icinga2/lib/livestatus/minaggregator.hpp

43 lines
769 B
C++

/* Icinga 2 | (c) 2012 Icinga GmbH | GPLv2+ */
#ifndef MINAGGREGATOR_H
#define MINAGGREGATOR_H
#include "livestatus/table.hpp"
#include "livestatus/aggregator.hpp"
#include <cfloat>
namespace icinga
{
/**
* @ingroup livestatus
*/
struct MinAggregatorState final : public AggregatorState
{
double Min{DBL_MAX};
};
/**
* @ingroup livestatus
*/
class MinAggregator final : public Aggregator
{
public:
DECLARE_PTR_TYPEDEFS(MinAggregator);
MinAggregator(String attr);
void Apply(const Table::Ptr& table, const Value& row, AggregatorState **state) override;
double GetResultAndFreeState(AggregatorState *state) const override;
private:
String m_MinAttr;
static MinAggregatorState *EnsureState(AggregatorState **state);
};
}
#endif /* MINAGGREGATOR_H */