ROOT::RNTupleReader::RActiveEntriesControlBlock Struct Reference

Shared data structure between the reader and all the issued active entry tokens.

Definition at line 71 of file RNTupleReader.hxx.

Public Member Functions
	RActiveEntriesControlBlock (Internal::RPageSource *pageSource)

Public Attributes
std::unordered_map< ROOT::DescriptorId_t, std::uint64_t >	fActiveClusters
	Reference counter of clusters pinned in the page source due to entries being marked as active.
std::mutex	fLock
Internal::RPageSource *	fPageSource = nullptr
	Points to the page source backing the associated RNTupleReader.

Constructor & Destructor Documentation

RActiveEntriesControlBlock()

ROOT::RNTupleReader::RActiveEntriesControlBlock::RActiveEntriesControlBlock ( Internal::RPageSource * pageSource )

inlineexplicit

Definition at line 79 of file RNTupleReader.hxx.

Member Data Documentation

fActiveClusters

std::unordered_map<ROOT::DescriptorId_t, std::uint64_t> ROOT::RNTupleReader::RActiveEntriesControlBlock::fActiveClusters

Reference counter of clusters pinned in the page source due to entries being marked as active.

Definition at line 76 of file RNTupleReader.hxx.

fLock

std::mutex ROOT::RNTupleReader::RActiveEntriesControlBlock::fLock

Definition at line 77 of file RNTupleReader.hxx.

fPageSource

Internal::RPageSource* ROOT::RNTupleReader::RActiveEntriesControlBlock::fPageSource = nullptr

Points to the page source backing the associated RNTupleReader.

When the reader is destructed, the page source is reset to nullptr. At that point, operations on remaining active entry tokens become noops.

Definition at line 74 of file RNTupleReader.hxx.

Collaboration diagram for ROOT::RNTupleReader::RActiveEntriesControlBlock:

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

• tree/ntuple/inc/ROOT/RNTupleReader.hxx