Gaudi::Utils::LockedChrono Class Reference

Helper object, useful for measurement of CPU-performance of highly-recursive structures, e.g. More...

#include <LockedChrono.h>

Collaboration diagram for Gaudi::Utils::LockedChrono:

[legend]

List of all members.

Public Member Functions
	LockedChrono (ChronoEntity &c, bool &lock)
	constructor from the actual timer: start the timer
	~LockedChrono ()
	destructor:
Private Member Functions
	LockedChrono ()
	no default constructor
Private Attributes
ChronoEntity &	m_timer
	the actual timer
bool &	m_locker
	the actual locker
bool	m_locked
	locked ?

---

Detailed Description

Helper object, useful for measurement of CPU-performance of highly-recursive structures, e.g.

Data-On-Demand service, complex algorithms, etc...

  class MyClass ...
  { 

  public:
 
  void doSomethingRecursive() const 
    {
      ...
      LockedChrono timer ( m_chrono , m_lock ) ;
      ...
      // some direct or indirect recursive call:
      if ( ... ) { doSomethingRecursive () ; } 
      ...
    }
 
  private:

     mutable bool         m_lock   ;    // lock  
     mutable ChronoEntity m_chrono ;    // actual timer 

  };

Author:

Vanya BELYAEV Ivan.Belyaev@nikhef.nl

Date:

2009-08-10

Definition at line 54 of file LockedChrono.h.

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Constructor & Destructor Documentation

Gaudi::Utils::LockedChrono::LockedChrono	(	ChronoEntity &	c,
		bool &	lock
	)			[inline]

constructor from the actual timer: start the timer

Definition at line 59 of file LockedChrono.h.

        : m_timer  ( c     ) 
        , m_locker ( lock  )
        , m_locked ( false )
      {
        if  ( !lock ) 
        {
          m_timer.start() ;
          m_locker = true ;
          m_locked = true ;
        }  
      }

Gaudi::Utils::LockedChrono::~LockedChrono

(

)

[inline]

destructor:

Definition at line 72 of file LockedChrono.h.

      { 
        if  ( m_locked ) 
        { 
          m_timer.stop  () ;
          m_locker = false ;
        }  
      }

Gaudi::Utils::LockedChrono::LockedChrono

(

)

[private]

no default constructor

---

Member Data Documentation

ChronoEntity& Gaudi::Utils::LockedChrono::m_timer [private]

the actual timer

Definition at line 89 of file LockedChrono.h.

bool& Gaudi::Utils::LockedChrono::m_locker [private]

the actual locker

Definition at line 91 of file LockedChrono.h.

bool Gaudi::Utils::LockedChrono::m_locked [private]

locked ?

Definition at line 93 of file LockedChrono.h.

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

• /afs/cern.ch/sw/Gaudi/releases/GAUDI/GAUDI_v21r9/GaudiKernel/GaudiKernel/LockedChrono.h