Make sure flapping counters aren't negative.

diff --git a/lib/icinga/service-flapping.cpp b/lib/icinga/service-flapping.cpp
index 8ade1addd4def9f3f5d091907b8f6adae1a3e729..6791ab4ba17ca5f904ebe6e5222268ade7fc2a76 100644 (file)
--- a/lib/icinga/service-flapping.cpp
+++ b/lib/icinga/service-flapping.cpp
@@ -77,6 +77,12 @@ void Service::UpdateFlappingStatus(bool stateChange)
        else
                negative += diff;
 
+       if (positive < 0)
+               positive = 0;
+
+       if (negative < 0)
+               negative = 0;
+
        Log(LogDebug, "icinga", "Flapping counter for '" + GetName() + "' is positive=" + Convert::ToString(positive) + ", negative=" + Convert::ToString(negative));
 
        m_FlappingPositive = positive;