serverid] = data.RunningServer[i].Portno
	}

	var s Servernode
	s.peers = make(map[int]int)
	s.peersocks = make(map[int]*zmq.Socket)
	_, exist := mapofservers[serverid]
	if exist != true {
		panic("Error in creation of new server instance")
	}
	s.sid = serverid
	s.pid = mapofservers[serverid]
	s.outbox = make(chan *Envelope)
	s.inbox = make(chan *Envelope)
	var responder *zmq.Socket
	var requester *zmq.Socket

	for id, port := range mapofservers {
		if id == serverid {
			responder, err = zmq.NewSocket(zmq.PULL)
			s.Ownsocks = responder
			responder.Bind("tcp://*:" + strconv.Itoa(port))

			if err != nil {
				panic("Problem Binding Server")
			}
		} else {
			requester, err = zmq.NewSocket(zmq.PUSH)
			if err != nil {
				panic("Problem Binding Server")
			}
			requester.Connect("tcp://localhost:" + strconv.Itoa(port))
			s.peers[id] = port
			s.peersocks[port] = requester
		}
	}
	go s.SendMessage()
	go s.RecieveMessage(responder)
	return s
}
Ejemplo n.º 3
0
func applyZMQConfig(socket *zmq.Socket, configs []ZMQConfig) {
	for _, config := range configs {
		switch config.Type {
		case "bind":
			socket.Bind(config.Uri)
		case "connect":
			socket.Connect(config.Uri)
		}
	}
}
Ejemplo n.º 4
0
// main entry point for data writer
func main() {
	var err error
	var writerSocket *zmq4.Socket
	var eventSubSocket *zmq4.Socket

	fog.Info("program starts")

	if writerSocket, err = createWriterSocket(); err != nil {
		fog.Critical("createWriterSocket %s", err)
	}
	defer writerSocket.Close()

	fog.Info("binding writer socket to %s", dataWriterAddress)
	if err = writerSocket.Bind(dataWriterAddress); err != nil {
		fog.Critical("Bind(%s) %s", dataWriterAddress, err)
	}

	if eventSubSocket, err = createEventSubSocket(); err != nil {
		fog.Critical("createEventSubSocket %s", err)
	}
	defer eventSubSocket.Close()

	fog.Info("connecting event sub socket to %s", eventAggregatorPubAddress)
	if err = eventSubSocket.Connect(eventAggregatorPubAddress); err != nil {
		fog.Critical("Connect(%s) %s", eventAggregatorPubAddress, err)
	}

	messageChan := NewMessageHandler()

	reactor := zmq4.NewReactor()
	reactor.AddChannel(tools.NewSignalWatcher(), 1, tools.SigtermHandler)
	reactor.AddSocket(writerSocket, zmq4.POLLIN,
		NewWriterSocketHandler(writerSocket, messageChan))
	reactor.AddSocket(eventSubSocket, zmq4.POLLIN,
		NewEventSubSocketHandler(eventSubSocket))

	fog.Debug("starting reactor.Run")
	reactor.SetVerbose(true)
	err = reactor.Run(reactorPollingInterval)
	if err == tools.SigtermError {
		fog.Info("program terminates normally due to SIGTERM")
	} else if errno, ok := err.(syscall.Errno); ok {
		// we can get 'interrupted system call' if we get SIGTERM while
		// a socket is waiting on a read. That's not too bad.
		if errno == syscall.EINTR {
			fog.Warn("reactor.Run returns '%s' assuming SIGTERM", errno)
		} else {
			fog.Error("reactor.Run returns %T '%s'", errno, errno)
		}
	} else {
		fog.Error("reactor.Run returns %T %s", err, err)
	}
}
Ejemplo n.º 5
0
func TestPairTcp(t *testing.T) {

	var sb, sc *zmq.Socket

	defer func() {
		for _, s := range []*zmq.Socket{sb, sc} {
			if s != nil {
				s.SetLinger(0)
				s.Close()
			}
		}
	}()

	sb, err := zmq.NewSocket(zmq.PAIR)
	if err != nil {
		t.Fatal("NewSocket:", err)
	}

	err = sb.Bind("tcp://127.0.0.1:9736")
	if err != nil {
		t.Fatal("sb.Bind:", err)
	}

	sc, err = zmq.NewSocket(zmq.PAIR)
	if err != nil {
		t.Fatal("NewSocket:", err)
	}

	err = sc.Connect("tcp://127.0.0.1:9736")
	if err != nil {
		t.Fatal("sc.Connect:", err)
	}

	msg, err := bounce(sb, sc)

	if err != nil {
		t.Error(msg, err)
	}

	err = sc.Close()
	sc = nil
	if err != nil {
		t.Error("sc.Close:", err)
	}

	err = sb.Close()
	sb = nil
	if err != nil {
		t.Error("sb.Close:", err)
	}
}
Ejemplo n.º 6
0
func NewReplyHandler() chan<- *ReplyMessage {
	replyChan := make(chan *ReplyMessage, replyChanCapacity)
	pushSockets := make(map[string]*zmq4.Socket)

	go func() {
		for replyMessage := range replyChan {

			marshalledReply, err := json.Marshal(replyMessage.Content)
			if err != nil {
				fog.Error("unable to marshall reply %s %s", replyMessage, err)
				continue
			}

			var pushSocket *zmq4.Socket
			var ok bool
			pushSocket, ok = pushSockets[replyMessage.ClientAddress]
			if !ok {
				fog.Info("creating PUSH socket to %s", replyMessage.ClientAddress)
				if pushSocket, err = createPushSocket(); err != nil {
					fog.Error("Unable to create PUSH socket for %s %s",
						replyMessage.ClientAddress, err)
					continue
				}
				if err = pushSocket.Connect(replyMessage.ClientAddress); err != nil {
					fog.Error("Unable to Connect PUSH socket to %s %s",
						replyMessage.ClientAddress, err)
					pushSocket.Close()
					continue
				}
				pushSockets[replyMessage.ClientAddress] = pushSocket
			}

			if _, err = pushSocket.SendMessage(marshalledReply); err != nil {
				fog.Error("pushSocket SendMessage to %s failed %s",
					replyMessage.ClientAddress, err)
				pushSocket.Close()
				delete(pushSockets, replyMessage.ClientAddress)
				continue
			}
		}

	}()

	return replyChan
}
Ejemplo n.º 7
0
// Add adds a new sink channel for messages of topic `topic`
func (r *Router) Add(topic string, sink chan<- []byte) error {
	var err error
	var socket *zmq.Socket

	socket, err = r.ctx.NewSocket(zmq.SUB)
	if err != nil {
		return err
	}
	if err = socket.Connect(r.addr); err != nil {
		return err
	}
	if err = socket.SetSubscribe(topic); err != nil {
		return err
	}
	r.poller.Add(socket, zmq.POLLIN)
	r.receivers[socket] = &receiver{sink: sink}
	return nil
}
Ejemplo n.º 8
0
func ApplyZeroMQConfigs(socket *zmq.Socket, configs []*ZeroMQConfig) (err error) {
	for _, config := range configs {
		switch config.Mode {
		case "connect":
			err = socket.Connect(config.URI)
		case "bind":
			err = socket.Bind(config.URI)
		default:
			err = errUnknownZeroMQMode
		}

		if err != nil {
			return
		}
	}

	return
}
Ejemplo n.º 9
0
func (c *WorkerConnection) handleConnectionRequest(socket *zmq.Socket, request *connectionRequest) {
	c.connectionLock.Lock()
	defer c.connectionLock.Unlock()
	if request.connect {
		if err := socket.Connect(request.endpoint); err != nil {
			log.Printf("Failed to connect to endpoint %s: %s\n", request.endpoint, err)
			c.connectionResultChan <- err
		} else {
			c.endpoints[request.endpoint] = true
		}
	} else {
		if err := socket.Connect(request.endpoint); err != nil {
			log.Printf("Failed to disconnect from endpoint %s: %s\n", request.endpoint, err)
			c.connectionResultChan <- err
		} else {
			delete(c.endpoints, request.endpoint)
		}
	}
	c.connectionResultChan <- nil
}
Ejemplo n.º 10
0
func TestSecurityCurve(t *testing.T) {

	time.Sleep(100 * time.Millisecond)

	var handler, server, client *zmq.Socket
	defer func() {
		for _, s := range []*zmq.Socket{handler} {
			if s != nil {
				s.SetLinger(0)
				s.Close()
			}
		}
	}()

	if _, minor, _ := zmq.Version(); minor >= 1 && !zmq.HasCurve() {
		t.Skip("Curve not available")
	}

	//  Generate new keypairs for this test
	client_public, client_secret, err := zmq.NewCurveKeypair()
	if err != nil {
		t.Fatal("NewCurveKeypair:", err)
	}
	server_public, server_secret, err := zmq.NewCurveKeypair()
	if err != nil {
		t.Fatal("NewCurveKeypair:", err)
	}

	handler, err = zmq.NewSocket(zmq.REP)
	if err != nil {
		t.Fatal("NewSocket:", err)
	}
	err = handler.Bind("inproc://zeromq.zap.01")
	if err != nil {
		t.Fatal("handler.Bind:", err)
	}

	doHandler := func(state zmq.State) error {
		msg, err := handler.RecvMessage(0)
		if err != nil {
			return err //  Terminating
		}
		version := msg[0]
		sequence := msg[1]
		// domain := msg[2]
		// address := msg[3]
		identity := msg[4]
		mechanism := msg[5]
		client_key := msg[6]
		client_key_text := zmq.Z85encode(client_key)

		if version != "1.0" {
			return errors.New("version != 1.0")
		}
		if mechanism != "CURVE" {
			return errors.New("mechanism != CURVE")
		}
		if identity != "IDENT" {
			return errors.New("identity != IDENT")
		}

		if client_key_text == client_public {
			handler.SendMessage(version, sequence, "200", "OK", "anonymous", "")
		} else {
			handler.SendMessage(version, sequence, "400", "Invalid client public key", "", "")
		}
		return nil
	}

	doQuit := func(i interface{}) error {
		err := handler.Close()
		handler = nil
		if err != nil {
			t.Error("handler.Close:", err)
		}
		return errors.New("Quit")
	}
	quit := make(chan interface{})

	reactor := zmq.NewReactor()
	reactor.AddSocket(handler, zmq.POLLIN, doHandler)
	reactor.AddChannel(quit, 0, doQuit)
	go func() {
		reactor.Run(100 * time.Millisecond)
		quit <- true
	}()
	defer func() {
		quit <- true
		<-quit
		close(quit)
	}()

	//  Server socket will accept connections
	server, err = zmq.NewSocket(zmq.DEALER)
	if err != nil {
		t.Fatal("NewSocket:", err)
	}
	err = server.SetCurveServer(1)
	if err != nil {
		t.Fatal("server.SetCurveServer(1):", err)
	}
	err = server.SetCurveSecretkey(server_secret)
	if err != nil {
		t.Fatal("server.SetCurveSecretkey:", err)
	}
	err = server.SetIdentity("IDENT")
	if err != nil {
		t.Fatal("server.SetIdentity:", err)
	}
	server.Bind("tcp://127.0.0.1:9998")
	if err != nil {
		t.Fatal("server.Bind:", err)
	}

	err = server.SetRcvtimeo(time.Second)
	if err != nil {
		t.Fatal("server.SetRcvtimeo:", err)
	}

	//  Check CURVE security with valid credentials
	client, err = zmq.NewSocket(zmq.DEALER)
	if err != nil {
		t.Fatal("NewSocket:", err)
	}
	err = client.SetCurveServerkey(server_public)
	if err != nil {
		t.Fatal("client.SetCurveServerkey:", err)
	}
	err = client.SetCurvePublickey(client_public)
	if err != nil {
		t.Fatal("client.SetCurvePublickey:", err)
	}
	err = client.SetCurveSecretkey(client_secret)
	if err != nil {
		t.Fatal("client.SetCurveSecretkey:", err)
	}
	err = client.Connect("tcp://127.0.0.1:9998")
	if err != nil {
		t.Fatal("client.Connect:", err)
	}
	msg, err := bounce(server, client)
	if err != nil {
		t.Error(msg, err)
	}
	err = client.Close()
	client = nil
	if err != nil {
		t.Fatal("client.Close:", err)
	}

	time.Sleep(100 * time.Millisecond)

	//  Check CURVE security with a garbage server key
	//  This will be caught by the curve_server class, not passed to ZAP
	garbage_key := "0000111122223333444455556666777788889999"
	client, err = zmq.NewSocket(zmq.DEALER)
	if err != nil {
		t.Fatal("NewSocket:", err)
	}
	err = client.SetCurveServerkey(garbage_key)
	if err != nil {
		t.Fatal("client.SetCurveServerkey:", err)
	}
	err = client.SetCurvePublickey(client_public)
	if err != nil {
		t.Fatal("client.SetCurvePublickey:", err)
	}
	err = client.SetCurveSecretkey(client_secret)
	if err != nil {
		t.Fatal("client.SetCurveSecretkey:", err)
	}
	err = client.Connect("tcp://127.0.0.1:9998")
	if err != nil {
		t.Fatal("client.Connect:", err)
	}
	err = client.SetRcvtimeo(time.Second)
	if err != nil {
		t.Fatal("client.SetRcvtimeo:", err)
	}
	_, err = bounce(server, client)
	if err == nil {
		t.Error("Expected failure, got success")
	}
	client.SetLinger(0)
	err = client.Close()
	client = nil
	if err != nil {
		t.Fatal("client.Close:", err)
	}

	time.Sleep(100 * time.Millisecond)

	//  Check CURVE security with a garbage client secret key
	//  This will be caught by the curve_server class, not passed to ZAP
	client, err = zmq.NewSocket(zmq.DEALER)
	if err != nil {
		t.Fatal("NewSocket:", err)
	}
	err = client.SetCurveServerkey(server_public)
	if err != nil {
		t.Fatal("client.SetCurveServerkey:", err)
	}
	err = client.SetCurvePublickey(garbage_key)
	if err != nil {
		t.Fatal("client.SetCurvePublickey:", err)
	}
	err = client.SetCurveSecretkey(client_secret)
	if err != nil {
		t.Fatal("client.SetCurveSecretkey:", err)
	}
	err = client.Connect("tcp://127.0.0.1:9998")
	if err != nil {
		t.Fatal("client.Connect:", err)
	}
	err = client.SetRcvtimeo(time.Second)
	if err != nil {
		t.Fatal("client.SetRcvtimeo:", err)
	}
	_, err = bounce(server, client)
	if err == nil {
		t.Error("Expected failure, got success")
	}
	client.SetLinger(0)
	err = client.Close()
	client = nil
	if err != nil {
		t.Fatal("client.Close:", err)
	}

	time.Sleep(100 * time.Millisecond)

	//  Check CURVE security with a garbage client secret key
	//  This will be caught by the curve_server class, not passed to ZAP
	client, err = zmq.NewSocket(zmq.DEALER)
	if err != nil {
		t.Fatal("NewSocket:", err)
	}
	err = client.SetCurveServerkey(server_public)
	if err != nil {
		t.Fatal("client.SetCurveServerkey:", err)
	}
	err = client.SetCurvePublickey(client_public)
	if err != nil {
		t.Fatal("client.SetCurvePublickey:", err)
	}
	err = client.SetCurveSecretkey(garbage_key)
	if err != nil {
		t.Fatal("client.SetCurveSecretkey:", err)
	}
	err = client.Connect("tcp://127.0.0.1:9998")
	if err != nil {
		t.Fatal("client.Connect:", err)
	}
	err = client.SetRcvtimeo(time.Second)
	if err != nil {
		t.Fatal("client.SetRcvtimeo:", err)
	}
	_, err = bounce(server, client)
	if err == nil {
		t.Error("Expected failure, got success")
	}
	client.SetLinger(0)
	err = client.Close()
	client = nil
	if err != nil {
		t.Fatal("client.Close:", err)
	}

	time.Sleep(100 * time.Millisecond)

	//  Check CURVE security with bogus client credentials
	//  This must be caught by the ZAP handler

	bogus_public, bogus_secret, _ := zmq.NewCurveKeypair()
	client, err = zmq.NewSocket(zmq.DEALER)
	if err != nil {
		t.Fatal("NewSocket:", err)
	}
	err = client.SetCurveServerkey(server_public)
	if err != nil {
		t.Fatal("client.SetCurveServerkey:", err)
	}
	err = client.SetCurvePublickey(bogus_public)
	if err != nil {
		t.Fatal("client.SetCurvePublickey:", err)
	}
	err = client.SetCurveSecretkey(bogus_secret)
	if err != nil {
		t.Fatal("client.SetCurveSecretkey:", err)
	}
	err = client.Connect("tcp://127.0.0.1:9998")
	if err != nil {
		t.Fatal("client.Connect:", err)
	}
	err = client.SetRcvtimeo(time.Second)
	if err != nil {
		t.Fatal("client.SetRcvtimeo:", err)
	}
	_, err = bounce(server, client)
	if err == nil {
		t.Error("Expected failure, got success")
	}
	client.SetLinger(0)
	err = client.Close()
	client = nil
	if err != nil {
		t.Fatal("client.Close:", err)
	}

	//  Shutdown
	err = server.Close()
	server = nil
	if err != nil {
		t.Error("server.Close:", err)
	}
}
Ejemplo n.º 11
0
func TestPoller(t *testing.T) {

	var sb, sc *zmq.Socket

	defer func() {
		for _, s := range []*zmq.Socket{sb, sc} {
			if s != nil {
				s.SetLinger(0)
				s.Close()
			}
		}
	}()

	sb, err := zmq.NewSocket(zmq.PAIR)
	if err != nil {
		t.Fatal("NewSocket:", err)
	}

	err = sb.Bind("tcp://127.0.0.1:9737")
	if err != nil {
		t.Fatal("sb.Bind:", err)
	}

	sc, err = zmq.NewSocket(zmq.PAIR)
	if err != nil {
		t.Fatal("NewSocket:", err)
	}

	err = sc.Connect("tcp://127.0.0.1:9737")
	if err != nil {
		t.Fatal("sc.Connect:", err)
	}

	poller := zmq.NewPoller()
	idxb := poller.Add(sb, 0)
	idxc := poller.Add(sc, 0)
	if idxb != 0 || idxc != 1 {
		t.Errorf("idxb=%d idxc=%d", idxb, idxc)
	}

	if pa, err := poller.PollAll(100 * time.Millisecond); err != nil {
		t.Error("PollAll 1:", err)
	} else if len(pa) != 2 {
		t.Errorf("PollAll 1 len = %d", len(pa))
	} else if pa[0].Events != 0 || pa[1].Events != 0 {
		t.Errorf("PollAll 1 events = %v, %v", pa[0], pa[1])
	}

	poller.Update(idxb, zmq.POLLOUT)
	poller.UpdateBySocket(sc, zmq.POLLIN)

	if pa, err := poller.PollAll(100 * time.Millisecond); err != nil {
		t.Error("PollAll 2:", err)
	} else if len(pa) != 2 {
		t.Errorf("PollAll 2 len = %d", len(pa))
	} else if pa[0].Events != zmq.POLLOUT || pa[1].Events != 0 {
		t.Errorf("PollAll 2 events = %v, %v", pa[0], pa[1])
	}

	poller.UpdateBySocket(sb, 0)

	content := "12345678ABCDEFGH12345678ABCDEFGH"

	//  Send message from client to server
	if rc, err := sb.Send(content, zmq.DONTWAIT); err != nil {
		t.Error("sb.Send DONTWAIT:", err)
	} else if rc != 32 {
		t.Error("sb.Send DONTWAIT:", err32)
	}

	if pa, err := poller.PollAll(100 * time.Millisecond); err != nil {
		t.Error("PollAll 3:", err)
	} else if len(pa) != 2 {
		t.Errorf("PollAll 3 len = %d", len(pa))
	} else if pa[0].Events != 0 || pa[1].Events != zmq.POLLIN {
		t.Errorf("PollAll 3 events = %v, %v", pa[0], pa[1])
	}

	//  Receive message
	if msg, err := sc.Recv(zmq.DONTWAIT); err != nil {
		t.Error("sb.Recv DONTWAIT:", err)
	} else if msg != content {
		t.Error("sb.Recv msg != content")
	}

	poller.UpdateBySocket(sb, zmq.POLLOUT)
	poller.Update(idxc, zmq.POLLIN)

	if pa, err := poller.PollAll(100 * time.Millisecond); err != nil {
		t.Error("PollAll 4:", err)
	} else if len(pa) != 2 {
		t.Errorf("PollAll 4 len = %d", len(pa))
	} else if pa[0].Events != zmq.POLLOUT || pa[1].Events != 0 {
		t.Errorf("PollAll 4 events = %v, %v", pa[0], pa[1])
	}

	err = sc.Close()
	sc = nil
	if err != nil {
		t.Error("sc.Close:", err)
	}

	err = sb.Close()
	sb = nil
	if err != nil {
		t.Error("sb.Close:", err)
	}
}
Ejemplo n.º 12
0
func TestHwm(t *testing.T) {

	MAX_SENDS := 10000
	BIND_FIRST := 1
	CONNECT_FIRST := 2

	test_defaults := func() (result int) {

		result = -1

		// Set up bind socket
		bind_socket, err := zmq.NewSocket(zmq.PULL)
		if err != nil {
			t.Error("NewSocket:", err)
			return
		}
		defer func() {
			err := bind_socket.Close()
			if err != nil {
				t.Error("bind_socket.Close:", err)
			}
		}()

		err = bind_socket.Bind("inproc://a")
		if err != nil {
			t.Error("bind_socket.Bind:", err)
			return
		}

		// Set up connect socket
		connect_socket, err := zmq.NewSocket(zmq.PUSH)
		if err != nil {
			t.Error("NewSocket:", err)
			return
		}
		defer func() {
			err := connect_socket.Close()
			if err != nil {
				t.Error("connect_socket.Close:", err)
			}
		}()

		err = connect_socket.Connect("inproc://a")
		if err != nil {
			t.Error("connect_socket.Connect:", err)
			return
		}

		// Send until we block
		send_count := 0
		for send_count < MAX_SENDS {
			_, err := connect_socket.Send("", zmq.DONTWAIT)
			if err != nil {
				break
			}
			send_count++
		}

		// Now receive all sent messages
		recv_count := 0
		for {
			_, err := bind_socket.Recv(zmq.DONTWAIT)
			if err != nil {
				break
			}
			recv_count++
		}
		if send_count != recv_count {
			t.Error("test_defaults: send_count == recv_count")
		}

		return send_count
	}

	count_msg := func(send_hwm, recv_hwm, testType int) (result int) {

		result = -1

		var bind_socket, connect_socket *zmq.Socket
		var err error

		if testType == BIND_FIRST {
			// Set up bind socket
			bind_socket, err = zmq.NewSocket(zmq.PULL)
			if err != nil {
				t.Error("NewSocket:", err)
				return
			}
			defer func() {
				err := bind_socket.Close()
				if err != nil {
					t.Error("bind_socket.Close:", err)
				}
			}()

			err = bind_socket.SetRcvhwm(recv_hwm)
			if err != nil {
				t.Error("bind_socket.SetRcvhwm:", err)
				return
			}

			err = bind_socket.Bind("inproc://a")
			if err != nil {
				t.Error("bind_socket.Bind:", err)
				return
			}

			// Set up connect socket
			connect_socket, err = zmq.NewSocket(zmq.PUSH)
			if err != nil {
				t.Error("NewSocket:", err)
				return
			}
			defer func() {
				err := connect_socket.Close()
				if err != nil {
					t.Error(err)
				}
			}()

			err = connect_socket.SetSndhwm(send_hwm)
			if err != nil {
				t.Error("connect_socket.SetSndhwm:", err)
				return
			}

			err = connect_socket.Connect("inproc://a")
			if err != nil {
				t.Error("connect_socket.Connect:", err)
				return
			}
		} else {
			// Set up connect socket
			connect_socket, err = zmq.NewSocket(zmq.PUSH)
			if err != nil {
				t.Error("NewSocket:", err)
				return
			}
			defer func() {
				err := connect_socket.Close()
				if err != nil {
					t.Error("connect_socket.Close:", err)
				}
			}()

			err = connect_socket.SetSndhwm(send_hwm)
			if err != nil {
				t.Error("connect_socket.SetSndhwm:", err)
				return
			}

			err = connect_socket.Connect("inproc://a")
			if err != nil {
				t.Error("connect_socket.Connect:", err)
				return
			}

			// Set up bind socket
			bind_socket, err = zmq.NewSocket(zmq.PULL)
			if err != nil {
				t.Error("NewSocket:", err)
				return
			}
			defer func() {
				err := bind_socket.Close()
				if err != nil {
					t.Error("bind_socket.Close:", err)
				}
			}()

			err = bind_socket.SetRcvhwm(recv_hwm)
			if err != nil {
				t.Error("bind_socket.SetRcvhwm:", err)
				return
			}

			err = bind_socket.Bind("inproc://a")
			if err != nil {
				t.Error("bind_socket.Bind:", err)
				return
			}
		}

		// Send until we block
		send_count := 0
		for send_count < MAX_SENDS {
			_, err := connect_socket.Send("", zmq.DONTWAIT)
			if err != nil {
				break
			}
			send_count++
		}

		// Now receive all sent messages
		recv_count := 0
		for {
			_, err := bind_socket.Recv(zmq.DONTWAIT)
			if err != nil {
				break
			}
			recv_count++
		}
		if send_count != recv_count {
			t.Error("count_msg: send_count != recv_count")
		}

		// Now it should be possible to send one more.
		_, err = connect_socket.Send("", 0)
		if err != nil {
			t.Error("connect_socket.Send:", err)
			return
		}

		//  Consume the remaining message.
		_, err = bind_socket.Recv(0)
		if err != nil {
			t.Error("bind_socket.Recv:", err)
		}

		return send_count
	}

	test_inproc_bind_first := func(send_hwm, recv_hwm int) int {
		return count_msg(send_hwm, recv_hwm, BIND_FIRST)
	}

	test_inproc_connect_first := func(send_hwm, recv_hwm int) int {
		return count_msg(send_hwm, recv_hwm, CONNECT_FIRST)
	}

	test_inproc_connect_and_close_first := func(send_hwm, recv_hwm int) (result int) {

		result = -1

		// Set up connect socket
		connect_socket, err := zmq.NewSocket(zmq.PUSH)
		if err != nil {
			t.Error("NewSocket:", err)
			return
		}
		defer func() {
			if connect_socket != nil {
				connect_socket.Close()
			}
		}()

		err = connect_socket.SetSndhwm(send_hwm)
		if err != nil {
			t.Error("connect_socket.SetSndhwm:", err)
			return
		}

		err = connect_socket.Connect("inproc://a")
		if err != nil {
			t.Error("connect_socket.Connect:", err)
			return
		}

		// Send until we block
		send_count := 0
		for send_count < MAX_SENDS {
			_, err := connect_socket.Send("", zmq.DONTWAIT)
			if err != nil {
				break
			}
			send_count++
		}

		// Close connect
		err = connect_socket.Close()
		connect_socket = nil
		if err != nil {
			t.Error("connect_socket.Close:", err)
			return
		}

		// Set up bind socket
		bind_socket, err := zmq.NewSocket(zmq.PULL)
		if err != nil {
			t.Error("NewSocket:", err)
			return
		}
		defer func() {
			err := bind_socket.Close()
			if err != nil {
				t.Error("bind_socket.Close:", err)
			}
		}()

		err = bind_socket.SetRcvhwm(recv_hwm)
		if err != nil {
			t.Error("bind_socket.SetRcvhwm:", err)
			return
		}

		err = bind_socket.Bind("inproc://a")
		if err != nil {
			t.Error("bind_socket.Bind:", err)
			return
		}

		// Now receive all sent messages
		recv_count := 0
		for {
			_, err := bind_socket.Recv(zmq.DONTWAIT)
			if err != nil {
				break
			}
			recv_count++
		}
		if send_count != recv_count {
			t.Error("test_inproc_connect_and_close_first: send_count != recv_count")
		}
		return send_count
	}

	// Default values are 1000 on send and 1000 one receive, so 2000 total
	if count := test_defaults(); count != 2000 {
		t.Errorf("test_defaults: expected 2000, got %d", count)
	}
	time.Sleep(100 * time.Millisecond)

	// Infinite send and receive buffer
	if count := test_inproc_bind_first(0, 0); count != MAX_SENDS {
		t.Errorf("test_inproc_bind_first(0, 0): expected %d, got %d", MAX_SENDS, count)
	}
	time.Sleep(100 * time.Millisecond)
	if count := test_inproc_connect_first(0, 0); count != MAX_SENDS {
		t.Errorf("test_inproc_connect_first(0, 0): expected %d, got %d", MAX_SENDS, count)
	}
	time.Sleep(100 * time.Millisecond)

	// Infinite send buffer
	if count := test_inproc_bind_first(1, 0); count != MAX_SENDS {
		t.Errorf("test_inproc_bind_first(1, 0): expected %d, got %d", MAX_SENDS, count)
	}
	time.Sleep(100 * time.Millisecond)
	if count := test_inproc_connect_first(1, 0); count != MAX_SENDS {
		t.Errorf("test_inproc_connect_first(1, 0): expected %d, got %d", MAX_SENDS, count)
	}
	time.Sleep(100 * time.Millisecond)

	// Infinite receive buffer
	if count := test_inproc_bind_first(0, 1); count != MAX_SENDS {
		t.Errorf("test_inproc_bind_first(0, 1): expected %d, got %d", MAX_SENDS, count)
	}
	time.Sleep(100 * time.Millisecond)
	if count := test_inproc_connect_first(0, 1); count != MAX_SENDS {
		t.Errorf("test_inproc_connect_first(0, 1): expected %d, got %d", MAX_SENDS, count)
	}
	time.Sleep(100 * time.Millisecond)

	// Send and recv buffers hwm 1, so total that can be queued is 2
	if count := test_inproc_bind_first(1, 1); count != 2 {
		t.Errorf("test_inproc_bind_first(1, 1): expected 2, got %d", count)
	}
	time.Sleep(100 * time.Millisecond)
	if count := test_inproc_connect_first(1, 1); count != 2 {
		t.Errorf("test_inproc_connect_first(1, 1): expected 2, got %d", count)
	}
	time.Sleep(100 * time.Millisecond)

	// Send hwm of 1, send before bind so total that can be queued is 1
	if count := test_inproc_connect_and_close_first(1, 0); count != 1 {
		t.Errorf("test_inproc_connect_and_close_first(1, 0): expected 1, got %d", count)
	}
	time.Sleep(100 * time.Millisecond)
}
Ejemplo n.º 13
0
func TestConflate(t *testing.T) {

	var s_in, s_out *zmq.Socket
	defer func() {
		for _, s := range []*zmq.Socket{s_in, s_out} {
			if s != nil {
				s.SetLinger(0)
				s.Close()
			}
		}
	}()

	bind_to := "tcp://127.0.0.1:5555"

	err := zmq.SetIoThreads(1)
	if err != nil {
		t.Fatal("SetIoThreads(1):", err)
	}

	s_in, err = zmq.NewSocket(zmq.PULL)
	if err != nil {
		t.Fatal("NewSocket 1:", err)
	}

	err = s_in.SetConflate(true)
	if err != nil {
		t.Fatal("SetConflate(true):", err)
	}

	err = s_in.Bind(bind_to)
	if err != nil {
		t.Fatal("s_in.Bind:", err)
	}

	s_out, err = zmq.NewSocket(zmq.PUSH)
	if err != nil {
		t.Fatal("NewSocket 2:", err)
	}

	err = s_out.Connect(bind_to)
	if err != nil {
		t.Fatal("s_out.Connect:", err)
	}

	message_count := 20

	for j := 0; j < message_count; j++ {
		_, err = s_out.Send(fmt.Sprint(j), 0)
		if err != nil {
			t.Fatalf("s_out.Send %d: %v", j, err)
		}
	}

	time.Sleep(time.Second)

	payload_recved, err := s_in.Recv(0)
	if err != nil {
		t.Error("s_in.Recv:", err)
	} else {
		i, err := strconv.Atoi(payload_recved)
		if err != nil {
			t.Error("strconv.Atoi:", err)
		}
		if i != message_count-1 {
			t.Error("payload_recved != message_count - 1")
		}
	}

	err = s_in.Close()
	s_in = nil
	if err != nil {
		t.Error("s_in.Close:", err)
	}

	err = s_out.Close()
	s_out = nil
	if err != nil {
		t.Error("s_out.Close:", err)
	}
}
Ejemplo n.º 14
0
func TestAbstractIpc(t *testing.T) {

	var sb, sc *zmq.Socket
	defer func() {
		for _, s := range []*zmq.Socket{sb, sc} {
			if s != nil {
				s.SetLinger(0)
				s.Close()
			}
		}
	}()

	addr := "ipc://@/tmp/tester"

	// This is Linux only
	if runtime.GOOS != "linux" {
		t.Skip("Only on Linux")
	}

	sb, err := zmq.NewSocket(zmq.PAIR)
	if err != nil {
		t.Fatal("NewSocket:", err)
	}

	err = sb.Bind(addr)
	if err != nil {
		t.Fatal("sb.Bind:", err)
	}

	endpoint, err := sb.GetLastEndpoint()
	expected := "ipc://@/tmp/tester"
	if endpoint != expected || err != nil {
		t.Fatalf("sb.GetLastEndpoint: expected 'nil' %q, got '%v' %q", expected, err, endpoint)
		return
	}

	sc, err = zmq.NewSocket(zmq.PAIR)
	if err != nil {
		t.Fatal("NewSocket:", err)
	}
	err = sc.Connect(addr)
	if err != nil {
		t.Fatal("sc.Bind:", err)
	}

	resp, err := bounce(sb, sc)
	if err != nil {
		t.Error(resp, err)
	}

	err = sc.Close()
	sc = nil
	if err != nil {
		t.Fatal("sc.Close:", err)
	}

	err = sb.Close()
	sb = nil
	if err != nil {
		t.Fatal("sb.Close:", err)
	}
}
Ejemplo n.º 15
0
Archivo: zmqc.go Proyecto: jhawk28/zmqc
func main() {
	flag.Parse(nil)

	address_list := flag.Args
	if len(address_list) == 0 {
		fmt.Println("No Addresses submitted")
		fmt.Println(flag.Help())
		return
	}

	var send, recv bool
	skip := false

	var socket *zmq.Socket
	switch *socket_type {
	case "PUSH":
		socket, _ = zmq.NewSocket(zmq.PUSH)
		send = true
	case "PULL":
		socket, _ = zmq.NewSocket(zmq.PULL)
		recv = true
	case "PUB":
		socket, _ = zmq.NewSocket(zmq.PUB)
		send = true
	case "SUB":
		socket, _ = zmq.NewSocket(zmq.SUB)
		recv = true
		if len(*subscriptions) == 0 {
			socket.SetSubscribe("")
		}
		for _, subscription := range *subscriptions {
			socket.SetSubscribe(subscription)
		}
	case "REQ":
		socket, _ = zmq.NewSocket(zmq.REQ)
		send = true
		recv = true
	case "REP":
		socket, _ = zmq.NewSocket(zmq.REP)
		send = true
		recv = true
		skip = true
	}
	defer socket.Close()

	// connect or bind
	if *mode {
		for _, address := range address_list {
			socket.Connect(address)
		}
	} else {
		for _, address := range address_list {
			socket.Bind(address)
		}
	}

	delim := byte('\n')
	if *null {
		fmt.Println("Setting delim to null")
		delim = byte(0x00)
	}

	reader := bufio.NewReader(os.Stdin)
	writer := bufio.NewWriter(os.Stdout)

	for i := 0; i < *number || *number == -1; i++ {
		if send && !skip {
			line, _ := reader.ReadBytes(delim)
			socket.SendBytes([]byte(line), 0)
		}
		if recv {
			data, _ := socket.RecvBytes(0)
			writer.Write(data)
			writer.Flush()
		}
		if skip {
			skip = false
		}
	}

	fmt.Println("finished", *number)
}
Ejemplo n.º 16
0
func TestSecurityNull(t *testing.T) {

	time.Sleep(100 * time.Millisecond)

	var handler, server, client *zmq.Socket
	defer func() {
		for _, s := range []*zmq.Socket{handler} {
			if s != nil {
				s.SetLinger(0)
				s.Close()
			}
		}
	}()

	handler, err := zmq.NewSocket(zmq.REP)
	if err != nil {
		t.Fatal("NewSocket:", err)
	}
	err = handler.Bind("inproc://zeromq.zap.01")
	if err != nil {
		t.Fatal("handler.Bind:", err)
	}

	doHandler := func(state zmq.State) error {
		msg, err := handler.RecvMessage(0)
		if err != nil {
			return err //  Terminating
		}
		version := msg[0]
		sequence := msg[1]
		domain := msg[2]
		// address := msg[3]
		// identity := msg[4]
		mechanism := msg[5]

		if version != "1.0" {
			return errors.New("version != 1.0")
		}
		if mechanism != "NULL" {
			return errors.New("mechanism != NULL")
		}

		if domain == "TEST" {
			handler.SendMessage(version, sequence, "200", "OK", "anonymous", "")
		} else {
			handler.SendMessage(version, sequence, "400", "BAD DOMAIN", "", "")
		}
		return nil
	}

	doQuit := func(i interface{}) error {
		err := handler.Close()
		handler = nil
		if err != nil {
			t.Error("handler.Close:", err)
		}
		return errors.New("Quit")
	}
	quit := make(chan interface{})

	reactor := zmq.NewReactor()
	reactor.AddSocket(handler, zmq.POLLIN, doHandler)
	reactor.AddChannel(quit, 0, doQuit)
	go func() {
		reactor.Run(100 * time.Millisecond)
		quit <- true
	}()
	defer func() {
		quit <- true
		<-quit
		close(quit)
	}()

	//  We bounce between a binding server and a connecting client
	server, err = zmq.NewSocket(zmq.DEALER)
	if err != nil {
		t.Fatal("NewSocket:", err)
	}
	client, err = zmq.NewSocket(zmq.DEALER)
	if err != nil {
		t.Fatal("NewSocket:", err)
	}

	//  We first test client/server with no ZAP domain
	//  Libzmq does not call our ZAP handler, the connect must succeed
	err = server.Bind("tcp://127.0.0.1:9683")
	if err != nil {
		t.Fatal("server.Bind:", err)
	}
	err = client.Connect("tcp://127.0.0.1:9683")
	if err != nil {
		t.Fatal("client.Connect:", err)
	}
	msg, err := bounce(server, client)
	if err != nil {
		t.Error(msg, err)
	}
	server.Unbind("tcp://127.0.0.1:9683")
	client.Disconnect("tcp://127.0.0.1:9683")

	//  Now define a ZAP domain for the server; this enables
	//  authentication. We're using the wrong domain so this test
	//  must fail.
	err = server.SetZapDomain("WRONG")
	if err != nil {
		t.Fatal("server.SetZapDomain:", err)
	}
	err = server.Bind("tcp://127.0.0.1:9687")
	if err != nil {
		t.Fatal("server.Bind:", err)
	}
	err = client.Connect("tcp://127.0.0.1:9687")
	if err != nil {
		t.Fatal("client.Connect:", err)
	}
	err = client.SetRcvtimeo(time.Second)
	if err != nil {
		t.Fatal("client.SetRcvtimeo:", err)
	}
	err = server.SetRcvtimeo(time.Second)
	if err != nil {
		t.Fatal("server.SetRcvtimeo:", err)
	}
	_, err = bounce(server, client)
	if err == nil {
		t.Error("Expected failure, got success")
	}
	server.Unbind("tcp://127.0.0.1:9687")
	client.Disconnect("tcp://127.0.0.1:9687")

	//  Now use the right domain, the test must pass
	err = server.SetZapDomain("TEST")
	if err != nil {
		t.Fatal("server.SetZapDomain:", err)
	}
	err = server.Bind("tcp://127.0.0.1:9688")
	if err != nil {
		t.Fatal("server.Bind:", err)
	}
	err = client.Connect("tcp://127.0.0.1:9688")
	if err != nil {
		t.Fatal("client.Connect:", err)
	}
	msg, err = bounce(server, client)
	if err != nil {
		t.Error(msg, err)
	}
	server.Unbind("tcp://127.0.0.1:9688")
	client.Disconnect("tcp://127.0.0.1:9688")

	err = client.Close()
	client = nil
	if err != nil {
		t.Error("client.Close:", err)
	}
	err = server.Close()
	server = nil
	if err != nil {
		t.Error("server.Close:", err)
	}
}
Ejemplo n.º 17
0
func TestSecurityPlain(t *testing.T) {

	time.Sleep(100 * time.Millisecond)

	var handler, server, client *zmq.Socket
	defer func() {
		for _, s := range []*zmq.Socket{handler} {
			if s != nil {
				s.SetLinger(0)
				s.Close()
			}
		}
	}()

	handler, err := zmq.NewSocket(zmq.REP)
	if err != nil {
		t.Fatal("NewSocket:", err)
	}
	err = handler.Bind("inproc://zeromq.zap.01")
	if err != nil {
		t.Fatal("handler.Bind:", err)
	}

	doHandler := func(state zmq.State) error {
		msg, err := handler.RecvMessage(0)
		if err != nil {
			return err //  Terminating
		}
		version := msg[0]
		sequence := msg[1]
		// domain := msg[2]
		// address := msg[3]
		identity := msg[4]
		mechanism := msg[5]
		username := msg[6]
		password := msg[7]

		if version != "1.0" {
			return errors.New("version != 1.0")
		}
		if mechanism != "PLAIN" {
			return errors.New("mechanism != PLAIN")
		}
		if identity != "IDENT" {
			return errors.New("identity != IDENT")
		}

		if username == "admin" && password == "password" {
			handler.SendMessage(version, sequence, "200", "OK", "anonymous", "")
		} else {
			handler.SendMessage(version, sequence, "400", "Invalid username or password", "", "")
		}
		return nil
	}

	doQuit := func(i interface{}) error {
		err := handler.Close()
		if err != nil {
			t.Error("handler.Close:", err)
		}
		return errors.New("Quit")
	}
	quit := make(chan interface{})

	reactor := zmq.NewReactor()
	reactor.AddSocket(handler, zmq.POLLIN, doHandler)
	reactor.AddChannel(quit, 0, doQuit)
	go func() {
		reactor.Run(100 * time.Millisecond)
		quit <- true
	}()
	defer func() {
		quit <- true
		<-quit
		close(quit)
	}()

	//  Server socket will accept connections
	server, err = zmq.NewSocket(zmq.DEALER)
	if err != nil {
		t.Fatal("NewSocket", err)
	}
	err = server.SetIdentity("IDENT")
	if err != nil {
		t.Fatal("server.SetIdentity:", err)
	}
	err = server.SetPlainServer(1)
	if err != nil {
		t.Fatal("server.SetPlainServer(1):", err)
	}
	err = server.Bind("tcp://127.0.0.1:9998")
	if err != nil {
		t.Fatal("server.Bind")
	}

	//  Check PLAIN security with correct username/password
	client, err = zmq.NewSocket(zmq.DEALER)
	if err != nil {
		t.Fatal("NewSocket:", err)
	}
	err = client.SetPlainUsername("admin")
	if err != nil {
		t.Fatal("client.SetPlainUsername:"******"password")
	if err != nil {
		t.Fatal("client.SetPlainPassword:"******"tcp://127.0.0.1:9998")
	if err != nil {
		t.Fatal("client.Connect:", err)
	}
	msg, err := bounce(server, client)
	if err != nil {
		t.Error(msg, err)
	}
	err = client.Close()
	client = nil
	if err != nil {
		t.Fatal("client.Close:", err)
	}

	//  Check PLAIN security with badly configured client (as_server)
	//  This will be caught by the plain_server class, not passed to ZAP
	client, err = zmq.NewSocket(zmq.DEALER)
	if err != nil {
		t.Fatal("NewSocket:", err)
	}
	client.SetPlainServer(1)
	if err != nil {
		t.Fatal("client.SetPlainServer(1):", err)
	}
	err = client.Connect("tcp://127.0.0.1:9998")
	if err != nil {
		t.Fatal("client.Connect:", err)
	}
	err = client.SetRcvtimeo(time.Second)
	if err != nil {
		t.Fatal("client.SetRcvtimeo:", err)
	}
	err = server.SetRcvtimeo(time.Second)
	if err != nil {
		t.Fatal("server.SetRcvtimeo:", err)
	}
	_, err = bounce(server, client)
	if err == nil {
		t.Error("Expected failure, got success")
	}
	client.SetLinger(0)
	err = client.Close()
	client = nil
	if err != nil {
		t.Fatal("client.Close:", err)
	}

	err = server.Close()
	server = nil
	if err != nil {
		t.Fatal("server.Close:", err)
	}
}
Ejemplo n.º 18
0
func Example_test_hwm() {

	MAX_SENDS := 10000
	BIND_FIRST := 1
	CONNECT_FIRST := 2

	test_defaults := func() int {

		// Set up bind socket
		bind_socket, err := zmq.NewSocket(zmq.PULL)
		if checkErr(err) {
			return 0
		}
		defer func() {
			err := bind_socket.Close()
			checkErr(err)
		}()

		err = bind_socket.Bind("inproc://a")
		if checkErr(err) {
			return 0
		}

		// Set up connect socket
		connect_socket, err := zmq.NewSocket(zmq.PUSH)
		if checkErr(err) {
			return 0
		}
		defer func() {
			err := connect_socket.Close()
			checkErr(err)
		}()

		err = connect_socket.Connect("inproc://a")
		if checkErr(err) {
			return 0
		}

		// Send until we block
		send_count := 0
		for send_count < MAX_SENDS {
			_, err := connect_socket.Send("", zmq.DONTWAIT)
			if err != nil {
				break
			}
			send_count++
		}

		// Now receive all sent messages
		recv_count := 0
		for {
			_, err := bind_socket.Recv(zmq.DONTWAIT)
			if err != nil {
				break
			}
			recv_count++
		}
		fmt.Println("send_count == recv_count:", send_count == recv_count)

		return send_count
	}

	count_msg := func(send_hwm, recv_hwm, testType int) int {

		var bind_socket, connect_socket *zmq.Socket
		var err error

		if testType == BIND_FIRST {
			// Set up bind socket
			bind_socket, err = zmq.NewSocket(zmq.PULL)
			if checkErr(err) {
				return 0
			}
			defer func() {
				err := bind_socket.Close()
				checkErr(err)
			}()

			err = bind_socket.SetRcvhwm(recv_hwm)
			if checkErr(err) {
				return 0
			}

			err = bind_socket.Bind("inproc://a")
			if checkErr(err) {
				return 0
			}

			// Set up connect socket
			connect_socket, err = zmq.NewSocket(zmq.PUSH)
			if checkErr(err) {
				return 0
			}
			defer func() {
				err := connect_socket.Close()
				checkErr(err)
			}()

			err = connect_socket.SetSndhwm(send_hwm)
			if checkErr(err) {
				return 0
			}

			err = connect_socket.Connect("inproc://a")
			if checkErr(err) {
				return 0
			}
		} else {
			// Set up connect socket
			connect_socket, err = zmq.NewSocket(zmq.PUSH)
			if checkErr(err) {
				return 0
			}
			defer func() {
				err := connect_socket.Close()
				checkErr(err)
			}()

			err = connect_socket.SetSndhwm(send_hwm)
			if checkErr(err) {
				return 0
			}

			err = connect_socket.Connect("inproc://a")
			if checkErr(err) {
				return 0
			}

			// Set up bind socket
			bind_socket, err = zmq.NewSocket(zmq.PULL)
			if checkErr(err) {
				return 0
			}
			defer func() {
				err := bind_socket.Close()
				checkErr(err)
			}()

			err = bind_socket.SetRcvhwm(recv_hwm)
			if checkErr(err) {
				return 0
			}

			err = bind_socket.Bind("inproc://a")
			if checkErr(err) {
				return 0
			}
		}

		// Send until we block
		send_count := 0
		for send_count < MAX_SENDS {
			_, err := connect_socket.Send("", zmq.DONTWAIT)
			if err != nil {
				break
			}
			send_count++
		}

		// Now receive all sent messages
		recv_count := 0
		for {
			_, err := bind_socket.Recv(zmq.DONTWAIT)
			if err != nil {
				break
			}
			recv_count++
		}
		fmt.Println("send_count == recv_count:", send_count == recv_count)

		// Now it should be possible to send one more.
		_, err = connect_socket.Send("", 0)
		if checkErr(err) {
			return 0
		}

		//  Consume the remaining message.
		_, err = bind_socket.Recv(0)
		checkErr(err)

		return send_count
	}

	test_inproc_bind_first := func(send_hwm, recv_hwm int) int {
		return count_msg(send_hwm, recv_hwm, BIND_FIRST)
	}

	test_inproc_connect_first := func(send_hwm, recv_hwm int) int {
		return count_msg(send_hwm, recv_hwm, CONNECT_FIRST)
	}

	test_inproc_connect_and_close_first := func(send_hwm, recv_hwm int) int {

		// Set up connect socket
		connect_socket, err := zmq.NewSocket(zmq.PUSH)
		if checkErr(err) {
			return 0
		}

		err = connect_socket.SetSndhwm(send_hwm)
		if checkErr(err) {
			connect_socket.Close()
			return 0
		}

		err = connect_socket.Connect("inproc://a")
		if checkErr(err) {
			connect_socket.Close()
			return 0
		}

		// Send until we block
		send_count := 0
		for send_count < MAX_SENDS {
			_, err := connect_socket.Send("", zmq.DONTWAIT)
			if err != nil {
				break
			}
			send_count++
		}

		// Close connect
		err = connect_socket.Close()
		if checkErr(err) {
			return 0
		}

		// Set up bind socket
		bind_socket, err := zmq.NewSocket(zmq.PULL)
		if checkErr(err) {
			return 0
		}
		defer func() {
			err := bind_socket.Close()
			checkErr(err)
		}()

		err = bind_socket.SetRcvhwm(recv_hwm)
		if checkErr(err) {
			return 0
		}

		err = bind_socket.Bind("inproc://a")
		if checkErr(err) {
			return 0
		}

		// Now receive all sent messages
		recv_count := 0
		for {
			_, err := bind_socket.Recv(zmq.DONTWAIT)
			if err != nil {
				break
			}
			recv_count++
		}
		fmt.Println("send_count == recv_count:", send_count == recv_count)

		return send_count
	}

	// Default values are 1000 on send and 1000 one receive, so 2000 total
	fmt.Println("Default values")
	count := test_defaults()
	fmt.Println("count:", count)
	time.Sleep(100 * time.Millisecond)

	// Infinite send and receive buffer
	fmt.Println("\nInfinite send and receive")
	count = test_inproc_bind_first(0, 0)
	fmt.Println("count:", count)
	time.Sleep(100 * time.Millisecond)
	count = test_inproc_connect_first(0, 0)
	fmt.Println("count:", count)
	time.Sleep(100 * time.Millisecond)

	// Infinite send buffer
	fmt.Println("\nInfinite send buffer")
	count = test_inproc_bind_first(1, 0)
	fmt.Println("count:", count)
	time.Sleep(100 * time.Millisecond)
	count = test_inproc_connect_first(1, 0)
	fmt.Println("count:", count)
	time.Sleep(100 * time.Millisecond)

	// Infinite receive buffer
	fmt.Println("\nInfinite receive buffer")
	count = test_inproc_bind_first(0, 1)
	fmt.Println("count:", count)
	time.Sleep(100 * time.Millisecond)
	count = test_inproc_connect_first(0, 1)
	fmt.Println("count:", count)
	time.Sleep(100 * time.Millisecond)

	// Send and recv buffers hwm 1, so total that can be queued is 2
	fmt.Println("\nSend and recv buffers hwm 1")
	count = test_inproc_bind_first(1, 1)
	fmt.Println("count:", count)
	time.Sleep(100 * time.Millisecond)
	count = test_inproc_connect_first(1, 1)
	fmt.Println("count:", count)
	time.Sleep(100 * time.Millisecond)

	// Send hwm of 1, send before bind so total that can be queued is 1
	fmt.Println("\nSend hwm of 1, send before bind")
	count = test_inproc_connect_and_close_first(1, 0)
	fmt.Println("count:", count)
	time.Sleep(100 * time.Millisecond)

	fmt.Println("\nDone")
	// Output:
	// Default values
	// send_count == recv_count: true
	// count: 2000
	//
	// Infinite send and receive
	// send_count == recv_count: true
	// count: 10000
	// send_count == recv_count: true
	// count: 10000
	//
	// Infinite send buffer
	// send_count == recv_count: true
	// count: 10000
	// send_count == recv_count: true
	// count: 10000
	//
	// Infinite receive buffer
	// send_count == recv_count: true
	// count: 10000
	// send_count == recv_count: true
	// count: 10000
	//
	// Send and recv buffers hwm 1
	// send_count == recv_count: true
	// count: 2
	// send_count == recv_count: true
	// count: 2
	//
	// Send hwm of 1, send before bind
	// send_count == recv_count: true
	// count: 1
	//
	// Done
}
Ejemplo n.º 19
0
func TestMultipleContexts(t *testing.T) {

	chQuit := make(chan interface{})
	chErr := make(chan error, 2)
	needQuit := false
	var sock1, sock2, serv1, serv2 *zmq.Socket
	var serv_ctx1, serv_ctx2, ctx1, ctx2 *zmq.Context
	var err error

	defer func() {
		if needQuit {
			chQuit <- true
			chQuit <- true
			<-chErr
			<-chErr
		}
		for _, s := range []*zmq.Socket{sock1, sock2, serv1, serv2} {
			if s != nil {
				s.SetLinger(0)
				s.Close()
			}
		}
		for _, c := range []*zmq.Context{serv_ctx1, serv_ctx2, ctx1, ctx2} {
			if c != nil {
				c.Term()
			}
		}
	}()

	addr1 := "tcp://127.0.0.1:9997"
	addr2 := "tcp://127.0.0.1:9998"

	serv_ctx1, err = zmq.NewContext()
	if err != nil {
		t.Fatal("NewContext:", err)
	}
	serv1, err = serv_ctx1.NewSocket(zmq.REP)
	if err != nil {
		t.Fatal("NewSocket:", err)
	}
	err = serv1.Bind(addr1)
	if err != nil {
		t.Fatal("Bind:", err)
	}

	serv_ctx2, err = zmq.NewContext()
	if err != nil {
		t.Fatal("NewContext:", err)
	}
	serv2, err = serv_ctx2.NewSocket(zmq.REP)
	if err != nil {
		t.Fatal("NewSocket:", err)
	}
	err = serv2.Bind(addr2)
	if err != nil {
		t.Fatal("Bind:", err)
	}

	new_service := func(sock *zmq.Socket, addr string) {
		socket_handler := func(state zmq.State) error {
			msg, err := sock.RecvMessage(0)
			if err != nil {
				return err
			}
			_, err = sock.SendMessage(addr, msg)
			return err
		}
		quit_handler := func(interface{}) error {
			return errors.New("quit")
		}

		reactor := zmq.NewReactor()
		reactor.AddSocket(sock, zmq.POLLIN, socket_handler)
		reactor.AddChannel(chQuit, 1, quit_handler)
		err = reactor.Run(100 * time.Millisecond)
		chErr <- err
	}

	go new_service(serv1, addr1)
	go new_service(serv2, addr2)
	needQuit = true

	time.Sleep(time.Second)

	// default context

	sock1, err = zmq.NewSocket(zmq.REQ)
	if err != nil {
		t.Fatal("NewSocket:", err)
	}
	sock2, err = zmq.NewSocket(zmq.REQ)
	if err != nil {
		t.Fatal("NewSocket:", err)
	}
	err = sock1.Connect(addr1)
	if err != nil {
		t.Fatal("sock1.Connect:", err)
	}
	err = sock2.Connect(addr2)
	if err != nil {
		t.Fatal("sock2.Connect:", err)
	}
	_, err = sock1.SendMessage(addr1)
	if err != nil {
		t.Fatal("sock1.SendMessage:", err)
	}
	_, err = sock2.SendMessage(addr2)
	if err != nil {
		t.Fatal("sock2.SendMessage:", err)
	}
	msg, err := sock1.RecvMessage(0)
	expected := []string{addr1, addr1}
	if err != nil || !arrayEqual(msg, expected) {
		t.Errorf("sock1.RecvMessage: expected %v %v, got %v %v", nil, expected, err, msg)
	}
	msg, err = sock2.RecvMessage(0)
	expected = []string{addr2, addr2}
	if err != nil || !arrayEqual(msg, expected) {
		t.Errorf("sock2.RecvMessage: expected %v %v, got %v %v", nil, expected, err, msg)
	}
	err = sock1.Close()
	sock1 = nil
	if err != nil {
		t.Fatal("sock1.Close:", err)
	}
	err = sock2.Close()
	sock2 = nil
	if err != nil {
		t.Fatal("sock2.Close:", err)
	}

	// non-default contexts

	ctx1, err = zmq.NewContext()
	if err != nil {
		t.Fatal("NewContext:", err)
	}
	ctx2, err = zmq.NewContext()
	if err != nil {
		t.Fatal("NewContext:", err)
	}
	sock1, err = ctx1.NewSocket(zmq.REQ)
	if err != nil {
		t.Fatal("ctx1.NewSocket:", err)
	}
	sock2, err = ctx2.NewSocket(zmq.REQ)
	if err != nil {
		t.Fatal("ctx2.NewSocket:", err)
	}
	err = sock1.Connect(addr1)
	if err != nil {
		t.Fatal("sock1.Connect:", err)
	}
	err = sock2.Connect(addr2)
	if err != nil {
		t.Fatal("sock2.Connect:", err)
	}
	_, err = sock1.SendMessage(addr1)
	if err != nil {
		t.Fatal("sock1.SendMessage:", err)
	}
	_, err = sock2.SendMessage(addr2)
	if err != nil {
		t.Fatal("sock2.SendMessage:", err)
	}
	msg, err = sock1.RecvMessage(0)
	expected = []string{addr1, addr1}
	if err != nil || !arrayEqual(msg, expected) {
		t.Errorf("sock1.RecvMessage: expected %v %v, got %v %v", nil, expected, err, msg)
	}
	msg, err = sock2.RecvMessage(0)
	expected = []string{addr2, addr2}
	if err != nil || !arrayEqual(msg, expected) {
		t.Errorf("sock2.RecvMessage: expected %v %v, got %v %v", nil, expected, err, msg)
	}
	err = sock1.Close()
	sock1 = nil
	if err != nil {
		t.Fatal("sock1.Close:", err)
	}
	err = sock2.Close()
	sock2 = nil
	if err != nil {
		t.Fatal("sock2.Close:", err)
	}

	err = ctx1.Term()
	ctx1 = nil
	if err != nil {
		t.Fatal("ctx1.Term", nil)
	}
	err = ctx2.Term()
	ctx1 = nil
	if err != nil {
		t.Fatal("ctx2.Term", nil)
	}

	needQuit = false
	for i := 0; i < 2; i++ {
		// close(chQuit) doesn't work because the reactor removes closed channels, instead of acting on them
		chQuit <- true
		err = <-chErr
		if err.Error() != "quit" {
			t.Errorf("Expected error value quit, got %v", err)
		}
	}
}
Ejemplo n.º 20
0
// handleOutPort handles messages sent from this server
func (s *serverImpl) handleOutPort() {
	//	fmt.Println("handleOutPort: Waiting for message on outbox")
	// initial cache refresh
	s.setAddressOf(make(map[int]string))
	s.refreshPeerCache(BROADCAST)
	peerSocketCache := make(map[int]*zmq.Socket)

	for {
		msg := <-s.outbox

		receivers := list.New()
		// BROADCAST packet or packet for new server
		if _, ok := s.address(msg.Pid); !ok {
			s.refreshPeerCache(msg.Pid)
			// packet is dropped silently
			if _, ok := s.address(msg.Pid); !ok && msg.Pid != BROADCAST {
				fmt.Println("Address of ", msg.Pid, " could not be found")
				continue
			}
		}

		if msg.Pid != BROADCAST {
			receivers.PushBack(msg.Pid)
		} else {
			s.RLock()
			for key, _ := range s.addressOf {
				if key != s.pid {
					receivers.PushBack(key)
				}
			}
			s.RUnlock()
		}
		// change msg.Pid to match this server
		// receiving server will then find correct Pid
		msg.Pid = s.Pid()
		// send message to receivers
		gobbedMessage := EnvelopeToBytes(msg)
		for pid := receivers.Front(); pid != nil; pid = pid.Next() {
			// cache connections to peers
			var requester *zmq.Socket
			var ok bool
			var err error
			pidInt := 0
			if pidInt, ok = pid.Value.(int); ok {
			}

			if requester, ok = peerSocketCache[pidInt]; !ok {
				requester, err = zmq.NewSocket(zmq.PUSH)
				if err != nil {
					fmt.Println("Error in creating request socket. ", err.Error())
					return
				}
				peerSocketCache[pidInt] = requester
				socketStr, _ := s.address(pidInt)
				requester.Connect("tcp://" + socketStr)
				defer requester.Close()
			}

			requester.SendBytes(gobbedMessage, 0)
		}

	}
}
Ejemplo n.º 21
0
func TestDisconnectInproc(t *testing.T) {

	var pubSocket, subSocket *zmq.Socket
	defer func() {
		for _, s := range []*zmq.Socket{pubSocket, subSocket} {
			if s != nil {
				s.SetLinger(0)
				s.Close()
			}
		}
	}()

	publicationsReceived := 0
	isSubscribed := false

	pubSocket, err := zmq.NewSocket(zmq.XPUB)
	if err != nil {
		t.Fatal("NewSocket XPUB:", err)
	}
	subSocket, err = zmq.NewSocket(zmq.SUB)
	if err != nil {
		t.Fatal("NewSocket SUB:", err)
	}
	err = subSocket.SetSubscribe("foo")
	if err != nil {
		t.Fatal("subSocket.SetSubscribe:", err)
	}

	err = pubSocket.Bind("inproc://someInProcDescriptor")
	if err != nil {
		t.Fatal("pubSocket.Bind:", err)
	}

	iteration := 0

	poller := zmq.NewPoller()
	poller.Add(subSocket, zmq.POLLIN) // read publications
	poller.Add(pubSocket, zmq.POLLIN) // read subscriptions
	for {
		sockets, err := poller.Poll(100 * time.Millisecond)
		if err != nil {
			t.Error("Poll:", err)
			break //  Interrupted
		}

		for _, socket := range sockets {
			if socket.Socket == pubSocket {
				for {
					buffer, err := pubSocket.Recv(0)
					if err != nil {
						t.Fatal("pubSocket.Recv", err)
					}
					exp := "\x01foo"
					if isSubscribed {
						exp = "\x00foo"
					}
					if buffer != exp {
						t.Errorf("pubSocket.Recv: expected %q, got %q", exp, buffer)
					}

					if buffer[0] == 0 {
						if isSubscribed != true {
							t.Errorf("Poller: expected subscribed")
						}
						isSubscribed = false
					} else {
						if isSubscribed != false {
							t.Errorf("Poller: expected not subscribed")
						}
						isSubscribed = true
					}

					more, err := pubSocket.GetRcvmore()
					if err != nil {
						t.Fatal("pubSocket.GetRcvmore:", err)
					}
					if !more {
						break //  Last message part
					}
				}
				break
			}
		}

		for _, socket := range sockets {
			if socket.Socket == subSocket {
				for _, exp := range []string{"foo", "this is foo!", "", ""} {
					msg, err := subSocket.Recv(0)
					if err != nil {
						t.Fatal("subSocket.Recv:", err)
					}
					if msg != exp {
						t.Errorf("subSocket.Recv: expected %q, got %q", exp, msg)
					}
					more, err := subSocket.GetRcvmore()
					if err != nil {
						t.Fatal("subSocket.GetRcvmore:", err)
					}
					if !more {
						publicationsReceived++
						break //  Last message part
					}

				}
				break
			}
		}

		if iteration == 1 {
			err := subSocket.Connect("inproc://someInProcDescriptor")
			if err != nil {
				t.Fatal("subSocket.Connect", err)
			}
		}
		if iteration == 4 {
			err := subSocket.Disconnect("inproc://someInProcDescriptor")
			if err != nil {
				t.Fatal("subSocket.Disconnect", err)
			}
		}
		if iteration > 4 && len(sockets) == 0 {
			break
		}

		_, err = pubSocket.Send("foo", zmq.SNDMORE)
		if err != nil {
			t.Fatal("pubSocket.Send 1", err)
		}
		_, err = pubSocket.Send("this is foo!", 0)
		if err != nil {
			t.Fatal("pubSocket.Send 2", err)
		}

		iteration++

	}

	if publicationsReceived != 3 {
		t.Error("publicationsReceived != 3 ")
	}
	if isSubscribed {
		t.Error("isSubscribed")
	}

	err = pubSocket.Close()
	pubSocket = nil
	if err != nil {
		t.Error("pubSocket.Close:", err)
	}
	err = subSocket.Close()
	subSocket = nil
	if err != nil {
		t.Error("subSocket.Close:", err)
	}
}
Ejemplo n.º 22
0
func TestZmqChanSocket(t *testing.T) {

	var sb, sc *zmq.Socket
	var cb, cc zmqchan.ChanSocket
	var err error
	num := 10

	defer func() {
		if sb != nil {
			sb.SetLinger(0)
			sb.Close()
		}
		if sc != nil {
			sc.SetLinger(0)
			sc.Close()
		}
		if cb != nil {
			log.Println("MAIN: Close")
			cb.Close()
		}
		if cc != nil {
			log.Println("ECHO: Close")
			cc.Close()
		}
		log.Println("BOTH: Exit")
	}()

	if sb, err = zmq.NewSocket(zmq.PAIR); err != nil {
		t.Fatal("NewSocket:", err)
	}

	if sc, err = zmq.NewSocket(zmq.PAIR); err != nil {
		t.Fatal("NewSocket:", err)
	}

	if err = sb.Bind("tcp://127.0.0.1:9737"); err != nil {
		t.Fatal("sb.Bind:", err)
	}

	if err = sc.Connect("tcp://127.0.0.1:9737"); err != nil {
		t.Fatal("sc.Connect:", err)
	}

	if cb, err = zmqchan.NewZmqChanSocket(sb, 0, 0); err != nil {
		t.Fatal("sb.NewZmqChanSocket:", err)
	}
	sb = nil // don't access this or close it on defer

	if cc, err = zmqchan.NewZmqChanSocket(sc, 0, 0); err != nil {
		t.Fatal("sb.NewZmqChanSocket:", err)
	}
	sc = nil // don't access this or close it on defer

	var wg sync.WaitGroup

	wg.Add(1)
	go func() {
		runEcho(t, num, cc)
		wg.Done()
	}()
	wg.Add(1)
	go func() {
		runWrite(t, num, cb)
		wg.Done()
	}()
	wg.Wait()
	log.Println("BOTH: done")
}
Ejemplo n.º 23
0
func TestRemoteEndpoint(t *testing.T) {

	if _, minor, _ := zmq.Version(); minor < 1 {
		t.Skip("RemoteEndpoint not avalable in ZeroMQ versions prior to 4.1.0")
	}

	addr := "tcp://127.0.0.1:9560"
	peer := "127.0.0.1"

	var rep, req *zmq.Socket
	defer func() {
		for _, s := range []*zmq.Socket{rep, req} {
			if s != nil {
				s.SetLinger(0)
				s.Close()
			}
		}
	}()

	rep, err := zmq.NewSocket(zmq.REP)
	if err != nil {
		t.Fatal("NewSocket:", err)
	}
	req, err = zmq.NewSocket(zmq.REQ)
	if err != nil {
		t.Fatal("NewSocket:", err)
	}

	if err = rep.Bind(addr); err != nil {
		t.Fatal("rep.Bind:", err)
	}
	if err = req.Connect(addr); err != nil {
		t.Fatal("req.Connect:", err)
	}

	tmp := "test"
	if _, err = req.Send(tmp, 0); err != nil {
		t.Fatal("req.Send:", err)
	}

	// get message with peer address (remote endpoint)
	msg, props, err := rep.RecvWithMetadata(0, "Peer-Address")
	if err != nil {
		t.Fatal("rep.RecvWithMetadata:", err)
		return
	}
	if msg != tmp {
		t.Errorf("rep.RecvWithMetadata: expected %q, got %q", tmp, msg)
	}

	if p := props["Peer-Address"]; p != peer {
		t.Errorf("rep.RecvWithMetadata: expected Peer-Address == %q, got %q", peer, p)
	}

	err = rep.Close()
	rep = nil
	if err != nil {
		t.Fatal("rep.Close:", err)
	}

	err = req.Close()
	req = nil
	if err != nil {
		t.Fatal("req.Close:", err)
	}
}
Ejemplo n.º 24
0
//  Send a request to a service
func SendRequest(service Service, request, message string) (reply []string, err error) {
	//  Bind to service if not already done
	var requester *zmq.Socket
	fmt.Println("Connecting to '", service.Name, "'' at '", service.Address, "'...")
	requester, err = zmq.NewSocket(zmq.REQ)
	if err != nil {
		log.Println(err)
		return
	}
	requester.Connect(service.Address)

	poller := zmq.NewPoller()
	poller.Add(requester, zmq.POLLIN)

	retries_left := REQUEST_RETRIES
	request_timeout := REQUEST_TIMEOUT
	if request == PPP_HEARTBEAT {
		retries_left = 1
		request_timeout = 1500 * time.Millisecond
	}
	for retries_left > 0 {
		//  Send message
		//  The service required in first packet of envelope
		//  The message for given service in second packet of envelope
		//  Heartbeat messages only contain one message in envelope
		if request == PPP_HEARTBEAT {
			_, err = requester.Send(PPP_HEARTBEAT, 0)
		} else {
			_, err = requester.Send(request, zmq.SNDMORE)
			_, err = requester.Send(message, 0)
		}
		for expect_reply := true; expect_reply; {
			//  Poll socket for a reply, with timeout
			var sockets []zmq.Polled
			sockets, err = poller.Poll(request_timeout)
			if err != nil {
				break //  Interrupted
			}

			//  Wait to receive reply if there are no more messages to send
			if len(sockets) > 0 {
				//  Receive all replies in the envelope before processing
				var more bool
				for count := 0; ; count++ {
					var rep string
					rep, err = requester.Recv(0)
					if err != nil {
						retries_left--
						break
					}

					reply = append(reply, rep)
					//  Unpacking three parts from the message envelope
					//  The first part: the expected service reply signature
					//  The second part is either:
					//  a. error state (empty if no error) OR
					//  b. the heartbeat reply of the server
					//  The third part: the actual message
					if count == 0 && rep != service.Reply {
						err = errors.New("ServiceListOutdated:Bound to wrong service")
						retries_left = 0
						break
					}
					if count == 1 && rep != "" && rep != PPP_READY {
						err = errors.New(rep)
						retries_left = 0
						break
					}
					//  Break from loop if there are no more messages or
					//  an error condition occurs
					more, err = requester.GetRcvmore()
					if !more || err != nil {
						retries_left--
						break
					}
				}

				//  If there was an error retrieving the message, then we
				//  should still expect replies
				if err != nil {
					break
				}
				//  All messages retrieved from packet successfully
				//  Leave the retrieve/retry loops
				retries_left = 0
				expect_reply = false
			} else {
				retries_left--
				if retries_left == 0 {
					if err == nil {
						err = errors.New("Error:TimeOut")
					}
					requester.Close()
					return
				} else {
					err = nil
					reply = nil
					fmt.Println("No response from server, retrying...")
					//  Old socket is confused; close it and open a new one
					requester.Close()
					requester, _ = zmq.NewSocket(zmq.REQ)
					requester.Connect(service.Address)
					// Recreate poller for new client
					poller = zmq.NewPoller()
					poller.Add(requester, zmq.POLLIN)
					//  Send request again, on the new socket
					if request == PPP_HEARTBEAT {
						_, err = requester.Send(PPP_HEARTBEAT, 0)
					} else {
						_, err = requester.Send(request, zmq.SNDMORE)
						_, err = requester.Send(message, 0)
					}
				}
			}
		}
	}
	fmt.Println("\tReceived: ", reply)
	//  Deall with invalid/distorted replies first
	//  Followed by heartbeat replies
	//  Then package reply for return to the function caller
	if len(reply) < 2 {
		err = errors.New(fmt.Sprintf("Error:UnexpectedReply:%s", err))
		requester.Close()
		return
	}
	if reply[1] == PPP_READY {
		reply = append(reply, reply[1])
	}
	reply = reply[2:]
	requester.Close()
	return
}