ROOT::Experimental::THistBufferedFill< HIST, SIZE > Class Template Reference

template<class HIST, int SIZE = 1024>
class ROOT::Experimental::THistBufferedFill< HIST, SIZE >

Buffers calls to Fill().

Once the buffer is full, on destruction of when calling Flush(), it sends the buffers off as an ideally vectorizable FillN() operation. It also serves as a multi-threaded way of filling the same histogram, reducing the locking frequency.

The HIST template can be either a THist instance, a THistImpl instance, or a THistLockedFill instance.

Definition at line 78 of file THistBufferedFill.hxx.

Public Types
using	CoordArray_t = typename HIST::CoordArray_t
using	Hist_t = HIST
using	Weight_t = typename HIST::Weight_t
Public Types inherited from ROOT::Experimental::Internal::THistBufferedFillBase< THistBufferedFill< HIST, SIZE >, HIST, SIZE >
using	CoordArray_t = typename HIST::CoordArray_t
using	Weight_t = typename HIST::Weight_t

Public Member Functions
	THistBufferedFill (Hist_t &hist)
void	FillN (const std::span< CoordArray_t > xN, const std::span< Weight_t > weightN)
void	FillN (const std::span< CoordArray_t > xN)
void	Flush ()
HIST &	GetHist ()
	operator HIST & ()
Public Member Functions inherited from ROOT::Experimental::Internal::THistBufferedFillBase< THistBufferedFill< HIST, SIZE >, HIST, SIZE >
	THistBufferedFillBase ()
	~THistBufferedFillBase ()
void	Fill (const CoordArray_t &x, Weight_t weight=1.)
std::span< CoordArray_t >	GetCoords () const
std::span< Weight_t >	GetWeights () const
THistBufferedFill< HIST, SIZE > &	toDerived ()
const THistBufferedFill< HIST, SIZE > &	toDerived () const

Static Public Member Functions
static constexpr int	GetNDim ()

Private Attributes
size_t	fCursor = 0
HIST &	fHist
std::array< Weight_t, SIZE >	fWBuf
std::array< CoordArray_t, SIZE >	fXBuf

#include <ROOT/THistBufferedFill.hxx>

Inheritance diagram for ROOT::Experimental::THistBufferedFill< HIST, SIZE >:

Member Typedef Documentation

CoordArray_t

template<class HIST, int SIZE = 1024>

using ROOT::Experimental::THistBufferedFill< HIST, SIZE >::CoordArray_t = typename HIST::CoordArray_t

Definition at line 81 of file THistBufferedFill.hxx.

Hist_t

template<class HIST, int SIZE = 1024>

using ROOT::Experimental::THistBufferedFill< HIST, SIZE >::Hist_t = HIST

Definition at line 80 of file THistBufferedFill.hxx.

Weight_t

template<class HIST, int SIZE = 1024>

using ROOT::Experimental::THistBufferedFill< HIST, SIZE >::Weight_t = typename HIST::Weight_t

Definition at line 82 of file THistBufferedFill.hxx.

Constructor & Destructor Documentation

THistBufferedFill()

template<class HIST, int SIZE = 1024>

ROOT::Experimental::THistBufferedFill< HIST, SIZE >::THistBufferedFill ( Hist_t &  hist )

inline

Definition at line 91 of file THistBufferedFill.hxx.

Member Function Documentation

FillN() [1/2]

template<class HIST, int SIZE = 1024>

void ROOT::Experimental::THistBufferedFill< HIST, SIZE >::FillN ( const std::span< CoordArray_t >  xN, const std::span< Weight_t >  weightN  )

inline

Definition at line 93 of file THistBufferedFill.hxx.

FillN() [2/2]

template<class HIST, int SIZE = 1024>

void ROOT::Experimental::THistBufferedFill< HIST, SIZE >::FillN ( const std::span< CoordArray_t >  xN )

inline

Definition at line 98 of file THistBufferedFill.hxx.

Flush()

template<class HIST, int SIZE = 1024>

void ROOT::Experimental::THistBufferedFill< HIST, SIZE >::Flush ( )

inline

Definition at line 100 of file THistBufferedFill.hxx.

GetHist()

template<class HIST, int SIZE = 1024>

HIST& ROOT::Experimental::THistBufferedFill< HIST, SIZE >::GetHist ( )

inline

Definition at line 102 of file THistBufferedFill.hxx.

GetNDim()

template<class HIST, int SIZE = 1024>

static constexpr int ROOT::Experimental::THistBufferedFill< HIST, SIZE >::GetNDim ( )

inlinestatic

Definition at line 109 of file THistBufferedFill.hxx.

operator HIST &()

template<class HIST, int SIZE = 1024>

ROOT::Experimental::THistBufferedFill< HIST, SIZE >::operator HIST & ( )

inline

Definition at line 107 of file THistBufferedFill.hxx.

Member Data Documentation

fCursor

template<class HIST, int SIZE = 1024>

size_t ROOT::Experimental::THistBufferedFill< HIST, SIZE >::fCursor = 0

private

Definition at line 86 of file THistBufferedFill.hxx.

fHist

template<class HIST, int SIZE = 1024>

HIST& ROOT::Experimental::THistBufferedFill< HIST, SIZE >::fHist

private

Definition at line 85 of file THistBufferedFill.hxx.

fWBuf

template<class HIST, int SIZE = 1024>

std::array<Weight_t, SIZE> ROOT::Experimental::THistBufferedFill< HIST, SIZE >::fWBuf

private

Definition at line 88 of file THistBufferedFill.hxx.

fXBuf

template<class HIST, int SIZE = 1024>

std::array<CoordArray_t, SIZE> ROOT::Experimental::THistBufferedFill< HIST, SIZE >::fXBuf

private

Definition at line 87 of file THistBufferedFill.hxx.

Libraries for ROOT::Experimental::THistBufferedFill< HIST, SIZE >:

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