ROOT » NET » NET » TParallelMergingFile

class TParallelMergingFile: public TMemFile


TParallelMergingFile

Specialization of TMemFile to connect to a parallel file merger.
Upon a call to UploadAndReset, the content already written to the
 file is upload to the server and the object implementing the function
ResetAfterMerge (like TTree) are reset.
The parallel file merger will then collate the information coming
from this client and any other client in to the file described by
the filename of this object.

Function Members (Methods)

public:
virtual~TParallelMergingFile()
voidTObject::AbstractMethod(const char* method) const
virtual voidTDirectoryFile::Add(TObject* obj, Bool_t replace = kFALSE)
static voidTDirectory::AddDirectory(Bool_t add = kTRUE)
static Bool_tTDirectory::AddDirectoryStatus()
virtual voidTDirectoryFile::Append(TObject* obj, Bool_t replace = kFALSE)
virtual Int_tTDirectoryFile::AppendKey(TKey* key)
virtual voidTObject::AppendPad(Option_t* option = "")
static TFileOpenHandle*TFile::AsyncOpen(const char* name, Option_t* option = "", const char* ftitle = "", Int_t compress = 1, Int_t netopt = 0)
virtual voidTDirectoryFile::Browse(TBrowser* b)
virtual voidTDirectoryFile::Build(TFile* motherFile = 0, TDirectory* motherDir = 0)
virtual Bool_tTDirectoryFile::cd(const char* path = 0)
static Bool_tTDirectory::Cd(const char* path)
static TClass*Class()
virtual const char*TObject::ClassName() const
virtual voidTDirectory::Clear(Option_t* option = "")
virtual TObject*TNamed::Clone(const char* newname = "") const
virtual TObject*TDirectoryFile::CloneObject(const TObject* obj, Bool_t autoadd = kTRUE)
virtual voidClose(Option_t* option = "")
virtual Int_tTNamed::Compare(const TObject* obj) const
virtual voidTFile::Copy(TObject&) const
virtual voidTMemFile::CopyTo(TBuffer& tobuf) const
virtual Long64_tTMemFile::CopyTo(void* to, Long64_t maxsize) const
virtual Bool_tTFile::Cp(const char* dst, Bool_t progressbar = kTRUE, UInt_t buffersize = 1000000)
static Bool_tTFile::Cp(const char* src, const char* dst, Bool_t progressbar = kTRUE, UInt_t buffersize = 1000000)
virtual TKey*TFile::CreateKey(TDirectory* mother, const TObject* obj, const char* name, Int_t bufsize)
virtual TKey*TFile::CreateKey(TDirectory* mother, const void* obj, const TClass* cl, const char* name, Int_t bufsize)
static TDirectory*&TDirectory::CurrentDirectory()
static TFile*&TFile::CurrentFile()
static voidTDirectory::DecodeNameCycle(const char* namecycle, char* name, Short_t& cycle, const size_t namesize = 0)
virtual voidTFile::Delete(const char* namecycle = "")
virtual voidTDirectory::DeleteAll(Option_t* option = "")
virtual Int_tTObject::DistancetoPrimitive(Int_t px, Int_t py)
virtual voidTFile::Draw(Option_t* option = "")
virtual voidTObject::DrawClass() constMENU
virtual TObject*TObject::DrawClone(Option_t* option = "") constMENU
virtual voidTFile::DrawMap(const char* keys = "*", Option_t* option = "")MENU
virtual voidTObject::Dump() constMENU
static voidTDirectory::EncodeNameCycle(char* buffer, const char* name, Short_t cycle)
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 voidTFile::FillBuffer(char*& buffer)
virtual TKey*TDirectoryFile::FindKey(const char* keyname) const
virtual TKey*TDirectoryFile::FindKeyAny(const char* keyname) const
virtual TObject*TDirectory::FindObject(const char* name) const
virtual TObject*TDirectory::FindObject(const TObject* obj) const
virtual TObject*TDirectoryFile::FindObjectAny(const char* name) const
virtual TObject*TDirectoryFile::FindObjectAnyFile(const char* name) const
virtual voidTFile::Flush()
virtual TObject*TDirectoryFile::Get(const char* namecycle)
TArchiveFile*TFile::GetArchive() const
Long64_tTFile::GetArchiveOffset() const
static TFile::EAsyncOpenStatusTFile::GetAsyncOpenStatus(const char* name)
static TFile::EAsyncOpenStatusTFile::GetAsyncOpenStatus(TFileOpenHandle* handle)
Int_tTFile::GetBestBuffer() const
virtual Int_tTDirectoryFile::GetBufferSize() const
virtual Long64_tTFile::GetBytesRead() const
virtual Long64_tTFile::GetBytesReadExtra() const
virtual Int_tTFile::GetBytesToPrefetch() const
virtual Long64_tTFile::GetBytesWritten() const
static const char*TFile::GetCacheFileDir()
TFileCacheRead*TFile::GetCacheRead(TObject* tree = 0) const
TFileCacheWrite*TFile::GetCacheWrite() const
TArrayC*TFile::GetClassIndex() const
Int_tTFile::GetCompressionAlgorithm() const
Float_tTFile::GetCompressionFactor()
Int_tTFile::GetCompressionLevel() const
Int_tTFile::GetCompressionSettings() const
const TDatime&TDirectoryFile::GetCreationDate() const
virtual TDirectory*TDirectoryFile::GetDirectory(const char* apath, Bool_t printError = false, const char* funcname = "GetDirectory")
virtual Option_t*TObject::GetDrawOption() const
static Long_tTObject::GetDtorOnly()
virtual Long64_tTFile::GetEND() const
virtual const TUrl*TFile::GetEndpointUrl() const
static const TUrl*TFile::GetEndpointUrl(const char* name)
virtual Int_tTFile::GetErrno() const
Int_tTFile::GetFd() const
virtual TFile*TDirectoryFile::GetFile() const
static Long64_tTFile::GetFileBytesRead()
static Long64_tTFile::GetFileBytesWritten()
static Long64_tTFile::GetFileCounter()
static Int_tTFile::GetFileReadCalls()
virtual const char*TObject::GetIconName() const
virtual TKey*TDirectoryFile::GetKey(const char* name, Short_t cycle = 9999) const
virtual TList*TDirectory::GetList() const
TList*TFile::GetListOfFree() const
virtual TList*TDirectoryFile::GetListOfKeys() const
TObjArray*TFile::GetListOfProcessIDs() const
const TDatime&TDirectoryFile::GetModificationDate() const
virtual TObject*TDirectory::GetMother() const
virtual TDirectory*TDirectory::GetMotherDir() const
virtual const char*TNamed::GetName() const
virtual Int_tTFile::GetNbytesFree() const
virtual Int_tTFile::GetNbytesInfo() const
virtual Int_tTDirectoryFile::GetNbytesKeys() const
virtual TStringTFile::GetNewUrl()
virtual Int_tTFile::GetNfree() const
virtual Int_tTDirectoryFile::GetNkeys() const
virtual Int_tTFile::GetNProcessIDs() const
virtual void*TDirectoryFile::GetObjectChecked(const char* namecycle, const char* classname)
virtual void*TDirectoryFile::GetObjectChecked(const char* namecycle, const TClass* cl)
virtual char*TObject::GetObjectInfo(Int_t px, Int_t py) const
static Bool_tTObject::GetObjectStat()
virtual void*TDirectoryFile::GetObjectUnchecked(const char* namecycle)
static Bool_tTFile::GetOnlyStaged()
static UInt_tTFile::GetOpenTimeout()
virtual Option_t*TFile::GetOption() const
virtual const char*TDirectory::GetPath() const
virtual const char*TDirectory::GetPathStatic() const
static Int_tTFile::GetReadaheadSize()
virtual Int_tTFile::GetReadCalls() const
static Bool_tTFile::GetReadStreamerInfo()
Int_tTFile::GetRecordHeader(char* buf, Long64_t first, Int_t maxbytes, Int_t& nbytes, Int_t& objlen, Int_t& keylen)
Long64_tTFile::GetRelOffset() const
virtual Long64_tTDirectoryFile::GetSeekDir() const
virtual Long64_tTFile::GetSeekFree() const
virtual Long64_tTFile::GetSeekInfo() const
virtual Long64_tTDirectoryFile::GetSeekKeys() const
virtual Long64_tTDirectoryFile::GetSeekParent() const
virtual Long64_tTMemFile::GetSize() const
const TList*TFile::GetStreamerInfoCache()
virtual TList*TFile::GetStreamerInfoList()
virtual const char*TNamed::GetTitle() const
static TFile::EFileTypeTFile::GetType(const char* name, Option_t* option = "", TString* prefix = 0)
virtual UInt_tTObject::GetUniqueID() const
TUUIDTDirectory::GetUUID() const
Int_tTFile::GetVersion() const
virtual Bool_tTObject::HandleTimer(TTimer* timer)
virtual ULong_tTNamed::Hash() const
static voidTFile::IncrementFileCounter()
virtual voidTFile::IncrementProcessIDs()
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_tTFile::IsArchive() const
Bool_tTFile::IsBinary() const
virtual Bool_tTObject::IsEqual(const TObject* obj) const
virtual Bool_tTDirectory::IsFolder() const
virtual Bool_tTDirectoryFile::IsModified() const
Bool_tTObject::IsOnHeap() const
virtual Bool_tTFile::IsOpen() const
Bool_tTFile::IsRaw() const
virtual Bool_tTNamed::IsSortable() const
virtual Bool_tTDirectoryFile::IsWritable() const
Bool_tTObject::IsZombie() const
virtual voidTFile::ls(Option_t* option = "") const
virtual voidTFile::MakeFree(Long64_t first, Long64_t last)
virtual voidTFile::MakeProject(const char* dirname, const char* classes = "*", Option_t* option = "new")MENU
virtual voidTFile::Map()MENU
virtual Bool_tTFile::Matches(const char* name)
voidTObject::MayNotUse(const char* method) const
virtual TDirectory*TDirectoryFile::mkdir(const char* name, const char* title = "")
virtual Bool_tTFile::MustFlush() const
virtual Bool_tTObject::Notify()
voidTObject::Obsolete(const char* method, const char* asOfVers, const char* removedFromVers) const
static TFile*TFile::Open(TFileOpenHandle* handle)
static TFile*TFile::Open(const char* name, Option_t* option = "", const char* ftitle = "", Int_t compress = 1, Int_t netopt = 0)
virtual TFile*TDirectoryFile::OpenFile(const char* name, Option_t* option = "", const char* ftitle = "", Int_t compress = 1, Int_t netopt = 0)
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)
TParallelMergingFile&operator=(const TParallelMergingFile&)
virtual voidTFile::Paint(Option_t* option = "")
virtual voidTObject::Pop()
virtual voidTMemFile::Print(Option_t* option = "") const
virtual voidTDirectoryFile::Purge(Short_t nkeep = 1)
virtual voidTDirectory::pwd() const
virtual Int_tTObject::Read(const char* name)
virtual voidTDirectoryFile::ReadAll(Option_t* option = "")
virtual Bool_tTFile::ReadBuffer(char* buf, Int_t len)
virtual Bool_tTFile::ReadBuffer(char* buf, Long64_t pos, Int_t len)
virtual Bool_tTFile::ReadBufferAsync(Long64_t offs, Int_t len)
virtual Bool_tTFile::ReadBuffers(char* buf, Long64_t* pos, Int_t* len, Int_t nbuf)
virtual voidTFile::ReadFree()
virtual Int_tTDirectoryFile::ReadKeys(Bool_t forceRead = kTRUE)
virtual TProcessID*TFile::ReadProcessID(UShort_t pidf)
virtual voidTFile::ReadStreamerInfo()
virtual Int_tTDirectoryFile::ReadTObject(TObject* obj, const char* keyname)
virtual Int_tTFile::Recover()
virtual voidTDirectory::RecursiveRemove(TObject* obj)
virtual TObject*TDirectory::Remove(TObject*)
virtual Int_tTFile::ReOpen(Option_t* mode)
virtual voidTMemFile::ResetAfterMerge(TFileMergeInfo*)
voidTObject::ResetBit(UInt_t f)
virtual voidTMemFile::ResetErrno() const
virtual voidTDirectoryFile::rmdir(const char* name)
virtual voidTDirectoryFile::Save()
virtual voidTObject::SaveAs(const char* filename = "", Option_t* option = "") constMENU
virtual Int_tTDirectoryFile::SaveObjectAs(const TObject* obj, const char* filename = "", Option_t* option = "") const
virtual voidTObject::SavePrimitive(ostream& out, Option_t* option = "")
virtual voidTDirectoryFile::SaveSelf(Bool_t force = kFALSE)
virtual voidTFile::Seek(Long64_t offset, TFile::ERelativeTo pos = kBeg)
voidTObject::SetBit(UInt_t f)
voidTObject::SetBit(UInt_t f, Bool_t set)
virtual voidTDirectoryFile::SetBufferSize(Int_t bufsize)
static Bool_tTFile::SetCacheFileDir(const char* cacheDir, Bool_t operateDisconnected = kTRUE, Bool_t forceCacheread = kFALSE)
virtual voidTFile::SetCacheRead(TFileCacheRead* cache, TObject* tree = 0, TFile::ECacheAction action = kDisconnect)
virtual voidTFile::SetCacheWrite(TFileCacheWrite* cache)
virtual voidTFile::SetCompressionAlgorithm(Int_t algorithm = 0)
virtual voidTFile::SetCompressionLevel(Int_t level = 1)
virtual voidTFile::SetCompressionSettings(Int_t settings = 1)
virtual voidTObject::SetDrawOption(Option_t* option = "")MENU
static voidTObject::SetDtorOnly(void* obj)
virtual voidTFile::SetEND(Long64_t last)
static voidTFile::SetFileBytesRead(Long64_t bytes = 0)
static voidTFile::SetFileBytesWritten(Long64_t bytes = 0)
static voidTFile::SetFileReadCalls(Int_t readcalls = 0)
virtual voidTDirectoryFile::SetModified()
virtual voidTDirectory::SetMother(TObject* mother)
virtual voidTDirectory::SetName(const char* newname)
virtual voidTNamed::SetNameTitle(const char* name, const char* title)
static voidTObject::SetObjectStat(Bool_t stat)
virtual voidTFile::SetOffset(Long64_t offset, TFile::ERelativeTo pos = kBeg)
static Bool_tTFile::SetOnlyStaged(Bool_t onlystaged)
static UInt_tTFile::SetOpenTimeout(UInt_t timeout)
virtual voidTFile::SetOption(Option_t* option = ">")
static voidTFile::SetReadaheadSize(Int_t bufsize = 256000)
virtual voidTFile::SetReadCalls(Int_t readcalls = 0)
static voidTFile::SetReadStreamerInfo(Bool_t readinfo = kTRUE)
virtual voidTDirectoryFile::SetSeekDir(Long64_t v)
virtual voidTNamed::SetTitle(const char* title = "")MENU
virtual voidTDirectoryFile::SetTRefAction(TObject* ref, TObject* parent)
virtual voidTObject::SetUniqueID(UInt_t uid)
virtual voidTDirectoryFile::SetWritable(Bool_t writable = kTRUE)
virtual voidShowMembers(TMemberInspector& insp) const
virtual voidTFile::ShowStreamerInfo()
static Bool_tTFile::ShrinkCacheFileDir(Long64_t shrinkSize, Long_t cleanupInteval = 0)
virtual Int_tTFile::Sizeof() const
virtual voidStreamer(TBuffer&)
voidStreamerNVirtual(TBuffer& ClassDef_StreamerNVirtual_b)
voidTFile::SumBuffer(Int_t bufsize)
virtual voidTObject::SysError(const char* method, const char* msgfmt) const
Bool_tTObject::TestBit(UInt_t f) const
Int_tTObject::TestBits(UInt_t f) const
TParallelMergingFile(const TParallelMergingFile&)
TParallelMergingFile(const char* filename, Option_t* option = "", const char* ftitle = "", Int_t compress = 1)
Bool_tUploadAndReset()
virtual voidTObject::UseCurrentStyle()
virtual voidTObject::Warning(const char* method, const char* msgfmt) const
virtual Int_tWrite(const char* name = 0, Int_t opt = 0, Int_t bufsiz = 0)
virtual Int_tWrite(const char* name = 0, Int_t opt = 0, Int_t bufsiz = 0) const
virtual Bool_tTFile::WriteBuffer(const char* buf, Int_t len)
virtual voidTDirectoryFile::WriteDirHeader()
virtual voidTFile::WriteFree()
virtual voidTFile::WriteHeader()
virtual voidTDirectoryFile::WriteKeys()
virtual Int_tTDirectoryFile::WriteObjectAny(const void* obj, const char* classname, const char* name, Option_t* option = "", Int_t bufsize = 0)
virtual Int_tTDirectoryFile::WriteObjectAny(const void* obj, const TClass* cl, const char* name, Option_t* option = "", Int_t bufsize = 0)
virtual UShort_tTFile::WriteProcessID(TProcessID* pid)
virtual voidWriteStreamerInfo()
virtual Int_tTDirectoryFile::WriteTObject(const TObject* obj, const char* name = 0, Option_t* option = "", Int_t bufsize = 0)
protected:
Bool_tTDirectory::cd1(const char* path)
static Bool_tTDirectory::Cd1(const char* path)
virtual voidTDirectoryFile::CleanTargets()
virtual Long64_tTFile::DirCreateEntry(TDirectory*)
virtual Int_tTFile::DirReadKeys(TDirectory*)
virtual voidTFile::DirWriteHeader(TDirectory*)
virtual voidTFile::DirWriteKeys(TDirectory*)
virtual voidTObject::DoError(int level, const char* location, const char* fmt, va_list va) const
voidTDirectory::FillFullPath(TString& buf) const
Bool_tTFile::FlushWriteCache()
virtual TFile::EAsyncOpenStatusTFile::GetAsyncOpenStatus()
virtual voidTFile::Init(Bool_t create)
Int_tTFile::MakeProjectParMake(const char* packname, const char* filename)
Int_tTFile::MakeProjectParProofInf(const char* packname, const char* proofinfdir)
voidTObject::MakeZombie()
Int_tTFile::ReadBufferViaCache(char* buf, Int_t len)
voidTDirectory::RegisterContext(TDirectory::TContext* ctxt)
virtual Int_tTFile::SysClose(Int_t fd)
virtual Int_tTFile::SysOpen(const char* pathname, Int_t flags, UInt_t mode)
virtual Int_tTFile::SysRead(Int_t fd, void* buf, Int_t len)
virtual Long64_tTFile::SysSeek(Int_t fd, Long64_t offset, Int_t whence)
virtual Int_tTFile::SysStat(Int_t fd, Long_t* id, Long64_t* size, Long_t* flags, Long_t* modtime)
virtual Int_tTFile::SysSync(Int_t fd)
virtual Int_tTFile::SysWrite(Int_t fd, const void* buf, Int_t len)
voidTDirectory::UnregisterContext(TDirectory::TContext* ctxt)
Int_tTFile::WriteBufferViaCache(const char* buf, Int_t len)

Data Members

public:
static TFile::EAsyncOpenStatusTFile::kAOSFailure
static TFile::EAsyncOpenStatusTFile::kAOSInProgress
static TFile::EAsyncOpenStatusTFile::kAOSNotAsync
static TFile::EAsyncOpenStatusTFile::kAOSSuccess
static TFile::ERelativeToTFile::kBeg
static TFile::EStatusBitsTFile::kBinaryFile
static TObject::(anonymous)TObject::kBitMask
static TObject::EStatusBitsTObject::kCanDelete
static TObject::EStatusBitsTObject::kCannotPick
static TDirectoryFile::(anonymous)TDirectoryFile::kCloseDirectory
static TFile::ERelativeToTFile::kCur
static TFile::EFileTypeTFile::kDefault
static TFile::EStatusBitsTFile::kDevNull
static TFile::ECacheActionTFile::kDisconnect
static TFile::ECacheActionTFile::kDoNotDisconnect
static TFile::ERelativeToTFile::kEnd
static TFile::EOpenTimeOutTFile::kEternalTimeout
static TFile::EFileTypeTFile::kFile
static TFile::EStatusBitsTFile::kHasReferences
static TObject::EStatusBitsTObject::kHasUUID
static TFile::EOpenTimeOutTFile::kInstantTimeout
static TObject::EStatusBitsTObject::kInvalidObject
static TObject::(anonymous)TObject::kIsOnHeap
static TObject::EStatusBitsTObject::kIsReferenced
static TFile::EFileTypeTFile::kLocal
static TFile::EFileTypeTFile::kMerge
static TObject::EStatusBitsTObject::kMustCleanup
static TFile::EFileTypeTFile::kNet
static TObject::EStatusBitsTObject::kNoContextMenu
static TObject::(anonymous)TObject::kNotDeleted
static TObject::EStatusBitsTObject::kObjInCanvas
static TObject::(anonymous)TObject::kOverwrite
static TFile::EStatusBitsTFile::kRecovered
static TFile::EStatusBitsTFile::kRedirected
static TObject::(anonymous)TObject::kSingleKey
static TFile::(anonymous)TFile::kStartBigFile
static TFile::EFileTypeTFile::kWeb
static TObject::(anonymous)TObject::kWriteDelete
static TFile::EStatusBitsTFile::kWriteError
static TObject::(anonymous)TObject::kZombie
protected:
TArchiveFile*TFile::fArchive!Archive file from which we read this file
Long64_tTFile::fArchiveOffset!Offset at which file starts in archive
TFileOpenHandle*TFile::fAsyncHandle!For proper automatic cleanup
TFile::EAsyncOpenStatusTFile::fAsyncOpenStatus!Status of an asynchronous open request
Long64_tTFile::fBEGINFirst used byte in file
Int_tTDirectoryFile::fBufferSizeDefault buffer size to create new TKeys
Long64_tTFile::fBytesReadNumber of bytes read from this file
Long64_tTFile::fBytesReadExtraNumber of extra bytes (overhead) read by the readahead buffer
Long64_tTFile::fBytesWriteNumber of bytes written to this file
TFileCacheRead*TFile::fCacheRead!Pointer to the read cache (if any)
TMap*TFile::fCacheReadMap!Pointer to the read cache (if any)
TFileCacheWrite*TFile::fCacheWrite!Pointer to the write cache (if any)
TArrayC*TFile::fClassIndex!Index of TStreamerInfo classes written to this file
Int_tTFile::fCompressCompression level and algorithm
TDirectory::TContext*TDirectory::fContext!Pointer to a list of TContext object pointing to this TDirectory
Int_tTFile::fDFile descriptor
TDatimeTDirectoryFile::fDatimeCDate and time when directory is created
TDatimeTDirectoryFile::fDatimeMDate and time of last modification
Long64_tTFile::fENDLast used byte in file
TFile*TDirectoryFile::fFilepointer to current file in memory
TList*TFile::fFreeFree segments linked list table
TList*TFile::fInfoCache!Cached list of the streamer infos in this file
Bool_tTFile::fInitDone!True if the file has been initialized
Bool_tTFile::fIsArchive!True if this is a pure archive file
Bool_tTFile::fIsPcmFile!True if the file is a ROOT pcm file.
Bool_tTFile::fIsRootFile!True is this is a ROOT file, raw file otherwise
TList*TDirectoryFile::fKeysPointer to keys list in memory
TList*TDirectory::fListList of objects in memory
Bool_tTDirectoryFile::fModifiedtrue if directory has been modified
TObject*TDirectory::fMotherpointer to mother of the directory
Bool_tTFile::fMustFlush!True if the file buffers must be flushed
Int_tTFile::fNProcessIDsNumber of TProcessID written to this file
TStringTNamed::fNameobject identifier
Int_tTFile::fNbytesFreeNumber of bytes for free segments structure
Int_tTFile::fNbytesInfoNumber of bytes for StreamerInfo record
Int_tTDirectoryFile::fNbytesKeysNumber of bytes for the keys
Int_tTDirectoryFile::fNbytesNameNumber of bytes in TNamed at creation time
Bool_tTFile::fNoAnchorInName!True if we don't want to force the anchor to be appended to the file name
Long64_tTFile::fOffset!Seek offset cache
TList*TFile::fOpenPhases!Time info about open phases
TStringTFile::fOptionFile options
TStringTDirectory::fPathBuffer!Buffer for GetPath() function
TObjArray*TFile::fProcessIDs!Array of pointers to TProcessIDs
Int_tTFile::fReadCallsNumber of read calls ( not counting the cache calls )
TStringTFile::fRealNameEffective real file name (not original url)
Long64_tTDirectoryFile::fSeekDirLocation of directory on file
Long64_tTFile::fSeekFreeLocation on disk of free segments structure
Long64_tTFile::fSeekInfoLocation on disk of StreamerInfo record
Long64_tTDirectoryFile::fSeekKeysLocation of Keys record on file
Long64_tTDirectoryFile::fSeekParentLocation of parent directory on file
Double_tTFile::fSum2BufferSum of squares of buffer sizes of objects written so far
Double_tTFile::fSumBufferSum of buffer sizes of objects written so far
TStringTNamed::fTitleobject title
TUUIDTDirectory::fUUIDUnique identifier
Char_tTFile::fUnitsNumber of bytes for file pointers
TUrlTFile::fUrl!URL of file
Int_tTFile::fVersionFile format version
Bool_tTDirectoryFile::fWritabletrue if directory is writable
Int_tTFile::fWrittenNumber of objects written so far
static Bool_tTDirectory::fgAddDirectory!flag to add histograms, graphs,etc to the directory
static TList*TFile::fgAsyncOpenRequestsList of handles for pending open requests
static atomic<Long64_t>TFile::fgBytesReadNumber of bytes read by all TFile objects
static atomic<Long64_t>TFile::fgBytesWriteNumber of bytes written by all TFile objects
static TStringTFile::fgCacheFileDirDirectory where to locally stage files
static Bool_tTFile::fgCacheFileDisconnectedIndicates, we trust in the files in the cache dir without stat on the cached file
static Bool_tTFile::fgCacheFileForceIndicates, to force all READ to CACHEREAD
static atomic<Long64_t>TFile::fgFileCounterCounter for all opened files
static Bool_tTFile::fgOnlyStagedBefore the file is opened, it is checked, that the file is staged, if not, the open fails
static UInt_tTFile::fgOpenTimeoutTimeout for open operations in ms - 0 corresponds to blocking i/o
static atomic<Int_t>TFile::fgReadCallsNumber of bytes read from all TFile objects
static Bool_tTFile::fgReadInfoif true (default) ReadStreamerInfo is called when opening a file
static Int_tTFile::fgReadaheadSizeReadahead buffer size
private:
TArrayC*fClassSentRecord which StreamerInfo we already sent.
TMessagefMessage
Int_tfServerIdxIndex of this socket/file on the server.
TUrlfServerLocationUrl of the server.
Int_tfServerVersionProtocol version used by the server.
TSocket*fSocketSocket to the parallel file merger server.

Class Charts

Inheritance Inherited Members Includes Libraries
Class Charts

Function documentation

TParallelMergingFile(const char* filename, Option_t* option = "", const char* ftitle = "", Int_t compress = 1)
 Constructor.
 We do no yet open any connection to the server.  This will be done at the
 time the first upload will be requested.
~TParallelMergingFile()
 Destructor.
void Close(Option_t* option = "")
Bool_t UploadAndReset()
 Upload the current file data to the merging server.
 Reset the file and return true in case of success.
Int_t Write(const char* name = 0, Int_t opt = 0, Int_t bufsiz = 0)
 Write memory objects to this file and upload them to the parallel merge server.
 Then reset all the resetable object (those with a ResetAfterMerge routine,
 like TTree).

 Loop on all objects in memory (including subdirectories).
 A new key is created in the KEYS linked list for each object.
 The list of keys is then saved on the file (via WriteKeys)
 as a single data record.
 For values of opt see TObject::Write().
 The directory header info is rewritten on the directory header record.
 The linked list of FREE segments is written.
 The file header is written (bytes 1->fBEGIN).
Int_t Write(const char* name = 0, Int_t opt = 0, Int_t bufsiz = 0) const
 One can not save a const TDirectory object.
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. See class TStreamerInfo.
TParallelMergingFile(const char* filename, Option_t* option = "", const char* ftitle = "", Int_t compress = 1)