larcv::Watch Class Reference

a very simple stopwatch class for simple time measurement More...

#include <Watch.h>

Public Member Functions
	Watch ()
	~Watch ()
void	Start ()
	Start stop watch. More...
double	WallTime ()
	Report wall-clock time [s] since Start() call. More...
double	CPUTime ()
	Report cpu-clock time [s] since Start() call. More...

Private Attributes
double	_cpu_time_start
double	_wall_time_start

Detailed Description

a very simple stopwatch class for simple time measurement

Definition at line 27 of file Watch.h.

Constructor & Destructor Documentation

larcv::Watch::Watch ( )

inline

Definition at line 29 of file Watch.h.

{}

larcv::Watch::~Watch ( )

inline

Definition at line 30 of file Watch.h.

{}

Member Function Documentation

double larcv::Watch::CPUTime ( )

inline

Report cpu-clock time [s] since Start() call.

Definition at line 51 of file Watch.h.

References _cpu_time_start.

                     {
      // Get cpu time
      double now = (double)(clock());
      // Return diff
      return (now - _cpu_time_start)/CLOCKS_PER_SEC;
    }

void larcv::Watch::Start ( )

inline

Start stop watch.

Definition at line 33 of file Watch.h.

References _cpu_time_start, and _wall_time_start.

Referenced by larlite::LArImageClusterBase::analyze(), larcv::ImageClusterManager::Process(), and larcv::ImageClusterBase::Process().

                 {
      // Get current wall time
      struct timeval current_time;
      gettimeofday(&current_time,NULL);
      _wall_time_start = (double)current_time.tv_sec + (double)current_time.tv_usec * 1.e-6;
      // Get current cpu time
      _cpu_time_start = (double)(clock());
    }

double larcv::Watch::WallTime ( )

inline

Report wall-clock time [s] since Start() call.

Definition at line 42 of file Watch.h.

References _wall_time_start.

Referenced by larlite::LArImageClusterBase::analyze(), larcv::ImageClusterManager::Process(), and larcv::ImageClusterBase::Process().

                      {
      // Get current wall time
      struct timeval current_time;
      gettimeofday(&current_time,NULL);
      double now = (double)current_time.tv_sec + (double)current_time.tv_usec * 1.e-6;
      // Return diff
      return (now - _wall_time_start);
    }

Member Data Documentation

double larcv::Watch::_cpu_time_start

private

Definition at line 58 of file Watch.h.

Referenced by CPUTime(), and Start().

double larcv::Watch::_wall_time_start

private

Definition at line 59 of file Watch.h.

Referenced by Start(), and WallTime().

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

• Watch.h