1 files changed, 37 insertions, 0 deletions
diff --git a/lib/livestatus/countaggregator.hpp b/lib/livestatus/countaggregator.hpp
new file mode 100644
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+++ b/lib/livestatus/countaggregator.hpp
@@ -0,0 +1,37 @@
+/* Icinga 2 | (c) 2012 Icinga GmbH | GPLv2+ */
+
+#ifndef COUNTAGGREGATOR_H
+#define COUNTAGGREGATOR_H
+
+#include "livestatus/table.hpp"
+#include "livestatus/aggregator.hpp"
+
+namespace icinga
+{
+
+/**
+ * @ingroup livestatus
+ */
+struct CountAggregatorState final : public AggregatorState
+{
+	int Count{0};
+};
+
+/**
+ * @ingroup livestatus
+ */
+class CountAggregator final : public Aggregator
+{
+public:
+	DECLARE_PTR_TYPEDEFS(CountAggregator);
+
+	void Apply(const Table::Ptr& table, const Value& row, AggregatorState **) override;
+	double GetResultAndFreeState(AggregatorState *state) const override;
+
+private:
+	static CountAggregatorState *EnsureState(AggregatorState **state);
+};
+
+}
+
+#endif /* COUNTAGGREGATOR_H */