From c5170a36f0f8d1c7d61a3e3cd4e8d31280dc2a27 Mon Sep 17 00:00:00 2001
From: v2ray <admin@v2ray.com>
Date: Wed, 29 Jun 2016 13:42:11 +0200
Subject: [PATCH] agreesively close unresponding connections

---
 transport/internet/kcp/kcp.go | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/transport/internet/kcp/kcp.go b/transport/internet/kcp/kcp.go
index 69e8a058..48598623 100644
--- a/transport/internet/kcp/kcp.go
+++ b/transport/internet/kcp/kcp.go
@@ -377,6 +377,10 @@ func (kcp *KCP) flush() {
 	if kcp.state == StateTerminated {
 		return
 	}
+	if kcp.state == StateActive && _itimediff(kcp.current, kcp.lastIncomingTime) >= 30000 {
+		kcp.OnClose()
+	}
+
 	if kcp.state == StateTerminating {
 		kcp.output.Write(&CmdOnlySegment{
 			Conv: kcp.conv,