From 058b21100da6f65c30ed24d56fe3d33819dd0df8 Mon Sep 17 00:00:00 2001
From: zhangmeng <775834166@qq.com>
Date: 星期二, 27 八月 2019 15:06:20 +0800
Subject: [PATCH] recv2 ret len

---
 nng.go |   18 ++++++++++++++++--
 1 files changed, 16 insertions(+), 2 deletions(-)

diff --git a/nng.go b/nng.go
index 751feac..32dffab 100644
--- a/nng.go
+++ b/nng.go
@@ -33,6 +33,9 @@
 
 // Send impl interface Diliver
 func (n *NNG) Send(data []byte) error {
+	if n == nil {
+		return errors.New("please init NNG first")
+	}
 	var err error
 	if n.sock == nil {
 		n.sock, err = n.makeNNG(agent)
@@ -54,6 +57,10 @@
 
 // Recv impl interface Diliver
 func (n *NNG) Recv() ([]byte, error) {
+	if n == nil {
+		return nil, errors.New("please init NNG first")
+	}
+
 	var err error
 
 	if n.sock == nil {
@@ -72,9 +79,16 @@
 
 }
 
+// Recv2 impl interface
+func (n *NNG) Recv2(data []byte) (l int, err error) {
+	data, err = n.Recv()
+	l = len(data)
+	return l, err
+}
+
 // Close impl interface Deliver
 func (n *NNG) Close() {
-	if n.sock != nil {
+	if n != nil && n.sock != nil {
 		n.sock.Close()
 		n.sock = nil
 	}
@@ -120,7 +134,7 @@
 	switch n.mode {
 	case Bus:
 		sock, err = n.busMakeNNG(typ)
-	case ReqRep:
+	case ReqRep, SurvResp:
 		sock, err = n.rrMakeNNG(typ)
 	default:
 		sock, err = n.ppMakeNNG(typ)

--
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