func main() {
	lbbroker := &lbbroker_t{}
	lbbroker.frontend, _ = zmq.NewSocket(zmq.ROUTER)
	lbbroker.backend, _ = zmq.NewSocket(zmq.ROUTER)
	defer lbbroker.frontend.Close()
	defer lbbroker.backend.Close()
	lbbroker.frontend.Bind("ipc://frontend.ipc")
	lbbroker.backend.Bind("ipc://backend.ipc")

	for client_nbr := 0; client_nbr < NBR_CLIENTS; client_nbr++ {
		go client_task()
	}
	for worker_nbr := 0; worker_nbr < NBR_WORKERS; worker_nbr++ {
		go worker_task()
	}

	//  Queue of available workers
	lbbroker.workers = make([]string, 0, 10)

	//  Prepare reactor and fire it up
	lbbroker.reactor = zmq.NewReactor()
	lbbroker.reactor.AddSocket(lbbroker.backend, zmq.POLLIN,
		func(e zmq.State) error { return handle_backend(lbbroker) })
	lbbroker.reactor.Run(-1)
}

func New(primary bool, local, remote string) (bstar *Bstar, err error) {

	bstar = &Bstar{}

	//  Initialize the Binary Star
	bstar.Reactor = zmq.NewReactor()
	if primary {
		bstar.state = state_PRIMARY
	} else {
		bstar.state = state_BACKUP
	}

	//  Create publisher for state going to peer
	bstar.statepub, err = zmq.NewSocket(zmq.PUB)
	bstar.statepub.Bind(local)

	//  Create subscriber for state coming from peer
	bstar.statesub, err = zmq.NewSocket(zmq.SUB)
	bstar.statesub.SetSubscribe("")
	bstar.statesub.Connect(remote)

	//  Set-up basic reactor events
	bstar.Reactor.AddChannelTime(time.Tick(bstar_HEARTBEAT), 1,
		func(i interface{}) error { return bstar.send_state() })
	bstar.Reactor.AddSocket(bstar.statesub, zmq.POLLIN,
		func(e zmq.State) error { return bstar.recv_state() })

	return
}

func main() {

	srv := &clonesrv_t{
		port:  5556,
		kvmap: make(map[string]*kvmsg.Kvmsg),
	}

	//  Set up our clone server sockets
	srv.snapshot, _ = zmq.NewSocket(zmq.ROUTER)
	srv.snapshot.Bind(fmt.Sprint("tcp://*:", srv.port))
	srv.publisher, _ = zmq.NewSocket(zmq.PUB)
	srv.publisher.Bind(fmt.Sprint("tcp://*:", srv.port+1))
	srv.collector, _ = zmq.NewSocket(zmq.PULL)
	srv.collector.Bind(fmt.Sprint("tcp://*:", srv.port+2))

	//  Register our handlers with reactor
	reactor := zmq.NewReactor()
	reactor.AddSocket(srv.snapshot, zmq.POLLIN,
		func(e zmq.State) error { return snapshots(srv) })
	reactor.AddSocket(srv.collector, zmq.POLLIN,
		func(e zmq.State) error { return collector(srv) })
	reactor.AddChannelTime(time.Tick(1000*time.Millisecond), 1,
		func(v interface{}) error { return flush_ttl(srv) })

	log.Println(reactor.Run(100 * time.Millisecond)) // precision: .1 seconds
}

// 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)
	}
}

// newNode creates a new node.
func newNode(events chan *Event, cmds chan interface{}, replies chan interface{}) (n *node, err error) {
	n = &node{
		reactor:    zmq.NewReactor(),
		events:     events,
		cmds:       cmds,
		replies:    replies,
		beaconPort: zreDiscoveryPort,
		peers:      make(map[string]*peer),
		peerGroups: make(map[string]*group),
		ownGroups:  make(map[string]*group),
		headers:    make(map[string]string),
		terminated: make(chan interface{}),
	}

	n.beacon = beacon.New()

	n.inbox, err = zmq.NewSocket(zmq.ROUTER)
	if err != nil {
		return nil, err // Could not create new socket
	}
	err = n.inbox.SetIpv6(true)
	if err != nil {
		return nil, err
	}

	// Generate random uuid
	n.uuid = make([]byte, 16)
	io.ReadFull(crand.Reader, n.uuid)

	// Default name for node is first 6 characters of UUID:
	// the shorter string is more readable in logs
	n.name = fmt.Sprintf("%.6s", fmt.Sprintf("%X", n.uuid))

	n.wg.Add(1) // We're going to wait until actor() is done

	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 (client *Client) send(ctx context.Context, call *Call) error {
	if client.shutdown || client.closing {
		return ErrShutdown
	}

	// Every call gets its own req socket
	sock, err := client.ctx.NewSocket(zmq.REQ)
	if err != nil {
		return err
	}
	defer sock.Close()

	// Connect it to the router
	if err := sock.Connect(RouterURL); err != nil {
		return err
	}

	// Marshal the outgoing message
	msgBytes, err := proto.Marshal(call.Req)
	if err != nil {
		return err
	}

	// Envelope the message
	reqID := uuid.NewV4()
	envelope := &Request{
		UUID:    reqID.Bytes(),
		Path:    proto.String(fmt.Sprintf("zrpc://%s/%s", call.Service, util.GetMessageName(call.Req))),
		Payload: msgBytes,
	}

	// If request has a timeout, send it in the request envelope
	d, ok := ctx.Deadline()
	if ok {
		envelope.Expires = proto.Int64(d.Unix())
	}

	// Marshal the outgoing envelope
	envBytes, err := proto.Marshal(envelope)
	if err != nil {
		return err
	}

	// Send it
	if _, err := sock.SendBytes(envBytes, 0); err != nil {
		return err
	}

	handleResponse := func(state zmq.State) error {
		respBytes, err := sock.RecvBytes(0)
		if err != nil {
			return err
		}

		// Unmarshal the response envelope
		resp := &Response{}
		if err := proto.Unmarshal(respBytes, resp); err != nil {
			return err
		}

		// Make sure the same message ID was received
		respID, err := uuid.FromBytes(resp.UUID)
		if err != nil || !uuid.Equal(reqID, respID) {
			glog.Errorf("Mismatching message IDs, sent '%s', got '%s'", reqID, respID)
			return ErrMessageMismatch
		}

		// Check if there is an error
		if resp.Error != nil {
			return NewClientError(resp.Error.GetMessage(), int(resp.GetStatusCode()))
		}

		// Decode the actual message (if exists and wanted)
		if call.Resp != nil && len(resp.Payload) > 0 {
			if err := proto.Unmarshal(resp.Payload, call.Resp); err != nil {
				return err
			}
		}
		// This is insane, but the reactor runs until an error is returned...
		return errDone
	}

	// Use a reactor to be able to utilize the calls cancelc
	reactor := zmq.NewReactor()
	reactor.AddSocket(sock, zmq.POLLIN, handleResponse)
	reactor.AddChannel(call.cancelc, 1, func(interface{}) error {
		return ErrCancel
	})
	// Poll for a short interval to be able to return to the channel handling
	if err := reactor.Run(time.Millisecond * 50); err != errDone {
		return err
	}
	return nil
}

func Example_multiple_contexts() {
	chQuit := make(chan interface{})
	chReactor := make(chan bool)

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

	serv_ctx1, err := zmq.NewContext()
	if checkErr(err) {
		return
	}
	serv1, err := serv_ctx1.NewSocket(zmq.REP)
	if checkErr(err) {
		return
	}
	err = serv1.Bind(addr1)
	if checkErr(err) {
		return
	}
	defer func() {
		serv1.Close()
		serv_ctx1.Term()
	}()

	serv_ctx2, err := zmq.NewContext()
	if checkErr(err) {
		return
	}
	serv2, err := serv_ctx2.NewSocket(zmq.REP)
	if checkErr(err) {
		return
	}
	err = serv2.Bind(addr2)
	if checkErr(err) {
		return
	}
	defer func() {
		serv2.Close()
		serv_ctx2.Term()
	}()

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

		defer func() {
			chReactor <- true
		}()

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

	go new_service(serv1, addr1)
	go new_service(serv2, addr2)

	time.Sleep(time.Second)

	// default context

	sock1, err := zmq.NewSocket(zmq.REQ)
	if checkErr(err) {
		return
	}
	sock2, err := zmq.NewSocket(zmq.REQ)
	if checkErr(err) {
		return
	}
	err = sock1.Connect(addr1)
	if checkErr(err) {
		return
	}
	err = sock2.Connect(addr2)
	if checkErr(err) {
		return
	}
	_, err = sock1.SendMessage(addr1)
	if checkErr(err) {
		return
	}
	_, err = sock2.SendMessage(addr2)
	if checkErr(err) {
		return
	}
	msg, err := sock1.RecvMessage(0)
//.........这里部分代码省略.........

func Example_test_security_plain() {

	time.Sleep(100 * time.Millisecond)

	handler, err := zmq.NewSocket(zmq.REP)
	if checkErr(err) {
		return
	}
	err = handler.Bind("inproc://zeromq.zap.01")
	if checkErr(err) {
		return
	}

	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()
		checkErr(err)
		fmt.Println("Handler closed")
		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)
		fmt.Println("Reactor finished")
		quit <- true
	}()
	defer func() {
		quit <- true
		<-quit
		close(quit)
	}()

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

	//  Check PLAIN security with correct username/password
	client, err := zmq.NewSocket(zmq.DEALER)
	if checkErr(err) {
		return
	}
	err = client.SetPlainUsername("admin")
	if checkErr(err) {
		return
	}
	err = client.SetPlainPassword("password")
	if checkErr(err) {
		return
	}
	err = client.Connect("tcp://127.0.0.1:9998")
	if checkErr(err) {
//.........这里部分代码省略.........

func Example_test_security_null() {

	time.Sleep(100 * time.Millisecond)

	handler, err := zmq.NewSocket(zmq.REP)
	if checkErr(err) {
		return
	}
	err = handler.Bind("inproc://zeromq.zap.01")
	if checkErr(err) {
		return
	}

	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()
		checkErr(err)
		fmt.Println("Handler closed")
		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)
		fmt.Println("Reactor finished")
		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 checkErr(err) {
		return
	}
	client, err := zmq.NewSocket(zmq.DEALER)
	if checkErr(err) {
		return
	}

	//  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 checkErr(err) {
		return
	}
	err = client.Connect("tcp://127.0.0.1:9683")
	if checkErr(err) {
		return
	}
	bounce(server, client, false)
	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 checkErr(err) {
		return
	}
	err = server.Bind("tcp://127.0.0.1:9687")
	if checkErr(err) {
		return
	}
	err = client.Connect("tcp://127.0.0.1:9687")
	if checkErr(err) {
		return
//.........这里部分代码省略.........

func Example_test_security_curve() {

	time.Sleep(100 * time.Millisecond)

	//  Generate new keypairs for this test
	client_public, client_secret, err := zmq.NewCurveKeypair()
	if checkErr(err) {
		return
	}
	server_public, server_secret, err := zmq.NewCurveKeypair()
	if checkErr(err) {
		return
	}

	handler, err := zmq.NewSocket(zmq.REP)
	if checkErr(err) {
		return
	}
	err = handler.Bind("inproc://zeromq.zap.01")
	if checkErr(err) {
		return
	}

	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()
		checkErr(err)
		fmt.Println("Handler closed")
		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)
		fmt.Println("Reactor finished")
		quit <- true
	}()
	defer func() {
		quit <- true
		<-quit
		close(quit)
	}()

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

	err = server.SetRcvtimeo(time.Second)
//.........这里部分代码省略.........