granicus.if.org Git - icinga2/blob - lib/livestatus/stdaggregator.hpp

   1 /* Icinga 2 | (c) 2012 Icinga GmbH | GPLv2+ */
   2
   3 #ifndef STDAGGREGATOR_H
   4 #define STDAGGREGATOR_H
   5
   6 #include "livestatus/table.hpp"
   7 #include "livestatus/aggregator.hpp"
   8
   9 namespace icinga
  10 {
  11
  12 /**
  13  * @ingroup livestatus
  14  */
  15 struct StdAggregatorState final : public AggregatorState
  16 {
  17         double StdSum{0};
  18         double StdQSum{0};
  19         double StdCount{0};
  20 };
  21
  22 /**
  23  * @ingroup livestatus
  24  */
  25 class StdAggregator final : public Aggregator
  26 {
  27 public:
  28         DECLARE_PTR_TYPEDEFS(StdAggregator);
  29
  30         StdAggregator(String attr);
  31
  32         void Apply(const Table::Ptr& table, const Value& row, AggregatorState **state) override;
  33         double GetResultAndFreeState(AggregatorState *state) const override;
  34
  35 private:
  36         String m_StdAttr;
  37
  38         static StdAggregatorState *EnsureState(AggregatorState **state);
  39 };
  40
  41 }
  42
  43 #endif /* STDAGGREGATOR_H */