ROOT::Experimental::Internal::RNTupleDecompressor Class Reference

Helper class to uncompress data blocks in the ROOT compression frame format.

Definition at line 176 of file RNTupleZip.hxx.

Public Member Functions
	RNTupleDecompressor ()
	RNTupleDecompressor (const RNTupleDecompressor &other)=delete
	RNTupleDecompressor (RNTupleDecompressor &&other)=default
RNTupleDecompressor &	operator= (const RNTupleDecompressor &other)=delete
RNTupleDecompressor &	operator= (RNTupleDecompressor &&other)=default
void	Unzip (const void *from, size_t nbytes, size_t dataLen, void *to)
	The nbytes parameter provides the size ls of the from buffer.
void	Unzip (void *fromto, size_t nbytes, size_t dataLen)
	In-place decompression via unzip buffer.

Private Types
using	Buffer_t = std::array< unsigned char, kMAXZIPBUF >

Private Attributes
std::unique_ptr< Buffer_t >	fUnzipBuffer

#include <ROOT/RNTupleZip.hxx>

Member Typedef Documentation

Buffer_t

using ROOT::Experimental::Internal::RNTupleDecompressor::Buffer_t = std::array<unsigned char, kMAXZIPBUF>

private

Definition at line 178 of file RNTupleZip.hxx.

Constructor & Destructor Documentation

RNTupleDecompressor() [1/3]

ROOT::Experimental::Internal::RNTupleDecompressor::RNTupleDecompressor ( )

inline

Definition at line 182 of file RNTupleZip.hxx.

RNTupleDecompressor() [2/3]

ROOT::Experimental::Internal::RNTupleDecompressor::RNTupleDecompressor ( const RNTupleDecompressor &  other )

delete

RNTupleDecompressor() [3/3]

ROOT::Experimental::Internal::RNTupleDecompressor::RNTupleDecompressor ( RNTupleDecompressor &&  other )

default

Member Function Documentation

operator=() [1/2]

RNTupleDecompressor & ROOT::Experimental::Internal::RNTupleDecompressor::operator= ( const RNTupleDecompressor &  other )

delete

operator=() [2/2]

RNTupleDecompressor & ROOT::Experimental::Internal::RNTupleDecompressor::operator= ( RNTupleDecompressor &&  other )

default

Unzip() [1/2]

void ROOT::Experimental::Internal::RNTupleDecompressor::Unzip ( const void *  from, size_t  nbytes, size_t  dataLen, void *  to  )

inline

The nbytes parameter provides the size ls of the from buffer.

The dataLen gives the size of the uncompressed data. The block is uncompressed iff nbytes == dataLen.

Definition at line 192 of file RNTupleZip.hxx.

Unzip() [2/2]

void ROOT::Experimental::Internal::RNTupleDecompressor::Unzip ( void *  fromto, size_t  nbytes, size_t  dataLen  )

inline

In-place decompression via unzip buffer.

Definition at line 226 of file RNTupleZip.hxx.

Member Data Documentation

fUnzipBuffer

std::unique_ptr<Buffer_t> ROOT::Experimental::Internal::RNTupleDecompressor::fUnzipBuffer

private

Definition at line 179 of file RNTupleZip.hxx.

Libraries for ROOT::Experimental::Internal::RNTupleDecompressor:

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

• tree/ntuple/v7/inc/ROOT/RNTupleZip.hxx