TimeIntervalStats.hpp

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#ifndef _uhal_TimeIntervalStats_hpp_
#define _uhal_TimeIntervalStats_hpp_
 
 
#include <iosfwd>                          // for ostream
#include <queue>
#include <stddef.h>                        // for size_t
 
#include <boost/chrono/system_clocks.hpp>  // for steady_clock
 
 
namespace uhal {
 
class TimeIntervalStats {
public:
  typedef boost::chrono::steady_clock Clock_t;
 
  TimeIntervalStats();
  ~TimeIntervalStats();
 
  size_t size() const;
 
  const Clock_t::duration& min() const;
 
  const Clock_t::duration& max() const;
 
  Clock_t::duration mean() const;
 
  const std::queue<Clock_t::duration>& getLatestMeasurements() const;
 
  void add(const Clock_t::time_point& aT1, const Clock_t::time_point& aT2);
 
  void clear();
 
private:
  std::queue<Clock_t::duration> mLatestMeasurements;
 
  Clock_t::duration mMin;
  Clock_t::duration mMax;
  Clock_t::duration mSum;
 
  size_t nMeasurements;
};
 
std::ostream& operator<<(std::ostream&, const TimeIntervalStats&);
 
} // end ns uhal
 
 
#endif