| # Gaudi Framework, version v25r0 |

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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]

## 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..nosp@m.Bely.nosp@m.aev@n.nosp@m.ikhe.nosp@m.f.nl

Date
  2009-08-10

Definition at line 54 of file LockedChrono.h.

## 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

bool Gaudi::Utils::LockedChrono::m_locked
| private

locked ?

Definition at line 93 of file LockedChrono.h.

bool& Gaudi::Utils::LockedChrono::m_locker
| private

the actual locker

Definition at line 91 of file LockedChrono.h.

ChronoEntity& Gaudi::Utils::LockedChrono::m_timer
| private

the actual timer

Definition at line 89 of file LockedChrono.h.

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

- /afs/cern.ch/sw/Gaudi/releases/GAUDI/GAUDI_v25r0/GaudiKernel/GaudiKernel/LockedChrono.h