// @(#)root/tree:$Name: $:$Id: TBranchElement.cxx,v 1.90 2002/07/19 22:52:49 rdm Exp $
// 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. *
*************************************************************************/
//////////////////////////////////////////////////////////////////////////
// //
// TBranchElement //
// //
// A Branch for the case of an object //
// //
//////////////////////////////////////////////////////////////////////////
#include "TROOT.h"
#include "TFile.h"
#include "TBranchElement.h"
#include "TBranchObject.h"
#include "TClonesArray.h"
#include "TTree.h"
#include "TBasket.h"
#include "TLeafElement.h"
#include "TVirtualPad.h"
#include "TClass.h"
#include "TBaseClass.h"
#include "TRealData.h"
#include "TDataType.h"
#include "TDataMember.h"
#include "TStreamerInfo.h"
#include "TStreamerElement.h"
#include "TBrowser.h"
#include "TFolder.h"
#include "Api.h"
const Int_t kMaxLen = 1024;
R__EXTERN TTree *gTree;
ClassImp(TBranchElement)
//______________________________________________________________________________
TBranchElement::TBranchElement(): TBranch()
{
//*-*-*-*-*-*Default constructor for BranchElement*-*-*-*-*-*-*-*-*-*
//*-* ====================================
fNleaves = 1;
fInfo = 0;
fBranchCount = 0;
fBranchCount2 = 0;
fObject = 0;
fMaximum = 0;
fBranchPointer = 0;
fNdata = 1;
}
//______________________________________________________________________________
TBranchElement::TBranchElement(const char *bname, TStreamerInfo *sinfo, Int_t id, char *pointer, Int_t basketsize, Int_t splitlevel, Int_t btype)
:TBranch()
{
// Create a BranchElement
//
// If splitlevel > 0 this branch in turn is split into sub branches
if (gDebug > 0) {
printf("BranchElement, bname=%s, sinfo=%s, id=%d, splitlevel=%dn",bname,sinfo->GetName(),id,splitlevel);
}
char name[kMaxLen];
strcpy(name,bname);
SetName(name);
SetTitle(name);
fSplitLevel = splitlevel;
if (id < 0) splitlevel = 0;
TClass *cl = sinfo->GetClass();
fInfo = sinfo;
fID = id;
fStreamerType = -1;
fType = 0;
fBranchCount = 0;
fBranchCount2 = 0;
fObject = 0;
fBranchPointer= 0;
fNdata = 1;
fClassVersion = cl->GetClassVersion();
fTree = gTree;
fMaximum = 0;
ULong_t *elems = sinfo->GetElems();
TStreamerElement *element = 0;
TBranchElement *brcount = 0;
if (id >= 0) {
element = (TStreamerElement *)elems[id];
fStreamerType = element->GetType();
if (fStreamerType == TStreamerInfo::kObject
|| fStreamerType == TStreamerInfo::kBase
|| fStreamerType == TStreamerInfo::kTNamed
|| fStreamerType == TStreamerInfo::kTObject
|| fStreamerType == TStreamerInfo::kObjectp
|| fStreamerType == TStreamerInfo::kObjectP) {
if (cl->InheritsFrom(TObject::Class())) SetBit(kBranchObject);
}
if (element->IsA() == TStreamerBasicPointer::Class()) {
TStreamerBasicPointer *bp = (TStreamerBasicPointer *)element;
char countname[kMaxLen];
strcpy(countname,bname);
char *dot = strrchr(countname,'.');
if (dot) *(dot+1) = 0;
else countname[0] = 0;
strcat(countname,bp->GetCountName());
brcount = (TBranchElement *)fTree->GetBranch(countname);
sprintf(countname,"%s[%s]",name,bp->GetCountName());
SetTitle(countname);
}
} else {
if (cl->InheritsFrom(TObject::Class())) SetBit(kBranchObject);
}
// Set the bit kAutoDelete to specify that when reading
// the object should be deleted before calling Streamer.
// It is foreseen to not set this bit in a future version.
//SetAutoDelete(kTRUE);
SetAutoDelete(kFALSE);
fDirectory = fTree->GetDirectory();
fFileName = "";
fClassName = sinfo->GetName();
if (gDebug > 1) printf("Building Branch=%s, class=%s, info=%s, version=%d, id=%d, fStreamerType=%d, btype=%dn",bname,cl->GetName(),sinfo->GetName(),fClassVersion,id,fStreamerType,btype);
fCompress = -1;
if (gTree->GetDirectory()) {
TFile *bfile = gTree->GetDirectory()->GetFile();
if (bfile) fCompress = bfile->GetCompressionLevel();
}
//change defaults set in TBranch constructor
fEntryOffsetLen = 0;
if (btype || fStreamerType <= 0
|| fStreamerType == 7
|| fStreamerType > 15) fEntryOffsetLen = 1000;
if (basketsize < 100+fEntryOffsetLen) basketsize = 100+fEntryOffsetLen;
fBasketSize = basketsize;
fBasketEntry = new Int_t[fMaxBaskets];
fBasketBytes = new Int_t[fMaxBaskets];
fBasketSeek = new Seek_t[fMaxBaskets];
fBasketEntry[0] = fEntryNumber;
fBasketBytes[0] = 0;
// Create a basket for the terminal branch
TBasket *basket = new TBasket(name,fTree->GetName(),this);
fBaskets.Add(basket);
// save pointer (if non null). Will be used in Unroll in case we find
// a TClonesArray in a derived class.
if (pointer) fBranchPointer = pointer;
// create sub branches if requested by splitlevel
if (splitlevel > 0) {
TClass *clm;
if (element->CannotSplit()) {
//printf("element: %s/%s will not be splitn",element->GetName(),element->GetTitle());
} else if (element->IsA() == TStreamerBase::Class()) {
// ===> develop the base class
fType = 1;
clm = gROOT->GetClass(element->GetName());
Int_t nbranches = fBranches.GetEntriesFast();
if (!strcmp(name,clm->GetName())) Unroll("",cl,clm,basketsize,splitlevel,0);
else Unroll(name,clm,clm,basketsize,splitlevel,0);
if (!strcmp(name,clm->GetName())) return;
if (strchr(bname,'.')) return;
if (nbranches == fBranches.GetEntriesFast()) {
if (strlen(bname)) sprintf(name,"%s.%s",bname,clm->GetName());
else sprintf(name,"%s",clm->GetName());
SetName(name);
SetTitle(name);
}
return;
} else if (!strcmp(element->GetTypeName(),"TClonesArray") || !strcmp(element->GetTypeName(),"TClonesArray*")) {
Bool_t ispointer = !strcmp(element->GetTypeName(),"TClonesArray*");
TClonesArray *clones;
if (ispointer) {
char **ppointer = (char**)(pointer);
clones = (TClonesArray*)(*ppointer);
} else {
clones = (TClonesArray*)pointer;
}
basket->DeleteEntryOffset(); //entryoffset not required for the clonesarray counter
fEntryOffsetLen = 0;
clm = clones->GetClass();
if (!clm) return;
// ===> Create a leafcount
TLeaf *leaf = new TLeafElement(name,fID, fStreamerType);
leaf->SetBranch(this);
fNleaves = 1;
fLeaves.Add(leaf);
fTree->GetListOfLeaves()->Add(leaf);
// Create a basket for the leafcount
TBasket *basket2 = new TBasket(name,fTree->GetName(),this);
fBaskets.Add(basket2);
// ===> create sub branches for each data member of a TClonesArray
fType = 3;
//check that the contained objects class name is part of the element title
//This name is mandatory when reading the Tree later on and
//the parent class with the pointer to the TClonesArray is not available.
//This info will be used by TStreamerInfo::New
fClonesName = clm->GetName();
char aname[100];
sprintf(aname," (%s)",clm->GetName());
TString atitle = element->GetTitle();
if (!atitle.Contains(aname)) {
atitle += aname;
element->SetTitle(atitle.Data());
}
char branchname[kMaxLen];
sprintf(branchname,"%s_",name);
SetTitle(branchname);
leaf->SetName(branchname);
leaf->SetTitle(branchname);
Unroll(name,clm,clm,basketsize,splitlevel,31);
BuildTitle(name);
return;
} else if (!strchr(element->GetTypeName(),'*') && (fStreamerType == TStreamerInfo::kObject || fStreamerType == TStreamerInfo::kAny)) {
// ===> create sub branches for members that are classes
fType = 2;
clm = gROOT->GetClass(element->GetTypeName());
if (Unroll(name,clm,clm,basketsize,splitlevel,0) >= 0) return;
} else if (strstr(element->GetTypeName(),"vector<")) {
// ===> create sub branches for each data member of a STL vector
// if it is a vector of class objects.
// STL vectors like vector<float> are not split
fType = 0;
char classname[kMaxLen];
strcpy(classname,element->GetTypeName()+7);
char *star = strchr(classname,'>');
*star = 0;
clm = gROOT->GetClass(classname);
if (clm) {
TLeaf *leaf = new TLeafElement(name,fID, fStreamerType);
leaf->SetBranch(this);
fNleaves = 1;
fLeaves.Add(leaf);
fTree->GetListOfLeaves()->Add(leaf);
// Create a basket for the leafcount
TBasket *basket = new TBasket(name,fTree->GetName(),this);
fBaskets.Add(basket);
// ===> create sub branches for each data member of the class
fType = 4;
char branchname[kMaxLen];
sprintf(branchname,"%s_",name);
SetTitle(branchname);
Unroll(name,clm,clm,basketsize,splitlevel,41);
TStreamerSTL *stl = (TStreamerSTL*)element;
if (stl->GetSTLtype() == 1 && stl->GetCtype() == 61) {
printf("will split this STL vector: %s of %sn",name,classname);
}
if (stl->GetSTLtype() == 41 && stl->GetCtype() == 61) {
printf("will split this pointer to STL vector: %s of %sn",name,classname);
}
return;
}
}
}
TLeaf *leaf = new TLeafElement(GetTitle(),fID, fStreamerType);
leaf->SetTitle(GetTitle());
leaf->SetBranch(this);
fNleaves = 1;
fLeaves.Add(leaf);
gTree->GetListOfLeaves()->Add(leaf);
if (brcount) SetBranchCount(brcount);
}
//______________________________________________________________________________
TBranchElement::TBranchElement(const char *bname, TClonesArray *clones, Int_t basketsize, Int_t splitlevel, Int_t compress)
:TBranch()
{
// Create a BranchElement
//
// If splitlevel > 0 this branch in turn is split into sub branches
char name[kMaxLen];
strcpy(name,bname);
fSplitLevel = splitlevel;
fInfo = TClonesArray::Class()->GetStreamerInfo();
fID = 0;
fStreamerType = -1;
fType = 0;
fClassVersion = TClonesArray::Class()->GetClassVersion();
fBranchCount = 0;
fBranchCount2 = 0;
fObject = 0;
fBranchPointer= 0;
fMaximum = 0;
fTree = gTree;
fDirectory = fTree->GetDirectory();
fFileName = "";
SetName(name);
SetTitle(name);
fClassName = fInfo->GetName();
fCompress = compress;
if (compress == -1 && fTree->GetDirectory()) {
TFile *bfile = fTree->GetDirectory()->GetFile();
if (bfile) fCompress = bfile->GetCompressionLevel();
}
if (basketsize < 100) basketsize = 100;
fBasketSize = basketsize;
fBasketEntry = new Int_t[fMaxBaskets];
fBasketBytes = new Int_t[fMaxBaskets];
fBasketSeek = new Seek_t[fMaxBaskets];
fBasketEntry[0] = fEntryNumber;
fBasketBytes[0] = 0;
// Create a basket for the terminal branch
TBasket *basket = new TBasket(name,fTree->GetName(),this);
fBaskets.Add(basket);
// Set the bit kAutoDelete to specify that when reading
// the object should be deleted before calling Streamer.
// It is foreseen to not set this bit in a future version.
//SetAutoDelete(kTRUE);
SetAutoDelete(kFALSE);
// create sub branches if requested by splitlevel
if (splitlevel > 0) {
// ===> Create a leafcount
TLeaf *leaf = new TLeafElement(name,fID, fStreamerType);
leaf->SetBranch(this);
fNleaves = 1;
fLeaves.Add(leaf);
fTree->GetListOfLeaves()->Add(leaf);
// Create a basket for the leafcount
TBasket *basket = new TBasket(name,fTree->GetName(),this);
fBaskets.Add(basket);
// ===> create sub branches for each data member of a TClonesArray
fType = 3;
TClass *clm = clones->GetClass();
if (!clm) return;
fClonesName = clm->GetName();
char branchname[kMaxLen];
sprintf(branchname,"%s_",name);
SetTitle(branchname);
leaf->SetName(branchname);
leaf->SetTitle(branchname);
Unroll(name,clm,clm,basketsize,splitlevel,31);
BuildTitle(name);
return;
}
SetBit(kBranchObject);
TLeaf *leaf = new TLeafElement(GetTitle(),fID, fStreamerType);
leaf->SetTitle(GetTitle());
leaf->SetBranch(this);
fNleaves = 1;
fLeaves.Add(leaf);
gTree->GetListOfLeaves()->Add(leaf);
}
//______________________________________________________________________________
TBranchElement::~TBranchElement()
{
//*-*-*-*-*-*Default destructor for a BranchElement*-*-*-*-*-*-*-*-*-*-*-*
//*-* =====================================
fBranches.Delete();
//SetAddress may have allocated an object. Must delete it
if (TestBit(kDeleteObject)) {
if (fObject) {
//TObject *obj = (TObject*)fObject;
// objects of fake classes allocated in SetAddress should be deleted
//printf("deleting fObject=%x of class: %s, branch: %s, fAddress=%xn",obj,fClassName.Data(),GetName(),fAddress);
//delete obj;
}
}
}
//______________________________________________________________________________
TBranch *TBranchElement::Branch(const char *subname, void *address, const char *leaflist,Int_t bufsize)
{
// Create a sub-branch of this branch (simple variable case)
// ==================================
//
// This Branch constructor is provided to support non-objects in
// a Tree. The variables described in leaflist may be simple variables
// or structures.
// See the two following constructors for writing objects in a Tree.
//
// By default the branch buffers are stored in the same file as the Tree.
// use TBranch::SetFile to specify a different file
gTree = fTree;
char *name = new char[1000];
sprintf(name,"%s.%s",GetName(),subname);
TBranch *branch = new TBranch(name,address,leaflist,bufsize);
if (branch->IsZombie()) {
delete branch;
delete [] name;
return 0;
}
TLeaf *leaf;
TIter next(branch->GetListOfLeaves());
while ((leaf = (TLeaf*)next())) {
sprintf(name,"%s.%s",GetName(),leaf->GetName());
leaf->SetName(name);
}
delete [] name;
fBranches.Add(branch);
return branch;
}
//______________________________________________________________________________
Int_t TBranchElement::Branch(const char *foldername, Int_t bufsize, Int_t splitlevel)
{
// This function creates one sub-branch for each element in the folder.
// The function returns the total number of branches created.
TObject *ob = gROOT->FindObjectAny(foldername);
if (!ob) return 0;
if (ob->IsA() != TFolder::Class()) return 0;
Int_t nbranches = GetListOfBranches()->GetEntries();
TFolder *folder = (TFolder*)ob;
TIter next(folder->GetListOfFolders());
TObject *obj;
char *curname = new char[1000];
char occur[20];
while ((obj=next())) {
sprintf(curname,"%s/%s",foldername,obj->GetName());
if (obj->IsA() == TFolder::Class()) {
Branch(curname, bufsize, splitlevel-1);
} else {
void *add = (void*)folder->GetListOfFolders()->GetObjectRef(obj);
for (Int_t i=0;i<1000;i++) {
if (curname[i] == 0) break;
if (curname[i] == '/') curname[i] = '.';
}
Int_t noccur = folder->Occurence(obj);
if (noccur > 0) {
sprintf(occur,"_%d",noccur);
strcat(curname,occur);
}
TBranchElement *br;
br = (TBranchElement*)Branch(curname,obj->ClassName(), add, bufsize, splitlevel-1);
br->SetBranchFolder();
}
}
delete [] curname;
return GetListOfBranches()->GetEntries() - nbranches;
}
//______________________________________________________________________________
TBranch *TBranchElement::Branch(const char *subname, const char *classname, void *add, Int_t bufsize, Int_t splitlevel)
{
// Create a sub-branch of this branch (with a class)
// ==================================
//
// Build a TBranchElement for an object of class classname.
// addobj is the address of a pointer to an object of class classname.
// The class dictionary must be available (ClassDef in class header).
//
// This option requires access to the library where the corresponding class
// is defined. Accessing one single data member in the object implies
// reading the full object.
//
// By default the branch buffers are stored in the same file as the parent branch.
// use TBranch::SetFile to specify a different file
//
// see IMPORTANT NOTE about branch names in TTree::Bronch
//
// Use splitlevel < 0 instead of splitlevel=0 when the class
// has a custom Streamer
gTree = fTree;
TClass *cl = gROOT->GetClass(classname);
if (!cl) {
Error("Branch","Cannot find class:%s",classname);
return 0;
}
//if splitlevel <= 0 and class has a custom Streamer, we must create
//a TBranchObject. We cannot assume that TClass::ReadBuffer is consistent
//with the custom Streamer. The penalty is that one cannot process
//this Tree without the class library containing the class.
//The following convention is used for the RootFlag
// #pragma link C++ class TExMap; rootflag = 0
// #pragma link C++ class TList-; rootflag = 1
// #pragma link C++ class TArray!; rootflag = 2
// #pragma link C++ class TArrayC-!; rootflag = 3
// #pragma link C++ class TBits+; rootflag = 4
// #pragma link C++ class Txxxx+!; rootflag = 6
char **ppointer = (char**)add;
char *objadd = *ppointer;
char *name = new char[1000];
sprintf(name,"%s.%s",GetName(),subname);
if (cl == TClonesArray::Class()) {
TClonesArray *clones = (TClonesArray *)objadd;
if (!clones) {
Error("Branch","Pointer to TClonesArray is null");
delete [] name;
return 0;
}
if (!clones->GetClass()) {
Error("Branch","TClonesArray with no class defined in branch: %s",name);
delete [] name;
return 0;
}
G__ClassInfo *classinfo = clones->GetClass()->GetClassInfo();
if (!classinfo) {
Error("Bronch","TClonesArray with no dictionary defined in branch: %s",name);
return 0;
}
if (splitlevel > 0) {
if (classinfo->RootFlag() & 1)
Warning("Branch","Using split mode on a class: %s with a custom Streamer",clones->GetClass()->GetName());
} else {
if (classinfo->RootFlag() & 1) clones->BypassStreamer(kFALSE);
TBranchObject *branch = new TBranchObject(name,classname,add,bufsize,0);
fBranches.Add(branch);
delete [] name;
return branch;
}
}
Bool_t hasCustomStreamer = kFALSE;
if (!cl->GetClassInfo()) {
Error("Branch","Cannot find dictionary for class: %s",classname);
return 0;
}
if (cl->GetClassInfo()->RootFlag() & 1) hasCustomStreamer = kTRUE;
if (splitlevel < 0 || (splitlevel == 0 && hasCustomStreamer)) {
TBranchObject *branch = new TBranchObject(name,classname,add,bufsize,0);
fBranches.Add(branch);
delete [] name;
return branch;
}
//hopefully normal case
Bool_t delobj = kFALSE;
//====> special case of TClonesArray
if(cl == TClonesArray::Class()) {
TBranchElement *branch = new TBranchElement(name,(TClonesArray*)objadd,bufsize,splitlevel);
fBranches.Add(branch);
branch->SetAddress(add);
delete [] name;
return branch;
}
//====>
if (!objadd) {
objadd = (char*)cl->New();
*ppointer = objadd;
delobj = kTRUE;
}
//build the StreamerInfo if first time for the class
Bool_t optim = TStreamerInfo::CanOptimize();
if (splitlevel > 0) TStreamerInfo::Optimize(kFALSE);
TStreamerInfo *sinfo = fTree->BuildStreamerInfo(cl,objadd);
TStreamerInfo::Optimize(optim);
// create a dummy top level branch object
Int_t id = -1;
if (splitlevel > 0) id = -2;
char *dot = (char*)strchr(name,'.');
Int_t nch = strlen(name);
Bool_t dotlast = kFALSE;
if (nch && name[nch-1] == '.') dotlast = kTRUE;
TBranchElement *branch = new TBranchElement(name,sinfo,id,objadd,bufsize,splitlevel);
fBranches.Add(branch);
if (splitlevel > 0) {
// Loop on all public data members of the class and its base classes
TObjArray *blist = branch->GetListOfBranches();
TIter next(sinfo->GetElements());
TStreamerElement *element;
id = 0;
char *bname = new char[1000];
while ((element = (TStreamerElement*)next())) {
char *pointer = (char*)objadd + element->GetOffset();
Bool_t isBase = element->IsA() == TStreamerBase::Class();
if (isBase) {
TClass *clbase = element->GetClassPointer();
if (clbase == TObject::Class() && cl->CanIgnoreTObjectStreamer()) continue;
}
if (dot) {
if (dotlast) {
sprintf(bname,"%s%s",name,element->GetFullName());
} else {
if (isBase) sprintf(bname,"%s",name);
else sprintf(bname,"%s.%s",name,element->GetFullName());
}
} else {
sprintf(bname,"%s",element->GetFullName());
}
TBranchElement *bre = new TBranchElement(bname,sinfo,id,pointer,bufsize,splitlevel-1);
blist->Add(bre);
id++;
}
delete [] bname;
}
delete [] name;
branch->SetAddress(add);
if (delobj) {delete objadd; *ppointer=0;}
return branch;
}
//______________________________________________________________________________
void TBranchElement::Browse(TBrowser *b)
{
Int_t nbranches = fBranches.GetEntriesFast();
if (nbranches > 0) {
fBranches.Browse(b);
} else {
// Get the name and strip any extra brackets
// in order to get the full arrays.
TString name = GetName();
Int_t pos = name.First('[');
if (pos!=kNPOS) name.Remove(pos);
TString mothername;
if (GetMother()) {
mothername = GetMother()->GetName();
pos = mothername.First('[');
if (pos!=kNPOS) mothername.Remove(pos);
Int_t len = mothername.Length();
if (len) {
if (mothername(len-1)!='.') {
// We do not know for sure whether the mother's name is
// already preprended. So we need to check:
// a) it is prepended
// b) it is NOT the name of a daugher (i.e. mothername.mothername exist)
TString doublename = mothername;
doublename.Append(".");
Int_t isthere = (name.Index(doublename)==0);
if (!isthere) {
name.Prepend(doublename);
} else {
if (GetMother()->FindBranch(mothername)) {
doublename.Append(mothername);
isthere = (name.Index(doublename)==0);
if (!isthere) {
mothername.Append(".");
name.Prepend(mothername);
}
} else {
// Nothing to do because the mother's name is
// already in the name.
}
}
} else {
// If the mother's name end with a dot then
// the daughter probably already contains the mother's name
if (name.Index(mothername)==kNPOS) {
name.Prepend(mothername);
}
}
}
}
GetTree()->Draw(name);
if (gPad) gPad->Update();
}
}
//______________________________________________________________________________
void TBranchElement::BuildTitle(const char *name)
{
//set branch/leaf name/title in case of a TClonesArray sub-branch
char branchname[kMaxLen];
Int_t nbranches = fBranches.GetEntries();
for (Int_t i=0;i<nbranches;i++) {
TBranchElement *bre = (TBranchElement*)fBranches.At(i);
bre->SetType(31);
bre->BuildTitle(name);
const char *fin = strrchr(bre->GetTitle(),'.');
if (fin == 0) continue;
bre->SetBranchCount(this); //primary branchcount
TLeafElement *lf = (TLeafElement*)bre->GetListOfLeaves()->At(0);
//if branch name is of the form fTracks.fCovar[3][4]
//set the title to fCovar[fTracks_]
strcpy(branchname,fin+1);
char *dim = (char*)strstr(branchname,"[");
Int_t nch = strlen(branchname);
if (dim) {
*dim = 0;
nch = dim-branchname;
}
sprintf(branchname+nch,"[%s_]",name);
bre->SetTitle(branchname);
if (lf) lf->SetTitle(branchname);
// is there a secondary branchcount ?
//fBranchCount2 points to the secondary branchcount
//in case a TClonesArray element has itself a branchcount.
//Example in Event class with TClonesArray fTracks of Track objects.
//if the Track object has two members
// Int_t fNpoint;
// Float_t *fPoints; //[fNpoint]
//In this case the TBranchElement fTracks.fPoints has
// -its primary branchcount pointing to the branch fTracks
// -its secondary branchcount pointing to fTracks.fNpoint
Int_t stype = bre->GetStreamerType();
if (stype > 40 && stype < 55) {
char name2[kMaxLen];
strcpy(name2,bre->GetName());
char *bn = strrchr(name2,'.');
if (!bn) continue;
TStreamerBasicPointer *el = (TStreamerBasicPointer*)bre->GetInfo()->GetElements()->FindObject(bn+1);
strcpy(bn+1,el->GetCountName());
TBranchElement *bc2 = (TBranchElement*)fBranches.FindObject(name2);
bre->SetBranchCount2(bc2);
//printf("Branch:%s has a secondary branchcount, bc2=%sn",bre->GetName(),bc2->GetName());
}
}
}
//______________________________________________________________________________
Int_t TBranchElement::Fill()
{
//*-*-*-*-*-*-*-*Loop on all leaves of this branch to fill Basket buffer*-*-*
//*-* =======================================================
Int_t nbytes = 0;
Int_t nbranches = fBranches.GetEntriesFast();
// update addresses if top level branch
if (fID < 0) {
if (!fAddress) {
Error("Fill","attempt to fill branch %s while addresss is not set",GetName());
return 0;
}
void *add1 = fObject;
void **add2 = (void**)fAddress;
if (add1 != *add2) {
SetAddress(fAddress);
}
}
if (nbranches) {
if (fType == 3) nbytes += TBranch::Fill(); //TClonesArray counter
else fEntries++;
for (Int_t i=0;i<nbranches;i++) {
TBranchElement *branch = (TBranchElement*)fBranches[i];
if (!branch->TestBit(kDoNotProcess)) nbytes += branch->Fill();
}
} else {
if (!TestBit(kDoNotProcess)) nbytes += TBranch::Fill();
}
if (fTree->Debug() > 0) {
Int_t entry = (Int_t)fEntries;
if (entry >= fTree->GetDebugMin() && entry <= fTree->GetDebugMax()) {
printf("Fill: %d, branch=%s, nbytes=%dn",entry,GetName(),nbytes);
}
}
return nbytes;
}
//______________________________________________________________________________
void TBranchElement::FillLeaves(TBuffer &b)
{
// Fill buffers of this branch
if (!fObject) return;
if (fType <= 2 && TestBit(kBranchObject)) b.MapObject((TObject*)fObject);
if (fType == 4) { // STL vector/list of objects
//printf ("STL split mode not yet implementedn");
} else if (fType == 41) { // sub branch of an STL class
//char **ppointer = (char**)fAddress;
} else if (fType == 3) { //top level branch of a TClonesArray
TClonesArray *clones = (TClonesArray*)fObject;
if (!clones) return;
Int_t n = clones->GetEntriesFast();
if (n > fMaximum) fMaximum = n;
b << n;
} else if (fType == 31) { // sub branch of a TClonesArray
TClonesArray *clones = (TClonesArray*)fObject;
if (!clones) return;
Int_t n = clones->GetEntriesFast();
fInfo->WriteBufferClones(b,clones,n,fID,fOffset);
} else if (fType <= 2) {
Int_t n = fInfo->WriteBuffer(b,fObject,fID);
if (fStreamerType == 6) {
if (n > fMaximum) fMaximum = n;
}
}
}
//______________________________________________________________________________
Int_t TBranchElement::GetEntry(Int_t entry, Int_t getall)
{
//*-*-*-*-*Read all branches of a BranchElement and return total number of bytes
//*-* ====================================================================
// If entry = 0 take current entry number + 1
// If entry < 0 reset entry number to 0
//
// The function returns the number of bytes read from the input buffer.
// If entry does not exist the function returns 0.
// If an I/O error occurs, the function returns -1.
//
// See IMPORTANT REMARKS in TTree::GetEntry
Int_t nbranches = fBranches.GetEntriesFast();
Int_t nbytes = 0;
// if branch address is not yet set, must set all addresses starting
// with the top level parent branch
if (fAddress == 0 && fTree->GetMakeClass() == 0) {
TBranchElement *mother = GetMother();
TClass *cl = gROOT->GetClass(mother->GetClassName());
if (fInfo && fInfo->GetOffsets()) fInfo->BuildOld();
if (!mother || !cl) return 0;
if (!mother->GetAddress()) mother->SetAddress(0);
}
if (nbranches) {
//branch has daughters
//one must always read the branch counter.
//In the case when one reads consecutively twice the same entry,
//the user may have cleared the TClonesArray between the 2 GetEntry
if (fType == 3) nbytes += TBranch::GetEntry(entry, getall);
Int_t nb;
for (Int_t i=0;i<nbranches;i++) {
TBranch *branch = (TBranch*)fBranches[i];
nb = branch->GetEntry(entry, getall);
if (nb < 0) return nb;
nbytes += nb;
}
} else {
//terminal branch
if (fBranchCount && fBranchCount->GetReadEntry() != entry) nbytes += fBranchCount->TBranch::GetEntry(entry,getall);
nbytes += TBranch::GetEntry(entry, getall);
}
if (fTree->Debug() > 0) {
if (entry >= fTree->GetDebugMin() && entry <= fTree->GetDebugMax()) {
printf("GetEntry: %d, branch=%s, nbytes=%dn",entry,GetName(),nbytes);
}
}
return nbytes;
}
//______________________________________________________________________________
TStreamerInfo *TBranchElement::GetInfo()
{
//return pointer to TStreamerinfo object for the class of this branch
//rebuild the info if not yet done
Bool_t optim = TStreamerInfo::CanOptimize();
if (fInfo) {
if (!fInfo->GetOffsets()) {
TStreamerInfo::Optimize(kFALSE);
fInfo->Compile();
TStreamerInfo::Optimize(optim);
}
return fInfo;
}
TClass *cl = gROOT->GetClass(fClassName.Data());
if (cl) {
TStreamerInfo::Optimize(kFALSE);
if (cl == TClonesArray::Class()) fClassVersion = TClonesArray::Class()->GetClassVersion();
fInfo = cl->GetStreamerInfo(fClassVersion);
if (fInfo && !fInfo->GetOffsets()) {
fInfo->Compile();
}
TStreamerInfo::Optimize(optim);
}
return fInfo;
}
//______________________________________________________________________________
Int_t TBranchElement::GetMaximum() const
{
// Return maximum count value of the branchcount if any
if (fBranchCount) return fBranchCount->GetMaximum();
return fMaximum;
}
//______________________________________________________________________________
TBranchElement *TBranchElement::GetMother() const
{
// Get top level branch parent of this branch
// A top level branch has its fID negative.
TIter next(fTree->GetListOfBranches());
TBranch *branch;
TBranchElement *bre, *br;
while ((branch=(TBranch*)next())) {
if (branch->IsA() != TBranchElement::Class()) continue;
bre = (TBranchElement*)branch;
br = bre->GetSubBranch(this);
if (br) return bre;
}
return 0;
}
//______________________________________________________________________________
TBranchElement *TBranchElement::GetSubBranch(const TBranchElement *br) const
{
// recursively find branch br in the list of branches of this branch.
// return null if br is not in this branch hierarchy.
if (br == this) return (TBranchElement*)this;
TIter next(((TBranchElement*)this)->GetListOfBranches());
TBranchElement *branch, *br2;
while ((branch = (TBranchElement*)next())) {
br2 = branch->GetSubBranch(br);
if (br2) return br2;
}
return 0;
}
//______________________________________________________________________________
const char *TBranchElement::GetTypeName() const
{
// return type name of element in the branch
if (fType == 3) {
return "Int_t";
}
if (fStreamerType <=0 || fStreamerType >= 60) return fClassName.Data();
const char *types[16] = {"","Char_t","Short_t","Int_t","Long_t","Float_t",
"Int_t","","Double_t","","","UChar_t","UShort_t","UInt_t","ULong_t","UInt_t"};
Int_t itype = fStreamerType%20;
return types[itype];
}
//______________________________________________________________________________
Double_t TBranchElement::GetValue(Int_t j, Int_t len, Bool_t subarr) const
{
// Returns branch value. If the leaf is an array, j is the index in the array
// If leaf is an array inside a TClonesArray, len should be the length of the
// array. If subarr is true, then len is actually the index within the sub-array
if (j == 0 && fBranchCount) {
Int_t entry = fTree->GetReadEntry();
fBranchCount->TBranch::GetEntry(entry);
if (fBranchCount2) fBranchCount2->TBranch::GetEntry(entry);
}
if (fTree->GetMakeClass()) {
if (!fAddress) return 0;
if (fType == 3) { //top level branch of a TClonesArray
return (Double_t)fNdata;
} else if (fType == 31) { // sub branch of a TClonesArray
Int_t atype = fStreamerType;
if (atype < 20) atype += 20;
return fInfo->GetValue(fAddress,atype,j,1);
} else if (fType <= 2) { // branch in split mode
if (fStreamerType > 40 && fStreamerType < 55) {
Int_t atype = fStreamerType - 20;
return fInfo->GetValue(fAddress,atype,j,1);
} else {
return fInfo->GetValue(fObject,fID,j,-1);
}
}
}
if (fType == 31) {
TClonesArray *clones = (TClonesArray*)fObject;
if (subarr) return fInfo->GetValueClones(clones,fID, j, len,fOffset);
else return fInfo->GetValueClones(clones,fID, j/len, j%len,fOffset);
} else {
return fInfo->GetValue(fObject,fID,j,-1);
}
}
//______________________________________________________________________________
void *TBranchElement::GetValuePointer() const
{
// Returns pointer to first data element of this branch
// Currently used only for members of type character
if (fBranchCount) {
Int_t entry = fTree->GetReadEntry();
fBranchCount->TBranch::GetEntry(entry);
if (fBranchCount2) fBranchCount2->TBranch::GetEntry(entry);
}
if (fTree->GetMakeClass()) {
if (!fAddress) return 0;
if (fType == 3) { //top level branch of a TClonesArray
//return &fNdata;
return 0;
} else if (fType == 31) { // sub branch of a TClonesArray
//Int_t atype = fStreamerType;
//if (atype < 20) atype += 20;
//return fInfo->GetValue(fAddress,atype,j,1);
return 0;
} else if (fType <= 2) { // branch in split mode
if (fStreamerType > 40 && fStreamerType < 55) {
//Int_t atype = fStreamerType - 20;
//return fInfo->GetValue(fAddress,atype,j,1);
return 0;
} else {
//return fInfo->GetValue(fObject,fID,j,-1);
return 0;
}
}
}
if (fType == 31) {
//TClonesArray *clones = (TClonesArray*)fObject;
//if (subarr) return fInfo->GetValueClones(clones,fID, j, len,fOffset);
//else return fInfo->GetValueClones(clones,fID, j/len, j%len,fOffset);
return 0;
} else {
//return fInfo->GetValue(fObject,fID,j,-1);
if (!fInfo) return 0;
char **val = (char**)(fObject+fInfo->GetOffsets()[fID]);
return *val;
}
}
//______________________________________________________________________________
Bool_t TBranchElement::IsFolder() const
{
//*-*-*-*-*Return TRUE if more than one leaf, FALSE otherwise*-*
//*-* ==================================================
Int_t nbranches = fBranches.GetEntriesFast();
if (nbranches >= 1) return kTRUE;
else return kFALSE;
}
//______________________________________________________________________________
void TBranchElement::Print(Option_t *option) const
{
//*-*-*-*-*-*-*-*-*-*-*-*Print TBranch parameters*-*-*-*-*-*-*-*-*-*-*-*-*-*-*
//*-* ========================
Int_t nbranches = fBranches.GetEntriesFast();
if (nbranches) {
if (fID == -2) {
if (strcmp(GetName(),GetTitle()) == 0) {
Printf("*Branch :%-66s *",GetName());
} else {
Printf("*Branch :%-9s : %-54s *",GetName(),GetTitle());
}
Printf("*Entries : %8d : BranchElement (see below) *",Int_t(fEntries));
Printf("*............................................................................*");
}
if (fType >= 2) {
TBranch::Print(option);
}
for (Int_t i=0;i<nbranches;i++) {
TBranch *branch = (TBranch*)fBranches.At(i);
branch->Print(option);
}
} else {
TBranch::Print(option);
}
}
//______________________________________________________________________________
void TBranchElement::PrintValue(Int_t len) const
{
// Prints leaf value
if (fTree->GetMakeClass()) {
if (!fAddress) return;
if (fType == 3) { //top level branch of a TClonesArray
printf(" %-15s = %dn",GetName(),fNdata);
return;
} else if (fType == 31) { // sub branch of a TClonesArray
Int_t n = TMath::Min(10,fNdata);
Int_t atype = fStreamerType+20;
if (atype > 54) {
//more logic required here (like in ReadLeaves)
printf(" %-15s = %dn",GetName(),fNdata);
return;
}
if (fStreamerType > 20) {
atype -= 20;
TLeafElement *leaf = (TLeafElement*)fLeaves.UncheckedAt(0);
n *= leaf->GetLenStatic();
}
fInfo->PrintValue(GetName(),fAddress,atype,n);
return;
} else if (fType <= 2) { // branch in split mode
if (fStreamerType > 40 && fStreamerType < 55) {
Int_t atype = fStreamerType - 20;
Int_t n = (Int_t)((TBranchElement*)fBranchCount)->GetValue(0,0);
fInfo->PrintValue(GetName(),fAddress,atype,n);
} else {
fInfo->PrintValue(GetName(),fObject,fID,-1);
}
return;
}
return;
}
if (fType == 3) {
printf(" %-15s = %dn",GetName(),fNdata);
} else if (fType == 31) {
TClonesArray *clones = (TClonesArray*)fObject;
fInfo->PrintValueClones(GetName(),clones,fID,fOffset);
} else {
fInfo->PrintValue(GetName(),fObject,fID,-1);
}
}
//______________________________________________________________________________
void TBranchElement::ReadLeaves(TBuffer &b)
{
// Read buffers for this branch
if (fTree->GetMakeClass()) {
if (fType == 3) { //top level branch of a TClonesArray
Int_t *n = (Int_t*)fAddress;
b >> n[0];
fNdata = n[0];
return;
} else if (fType == 31) { // sub branch of a TClonesArray
fNdata = fBranchCount->GetNdata();
Int_t atype = fStreamerType;
if (atype > 54) return;
if (!fAddress) return;
Int_t n = fNdata;
if (atype>40) {
atype -= 40;
if (!fBranchCount2) return;
const char *len_where = (char*)fBranchCount2->fAddress;
if (!len_where) return;
Int_t len_atype = fBranchCount2->fStreamerType;
Int_t length;
Int_t k;
Char_t isArray;
for( k=0; k<n; k++) {
char **where = &(((char**)fAddress)[k]);
delete [] *where;
*where = 0;
switch(len_atype) {
case 1: {length = ((Char_t*)len_where)[k]; break;}
case 2: {length = ((Short_t*) len_where)[k]; break;}
case 3: {length = ((Int_t*) len_where)[k]; break;}
case 4: {length = ((Long_t*) len_where)[k]; break;}
//case 5: {length = ((Float_t*) len_where)[k]; break;}
case 6: {length = ((Int_t*) len_where)[k]; break;}
//case 8: {length = ((Double_t*)len_where)[k]; break;}
case 11: {length = ((UChar_t*) len_where)[k]; break;}
case 12: {length = ((UShort_t*)len_where)[k]; break;}
case 13: {length = ((UInt_t*) len_where)[k]; break;}
case 14: {length = ((ULong_t*) len_where)[k]; break;}
default: continue;
}
b >> isArray;
if (length <= 0) continue;
if (isArray == 0) continue;
switch (atype) {
case 1: {*where=new char[sizeof(Char_t)*length]; b.ReadFastArray((Char_t*) *where, length); break;}
case 2: {*where=new char[sizeof(Short_t)*length]; b.ReadFastArray((Short_t*) *where, length); break;}
case 3: {*where=new char[sizeof(Int_t)*length]; b.ReadFastArray((Int_t*) *where, length); break;}
case 4: {*where=new char[sizeof(Long_t)*length]; b.ReadFastArray((Long_t*) *where, length); break;}
case 5: {*where=new char[sizeof(Float_t)*length]; b.ReadFastArray((Float_t*) *where, length); break;}
case 6: {*where=new char[sizeof(Int_t)*length]; b.ReadFastArray((Int_t*) *where, length); break;}
case 8: {*where=new char[sizeof(Double_t)*length]; b.ReadFastArray((Double_t*)*where, length); break;}
case 11: {*where=new char[sizeof(UChar_t)*length]; b.ReadFastArray((UChar_t*) *where, length); break;}
case 12: {*where=new char[sizeof(UShort_t)*length]; b.ReadFastArray((UShort_t*)*where, length); break;}
case 13: {*where=new char[sizeof(UInt_t)*length]; b.ReadFastArray((UInt_t*) *where, length); break;}
case 14: {*where=new char[sizeof(ULong_t)*length]; b.ReadFastArray((ULong_t*) *where, length); break;}
case 15: {*where=new char[sizeof(UInt_t)*length]; b.ReadFastArray((UInt_t*) *where, length); break;}
}
}
return;
}
if (atype > 20) {
atype -= 20;
TLeafElement *leaf = (TLeafElement*)fLeaves.UncheckedAt(0);
n *= leaf->GetLenStatic();
}
switch (atype) {
case 1: {b.ReadFastArray((Char_t*) fAddress, n); break;}
case 2: {b.ReadFastArray((Short_t*) fAddress, n); break;}
case 3: {b.ReadFastArray((Int_t*) fAddress, n); break;}
case 4: {b.ReadFastArray((Long_t*) fAddress, n); break;}
case 5: {b.ReadFastArray((Float_t*) fAddress, n); break;}
case 6: {b.ReadFastArray((Int_t*) fAddress, n); break;}
case 8: {b.ReadFastArray((Double_t*)fAddress, n); break;}
case 11: {b.ReadFastArray((UChar_t*) fAddress, n); break;}
case 12: {b.ReadFastArray((UShort_t*)fAddress, n); break;}
case 13: {b.ReadFastArray((UInt_t*) fAddress, n); break;}
case 14: {b.ReadFastArray((ULong_t*) fAddress, n); break;}
case 15: {b.ReadFastArray((UInt_t*) fAddress, n); break;}
}
return;
} else if (fType <= 2) { // branch in split mode
if (fStreamerType > 40 && fStreamerType < 55) {
Int_t atype = fStreamerType - 40;
Int_t n = (Int_t)fBranchCount->GetValue(0,0);
fNdata = n;
Char_t isArray;
b >> isArray;
switch (atype) {
case 1: {b.ReadFastArray((Char_t*) fAddress, n); break;}
case 2: {b.ReadFastArray((Short_t*) fAddress, n); break;}
case 3: {b.ReadFastArray((Int_t*) fAddress, n); break;}
case 4: {b.ReadFastArray((Long_t*) fAddress, n); break;}
case 5: {b.ReadFastArray((Float_t*) fAddress, n); break;}
case 6: {b.ReadFastArray((Int_t*) fAddress, n); break;}
case 8: {b.ReadFastArray((Double_t*)fAddress, n); break;}
case 11: {b.ReadFastArray((UChar_t*) fAddress, n); break;}
case 12: {b.ReadFastArray((UShort_t*)fAddress, n); break;}
case 13: {b.ReadFastArray((UInt_t*) fAddress, n); break;}
case 14: {b.ReadFastArray((ULong_t*) fAddress, n); break;}
case 15: {b.ReadFastArray((UInt_t*) fAddress, n); break;}
}
} else {
fNdata = 1;
if (fAddress) {
fInfo->ReadBuffer(b,fObject,fID);
} else {
fNdata = 0;
}
}
return;
}
}
if (fType <=2 && TestBit(kBranchObject)) {
b.MapObject((TObject*)fObject);
}
if (fType == 4) { // STL vector/list of objects
//printf ("STL split mode not yet implementedn");
} else if (fType == 41) { // sub branch of an STL class
//char **ppointer = (char**)fAddress;
} else if (fType == 3) { //top level branch of a TClonesArray
Int_t n;
b >> n;
fNdata = n;
TClonesArray *clones = (TClonesArray*)fObject;
if (!clones) return;
clones->Clear();
clones->ExpandCreateFast(fNdata);
} else if (fType == 31) { // sub branch of a TClonesArray
fNdata = fBranchCount->GetNdata();
TClonesArray *clones = (TClonesArray*)fObject;
if (!clones) return;
fInfo->ReadBufferClones(b,clones,fNdata,fID,fOffset);
} else if (fType <= 2) { // branch in split mode
if (fBranchCount) fNdata = (Int_t)fBranchCount->GetValue(0,0);
else fNdata = 1;
fInfo->ReadBuffer(b,fObject,fID);
if (fStreamerType == 6) fNdata = (Int_t)GetValue(0,0);
}
}
//______________________________________________________________________________
void TBranchElement::Reset(Option_t *option)
{
//*-*-*-*-*-*-*-*Reset a Branch*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*
//*-* ====================
//
// Existing buffers are deleted
// Entries, max and min are reset
//
TBranch::Reset(option);
fInfo = gROOT->GetClass(fClassName.Data())->GetStreamerInfo(fClassVersion);
Int_t nbranches = fBranches.GetEntriesFast();
for (Int_t i=0;i<nbranches;i++) {
TBranch *branch = (TBranch*)fBranches[i];
branch->Reset(option);
}
}
//______________________________________________________________________________
void TBranchElement::SetAddress(void *add)
{
//*-*-*-*-*-*-*-*Set address of this branch*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*
//*-* ====================
//
if (TestBit(kDoNotProcess)) return;
//special case when called from code generated by TTree::MakeClass
if (Long_t(add) == -1) {
SetBit(kWarn);
fAddress = (char*)add;
return;
}
fReadEntry = -1;
//build the StreamerInfo if first time for the class
TClass *cl = gROOT->GetClass(fClassName.Data());
if (!fInfo ) GetInfo();
Int_t nbranches = fBranches.GetEntriesFast();
if (gDebug > 0) {
printf("SetAddress, branch:%s, classname=%s, parent=%s, fID=%d, fType=%d, nbranches=%d, add=%lx, fInfo=%s, version=%dn",GetName(),fClassName.Data(),fParentName.Data(),fID,fType,nbranches,(Long_t)add,fInfo->GetName(),fClassVersion);
}
fAddress = (char*)add;
if (fTree->GetMakeClass()) {
if (fID >= 0) {
fObject = fAddress - fInfo->GetOffsets()[fID];
return;
}
}
if (fID < 0) {
if (fAddress) {
char **ppointer = (char**)fAddress;
fObject = *ppointer;
if (!fObject && cl) {
//Remember if we build an object of a fake class
if (!cl->GetClassInfo()) SetBit(kDeleteObject);
fObject = (char*)cl->New();
*ppointer = fObject;
}
} else {
//Remember if we build an object of a fake class
if (!cl->GetClassInfo()) SetBit(kDeleteObject);
fObject = (char*)cl->New();
}
if (!fAddress) fAddress = (char*)&fObject;
} else {
fObject = fAddress;
}
//special case for a TClonesArray when address is not yet set
//we must create the clonesarray first
if (fType ==3) {
if (fAddress) {
if (fStreamerType==61) {
// Case of an embedded ClonesArray
fObject = fAddress;
} else {
TClonesArray **ppointer;
ppointer = (TClonesArray**)fAddress;
fObject = (char*)*ppointer;
}
if (!fObject) fAddress = 0;
}
TClass *clm = gROOT->GetClass(fClonesName.Data());
if (clm) {
clm->BuildRealData(); //just in case clm derives from an abstract class
clm->GetStreamerInfo();
}
if (!fAddress) {
//SetBit(kDeleteObject);
fObject = (char*)new TClonesArray(fClonesName.Data());
fAddress = (char*)&fObject;
}
}
if (fType == 31) {
if (fClassName != fParentName) {
TClass *clparent = gROOT->GetClass(GetParentName());
Int_t mOffset = 0;
Int_t baseOffset = 0;
TClass *clm = gROOT->GetClass(GetClassName());
TStreamerInfo *binfo = clparent->GetStreamerInfo();
if (clparent != clm) {
char pname[kMaxLen];
strcpy(pname,GetName());
char *clast = (char*)strrchr(pname,'.');
if (clast) {
*clast = 0;
char *clast2 = (char*)strrchr(pname,'.');
if (clast2) {
binfo->GetStreamerElement(clast2+1,mOffset);
*clast2 = 0;
char *clast3 = (char*)strrchr(pname,'.');
if (clast3) {
TStreamerElement *el3 = binfo->GetStreamerElement(clast3+1,mOffset);
if (el3) {
Int_t mOffset2 = 0;
el3->GetClassPointer()->GetStreamerInfo()->GetStreamerElement(clast2+1,mOffset2);
mOffset += mOffset2;
}
}
}
if (!clparent->GetBaseClass(clm)) fOffset = mOffset;
if (!mOffset) {
if (clparent->GetBaseClass(clm)) {
baseOffset = clparent->GetBaseClassOffset(clm);
if (baseOffset < 0) baseOffset = 0;
fOffset = baseOffset;
}
}
}
}
}
}
if (nbranches == 0) return;
for (Int_t i=0;i<nbranches;i++) {
TBranch *abranch = (TBranch*)fBranches[i];
//just in case a TBranch had been added to a TBranchElement!
if (!abranch->InheritsFrom(TBranchElement::Class())) {
abranch->SetAddress(fObject);
continue;
}
TBranchElement *branch = (TBranchElement*)abranch;
Int_t nb2 = branch->GetListOfBranches()->GetEntries();
Int_t id = branch->GetID();
Int_t mOffset = 0;
Int_t baseOffset = 0;
Int_t memberOffset = 0;
TClass *clparent = gROOT->GetClass(branch->GetParentName());
if (!clparent) clparent = cl;
TClass *clm = gROOT->GetClass(branch->GetClassName());
TStreamerInfo *binfo = clparent->GetStreamerInfo();
//if sub-branch is a class deriving from the class of this branch
//or a member of the class, one must add the base class offset
//printf("i=%d, clm=%s,clparent=%s, branch=%s, fType=%d, binfo=%sn",i,clm->GetName(),clparent->GetName(),branch->GetName(),fType,binfo->GetName());
if (clparent != clm) {
char pname[kMaxLen];
strcpy(pname,branch->GetName());
char *clast = (char*)strrchr(pname,'.');
if (clast) {
*clast = 0;
char *clast2 = (char*)strrchr(pname,'.');
if (clast2) binfo->GetStreamerElement(clast2+1,mOffset);
if (fType == 2 && !clparent->GetBaseClass(clm)) memberOffset = mOffset;
if (fType == 1) {
binfo->GetStreamerElement(pname,memberOffset);
}
if (!branch->GetType() && !mOffset) {
if (clparent->GetBaseClass(clm)) {
baseOffset = clparent->GetBaseClassOffset(clm);
if (baseOffset < 0) baseOffset = 0;
}
}
}
}
if (nb2 > 0) {
TStreamerInfo *info = branch->GetInfo();
if (info) {
Int_t *leafOffsets = info->GetOffsets();
if (leafOffsets) {
branch->SetAddress(fObject + leafOffsets[id] + baseOffset);
} else {
Error("SetAddress","info=%s, leafOffsets=0",info->GetName());
}
} else {
Error("SetAddress","branch=%s, info=0",branch->GetName());
}
} else {
branch->SetAddress(fObject + baseOffset +memberOffset);
}
}
}
//______________________________________________________________________________
void TBranchElement::SetAutoDelete(Bool_t autodel)
{
//*-*-*-*-*-*-*-*Set the AutoDelete bit
//*-* ====================
// This function can be used to instruct Root in TBranchElement::ReadBasket
// to not delete the object referenced by a branchelement before reading a
// new entry. By default, the object is deleted.
// If autodel is kTRUE, this existing object will be deleted, a new object
// created by the default constructor, then object->Streamer called.
// If autodel is kFALSE, the existing object is not deleted. Root assumes
// that the user is taking care of deleting any internal object or array
// This can be done in Streamer itself.
// If this branch has sub-branches, the function sets autodel for these
// branches as well.
// We STRONGLY suggest to activate this option by default when you create
// the top level branch. This will make the read phase more efficient
// because it minimizes the numbers of new/delete operations.
// Once this option has been set and the Tree is written to a file, it is
// not necessary to specify the option again when reading, unless you
// want to set the opposite mode.
//
TBranch::SetAutoDelete(autodel);
}
//______________________________________________________________________________
void TBranchElement::SetBasketSize(Int_t buffsize)
{
// Reset basket size for all subbranches of this branchelement
TBranch::SetBasketSize(buffsize);
Int_t nbranches = fBranches.GetEntriesFast();
for (Int_t i=0;i<nbranches;i++) {
TBranch *branch = (TBranch*)fBranches[i];
branch->SetBasketSize(fBasketSize);
}
}
//______________________________________________________________________________
void TBranchElement::SetBranchCount(TBranchElement *bre)
{
// Set the branch count for this branch
fBranchCount = bre;
TLeafElement *lfc = (TLeafElement *)bre->GetListOfLeaves()->At(0);
TLeafElement *leaf = (TLeafElement *)GetListOfLeaves()->At(0);
if (lfc && leaf) leaf->SetLeafCount(lfc);
}
//______________________________________________________________________________
Int_t TBranchElement::Unroll(const char *name, TClass *cltop, TClass *cl,Int_t basketsize, Int_t splitlevel, Int_t btype)
{
// unroll base classes and loop on all elements of class cl
if (cl == TObject::Class() && cltop->CanIgnoreTObjectStreamer()) return 0;
Bool_t optim = TStreamerInfo::CanOptimize();
if (splitlevel > 0) TStreamerInfo::Optimize(kFALSE);
TStreamerInfo *info = fTree->BuildStreamerInfo(cl);
TStreamerInfo::Optimize(optim);
if (!info) return 0;
TClass *clbase;
Int_t ndata = info->GetNdata();
ULong_t *elems = info->GetElems();
TStreamerElement *elem;
TBranchElement *branch;
char branchname[kMaxLen];
Int_t jd = 0;
Int_t unroll = 0;
for (Int_t i=0;i<ndata;i++) {
elem = (TStreamerElement*)elems[i];
if (gDebug > 1) printf("Unroll name=%s, cltop=%s, cl=%s, i=%d, elem=%s, splitlevel=%d, btype=%d n",name,cltop->GetName(),cl->GetName(),i,elem->GetName(),splitlevel,btype);
if (elem->IsA() == TStreamerBase::Class()) {
clbase = gROOT->GetClass(elem->GetName());
//here one should consider the case of a TClonesArray with a class
//deriving from an abstract class
//if ((cltop != cl) && (clbase->Property() & kIsAbstract)) return -1;
//if (clbase->Property() & kIsAbstract) return -1;
if (clbase->Property() & kIsAbstract) {
if (cl->InheritsFrom("TCollection")) unroll = -1;
}
if (gDebug > 1) printf("Unrolling base class, cltop=%s, clbase=%sn",cltop->GetName(),clbase->GetName());
if (unroll < 0 && btype != 31) return -1;
else unroll = Unroll(name,cltop,clbase,basketsize,splitlevel-1,btype);
if (unroll < 0) {
if (strlen(name)) sprintf(branchname,"%s.%s",name,elem->GetFullName());
else sprintf(branchname,"%s",elem->GetFullName());
branch = new TBranchElement(branchname,info,jd,0,basketsize,0,btype);
branch->SetParentName(cltop->GetName());
fBranches.Add(branch);
}
} else {
if (strlen(name)) sprintf(branchname,"%s.%s",name,elem->GetFullName());
else sprintf(branchname,"%s",elem->GetFullName());
if (splitlevel > 1 &&
(elem->IsA() == TStreamerObject::Class()
|| elem->IsA() == TStreamerObjectAny::Class())) {
clbase = gROOT->GetClass(elem->GetTypeName());
if (clbase->Property() & kIsAbstract) return -1;
if (gDebug > 1) printf("Unrolling object class, cltop=%s, clbase=%sn",cltop->GetName(),clbase->GetName());
if (elem->CannotSplit()) unroll = -1;
else unroll = Unroll(branchname,cltop,clbase,basketsize,splitlevel-1,btype);
if (unroll < 0) {
branch = new TBranchElement(branchname,info,jd,0,basketsize,0,btype);
branch->SetParentName(cltop->GetName());
fBranches.Add(branch);
}
} else {
if (elem->GetClassPointer() == TClonesArray::Class()) {
//process case of a TClonesArray in a derived class (do not split)
char *pointer = fBranchPointer + elem->GetOffset();
//branch = new TBranchElement(branchname,info,jd,pointer,basketsize,splitlevel-1,btype);
branch = new TBranchElement(branchname,info,jd,pointer,basketsize,0,btype);
} else {
branch = new TBranchElement(branchname,info,jd,0,basketsize,0,btype);
branch->SetType(btype);
}
branch->SetParentName(cltop->GetName());
fBranches.Add(branch);
}
}
jd++;
}
return 1;
}
ROOT page - Class index - Top of the page
This page has been automatically generated. If you have any comments or suggestions about the page layout send a mail to ROOT support, or contact the developers with any questions or problems regarding ROOT.