mitk::LinuxRealTimeClock Class Reference

RealTimeClock for linux-systems. More...

#include <mitkLinuxRealTimeClock.h>

Inheritance diagram for mitk::LinuxRealTimeClock:

Collaboration diagram for mitk::LinuxRealTimeClock:

List of all members.

Public Types
typedef mitk::LinuxRealTimeClock	Self
typedef mitk::RealTimeClock	Superclass
typedef itk::SmartPointer< Self >	Pointer
typedef itk::SmartPointer < const Self >	ConstPointer
Public Member Functions
virtual const char *	GetClassName () const
	LinuxRealTimeClock ()
	basic contructor
virtual	~LinuxRealTimeClock ()
	basic contructor
virtual double	GetCurrentStamp ()
	returns the current time in milliseconds as a double
Static Public Member Functions
static Pointer	New ()
	instanciates a new, operating-system dependant, instance of mitk::RealTimeClock.

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Detailed Description

RealTimeClock for linux-systems.

This class provides realtimeclock for linux-systems. It uses gettimeofday to acquire a current time-value as accurately as possible.

Returns:

Returns the current time since the Epoch (01.01.1970) in milliseconds as a double

Definition at line 37 of file mitkLinuxRealTimeClock.h.

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Member Typedef Documentation

typedef itk::SmartPointer<const Self> mitk::LinuxRealTimeClock::ConstPointer

Reimplemented from mitk::RealTimeClock.

Definition at line 40 of file mitkLinuxRealTimeClock.h.

typedef itk::SmartPointer<Self> mitk::LinuxRealTimeClock::Pointer

Reimplemented from mitk::RealTimeClock.

Definition at line 40 of file mitkLinuxRealTimeClock.h.

typedef mitk::LinuxRealTimeClock mitk::LinuxRealTimeClock::Self

Reimplemented from mitk::RealTimeClock.

Definition at line 40 of file mitkLinuxRealTimeClock.h.

typedef mitk::RealTimeClock mitk::LinuxRealTimeClock::Superclass

Reimplemented from mitk::RealTimeClock.

Definition at line 40 of file mitkLinuxRealTimeClock.h.

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Constructor & Destructor Documentation

mitk::LinuxRealTimeClock::LinuxRealTimeClock

(

)

basic contructor

basic constructor

Definition at line 26 of file mitkLinuxRealTimeClock.cpp.

{
}

mitk::LinuxRealTimeClock::~LinuxRealTimeClock

(

)

[virtual]

basic contructor

basic destructor

Definition at line 33 of file mitkLinuxRealTimeClock.cpp.

{
}

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Member Function Documentation

virtual const char* mitk::LinuxRealTimeClock::GetClassName

(

)

const [virtual]

Reimplemented from mitk::RealTimeClock.

double mitk::LinuxRealTimeClock::GetCurrentStamp

(

)

[virtual]

returns the current time in milliseconds as a double

returns the current time in milliseconds

Gets the current time since the Epoch (01.01.1970). gettimeofday returns the elapsed time in microseconds.This value is calculated to milliseconds and returned as a double.

Returns:

Returns the elapsed time in milliseconds

Implements mitk::RealTimeClock.

Definition at line 45 of file mitkLinuxRealTimeClock.cpp.

{
  struct timeval tval;

  if ( ::gettimeofday( &tval, 0 )!= 0 )
  {
    itkGenericOutputMacro("gettimeofday-method could not successfully acquire the current time");
    return -1;
  }
  double milliseconds;

  milliseconds = static_cast< double >( tval.tv_sec ) +
    static_cast< double >( tval.tv_usec ) / 1e6;

  return milliseconds*1000; // in milliseconds
}

static Pointer mitk::LinuxRealTimeClock::New

(

void

)

[static]

instanciates a new, operating-system dependant, instance of mitk::RealTimeClock.

Reimplemented from mitk::RealTimeClock.

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

• mitkLinuxRealTimeClock.h
• mitkLinuxRealTimeClock.cpp