From 44234c04ed60fa466530138a9959ada754c89bc1 Mon Sep 17 00:00:00 2001
From: xtaci <daniel820313@gmail.com>
Date: Fri, 22 Mar 2019 01:56:54 +0800
Subject: [PATCH] bugfix in sending remainning

---
 kcp.go | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kcp.go b/kcp.go
index 30536560..f9b68ebd 100644
--- a/kcp.go
+++ b/kcp.go
@@ -827,7 +827,7 @@ func (kcp *KCP) flush(ackOnly bool) uint32 {
 
 	// flash remain segments
 	size := len(buffer) - len(ptr)
-	if size > 0 {
+	if size > kcp.keep {
 		kcp.output(buffer, size)
 	}