// -*- mode: c++ -*-
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#include "jsk_topic_tools/time_accumulator.h"

namespace jsk_topic_tools
{
  TimeAccumulator::TimeAccumulator()
  {

  }

  TimeAccumulator::~TimeAccumulator()
  {

  }
  
  ScopedTimer TimeAccumulator::scopedTimer()
  {
    return ScopedTimer(this);
  }

  void TimeAccumulator::registerTime(double time)
  {
    acc_(time);
  }

  double TimeAccumulator::mean()
  {
    return boost::accumulators::mean(acc_);
  }

  double TimeAccumulator::min()
  {
    return boost::accumulators::min(acc_);
  }

  double TimeAccumulator::max()
  {
    return boost::accumulators::max(acc_);
  }

  int TimeAccumulator::count()
  {
    return boost::accumulators::count(acc_);
  }
  
  double TimeAccumulator::variance()
  {
    return boost::accumulators::variance(acc_);
  }
  
  ScopedTimer::ScopedTimer(TimeAccumulator* parent):
    parent_(parent), start_time_(ros::WallTime::now())
  {
  }

  ScopedTimer::~ScopedTimer()
  {
    parent_->registerTime((ros::WallTime::now() - start_time_).toSec());
  }
}

