Timer< TimeT > Class Template Reference

#include <measure.h>

Public Member Functions
	Timer ()
void	start ()
void	stop ()
TimeT::rep	elapsed ()

Private Attributes
std::chrono::steady_clock::time_point	start_time_
TimeT::rep	duration
bool	timer_started_

Detailed Description

template<typename TimeT = std::chrono::milliseconds>
class Timer< TimeT >

Definition at line 55 of file measure.h.

Constructor & Destructor Documentation

template<typename TimeT = std::chrono::milliseconds>

Timer< TimeT >::Timer ( )

inline

Definition at line 57 of file measure.h.

: duration{0}, timer_started_(false) {}

Member Function Documentation

template<typename TimeT = std::chrono::milliseconds>

TimeT::rep Timer< TimeT >::elapsed ( )

inline

Definition at line 72 of file measure.h.

References Timer< TimeT >::duration.

Referenced by foreign_storage::LazyParquetChunkLoader::appendRowGroups(), and foreign_storage::LazyParquetChunkLoader::metadataScan().

{ return duration; }

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template<typename TimeT = std::chrono::milliseconds>

void Timer< TimeT >::start ( )

inline

Definition at line 59 of file measure.h.

References Timer< TimeT >::start_time_, timer_start(), and Timer< TimeT >::timer_started_.

Referenced by foreign_storage::LazyParquetChunkLoader::appendRowGroups(), and foreign_storage::LazyParquetChunkLoader::metadataScan().

               {
    start_time_ = timer_start();
    timer_started_ = true;
  }

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template<typename TimeT = std::chrono::milliseconds>

void Timer< TimeT >::stop ( )

inline

Definition at line 64 of file measure.h.

References Timer< TimeT >::duration, LOG, Timer< TimeT >::start_time_, Timer< TimeT >::timer_started_, timer_stop(), and logger::WARNING.

Referenced by foreign_storage::LazyParquetChunkLoader::appendRowGroups(), and foreign_storage::LazyParquetChunkLoader::metadataScan().

              {
    if (!timer_started_) {
      LOG(WARNING) << " unexpected call to stop on a timer that has not started";
    }
    duration += timer_stop(start_time_);
    timer_started_ = false;
  }

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Member Data Documentation

template<typename TimeT = std::chrono::milliseconds>

TimeT::rep Timer< TimeT >::duration

private

Definition at line 76 of file measure.h.

Referenced by Timer< TimeT >::elapsed(), and Timer< TimeT >::stop().

template<typename TimeT = std::chrono::milliseconds>

std::chrono::steady_clock::time_point Timer< TimeT >::start_time_

private

Definition at line 75 of file measure.h.

Referenced by Timer< TimeT >::start(), and Timer< TimeT >::stop().

template<typename TimeT = std::chrono::milliseconds>

bool Timer< TimeT >::timer_started_

private

Definition at line 77 of file measure.h.

Referenced by Timer< TimeT >::start(), and Timer< TimeT >::stop().

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The documentation for this class was generated from the following file:

• /home/jenkins-slave/workspace/core-os-doxygen/Shared/measure.h