// @(#)root/tree:$Id: TBranchElement.h 40872 2011-09-13 21:33:33Z pcanal $ // Author: Rene Brun 14/01/2001 /************************************************************************* * Copyright (C) 1995-2000, Rene Brun and Fons Rademakers. * * All rights reserved. * * * * For the licensing terms see $ROOTSYS/LICENSE. * * For the list of contributors see $ROOTSYS/README/CREDITS. * *************************************************************************/ #ifndef ROOT_TBranchElement #define ROOT_TBranchElement ////////////////////////////////////////////////////////////////////////// // // // TBranchElement // // // // A Branch for the case of an object. // ////////////////////////////////////////////////////////////////////////// #ifndef ROOT_TBranch #include "TBranch.h" #endif #ifndef ROOT_TClassRef #include "TClassRef.h" #endif #ifndef ROOT_TTree #include "TTree.h" #endif #ifndef ROOT_TError #include "TError.h" #endif #include class TFolder; class TStreamerInfo; class TVirtualCollectionProxy; class TVirtualCollectionIterators; class TVirtualCollectionPtrIterators; class TVirtualArray; namespace TStreamerInfoActions { class TActionSequence; } class TBranchElement : public TBranch { // Friends friend class TTreeCloner; // Types protected: enum { kBranchFolder = BIT(14), kDeleteObject = BIT(16), // We are the owner of fObject. kCache = BIT(18), // Need to pushd/pop fOnfileObject. kOwnOnfileObj = BIT(19), // We are the owner of fOnfileObject. kAddressSet = BIT(20), // The addressing set have been called for this branch kMakeClass = BIT(21), // This branch has been switched to using the MakeClass Mode kDecomposedObj= BIT(21) // More explicit alias for kMakeClass. }; // Data Members protected: TString fClassName; // Class name of referenced object TString fParentName; // Name of parent class TString fClonesName; // Name of class in TClonesArray (if any) TVirtualCollectionProxy *fCollProxy; //! collection interface (if any) UInt_t fCheckSum; // CheckSum of class Int_t fClassVersion; // Version number of class Int_t fID; // element serial number in fInfo Int_t fType; // branch type Int_t fStreamerType; // branch streamer type Int_t fMaximum; // Maximum entries for a TClonesArray or variable array Int_t fSTLtype; //! STL container type Int_t fNdata; //! Number of data in this branch TBranchElement *fBranchCount; // pointer to primary branchcount branch TBranchElement *fBranchCount2; // pointer to secondary branchcount branch TStreamerInfo *fInfo; //! Pointer to StreamerInfo char *fObject; //! Pointer to object at *fAddress TVirtualArray *fOnfileObject; //! Place holder for the onfile representation of data members. Bool_t fInit; //! Initialization flag for branch assignment Bool_t fInitOffsets; //! Initialization flag to not endlessly recalculate offsets TClassRef fTargetClass; //! Reference to the target in-memory class TClassRef fCurrentClass; //! Reference to current (transient) class definition TClassRef fParentClass; //! Reference to class definition in fParentName TClassRef fBranchClass; //! Reference to class definition in fClassName TClassRef fClonesClass; //! Reference to class definition in fClonesName Int_t *fBranchOffset; //! Sub-Branch offsets with respect to current transient class Int_t fBranchID; //! ID number assigned by a TRefTable. std::vector fIDs; //! List of the serial number of all the StreamerInfo to be used. TStreamerInfoActions::TActionSequence *fReadActionSequence; //! Set of actions to be executed to extract the data from the basket. TStreamerInfoActions::TActionSequence *fFillActionSequence; //! Set of actions to be executed to write the data to the basket. TVirtualCollectionIterators *fIterators; //! holds the iterators when the branch is of fType==4. TVirtualCollectionPtrIterators *fPtrIterators; //! holds the iterators when the branch is of fType==4 and it is a split collection of pointers. // Not implemented private: TBranchElement(const TBranchElement&); // not implemented TBranchElement& operator=(const TBranchElement&); // not implemented static void SwitchContainer(TObjArray *); // Implementation use only functions. protected: void BuildTitle(const char* name); virtual void InitializeOffsets(); virtual void InitInfo(); Bool_t IsMissingCollection() const; TClass *GetCurrentClass(); // Class referenced by transient description TClass *GetParentClass(); // Class referenced by fParentName TStreamerInfo *GetInfoImp() const; void ReleaseObject(); void SetBranchCount(TBranchElement* bre); void SetBranchCount2(TBranchElement* bre) { fBranchCount2 = bre; } Int_t Unroll(const char* name, TClass* cltop, TClass* cl, char* ptr, Int_t basketsize, Int_t splitlevel, Int_t btype); inline void ValidateAddress() const; void Init(TTree *tree, TBranch *parent, const char* name, TStreamerInfo* sinfo, Int_t id, char* pointer, Int_t basketsize = 32000, Int_t splitlevel = 0, Int_t btype = 0); void Init(TTree *tree, TBranch *parent, const char* name, TClonesArray* clones, Int_t basketsize = 32000, Int_t splitlevel = 0, Int_t compress = -1); void Init(TTree *tree, TBranch *parent, const char* name, TVirtualCollectionProxy* cont, Int_t basketsize = 32000, Int_t splitlevel = 0, Int_t compress = -1); void ReadLeavesImpl(TBuffer& b); void ReadLeavesMakeClass(TBuffer& b); void ReadLeavesCollection(TBuffer& b); void ReadLeavesCollectionSplitPtrMember(TBuffer& b); void ReadLeavesCollectionSplitVectorPtrMember(TBuffer& b); void ReadLeavesCollectionMember(TBuffer& b); void ReadLeavesClones(TBuffer& b); void ReadLeavesClonesMember(TBuffer& b); void ReadLeavesCustomStreamer(TBuffer& b); void ReadLeavesMember(TBuffer& b); void ReadLeavesMemberBranchCount(TBuffer& b); void ReadLeavesMemberCounter(TBuffer& b); void SetReadLeavesPtr(); void SetReadActionSequence(); void SetupAddressesImpl(); void FillLeavesImpl(TBuffer& b); void FillLeavesMakeClass(TBuffer& b); void FillLeavesCollection(TBuffer& b); void FillLeavesCollectionSplitVectorPtrMember(TBuffer& b); void FillLeavesCollectionSplitPtrMember(TBuffer& b); void FillLeavesCollectionMember(TBuffer& b); void FillLeavesClones(TBuffer& b); void FillLeavesClonesMember(TBuffer& b); void FillLeavesCustomStreamer(TBuffer& b); void FillLeavesMemberBranchCount(TBuffer& b); void FillLeavesMemberCounter(TBuffer& b); void FillLeavesMember(TBuffer& b); void SetFillLeavesPtr(); void SetFillActionSequence(); // Public Interface. public: TBranchElement(); TBranchElement(TTree *tree, const char* name, TStreamerInfo* sinfo, Int_t id, char* pointer, Int_t basketsize = 32000, Int_t splitlevel = 0, Int_t btype = 0); TBranchElement(TTree *tree, const char* name, TClonesArray* clones, Int_t basketsize = 32000, Int_t splitlevel = 0, Int_t compress = -1); TBranchElement(TTree *tree, const char* name, TVirtualCollectionProxy* cont, Int_t basketsize = 32000, Int_t splitlevel = 0, Int_t compress = -1); TBranchElement(TBranch *parent, const char* name, TStreamerInfo* sinfo, Int_t id, char* pointer, Int_t basketsize = 32000, Int_t splitlevel = 0, Int_t btype = 0); TBranchElement(TBranch *parent, const char* name, TClonesArray* clones, Int_t basketsize = 32000, Int_t splitlevel = 0, Int_t compress = -1); TBranchElement(TBranch *parent, const char* name, TVirtualCollectionProxy* cont, Int_t basketsize = 32000, Int_t splitlevel = 0, Int_t compress = -1); virtual ~TBranchElement(); virtual void Browse(TBrowser* b); virtual Int_t Fill(); virtual TBranch *FindBranch(const char *name); virtual TLeaf *FindLeaf(const char *name); virtual char *GetAddress() const; TBranchElement *GetBranchCount() const { return fBranchCount; } TBranchElement *GetBranchCount2() const { return fBranchCount2; } Int_t *GetBranchOffset() const { return fBranchOffset; } UInt_t GetCheckSum() { return fCheckSum; } virtual const char *GetClassName() const { return fClassName.Data(); } virtual TClass *GetClass() const { return fBranchClass; } virtual const char *GetClonesName() const { return fClonesName.Data(); } TVirtualCollectionProxy *GetCollectionProxy(); virtual Int_t GetEntry(Long64_t entry = 0, Int_t getall = 0); virtual Int_t GetExpectedType(TClass *&clptr,EDataType &type); const char *GetIconName() const; Int_t GetID() const { return fID; } TStreamerInfo *GetInfo() const; Bool_t GetMakeClass() const; char *GetObject() const; virtual const char *GetParentName() const { return fParentName.Data(); } virtual Int_t GetMaximum() const; Int_t GetNdata() const { return fNdata; } Int_t GetType() const { return fType; } Int_t GetStreamerType() const { return fStreamerType; } virtual TClass *GetTargetClass() { return fTargetClass; } virtual const char *GetTypeName() const; Double_t GetValue(Int_t i, Int_t len, Bool_t subarr = kFALSE) const; virtual void *GetValuePointer() const; Int_t GetClassVersion() { return fClassVersion; } Bool_t IsBranchFolder() const { return TestBit(kBranchFolder); } Bool_t IsFolder() const; virtual Bool_t IsObjectOwner() const { return TestBit(kDeleteObject); } virtual Bool_t Notify() { if (fAddress) { ResetAddress(); } return 1; } virtual void Print(Option_t* option = "") const; void PrintValue(Int_t i) const; virtual void Reset(Option_t* option = ""); virtual void ResetAfterMerge(TFileMergeInfo *); virtual void ResetAddress(); virtual void ResetDeleteObject(); virtual void SetAddress(void* addobj); virtual Bool_t SetMakeClass(Bool_t decomposeObj = kTRUE); virtual void SetObject(void *objadd); virtual void SetBasketSize(Int_t buffsize); virtual void SetBranchFolder() { SetBit(kBranchFolder); } virtual void SetClassName(const char* name) { fClassName = name; } virtual void SetOffset(Int_t offset); inline void SetParentClass(TClass* clparent); virtual void SetParentName(const char* name) { fParentName = name; } virtual void SetTargetClass(const char *name); virtual void SetupAddresses(); virtual void SetType(Int_t btype) { fType = btype; } virtual void UpdateFile(); ClassDef(TBranchElement,9) // Branch in case of an object }; inline void TBranchElement::SetParentClass(TClass* clparent) { fParentClass = clparent; fParentName = clparent ? clparent->GetName() : ""; } inline void TBranchElement::ValidateAddress() const { // Check to see if the user changed the object pointer without telling us. if (fID < 0) { // We are a top-level branch. if (!fTree->GetMakeClass() && fAddress && (*((char**) fAddress) != fObject)) { // The semantics of fAddress and fObject are violated. // Assume the user changed the pointer on us. // Note: The cast is here because we want to be able to // be called from the constant get functions. // FIXME: Disable the check/warning TTree until we add a missing interface. if (TestBit(kDeleteObject)) { // This should never happen! Error("ValidateAddress", "We owned an object whose address changed! our ptr: %p new ptr: %p", fObject, *((char**) fAddress)); const_cast(this)->ResetBit(kDeleteObject); } const_cast(this)->SetAddress(fAddress); } } } #endif // ROOT_TBranchElement