add control message to data message

weed/mq/client/pub_client/publish.go

@@ -29,8 +29,10 @@ func (p *TopicPublisher) FinishPublish() error {
 	if inputBuffers, found := p.partition2Buffer.AllIntersections(0, pub_balancer.MaxPartitionCount); found {
 		for _, inputBuffer := range inputBuffers {
 			inputBuffer.Enqueue(&mq_pb.DataMessage{
-				IsClose: true,
 				TsNs:  time.Now().UnixNano(),
+				Ctrl: &mq_pb.ControlMessage{
+					IsClose: true,
+				},
 			})
 		}
 	}