From fa45cd87a713f707cbe77b2b7516feaf77fb68ce Mon Sep 17 00:00:00 2001
From: Siraaj Khandkar <siraaj@khandkar.net>
Date: Thu, 16 Aug 2018 13:01:46 -0400
Subject: [PATCH] Comment on the effective meaning of ttl=0

---
 bin/khatus_bar | 1 +
 1 file changed, 1 insertion(+)

diff --git a/bin/khatus_bar b/bin/khatus_bar
index ed3d8c4..bddf0b9 100755
--- a/bin/khatus_bar
+++ b/bin/khatus_bar
@@ -51,6 +51,7 @@ function Data_get(src, key, ttl,    time, age, is_expired) {
     time = Data_get_time()
     A_time[src, key] = time
     age = time - M_time[src, key]
+    # ttl = 0 => forever
     is_expired = ttl && age > ttl
     return is_expired ? "" : Data[src, key]
 }
-- 
2.20.1