Local optimization class.

Collection proxies get copied. On copy we switch the type of the proxy to the concrete STL type. The concrete types are optimized for element access.

Definition at line 39 of file TGenCollectionProxy.cxx.

Public Member Functions
	TGenVectorProxy (const TGenCollectionProxy &c)

virtual	~TGenVectorProxy ()

void *	At (UInt_t idx) override
	Return the address of the value at index 'idx'.

void	DeleteItem (Bool_t force, void *ptr) const override
	Call to delete/destruct individual item.

Public Member Functions inherited from TGenCollectionProxy
	TGenCollectionProxy (const ROOT::Detail::TCollectionProxyInfo &info, TClass *cl)
	Build a proxy for a collection whose type is described by 'collectionClass'.

	TGenCollectionProxy (const TGenCollectionProxy &copy)
	Build a proxy for an emulated container.

	TGenCollectionProxy (Info_t typ, size_t iter_size)
	Build a proxy for a collection whose type is described by 'collectionClass'.

virtual	~TGenCollectionProxy ()
	Standard destructor.

void *	Allocate (UInt_t n, Bool_t forceDelete) override
	Allocate the needed space.

void	Clear (const char *opt="") override
	Clear the emulated collection.

void	Commit (void *env) override
	Commit the change.

virtual TVirtualCollectionProxy *	Generate () const override
	Virtual copy constructor.

TClass *	GetCollectionClass () const override
	Return a pointer to the TClass representing the container.

Int_t	GetCollectionType () const override
	Return the type of collection see TClassEdit::ESTLType.

TStreamerInfoActions::TActionSequence *	GetConversionReadMemberWiseActions (TClass *oldClass, Int_t version) override
	Return the set of action necessary to stream in this collection member-wise coming from the old value class layout refered to by 'version'.

CopyIterator_t	GetFunctionCopyIterator (Bool_t read=kTRUE) override
	See typedef void (CopyIterator_t)(void &dest, const void *source); Copy the iterator source, into dest.

CreateIterators_t	GetFunctionCreateIterators (Bool_t read=kTRUE) override
	See typedef void (CreateIterators_t)(void collection, void &begin_arena, void &end_arena); begin_arena and end_arena should contain the location of memory arena of size fgIteratorSize.

DeleteIterator_t	GetFunctionDeleteIterator (Bool_t read=kTRUE) override
	See typedef void (DeleteIterator_t)(void iter); If the sizeof iterator is greater than fgIteratorArenaSize, call delete on the addresses, Otherwise just call the iterator's destructor.

DeleteTwoIterators_t	GetFunctionDeleteTwoIterators (Bool_t read=kTRUE) override
	See typedef void (DeleteTwoIterators_t)(void begin, void *end); If the sizeof iterator is greater than fgIteratorArenaSize, call delete on the addresses, Otherwise just call the iterator's destructor.

Next_t	GetFunctionNext (Bool_t read=kTRUE) override
	See typedef void* (Next_t)(void iter, void *end); iter and end should be pointer to respectively an iterator to be incremented and the result of colleciton.end() 'Next' will increment the iterator 'iter' and return 0 if the iterator reached the end.

ULong_t	GetIncrement () const override
	Return the offset between two consecutive value_types (memory layout).

virtual TClass *	GetOnFileClass () const

TStreamerInfoActions::TActionSequence *	GetReadMemberWiseActions (Int_t version) override
	Return the set of action necessary to stream in this collection member-wise coming from the old value class layout refered to by 'version'.

EDataType	GetType () const override
	If the content is a simple numerical value, return its type (see TDataType)

TClass *	GetValueClass () const override
	Return a pointer to the TClass representing the content.

TStreamerInfoActions::TActionSequence *	GetWriteMemberWiseActions () override
	Return the set of action necessary to stream out this collection member-wise.

Bool_t	HasPointers () const override
	Return true if the content is of type 'pointer to'.

void	Insert (const void data, void container, size_t size) override
	Insert data into the container where data is a C-style array of the actual type contained in the collection of the given size.

virtual void	operator() (TBuffer &refBuffer, void *pObject)
	TClassStreamer IO overload.

void	PopProxy () override
	Remove the last object.

void	PushProxy (void *objstart) override
	Add an object.

virtual void	ReadBuffer (TBuffer &b, void *obj)

virtual void	ReadBuffer (TBuffer &b, void obj, const TClass onfileClass)

Bool_t	Reset () override
	Reset the info gathered from StreamerInfos and value's TClass.

virtual void	Resize (UInt_t n, Bool_t force_delete)
	Resize the container.

virtual void	SetOnFileClass (TClass *cl)

UInt_t	Size () const override
	Return the current size of the container.

UInt_t	Sizeof () const override
	Return the sizeof the collection object.

virtual void	Streamer (TBuffer &refBuffer)
	Streamer Function.

virtual void	Streamer (TBuffer &refBuffer, void *pObject, int siz)
	Streamer I/O overload.

Public Member Functions inherited from TVirtualCollectionProxy
	TVirtualCollectionProxy ()

	TVirtualCollectionProxy (TClass *cl)

virtual	~TVirtualCollectionProxy ()

virtual void	DeleteArray (void *p, Bool_t dtorOnly=kFALSE) const

virtual void	Destructor (void *p, Bool_t dtorOnly=kFALSE) const

virtual Int_t	GetProperties () const

virtual void *	New () const

virtual void *	New (void *arena) const

virtual void *	NewArray (Int_t nElements) const

virtual void *	NewArray (Int_t nElements, void *arena) const

virtual TClass::ObjectPtr	NewObject () const

virtual TClass::ObjectPtr	NewObject (void *arena) const

virtual TClass::ObjectPtr	NewObjectArray (Int_t nElements) const

virtual TClass::ObjectPtr	NewObjectArray (Int_t nElements, void *arena) const

char *	operator[] (UInt_t idx) const

Additional Inherited Members
Public Types inherited from TGenCollectionProxy
enum	{ kBIT_ISSTRING = 0x20000000 , kBIT_ISTSTRING = 0x40000000 }

typedef const std::type_info &	Info_t

Public Types inherited from TVirtualCollectionProxy
typedef void (	CopyIterator_t) (void dest, const void source)

typedef void(*	CreateIterators_t) (void collection, void begin_arena, void end_arena, TVirtualCollectionProxy proxy)

typedef void(*	DeleteIterator_t) (void *iter)

typedef void(*	DeleteTwoIterators_t) (void begin, void end)

enum	EProperty { kIsAssociative = (1ULL << ( 2 )) , kIsEmulated = (1ULL << ( 3 )) , kNeedDelete = (1ULL << ( 4 )) , kCustomAlloc = (1ULL << ( 5 )) }

typedef void (	Next_t) (void iter, const void end)

Static Public Attributes inherited from TVirtualCollectionProxy
static const Int_t	fgIteratorArenaSize = 16

Protected Types inherited from TGenCollectionProxy
typedef void (	ArrIterfunc_t) (void *from, size_t size)

typedef void (	Collectfunc_t) (void from, void to)

typedef ROOT::Detail::TCollectionProxyInfo::Environ< char[64]>	Env_t

typedef ROOT::Detail::TCollectionProxyInfo::EnvironBase	EnvironBase_t

typedef void (	Feedfunc_t) (void from, void to, size_t size)

typedef std::vector< EnvironBase_t * >	Proxies_t

typedef void(*	Sizing_t) (void *obj, size_t size)

typedef std::vector< TStaging * >	Staged_t
	Collection of pre-allocated staged array for associative containers.

Protected Member Functions inherited from TGenCollectionProxy
void	CheckFunctions () const
	Check existence of function pointers.

TGenCollectionProxy *	Initialize (Bool_t silent) const
	Proxy initializer.

virtual TGenCollectionProxy *	InitializeEx (Bool_t silent)
	Proxy initializer.

Protected Attributes inherited from TGenCollectionProxy
Method	fClear
	Method cache for container accessors: clear container.

Collectfunc_t	fCollect
	Method to collect objects from container.

ArrIterfunc_t	fConstruct
	Container accessors: block construct.

std::map< std::string, TObjArray * > *	fConversionReadMemberWise
	Array of bundle of TStreamerInfoActions to stream out (read) derived from another class.

Method0	fCreateEnv
	Method to allocate an Environment holder.

Sizing_t	fDestruct
	Container accessors: block destruct.

EnvironBase_t *	fEnv
	Address of the currently proxied object.

Feedfunc_t	fFeed
	Container accessors: block feed.

Method	fFirst
	Container accessors: generic iteration: first.

CopyIterator_t	fFunctionCopyIterator

CreateIterators_t	fFunctionCreateIterators

DeleteIterator_t	fFunctionDeleteIterator

DeleteTwoIterators_t	fFunctionDeleteTwoIterators

Next_t	fFunctionNextIterator

Value *	fKey
	Descriptor of the key_type.

std::string	fName
	Name of the class being proxied.

Method	fNext
	Container accessors: generic iteration: next.

TClass *	fOnFileClass
	On file class.

Bool_t	fPointers
	Flag to indicate if containee has pointers (key or value)

Proxies_t	fProxyKept
	Optimization: Keep proxies once they were created.

Proxies_t	fProxyList
	Stack of recursive proxies.

TObjArray *	fReadMemberWise
	Array of bundle of TStreamerInfoActions to stream out (read)

Sizing_t	fResize
	Container accessors: resize container.

Method	fSize
	Container accessors: size of container.

Staged_t	fStaged
	Optimization: Keep staged array once they were created.

int	fSTL_type
	STL container type.

Info_t	fTypeinfo
	Type information.

Value *	fVal
	Descriptor of the Value_type.

int	fValDiff
	Offset between two consecutive value_types (memory layout).

int	fValOffset
	Offset from key to value (in maps)

std::atomic< Value * >	fValue
	Descriptor of the container value type.

TStreamerInfoActions::TActionSequence *	fWriteMemberWise

Protected Attributes inherited from TVirtualCollectionProxy
TClassRef	fClass

UInt_t	fProperties

Inheritance diagram for TGenVectorProxy:

[legend]

Constructor & Destructor Documentation

◆ TGenVectorProxy()

TGenVectorProxy::TGenVectorProxy ( const TGenCollectionProxy & c )

inline

Definition at line 42 of file TGenCollectionProxy.cxx.

◆ ~TGenVectorProxy()

virtual TGenVectorProxy::~TGenVectorProxy ( )

inlinevirtual

Definition at line 46 of file TGenCollectionProxy.cxx.

Member Function Documentation

◆ At()

void * TGenVectorProxy::At ( UInt_t idx )

inlineoverridevirtual

Return the address of the value at index 'idx'.

Reimplemented from TGenCollectionProxy.

Definition at line 50 of file TGenCollectionProxy.cxx.

◆ DeleteItem()

void TGenVectorProxy::DeleteItem	(	Bool_t	force,
		void *	ptr
	)		const

inlineoverridevirtual

Call to delete/destruct individual item.

Reimplemented from TGenCollectionProxy.

Definition at line 66 of file TGenCollectionProxy.cxx.

io/io/src/TGenCollectionProxy.cxx