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ROOT::Experimental::Internal::ROnDiskPage Class Reference

A page as being stored on disk, that is packed and compressed.

Used by the cluster pool to cache pages from the physical storage. Such pages generally need to be uncompressed and unpacked before they can be used by RNTuple upper layers.

Definition at line 42 of file RCluster.hxx.


struct  Key
 On-disk pages within a page source are identified by the column and page number. More...

Public Member Functions

 ROnDiskPage ()=default
 ROnDiskPage (void *address, std::uint32_t size)
const void * GetAddress () const
std::uint32_t GetSize () const
bool IsNull () const

Private Attributes

const void * fAddress = nullptr
 The memory location of the bytes.
std::uint32_t fSize = 0
 The compressed and packed size of the page.

#include <ROOT/RCluster.hxx>

Constructor & Destructor Documentation

◆ ROnDiskPage() [1/2]

ROOT::Experimental::Internal::ROnDiskPage::ROnDiskPage ( )

◆ ROnDiskPage() [2/2]

ROOT::Experimental::Internal::ROnDiskPage::ROnDiskPage ( void *  address,
std::uint32_t  size 

Definition at line 62 of file RCluster.hxx.

Member Function Documentation

◆ GetAddress()

const void * ROOT::Experimental::Internal::ROnDiskPage::GetAddress ( ) const

Definition at line 64 of file RCluster.hxx.

◆ GetSize()

std::uint32_t ROOT::Experimental::Internal::ROnDiskPage::GetSize ( ) const

Definition at line 65 of file RCluster.hxx.

◆ IsNull()

bool ROOT::Experimental::Internal::ROnDiskPage::IsNull ( ) const

Definition at line 67 of file RCluster.hxx.

Member Data Documentation

◆ fAddress

const void* ROOT::Experimental::Internal::ROnDiskPage::fAddress = nullptr

The memory location of the bytes.

Definition at line 45 of file RCluster.hxx.

◆ fSize

std::uint32_t ROOT::Experimental::Internal::ROnDiskPage::fSize = 0

The compressed and packed size of the page.

Definition at line 47 of file RCluster.hxx.

Libraries for ROOT::Experimental::Internal::ROnDiskPage:

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