context

* pool

* pool

* wpool

README.md

@@ -16,43 +16,26 @@ $ go run main.go
 
 ## Usage of hmq:
 ~~~
-Usage of ./hmq:
+Usage: hmq [options]
-  -w int
+
-        worker num to process message, perfer (client num)/10. (default 1024)
+Broker Options:
-  -worker int
+    -w,  --worker <number>            Worker num to process message, perfer (client num)/10. (default 1024)
-        worker num to process message, perfer (client num)/10. (default 1024)
+    -p,  --port <port>                Use port for clients (default: 1883)
-  -h string
+         --host <host>                Network host to listen on. (default "0.0.0.0")
-        Network host to listen on. (default "0.0.0.0")
+    -ws, --wsport <port>              Use port for websocket monitoring
-  -host string
+    -wsp,--wspath <path>              Use path for websocket monitoring
-        Network host to listen on. (default "0.0.0.0")
+    -c,  --config <file>              Configuration file
-  -p string
+
-        Port to listen on. (default "1883")
+Logging Options:
-  -port string
+    -d, --debug <bool>                Enable debugging output (default false)
-        Port to listen on. (default "1883")
+    -D                                Debug enabled
-  -c string
+
-        config file for hmq
+Cluster Options:
-  -config string
+    -r,  --router  <rurl>             Router who maintenance cluster info
-        config file for hmq
+    -cp, --clusterport <cluster-port> Cluster listen port for others
-  -cluster string
+
-        Cluster ip from which members can connect.
+Common Options:
-  -cluster_listen string
+    -h, --help                        Show this message
-        Cluster ip from which members can connect.
-  -cluster_port string
-        Cluster port from which members can connect.
-  -cp string
-        Cluster port from which members can connect.
-  -r string
-        Router who maintenance cluster info
-  -router string
-        Router who maintenance cluster info
-  -ws_path string
-        path for ws to listen on
-  -ws_port string
-        port for ws to listen on
-  -wspath string
-        path for ws to listen on
-  -wsport string
-        port for ws to listen on
 ~~~
 
 ### hmq.config
@@ -105,6 +88,9 @@ Usage of ./hmq:
 ### Cluster
 ```bash
  1, start router for hmq  (https://github.com/fhmq/router.git)
+ 	$ go get github.com/fhmq/router
+ 	$ cd $GOPATH/github.com/fhmq/router
+ 	$ go run main.go
  2, config router in hmq.config  ("router": "127.0.0.1:9888")
  
 ```

broker/auth.go

@@ -3,12 +3,10 @@
 package broker
 
 import (
-	"strings"
-
 	"github.com/fhmq/hmq/lib/acl"
-	"go.uber.org/zap"
-
 	"github.com/fsnotify/fsnotify"
+	"go.uber.org/zap"
+	"strings"
 )
 
 const (

broker/broker.go

@@ -11,45 +11,63 @@ import (
 	"sync/atomic"
 	"time"
 
-	"github.com/fhmq/hmq/lib/acl"
-
 	"github.com/eclipse/paho.mqtt.golang/packets"
+	"github.com/fhmq/hmq/lib/acl"
+	"github.com/fhmq/hmq/pool"
 	"github.com/shirou/gopsutil/mem"
 	"go.uber.org/zap"
-
 	"golang.org/x/net/websocket"
-
-	"github.com/fhmq/hmq/logger"
 )
 
-var (
+const (
-	log = logger.Get().Named("Broker")
+	MessagePoolNum        = 1024
+	MessagePoolMessageNum = 1024
 )
 
+type Message struct {
+	client *client
+	packet packets.ControlPacket
+}
+
 type Broker struct {
-	id        string
+	id          string
-	cid       uint64
+	cid         uint64
-	mu        sync.Mutex
+	mu          sync.Mutex
-	config    *Config
+	config      *Config
-	tlsConfig *tls.Config
+	tlsConfig   *tls.Config
-	AclConfig *acl.ACLConfig
+	AclConfig   *acl.ACLConfig
-	clients   sync.Map
+	wpool       *pool.WorkerPool
-	routes    sync.Map
+	clients     sync.Map
-	remotes   sync.Map
+	routes      sync.Map
-	nodes     map[string]interface{}
+	remotes     sync.Map
-	sl        *Sublist
+	nodes       map[string]interface{}
-	rl        *RetainList
+	clusterPool chan *Message
-	queues    map[string]int
+	sl          *Sublist
+	rl          *RetainList
+	queues      map[string]int
+	// messagePool []chan *Message
+}
+
+func newMessagePool() []chan *Message {
+	pool := make([]chan *Message, 0)
+	for i := 0; i < MessagePoolNum; i++ {
+		ch := make(chan *Message, MessagePoolMessageNum)
+		pool = append(pool, ch)
+	}
+	return pool
 }
 
 func NewBroker(config *Config) (*Broker, error) {
 	b := &Broker{
-		id:     GenUniqueId(),
+		id:          GenUniqueId(),
-		config: config,
+		config:      config,
-		sl:     NewSublist(),
+		wpool:       pool.New(config.Worker),
-		rl:     NewRetainList(),
+		sl:          NewSublist(),
-		nodes:  make(map[string]interface{}),
+		rl:          NewRetainList(),
-		queues: make(map[string]int),
+		nodes:       make(map[string]interface{}),
+		queues:      make(map[string]int),
+		clusterPool: make(chan *Message),
+		// messagePool: newMessagePool(),
 	}
 	if b.config.TlsPort != "" {
 		tlsconfig, err := NewTLSConfig(b.config.TlsInfo)
@@ -71,12 +89,26 @@ func NewBroker(config *Config) (*Broker, error) {
 	return b, nil
 }
 
+func (b *Broker) SubmitWork(msg *Message) {
+	if b.wpool == nil {
+		b.wpool = pool.New(b.config.Worker)
+	}
+
+	if msg.client.typ == CLUSTER {
+		b.clusterPool <- msg
+	} else {
+		b.wpool.Submit(func() {
+			ProcessMessage(msg)
+		})
+	}
+
+}
+
 func (b *Broker) Start() {
 	if b == nil {
 		log.Error("broker is null")
 		return
 	}
-	StartDispatcher()
 
 	//listen clinet over tcp
 	if b.config.Port != "" {
@@ -100,6 +132,7 @@ func (b *Broker) Start() {
 
 	//connect on other node in cluster
 	if b.config.Router != "" {
+		go b.processClusterInfo()
 		b.ConnectToDiscovery()
 	}
 
@@ -124,7 +157,7 @@ func StateMonitor() {
 func (b *Broker) StartWebsocketListening() {
 	path := b.config.WsPath
 	hp := ":" + b.config.WsPort
-	log.Info("Start Websocket Listening on ", zap.String("hp", hp), zap.String("path", path))
+	log.Info("Start Websocket Listener on:", zap.String("hp", hp), zap.String("path", path))
 	http.Handle(path, websocket.Handler(b.wsHandler))
 	var err error
 	if b.config.WsTLS {
@@ -133,7 +166,7 @@ func (b *Broker) StartWebsocketListening() {
 		err = http.ListenAndServe(hp, nil)
 	}
 	if err != nil {
-		log.Error("ListenAndServe: " + err.Error())
+		log.Error("ListenAndServe:" + err.Error())
 		return
 	}
 }
@@ -142,7 +175,7 @@ func (b *Broker) wsHandler(ws *websocket.Conn) {
 	// io.Copy(ws, ws)
 	atomic.AddUint64(&b.cid, 1)
 	ws.PayloadType = websocket.BinaryFrame
-	b.handleConnection(CLIENT, ws, b.cid)
+	b.handleConnection(CLIENT, ws)
 }
 
 func (b *Broker) StartClientListening(Tls bool) {
@@ -181,7 +214,7 @@ func (b *Broker) StartClientListening(Tls bool) {
 		}
 		tmpDelay = ACCEPT_MIN_SLEEP
 		atomic.AddUint64(&b.cid, 1)
-		go b.handleConnection(CLIENT, conn, b.cid)
+		go b.handleConnection(CLIENT, conn)
 
 	}
 }
@@ -225,7 +258,6 @@ func (b *Broker) StartClusterListening() {
 		return
 	}
 
-	var idx uint64 = 0
 	tmpDelay := 10 * ACCEPT_MIN_SLEEP
 	for {
 		conn, err := l.Accept()
@@ -245,11 +277,11 @@ func (b *Broker) StartClusterListening() {
 		}
 		tmpDelay = ACCEPT_MIN_SLEEP
 
-		go b.handleConnection(ROUTER, conn, idx)
+		go b.handleConnection(ROUTER, conn)
 	}
 }
 
-func (b *Broker) handleConnection(typ int, conn net.Conn, idx uint64) {
+func (b *Broker) handleConnection(typ int, conn net.Conn) {
 	//process connect packet
 	packet, err := packets.ReadPacket(conn)
 	if err != nil {
@@ -303,39 +335,34 @@ func (b *Broker) handleConnection(typ int, conn net.Conn, idx uint64) {
 
 	cid := c.info.clientID
 
-	var msgPool *MessagePool
 	var exist bool
 	var old interface{}
 
 	switch typ {
 	case CLIENT:
-		msgPool = MSGPool[idx%MessagePoolNum].GetPool()
-		c.mp = msgPool
 		old, exist = b.clients.Load(cid)
 		if exist {
 			log.Warn("client exist, close old...", zap.String("clientID", c.info.clientID))
 			ol, ok := old.(*client)
 			if ok {
-				msg := &Message{client: c, packet: DisconnectdPacket}
+				ol.Close()
-				ol.mp.queue <- msg
 			}
 		}
 		b.clients.Store(cid, c)
 	case ROUTER:
-		msgPool = MSGPool[(MessagePoolNum + idx)].GetPool()
-		c.mp = msgPool
 		old, exist = b.routes.Load(cid)
 		if exist {
 			log.Warn("router exist, close old...")
 			ol, ok := old.(*client)
 			if ok {
-				msg := &Message{client: c, packet: DisconnectdPacket}
+				ol.Close()
-				ol.mp.queue <- msg
 			}
 		}
 		b.routes.Store(cid, c)
 	}
 
+	// mpool := b.messagePool[fnv1a.HashString64(cid)%MessagePoolNum]
+
 	c.readLoop()
 }
 
@@ -383,11 +410,22 @@ func (b *Broker) ConnectToDiscovery() {
 	c.SendConnect()
 	c.SendInfo()
 
-	c.mp = &MSGPool[(MessagePoolNum + 2)]
 	go c.readLoop()
 	go c.StartPing()
 }
 
+func (b *Broker) processClusterInfo() {
+	for {
+		msg, ok := <-b.clusterPool
+		if !ok {
+			log.Error("read message from cluster channel error")
+			return
+		}
+		ProcessMessage(msg)
+	}
+
+}
+
 func (b *Broker) connectRouter(id, addr string) {
 	var conn net.Conn
 	var err error
@@ -446,11 +484,9 @@ func (b *Broker) connectRouter(id, addr string) {
 	c.init()
 	b.remotes.Store(cid, c)
 
-	c.mp = MSGPool[(MessagePoolNum + 1)].GetPool()
-
 	c.SendConnect()
-	// c.SendInfo()
 
+	// mpool := b.messagePool[fnv1a.HashString64(cid)%MessagePoolNum]
 	go c.readLoop()
 	go c.StartPing()
 

broker/client.go

@@ -3,7 +3,10 @@
 package broker
 
 import (
+	"context"
+	"errors"
 	"net"
+	"reflect"
 	"strings"
 	"sync"
 	"time"
@@ -29,18 +32,18 @@ const (
 )
 
 type client struct {
-	typ    int
+	typ        int
-	mu     sync.Mutex
+	mu         sync.Mutex
-	broker *Broker
+	broker     *Broker
-	conn   net.Conn
+	conn       net.Conn
-	info   info
+	info       info
-	route  route
+	route      route
-	status int
+	status     int
-	closed chan int
+	smu        sync.RWMutex
-	smu    sync.RWMutex
+	subs       map[string]*subscription
-	mp     *MessagePool
+	rsubs      map[string]*subInfo
-	subs   map[string]*subscription
+	ctx        context.Context
-	rsubs  map[string]*subInfo
+	cancelFunc context.CancelFunc
 }
 
 type subInfo struct {
@@ -78,19 +81,20 @@ func (c *client) init() {
 	c.smu.Lock()
 	defer c.smu.Unlock()
 	c.status = Connected
-	c.closed = make(chan int, 1)
-
 	c.rsubs = make(map[string]*subInfo)
 	c.subs = make(map[string]*subscription, 10)
 	c.info.localIP = strings.Split(c.conn.LocalAddr().String(), ":")[0]
 	c.info.remoteIP = strings.Split(c.conn.RemoteAddr().String(), ":")[0]
+	c.ctx, c.cancelFunc = context.WithCancel(context.Background())
 }
 
 func (c *client) keepAlive(ch chan int) {
 	defer close(ch)
+
+	b := c.broker
+
 	keepalive := time.Duration(c.info.keepalive*3/2) * time.Second
 	timer := time.NewTimer(keepalive)
-	msgPool := c.mp
 
 	for {
 		select {
@@ -102,22 +106,22 @@ func (c *client) keepAlive(ch chan int) {
 				continue
 			}
 			log.Error("Client exceeded timeout, disconnecting. ", zap.String("ClientID", c.info.clientID), zap.Uint16("keepalive", c.info.keepalive))
+
 			msg := &Message{client: c, packet: DisconnectdPacket}
-			msgPool.queue <- msg
+			b.SubmitWork(msg)
+
 			timer.Stop()
 			return
-		case _, ok := <-c.closed:
+		case <-c.ctx.Done():
-			if !ok {
+			return
-				return
-			}
 		}
 	}
 }
 
 func (c *client) readLoop() {
 	nc := c.conn
-	msgPool := c.mp
+	b := c.broker
-	if nc == nil || msgPool == nil {
+	if nc == nil || b == nil {
 		return
 	}
 
@@ -125,23 +129,28 @@ func (c *client) readLoop() {
 	go c.keepAlive(ch)
 
 	for {
-		packet, err := packets.ReadPacket(nc)
+		select {
-		if err != nil {
+		case <-c.ctx.Done():
-			log.Error("read packet error: ", zap.Error(err), zap.String("ClientID", c.info.clientID))
+			return
-			break
+		default:
-		}
+			packet, err := packets.ReadPacket(nc)
+			if err != nil {
+				log.Error("read packet error: ", zap.Error(err), zap.String("ClientID", c.info.clientID))
+				msg := &Message{client: c, packet: DisconnectdPacket}
+				b.SubmitWork(msg)
+				return
+			}
+			// keepalive channel
+			ch <- 1
 
-		ch <- 1
+			msg := &Message{
-
+				client: c,
-		msg := &Message{
+				packet: packet,
-			client: c,
+			}
-			packet: packet,
+			b.SubmitWork(msg)
 		}
-		msgPool.queue <- msg
 	}
-	msg := &Message{client: c, packet: DisconnectdPacket}
+
-	msgPool.queue <- msg
-	msgPool.Reduce()
 }
 
 func ProcessMessage(msg *Message) {
@@ -150,10 +159,10 @@ func ProcessMessage(msg *Message) {
 	if ca == nil {
 		return
 	}
-	log.Debug("Recv message from client,", zap.String("ClientID", c.info.clientID))
+
+	log.Debug("Recv message:", zap.String("message type", reflect.TypeOf(msg.packet).String()[9:]), zap.String("ClientID", c.info.clientID))
 	switch ca.(type) {
 	case *packets.ConnackPacket:
-
 	case *packets.ConnectPacket:
 	case *packets.PublishPacket:
 		packet := ca.(*packets.PublishPacket)
@@ -237,6 +246,10 @@ func (c *client) ProcessPublishMessage(packet *packets.PublishPacket) {
 	topic := packet.TopicName
 
 	r := b.sl.Match(topic)
+	if r == nil {
+		return
+	}
+
 	// log.Info("psubs num: ", len(r.psubs))
 	if len(r.qsubs) == 0 && len(r.psubs) == 0 {
 		return
@@ -399,6 +412,9 @@ func (c *client) ProcessSubscribe(packet *packets.SubscribePacket) {
 	//process retain message
 	for _, t := range topics {
 		packets := b.rl.Match(t)
+		if packets == nil {
+			continue
+		}
 		for _, packet := range packets {
 			log.Info("process retain  message: ", zap.Any("packet", packet), zap.String("ClientID", c.info.clientID))
 			if packet != nil {
@@ -487,9 +503,13 @@ func (c *client) Close() {
 		c.smu.Unlock()
 		return
 	}
+
+	c.cancelFunc()
+
+	c.status = Disconnected
 	//wait for message complete
 	time.Sleep(1 * time.Second)
-	c.status = Disconnected
+	// c.status = Disconnected
 
 	if c.conn != nil {
 		c.conn.Close()
@@ -498,8 +518,6 @@ func (c *client) Close() {
 
 	c.smu.Unlock()
 
-	close(c.closed)
-
 	b := c.broker
 	subs := c.subs
 	if b != nil {
@@ -529,9 +547,17 @@ func (c *client) Close() {
 }
 
 func (c *client) WriterPacket(packet packets.ControlPacket) error {
+	if c.status == Disconnected {
+		return nil
+	}
+
 	if packet == nil {
 		return nil
 	}
+	if c.conn == nil {
+		c.Close()
+		return errors.New("connect lost ....")
+	}
 
 	c.mu.Lock()
 	err := packet.Write(c.conn)

broker/config.go

@@ -9,9 +9,10 @@ import (
 	"errors"
 	"flag"
 	"fmt"
-	"io/ioutil"
+	"github.com/fhmq/hmq/logger"
-
 	"go.uber.org/zap"
+	"io/ioutil"
+	"os"
 )
 
 type Config struct {
@@ -28,6 +29,7 @@ type Config struct {
 	TlsInfo TLSInfo   `json:"tlsInfo"`
 	Acl     bool      `json:"acl"`
 	AclConf string    `json:"aclConf"`
+	Debug   bool      `json:"-"`
 }
 
 type RouteInfo struct {
@@ -49,30 +51,64 @@ var DefaultConfig *Config = &Config{
 	Acl:    false,
 }
 
-func ConfigureConfig() (*Config, error) {
+var (
+	log *zap.Logger
+)
+
+func showHelp() {
+	fmt.Printf("%s\n", usageStr)
+	os.Exit(0)
+}
+
+func ConfigureConfig(args []string) (*Config, error) {
 	config := &Config{}
 	var (
+		help       bool
 		configFile string
 	)
-	flag.IntVar(&config.Worker, "w", 1024, "worker num to process message, perfer (client num)/10.")
+	fs := flag.NewFlagSet("hmq-broker", flag.ExitOnError)
-	flag.IntVar(&config.Worker, "worker", 1024, "worker num to process message, perfer (client num)/10.")
+	fs.Usage = showHelp
-	flag.StringVar(&config.Port, "port", "1883", "Port to listen on.")
+
-	flag.StringVar(&config.Port, "p", "1883", "Port to listen on.")
+	fs.BoolVar(&help, "h", false, "Show this message.")
-	flag.StringVar(&config.Host, "host", "0.0.0.0", "Network host to listen on.")
+	fs.BoolVar(&help, "help", false, "Show this message.")
-	flag.StringVar(&config.Host, "h", "0.0.0.0", "Network host to listen on.")
+	fs.IntVar(&config.Worker, "w", 1024, "worker num to process message, perfer (client num)/10.")
-	flag.StringVar(&config.Cluster.Host, "cluster", "", "Cluster ip from which members can connect.")
+	fs.IntVar(&config.Worker, "worker", 1024, "worker num to process message, perfer (client num)/10.")
-	flag.StringVar(&config.Cluster.Host, "cluster_listen", "", "Cluster ip from which members can connect.")
+	fs.StringVar(&config.Port, "port", "1883", "Port to listen on.")
-	flag.StringVar(&config.Cluster.Port, "cp", "", "Cluster port from which members can connect.")
+	fs.StringVar(&config.Port, "p", "1883", "Port to listen on.")
-	flag.StringVar(&config.Cluster.Port, "cluster_port", "", "Cluster port from which members can connect.")
+	fs.StringVar(&config.Host, "host", "0.0.0.0", "Network host to listen on")
-	flag.StringVar(&config.Router, "r", "", "Router who maintenance cluster info")
+	fs.StringVar(&config.Cluster.Port, "cp", "", "Cluster port from which members can connect.")
-	flag.StringVar(&config.Router, "router", "", "Router who maintenance cluster info")
+	fs.StringVar(&config.Cluster.Port, "clusterport", "", "Cluster port from which members can connect.")
-	flag.StringVar(&config.WsPort, "wsport", "", "port for ws to listen on")
+	fs.StringVar(&config.Router, "r", "", "Router who maintenance cluster info")
-	flag.StringVar(&config.WsPort, "ws_port", "", "port for ws to listen on")
+	fs.StringVar(&config.Router, "router", "", "Router who maintenance cluster info")
-	flag.StringVar(&config.WsPath, "wspath", "", "path for ws to listen on")
+	fs.StringVar(&config.WsPort, "ws", "", "port for ws to listen on")
-	flag.StringVar(&config.WsPath, "ws_path", "", "path for ws to listen on")
+	fs.StringVar(&config.WsPort, "wsport", "", "port for ws to listen on")
-	flag.StringVar(&configFile, "config", "", "config file for hmq")
+	fs.StringVar(&config.WsPath, "wsp", "", "path for ws to listen on")
-	flag.StringVar(&configFile, "c", "", "config file for hmq")
+	fs.StringVar(&config.WsPath, "wspath", "", "path for ws to listen on")
-	flag.Parse()
+	fs.StringVar(&configFile, "config", "", "config file for hmq")
+	fs.StringVar(&configFile, "c", "", "config file for hmq")
+	fs.BoolVar(&config.Debug, "debug", false, "enable Debug logging.")
+	fs.BoolVar(&config.Debug, "d", false, "enable Debug logging.")
+
+	fs.Bool("D", true, "enable Debug logging.")
+
+	if err := fs.Parse(args); err != nil {
+		return nil, err
+	}
+
+	if help {
+		showHelp()
+		return nil, nil
+	}
+
+	fs.Visit(func(f *flag.Flag) {
+		switch f.Name {
+		case "D":
+			config.Debug = true
+		}
+	})
+
+	logger.InitLogger(config.Debug)
+	log = logger.Get().Named("Broker")
 
 	if configFile != "" {
 		tmpConfig, e := LoadConfig(configFile)
@@ -116,8 +152,6 @@ func (config *Config) check() error {
 		config.Worker = 1024
 	}
 
-	WorkNum = config.Worker
-
 	if config.Port != "" {
 		if config.Host == "" {
 			config.Host = "0.0.0.0"

broker/dispatcher.go

@@ -1,44 +0,0 @@
-/* Copyright (c) 2018, joy.zhou <chowyu08@gmail.com>
- */
-package broker
-
-var WorkNum int
-
-type Dispatcher struct {
-	WorkerPool chan chan *Message
-}
-
-func StartDispatcher() {
-	InitMessagePool()
-	dispatcher := NewDispatcher()
-	dispatcher.Run()
-}
-
-func (d *Dispatcher) Run() {
-	// starting n number of workers
-	for i := 0; i < WorkNum; i++ {
-		worker := NewWorker(d.WorkerPool)
-		worker.Start()
-	}
-	go d.dispatch()
-}
-
-func NewDispatcher() *Dispatcher {
-	pool := make(chan chan *Message, WorkNum)
-	return &Dispatcher{WorkerPool: pool}
-}
-
-func (d *Dispatcher) dispatch() {
-	for i := 0; i < (MessagePoolNum + 3); i++ {
-		go func(idx int) {
-			for {
-				select {
-				case msg := <-MSGPool[idx].queue:
-					msgChannel := <-d.WorkerPool
-					msgChannel <- msg
-				}
-			}
-		}(i)
-	}
-
-}

broker/info.go

@@ -6,10 +6,9 @@ import (
 	"fmt"
 	"time"
 
+	simplejson "github.com/bitly/go-simplejson"
 	"github.com/eclipse/paho.mqtt.golang/packets"
 	"go.uber.org/zap"
-
-	simplejson "github.com/bitly/go-simplejson"
 )
 
 func (c *client) SendInfo() {
@@ -37,10 +36,8 @@ func (c *client) StartPing() {
 				log.Error("ping error: ", zap.Error(err))
 				c.Close()
 			}
-		case _, ok := <-c.closed:
+		case <-c.ctx.Done():
-			if !ok {
+			return
-				return
-			}
 		}
 	}
 }

broker/msgpool.go

@@ -1,64 +0,0 @@
-/* Copyright (c) 2018, joy.zhou <chowyu08@gmail.com>
- */
-package broker
-
-import (
-	"sync"
-
-	"github.com/eclipse/paho.mqtt.golang/packets"
-)
-
-const (
-	MaxUser               = 1024 * 1024
-	MessagePoolNum        = 1024
-	MessagePoolUser       = MaxUser / MessagePoolNum
-	MessagePoolMessageNum = MaxUser / MessagePoolNum * 4
-)
-
-type Message struct {
-	client *client
-	packet packets.ControlPacket
-}
-
-var (
-	MSGPool []MessagePool
-)
-
-type MessagePool struct {
-	l       sync.Mutex
-	maxuser int
-	user    int
-	queue   chan *Message
-}
-
-func InitMessagePool() {
-	MSGPool = make([]MessagePool, (MessagePoolNum + 3))
-	for i := 0; i < (MessagePoolNum + 3); i++ {
-		MSGPool[i].Init(MessagePoolUser, MessagePoolMessageNum)
-	}
-}
-
-func (p *MessagePool) Init(num int, maxusernum int) {
-	p.maxuser = maxusernum
-	p.queue = make(chan *Message, num)
-}
-
-func (p *MessagePool) GetPool() *MessagePool {
-	p.l.Lock()
-	if p.user+1 < p.maxuser {
-		p.user += 1
-		p.l.Unlock()
-		return p
-	} else {
-		p.l.Unlock()
-		return nil
-	}
-
-}
-
-func (p *MessagePool) Reduce() {
-	p.l.Lock()
-	p.user -= 1
-	p.l.Unlock()
-
-}

broker/retain.go

@@ -1,9 +1,8 @@
 package broker
 
 import (
-	"sync"
-
 	"github.com/eclipse/paho.mqtt.golang/packets"
+	"sync"
 )
 
 type RetainList struct {

broker/sublist.go

@@ -4,9 +4,8 @@ package broker
 
 import (
 	"errors"
-	"sync"
-
 	"go.uber.org/zap"
+	"sync"
 )
 
 // A result structure better optimized for queue subs.

broker/usage.go

@@ -0,0 +1,24 @@
+package broker
+
+var usageStr = `
+Usage: hmq [options]
+
+Broker Options:
+    -w,  --worker <number>            Worker num to process message, perfer (client num)/10. (default 1024)
+    -p,  --port <port>                Use port for clients (default: 1883)
+         --host <host>                Network host to listen on. (default "0.0.0.0")
+    -ws, --wsport <port>              Use port for websocket monitoring
+    -wsp,--wspath <path>              Use path for websocket monitoring
+    -c,  --config <file>              Configuration file
+
+Logging Options:
+    -d, --debug <bool>                Enable debugging output (default false)
+    -D                                Debug and trace
+
+Cluster Options:
+    -r,  --router  <rurl>             Router who maintenance cluster info
+    -cp, --clusterport <cluster-port> Cluster listen port for others
+
+Common Options:
+    -h, --help                        Show this message
+`

broker/worker.go

@@ -1,39 +0,0 @@
-/* Copyright (c) 2018, joy.zhou <chowyu08@gmail.com>
- */
-package broker
-
-type Worker struct {
-	WorkerPool chan chan *Message
-	MsgChannel chan *Message
-	quit       chan bool
-}
-
-func NewWorker(workerPool chan chan *Message) Worker {
-	return Worker{
-		WorkerPool: workerPool,
-		MsgChannel: make(chan *Message),
-		quit:       make(chan bool)}
-}
-
-func (w Worker) Start() {
-	go func() {
-		for {
-			// register the current worker into the worker queue.
-			w.WorkerPool <- w.MsgChannel
-			select {
-			case msg := <-w.MsgChannel:
-				// we have received a work request.
-				ProcessMessage(msg)
-			case <-w.quit:
-				return
-			}
-		}
-	}()
-}
-
-// Stop signals the worker to stop listening for work requests.
-func (w Worker) Stop() {
-	go func() {
-		w.quit <- true
-	}()
-}

logger/logger.go

@@ -9,7 +9,6 @@ import (
 
 var (
 	// env can be setup at build time with Go Linker. Value could be prod or whatever else for dev env
-	env      string
 	instance *zap.Logger
 	logCfg   zap.Config
 )
@@ -28,13 +27,13 @@ func NewProdLogger() (*zap.Logger, error) {
 	return logCfg.Build()
 }
 
-func init() {
+func InitLogger(debug bool) {
 	var err error
 	var log *zap.Logger
-	if env == "prod" {
+	if debug {
-		log, err = NewProdLogger()
-	} else {
 		log, err = NewDevLogger()
+	} else {
+		log, err = NewProdLogger()
 	}
 	if err != nil {
 		panic("Unable to create a logger.")

main.go

@@ -7,36 +7,30 @@ copyright notice and this permission notice appear in all copies.
 package main
 
 import (
+	"fmt"
+	"github.com/fhmq/hmq/broker"
 	"os"
 	"os/signal"
 	"runtime"
-
-	"github.com/fhmq/hmq/broker"
-	"github.com/fhmq/hmq/logger"
-	"go.uber.org/zap"
-)
-
-var (
-	log = logger.Get().Named("Main")
 )
 
 func main() {
 	runtime.GOMAXPROCS(runtime.NumCPU())
-	config, err := broker.ConfigureConfig()
+	config, err := broker.ConfigureConfig(os.Args[1:])
 	if err != nil {
-		log.Error("configure broker config error: ", zap.Error(err))
+		fmt.Println("configure broker config error: ", err)
 		return
 	}
 
 	b, err := broker.NewBroker(config)
 	if err != nil {
-		log.Error("New Broker error: ", zap.Error(err))
+		fmt.Println("New Broker error: ", err)
 		return
 	}
 	b.Start()
 
 	s := waitForSignal()
-	log.Info("signal received, broker closed.", zap.Any("signal", s))
+	fmt.Println("signal received, broker closed.", s)
 }
 
 func waitForSignal() os.Signal {

pool/pool.go

@@ -0,0 +1,166 @@
+package pool
+
+import "time"
+
+const (
+	// This value is the size of the queue that workers register their
+	// availability to the dispatcher.  There may be hundreds of workers, but
+	// only a small channel is needed to register some of the workers.
+	readyQueueSize = 16
+
+	// If worker pool receives no new work for this period of time, then stop
+	// a worker goroutine.
+	idleTimeoutSec = 5
+)
+
+type WorkerPool struct {
+	maxWorkers   int
+	timeout      time.Duration
+	taskQueue    chan func()
+	readyWorkers chan chan func()
+	stoppedChan  chan struct{}
+}
+
+func New(maxWorkers int) *WorkerPool {
+	// There must be at least one worker.
+	if maxWorkers < 1 {
+		maxWorkers = 1
+	}
+
+	// taskQueue is unbuffered since items are always removed immediately.
+	pool := &WorkerPool{
+		taskQueue:    make(chan func()),
+		maxWorkers:   maxWorkers,
+		readyWorkers: make(chan chan func(), readyQueueSize),
+		timeout:      time.Second * idleTimeoutSec,
+		stoppedChan:  make(chan struct{}),
+	}
+
+	// Start the task dispatcher.
+	go pool.dispatch()
+
+	return pool
+}
+
+func (p *WorkerPool) Stop() {
+	if p.Stopped() {
+		return
+	}
+	close(p.taskQueue)
+	<-p.stoppedChan
+}
+
+func (p *WorkerPool) Stopped() bool {
+	select {
+	case <-p.stoppedChan:
+		return true
+	default:
+	}
+	return false
+}
+
+func (p *WorkerPool) Submit(task func()) {
+	if task != nil {
+		p.taskQueue <- task
+	}
+}
+
+func (p *WorkerPool) SubmitWait(task func()) {
+	if task == nil {
+		return
+	}
+	doneChan := make(chan struct{})
+	p.taskQueue <- func() {
+		task()
+		close(doneChan)
+	}
+	<-doneChan
+}
+
+func (p *WorkerPool) dispatch() {
+	defer close(p.stoppedChan)
+	timeout := time.NewTimer(p.timeout)
+	var workerCount int
+	var task func()
+	var ok bool
+	var workerTaskChan chan func()
+	startReady := make(chan chan func())
+Loop:
+	for {
+		timeout.Reset(p.timeout)
+		select {
+		case task, ok = <-p.taskQueue:
+			if !ok {
+				break Loop
+			}
+			// Got a task to do.
+			select {
+			case workerTaskChan = <-p.readyWorkers:
+				// A worker is ready, so give task to worker.
+				workerTaskChan <- task
+			default:
+				// No workers ready.
+				// Create a new worker, if not at max.
+				if workerCount < p.maxWorkers {
+					workerCount++
+					go func(t func()) {
+						startWorker(startReady, p.readyWorkers)
+						// Submit the task when the new worker.
+						taskChan := <-startReady
+						taskChan <- t
+					}(task)
+				} else {
+					// Start a goroutine to submit the task when an existing
+					// worker is ready.
+					go func(t func()) {
+						taskChan := <-p.readyWorkers
+						taskChan <- t
+					}(task)
+				}
+			}
+		case <-timeout.C:
+			// Timed out waiting for work to arrive.  Kill a ready worker.
+			if workerCount > 0 {
+				select {
+				case workerTaskChan = <-p.readyWorkers:
+					// A worker is ready, so kill.
+					close(workerTaskChan)
+					workerCount--
+				default:
+					// No work, but no ready workers.  All workers are busy.
+				}
+			}
+		}
+	}
+
+	// Stop all remaining workers as they become ready.
+	for workerCount > 0 {
+		workerTaskChan = <-p.readyWorkers
+		close(workerTaskChan)
+		workerCount--
+	}
+}
+
+func startWorker(startReady, readyWorkers chan chan func()) {
+	go func() {
+		taskChan := make(chan func())
+		var task func()
+		var ok bool
+		// Register availability on starReady channel.
+		startReady <- taskChan
+		for {
+			// Read task from dispatcher.
+			task, ok = <-taskChan
+			if !ok {
+				// Dispatcher has told worker to stop.
+				break
+			}
+
+			// Execute the task.
+			task()
+
+			// Register availability on readyWorkers channel.
+			readyWorkers <- taskChan
+		}
+	}()
+}