From d20a4669ab71b905aade7b673986442eace055d4 Mon Sep 17 00:00:00 2001
From: "lizheng.lz1998" <lizheng.lz1998@bytedance.com>
Date: Sat, 17 Jul 2021 15:00:15 +0800
Subject: [PATCH] update sendAndWait

---
 client/client.go | 11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)

diff --git a/client/client.go b/client/client.go
index dc8fe545..124b1bd1 100644
--- a/client/client.go
+++ b/client/client.go
@@ -881,11 +881,6 @@ func (c *QQClient) sendAndWait(seq uint16, pkt []byte, params ...requestParams)
 		Error    error
 	}
 
-	err := c.send(pkt)
-	if err != nil {
-		return nil, err
-	}
-
 	ch := make(chan T)
 	defer close(ch)
 
@@ -903,6 +898,12 @@ func (c *QQClient) sendAndWait(seq uint16, pkt []byte, params ...requestParams)
 		}
 	}, params: p})
 
+	err := c.send(pkt)
+	if err != nil {
+		c.handlers.Delete(seq)
+		return nil, err
+	}
+
 	retry := 0
 	for {
 		select {