Revision 53f8cb8b1ebe594bbc6ac79da72a76872d63f505 authored by Unknown Author on 17 December 2004, 13:45:05 UTC, committed by Unknown Author on 17 December 2004, 13:45:05 UTC
git-svn-id: http://root.cern.ch/svn/root/tags/v4-02-00@10827 27541ba8-7e3a-0410-8455-c3a389f83636
1 parent 8d3a295
TStreamerInfo.h
// @(#)root/meta:$Name: $:$Id: TStreamerInfo.h,v 1.58 2004/10/19 11:00:09 brun Exp $
// Author: Rene Brun 12/10/2000
/*************************************************************************
* 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_TStreamerInfo
#define ROOT_TStreamerInfo
//////////////////////////////////////////////////////////////////////////
// //
// TStreamerInfo //
// //
// Describe Streamer information for one class version //
// //
//////////////////////////////////////////////////////////////////////////
#ifndef ROOT_TFile
#include "TFile.h"
#endif
#ifndef ROOT_TClonesArray
#include "TClonesArray.h"
#endif
#ifndef ROOT_TROOT
#include "TROOT.h"
#endif
#if (defined(_MSC_VER) && (_MSC_VER < 1300)) || defined(R__ALPHA) || \
(defined(R__MACOSX) && defined(R__GNU) && __GNUC__==3 && __GNUC_MINOR<=3) || \
(defined(R__MACOSX) && defined(__xlC__))
#define R__BROKEN_FUNCTION_TEMPLATES
#endif
class TClass;
class TDataMember;
class TMemberStreamer;
class TStreamerElement;
class TStreamerBasicType;
class TVirtualCollectionProxy;
class TStreamerInfo : public TNamed {
private:
#ifdef R__BROKEN_FUNCTION_TEMPLATES
public:
#endif
class CompInfo {
// Class used to cache information (see fComp)
public:
TClass *fClass;
TString fClassName;
TMemberStreamer *fStreamer;
CompInfo() : fClass(0), fClassName(""), fStreamer(0) {};
~CompInfo() {};
void Update(const TClass *oldcl, TClass *newcl) {
if (fClass==oldcl) fClass=newcl;
else if (fClass==0) fClass =gROOT->GetClass(fClassName);
}
};
private:
UInt_t fCheckSum; //checksum of original class
Int_t fClassVersion; //Class version identifier
Int_t fNumber; //!Unique identifier
Int_t fNdata; //!number of optmized types
Int_t fSize; //!size of the persistent class
Int_t *fType; //![fNdata]
Int_t *fNewType; //![fNdata]
Int_t *fOffset; //![fNdata]
Int_t *fLength; //![fNdata]
ULong_t *fElem; //![fNdata]
ULong_t *fMethod; //![fNdata]
CompInfo *fComp; //![fNdata] additional info
Bool_t fOptimized; //! true if has been optimized
TClass *fClass; //!pointer to class
TObjArray *fElements; //Array of TStreamerElements
Version_t fOldVersion; //! Version of the TStreamerInfo object read from the file
Bool_t fIsBuilt; //! true if the TStreamerInfo has been 'built'
static Int_t fgCount; //Number of TStreamerInfo instances
static Bool_t fgCanDelete; //True if ReadBuffer can delete object
static Bool_t fgOptimize; //True if optimization on
static Bool_t fgStreamMemberWise; //True if the collections are to be stream "member-wise" (when possible).
static TStreamerElement *fgElement; //Pointer to current TStreamerElement
void BuildUserInfo(const char *info);
static Double_t GetValueAux(Int_t type, void *ladd, int k, Int_t len);
static void PrintValueAux(char *ladd, Int_t atype, TStreamerElement * aElement, Int_t aleng, Int_t *count);
public:
//status bits
enum { kCannotOptimize = BIT(12),kRecovered=BIT(13)};
enum EReadWrite {
kBase = 0, kOffsetL = 20, kOffsetP = 40, kCounter = 6, kCharStar = 7,
kChar = 1, kShort = 2, kInt = 3, kLong = 4, kFloat = 5,
kDouble = 8, kDouble32= 9,
kUChar = 11, kUShort = 12, kUInt = 13, kULong = 14, kBits = 15,
kLong64 = 16, kULong64 = 17,
kObject = 61, kAny = 62, kObjectp = 63, kObjectP = 64, kTString = 65,
kTObject = 66, kTNamed = 67, kAnyp = 68, kAnyP = 69, kAnyPnoVT = 70,
kSTLp = 71,
kSkip = 100, kSkipL = 120, kSkipP = 140,
kConv = 200, kConvL = 220, kConvP = 240,
kSTL = 300, kSTLstring = 365,
kStreamer = 500, kStreamLoop = 501,
kMissing = 99999
};
// Some comments about EReadWrite
// kBase : base class element
// kOffsetL : fixed size array
// kOffsetP : pointer to object
// kCounter : counter for array size
// kCharStar: pointer to array of char
// kBits : TObject::fBits in case of a referenced object
// kObject : Class derived from TObject
// kObjectp : Class* derived from TObject and with comment field //->Class
// kObjectP : Class* derived from TObject and with NO comment field //->Class
// kAny : Class not derived from TObject
// kAnyp : Class* not derived from TObject with comment field //->Class
// kAnyP : Class* not derived from TObject with NO comment field //->Class
// kAnyPnoVT: Class* not derived from TObject with NO comment field //->Class and Class has NO virtual table
// kSTLp : Pointer to STL container.
// kTString : TString, special case
// kTObject : TObject, special case
// kTNamed : TNamed , special case
TStreamerInfo();
TStreamerInfo(TClass *cl, const char *info);
virtual ~TStreamerInfo();
void Build();
void BuildCheck();
void BuildEmulated(TFile *file);
void BuildOld();
void Compile();
void ComputeSize();
void ForceWriteInfo(TFile *file, Bool_t force=kFALSE);
Int_t GenerateHeaderFile(const char *dirname);
TClass *GetClass() const {return fClass;}
UInt_t GetCheckSum() const {return fCheckSum;}
Int_t GetClassVersion() const {return fClassVersion;}
Int_t GetDataMemberOffset(TDataMember *dm, TMemberStreamer *&streamer) const;
TObjArray *GetElements() const {return fElements;}
ULong_t *GetElems() const {return fElem;}
Int_t GetNdata() const {return fNdata;}
Int_t GetNumber() const {return fNumber;}
Int_t *GetLengths() const {return fLength;}
ULong_t *GetMethods() const {return fMethod;}
Int_t *GetNewTypes() const {return fNewType;}
Int_t GetOffset(const char *) const;
Int_t *GetOffsets() const {return fOffset;}
Version_t GetOldVersion() const {return fOldVersion;}
Int_t GetSize() const;
Int_t GetSizeElements() const;
TStreamerElement *GetStreamerElement(const char*datamember, Int_t& offset) const;
TStreamerElement *GetStreamerElementReal(Int_t i, Int_t j) const;
static Bool_t GetStreamMemberWise();
Int_t *GetTypes() const {return fType;}
Double_t GetValue(char *pointer, Int_t i, Int_t j, Int_t len) const;
Double_t GetValueClones(TClonesArray *clones, Int_t i, Int_t j, Int_t k, Int_t eoffset) const;
Double_t GetValueSTL(TVirtualCollectionProxy *cont, Int_t i, Int_t j, Int_t k, Int_t eoffset) const;
Bool_t IsBuilt() const { return fIsBuilt; }
Bool_t IsOptimized() const {return fOptimized;}
Int_t IsRecovered() const {return TestBit(kRecovered);}
void ls(Option_t *option="") const;
Int_t New(const char *p);
void PrintValue(const char *name, char *pointer, Int_t i, Int_t len, Int_t lenmax=1000) const;
void PrintValueClones(const char *name, TClonesArray *clones, Int_t i, Int_t eoffset, Int_t lenmax=1000) const;
void PrintValueSTL(const char *name, TVirtualCollectionProxy *cont, Int_t i, Int_t eoffset, Int_t lenmax=1000) const;
#ifdef R__BROKEN_FUNCTION_TEMPLATES
// Support for non standard compilers
Int_t ReadBuffer(TBuffer &b, char** const &arrptr, Int_t first,Int_t narr=1,Int_t eoffset=0,Int_t mode=0);
Int_t ReadBufferSkip(TBuffer &b, char** const &arrptr, Int_t i,Int_t kase, TStreamerElement *aElement, Int_t narr, Int_t eoffset);
Int_t ReadBufferConv(TBuffer &b, char** const &arrptr, Int_t i,Int_t kase, TStreamerElement *aElement, Int_t narr, Int_t eoffset);
Int_t ReadBuffer(TBuffer &b, const TVirtualCollectionProxy &arrptr, Int_t first,Int_t narr=1,Int_t eoffset=0,Int_t mode=0);
Int_t ReadBufferSkip(TBuffer &b, const TVirtualCollectionProxy &arrptr, Int_t i,Int_t kase, TStreamerElement *aElement, Int_t narr, Int_t eoffset);
Int_t ReadBufferConv(TBuffer &b, const TVirtualCollectionProxy &arrptr, Int_t i,Int_t kase, TStreamerElement *aElement, Int_t narr, Int_t eoffset);
#else
template <class T>
Int_t ReadBuffer(TBuffer &b, const T &arrptr, Int_t first,Int_t narr=1,Int_t eoffset=0,Int_t mode=0);
template <class T>
Int_t ReadBufferSkip(TBuffer &b, const T &arrptr, Int_t i,Int_t kase, TStreamerElement *aElement, Int_t narr, Int_t eoffset);
template <class T>
Int_t ReadBufferConv(TBuffer &b, const T &arrptr, Int_t i,Int_t kase, TStreamerElement *aElement, Int_t narr, Int_t eoffset);
#endif
Int_t ReadBufferClones(TBuffer &b, TClonesArray *clones, Int_t nc, Int_t first, Int_t eoffset);
Int_t ReadBufferSTL(TBuffer &b, TVirtualCollectionProxy *cont, Int_t nc, Int_t first, Int_t eoffset);
void SetCheckSum(UInt_t checksum) {fCheckSum = checksum;}
void SetClass(TClass *cl) {fClass = cl;}
void SetClassVersion(Int_t vers) {fClassVersion=vers;}
static Bool_t SetStreamMemberWise(Bool_t enable = kTRUE);
void TagFile(TFile *fFile);
Int_t WriteBuffer(TBuffer &b, char *pointer, Int_t first);
Int_t WriteBufferClones(TBuffer &b, TClonesArray *clones, Int_t nc, Int_t first, Int_t eoffset);
Int_t WriteBufferSTL (TBuffer &b, TVirtualCollectionProxy *cont, Int_t nc, Int_t first, Int_t eoffset);
virtual void Update(const TClass *oldClass, TClass *newClass);
static TStreamerElement *GetCurrentElement();
static TStreamerBasicType *GetElementCounter(const char *countName, TClass *cl);
static Bool_t CanOptimize();
static void Optimize(Bool_t opt=kTRUE);
static Bool_t CanDelete();
static void SetCanDelete(Bool_t opt=kTRUE);
#ifdef R__BROKEN_FUNCTION_TEMPLATES
// Support for non standard compilers
Int_t WriteBufferAux (TBuffer &b, char ** const &arr, Int_t first,Int_t narr,Int_t eoffset,Int_t mode);
Int_t WriteBufferAux (TBuffer &b, const TVirtualCollectionProxy &arr, Int_t first,Int_t narr,Int_t eoffset,Int_t mode);
#else
template <class T>
Int_t WriteBufferAux (TBuffer &b, const T &arr, Int_t first,Int_t narr,Int_t eoffset,Int_t mode);
#endif
ClassDef(TStreamerInfo,4) //Streamer information for one class version
};
#endif
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