added clean-up to DnsCache: will remove very old entries after 60 days

[pingcheck] / src / dns / timetolive.cpp

diff --git a/src/dns/timetolive.cpp b/src/dns/timetolive.cpp
index 4d628eb..87232df 100644 (file)
--- a/src/dns/timetolive.cpp
+++ b/src/dns/timetolive.cpp
@@ -74,3 +74,8 @@ uint32_t TimeToLive::get_updated_value() const
     else
         return original_ttl - elapsed_seconds;
 }
+
+bool TimeToLive::was_set_before(const ptime &threshold) const
+{
+    return TtlSetTime < threshold;
+}