Chrono Class Reference

A small utility class for chronometry of user codes. More...

#include <GaudiKernel/Chrono.h>

Collaboration diagram for Chrono:

Public Member Functions
	Chrono (IChronoSvc *svc=nullptr, const std::string &tag="CHRONO::UNNAMED")
	Constructor from Chrono Service and the tag. More...
	Chrono (Chrono &&rhs)
	Move Constructor. More...
	Chrono (const std::string &tag, IChronoSvc *svc)
	Constructor from Chrono Service and the tag. More...
	Chrono (ChronoEntity *c)
	Constructor from Chrono Object/Entity. More...
	Chrono (ChronoEntity &c)
	Constructor from Chrono Object/Entity. More...
	~Chrono ()
	Destructor , stop the chrono. More...

Private Member Functions
	Chrono (const Chrono &)=delete
	delete the copy constructor and assignment operators More...
Chrono &	operator= (const Chrono &)=delete

Private Attributes
ChronoEntity *	m_chrono = nullptr
	The actual chronometer. More...

Detailed Description

A small utility class for chronometry of user codes.

See also

ChronoEntity

IChronoSvc

Author

Vanya Belyaev

Date

Nov 26, 1999

Definition at line 25 of file Chrono.h.

Constructor & Destructor Documentation

Chrono::Chrono ( IChronoSvc *  svc = nullptr, const std::string &  tag = "CHRONO::UNNAMED"  )

inline

Constructor from Chrono Service and the tag.

IChronoSvc* svc = ... ;

{ // start the scope
  Chrono chrono ( svc , "some unique tag here" ) ;

  for ( long i = 0 ; i < 10000000 ; ++i )
   {
      .. put some CPU-intensive computations here
   }

} // end of the scope, destroy chrono

Parameters

svc	pointer to Chrono Service
tag	the unique tag

Definition at line 50 of file Chrono.h.

  {
    if ( svc ) {
      m_chrono = svc->chronoStart( tag );
    }
  }

Chrono::Chrono ( Chrono &&  rhs )

inline

Move Constructor.

Definition at line 62 of file Chrono.h.

  {
    m_chrono     = rhs.m_chrono;
    rhs.m_chrono = nullptr;
  }

Chrono::Chrono ( const std::string &  tag, IChronoSvc *  svc  )

inline

Constructor from Chrono Service and the tag.

IChronoSvc* svc = ... ;

{ // start the scope
  Chrono chrono ( "some unique tag here" , svc ) ;

  for ( long i = 0 ; i < 10000000 ; ++i )
   {
      .. put some CPU-intensive computations here
   }

} // end of the scope, destroy chrono

Parameters

tag	the unique tag
svc	pointer to Chrono Service

Definition at line 90 of file Chrono.h.

  {
    if ( svc ) {
      m_chrono = svc->chronoStart( tag );
    }
  }

Chrono::Chrono ( ChronoEntity *  c )

inline

Constructor from Chrono Object/Entity.

ChronoEntity* chronometer = ... ;

{ // start the scope
  Chrono chrono ( chronometer ) ;

  for ( long i = 0 ; i < 10000000 ; ++i )
   {
      .. put some CPU-intensive computations here
   }

} // end of the scope, destroy chrono

Parameters

c	the pointer to Chrono Object/Entity

Definition at line 118 of file Chrono.h.

                            : m_chrono( c )
  {
    if ( m_chrono ) {
      m_chrono->start();
    }
  }

Chrono::Chrono ( ChronoEntity &  c )

inline

Constructor from Chrono Object/Entity.

ChronoEntity m_chrono = ... ;

{ // start the scope
  Chrono chrono ( m_chrono ) ;

  for ( long i = 0 ; i < 10000000 ; ++i )
   {
      .. put some CPU-intensive computations here
   }

} // end of the scope, destroy chrono

Parameters

c	the reference to Chrono Object/Entity

Definition at line 145 of file Chrono.h.

: m_chrono( &c ) { m_chrono->start(); }

Chrono::~Chrono ( )

inline

Destructor , stop the chrono.

Definition at line 148 of file Chrono.h.

  {
    if ( m_chrono ) {
      m_chrono->stop();
    }
  }

Chrono::Chrono ( const Chrono &  )

privatedelete

delete the copy constructor and assignment operators

Member Function Documentation

Chrono& Chrono::operator= ( const Chrono &  )

privatedelete

Member Data Documentation

ChronoEntity* Chrono::m_chrono = nullptr

private

The actual chronometer.

Definition at line 164 of file Chrono.h.

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

• GaudiKernel/GaudiKernel/Chrono.h