Exemplo n.º 1
0
// QoS 1, 2 are available. but really suck implementation.
// reconsider qos design later.
func NewMomonga(config *configuration.Config) *Momonga {
	engine := &Momonga{
		OutGoingTable: util.NewMessageTable(),
		TopicMatcher:  util.NewQlobber(),
		Connections:   map[uint32]map[string]*MmuxConnection{},
		RetryMap:      map[string][]*Retryable{},
		Started:       time.Now(),
		EnableSys:     false,
		DataStore:     datastore.NewMemstore(),
		LockPool:      map[uint32]*sync.RWMutex{},
		config:        config,
		InflightTable: map[string]*util.MessageTable{},
	}

	// initialize lock pool
	for i := 0; i < config.GetLockPoolSize(); i++ {
		engine.LockPool[uint32(i)] = &sync.RWMutex{}
		engine.Connections[uint32(i)] = make(map[string]*MmuxConnection)
	}

	auth := config.GetAuthenticators()
	if len(auth) > 0 {
		for i := 0; i < len(auth); i++ {
			var authenticator Authenticator
			switch auth[i].Type {
			case "empty":
				authenticator = &EmptyAuthenticator{}
				authenticator.Init(config)
			default:
				panic(fmt.Sprintf("Unsupported type specified: [%s]", auth[i].Type))
			}
			engine.registerAuthenticator(authenticator)
		}
	} else {
		authenticator := &EmptyAuthenticator{}
		authenticator.Init(config)
		engine.registerAuthenticator(authenticator)
	}

	engine.setupCallback()
	return engine
}
Exemplo n.º 2
0
func (self *MyHttpServer) debugRouter(w http.ResponseWriter, req *http.Request) error {
	switch req.URL.Path {
	case "/debug/vars":
		w.Header().Set("Content-Type", "application/json; charset=utf-8")
		fmt.Fprintf(w, "{\n")
		first := true
		expvar.Do(func(kv expvar.KeyValue) {
			if kv.Key == "cmdline" || kv.Key == "memstats" {
				return
			}
			if !first {
				fmt.Fprintf(w, ",\n")
			}
			first = false
			fmt.Fprintf(w, "%q: %s", kv.Key, kv.Value)
		})
		fmt.Fprintf(w, "\n}\n")
	case "/debug/pprof":
		httpprof.Index(w, req)
	case "/debug/pprof/cmdline":
		httpprof.Cmdline(w, req)
	case "/debug/pprof/symbol":
		httpprof.Symbol(w, req)
	case "/debug/pprof/heap":
		httpprof.Handler("heap").ServeHTTP(w, req)
	case "/debug/pprof/goroutine":
		httpprof.Handler("goroutine").ServeHTTP(w, req)
	case "/debug/pprof/profile":
		httpprof.Profile(w, req)
	case "/debug/pprof/block":
		httpprof.Handler("block").ServeHTTP(w, req)
	case "/debug/pprof/threadcreate":
		httpprof.Handler("threadcreate").ServeHTTP(w, req)
	case "/debug/retain":
		itr := self.Engine.DataStore.Iterator()
		for ; itr.Valid(); itr.Next() {
			k := string(itr.Key())
			fmt.Fprintf(w, "<div>key: %s</div>", k)
		}
	case "/debug/retain/clear":
		itr := self.Engine.DataStore.Iterator()
		var targets []string
		for ; itr.Valid(); itr.Next() {
			x := itr.Key()
			targets = append(targets, string(x))
		}
		for _, s := range targets {
			self.Engine.DataStore.Del([]byte(s), []byte(s))
		}
		fmt.Fprintf(w, "<textarea>%#v</textarea>", self.Engine.DataStore)
	case "/debug/connections":
		for _, v := range self.Engine.Connections {
			fmt.Fprintf(w, "<div>%#v</div>", v)
		}
	case "/debug/connections/clear":
		self.Engine.Connections = make(map[uint32]map[string]*MmuxConnection)
		fmt.Fprintf(w, "cleared")
	case "/debug/qlobber/clear":
		self.Engine.TopicMatcher = util.NewQlobber()
		fmt.Fprintf(w, "cleared")
	case "/debug/qlobber/dump":
		fmt.Fprintf(w, "qlobber:\n")
		self.Engine.TopicMatcher.Dump(w)
	case "/debug/config/dump":
		e := toml.NewEncoder(w)
		e.Encode(self.Engine.Config())

	default:
		return fmt.Errorf("404 %s", req.URL.Path)
	}
	return nil
}
Exemplo n.º 3
0
// TODO: どっかで綺麗にしたい
func NewMyConnection(conf *MyConfig) *MyConnection {
	if conf == nil {
		conf = &defaultConfig
	}

	c := &MyConnection{
		Events:           make(map[string]interface{}),
		Queue:            make(chan codec.Message, conf.QueueSize),
		OfflineQueue:     make([]codec.Message, 0),
		MaxOfflineQueue:  conf.OfflineQueueSize,
		InflightTable:    util.NewMessageTable(),
		SubscribeHistory: make(map[string]int),
		Mutex:            sync.RWMutex{},
		Qlobber:          util.NewQlobber(),
		SubscribedTopics: make(map[string]int),
		Last:             time.Now(),
		CleanSession:     true,
		Keepalive:        conf.Keepalive,
		State:            STATE_INIT,
		Closed:           make(chan bool),
		MaxMessageSize:   conf.MaxMessageSize,
		fch:              make(chan bool, 1),
	}

	c.t = time.AfterFunc(time.Second*300, func() {
		// NOTE: assume flush
		if c.State == STATE_CONNECTED {
			c.kickFlusher()
		}
	})

	c.logger = log.Global
	if conf.Logger != nil {
		c.logger = conf.Logger
	}

	if conf.WritePerSec > 0 {
		c.balancer = &util.Balancer{
			PerSec: conf.WritePerSec,
		}
	}
	if conf.MaxMessageSize > 0 {
		c.MaxMessageSize = conf.MaxMessageSize
	}

	c.Events["connected"] = func() {
		c.State = STATE_CONNECTED
	}

	c.Events["connack"] = func(result uint8) {
		if result == 0 {
			c.SetState(STATE_CONNECTED)
			if c.Reconnect {
				for key, qos := range c.SubscribeHistory {
					c.Subscribe(key, qos)
				}
			}

			//TODO: このアホっぽい実装はあとでちゃんとなおす。なおしたい
			if len(c.OfflineQueue) > 0 {
				c.Mutex.Lock()
				var targets []codec.Message
				for len(c.OfflineQueue) > 0 {
					targets = append(targets, c.OfflineQueue[0])
					c.OfflineQueue = c.OfflineQueue[1:]
				}
				c.Mutex.Unlock()

				for i := 0; i < len(targets); i++ {
					c.Queue <- targets[i]
				}
			}
			c.setupKicker()
		} else {
			c.State = STATE_CLOSED
		}
	}

	// for Wait API
	c.InflightTable.SetOnFinish(func(id uint16, message codec.Message, opaque interface{}) {
		if m, ok := message.(*codec.PublishMessage); ok {
			if m.QosLevel == 1 {
				if b, ok := opaque.(chan bool); ok {
					close(b)
				}
			} else if m.QosLevel == 2 {
				if b, ok := opaque.(chan bool); ok {
					close(b)
				}
			}
		}
	})

	// こっちに集約できるとClientが薄くなれる
	c.Events["publish"] = func(msg *codec.PublishMessage) {
		if msg.QosLevel == 1 {
			ack := codec.NewPubackMessage()
			ack.PacketIdentifier = msg.PacketIdentifier
			c.WriteMessageQueue(ack)
			c.logger.Debug("Send puback message to sender. [%s: %d]", c.GetId(), ack.PacketIdentifier)
		} else if msg.QosLevel == 2 {
			ack := codec.NewPubrecMessage()
			ack.PacketIdentifier = msg.PacketIdentifier
			c.WriteMessageQueue(ack)
			c.logger.Debug("Send pubrec message to sender. [%s: %d]", c.GetId(), ack.PacketIdentifier)
		}
	}

	c.Events["puback"] = func(messageId uint16) {
		c.InflightTable.Unref(messageId)
	}

	c.Events["pubrec"] = func(messageId uint16) {
		ack := codec.NewPubrelMessage()
		ack.PacketIdentifier = messageId
		c.Queue <- ack
	}

	c.Events["pubrel"] = func(messageId uint16) {
		ack := codec.NewPubcompMessage()
		ack.PacketIdentifier = messageId
		c.Queue <- ack

		c.InflightTable.Unref(ack.PacketIdentifier) // Unackknowleged
	}

	c.Events["pubcomp"] = func(messageId uint16) {
		c.InflightTable.Unref(messageId)
	}

	c.Events["unsuback"] = func(messageId uint16) {
		mm, err := c.InflightTable.Get(messageId)
		if err == nil {
			if v, ok := mm.(*codec.UnsubscribeMessage); ok {
				delete(c.SubscribeHistory, v.TopicName)
			}
		}

		c.InflightTable.Remove(messageId)
	}

	c.Events["subscribe"] = func(p *codec.SubscribeMessage) {
	}

	c.Events["suback"] = func(messageId uint16, grunted int) {
		c.InflightTable.Remove(messageId)
	}

	c.Events["unsubscribe"] = func(messageId uint16, granted int, payload []codec.SubscribePayload) {
		for i := 0; i < len(payload); i++ {
			delete(c.SubscribeHistory, payload[i].TopicPath)
		}
	}

	// これはコネクション渡したほうがいいんではないだろうか。
	c.Events["pingreq"] = func() {
		// TODO: check Ping count periodically, abort MyConnection when the counter exceeded.
		c.PingCounter++
	}

	c.Events["pingresp"] = func() {
		// nothing to do.
		c.PingCounter--
	}

	c.Events["disconnect"] = func() {
		// nothing to do ?
		c.State = STATE_CLOSED
	}

	c.Events["error"] = func(err error) {
		//fmt.Printf("Error: %s\n", err)
	}

	c.Events["connect"] = func(msg *codec.ConnectMessage) {
	}

	c.Events["parsed"] = func() {
	}

	// Write Queue
	go func() {
		for {
			select {
			case msg := <-c.Queue:
				state := c.GetState()
				if state == STATE_CONNECTED || state == STATE_CONNECTING {
					if msg.GetType() == codec.PACKET_TYPE_PUBLISH {
						sb := msg.(*codec.PublishMessage)
						if sb.QosLevel < 0 {
							c.logger.Error("QoS under zero. %s: %#v", c.Id, sb)
							break
						}

						if sb.QosLevel > 0 {
							id := c.InflightTable.NewId()
							sb.PacketIdentifier = id
							c.InflightTable.Register(id, sb, nil)
						}
					}

					e := c.writeMessage(msg)
					if e != nil {
						if v, ok := c.Events["error"].(func(error)); ok {
							v(e)
						}
					}
					c.invalidateTimer()
				} else {
					c.OfflineQueue = append(c.OfflineQueue, msg)
				}
			case <-c.Closed:
				if c.KeepLoop {
					time.Sleep(time.Second)
				} else {
					return
				}
			}
		}
	}()
	go c.flusher()
	return c
}