A++ » INCLUDE » TFileCacheRead

class TFileCacheRead: public TObject

Function Members (Methods)

public:
virtual~TFileCacheRead()
voidTObject::AbstractMethod(const char* method) const
virtual Int_tAddBranch(TBranch*, Bool_t = kFALSE)
virtual Int_tAddBranch(const char*, Bool_t = kFALSE)
virtual voidAddNoCacheBytesRead(Long64_t len)
virtual voidAddNoCacheReadCalls(Int_t reads)
virtual voidTObject::AppendPad(Option_t* option = "")
virtual voidTObject::Browse(TBrowser* b)
static TClass*Class()
virtual const char*TObject::ClassName() const
virtual voidTObject::Clear(Option_t* = "")
virtual TObject*TObject::Clone(const char* newname = "") const
virtual voidClose(Option_t* option = "")
virtual Int_tTObject::Compare(const TObject* obj) const
virtual voidTObject::Copy(TObject& object) const
virtual voidTObject::Delete(Option_t* option = "")MENU
virtual Int_tTObject::DistancetoPrimitive(Int_t px, Int_t py)
virtual voidTObject::Draw(Option_t* option = "")
virtual voidTObject::DrawClass() constMENU
virtual TObject*TObject::DrawClone(Option_t* option = "") constMENU
virtual voidTObject::Dump() constMENU
virtual voidTObject::Error(const char* method, const char* msgfmt) const
virtual voidTObject::Execute(const char* method, const char* params, Int_t* error = 0)
virtual voidTObject::Execute(TMethod* method, TObjArray* params, Int_t* error = 0)
virtual voidTObject::ExecuteEvent(Int_t event, Int_t px, Int_t py)
virtual voidTObject::Fatal(const char* method, const char* msgfmt) const
virtual TObject*TObject::FindObject(const char* name) const
virtual TObject*TObject::FindObject(const TObject* obj) const
virtual Int_tGetBufferSize() const
virtual Long64_tGetBytesRead() const
virtual Long64_tGetBytesReadExtra() const
virtual Option_t*TObject::GetDrawOption() const
static Long_tTObject::GetDtorOnly()
TFile*GetFile() const
virtual const char*TObject::GetIconName() const
virtual const char*TObject::GetName() const
virtual Long64_tGetNoCacheBytesRead() const
virtual Int_tGetNoCacheReadCalls() const
Int_tGetNseek() const
Int_tGetNtot() const
virtual char*TObject::GetObjectInfo(Int_t px, Int_t py) const
static Bool_tTObject::GetObjectStat()
virtual Option_t*TObject::GetOption() const
Long64_tGetPrefetchedBlocks() const
virtual TFilePrefetch*GetPrefetchObj()
virtual Int_tGetReadCalls() const
virtual const char*TObject::GetTitle() const
virtual UInt_tTObject::GetUniqueID() const
virtual Int_tGetUnzipBuffer(char**, Long64_t, Int_t, Bool_t*)
virtual Bool_tTObject::HandleTimer(TTimer* timer)
virtual ULong_tTObject::Hash() const
virtual voidTObject::Info(const char* method, const char* msgfmt) const
virtual Bool_tTObject::InheritsFrom(const char* classname) const
virtual Bool_tTObject::InheritsFrom(const TClass* cl) const
virtual voidTObject::Inspect() constMENU
voidTObject::InvertBit(UInt_t f)
virtual TClass*IsA() const
virtual Bool_tIsAsyncReading() const
virtual Bool_tIsEnablePrefetching() const
virtual Bool_tTObject::IsEqual(const TObject* obj) const
virtual Bool_tTObject::IsFolder() const
virtual Bool_tIsLearning() const
Bool_tTObject::IsOnHeap() const
virtual Bool_tTObject::IsSortable() const
Bool_tTObject::IsZombie() const
virtual voidTObject::ls(Option_t* option = "") const
voidTObject::MayNotUse(const char* method) const
virtual Bool_tTObject::Notify()
voidTObject::Obsolete(const char* method, const char* asOfVers, const char* removedFromVers) const
voidTObject::operator delete(void* ptr)
voidTObject::operator delete(void* ptr, void* vp)
voidTObject::operator delete[](void* ptr)
voidTObject::operator delete[](void* ptr, void* vp)
void*TObject::operator new(size_t sz)
void*TObject::operator new(size_t sz, void* vp)
void*TObject::operator new[](size_t sz)
void*TObject::operator new[](size_t sz, void* vp)
virtual voidTObject::Paint(Option_t* option = "")
virtual voidTObject::Pop()
virtual voidPrefetch(Long64_t pos, Int_t len)
virtual voidPrint(Option_t* option = "") const
virtual Int_tTObject::Read(const char* name)
virtual Int_tReadBuffer(char* buf, Long64_t pos, Int_t len)
virtual Int_tReadBufferExt(char* buf, Long64_t pos, Int_t len, Int_t& loc)
virtual Int_tReadBufferExtNormal(char* buf, Long64_t pos, Int_t len, Int_t& loc)
virtual Int_tReadBufferExtPrefetch(char* buf, Long64_t pos, Int_t len, Int_t& loc)
virtual voidTObject::RecursiveRemove(TObject* obj)
voidTObject::ResetBit(UInt_t f)
virtual voidTObject::SaveAs(const char* filename = "", Option_t* option = "") constMENU
virtual voidTObject::SavePrimitive(ostream& out, Option_t* option = "")
virtual voidSecondPrefetch(Long64_t, Int_t)
virtual voidSecondSort()
voidTObject::SetBit(UInt_t f)
voidTObject::SetBit(UInt_t f, Bool_t set)
virtual Int_tSetBufferSize(Int_t buffersize)
virtual voidTObject::SetDrawOption(Option_t* option = "")MENU
static voidTObject::SetDtorOnly(void* obj)
virtual voidSetEnablePrefetching(Bool_t setPrefetching = kFALSE)
virtual voidSetFile(TFile* file, TFile::ECacheAction action = TFile::kDisconnect)
static voidTObject::SetObjectStat(Bool_t stat)
virtual voidSetSkipZip(Bool_t = kTRUE)
virtual voidTObject::SetUniqueID(UInt_t uid)
virtual voidShowMembers(TMemberInspector& insp) const
virtual voidSort()
virtual voidStreamer(TBuffer&)
voidStreamerNVirtual(TBuffer& ClassDef_StreamerNVirtual_b)
virtual voidTObject::SysError(const char* method, const char* msgfmt) const
Bool_tTObject::TestBit(UInt_t f) const
Int_tTObject::TestBits(UInt_t f) const
TFileCacheRead()
TFileCacheRead(TFile* file, Int_t buffersize, TObject* tree = 0)
virtual voidTObject::UseCurrentStyle()
virtual voidWaitFinishPrefetch()
virtual voidTObject::Warning(const char* method, const char* msgfmt) const
virtual Int_tTObject::Write(const char* name = 0, Int_t option = 0, Int_t bufsize = 0)
virtual Int_tTObject::Write(const char* name = 0, Int_t option = 0, Int_t bufsize = 0) const
protected:
virtual voidTObject::DoError(int level, const char* location, const char* fmt, va_list va) const
voidTObject::MakeZombie()
voidSetEnablePrefetchingImpl(Bool_t setPrefetching = kFALSE)

Data Members

public:
static TObject::(anonymous)TObject::kBitMask
static TObject::EStatusBitsTObject::kCanDelete
static TObject::EStatusBitsTObject::kCannotPick
static TObject::EStatusBitsTObject::kHasUUID
static TObject::EStatusBitsTObject::kInvalidObject
static TObject::(anonymous)TObject::kIsOnHeap
static TObject::EStatusBitsTObject::kIsReferenced
static TObject::EStatusBitsTObject::kMustCleanup
static TObject::EStatusBitsTObject::kNoContextMenu
static TObject::(anonymous)TObject::kNotDeleted
static TObject::EStatusBitsTObject::kObjInCanvas
static TObject::(anonymous)TObject::kOverwrite
static TObject::(anonymous)TObject::kSingleKey
static TObject::(anonymous)TObject::kWriteDelete
static TObject::(anonymous)TObject::kZombie
protected:
Bool_tfAsyncReading
Bool_tfBIsSorted
Bool_tfBIsTransferred
Int_t*fBLen[fBNb]
Int_tfBNb
Int_tfBNseek
Int_tfBNtot
Long64_t*fBPos[fBNb]
Long64_t*fBSeek[fBNseek]
Int_t*fBSeekIndex[fBNseek]
Int_t*fBSeekLen[fBNseek]
Int_t*fBSeekPos[fBNseek]
Int_tfBSeekSize
Long64_t*fBSeekSort[fBNseek]
Int_t*fBSeekSortLen[fBNseek]
char*fBuffer[fBufferSize] buffer of contiguous prefetched blocks
Int_tfBufferLenCurrent buffer length (<= fBufferSize)
Int_tfBufferSizeAllocated size of fBuffer (at a given time)
Int_tfBufferSizeMinOriginal size of fBuffer
Long64_tfBytesReadNumber of bytes read for this cache
Long64_tfBytesReadExtraNumber of extra bytes (overhead) read by the readahead buffer
Bool_tfEnablePrefetchingreading by prefetching asynchronously
TFile*fFilePointer to file
Bool_tfIsSortedTrue if fSeek array is sorted
Bool_tfIsTransferredTrue when fBuffer contains something valid
Int_t*fLen[fNb] Length of long buffers
Int_tfNbNumber of long buffers
Long64_tfNoCacheBytesReadNumber of bytes read by basket to fill cached tree
Int_tfNoCacheReadCallsNumber of read calls by basket to fill cached tree
Int_tfNseekNumber of blocks to be prefetched
Int_tfNtotTotal size of prefetched blocks
Long64_t*fPos[fNb] start of long buffers
TFilePrefetch*fPrefetch! Object that does the asynchronous reading in another thread
Long64_tfPrefetchedBlocksNumber of blocks prefetched.
Int_tfReadCallsNumber of read calls for this cache
Long64_t*fSeek[fNseek] Position on file of buffers to be prefetched
Int_t*fSeekIndex[fNseek] sorted index table of fSeek
Int_t*fSeekLen[fNseek] Length of buffers to be prefetched
Int_t*fSeekPos[fNseek] Position of sorted blocks in fBuffer
Int_tfSeekSizeAllocated size of fSeek
Long64_t*fSeekSort[fNseek] Position on file of buffers to be prefetched (sorted)
Int_t*fSeekSortLen[fNseek] Length of buffers to be prefetched (sorted)

Class Charts

Inheritance Chart:
TObject
←
TFileCacheRead
←
TTreeCache
 ←
TTreeCacheUnzip

Function documentation

void SetEnablePrefetchingImpl(Bool_t setPrefetching = kFALSE)
TFileCacheRead(const TFileCacheRead& )
TFileCacheRead& operator=(const TFileCacheRead& )
TFileCacheRead()
TFileCacheRead(TFile* file, Int_t buffersize, TObject* tree = 0)
virtual ~TFileCacheRead()
Int_t AddBranch(TBranch* , Bool_t = kFALSE)
{ return 0; }
Int_t AddBranch(const char* , Bool_t = kFALSE)
{ return 0; }
void AddNoCacheBytesRead(Long64_t len)
{ fNoCacheBytesRead += len; }
void AddNoCacheReadCalls(Int_t reads)
{ fNoCacheReadCalls += reads; }
void Close(Option_t* option = "")
Int_t GetBufferSize() const
{ return fBufferSize; }
Long64_t GetBytesRead() const
{ return fBytesRead; }
Long64_t GetNoCacheBytesRead() const
{ return fNoCacheBytesRead; }
Long64_t GetBytesReadExtra() const
{ return fBytesReadExtra; }
TFile * GetFile() const
{ return fFile; }
Int_t GetNseek() const
{ return fNseek; }
Int_t GetNtot() const
{ return fNtot; }
Int_t GetReadCalls() const
{ return fReadCalls; }
Int_t GetNoCacheReadCalls() const
{ return fNoCacheReadCalls; }
Int_t GetUnzipBuffer(char** , Long64_t , Int_t , Bool_t* )
{ return -1; }
Long64_t GetPrefetchedBlocks() const
{ return fPrefetchedBlocks; }
Bool_t IsAsyncReading() const
{ return fAsyncReading; }
void SetEnablePrefetching(Bool_t setPrefetching = kFALSE)
Bool_t IsEnablePrefetching() const
{ return fEnablePrefetching; }
Bool_t IsLearning() const
{return kFALSE;}
void Prefetch(Long64_t pos, Int_t len)
void Print(Option_t* option = "") const
Int_t ReadBufferExt(char* buf, Long64_t pos, Int_t len, Int_t& loc)
Int_t ReadBufferExtNormal(char* buf, Long64_t pos, Int_t len, Int_t& loc)
Int_t ReadBufferExtPrefetch(char* buf, Long64_t pos, Int_t len, Int_t& loc)
Int_t ReadBuffer(char* buf, Long64_t pos, Int_t len)
Int_t SetBufferSize(Int_t buffersize)
void SetFile(TFile* file, TFile::ECacheAction action = TFile::kDisconnect)
void SetSkipZip(Bool_t = kTRUE)
{}
void Sort()
void SecondSort()
void SecondPrefetch(Long64_t , Int_t )
TFilePrefetch* GetPrefetchObj()
void WaitFinishPrefetch()