From e6f94fc9f10781f91f19de56d63157a19f48ae88 Mon Sep 17 00:00:00 2001
From: lemmi <lemmi@nerd2nerd.org>
Date: Thu, 16 Dec 2021 09:11:39 +0100
Subject: [PATCH] clear statistic of former garbage collected routes

---
 main.go | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/main.go b/main.go
index 4365846..5966d0c 100644
--- a/main.go
+++ b/main.go
@@ -143,6 +143,7 @@ func (rs *routeStats) add(prefix netaddr.IPPrefix) {
 		} else {
 			delete(rs.gcstats, r.Dst)
 			r.LastUpdate = time.Time{}
+			r.UnreachableSince = time.Time{}
 		}
 	}
 
@@ -169,8 +170,13 @@ func (rs *routeStats) del(prefix netaddr.IPPrefix) {
 	rs.Lock()
 	defer rs.Unlock()
 
-	r := rs.stats[prefix]
-	if r == nil {
+	var r *route
+
+	if r = rs.gcstats[prefix]; r != nil {
+		delete(rs.gcstats, prefix)
+		return
+	}
+	if r = rs.stats[prefix]; r == nil {
 		return
 	}