Golang pair.NewSocket函數代碼示例

func TestSimpleCorrect(t *testing.T) {
	tx, e := pair.NewSocket()
	if e != nil {
		t.Fatalf("NewSocket: %v", e)
		return
	}
	rx, e := pair.NewSocket()
	if e != nil {
		t.Fatalf("NewSocket: %v", e)
		return
	}
	tx.AddTransport(tcp.NewTransport())
	rx.AddTransport(tcp.NewTransport())

	if e = rx.Listen(AddrTestTCP); e != nil {
		t.Fatalf("Listen: %v", e)
		return
	}
	if e = tx.Dial(AddrTestTCP); e != nil {
		t.Fatalf("Dial: %v", e)
		return
	}

	wg := &sync.WaitGroup{}
	wg.Add(2)
	go simpleSend(t, tx, wg)
	go simpleRecv(t, rx, wg)
	wg.Wait()
}

func TestDeviceBadPair(t *testing.T) {
	s1, err := req.NewSocket()
	if err != nil {
		t.Errorf("Failed to open S1: %v", err)
		return
	}
	defer s1.Close()
	s2, err := pair.NewSocket()
	if err != nil {
		t.Errorf("Failed to open S2: %v", err)
		return
	}
	defer s2.Close()

	switch err := mangos.Device(s1, s2); err {
	case mangos.ErrBadProto:
		t.Logf("Got expected err: %v", err)
		return
	case nil:
		t.Errorf("Matching incompatible types succeeded")
		return
	default:
		t.Errorf("Got unexpected err: %v", err)
		return
	}
}

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

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

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

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

	RunTests(t, addr, deviceCaseClient())
}

func (dt *devTest) Init(t *testing.T, addr string) bool {
	var err error
	if dt.Sock, err = pair.NewSocket(); err != nil {
		t.Fatalf("pair.NewSocket(): %v", err)
	}
	return dt.T.Init(t, addr)
}

// NewSocket allocates a new Socket.  The Socket is the handle used to
// access the underlying library.
func NewSocket(d Domain, p Protocol) (*Socket, error) {

	var s Socket
	var err error

	s.proto = p
	s.dom = d

	switch p {
	case PUB:
		s.sock, err = pub.NewSocket()
	case SUB:
		s.sock, err = sub.NewSocket()
	case PUSH:
		s.sock, err = push.NewSocket()
	case PULL:
		s.sock, err = pull.NewSocket()
	case REQ:
		s.sock, err = req.NewSocket()
	case REP:
		s.sock, err = rep.NewSocket()
	case SURVEYOR:
		s.sock, err = surveyor.NewSocket()
	case RESPONDENT:
		s.sock, err = respondent.NewSocket()
	case PAIR:
		s.sock, err = pair.NewSocket()
	case BUS:
		s.sock, err = bus.NewSocket()
	default:
		err = mangos.ErrBadProto
	}

	if err != nil {
		return nil, err
	}

	switch d {
	case AF_SP:
	case AF_SP_RAW:
		err = s.sock.SetOption(mangos.OptionRaw, true)
	default:
		err = errBadDomain
	}
	if err != nil {
		s.sock.Close()
		return nil, err
	}

	// Compat mode sockets should timeout on send if we don't have any pipes
	if err = s.sock.SetOption(mangos.OptionWriteQLen, 0); err != nil {
		s.sock.Close()
		return nil, err
	}

	s.rto = -1
	s.sto = -1
	all.AddTransports(s.sock)
	return &s, nil
}

func (pt *pairTest) Init(t *testing.T, addr string) bool {
	var err error
	if pt.Sock, err = pair.NewSocket(); err != nil {
		pt.Errorf("NewSocket failed: %v", err)
		return false
	}
	return pt.T.Init(t, addr)
}

// ThroughputServer is the server side -- very much equivalent to local_thr in
// nanomsg/perf.  It does the measurement by counting packets received.
func ThroughputServer(addr string, msgSize int, count int) {
	s, err := pair.NewSocket()
	if err != nil {
		log.Fatalf("Failed to make new pair socket: %v", err)
	}
	defer s.Close()

	all.AddTransports(s)
	l, err := s.NewListener(addr, nil)
	if err != nil {
		log.Fatalf("Failed to make new listener: %v", err)
	}

	// Disable TCP no delay, please! - only valid for TCP
	l.SetOption(mangos.OptionNoDelay, false)

	// Make sure we linger a bit on close...
	err = s.SetOption(mangos.OptionLinger, time.Second)
	if err != nil {
		log.Fatalf("Failed set Linger: %v", err)
	}

	err = l.Listen()
	if err != nil {
		log.Fatalf("Failed to listen: %v", err)
	}

	msg, err := s.RecvMsg()
	msg.Free()

	start := time.Now()

	for i := 0; i != count; i++ {
		msg, err := s.RecvMsg()
		if err != nil {
			log.Fatalf("Failed to recv: %v", err)
		}
		if len(msg.Body) != msgSize {
			log.Fatalf("Received wrong message size: %d != %d", len(msg.Body), msgSize)
		}
		// return to cache to avoid GC
		msg.Free()
	}

	finish := time.Now()

	delta := finish.Sub(start)
	deltasec := float64(delta) / float64(time.Second)
	msgpersec := float64(count) / deltasec
	mbps := (float64((count)*8*msgSize) / deltasec) / 1000000.0
	fmt.Printf("message size: %d [B]\n", msgSize)
	fmt.Printf("message count: %d\n", count)
	fmt.Printf("throughput: %d [msg/s]\n", uint64(msgpersec))
	fmt.Printf("throughput: %.3f [Mb/s]\n", mbps)
}

func newSock() (mangos.Socket, error) {
	sock, err := pair.NewSocket()
	if err != nil {
		return nil, stackerr.Newf("can't get new pair socket: %s", err.Error())
	}
	sock.AddTransport(tcp.NewTransport())
	sock.AddTransport(tlstcp.NewTransport())
	if err != nil {
		return nil, err
	}
	return sock, nil
}

func testDevChain(t *testing.T, addr1 string, addr2 string, addr3 string) {
	// This tests using multiple devices across a few transports.
	// It looks like this:  addr1->addr2->addr3 <==> addr3->addr2->addr1
	var err error
	s := make([]mangos.Socket, 5)
	for i := 0; i < 5; i++ {
		if s[i], err = pair.NewSocket(); err != nil {
			t.Errorf("Failed to open S1_1: %v", err)
			return
		}
		defer s[i].Close()
		s[i].AddTransport(tcp.NewTransport())
		s[i].AddTransport(inproc.NewTransport())
		s[i].AddTransport(tlstcp.NewTransport())
		s[i].AddTransport(ipc.NewTransport())
		s[i].AddTransport(ws.NewTransport())
	}

	if err = s[0].Listen(addr1); err != nil {
		t.Errorf("s[0] Listen: %v", err)
		return
	}
	if err = s[1].Dial(addr2); err != nil {
		t.Errorf("s[1] Dial: %v", err)
		return
	}
	if err = s[2].Listen(addr2); err != nil {
		t.Errorf("s[2] Listen: %v", err)
		return
	}
	if err = s[3].Dial(addr3); err != nil {
		t.Errorf("s[3] Dial: %v", err)
		return
	}
	if err = s[4].Listen(addr3); err != nil {
		t.Errorf("s[4] Listen: %v", err)
		return
	}
	if err = mangos.Device(s[0], s[1]); err != nil {
		t.Errorf("s[0],s[1] Device: %v", err)
		return
	}
	if err = mangos.Device(s[2], s[3]); err != nil {
		t.Errorf("s[2],s[3] Device: %v", err)
		return
	}
	if err = mangos.Device(s[4], nil); err != nil {
		t.Errorf("s[4] Device: %v", err)
		return
	}
	RunTests(t, addr1, deviceCaseClient())
}

func node0(url string) {
	var sock mangos.Socket
	var err error
	if sock, err = pair.NewSocket(); err != nil {
		die("can't get new pair socket: %s", err)
	}
	sock.AddTransport(ipc.NewTransport())
	sock.AddTransport(tcp.NewTransport())
	if err = sock.Listen(url); err != nil {
		die("can't listen on pair socket: %s", err.Error())
	}
	send_recv(sock, "node0")
}

// LatencyClient is the client side of the latency test.  It measures round
// trip times, and is the equivalent to nanomsg/perf/remote_lat.
func LatencyClient(addr string, msgSize int, roundTrips int) {
	s, err := pair.NewSocket()
	if err != nil {
		log.Fatalf("Failed to make new pair socket: %v", err)
	}
	defer s.Close()

	all.AddTransports(s)
	d, err := s.NewDialer(addr, nil)
	if err != nil {
		log.Fatalf("Failed to make new dialer: %v", err)
	}

	// TCP no delay, please!
	d.SetOption(mangos.OptionNoDelay, true)

	// Make sure we linger a bit on close...
	err = s.SetOption(mangos.OptionLinger, time.Second)
	if err != nil {
		log.Fatalf("Failed set Linger: %v", err)
	}

	err = d.Dial()
	if err != nil {
		log.Fatalf("Failed to dial: %v", err)
	}

	// 100 milliseconds to give TCP a chance to establish
	//time.Sleep(time.Millisecond * 100)
	msg := mangos.NewMessage(msgSize)
	msg.Body = msg.Body[0:msgSize]

	start := time.Now()
	for i := 0; i < roundTrips; i++ {
		if err = s.SendMsg(msg); err != nil {
			log.Fatalf("Failed SendMsg: %v", err)
		}
		if msg, err = s.RecvMsg(); err != nil {
			log.Fatalf("Failed RecvMsg: %v", err)
		}
	}
	finish := time.Now()
	msg.Free()

	total := (finish.Sub(start)) / time.Microsecond
	lat := float64(total) / float64(roundTrips*2)
	fmt.Printf("message size: %d [B]\n", msgSize)
	fmt.Printf("round trip count: %d\n", roundTrips)
	fmt.Printf("average latency: %.3f [us]\n", lat)
}

func node1(url string) {
	var sock mangos.Socket
	var err error

	if sock, err = pair.NewSocket(); err != nil {
		die("can't get new pair socket: %s", err.Error())
	}
	sock.AddTransport(ipc.NewTransport())
	sock.AddTransport(tcp.NewTransport())
	if err = sock.Dial(url); err != nil {
		die("can't dial on pair socket: %s", err.Error())
	}
	sendRecv(sock, "node1")
}

func TestDeviceSecondNil(t *testing.T) {
	s1, err := pair.NewSocket()
	if err != nil {
		t.Errorf("Failed to open S1: %v", err)
		return
	}
	defer s1.Close()

	switch err := mangos.Device(s1, nil); err {
	case nil:
		t.Logf("Ok!")
		return
	default:
		t.Errorf("Got unexpected err: %v", err)
		return
	}
}

// ThroughputClient is the client side of the latency test.  It simply sends
// the requested number of packets of given size to the server.  It corresponds
// to remote_thr.
func ThroughputClient(addr string, msgSize int, count int) {
	s, err := pair.NewSocket()
	if err != nil {
		log.Fatalf("Failed to make new pair socket: %v", err)
	}
	defer s.Close()

	all.AddTransports(s)
	d, err := s.NewDialer(addr, nil)
	if err != nil {
		log.Fatalf("Failed to make new dialer: %v", err)
	}

	// Disable TCP no delay, please!
	d.SetOption(mangos.OptionNoDelay, false)

	// Make sure we linger a bit on close...
	err = s.SetOption(mangos.OptionLinger, time.Second)
	if err != nil {
		log.Fatalf("Failed set Linger: %v", err)
	}

	err = d.Dial()
	if err != nil {
		log.Fatalf("Failed to dial: %v", err)
	}

	// 100 milliseconds to give TCP a chance to establish
	time.Sleep(time.Millisecond * 100)

	body := make([]byte, msgSize)
	for i := 0; i < msgSize; i++ {
		body[i] = 111
	}

	// send the start message
	s.Send([]byte{})

	for i := 0; i < count; i++ {
		if err = s.Send(body); err != nil {
			log.Fatalf("Failed SendMsg: %v", err)
		}
	}
}

// LatencyServer is the server side -- very much equivalent to local_lat in
// nanomsg/perf.  It does no measurement at all, just sends packets on the wire.
func LatencyServer(addr string, msgSize int, roundTrips int) {
	s, err := pair.NewSocket()
	if err != nil {
		log.Fatalf("Failed to make new pair socket: %v", err)
	}
	defer s.Close()

	all.AddTransports(s)
	l, err := s.NewListener(addr, nil)
	if err != nil {
		log.Fatalf("Failed to make new listener: %v", err)
	}

	// TCP no delay, please!
	l.SetOption(mangos.OptionNoDelay, true)

	// Make sure we linger a bit on close...
	err = s.SetOption(mangos.OptionLinger, time.Second)
	if err != nil {
		log.Fatalf("Failed set Linger: %v", err)
	}

	err = l.Listen()
	if err != nil {
		log.Fatalf("Failed to listen: %v", err)
	}
	for i := 0; i != roundTrips; i++ {
		msg, err := s.RecvMsg()
		if err != nil {
			log.Fatalf("Failed to recv: %v", err)
		}
		if len(msg.Body) != msgSize {
			log.Fatalf("Received wrong message size: %d != %d", len(msg.Body), msgSize)
		}
		if err = s.SendMsg(msg); err != nil {
			log.Fatalf("Failed to send: %v", err)
		}
	}
}