ROOT::Experimental::Internal::RPageSinkBuf::RColumnBuf Class Reference

A buffered column.

The column is not responsible for RPage memory management (i.e. ReservePage), which is handled by the enclosing RPageSinkBuf.

Definition at line 45 of file RPageSinkBuf.hxx.

Classes
struct	RPageZipItem

Public Member Functions
	RColumnBuf ()=default
	RColumnBuf (const RColumnBuf &)=delete
	RColumnBuf (RColumnBuf &&)=default
	~RColumnBuf ()
RPageZipItem &	BufferPage (RPageStorage::ColumnHandle_t columnHandle)
	Returns a reference to the newly buffered page.
void	DropBufferedPages ()
const RPageStorage::ColumnHandle_t &	GetHandle () const
const RPageStorage::SealedPageSequence_t &	GetSealedPages () const
bool	HasSealedPagesOnly () const
bool	IsEmpty () const
RColumnBuf &	operator= (const RColumnBuf &)=delete
RColumnBuf &	operator= (RColumnBuf &&)=default
RSealedPage &	RegisterSealedPage ()

Private Attributes
std::deque< RPageZipItem >	fBufferedPages
	Using a deque guarantees that element iterators are never invalidated by appends to the end of the iterator by BufferPage.
RPageStorage::ColumnHandle_t	fCol
RPageStorage::SealedPageSequence_t	fSealedPages
	Pages that have been already sealed by a concurrent task.

Constructor & Destructor Documentation

RColumnBuf() [1/3]

ROOT::Experimental::Internal::RPageSinkBuf::RColumnBuf::RColumnBuf ( )

default

RColumnBuf() [2/3]

ROOT::Experimental::Internal::RPageSinkBuf::RColumnBuf::RColumnBuf ( const RColumnBuf &  )

delete

RColumnBuf() [3/3]

ROOT::Experimental::Internal::RPageSinkBuf::RColumnBuf::RColumnBuf ( RColumnBuf &&  )

default

~RColumnBuf()

ROOT::Experimental::Internal::RPageSinkBuf::RColumnBuf::~RColumnBuf ( )

inline

Definition at line 60 of file RPageSinkBuf.hxx.

Member Function Documentation

BufferPage()

RPageZipItem & ROOT::Experimental::Internal::RPageSinkBuf::RColumnBuf::BufferPage ( RPageStorage::ColumnHandle_t  columnHandle )

inline

Returns a reference to the newly buffered page.

The reference remains valid until DropBufferedPages().

Definition at line 64 of file RPageSinkBuf.hxx.

DropBufferedPages()

void ROOT::Experimental::Internal::RPageSinkBuf::RColumnBuf::DropBufferedPages

(

)

Definition at line 26 of file RPageSinkBuf.cxx.

GetHandle()

const RPageStorage::ColumnHandle_t & ROOT::Experimental::Internal::RPageSinkBuf::RColumnBuf::GetHandle ( ) const

inline

Definition at line 73 of file RPageSinkBuf.hxx.

GetSealedPages()

const RPageStorage::SealedPageSequence_t & ROOT::Experimental::Internal::RPageSinkBuf::RColumnBuf::GetSealedPages ( ) const

inline

Definition at line 76 of file RPageSinkBuf.hxx.

HasSealedPagesOnly()

bool ROOT::Experimental::Internal::RPageSinkBuf::RColumnBuf::HasSealedPagesOnly ( ) const

inline

Definition at line 75 of file RPageSinkBuf.hxx.

IsEmpty()

bool ROOT::Experimental::Internal::RPageSinkBuf::RColumnBuf::IsEmpty ( ) const

inline

Definition at line 74 of file RPageSinkBuf.hxx.

operator=() [1/2]

RColumnBuf & ROOT::Experimental::Internal::RPageSinkBuf::RColumnBuf::operator= ( const RColumnBuf &  )

delete

operator=() [2/2]

RColumnBuf & ROOT::Experimental::Internal::RPageSinkBuf::RColumnBuf::operator= ( RColumnBuf &&  )

default

RegisterSealedPage()

RSealedPage & ROOT::Experimental::Internal::RPageSinkBuf::RColumnBuf::RegisterSealedPage ( )

inline

Definition at line 82 of file RPageSinkBuf.hxx.

Member Data Documentation

fBufferedPages

std::deque<RPageZipItem> ROOT::Experimental::Internal::RPageSinkBuf::RColumnBuf::fBufferedPages

private

Using a deque guarantees that element iterators are never invalidated by appends to the end of the iterator by BufferPage.

Definition at line 91 of file RPageSinkBuf.hxx.

fCol

RPageStorage::ColumnHandle_t ROOT::Experimental::Internal::RPageSinkBuf::RColumnBuf::fCol

private

Definition at line 88 of file RPageSinkBuf.hxx.

fSealedPages

RPageStorage::SealedPageSequence_t ROOT::Experimental::Internal::RPageSinkBuf::RColumnBuf::fSealedPages

private

Pages that have been already sealed by a concurrent task.

A vector commit can be issued if all buffered pages have been sealed. Note that each RSealedPage refers to the same buffer as fBufferedPages[i].fBuf for some value of i, and thus owned by RPageZipItem

Definition at line 96 of file RPageSinkBuf.hxx.

Libraries for ROOT::Experimental::Internal::RPageSinkBuf::RColumnBuf:

---

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

• tree/ntuple/v7/inc/ROOT/RPageSinkBuf.hxx
• tree/ntuple/v7/src/RPageSinkBuf.cxx