diff --git a/rpc_client.go b/rpc_client.go
index 975f979..3001de0 100644
--- a/rpc_client.go
+++ b/rpc_client.go
@@ -58,7 +58,11 @@ func (cli *RPCClient) CheckConnect() {
 		return
 	}
 
-	cli.conn = conn
+	cli.Lock(func() bool {
+		cli.conn = conn
+		return true
+	})
+
 	go cli.run()
 }
 
@@ -99,16 +103,22 @@ func (cli *RPCClient) run() {
 
 	buf := bytes.NewBuffer(nil)
 	for {
+
 		select {
 		case <-cli.trigger:
 		case <-ticker.C:
 		}
 
-		cli.Lock(func() bool {
+		if !cli.Lock(func() bool {
+			if len(cli.Frames) == 0 {
+				return false
+			}
 			Compress(buf, cli.Frames)
 			cli.Frames = cli.Frames[:0]
 			return true
-		})
+		}) {
+			continue
+		}
 
 		// 发到对面的网卡
 		err = stream.Send(&gen.RequestFrames{
@@ -117,7 +127,6 @@ func (cli *RPCClient) run() {
 		if err != nil {
 			log.Panic(err)
 		}
-
 		buf.Reset()
 	}
 }