d

broker/broker.go

@@ -0,0 +1,53 @@
+package broker
+
+import (
+	"net"
+	"time"
+
+	log "github.com/cihub/seelog"
+)
+
+type Broker struct {
+}
+
+func NewBroker() *Broker {
+	return &Broker{}
+}
+func (b *Broker) StartListening() {
+	l, e := net.Listen("tcp", "0.0.0.0:1883")
+	if e != nil {
+		log.Error("Error listening on ", e)
+		return
+	}
+	tmpDelay := 10 * ACCEPT_MIN_SLEEP
+	for {
+		conn, err := l.Accept()
+		if err != nil {
+			if ne, ok := err.(net.Error); ok && ne.Temporary() {
+				log.Error("Temporary Client Accept Error(%v), sleeping %dms",
+					ne, tmpDelay/time.Millisecond)
+				time.Sleep(tmpDelay)
+				tmpDelay *= 2
+				if tmpDelay > ACCEPT_MAX_SLEEP {
+					tmpDelay = ACCEPT_MAX_SLEEP
+				}
+			} else {
+				log.Error("Accept error: %v", err)
+			}
+			continue
+		}
+		tmpDelay = ACCEPT_MIN_SLEEP
+		go handleConnection(conn)
+	}
+}
+
+func handleConnection(conn net.Conn) {
+
+	//process connect packet
+	connMsg, err := ReadPacket(conn)
+	if err != nil {
+		log.Error("read connect packet error: ", err)
+		return
+	}
+
+}