lb

broker/client.go

@@ -2,7 +2,6 @@ package broker
 
 import (
 	"hmq/packets"
-	"math/rand"
 	"net"
 	"strings"
 	"sync"
@@ -222,30 +221,59 @@ func (c *client) ProcessPublishMessage(packet *packets.PublishPacket) {
 		}
 	}
 
-	idx := GenerateRangeNum(0, len(r.qsubs))
-	for {
-		sub := r.qsubs[idx]
-		if sub.client.typ == ROUTER {
-			if typ == ROUTER {
-				idx = GenerateRangeNum(0, len(r.qsubs))
-				continue
+	pre := 0
+	now := -1
+	t := "$queue/" + topic
+	cnt, exist := b.queues[t]
+	if exist {
+		log.Info("queue index : ", cnt)
+		for _, sub := range r.qsubs {
+			if sub.client.typ == ROUTER {
+				if c.typ == ROUTER {
+					continue
+				}
 			}
-		}
-		if sub != nil {
-			err := sub.client.WriterPacket(packet)
-			if err != nil {
-				log.Error("process will message for qsub error,  ", err)
+			if c.typ == CLIENT {
+				now = now + 1
+			} else {
+				now = now + sub.client.rsubs[t].num
 			}
-			break
+			if cnt >= pre && cnt <= now {
+				if sub != nil {
+					err := sub.client.WriterPacket(packet)
+					if err != nil {
+						log.Error("send publish error, ", err)
+					}
+				}
+
+				break
+			}
+			pre = now
 		}
 	}
 
+	length := getQueueSubscribeNum(r.qsubs)
+	if length > 0 {
+		b.queues[t] = (b.queues[t] + 1) % length
+	}
 }
 
-func GenerateRangeNum(min, max int) int {
-	// rand.Seed(time.Now().Unix())
-	randNum := rand.Intn(max-min) + min
-	return randNum
+func getQueueSubscribeNum(qsubs []*subscription) int {
+	topic := "$queue/"
+	if len(qsubs) < 1 {
+		return 0
+	} else {
+		topic = topic + qsubs[0].topic
+	}
+	num := 0
+	for _, sub := range qsubs {
+		if sub.client.typ == CLIENT {
+			num = num + 1
+		} else {
+			num = num + sub.client.rsubs[topic].num
+		}
+	}
+	return num
 }
 
 func (c *client) ProcessSubscribe(packet *packets.SubscribePacket) {
@@ -273,6 +301,9 @@ func (c *client) ProcessSubscribe(packet *packets.SubscribePacket) {
 		if queue {
 			if len(t) > 7 {
 				t = t[7:]
+				if _, exists := b.queues[topic]; !exists {
+					b.queues[topic] = 0
+				}
 			} else {
 				retcodes = append(retcodes, QosFailure)
 				continue