From e72f8a26c8b96ae75f46ff6b2c7e4c6f5bc14ce2 Mon Sep 17 00:00:00 2001
From: Darien Raymond <admin@v2ray.com>
Date: Sun, 13 Nov 2016 22:29:31 +0100
Subject: [PATCH] min timeout

---
 transport/internet/kcp/receiving.go | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/transport/internet/kcp/receiving.go b/transport/internet/kcp/receiving.go
index c43187231..2469063f1 100644
--- a/transport/internet/kcp/receiving.go
+++ b/transport/internet/kcp/receiving.go
@@ -102,7 +102,11 @@ func (this *AckList) Flush(current uint32, rto uint32) {
 		if this.nextFlush[i] <= current {
 			seg.PutNumber(this.numbers[i])
 			seg.PutTimestamp(this.timestamps[i])
-			this.nextFlush[i] = current + rto/4
+			timeout := rto / 4
+			if timeout < 20 {
+				timeout = 20
+			}
+			this.nextFlush[i] = current + timeout
 		}
 	}
 	if seg.Count > 0 {