From 4662463c168420dd4502f5ca082d0d17841f4d98 Mon Sep 17 00:00:00 2001
From: Kurnia D Win <kurnia.d.win@gmail.com>
Date: Thu, 11 Apr 2019 14:27:54 +0700
Subject: [PATCH] improve cache

---
 output.go | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/output.go b/output.go
index 022b0ae..26df469 100644
--- a/output.go
+++ b/output.go
@@ -230,6 +230,9 @@ func (o *outputRouter) getWriter(ip net.IP) *outputWriter {
 
 	var w *outputWriter
 	o.Lock()
+	if ret, ok := o.cache[ipnumber]; ok {
+		return ret.value
+	}
 	for _, v := range o.router {
 		if v.filter.Contains(ip) {
 			w = v