System::ProcessTime Class Reference

Simple class to hold the time information of a process. More...

#include </builds/gaudi/Gaudi/GaudiKernel/include/GaudiKernel/Timing.h>

Public Types
typedef long long	TimeValueType

Public Member Functions
	ProcessTime ()
	Constructor.
	ProcessTime (TimeValueType k, TimeValueType u, TimeValueType e)
	Constructor.
template<TimeType T>
TimeValueType	kernelTime () const
	Retrieve the kernel time in the requested unit.
template<TimeType T>
TimeValueType	userTime () const
	Retrieve the user time in the requested unit.
template<TimeType T>
TimeValueType	elapsedTime () const
	Retrieve the elapsed time in the requested unit.
template<TimeType T>
TimeValueType	cpuTime () const
	Retrieve the CPU (user+kernel) time in the requested unit.
ProcessTime	operator- (const ProcessTime &rhs) const
	Return the delta between two ProcessTime objects.
ProcessTime &	operator+= (const ProcessTime &rhs)
	Add the timings to the current objects.

Private Attributes
TimeValueType	i_kernel
	Internal storage.
TimeValueType	i_user
TimeValueType	i_elapsed

Detailed Description

Simple class to hold the time information of a process.

Simplify the simultaneous handling of kernel, user and elapsed times of a process.

See also

{bug #87341}

Definition at line 134 of file Timing.h.

Member Typedef Documentation

TimeValueType

typedef long long System::ProcessTime::TimeValueType

Definition at line 136 of file Timing.h.

Constructor & Destructor Documentation

ProcessTime() [1/2]

System::ProcessTime::ProcessTime ( )

inline

Constructor.

Definition at line 139 of file Timing.h.

: i_kernel( 0 ), i_user( 0 ), i_elapsed( 0 ) {}

ProcessTime() [2/2]

System::ProcessTime::ProcessTime ( TimeValueType k, TimeValueType u, TimeValueType e )

inline

Constructor.

Definition at line 142 of file Timing.h.

: i_kernel( k ), i_user( u ), i_elapsed( e ) {}

Member Function Documentation

cpuTime()

template<TimeType T>

TimeValueType System::ProcessTime::cpuTime ( ) const

inline

Retrieve the CPU (user+kernel) time in the requested unit.

Definition at line 164 of file Timing.h.

                                         {
      return adjustTime<T>( i_user + i_kernel );
    }

elapsedTime()

template<TimeType T>

TimeValueType System::ProcessTime::elapsedTime ( ) const

inline

Retrieve the elapsed time in the requested unit.

Definition at line 158 of file Timing.h.

                                             {
      return adjustTime<T>( i_elapsed );
    }

kernelTime()

template<TimeType T>

TimeValueType System::ProcessTime::kernelTime ( ) const

inline

Retrieve the kernel time in the requested unit.

Definition at line 146 of file Timing.h.

                                            {
      return adjustTime<T>( i_kernel );
    }

operator+=()

ProcessTime & System::ProcessTime::operator+= ( const ProcessTime & rhs )

inline

Add the timings to the current objects.

Definition at line 173 of file Timing.h.

                                                             {
      i_kernel += rhs.i_kernel;
      i_user += rhs.i_user;
      i_elapsed += rhs.i_elapsed;
      return *this;
    }

operator-()

ProcessTime System::ProcessTime::operator- ( const ProcessTime & rhs ) const

inline

Return the delta between two ProcessTime objects.

Definition at line 169 of file Timing.h.

                                                                 {
      return ProcessTime( i_kernel - rhs.i_kernel, i_user - rhs.i_user, i_elapsed - rhs.i_elapsed );
    }

userTime()

template<TimeType T>

TimeValueType System::ProcessTime::userTime ( ) const

inline

Retrieve the user time in the requested unit.

Definition at line 152 of file Timing.h.

                                          {
      return adjustTime<T>( i_user );
    }

Member Data Documentation

i_elapsed

TimeValueType System::ProcessTime::i_elapsed

private

Definition at line 182 of file Timing.h.

i_kernel

TimeValueType System::ProcessTime::i_kernel

private

Internal storage.

Definition at line 182 of file Timing.h.

i_user

TimeValueType System::ProcessTime::i_user

private

Definition at line 182 of file Timing.h.

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

• GaudiKernel/include/GaudiKernel/Timing.h