Definition at line 60 of file TTreeProcessorMT.hxx.

Public Member Functions
	TTreeView (std::string_view fn, std::string_view tn)
	Constructor based on a file name. More...

	TTreeView (const std::vector< std::string_view > &fns, std::string_view tn)
	Constructor based on a collection of file names. More...

	TTreeView (TTree &tree)
	Constructor based on a TTree. More...

	TTreeView (TTree &tree, TEntryList &entries)
	Constructor based on a TTree and a TEntryList. More...

	TTreeView (const TTreeView &view)
	Copy constructor. More...

const std::vector< std::string > &	GetFileNames () const
	Get the filenames for this view. More...

const std::vector< std::vector< std::string > > &	GetFriendFileNames () const

const std::vector< NameAlias > &	GetFriendNames () const

std::string	GetTreeName () const
	Get the name of the tree of this view. More...

TreeReaderEntryListPair	GetTreeReader (Long64_t start, Long64_t end, const std::vector< Long64_t > &nEntries, const std::vector< std::vector< Long64_t >> &friendEntries)
	Get a TTreeReader for the current tree of this view. More...

void	PopTaskFirstEntry ()
	Restore the tree of the previous loaded entry, if any. More...

void	PushTaskFirstEntry (Long64_t entry)
	Push a new loaded entry to the stack. More...

Private Types
using	NameAlias = std::pair< std::string, std::string >

using	TreeReaderEntryListPair = std::pair< std::unique_ptr< TTreeReader >, std::unique_ptr< TEntryList > >

Private Member Functions
void	GetTreeNameIfNeeded ()
	If not treeName was provided to the ctor, use the name of the first TTree in the first file, else throw. More...

void	MakeChain (const std::vector< Long64_t > &nEntries, const std::vector< std::vector< Long64_t >> &friendEntries)
	Construct fChain, also adding friends if needed and injecting knowledge of offsets if available. More...

std::unique_ptr< TTreeReader >	MakeReader (Long64_t start, Long64_t end)

TreeReaderEntryListPair	MakeReaderWithEntryList (Long64_t start, Long64_t end)

void	StoreFriends (const TTree &tree, bool isTree)
	Get and store the names, aliases and file names of the friends of the tree. More...

Private Attributes
std::unique_ptr< TChain >	fChain
	Chain on which to operate. More...

TEntryList	fEntryList
	User-defined selection of entry numbers to be processed, empty if none was provided. More...

std::vector< std::string >	fFileNames
	Names of the files. More...

std::vector< std::vector< std::string > >	fFriendFileNames
	Names of the files where friends are stored. More...

std::vector< NameAlias >	fFriendNames
	<name,alias> pairs of the friends of the tree/chain More...

std::vector< std::unique_ptr< TChain > >	fFriends
	Friends of the tree/chain. More...

std::vector< Long64_t >	fLoadedEntries
	! Per-task loaded entries (for task interleaving) More...

std::string	fTreeName
	Name of the tree. More...

#include <ROOT/TTreeProcessorMT.hxx>

Member Typedef Documentation

◆ NameAlias

using ROOT::Internal::TTreeView::NameAlias = std::pair<std::string, std::string>

private

Definition at line 63 of file TTreeProcessorMT.hxx.

◆ TreeReaderEntryListPair

using ROOT::Internal::TTreeView::TreeReaderEntryListPair = std::pair<std::unique_ptr<TTreeReader>, std::unique_ptr<TEntryList> >

private

Definition at line 62 of file TTreeProcessorMT.hxx.

Constructor & Destructor Documentation

◆ TTreeView() [1/5]

ROOT::Internal::TTreeView::TTreeView	(	std::string_view	fn,
		std::string_view	tn
	)

inline

Constructor based on a file name.

Parameters

[in]	fn	Name of the file containing the tree to process.
[in]	tn	Name of the tree to process. If not provided, the implementation will automatically search for a tree in the file.

Definition at line 193 of file TTreeProcessorMT.hxx.

◆ TTreeView() [2/5]

ROOT::Internal::TTreeView::TTreeView	(	const std::vector< std::string_view > &	fns,
		std::string_view	tn
	)

inline

Constructor based on a collection of file names.

Parameters

[in]	fns	Collection of file names containing the tree to process.
[in]	tn	Name of the tree to process. If not provided, the implementation will automatically search for a tree in the collection of files.

Definition at line 205 of file TTreeProcessorMT.hxx.

◆ TTreeView() [3/5]

TTreeView::TTreeView ( TTree & tree )

Constructor based on a TTree.

Parameters

[in] tree Tree or chain of files containing the tree to process.

Definition at line 115 of file TTreeProcessorMT.cxx.

◆ TTreeView() [4/5]

ROOT::Internal::TTreeView::TTreeView	(	TTree &	tree,
		TEntryList &	entries
	)

inline

Constructor based on a TTree and a TEntryList.

Parameters

[in]	tree	Tree or chain of files containing the tree to process.
[in]	entries	List of entry numbers to process.

Definition at line 227 of file TTreeProcessorMT.hxx.

◆ TTreeView() [5/5]

ROOT::Internal::TTreeView::TTreeView ( const TTreeView & view )

inline

Copy constructor.

Parameters

[in] view Object to copy.

Definition at line 238 of file TTreeProcessorMT.hxx.

Member Function Documentation

◆ GetFileNames()

const std::vector<std::string>& ROOT::Internal::TTreeView::GetFileNames ( ) const

inline

Get the filenames for this view.

Definition at line 277 of file TTreeProcessorMT.hxx.

◆ GetFriendFileNames()

const std::vector<std::vector<std::string> >& ROOT::Internal::TTreeView::GetFriendFileNames ( ) const

inline

Definition at line 308 of file TTreeProcessorMT.hxx.

◆ GetFriendNames()

const std::vector<NameAlias>& ROOT::Internal::TTreeView::GetFriendNames ( ) const

inline

Definition at line 303 of file TTreeProcessorMT.hxx.

◆ GetTreeName()

std::string ROOT::Internal::TTreeView::GetTreeName ( ) const

inline

Get the name of the tree of this view.

Definition at line 284 of file TTreeProcessorMT.hxx.

◆ GetTreeNameIfNeeded()

void ROOT::Internal::TTreeView::GetTreeNameIfNeeded ( )

inlineprivate

If not treeName was provided to the ctor, use the name of the first TTree in the first file, else throw.

Definition at line 77 of file TTreeProcessorMT.hxx.

◆ GetTreeReader()

TreeReaderEntryListPair ROOT::Internal::TTreeView::GetTreeReader	(	Long64_t	start,
		Long64_t	end,
		const std::vector< Long64_t > &	nEntries,
		const std::vector< std::vector< Long64_t >> &	friendEntries
	)

inline

Get a TTreeReader for the current tree of this view.

Definition at line 257 of file TTreeProcessorMT.hxx.

◆ MakeChain()

void ROOT::Internal::TTreeView::MakeChain	(	const std::vector< Long64_t > &	nEntries,
		const std::vector< std::vector< Long64_t >> &	friendEntries
	)

inlineprivate

Construct fChain, also adding friends if needed and injecting knowledge of offsets if available.

Definition at line 100 of file TTreeProcessorMT.hxx.

◆ MakeReader()

std::unique_ptr<TTreeReader> ROOT::Internal::TTreeView::MakeReader	(	Long64_t	start,
		Long64_t	end
	)

inlineprivate

Definition at line 178 of file TTreeProcessorMT.hxx.

◆ MakeReaderWithEntryList()

TreeReaderEntryListPair ROOT::Internal::TTreeView::MakeReaderWithEntryList	(	Long64_t	start,
		Long64_t	end
	)

inlineprivate

Definition at line 163 of file TTreeProcessorMT.hxx.

◆ PopTaskFirstEntry()

void ROOT::Internal::TTreeView::PopTaskFirstEntry ( )

inline

Restore the tree of the previous loaded entry, if any.

Definition at line 295 of file TTreeProcessorMT.hxx.

◆ PushTaskFirstEntry()

void ROOT::Internal::TTreeView::PushTaskFirstEntry ( Long64_t entry )

inline

Push a new loaded entry to the stack.

Definition at line 291 of file TTreeProcessorMT.hxx.

◆ StoreFriends()

void ROOT::Internal::TTreeView::StoreFriends	(	const TTree &	tree,
		bool	isTree
	)

inlineprivate

Get and store the names, aliases and file names of the friends of the tree.

Definition at line 130 of file TTreeProcessorMT.hxx.

Member Data Documentation

◆ fChain

std::unique_ptr<TChain> ROOT::Internal::TTreeView::fChain

private

Chain on which to operate.

Definition at line 67 of file TTreeProcessorMT.hxx.

◆ fEntryList

TEntryList ROOT::Internal::TTreeView::fEntryList

private

User-defined selection of entry numbers to be processed, empty if none was provided.

Definition at line 70 of file TTreeProcessorMT.hxx.

◆ fFileNames

std::vector<std::string> ROOT::Internal::TTreeView::fFileNames

private

Names of the files.

Definition at line 68 of file TTreeProcessorMT.hxx.

◆ fFriendFileNames

std::vector<std::vector<std::string> > ROOT::Internal::TTreeView::fFriendFileNames

private

Names of the files where friends are stored.

Definition at line 73 of file TTreeProcessorMT.hxx.

◆ fFriendNames

std::vector<NameAlias> ROOT::Internal::TTreeView::fFriendNames

private

<name,alias> pairs of the friends of the tree/chain

Definition at line 72 of file TTreeProcessorMT.hxx.

◆ fFriends

std::vector<std::unique_ptr<TChain> > ROOT::Internal::TTreeView::fFriends

private

Friends of the tree/chain.

Definition at line 66 of file TTreeProcessorMT.hxx.

◆ fLoadedEntries

std::vector<Long64_t> ROOT::Internal::TTreeView::fLoadedEntries

private

! Per-task loaded entries (for task interleaving)

Definition at line 71 of file TTreeProcessorMT.hxx.

◆ fTreeName

std::string ROOT::Internal::TTreeView::fTreeName

private

Name of the tree.

Definition at line 69 of file TTreeProcessorMT.hxx.

Libraries for ROOT::Internal::TTreeView:

[legend]

Public Member Functions

Private Types

Private Member Functions

Private Attributes

Member Typedef Documentation

◆ NameAlias

◆ TreeReaderEntryListPair

Constructor & Destructor Documentation

◆ TTreeView() [1/5]

◆ TTreeView() [2/5]

◆ TTreeView() [3/5]

◆ TTreeView() [4/5]

◆ TTreeView() [5/5]

Member Function Documentation

◆ GetFileNames()

◆ GetFriendFileNames()

◆ GetFriendNames()

◆ GetTreeName()

◆ GetTreeNameIfNeeded()

◆ GetTreeReader()

◆ MakeChain()

◆ MakeReader()

◆ MakeReaderWithEntryList()

◆ PopTaskFirstEntry()

◆ PushTaskFirstEntry()

◆ StoreFriends()

Member Data Documentation

◆ fChain

◆ fEntryList

◆ fFileNames

◆ fFriendFileNames

◆ fFriendNames

◆ fFriends

◆ fLoadedEntries

◆ fTreeName