Golang Socket.SendMessage方法代码示例

func RecMsgFromPeers(s *zmq.Socket, ser Servernode) {
	var e Envelope
	for {
		msg, err := s.RecvMessage(0)
		a1 := strings.Split(msg[0], "&{")
		a2 := strings.Split(a1[1], " ")
		pid, _ := strconv.Atoi(a2[0])
		mid, _ := strconv.Atoi(a2[1])
		msgid := int64(mid)
		text := ""

		for b := 2; b < len(a2); b++ {
			text = text + " " + a2[b]
		}
		text1 := text[1:]
		msgtext := strings.Split(text1, "}")[0]

		e.Pid = pid
		e.MsgId = msgid
		e.Msg = msgtext
		go QueueInbox(ser, e, ser.Inbox())

		if err != nil {
			break
		}
		s.SendMessage(msg)
	}
}

func (c *WorkerConnection) run(socket *zmq.Socket) {
	defer socket.Close()
	socket.SetRcvtimeo(c.activeTimeout)
	for {
		select {
		case <-c.quit:
			close(c.wait)
			return
		case request := <-c.requestChannel:
			if _, err := socket.SendMessage(request); err != nil {
				log.Println("Failed to send request:", err)
			}
		case request := <-c.connectionChan:
			go c.handleConnectionRequest(socket, request)
		default:
			message, err := socket.RecvMessageBytes(0)
			if err != nil {
				// Needed to yield to goroutines when GOMAXPROCS is 1.
				// Note: The 1.3 preemptive scheduler doesn't seem to work here,
				// so this is still required.
				runtime.Gosched()
				break
			}
			socket.SetRcvtimeo(c.activeTimeout)
			go c.handleResponse(message)
		}
	}
}

func reflector(t *testing.T, s *zmq.Socket, n int, wg *sync.WaitGroup) chan bool {
	s.SetRcvtimeo(time.Second)
	s.SetSndtimeo(time.Second)
	svcrouter.Barrier()
	wg.Add(1)
	c := make(chan bool)
	go func() {
		/* this is a nasty hack but is OK for a test program I guess */
		for {
			if msg, err := s.RecvMessageBytes(0); err == nil {
				svcrouter.DumpMsg(fmt.Sprintf("reflector %d", n), msg)
				if _, err := s.SendMessage(msg); err != nil {
					wg.Done()
					t.Fatal(err)
					return
				}
			}
			select {
			case <-c:
				wg.Done()
				return
			default:
			}
		}
	}()
	return c
}

//  Echo service
func echo(socket *zmq.Socket) (err error) {
	msg, err := socket.RecvMessage(0)
	if err != nil {
		return
	}
	_, err = socket.SendMessage(msg)
	return
}

func openDoor(sp gpio.DirectPinDriver, publisher *zmq.Socket) {
	sp.DigitalWrite(1)
	publisher.SendMessage("door.state.unlock", "Door Unlocked")
	gobot.After(5*time.Second, func() {
		sp.DigitalWrite(0)
		publisher.SendMessage("door.state.lock", "Door Locked")
	})
}

func (k *kernelRunner) sendMessage(msg *message, ids []string, socket *zmq.Socket) error {
	parts, err := serializeMessage(msg, ids, []byte(k.connInfo.Key))
	if err != nil {
		return fmt.Errorf("serializing message: %v", err)
	}
	if _, err := socket.SendMessage(parts); err != nil {
		return fmt.Errorf("sending message: %v", err)
	}
	return nil
}

/* {{{ func RequestAndReply(soc *zmq.Socket, msg interface{}) (reply []string, err error) {
 * 支持超时时间,但要注意如果一个socket失败之后，因为req严格同步,连接池模式下这个socket最好销毁
 */
func RequestAndReply(soc *zmq.Socket, timeout time.Duration, msg ...interface{}) (reply []string, err error) {
	poller := zmq.NewPoller()
	poller.Add(soc, zmq.POLLIN)
	if _, err := soc.SendMessage(msg...); err != nil {
		return nil, err
	}

	if sockets, err := poller.Poll(timeout); err != nil {
		return nil, err
	} else if len(sockets) == 1 {
		return soc.RecvMessage(zmq.DONTWAIT)
	} else {
		return nil, fmt.Errorf("time out!")
	}

	return
}

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
}

//  The send method sends a multi-frame key-value message to a socket.
func (kvmsg *Kvmsg) Send(socket *zmq.Socket) (err error) {
	//fmt.Printf("Send to %s: %q\n", socket, kvmsg.frame)
	_, err = socket.SendMessage(kvmsg.frame)
	return
}

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 {
//.........这里部分代码省略.........

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)
	}
//.........这里部分代码省略.........

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")

//.........这里部分代码省略.........

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)
//.........这里部分代码省略.........

func (w *Worker) run(socket *zmq.Socket) {
	defer close(w.wait)
	defer socket.Close()
	socket.SetRcvtimeo(w.passiveTimeout)
	socket.Bind(w.address)
	atomic.StoreInt32(&w.runningWorkers, 0)
	responseChannel := make(chan *messageContext)
	sendResponse := func(response [][]byte) {
		atomic.AddInt32(&w.runningWorkers, -1)
		if _, err := socket.SendMessage(response); err != nil {
			log.Println("Failed to send response:", err)
		}
		if atomic.LoadInt32(&w.runningWorkers) == 0 {
			socket.SetRcvtimeo(w.passiveTimeout)
		}
	}
	for {
		if atomic.LoadInt32(&w.runningWorkers) == w.maxWorkers {
			// We're already running maxWorkers so block until a response is ready
			select {
			case response := <-responseChannel:
				w.logFinish(response)
				sendResponse(response.data)
			case <-w.quit:
				return
			}
		}
		select {
		case <-w.quit:
			return
		case response := <-responseChannel:
			w.logFinish(response)
			sendResponse(response.data)
			break
		default:
			message, err := socket.RecvMessageBytes(0)
			if err != nil {
				// Needed to yield to goroutines when GOMAXPROCS is 1.
				// Note: The 1.3 preemptive scheduler doesn't seem to work here,
				// so this is still required.
				runtime.Gosched()
				break
			}
			request, err := w.unmarshal(message[len(message)-1])
			if err != nil {
				log.Println("Received invalid message", err)
				break
			}
			workerFunction := w.registeredWorkerFunctions[request.Method]
			if workerFunction == nil {
				log.Println("Unregistered worker function:", request.Method)
				break
			}
			context := messageContext{data: message, startTime: time.Now(), method: request.Method}
			if atomic.LoadInt32(&w.runningWorkers) == 0 {
				socket.SetRcvtimeo(w.activeTimeout)
			}
			atomic.AddInt32(&w.runningWorkers, 1)
			go w.runFunction(responseChannel, &context, request.Parameters, workerFunction)
		}
	}
}

func (server *server_t) ping(socket *zmq.Socket) {
	if time.Now().After(server.ping_at) {
		socket.SendMessage(server.endpoint, "PING")
		server.ping_at = time.Now().Add(PING_INTERVAL)
	}
}