XrdCksCalccrc32 Class Reference

#include <XrdCksCalccrc32.hh>

Inheritance diagram for XrdCksCalccrc32:

Collaboration diagram for XrdCksCalccrc32:

Public Member Functions
char *	Final ()
void	Init ()
XrdCksCalc *	New ()
void	Update (const char *Buff, int BLen)
const char *	Type (int &csSz)
	XrdCksCalccrc32 ()
virtual	~XrdCksCalccrc32 ()
Public Member Functions inherited from XrdCksCalc
virtual char *	Calc (const char *Buff, int BLen)
virtual char *	Current ()
virtual void	Recycle ()
	Recycle the checksum object as it is no longer needed. A default is given.
	XrdCksCalc ()
	Constructor.
virtual	~XrdCksCalc ()
	Destructor.

Private Attributes
unsigned int	C32Result
unsigned int	TheResult
long long	TotLen

Static Private Attributes
static const unsigned int	CRC32_XINIT = 0
static const unsigned int	CRC32_XOROT = 0xffffffff
static unsigned int	crctable [256]

Constructor & Destructor Documentation

XrdCksCalccrc32()

XrdCksCalccrc32::XrdCksCalccrc32 ( )

inline

References Init().

Referenced by New().

~XrdCksCalccrc32()

virtual XrdCksCalccrc32::~XrdCksCalccrc32 ( )

inlinevirtual

Member Function Documentation

Final()

char * XrdCksCalccrc32::Final ( )

inlinevirtual

Get the actual checksum in binary format.

Returns

the checksum value in binary format. The pointer to the value becomes invalid once the associated object is deleted.

Implements XrdCksCalc.

References C32Result, CRC32_XOROT, TheResult, TotLen, and Update().

Init()

void XrdCksCalccrc32::Init ( )

inlinevirtual

Initializes data structures (must be called by constructor). This is always called to reuse the object for a new checksum.

Implements XrdCksCalc.

References C32Result, CRC32_XINIT, and TotLen.

Referenced by XrdCksCalccrc32().

New()

XrdCksCalc * XrdCksCalccrc32::New ( )

inlinevirtual

Get a new instance of the underlying checksum calculation object.

Returns

the checksum calculation object.

Implements XrdCksCalc.

References XrdCksCalccrc32().

Type()

const char * XrdCksCalccrc32::Type ( int &  csSize )

inlinevirtual

Get the checksum object algorithm name and the number bytes (i.e. size) required for the checksum value.

Parameters

csSize

-> Parameter to hold the size of the checksum value.

Returns

the checksum algorithm's name. The name persists event after the checksum object is deleted.

Implements XrdCksCalc.

References TheResult.

Update()

void XrdCksCalccrc32::Update ( const char *  Buff, int  BLen  )

virtual

Compute a running checksum. This method may be called repeatedly for data segments; with Final() returning the full checksum.

Parameters

Buff	-> Data to be checksummed.
BLen	-> Length of the data in Buff.

Implements XrdCksCalc.

Referenced by Final().

Member Data Documentation

C32Result

unsigned int XrdCksCalccrc32::C32Result

private

Referenced by Final(), and Init().

CRC32_XINIT

const unsigned int XrdCksCalccrc32::CRC32_XINIT = 0

staticprivate

Referenced by Init().

CRC32_XOROT

const unsigned int XrdCksCalccrc32::CRC32_XOROT = 0xffffffff

staticprivate

Referenced by Final().

crctable

unsigned int XrdCksCalccrc32::crctable[256]

staticprivate

TheResult

unsigned int XrdCksCalccrc32::TheResult

private

Referenced by Final(), and Type().

TotLen

long long XrdCksCalccrc32::TotLen

private

Referenced by Final(), and Init().

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

• XrdCksCalccrc32.hh