From 49ab7946c71a7eb824d43048340accda875ebe0d Mon Sep 17 00:00:00 2001
From: "J. David Lee" <johnl@crumpington.com>
Date: Thu, 27 Jun 2019 21:41:05 +0200
Subject: [PATCH] Souce can only be timed out if timeout is non-zero.

---
 types.go | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/types.go b/types.go
index d9f6db5..6a588d7 100644
--- a/types.go
+++ b/types.go
@@ -18,7 +18,8 @@ type Source struct {
 }
 
 func (s Source) TimedOut() bool {
-	return time.Since(s.LastSeenAt) > time.Duration(s.AlertTimeout)*time.Second
+	return s.AlertTimeout != 0 &&
+		time.Since(s.LastSeenAt) > time.Duration(s.AlertTimeout)*time.Second
 }
 
 func (s Source) RequiresAlertForTimeout() bool {