Checksum Class Reference

Class that encapsulates two CRC32 checksums, one for the Grid, Tree and Root node meta data and one for the remaining grid nodes. More...

#include <nanovdb/NanoVDB.h>

Public Member Functions
__hostdev__	Checksum ()
	default constructor initiates checksum to EMPTY More...
__hostdev__	Checksum (uint32_t head, uint32_t tail)
	Constructor that allows the two 32bit checksums to be initiated explicitly. More...
__hostdev__	Checksum (uint64_t checksum, CheckMode mode=CheckMode::Full)
__hostdev__ uint64_t	checksum () const
	return the 64 bit checksum of this instance More...
__hostdev__ uint32_t &	checksum (int i)
__hostdev__ uint32_t	checksum (int i) const
__hostdev__ uint64_t	full () const
__hostdev__ uint64_t &	full ()
__hostdev__ uint32_t	head () const
__hostdev__ uint32_t &	head ()
__hostdev__ uint32_t	tail () const
__hostdev__ uint32_t &	tail ()
__hostdev__ bool	isPartial () const
	return true if the 64 bit checksum is partial, i.e. of head only More...
__hostdev__ bool	isHalf () const
__hostdev__ bool	isFull () const
	return true if the 64 bit checksum is fill, i.e. of both had and nodes More...
__hostdev__ bool	isEmpty () const
	return true if the 64 bit checksum is disables (unset) More...
__hostdev__ void	disable ()
__hostdev__ CheckMode	mode () const
	return the mode of the 64 bit checksum More...
__hostdev__ bool	operator== (const Checksum &rhs) const
	return true if the checksums are identical More...
__hostdev__ bool	operator!= (const Checksum &rhs) const
	return true if the checksums are not identical More...

Static Public Attributes
static constexpr uint32_t	EMPTY32 = ~uint32_t{0}
static constexpr uint64_t	EMPTY64 = ~uint64_t(0)

Detailed Description

Class that encapsulates two CRC32 checksums, one for the Grid, Tree and Root node meta data and one for the remaining grid nodes.

Constructor & Destructor Documentation

__hostdev__ Checksum ( )

inline

default constructor initiates checksum to EMPTY

__hostdev__ Checksum ( uint32_t  head, uint32_t  tail  )

inline

Constructor that allows the two 32bit checksums to be initiated explicitly.

Parameters

head	Initial 32bit CRC checksum of grid, tree and root data
tail	Initial 32bit CRC checksum of all the nodes and blind data

__hostdev__ Checksum ( uint64_t  checksum, CheckMode  mode = CheckMode::Full  )

inline

Parameters

checksum
mode

Member Function Documentation

__hostdev__ uint64_t checksum ( ) const

inline

return the 64 bit checksum of this instance

__hostdev__ uint32_t& checksum ( int  i )

inline

__hostdev__ uint32_t checksum ( int  i ) const

inline

__hostdev__ void disable ( )

inline

__hostdev__ uint64_t full ( ) const

inline

__hostdev__ uint64_t& full ( )

inline

__hostdev__ uint32_t head ( ) const

inline

__hostdev__ uint32_t& head ( )

inline

__hostdev__ bool isEmpty ( ) const

inline

return true if the 64 bit checksum is disables (unset)

__hostdev__ bool isFull ( ) const

inline

return true if the 64 bit checksum is fill, i.e. of both had and nodes

__hostdev__ bool isHalf ( ) const

inline

__hostdev__ bool isPartial ( ) const

inline

return true if the 64 bit checksum is partial, i.e. of head only

__hostdev__ CheckMode mode ( ) const

inline

return the mode of the 64 bit checksum

__hostdev__ bool operator!= ( const Checksum &  rhs ) const

inline

return true if the checksums are not identical

Parameters

rhs	other Checksum

__hostdev__ bool operator== ( const Checksum &  rhs ) const

inline

return true if the checksums are identical

Parameters

rhs	other Checksum

__hostdev__ uint32_t tail ( ) const

inline

__hostdev__ uint32_t& tail ( )

inline

Member Data Documentation

constexpr uint32_t EMPTY32 = ~uint32_t{0}

static

constexpr uint64_t EMPTY64 = ~uint64_t(0)

static

uint32_t mCRC32[2]

uint64_t mCRC64