TAlienFile Class Reference

Definition at line 39 of file TAlienFile.h.

Public Member Functions
	TAlienFile ()
	TAlienFile (const char *purl, Option_t *option="", const char *ftitle="", Int_t compress=ROOT::RCompressionSetting::EDefaults::kUseGeneralPurpose, Bool_t parallelopen=kFALSE, const char *lurl=0, const char *authz=0)
	Create an Alien File Object. More...
virtual	~TAlienFile ()
	TAlienFile file dtor. More...
virtual void	Close (const Option_t *opt="")
	Close the file. More...
Double_t	GetElapsed () const
const char *	GetGUID () const
Int_t	GetImage () const
const char *	GetLfn () const
Int_t	GetNreplicas () const
Long64_t	GetOpenTime () const
const char *	GetPfn () const
const char *	GetSE () const
const char *	GetUrl () const
Public Member Functions inherited from TXNetFile
	TXNetFile ()
	TXNetFile (const char *url, Option_t *option="", const char *fTitle="", Int_t compress=1, Int_t netopt=0, Bool_t parallelopen=kFALSE, const char *logicalurl=0)
	Create a TXNetFile object. More...
virtual	~TXNetFile ()
	Destructor. More...
virtual void	Close (const Option_t *opt="")
	Close the file (see TNetFile::Close() or TFile::Close() for more details). More...
virtual void	Flush ()
	Flushes un-written data. More...
virtual TFile::EAsyncOpenStatus	GetAsyncOpenStatus ()
	Return status of asynchronous request. More...
virtual Int_t	GetBytesToPrefetch () const
	Max number of bytes to prefetch. More...
virtual Bool_t	IsOpen () const
	Return kTRUE if the file is open, kFALSE otherwise. More...
virtual void	Print (Option_t *option="") const
	Print the local statistics. More...
virtual Bool_t	ReadBuffer (char *buf, Int_t len)
	Override TNetFile::ReadBuffer to deal with the xrootd server. More...
virtual Bool_t	ReadBuffer (char *buf, Long64_t pos, Int_t len)
	Pass through to TNetFile implementation which will call back eventually to our ReadBuffer with 2 arguments to deal with xrootd errors. More...
virtual Bool_t	ReadBufferAsync (Long64_t offs, Int_t len)
	Implementation dealing with the xrootd server. More...
virtual Bool_t	ReadBuffers (char *buf, Long64_t *pos, Int_t *len, Int_t nbuf)
	Read the nbuf blocks described in arrays pos and len, where pos[i] is the seek position of block i of length len[i]. More...
virtual Int_t	ReOpen (const Option_t *mode)
	Re-open the file (see TNetFile::ReOpen() or TFile::ReOpen() for more details). More...
virtual void	ResetCache ()
	Reset the cache. More...
virtual Bool_t	WriteBuffer (const char *buffer, Int_t BufferLength)
	Override TNetFile::WriteBuffer to deal with the xrootd server. More...
Public Member Functions inherited from TNetFile
	TNetFile ()
	TNetFile (const char *url, Option_t *option="", const char *ftitle="", Int_t compress=ROOT::RCompressionSetting::EDefaults::kUseGeneralPurpose, Int_t netopt=0)
	Create a TNetFile object. More...
virtual	~TNetFile ()
	TNetFile dtor. Send close message and close socket. More...
void	Close (Option_t *option="")
	Close remote file. More...
void	Flush ()
	Flush file to disk. More...
const TUrl *	GetEndpointUrl () const
Int_t	GetErrorCode () const
Bool_t	IsOpen () const
	Retruns kTRUE if file is open, kFALSE otherwise. More...
Bool_t	Matches (const char *url)
	Return kTRUE if 'url' matches the coordinates of this file. More...
Bool_t	ReadBuffer (char *buf, Int_t len)
	Read specified byte range from remote file via rootd daemon. More...
Bool_t	ReadBuffer (char *buf, Long64_t pos, Int_t len)
	Read specified byte range from remote file via rootd daemon. More...
Bool_t	ReadBuffers (char *buf, Long64_t *pos, Int_t *len, Int_t nbuf)
	Read a list of buffers given in pos[] and len[] and return it in a single buffer. More...
Int_t	ReOpen (Option_t *mode)
	Reopen a file with a different access mode, like from READ to UPDATE or from NEW, CREATE, RECREATE, UPDATE to READ. More...
void	Seek (Long64_t offset, ERelativeTo pos=kBeg)
	Set position from where to start reading. More...
Bool_t	WriteBuffer (const char *buf, Int_t len)
	Write specified byte range to remote file via rootd daemon. More...
Public Member Functions inherited from TFile
	TFile ()
	File default Constructor. More...
	TFile (const char *fname, Option_t *option="", const char *ftitle="", Int_t compress=ROOT::RCompressionSetting::EDefaults::kUseGeneralPurpose)
	Opens or creates a local ROOT file. More...
virtual	~TFile ()
	File destructor. More...
virtual void	Close (Option_t *option="")
	Close a file. More...
virtual void	Copy (TObject &) const
	Copy this to obj. More...
virtual Bool_t	Cp (const char *dst, Bool_t progressbar=kTRUE, UInt_t buffersize=1000000)
	Allows to copy this file to the dst URL. More...
virtual TKey *	CreateKey (TDirectory *mother, const TObject *obj, const char *name, Int_t bufsize)
	Creates key for object and converts data to buffer. More...
virtual TKey *	CreateKey (TDirectory *mother, const void *obj, const TClass *cl, const char *name, Int_t bufsize)
	Creates key for object and converts data to buffer. More...
virtual void	Delete (const char *namecycle="")
	Delete object namecycle. More...
virtual void	Draw (Option_t *option="")
	Fill Graphics Structure and Paint. More...
virtual void	DrawMap (const char *keys="*", Option_t *option="")
	Draw map of objects in this file. More...
virtual void	FillBuffer (char *&buffer)
	Encode file output buffer. More...
virtual void	Flush ()
	Synchronize a file's in-memory and on-disk states. More...
TArchiveFile *	GetArchive () const
Long64_t	GetArchiveOffset () const
Int_t	GetBestBuffer () const
	Return the best buffer size of objects on this file. More...
virtual Long64_t	GetBytesRead () const
virtual Long64_t	GetBytesReadExtra () const
virtual Int_t	GetBytesToPrefetch () const
	Max number of bytes to prefetch. More...
virtual Long64_t	GetBytesWritten () const
	Return the total number of bytes written so far to the file. More...
TFileCacheRead *	GetCacheRead (const TObject *tree=0) const
	Return a pointer to the current read cache. More...
TFileCacheWrite *	GetCacheWrite () const
	Return a pointer to the current write cache. More...
TArrayC *	GetClassIndex () const
Int_t	GetCompressionAlgorithm () const
Float_t	GetCompressionFactor ()
	Return the file compression factor. More...
Int_t	GetCompressionLevel () const
Int_t	GetCompressionSettings () const
virtual Long64_t	GetEND () const
virtual const TUrl *	GetEndpointUrl () const
virtual Int_t	GetErrno () const
	Method returning errno. Is overriden in TRFIOFile. More...
Int_t	GetFd () const
TList *	GetListOfFree () const
TObjArray *	GetListOfProcessIDs () const
virtual Int_t	GetNbytesFree () const
virtual Int_t	GetNbytesInfo () const
virtual TString	GetNewUrl ()
virtual Int_t	GetNfree () const
virtual Int_t	GetNProcessIDs () const
Option_t *	GetOption () const
virtual Int_t	GetReadCalls () const
Int_t	GetRecordHeader (char *buf, Long64_t first, Int_t maxbytes, Int_t &nbytes, Int_t &objlen, Int_t &keylen)
	Read the logical record header starting at a certain postion. More...
Long64_t	GetRelOffset () const
virtual Long64_t	GetSeekFree () const
virtual Long64_t	GetSeekInfo () const
virtual Long64_t	GetSize () const
	Returns the current file size. More...
const TList *	GetStreamerInfoCache ()
	Returns the cached list of StreamerInfos used in this file. More...
virtual TList *	GetStreamerInfoList () final
	Read the list of TStreamerInfo objects written to this file. More...
Int_t	GetVersion () const
virtual void	IncrementProcessIDs ()
virtual Bool_t	IsArchive () const
Bool_t	IsBinary () const
virtual Bool_t	IsOpen () const
	Returns kTRUE in case file is open and kFALSE if file is not open. More...
Bool_t	IsRaw () const
virtual void	ls (Option_t *option="") const
	List file contents. More...
virtual void	MakeFree (Long64_t first, Long64_t last)
	Mark unused bytes on the file. More...
virtual void	MakeProject (const char *dirname, const char *classes="*", Option_t *option="new")
	Generate source code necessary to access the objects stored in the file. More...
virtual void	Map ()
virtual void	Map (Option_t *opt)
	List the contents of a file sequentially. More...
virtual Bool_t	Matches (const char *name)
	Return kTRUE if 'url' matches the coordinates of this file. More...
virtual Bool_t	MustFlush () const
virtual void	Paint (Option_t *option="")
	Paint all objects in the file. More...
virtual void	Print (Option_t *option="") const
	Print all objects in the file. More...
virtual Bool_t	ReadBuffer (char *buf, Int_t len)
	Read a buffer from the file. More...
virtual Bool_t	ReadBuffer (char *buf, Long64_t pos, Int_t len)
	Read a buffer from the file at the offset 'pos' in the file. More...
virtual Bool_t	ReadBufferAsync (Long64_t offs, Int_t len)
virtual Bool_t	ReadBuffers (char *buf, Long64_t *pos, Int_t *len, Int_t nbuf)
	Read the nbuf blocks described in arrays pos and len. More...
virtual void	ReadFree ()
	Read the FREE linked list. More...
virtual TProcessID *	ReadProcessID (UShort_t pidf)
	The TProcessID with number pidf is read from this file. More...
virtual void	ReadStreamerInfo ()
	Read the list of StreamerInfo from this file. More...
virtual Int_t	Recover ()
	Attempt to recover file if not correctly closed. More...
virtual Int_t	ReOpen (Option_t *mode)
	Reopen a file with a different access mode. More...
virtual void	ResetErrno () const
	Method resetting the errno. Is overridden in TRFIOFile. More...
virtual void	Seek (Long64_t offset, ERelativeTo pos=kBeg)
	Seek to a specific position in the file. Pos it either kBeg, kCur or kEnd. More...
virtual void	SetCacheRead (TFileCacheRead *cache, TObject *tree=0, ECacheAction action=kDisconnect)
	Set a pointer to the read cache. More...
virtual void	SetCacheWrite (TFileCacheWrite *cache)
	Set a pointer to the write cache. More...
virtual void	SetCompressionAlgorithm (Int_t algorithm=ROOT::RCompressionSetting::EAlgorithm::kUseGlobal)
	See comments for function SetCompressionSettings. More...
virtual void	SetCompressionLevel (Int_t level=ROOT::RCompressionSetting::ELevel::kUseMin)
	See comments for function SetCompressionSettings. More...
virtual void	SetCompressionSettings (Int_t settings=ROOT::RCompressionSetting::EDefaults::kUseGeneralPurpose)
	Used to specify the compression level and algorithm. More...
virtual void	SetEND (Long64_t last)
virtual void	SetOffset (Long64_t offset, ERelativeTo pos=kBeg)
	Set position from where to start reading. More...
virtual void	SetOption (Option_t *option=">")
virtual void	SetReadCalls (Int_t readcalls=0)
virtual void	ShowStreamerInfo ()
	Show the StreamerInfo of all classes written to this file. More...
virtual Int_t	Sizeof () const
	Return the size in bytes of the file header. More...
void	SumBuffer (Int_t bufsize)
	Increment statistics for buffer sizes of objects in this file. More...
virtual Int_t	Write (const char *name=0, Int_t opt=0, Int_t bufsiz=0)
	Write memory objects to this file. More...
virtual Int_t	Write (const char *name=0, Int_t opt=0, Int_t bufsiz=0) const
	One can not save a const TDirectory object. More...
virtual Bool_t	WriteBuffer (const char *buf, Int_t len)
	Write a buffer to the file. More...
virtual void	WriteFree ()
	Write FREE linked list on the file. More...
virtual void	WriteHeader ()
	Write File Header. More...
virtual UShort_t	WriteProcessID (TProcessID *pid)
	Check if the ProcessID pidd is already in the file, if not, add it and return the index number in the local file list. More...
virtual void	WriteStreamerInfo ()
	Write the list of TStreamerInfo as a single object in this file The class Streamer description for all classes written to this file is saved. More...
Public Member Functions inherited from TDirectoryFile
	TDirectoryFile ()
	Default Constructor. More...
	TDirectoryFile (const char *name, const char *title, Option_t *option="", TDirectory *motherDir=0)
	Create a new TDirectoryFile. More...
virtual	~TDirectoryFile ()
	Destructor. More...
void	Add (TObject *obj, Bool_t replace=kFALSE)
virtual void	Append (TObject *obj, Bool_t replace=kFALSE)
	Append object to this directory. More...
Int_t	AppendKey (TKey *key)
	Insert key in the linked list of keys of this directory. More...
virtual void	Browse (TBrowser *b)
	Browse the content of the directory. More...
void	Build (TFile *motherFile=0, TDirectory *motherDir=0)
	Initialise directory to defaults. More...
virtual Bool_t	cd (const char *path=0)
	Change current directory to "this" directory. More...
virtual TObject *	CloneObject (const TObject *obj, Bool_t autoadd=kTRUE)
	Make a clone of an object using the Streamer facility. More...
virtual void	Close (Option_t *option="")
	Delete all objects from memory and directory structure itself. More...
virtual void	Copy (TObject &) const
	Copy this to obj. More...
virtual void	Delete (const char *namecycle="")
	Delete Objects or/and keys in a directory. More...
virtual void	FillBuffer (char *&buffer)
	Encode directory header into output buffer. More...
virtual TKey *	FindKey (const char *keyname) const
	Find key with name keyname in the current directory. More...
virtual TKey *	FindKeyAny (const char *keyname) const
	Find key with name keyname in the current directory or its subdirectories. More...
virtual TObject *	FindObjectAny (const char *name) const
	Find object by name in the list of memory objects of the current directory or its sub-directories. More...
virtual TObject *	FindObjectAnyFile (const char *name) const
	Scan the memory lists of all files for an object with name. More...
virtual TObject *	Get (const char *namecycle)
	Return pointer to object identified by namecycle. More...
virtual Int_t	GetBufferSize () const
	Return the buffer size to create new TKeys. More...
const TDatime &	GetCreationDate () const
virtual TDirectory *	GetDirectory (const char *apath, Bool_t printError=false, const char *funcname="GetDirectory")
	Find a directory named "apath". More...
virtual TFile *	GetFile () const
virtual TKey *	GetKey (const char *name, Short_t cycle=9999) const
	Return pointer to key with name,cycle. More...
virtual TList *	GetListOfKeys () const
const TDatime &	GetModificationDate () const
virtual Int_t	GetNbytesKeys () const
virtual Int_t	GetNkeys () const
template<class T >
void	GetObject (const char *namecycle, T *&ptr)
virtual void *	GetObjectChecked (const char *namecycle, const char *classname)
	See documentation of TDirectoryFile::GetObjectCheck(const char *namecycle, const TClass *cl) More...
virtual void *	GetObjectChecked (const char *namecycle, const TClass *cl)
	Return pointer to object identified by namecycle if and only if the actual object is a type suitable to be stored as a pointer to a "expectedClass" If expectedClass is null, no check is performed. More...
virtual void *	GetObjectUnchecked (const char *namecycle)
	Return pointer to object identified by namecycle. More...
virtual Long64_t	GetSeekDir () const
virtual Long64_t	GetSeekKeys () const
virtual Long64_t	GetSeekParent () const
Bool_t	IsModified () const
Bool_t	IsWritable () const
virtual void	ls (Option_t *option="") const
	List Directory contents. More...
virtual TDirectory *	mkdir (const char *name, const char *title="")
	Create a sub-directory "a" or a hierarchy of sub-directories "a/b/c/...". More...
virtual TFile *	OpenFile (const char *name, Option_t *option="", const char *ftitle="", Int_t compress=ROOT::RCompressionSetting::EDefaults::kUseGeneralPurpose, Int_t netopt=0)
	Interface to TFile::Open. More...
virtual void	Purge (Short_t nkeep=1)
	Purge lowest key cycles in a directory. More...
virtual void	ReadAll (Option_t *option="")
	Read objects from a ROOT file directory into memory. More...
virtual Int_t	ReadKeys (Bool_t forceRead=kTRUE)
	Read the linked list of keys. More...
virtual Int_t	ReadTObject (TObject *obj, const char *keyname)
	Read object with keyname from the current directory. More...
virtual void	ResetAfterMerge (TFileMergeInfo *)
	Reset the TDirectory after its content has been merged into another Directory. More...
virtual void	rmdir (const char *name)
	Removes subdirectory from the directory. More...
virtual void	Save ()
	Save recursively all directory keys and headers. More...
virtual Int_t	SaveObjectAs (const TObject *obj, const char *filename="", Option_t *option="") const
	Save object in filename. More...
virtual void	SaveSelf (Bool_t force=kFALSE)
	Save Directory keys and header. More...
virtual void	SetBufferSize (Int_t bufsize)
	Set the default buffer size when creating new TKeys. More...
void	SetModified ()
void	SetSeekDir (Long64_t v)
virtual void	SetTRefAction (TObject *ref, TObject *parent)
	Find the action to be executed in the dictionary of the parent class and store the corresponding exec number into fBits. More...
void	SetWritable (Bool_t writable=kTRUE)
	Set the new value of fWritable recursively. More...
virtual Int_t	Sizeof () const
	Return the size in bytes of the directory header. More...
virtual Int_t	Write (const char *name=0, Int_t opt=0, Int_t bufsize=0)
	Write all objects in memory to disk. More...
virtual Int_t	Write (const char *name=0, Int_t opt=0, Int_t bufsize=0) const
	One can not save a const TDirectory object. More...
virtual void	WriteDirHeader ()
	Overwrite the Directory header record. More...
virtual void	WriteKeys ()
	Write Keys linked list on the file. More...
virtual Int_t	WriteObjectAny (const void *obj, const char *classname, const char *name, Option_t *option="", Int_t bufsize=0)
	Write object from pointer of class classname in this directory. More...
virtual Int_t	WriteObjectAny (const void *obj, const TClass *cl, const char *name, Option_t *option="", Int_t bufsize=0)
	Write object of class with dictionary cl in this directory. More...
virtual Int_t	WriteTObject (const TObject *obj, const char *name=0, Option_t *option="", Int_t bufsize=0)
	Write object obj to this directory. More...
Public Member Functions inherited from TDirectory
	TDirectory ()
	Directory default constructor. More...
	TDirectory (const char *name, const char *title, Option_t *option="", TDirectory *motherDir=0)
	Create a new Directory. More...
virtual	~TDirectory ()
	Destructor. More...
virtual void	Add (TObject *obj, Bool_t replace=kFALSE)
virtual void	Append (TObject *obj, Bool_t replace=kFALSE)
	Append object to this directory. More...
virtual Int_t	AppendKey (TKey *)
virtual void	Browse (TBrowser *b)
	Browse the content of the directory. More...
virtual void	Build (TFile *motherFile=0, TDirectory *motherDir=0)
	Initialise directory to defaults. More...
virtual Bool_t	cd (const char *path=0)
	Change current directory to "this" directory. More...
virtual void	Clear (Option_t *option="")
	Delete all objects from a Directory list. More...
virtual TObject *	CloneObject (const TObject *obj, Bool_t autoadd=kTRUE)
	Clone an object. More...
virtual void	Close (Option_t *option="")
	Delete all objects from memory and directory structure itself. More...
virtual void	Copy (TObject &) const
	Copy this to obj. More...
virtual void	Delete (const char *namecycle="")
	Delete Objects or/and keys in a directory. More...
virtual void	DeleteAll (Option_t *option="")
	Delete all objects from memory. More...
virtual void	Draw (Option_t *option="")
	Fill Graphics Structure and Paint. More...
virtual TKey *	FindKey (const char *) const
virtual TKey *	FindKeyAny (const char *) const
virtual TObject *	FindObject (const char *name) const
	Find object by name in the list of memory objects. More...
virtual TObject *	FindObject (const TObject *obj) const
	Find object in the list of memory objects. More...
virtual TObject *	FindObjectAny (const char *name) const
	Find object by name in the list of memory objects of the current directory or its sub-directories. More...
virtual TObject *	FindObjectAnyFile (const char *) const
virtual TObject *	Get (const char *namecycle)
	Return pointer to object identified by namecycle. More...
virtual Int_t	GetBufferSize () const
virtual TDirectory *	GetDirectory (const char *namecycle, Bool_t printError=false, const char *funcname="GetDirectory")
	Find a directory using apath. More...
virtual TFile *	GetFile () const
virtual TKey *	GetKey (const char *, Short_t=9999) const
virtual TList *	GetList () const
virtual TList *	GetListOfKeys () const
virtual TObject *	GetMother () const
virtual TDirectory *	GetMotherDir () const
virtual Int_t	GetNbytesKeys () const
virtual Int_t	GetNkeys () const
template<class T >
void	GetObject (const char *namecycle, T *&ptr)
virtual void *	GetObjectChecked (const char *namecycle, const char *classname)
	See documentation of TDirectory::GetObjectCheck(const char *namecycle, const TClass *cl) More...
virtual void *	GetObjectChecked (const char *namecycle, const TClass *cl)
	Return pointer to object identified by namecycle if and only if the actual object is a type suitable to be stored as a pointer to a "expectedClass" If expectedClass is null, no check is performed. More...
virtual void *	GetObjectUnchecked (const char *namecycle)
	Return pointer to object identified by namecycle. More...
virtual const char *	GetPath () const
	Returns the full path of the directory. More...
virtual const char *	GetPathStatic () const
	Returns the full path of the directory. More...
virtual Long64_t	GetSeekDir () const
virtual Long64_t	GetSeekKeys () const
virtual Long64_t	GetSeekParent () const
TUUID	GetUUID () const
virtual Bool_t	IsFolder () const
	Returns kTRUE in case object contains browsable objects (like containers or lists of other objects). More...
virtual Bool_t	IsModified () const
virtual Bool_t	IsWritable () const
virtual void	ls (Option_t *option="") const
	List Directory contents. More...
virtual TDirectory *	mkdir (const char *name, const char *title="")
	Create a sub-directory "a" or a hierarchy of sub-directories "a/b/c/...". More...
virtual TFile *	OpenFile (const char *, Option_t *="", const char *="", Int_t=1, Int_t=0)
virtual void	Paint (Option_t *option="")
	Paint all objects in the directory. More...
virtual void	Print (Option_t *option="") const
	Print all objects in the directory. More...
virtual void	Purge (Short_t=1)
virtual void	pwd () const
	Print the path of the directory. More...
virtual void	ReadAll (Option_t *="")
virtual Int_t	ReadKeys (Bool_t=kTRUE)
virtual Int_t	ReadTObject (TObject *, const char *)
virtual void	RecursiveRemove (TObject *obj)
	Recursively remove object from a Directory. More...
virtual TObject *	Remove (TObject *)
	Remove an object from the in-memory list. More...
virtual void	rmdir (const char *name)
	Removes subdirectory from the directory When directory is deleted, all keys in all subdirectories will be read first and deleted from file (if exists) Equivalent call is Delete("name;*");. More...
virtual void	Save ()
virtual Int_t	SaveObjectAs (const TObject *, const char *="", Option_t *="") const
	Save object in filename, if filename is 0 or "", a file with "objectname.root" is created. More...
virtual void	SaveSelf (Bool_t=kFALSE)
virtual void	SetBufferSize (Int_t)
virtual void	SetModified ()
virtual void	SetMother (TObject *mother)
virtual void	SetName (const char *newname)
	Set the name for directory If the directory name is changed after the directory was written once, ROOT currently would NOT change the name of correspondent key in the mother directory. More...
virtual void	SetSeekDir (Long64_t)
virtual void	SetTRefAction (TObject *, TObject *)
virtual void	SetWritable (Bool_t)
virtual Int_t	Sizeof () const
	Return size of the TNamed part of the TObject. More...
virtual Int_t	Write (const char *=0, Int_t=0, Int_t=0)
	Write this object to the current directory. More...
virtual Int_t	Write (const char *=0, Int_t=0, Int_t=0) const
	Write this object to the current directory. More...
virtual void	WriteDirHeader ()
virtual void	WriteKeys ()
template<class T >
Int_t	WriteObject (const T *obj, const char *name, Option_t *option="", Int_t bufsize=0)
virtual Int_t	WriteObjectAny (const void *, const char *, const char *, Option_t *="", Int_t=0)
virtual Int_t	WriteObjectAny (const void *, const TClass *, const char *, Option_t *="", Int_t=0)
virtual Int_t	WriteTObject (const TObject *obj, const char *name=0, Option_t *="", Int_t=0)
	See TDirectoryFile::WriteTObject for details. More...
Public Member Functions inherited from TNamed
	TNamed ()
	TNamed (const char *name, const char *title)
	TNamed (const TNamed &named)
	TNamed copy ctor. More...
	TNamed (const TString &name, const TString &title)
virtual	~TNamed ()
	TNamed destructor. More...
virtual void	Clear (Option_t *option="")
	Set name and title to empty strings (""). More...
virtual TObject *	Clone (const char *newname="") const
	Make a clone of an object using the Streamer facility. More...
virtual Int_t	Compare (const TObject *obj) const
	Compare two TNamed objects. More...
virtual void	Copy (TObject &named) const
	Copy this to obj. More...
virtual void	FillBuffer (char *&buffer)
	Encode TNamed into output buffer. More...
virtual const char *	GetName () const
	Returns name of object. More...
virtual const char *	GetTitle () const
	Returns title of object. More...
virtual ULong_t	Hash () const
	Return hash value for this object. More...
virtual Bool_t	IsSortable () const
virtual void	ls (Option_t *option="") const
	List TNamed name and title. More...
TNamed &	operator= (const TNamed &rhs)
	TNamed assignment operator. More...
virtual void	Print (Option_t *option="") const
	Print TNamed name and title. More...
virtual void	SetName (const char *name)
	Set the name of the TNamed. More...
virtual void	SetNameTitle (const char *name, const char *title)
	Set all the TNamed parameters (name and title). More...
virtual void	SetTitle (const char *title="")
	Set the title of the TNamed. More...
virtual Int_t	Sizeof () const
	Return size of the TNamed part of the TObject. More...
Public Member Functions inherited from TObject
	TObject ()
	TObject constructor. More...
	TObject (const TObject &object)
	TObject copy ctor. More...
virtual	~TObject ()
	TObject destructor. More...
void	AbstractMethod (const char *method) const
	Use this method to implement an "abstract" method that you don't want to leave purely abstract. More...
virtual void	AppendPad (Option_t *option="")
	Append graphics object to current pad. More...
virtual void	Browse (TBrowser *b)
	Browse object. May be overridden for another default action. More...
ULong_t	CheckedHash ()
	Check and record whether this class has a consistent Hash/RecursiveRemove setup (*) and then return the regular Hash value for this object. More...
virtual const char *	ClassName () const
	Returns name of class to which the object belongs. More...
virtual void	Clear (Option_t *="")
virtual TObject *	Clone (const char *newname="") const
	Make a clone of an object using the Streamer facility. More...
virtual Int_t	Compare (const TObject *obj) const
	Compare abstract method. More...
virtual void	Copy (TObject &object) const
	Copy this to obj. More...
virtual void	Delete (Option_t *option="")
	Delete this object. More...
virtual Int_t	DistancetoPrimitive (Int_t px, Int_t py)
	Computes distance from point (px,py) to the object. More...
virtual void	Draw (Option_t *option="")
	Default Draw method for all objects. More...
virtual void	DrawClass () const
	Draw class inheritance tree of the class to which this object belongs. More...
virtual TObject *	DrawClone (Option_t *option="") const
	Draw a clone of this object in the current selected pad for instance with: gROOT->SetSelectedPad(gPad). More...
virtual void	Dump () const
	Dump contents of object on stdout. More...
virtual void	Error (const char *method, const char *msgfmt,...) const
	Issue error message. More...
virtual void	Execute (const char *method, const char *params, Int_t *error=0)
	Execute method on this object with the given parameter string, e.g. More...
virtual void	Execute (TMethod *method, TObjArray *params, Int_t *error=0)
	Execute method on this object with parameters stored in the TObjArray. More...
virtual void	ExecuteEvent (Int_t event, Int_t px, Int_t py)
	Execute action corresponding to an event at (px,py). More...
virtual void	Fatal (const char *method, const char *msgfmt,...) const
	Issue fatal error message. More...
virtual TObject *	FindObject (const char *name) const
	Must be redefined in derived classes. More...
virtual TObject *	FindObject (const TObject *obj) const
	Must be redefined in derived classes. More...
virtual Option_t *	GetDrawOption () const
	Get option used by the graphics system to draw this object. More...
virtual const char *	GetIconName () const
	Returns mime type name of object. More...
virtual const char *	GetName () const
	Returns name of object. More...
virtual char *	GetObjectInfo (Int_t px, Int_t py) const
	Returns string containing info about the object at position (px,py). More...
virtual Option_t *	GetOption () const
virtual const char *	GetTitle () const
	Returns title of object. More...
virtual UInt_t	GetUniqueID () const
	Return the unique object id. More...
virtual Bool_t	HandleTimer (TTimer *timer)
	Execute action in response of a timer timing out. More...
virtual ULong_t	Hash () const
	Return hash value for this object. More...
Bool_t	HasInconsistentHash () const
	Return true is the type of this object is known to have an inconsistent setup for Hash and RecursiveRemove (i.e. More...
virtual void	Info (const char *method, const char *msgfmt,...) const
	Issue info message. More...
virtual Bool_t	InheritsFrom (const char *classname) const
	Returns kTRUE if object inherits from class "classname". More...
virtual Bool_t	InheritsFrom (const TClass *cl) const
	Returns kTRUE if object inherits from TClass cl. More...
virtual void	Inspect () const
	Dump contents of this object in a graphics canvas. More...
void	InvertBit (UInt_t f)
virtual Bool_t	IsEqual (const TObject *obj) const
	Default equal comparison (objects are equal if they have the same address in memory). More...
virtual Bool_t	IsFolder () const
	Returns kTRUE in case object contains browsable objects (like containers or lists of other objects). More...
R__ALWAYS_INLINE Bool_t	IsOnHeap () const
virtual Bool_t	IsSortable () const
R__ALWAYS_INLINE Bool_t	IsZombie () const
virtual void	ls (Option_t *option="") const
	The ls function lists the contents of a class on stdout. More...
void	MayNotUse (const char *method) const
	Use this method to signal that a method (defined in a base class) may not be called in a derived class (in principle against good design since a child class should not provide less functionality than its parent, however, sometimes it is necessary). More...
virtual Bool_t	Notify ()
	This method must be overridden to handle object notification. More...
void	Obsolete (const char *method, const char *asOfVers, const char *removedFromVers) const
	Use this method to declare a method obsolete. More...
void	operator delete (void *ptr)
	Operator delete. More...
void	operator delete[] (void *ptr)
	Operator delete []. More...
void *	operator new (size_t sz)
void *	operator new (size_t sz, void *vp)
void *	operator new[] (size_t sz)
void *	operator new[] (size_t sz, void *vp)
TObject &	operator= (const TObject &rhs)
	TObject assignment operator. More...
virtual void	Paint (Option_t *option="")
	This method must be overridden if a class wants to paint itself. More...
virtual void	Pop ()
	Pop on object drawn in a pad to the top of the display list. More...
virtual void	Print (Option_t *option="") const
	This method must be overridden when a class wants to print itself. More...
virtual Int_t	Read (const char *name)
	Read contents of object with specified name from the current directory. More...
virtual void	RecursiveRemove (TObject *obj)
	Recursively remove this object from a list. More...
void	ResetBit (UInt_t f)
virtual void	SaveAs (const char *filename="", Option_t *option="") const
	Save this object in the file specified by filename. More...
virtual void	SavePrimitive (std::ostream &out, Option_t *option="")
	Save a primitive as a C++ statement(s) on output stream "out". More...
void	SetBit (UInt_t f)
void	SetBit (UInt_t f, Bool_t set)
	Set or unset the user status bits as specified in f. More...
virtual void	SetDrawOption (Option_t *option="")
	Set drawing option for object. More...
virtual void	SetUniqueID (UInt_t uid)
	Set the unique object id. More...
virtual void	SysError (const char *method, const char *msgfmt,...) const
	Issue system error message. More...
R__ALWAYS_INLINE Bool_t	TestBit (UInt_t f) const
Int_t	TestBits (UInt_t f) const
virtual void	UseCurrentStyle ()
	Set current style settings in this object This function is called when either TCanvas::UseCurrentStyle or TROOT::ForceStyle have been invoked. More...
virtual void	Warning (const char *method, const char *msgfmt,...) const
	Issue warning message. More...
virtual Int_t	Write (const char *name=0, Int_t option=0, Int_t bufsize=0)
	Write this object to the current directory. More...
virtual Int_t	Write (const char *name=0, Int_t option=0, Int_t bufsize=0) const
	Write this object to the current directory. More...

Static Public Member Functions
static TAlienFile *	Open (const char *lfn, const Option_t *option="", const char *title="", Int_t compress=ROOT::RCompressionSetting::EDefaults::kUseGeneralPurpose, Bool_t parallelopen=kFALSE)
	Static method used to create a TAlienFile object. More...
static TString	SUrl (const char *lfn)
	Get surl from lfn by asking AliEn catalog. More...
Static Public Member Functions inherited from TFile
static TFileOpenHandle *	AsyncOpen (const char *name, Option_t *option="", const char *ftitle="", Int_t compress=ROOT::RCompressionSetting::EDefaults::kUseGeneralPurpose, Int_t netopt=0)
	Submit an asynchronous open request. More...
static Bool_t	Cp (const char *src, const char *dst, Bool_t progressbar=kTRUE, UInt_t buffersize=1000000)
	Allows to copy file from src to dst URL. More...
static TFile *&	CurrentFile ()
	Return the current ROOT file if any. More...
static EAsyncOpenStatus	GetAsyncOpenStatus (const char *name)
	Get status of the async open request related to 'name'. More...
static EAsyncOpenStatus	GetAsyncOpenStatus (TFileOpenHandle *handle)
	Get status of the async open request related to 'handle'. More...
static const char *	GetCacheFileDir ()
	Get the directory where to locally stage/cache remote files. More...
static const TUrl *	GetEndpointUrl (const char *name)
	Get final URL for file being opened asynchronously. More...
static Long64_t	GetFileBytesRead ()
	Static function returning the total number of bytes read from all files. More...
static Long64_t	GetFileBytesWritten ()
	Static function returning the total number of bytes written to all files. More...
static Long64_t	GetFileCounter ()
static Int_t	GetFileReadCalls ()
	Static function returning the total number of read calls from all files. More...
static Bool_t	GetOnlyStaged ()
	Returns staged only flag. More...
static UInt_t	GetOpenTimeout ()
	Returns open timeout (in ms). More...
static Int_t	GetReadaheadSize ()
	Static function returning the readahead buffer size. More...
static Bool_t	GetReadStreamerInfo ()
	If the streamerinfos are to be read at file opening. More...
static EFileType	GetType (const char *name, Option_t *option="", TString *prefix=0)
	Resolve the file type as a function of the protocol field in 'name'. More...
static void	IncrementFileCounter ()
static TFile *	Open (const char *name, Option_t *option="", const char *ftitle="", Int_t compress=ROOT::RCompressionSetting::EDefaults::kUseGeneralPurpose, Int_t netopt=0)
	Create / open a file. More...
static TFile *	Open (TFileOpenHandle *handle)
	Waits for the completion of an asynchronous open request. More...
static Bool_t	SetCacheFileDir (ROOT::Internal::TStringView cacheDir, Bool_t operateDisconnected=kTRUE, Bool_t forceCacheread=kFALSE)
static Bool_t	SetCacheFileDir (std::string_view cacheDir, Bool_t operateDisconnected=kTRUE, Bool_t forceCacheread=kFALSE)
	Sets the directory where to locally stage/cache remote files. More...
static void	SetFileBytesRead (Long64_t bytes=0)
static void	SetFileBytesWritten (Long64_t bytes=0)
static void	SetFileReadCalls (Int_t readcalls=0)
static Bool_t	SetOnlyStaged (Bool_t onlystaged)
	Sets only staged flag. More...
static UInt_t	SetOpenTimeout (UInt_t timeout)
	Sets open timeout time (in ms). Returns previous timeout value. More...
static void	SetReadaheadSize (Int_t bufsize=256000)
static void	SetReadStreamerInfo (Bool_t readinfo=kTRUE)
	Specify if the streamerinfos must be read at file opening. More...
static Bool_t	ShrinkCacheFileDir (Long64_t shrinkSize, Long_t cleanupInteval=0)
	Try to shrink the cache to the desired size. More...
Static Public Member Functions inherited from TDirectory
static void	AddDirectory (Bool_t add=kTRUE)
	Sets the flag controlling the automatic add objects like histograms, TGraph2D, etc in memory. More...
static Bool_t	AddDirectoryStatus ()
	Static function: see TDirectory::AddDirectory for more comments. More...
static Bool_t	Cd (const char *path)
	Change current directory to "path". More...
static TDirectory *&	CurrentDirectory ()
	Return the current directory for the current thread. More...
static void	DecodeNameCycle (const char *namecycle, char *name, Short_t &cycle, const size_t namesize=0)
	Decode a namecycle "aap;2" into name "aap" and cycle "2". More...
static void	EncodeNameCycle (char *buffer, const char *name, Short_t cycle)
	Encode the name and cycle into buffer like: "aap;2". More...
Static Public Member Functions inherited from TObject
static Long_t	GetDtorOnly ()
	Return destructor only flag. More...
static Bool_t	GetObjectStat ()
	Get status of object stat flag. More...
static void	SetDtorOnly (void *obj)
	Set destructor only flag. More...
static void	SetObjectStat (Bool_t stat)
	Turn on/off tracking of objects in the TObjectTable. More...

Protected Member Functions
void	SetElapsed (Double_t real)
void	SetGUID (const char *guid)
void	SetImage (Int_t image)
void	SetNreplicas (Int_t nrep)
void	SetPfn (const char *pfn)
void	SetSE (const char *se)
void	SetUrl (const char *url)
Protected Member Functions inherited from TNetFile
	TNetFile (const char *url, const char *ftitle, Int_t comp, Bool_t)
	Create a TNetFile object. More...
	TNetFile (const TNetFile &)
virtual void	ConnectServer (Int_t *stat, EMessageTypes *kind, Int_t netopt, Int_t tcpwindowsize, Bool_t forceOpen, Bool_t forceRead)
	Connect to remote rootd server. More...
virtual void	Create (const char *url, Option_t *option, Int_t netopt)
	Create a NetFile object. More...
virtual void	Create (TSocket *s, Option_t *option, Int_t netopt)
	Create a NetFile object using an existing connection (socket s). More...
void	Init (Bool_t create)
	Initialize a TNetFile object. More...
TNetFile &	operator= (const TNetFile &)
void	Print (Option_t *option) const
	Print some info about the net file. More...
void	PrintError (const char *where, Int_t err)
	Print error string depending on error code. More...
Int_t	Recv (Int_t &status, EMessageTypes &kind)
	Return status from rootd server and message kind. More...
Int_t	SysClose (Int_t fd)
	Close currently open file. More...
Int_t	SysOpen (const char *pathname, Int_t flags, UInt_t mode)
	Open a remote file. Requires fOption to be set correctly. More...
Int_t	SysStat (Int_t fd, Long_t *id, Long64_t *size, Long_t *flags, Long_t *modtime)
	Return file stat information. More...
Protected Member Functions inherited from TFile
virtual Long64_t	DirCreateEntry (TDirectory *)
virtual Int_t	DirReadKeys (TDirectory *)
virtual void	DirWriteHeader (TDirectory *)
virtual void	DirWriteKeys (TDirectory *)
Bool_t	FlushWriteCache ()
	Flush the write cache if active. More...
virtual EAsyncOpenStatus	GetAsyncOpenStatus ()
virtual InfoListRet	GetStreamerInfoListImpl (bool lookupSICache)
	See documentation of GetStreamerInfoList for more details. More...
virtual void	Init (Bool_t create)
	Initialize a TFile object. More...
Int_t	MakeProjectParMake (const char *packname, const char *filename)
	Create makefile at 'filemake' for PAR package 'pack'. More...
Int_t	MakeProjectParProofInf (const char *packname, const char *proofinfdir)
	Create BUILD.sh and SETUP.C under 'proofinf' for PAR package 'pack'. More...
Int_t	ReadBufferViaCache (char *buf, Int_t len)
	Read buffer via cache. More...
virtual Int_t	SysClose (Int_t fd)
	Interface to system close. All arguments like in POSIX close(). More...
virtual Int_t	SysOpen (const char *pathname, Int_t flags, UInt_t mode)
	Interface to system open. All arguments like in POSIX open(). More...
virtual Int_t	SysRead (Int_t fd, void *buf, Int_t len)
	Interface to system read. All arguments like in POSIX read(). More...
virtual Long64_t	SysSeek (Int_t fd, Long64_t offset, Int_t whence)
	Interface to system lseek. More...
virtual Int_t	SysStat (Int_t fd, Long_t *id, Long64_t *size, Long_t *flags, Long_t *modtime)
	Return file stat information. More...
virtual Int_t	SysSync (Int_t fd)
	Interface to system fsync. All arguments like in POSIX fsync(). More...
virtual Int_t	SysWrite (Int_t fd, const void *buf, Int_t len)
	Interface to system write. All arguments like in POSIX write(). More...
Int_t	WriteBufferViaCache (const char *buf, Int_t len)
	Write buffer via cache. More...
Protected Member Functions inherited from TDirectoryFile
virtual void	CleanTargets ()
	Clean the pointers to this object (gDirectory, TContext, etc.) More...
void	Init (TClass *cl=0)
	Initialize the key associated with this directory (and the related data members. More...
Protected Member Functions inherited from TDirectory
	TDirectory (const TDirectory &directory)
	Copy constructor. More...
Bool_t	cd1 (const char *path)
	flag to add histograms, graphs,etc to the directory More...
virtual void	CleanTargets ()
	Clean the pointers to this object (gDirectory, TContext, etc.). More...
void	FillFullPath (TString &buf) const
	Recursive method to fill full path for directory. More...
void	operator= (const TDirectory &)
void	RegisterContext (TContext *ctxt)
	Register a TContext pointing to this TDirectory object. More...
void	UnregisterContext (TContext *ctxt)
	UnRegister a TContext pointing to this TDirectory object. More...
Protected Member Functions inherited from TObject
virtual void	DoError (int level, const char *location, const char *fmt, va_list va) const
	Interface to ErrorHandler (protected). More...
void	MakeZombie ()

Private Attributes
TString	fAuthz
Double_t	fElapsed
TString	fGUID
Int_t	fImage
TString	fLfn
Int_t	fNreplicas
Long64_t	fOpenedAt
TString	fPfn
TString	fSE
TString	fUrl

Additional Inherited Members
Public Types inherited from TFile
enum	{ kStartBigFile = 2000000000 }
enum	EAsyncOpenStatus { kAOSNotAsync = -1 , kAOSFailure = 0 , kAOSInProgress = 1 , kAOSSuccess = 2 }
	Asynchronous open request status. More...
enum	ECacheAction { kDisconnect = 0 , kDoNotDisconnect = 1 }
	TTreeCache flushing semantics. More...
enum	EFileType {   kDefault = 0 , kLocal = 1 , kNet = 2 , kWeb = 3 ,   kFile = 4 , kMerge = 5 }
	File type. More...
enum	EOpenTimeOut { kInstantTimeout = 0 , kEternalTimeout = 999999999 }
	Open timeout constants. More...
enum	ERelativeTo { kBeg = 0 , kCur = 1 , kEnd = 2 }
enum	EStatusBits {   kRecovered = BIT(10) , kHasReferences = BIT(11) , kDevNull = BIT(12) , kWriteError = BIT(14) ,   kBinaryFile = BIT(15) , kRedirected = BIT(16) }
	TFile status bits. BIT(13) is taken up by TObject. More...
Public Types inherited from TDirectoryFile
enum	{ kCloseDirectory = BIT(7) }
Public Types inherited from TObject
enum	{   kIsOnHeap = 0x01000000 , kNotDeleted = 0x02000000 , kZombie = 0x04000000 , kInconsistent = 0x08000000 ,   kBitMask = 0x00ffffff }
enum	{ kSingleKey = BIT(0) , kOverwrite = BIT(1) , kWriteDelete = BIT(2) }
enum	EDeprecatedStatusBits { kObjInCanvas = BIT(3) }
enum	EStatusBits {   kCanDelete = BIT(0) , kMustCleanup = BIT(3) , kIsReferenced = BIT(4) , kHasUUID = BIT(5) ,   kCannotPick = BIT(6) , kNoContextMenu = BIT(8) , kInvalidObject = BIT(13) }
Static Protected Member Functions inherited from TDirectory
static Bool_t	Cd1 (const char *path)
	Change current directory to "path". More...
Protected Attributes inherited from TNetFile
TUrl	fEndpointUrl
Int_t	fErrorCode
Int_t	fNetopt
Int_t	fProtocol
TSocket *	fSocket
TString	fUser
Protected Attributes inherited from TFile
TArchiveFile *	fArchive
	!Archive file from which we read this file More...
Long64_t	fArchiveOffset
	!Offset at which file starts in archive More...
TFileOpenHandle *	fAsyncHandle
	!For proper automatic cleanup More...
EAsyncOpenStatus	fAsyncOpenStatus
	!Status of an asynchronous open request More...
Long64_t	fBEGIN
	First used byte in file. More...
Long64_t	fBytesRead
	Number of bytes read from this file. More...
Long64_t	fBytesReadExtra
	Number of extra bytes (overhead) read by the readahead buffer. More...
Long64_t	fBytesWrite
	Number of bytes written to this file. More...
TFileCacheRead *	fCacheRead
	!Pointer to the read cache (if any) More...
TMap *	fCacheReadMap
	!Pointer to the read cache (if any) More...
TFileCacheWrite *	fCacheWrite
	!Pointer to the write cache (if any) More...
TArrayC *	fClassIndex
	!Index of TStreamerInfo classes written to this file More...
Int_t	fCompress
	Compression level and algorithm. More...
Int_t	fD
	File descriptor. More...
Long64_t	fEND
	Last used byte in file. More...
TList *	fFree
	Free segments linked list table. More...
TList *	fInfoCache
	!Cached list of the streamer infos in this file More...
Bool_t	fInitDone: 1
	!True if the file has been initialized More...
Bool_t	fIsArchive: 1
	!True if this is a pure archive file More...
Bool_t	fIsPcmFile: 1
	!True if the file is a ROOT pcm file. More...
Bool_t	fIsRootFile: 1
	!True is this is a ROOT file, raw file otherwise More...
Bool_t	fMustFlush: 1
	!True if the file buffers must be flushed More...
Int_t	fNbytesFree
	Number of bytes for free segments structure. More...
Int_t	fNbytesInfo
	Number of bytes for StreamerInfo record. More...
Bool_t	fNoAnchorInName: 1
	!True if we don't want to force the anchor to be appended to the file name More...
Int_t	fNProcessIDs
	Number of TProcessID written to this file. More...
Long64_t	fOffset
	!Seek offset cache More...
TList *	fOpenPhases
	!Time info about open phases More...
TString	fOption
	File options. More...
TObjArray *	fProcessIDs
	!Array of pointers to TProcessIDs More...
Int_t	fReadCalls
	Number of read calls ( not counting the cache calls ) More...
TString	fRealName
	Effective real file name (not original url) More...
Long64_t	fSeekFree
	Location on disk of free segments structure. More...
Long64_t	fSeekInfo
	Location on disk of StreamerInfo record. More...
Double_t	fSum2Buffer
	Sum of squares of buffer sizes of objects written so far. More...
Double_t	fSumBuffer
	Sum of buffer sizes of objects written so far. More...
Char_t	fUnits
	Number of bytes for file pointers. More...
TUrl	fUrl
	!URL of file More...
Int_t	fVersion
	File format version. More...
std::mutex	fWriteMutex
	!Lock for writing baskets / keys into the file. More...
Int_t	fWritten
	Number of objects written so far. More...
Protected Attributes inherited from TDirectoryFile
Int_t	fBufferSize
	Default buffer size to create new TKeys. More...
TDatime	fDatimeC
	Date and time when directory is created. More...
TDatime	fDatimeM
	Date and time of last modification. More...
TFile *	fFile
	Pointer to current file in memory. More...
TList *	fKeys
	Pointer to keys list in memory. More...
Bool_t	fModified
	True if directory has been modified. More...
Int_t	fNbytesKeys
	Number of bytes for the keys. More...
Int_t	fNbytesName
	Number of bytes in TNamed at creation time. More...
Long64_t	fSeekDir
	Location of directory on file. More...
Long64_t	fSeekKeys
	Location of Keys record on file. More...
Long64_t	fSeekParent
	Location of parent directory on file. More...
Bool_t	fWritable
	True if directory is writable. More...
Protected Attributes inherited from TDirectory
TContext *	fContext
	Buffer for GetPath() function. More...
std::atomic< size_t >	fContextPeg
	Pointer to a list of TContext object pointing to this TDirectory. More...
TList *	fList
TObject *	fMother
TString	fPathBuffer
std::atomic_flag	fSpinLock
	Counter delaying the TDirectory destructor from finishing. More...
TUUID	fUUID
Protected Attributes inherited from TNamed
TString	fName
TString	fTitle
Static Protected Attributes inherited from TFile
static TList *	fgAsyncOpenRequests = 0
static std::atomic< Long64_t >	fgBytesRead {0}
	Number of bytes read by all TFile objects. More...
static std::atomic< Long64_t >	fgBytesWrite {0}
	Number of bytes written by all TFile objects. More...
static TString	fgCacheFileDir
	Directory where to locally stage files. More...
static Bool_t	fgCacheFileDisconnected = kTRUE
	Indicates, we trust in the files in the cache dir without stat on the cached file. More...
static Bool_t	fgCacheFileForce = kFALSE
	Indicates, to force all READ to CACHEREAD. More...
static std::atomic< Long64_t >	fgFileCounter {0}
	Counter for all opened files. More...
static Bool_t	fgOnlyStaged = 0
	Before the file is opened, it is checked, that the file is staged, if not, the open fails. More...
static UInt_t	fgOpenTimeout = TFile::kEternalTimeout
	Timeout for open operations in ms - 0 corresponds to blocking i/o. More...
static Int_t	fgReadaheadSize = 256000
	Readahead buffer size. More...
static std::atomic< Int_t >	fgReadCalls {0}
	Number of bytes read from all TFile objects. More...
static Bool_t	fgReadInfo = kTRUE
	if true (default) ReadStreamerInfo is called when opening a file More...
static ROOT::TRWSpinLock	fgRwLock
	!Read-write lock to protect global PID list More...
static ROOT::Internal::RConcurrentHashColl	fgTsSIHashes
	!TS Set of hashes built from read streamer infos More...
Static Protected Attributes inherited from TDirectory
static Bool_t	fgAddDirectory = kTRUE
	MSVC doesn't support = ATOMIC_FLAG_INIT;. More...

#include <TAlienFile.h>

Inheritance diagram for TAlienFile:

Constructor & Destructor Documentation

TAlienFile() [1/2]

TAlienFile::TAlienFile ( )

inline

Definition at line 53 of file TAlienFile.h.

TAlienFile() [2/2]

TAlienFile::TAlienFile	(	const char *	purl,
		Option_t *	option = "",
		const char *	ftitle = "",
		Int_t	compress = ROOT::RCompressionSetting::EDefaults::kUseGeneralPurpose,
		Bool_t	parallelopen = kFALSE,
		const char *	lurl = 0,
		const char *	authz = 0
	)

Create an Alien File Object.

An AliEn File is the same as a TFile except that its real tranfer URL is resolved via an Alien service. The url argument must be of the form: alien:/[machine]/path/file.root Using the option access, another access protocol (PFN) can be specified for an LFN e.g.: "alien:///alice/test.root" If you want to write a file on specific storage element use the syntax "alien:///alice/test.root?&se=Alice::CERN::Storage" The default SE is specified by the environment variable alien_CLOSE_SE

If you read a file, the closest file image to alien_CLOSE_SE is taken. If the file cannot opened from the closest image, the next image is tried, until there is no image location left to be tried.

If the file specified in the URL does not exist, is not accessable or can not be created the kZombie bit will be set in the TAlienFile object. Use IsZombie() to see if the file is accessable. For a description of the option and other arguments see the TFile ctor. The preferred interface to this constructor is via TFile::Open().

Warning: TAlienFile objects should only be created through the factory functions: TFile::Open("alien://..."); or TAlienFile::Open("alien://...");

Don't use "new TAlienFile" directly unless you know, what you are doing

Definition at line 82 of file TAlienFile.cxx.

~TAlienFile()

TAlienFile::~TAlienFile ( )

virtual

TAlienFile file dtor.

Definition at line 534 of file TAlienFile.cxx.

Member Function Documentation

Close()

void TAlienFile::Close ( const Option_t *  opt = "" )

virtual

Close the file.

Reimplemented from TXNetFile.

Definition at line 546 of file TAlienFile.cxx.

GetElapsed()

Double_t TAlienFile::GetElapsed ( ) const

inline

Definition at line 63 of file TAlienFile.h.

GetGUID()

const char * TAlienFile::GetGUID ( ) const

inline

Definition at line 62 of file TAlienFile.h.

GetImage()

Int_t TAlienFile::GetImage ( ) const

inline

Definition at line 64 of file TAlienFile.h.

GetLfn()

const char * TAlienFile::GetLfn ( ) const

inline

Definition at line 65 of file TAlienFile.h.

GetNreplicas()

Int_t TAlienFile::GetNreplicas ( ) const

inline

Definition at line 66 of file TAlienFile.h.

GetOpenTime()

Long64_t TAlienFile::GetOpenTime ( ) const

inline

Definition at line 67 of file TAlienFile.h.

GetPfn()

const char * TAlienFile::GetPfn ( ) const

inline

Definition at line 68 of file TAlienFile.h.

GetSE()

const char * TAlienFile::GetSE ( ) const

inline

Definition at line 69 of file TAlienFile.h.

GetUrl()

const char * TAlienFile::GetUrl ( ) const

inline

Definition at line 70 of file TAlienFile.h.

Open()

TAlienFile * TAlienFile::Open ( const char *  lfn, const Option_t *  option = "", const char *  title = "", Int_t  compress = ROOT::RCompressionSetting::EDefaults::kUseGeneralPurpose, Bool_t  parallelopen = kFALSE  )

static

Static method used to create a TAlienFile object.

For options see TAlienFile ctor.

Definition at line 104 of file TAlienFile.cxx.

SetElapsed()

void TAlienFile::SetElapsed ( Double_t  real )

inlineprotected

Definition at line 74 of file TAlienFile.h.

SetGUID()

void TAlienFile::SetGUID ( const char *  guid )

inlineprotected

Definition at line 73 of file TAlienFile.h.

SetImage()

void TAlienFile::SetImage ( Int_t  image )

inlineprotected

Definition at line 75 of file TAlienFile.h.

SetNreplicas()

void TAlienFile::SetNreplicas ( Int_t  nrep )

inlineprotected

Definition at line 76 of file TAlienFile.h.

SetPfn()

void TAlienFile::SetPfn ( const char *  pfn )

inlineprotected

Definition at line 77 of file TAlienFile.h.

SetSE()

void TAlienFile::SetSE ( const char *  se )

inlineprotected

Definition at line 78 of file TAlienFile.h.

SetUrl()

void TAlienFile::SetUrl ( const char *  url )

inlineprotected

Definition at line 79 of file TAlienFile.h.

SUrl()

TString TAlienFile::SUrl ( const char *  lfn )

static

Get surl from lfn by asking AliEn catalog.

Definition at line 612 of file TAlienFile.cxx.

Member Data Documentation

fAuthz

TString TAlienFile::fAuthz

private

Definition at line 43 of file TAlienFile.h.

fElapsed

Double_t TAlienFile::fElapsed

private

Definition at line 51 of file TAlienFile.h.

fGUID

TString TAlienFile::fGUID

private

Definition at line 44 of file TAlienFile.h.

fImage

Int_t TAlienFile::fImage

private

Definition at line 48 of file TAlienFile.h.

fLfn

TString TAlienFile::fLfn

private

Definition at line 42 of file TAlienFile.h.

fNreplicas

Int_t TAlienFile::fNreplicas

private

Definition at line 49 of file TAlienFile.h.

fOpenedAt

Long64_t TAlienFile::fOpenedAt

private

Definition at line 50 of file TAlienFile.h.

fPfn

TString TAlienFile::fPfn

private

Definition at line 46 of file TAlienFile.h.

fSE

TString TAlienFile::fSE

private

Definition at line 47 of file TAlienFile.h.

fUrl

TString TAlienFile::fUrl

private

Definition at line 45 of file TAlienFile.h.

Libraries for TAlienFile:

[legend]