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TMessage Class Reference

Definition at line 32 of file TMessage.h.

Public Member Functions

 TMessage (UInt_t what=kMESS_ANY, Int_t bufsiz=TBuffer::kInitialSize)
 Create a TMessage object for storing objects. More...
 
virtual ~TMessage ()
 Clean up compression buffer. More...
 
char * CompBuffer () const
 
Int_t CompLength () const
 
Int_t Compress ()
 Compress the message. More...
 
void EnableSchemaEvolution (Bool_t enable=kTRUE)
 
void ForceWriteInfo (TVirtualStreamerInfo *info, Bool_t force)
 Force writing the TStreamerInfo to the message. More...
 
void Forward ()
 Change a buffer that was received into one that can be send, i.e. More...
 
TClassGetClass () const
 
Int_t GetCompressionAlgorithm () const
 
Int_t GetCompressionLevel () const
 
Int_t GetCompressionSettings () const
 
TListGetStreamerInfos () const
 
void Reset ()
 Reset the message buffer so we can use (i.e. fill) it again. More...
 
void Reset (UInt_t what)
 
void SetCompressionAlgorithm (Int_t algorithm=0)
 
void SetCompressionLevel (Int_t level=1)
 
void SetCompressionSettings (Int_t settings=1)
 
void SetWhat (UInt_t what)
 Using this method one can change the message type a-posteriory. More...
 
void TagStreamerInfo (TVirtualStreamerInfo *info)
 Remember that the StreamerInfo is being used in writing. More...
 
Int_t Uncompress ()
 Uncompress the message. More...
 
Bool_t UsesSchemaEvolution () const
 
UInt_t What () const
 
void WriteObject (const TObject *obj)
 Write object to message buffer. More...
 
UShort_t WriteProcessID (TProcessID *pid)
 Check if the ProcessID pid is already in the message. More...
 
- Public Member Functions inherited from TBufferFile
 TBufferFile (TBuffer::EMode mode)
 Create an I/O buffer object. More...
 
 TBufferFile (TBuffer::EMode mode, Int_t bufsiz)
 Create an I/O buffer object. More...
 
 TBufferFile (TBuffer::EMode mode, Int_t bufsiz, void *buf, Bool_t adopt=kTRUE, ReAllocCharFun_t reallocfunc=0)
 Create an I/O buffer object. More...
 
virtual ~TBufferFile ()
 Delete an I/O buffer object. More...
 
Int_t ApplySequence (const TStreamerInfoActions::TActionSequence &sequence, void *object)
 Read one collection of objects from the buffer using the StreamerInfoLoopAction. More...
 
Int_t ApplySequence (const TStreamerInfoActions::TActionSequence &sequence, void *start_collection, void *end_collection)
 Read one collection of objects from the buffer using the StreamerInfoLoopAction. More...
 
Int_t ApplySequenceVecPtr (const TStreamerInfoActions::TActionSequence &sequence, void *start_collection, void *end_collection)
 Read one collection of objects from the buffer using the StreamerInfoLoopAction. More...
 
virtual Int_t CheckByteCount (UInt_t startpos, UInt_t bcnt, const TClass *clss)
 Check byte count with current buffer position. More...
 
virtual Int_t CheckByteCount (UInt_t startpos, UInt_t bcnt, const char *classname)
 Check byte count with current buffer position. More...
 
Bool_t CheckObject (const TObject *obj)
 Check if the specified object is already in the buffer. More...
 
Bool_t CheckObject (const void *obj, const TClass *ptrClass)
 Check if the specified object of the specified class is already in the buffer. More...
 
virtual void ClassBegin (const TClass *, Version_t=-1)
 
virtual void ClassEnd (const TClass *)
 
virtual void ClassMember (const char *, const char *=0, Int_t=-1, Int_t=-1)
 
virtual void DecrementLevel (TVirtualStreamerInfo *)
 Decrement level. More...
 
virtual void ForceWriteInfoClones (TClonesArray *a)
 Make sure TStreamerInfo is not optimized, otherwise it will not be possible to support schema evolution in read mode. More...
 
Int_t GetBufferDisplacement () const
 
TVirtualStreamerInfoGetInfo ()
 
virtual TProcessIDGetLastProcessID (TRefTable *reftable) const
 Return the last TProcessID in the file. More...
 
Int_t GetMapCount () const
 
void GetMappedObject (UInt_t tag, void *&ptr, TClass *&ClassPtr) const
 Retrieve the object stored in the buffer's object map at 'tag' Set ptr and ClassPtr respectively to the address of the object and a pointer to its TClass. More...
 
UShort_t GetPidOffset () const
 
virtual UInt_t GetTRefExecId ()
 Return the exec id stored in the current TStreamerInfo element. More...
 
virtual Int_t GetVersionOwner () const
 Return the version number of the owner file. More...
 
virtual void IncrementLevel (TVirtualStreamerInfo *info)
 Increment level. More...
 
void InitMap ()
 Create the fMap container and initialize them with the null object. More...
 
void MapObject (const TObject *obj, UInt_t offset=1)
 Add object to the fMap container. More...
 
void MapObject (const void *obj, const TClass *cl, UInt_t offset=1)
 Add object to the fMap container. More...
 
virtual Int_t ReadArray (Bool_t *&b)
 Read array of bools from the I/O buffer. More...
 
virtual Int_t ReadArray (Char_t *&c)
 Read array of characters from the I/O buffer. More...
 
virtual Int_t ReadArray (UChar_t *&c)
 
virtual Int_t ReadArray (Short_t *&h)
 Read array of shorts from the I/O buffer. More...
 
virtual Int_t ReadArray (UShort_t *&h)
 
virtual Int_t ReadArray (Int_t *&i)
 Read array of ints from the I/O buffer. More...
 
virtual Int_t ReadArray (UInt_t *&i)
 
virtual Int_t ReadArray (Long_t *&l)
 Read array of longs from the I/O buffer. More...
 
virtual Int_t ReadArray (ULong_t *&l)
 
virtual Int_t ReadArray (Long64_t *&l)
 Read array of long longs from the I/O buffer. More...
 
virtual Int_t ReadArray (ULong64_t *&l)
 
virtual Int_t ReadArray (Float_t *&f)
 Read array of floats from the I/O buffer. More...
 
virtual Int_t ReadArray (Double_t *&d)
 Read array of doubles from the I/O buffer. More...
 
virtual Int_t ReadArrayDouble32 (Double_t *&d, TStreamerElement *ele=0)
 Read array of doubles (written as float) from the I/O buffer. More...
 
virtual Int_t ReadArrayFloat16 (Float_t *&f, TStreamerElement *ele=0)
 Read array of floats (written as truncated float) from the I/O buffer. More...
 
virtual void ReadBool (Bool_t &b)
 
virtual Int_t ReadBuf (void *buf, Int_t max)
 Read max bytes from the I/O buffer into buf. More...
 
virtual void ReadChar (Char_t &c)
 
virtual void ReadCharP (Char_t *c)
 
virtual void ReadCharStar (char *&s)
 Read char* from TBuffer. More...
 
virtual TClassReadClass (const TClass *cl=0, UInt_t *objTag=0)
 Read class definition from I/O buffer. More...
 
virtual Int_t ReadClassBuffer (const TClass *cl, void *pointer, const TClass *onfile_class)
 Deserialize information from a buffer into an object. More...
 
virtual Int_t ReadClassBuffer (const TClass *cl, void *pointer, Int_t version, UInt_t start, UInt_t count, const TClass *onfile_class)
 Deserialize information from a buffer into an object. More...
 
virtual Int_t ReadClassEmulated (const TClass *cl, void *object, const TClass *onfile_class)
 Read emulated class. More...
 
virtual Int_t ReadClones (TClonesArray *a, Int_t nobjects, Version_t objvers)
 Interface to TStreamerInfo::ReadBufferClones. More...
 
virtual void ReadDouble (Double_t &d)
 
virtual void ReadDouble32 (Double_t *d, TStreamerElement *ele=0)
 Read a Double32_t from the buffer, see comments about Double32_t encoding at TBufferFile::WriteDouble32(). More...
 
virtual void ReadFastArray (Bool_t *b, Int_t n)
 Read array of n bools from the I/O buffer. More...
 
virtual void ReadFastArray (Char_t *c, Int_t n)
 Read array of n characters from the I/O buffer. More...
 
virtual void ReadFastArray (UChar_t *c, Int_t n)
 
virtual void ReadFastArray (Short_t *h, Int_t n)
 Read array of n shorts from the I/O buffer. More...
 
virtual void ReadFastArray (UShort_t *h, Int_t n)
 
virtual void ReadFastArray (Int_t *i, Int_t n)
 Read array of n ints from the I/O buffer. More...
 
virtual void ReadFastArray (UInt_t *i, Int_t n)
 
virtual void ReadFastArray (Long_t *l, Int_t n)
 Read array of n longs from the I/O buffer. More...
 
virtual void ReadFastArray (ULong_t *l, Int_t n)
 
virtual void ReadFastArray (Long64_t *l, Int_t n)
 Read array of n long longs from the I/O buffer. More...
 
virtual void ReadFastArray (ULong64_t *l, Int_t n)
 
virtual void ReadFastArray (Float_t *f, Int_t n)
 Read array of n floats from the I/O buffer. More...
 
virtual void ReadFastArray (Double_t *d, Int_t n)
 Read array of n doubles from the I/O buffer. More...
 
virtual void ReadFastArray (void *start, const TClass *cl, Int_t n=1, TMemberStreamer *s=0, const TClass *onFileClass=0)
 Read an array of 'n' objects from the I/O buffer. More...
 
virtual void ReadFastArray (void **startp, const TClass *cl, Int_t n=1, Bool_t isPreAlloc=kFALSE, TMemberStreamer *s=0, const TClass *onFileClass=0)
 Read an array of 'n' objects from the I/O buffer. More...
 
virtual void ReadFastArrayDouble32 (Double_t *d, Int_t n, TStreamerElement *ele=0)
 Read array of n doubles (written as float) from the I/O buffer. More...
 
virtual void ReadFastArrayFloat16 (Float_t *f, Int_t n, TStreamerElement *ele=0)
 Read array of n floats (written as truncated float) from the I/O buffer. More...
 
virtual void ReadFastArrayString (Char_t *c, Int_t n)
 Read array of n characters from the I/O buffer. More...
 
virtual void ReadFastArrayWithFactor (Float_t *ptr, Int_t n, Double_t factor, Double_t minvalue)
 Read array of n floats (written as truncated float) from the I/O buffer. More...
 
virtual void ReadFastArrayWithFactor (Double_t *ptr, Int_t n, Double_t factor, Double_t minvalue)
 Read array of n doubles (written as float) from the I/O buffer. More...
 
virtual void ReadFastArrayWithNbits (Float_t *ptr, Int_t n, Int_t nbits)
 Read array of n floats (written as truncated float) from the I/O buffer. More...
 
virtual void ReadFastArrayWithNbits (Double_t *ptr, Int_t n, Int_t nbits)
 Read array of n doubles (written as float) from the I/O buffer. More...
 
virtual void ReadFloat (Float_t &f)
 
virtual void ReadFloat16 (Float_t *f, TStreamerElement *ele=0)
 Read a Float16_t from the buffer, see comments about Float16_t encoding at TBufferFile::WriteFloat16(). More...
 
virtual void ReadInt (Int_t &i)
 
virtual void ReadLong (Long_t &l)
 Read Long from TBuffer. More...
 
virtual void ReadLong64 (Long64_t &l)
 
virtual TObjectReadObject (const TClass *cl)
 Read object from I/O buffer. More...
 
virtual voidReadObjectAny (const TClass *cast)
 Read object from I/O buffer. More...
 
virtual TProcessIDReadProcessID (UShort_t pidf)
 The TProcessID with number pidf is read from file. More...
 
virtual void ReadShort (Short_t &s)
 
virtual Int_t ReadStaticArray (Bool_t *b)
 Read array of bools from the I/O buffer. More...
 
virtual Int_t ReadStaticArray (Char_t *c)
 Read array of characters from the I/O buffer. More...
 
virtual Int_t ReadStaticArray (UChar_t *c)
 
virtual Int_t ReadStaticArray (Short_t *h)
 Read array of shorts from the I/O buffer. More...
 
virtual Int_t ReadStaticArray (UShort_t *h)
 
virtual Int_t ReadStaticArray (Int_t *i)
 Read array of ints from the I/O buffer. More...
 
virtual Int_t ReadStaticArray (UInt_t *i)
 
virtual Int_t ReadStaticArray (Long_t *l)
 Read array of longs from the I/O buffer. More...
 
virtual Int_t ReadStaticArray (ULong_t *l)
 
virtual Int_t ReadStaticArray (Long64_t *l)
 Read array of long longs from the I/O buffer. More...
 
virtual Int_t ReadStaticArray (ULong64_t *l)
 
virtual Int_t ReadStaticArray (Float_t *f)
 Read array of floats from the I/O buffer. More...
 
virtual Int_t ReadStaticArray (Double_t *d)
 Read array of doubles from the I/O buffer. More...
 
virtual Int_t ReadStaticArrayDouble32 (Double_t *d, TStreamerElement *ele=0)
 Read array of doubles (written as float) from the I/O buffer. More...
 
virtual Int_t ReadStaticArrayFloat16 (Float_t *f, TStreamerElement *ele=0)
 Read array of floats (written as truncated float) from the I/O buffer. More...
 
virtual void ReadStdString (std::string *s)
 Read std::string from TBuffer. More...
 
virtual char * ReadString (char *s, Int_t max)
 Read string from I/O buffer. More...
 
virtual void ReadTString (TString &s)
 Read TString from TBuffer. More...
 
virtual void ReadUChar (UChar_t &c)
 
virtual void ReadUInt (UInt_t &i)
 
virtual void ReadULong (ULong_t &l)
 
virtual void ReadULong64 (ULong64_t &l)
 
virtual void ReadUShort (UShort_t &s)
 
virtual Version_t ReadVersion (UInt_t *start=0, UInt_t *bcnt=0, const TClass *cl=0)
 Read class version from I/O buffer. More...
 
virtual Version_t ReadVersionForMemberWise (const TClass *cl=0)
 Read class version from I/O buffer. More...
 
virtual Version_t ReadVersionNoCheckSum (UInt_t *start=0, UInt_t *bcnt=0)
 Read class version from I/O buffer, when the caller knows for sure that there is no checksum written/involved. More...
 
virtual void ReadWithFactor (Float_t *ptr, Double_t factor, Double_t minvalue)
 Read a Float16_t from the buffer when the factor and minimum value have been specified see comments about Double32_t encoding at TBufferFile::WriteDouble32(). More...
 
virtual void ReadWithFactor (Double_t *ptr, Double_t factor, Double_t minvalue)
 Read a Double32_t from the buffer when the factor and minimum value have been specified see comments about Double32_t encoding at TBufferFile::WriteDouble32(). More...
 
virtual void ReadWithNbits (Float_t *ptr, Int_t nbits)
 Read a Float16_t from the buffer when the number of bits is specified (explicitly or not) see comments about Float16_t encoding at TBufferFile::WriteFloat16(). More...
 
virtual void ReadWithNbits (Double_t *ptr, Int_t nbits)
 Read a Double32_t from the buffer when the number of bits is specified (explicitly or not) see comments about Double32_t encoding at TBufferFile::WriteDouble32(). More...
 
void ResetMap ()
 Delete existing fMap and reset map counter. More...
 
void SetBufferDisplacement ()
 
void SetBufferDisplacement (Int_t skipped)
 
virtual void SetByteCount (UInt_t cntpos, Bool_t packInVersion=kFALSE)
 Set byte count at position cntpos in the buffer. More...
 
void SetPidOffset (UShort_t offset)
 This offset is used when a key (or basket) is transfered from one file to the other. More...
 
void SetReadParam (Int_t mapsize)
 Set the initial size of the map used to store object and class references during reading. More...
 
virtual void SetStreamerElementNumber (TStreamerElement *, Int_t)
 
void SetWriteParam (Int_t mapsize)
 Set the initial size of the hashtable used to store object and class references during writing. More...
 
virtual void SkipObjectAny ()
 Skip any kind of object from buffer. More...
 
virtual void SkipVersion (const TClass *cl=0)
 Skip class version from I/O buffer. More...
 
virtual void StreamObject (void *obj, const std::type_info &typeinfo, const TClass *onFileClass=0)
 Stream an object given its C++ typeinfo information. More...
 
virtual void StreamObject (void *obj, const char *className, const TClass *onFileClass=0)
 Stream an object given the name of its actual class. More...
 
virtual void StreamObject (void *obj, const TClass *cl, const TClass *onFileClass=0)
 Stream an object given a pointer to its actual class. More...
 
virtual void StreamObject (TObject *obj)
 Stream an object inheriting from TObject using its streamer. More...
 
virtual void WriteArray (const Bool_t *b, Int_t n)
 Write array of n bools into the I/O buffer. More...
 
virtual void WriteArray (const Char_t *c, Int_t n)
 Write array of n characters into the I/O buffer. More...
 
virtual void WriteArray (const UChar_t *c, Int_t n)
 
virtual void WriteArray (const Short_t *h, Int_t n)
 Write array of n shorts into the I/O buffer. More...
 
virtual void WriteArray (const UShort_t *h, Int_t n)
 
virtual void WriteArray (const Int_t *i, Int_t n)
 Write array of n ints into the I/O buffer. More...
 
virtual void WriteArray (const UInt_t *i, Int_t n)
 
virtual void WriteArray (const Long_t *l, Int_t n)
 Write array of n longs into the I/O buffer. More...
 
virtual void WriteArray (const ULong_t *l, Int_t n)
 Write array of n unsigned longs into the I/O buffer. More...
 
virtual void WriteArray (const Long64_t *l, Int_t n)
 Write array of n long longs into the I/O buffer. More...
 
virtual void WriteArray (const ULong64_t *l, Int_t n)
 
virtual void WriteArray (const Float_t *f, Int_t n)
 Write array of n floats into the I/O buffer. More...
 
virtual void WriteArray (const Double_t *d, Int_t n)
 Write array of n doubles into the I/O buffer. More...
 
virtual void WriteArrayDouble32 (const Double_t *d, Int_t n, TStreamerElement *ele=0)
 Write array of n doubles (as float) into the I/O buffer. More...
 
virtual void WriteArrayFloat16 (const Float_t *f, Int_t n, TStreamerElement *ele=0)
 Write array of n floats (as truncated float) into the I/O buffer. More...
 
virtual void WriteBool (Bool_t b)
 
virtual void WriteBuf (const void *buf, Int_t max)
 Write max bytes from buf into the I/O buffer. More...
 
virtual void WriteChar (Char_t c)
 
virtual void WriteCharP (const Char_t *c)
 
virtual void WriteCharStar (char *s)
 Write char* into TBuffer. More...
 
virtual void WriteClass (const TClass *cl)
 Write class description to I/O buffer. More...
 
virtual Int_t WriteClassBuffer (const TClass *cl, void *pointer)
 Function called by the Streamer functions to serialize object at p to buffer b. More...
 
virtual Int_t WriteClones (TClonesArray *a, Int_t nobjects)
 Interface to TStreamerInfo::WriteBufferClones. More...
 
virtual void WriteDouble (Double_t d)
 
virtual void WriteDouble32 (Double_t *d, TStreamerElement *ele=0)
 Write a Double32_t to the buffer. More...
 
virtual void WriteFastArray (const Bool_t *b, Int_t n)
 Write array of n bools into the I/O buffer. More...
 
virtual void WriteFastArray (const Char_t *c, Int_t n)
 Write array of n characters into the I/O buffer. More...
 
virtual void WriteFastArray (const UChar_t *c, Int_t n)
 
virtual void WriteFastArray (const Short_t *h, Int_t n)
 Write array of n shorts into the I/O buffer. More...
 
virtual void WriteFastArray (const UShort_t *h, Int_t n)
 
virtual void WriteFastArray (const Int_t *i, Int_t n)
 Write array of n ints into the I/O buffer. More...
 
virtual void WriteFastArray (const UInt_t *i, Int_t n)
 
virtual void WriteFastArray (const Long_t *l, Int_t n)
 Write array of n longs into the I/O buffer. More...
 
virtual void WriteFastArray (const ULong_t *l, Int_t n)
 Write array of n unsigned longs into the I/O buffer. More...
 
virtual void WriteFastArray (const Long64_t *l, Int_t n)
 Write array of n long longs into the I/O buffer. More...
 
virtual void WriteFastArray (const ULong64_t *l, Int_t n)
 
virtual void WriteFastArray (const Float_t *f, Int_t n)
 Write array of n floats into the I/O buffer. More...
 
virtual void WriteFastArray (const Double_t *d, Int_t n)
 Write array of n doubles into the I/O buffer. More...
 
virtual void WriteFastArray (void *start, const TClass *cl, Int_t n=1, TMemberStreamer *s=0)
 Write an array of object starting at the address 'start' and of length 'n' the objects in the array are assumed to be of class 'cl'. More...
 
virtual Int_t WriteFastArray (void **startp, const TClass *cl, Int_t n=1, Bool_t isPreAlloc=kFALSE, TMemberStreamer *s=0)
 Write an array of object starting at the address '*start' and of length 'n' the objects in the array are of class 'cl' 'isPreAlloc' indicates whether the data member is marked with '->' Return: More...
 
virtual void WriteFastArrayDouble32 (const Double_t *d, Int_t n, TStreamerElement *ele=0)
 Write array of n doubles (as float) into the I/O buffer. More...
 
virtual void WriteFastArrayFloat16 (const Float_t *f, Int_t n, TStreamerElement *ele=0)
 Write array of n floats (as truncated float) into the I/O buffer. More...
 
virtual void WriteFastArrayString (const Char_t *c, Int_t n)
 Write array of n characters into the I/O buffer. More...
 
virtual void WriteFloat (Float_t f)
 
virtual void WriteFloat16 (Float_t *f, TStreamerElement *ele=0)
 Write a Float16_t to the buffer. More...
 
virtual void WriteInt (Int_t i)
 
virtual void WriteLong (Long_t l)
 
virtual void WriteLong64 (Long64_t l)
 
virtual Int_t WriteObjectAny (const void *obj, const TClass *ptrClass)
 Write object to I/O buffer. More...
 
virtual void WriteShort (Short_t s)
 
virtual void WriteStdString (const std::string *s)
 Write std::string to TBuffer. More...
 
virtual void WriteString (const char *s)
 Write string to I/O buffer. More...
 
virtual void WriteTString (const TString &s)
 Write TString to TBuffer. More...
 
virtual void WriteUChar (UChar_t c)
 
virtual void WriteUInt (UInt_t i)
 
virtual void WriteULong (ULong_t l)
 
virtual void WriteULong64 (ULong64_t l)
 
virtual void WriteUShort (UShort_t s)
 
virtual UInt_t WriteVersion (const TClass *cl, Bool_t useBcnt=kFALSE)
 Write class version to I/O buffer. More...
 
virtual UInt_t WriteVersionMemberWise (const TClass *cl, Bool_t useBcnt=kFALSE)
 Write class version to I/O buffer after setting the kStreamedMemberWise bit in the version number. More...
 
- Public Member Functions inherited from TBuffer
 TBuffer (EMode mode)
 Create an I/O buffer object. More...
 
 TBuffer (EMode mode, Int_t bufsiz)
 Create an I/O buffer object. More...
 
 TBuffer (EMode mode, Int_t bufsiz, void *buf, Bool_t adopt=kTRUE, ReAllocCharFun_t reallocfunc=0)
 Create an I/O buffer object. More...
 
virtual ~TBuffer ()
 Delete an I/O buffer object. More...
 
void AutoExpand (Int_t size_needed)
 Automatically calculate a new size and expand the buffer to fit at least size_needed. More...
 
char * Buffer () const
 
Int_t BufferSize () const
 
void DetachBuffer ()
 
void Expand (Int_t newsize, Bool_t copy=kTRUE)
 Expand (or shrink) the I/O buffer to newsize bytes. More...
 
Int_t GetBufferVersion () const
 
TObjectGetParent () const
 Return pointer to parent of this buffer. More...
 
ReAllocCharFun_t GetReAllocFunc () const
 Return the reallocation method currently used. More...
 
Bool_t IsReading () const
 
Bool_t IsWriting () const
 
Int_t Length () const
 
virtual TVirtualArrayPeekDataCache () const
 Return the 'current' data cache area from the list of area to be used for temporarily store 'missing' data members. More...
 
virtual TVirtualArrayPopDataCache ()
 Pop and Return the 'current' data cache area from the list of area to be used for temporarily store 'missing' data members. More...
 
virtual void PushDataCache (TVirtualArray *)
 Push a new data cache area onto the list of area to be used for temporarily store 'missing' data members. More...
 
virtual void ReadStdString (std::string &s)
 
void SetBuffer (void *buf, UInt_t bufsiz=0, Bool_t adopt=kTRUE, ReAllocCharFun_t reallocfunc=0)
 Sets a new buffer in an existing TBuffer object. More...
 
void SetBufferOffset (Int_t offset=0)
 
void SetParent (TObject *parent)
 Set parent owning this buffer. More...
 
void SetReadMode ()
 Set buffer in read mode. More...
 
void SetReAllocFunc (ReAllocCharFun_t reallocfunc=0)
 Set which memory reallocation method to use. More...
 
void SetWriteMode ()
 Set buffer in write mode. More...
 
virtual void WriteStdString (std::string &s)
 
- 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...
 
virtual const char * ClassName () const
 Returns name of class to which the object belongs. More...
 
virtual void Clear (Option_t *="")
 
virtual TObjectClone (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 TObjectDrawClone (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 TObjectFindObject (const char *name) const
 Must be redefined in derived classes. More...
 
virtual TObjectFindObject (const TObject *obj) const
 Must be redefined in derived classes. More...
 
virtual Option_tGetDrawOption () 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_tGetOption () 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...
 
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...
 
Bool_t IsOnHeap () const
 
virtual Bool_t IsSortable () const
 
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...
 
voidoperator new (size_t sz)
 
voidoperator new (size_t sz, void *vp)
 
voidoperator new[] (size_t sz)
 
voidoperator new[] (size_t sz, void *vp)
 
TObjectoperator= (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 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, Bool_t set)
 Set or unset the user status bits as specified in f. More...
 
void SetBit (UInt_t f)
 
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...
 
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...
 

Static Public Member Functions

static void EnableSchemaEvolutionForAll (Bool_t enable=kTRUE)
 Static function enabling or disabling the automatic schema evolution. More...
 
static Bool_t UsesSchemaEvolutionForAll ()
 Static function returning status of global schema evolution. More...
 
- Static Public Member Functions inherited from TBufferFile
static Int_t GetGlobalReadParam ()
 Get default read map size. More...
 
static Int_t GetGlobalWriteParam ()
 Get default write map size. More...
 
static void SetGlobalReadParam (Int_t mapsize)
 Set the initial size of the map used to store object and class references during reading. More...
 
static void SetGlobalWriteParam (Int_t mapsize)
 Set the initial size of the map used to store object and class references during reading. More...
 
- Static Public Member Functions inherited from TBuffer
static TClassGetClass (const std::type_info &typeinfo)
 Forward to TROOT::GetClass(). More...
 
static TClassGetClass (const char *className)
 Forward to TROOT::GetClass(). 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

 TMessage (void *buf, Int_t bufsize)
 Create a TMessage object for reading objects. More...
 
void SetLength () const
 Set the message length at the beginning of the message buffer. More...
 
- Protected Member Functions inherited from TBufferFile
 TBufferFile ()
 
 TBufferFile (const TBufferFile &)
 not implemented More...
 
Int_t CheckByteCount (UInt_t startpos, UInt_t bcnt, const TClass *clss, const char *classname)
 Check byte count with current buffer position. More...
 
void CheckCount (UInt_t offset)
 Check if offset is not too large (< kMaxMapCount) when writing. More...
 
UInt_t CheckObject (UInt_t offset, const TClass *cl, Bool_t readClass=kFALSE)
 Check for object in the read map. More...
 
void operator= (const TBufferFile &)
 not implemented More...
 
virtual void WriteObjectClass (const void *actualObjStart, const TClass *actualClass)
 Write object to I/O buffer. More...
 
- Protected Member Functions inherited from TBuffer
 TBuffer ()
 
 TBuffer (const TBuffer &)
 
void operator= (const TBuffer &)
 
Int_t Read (const char *name)
 Read contents of object with specified name from the current directory. More...
 
Int_t Write (const char *name, Int_t opt, Int_t bufs)
 Write this object to the current directory. More...
 
Int_t Write (const char *name, Int_t opt, Int_t bufs) const
 Write this object to the current directory. 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 Member Functions

 TMessage (const TMessage &)
 
void operator= (const TMessage &)
 
Bool_t TestBitNumber (UInt_t bitnumber) const
 

Private Attributes

TBits fBitsPIDs
 
char * fBufComp
 
char * fBufCompCur
 
TClassfClass
 
char * fCompPos
 
Int_t fCompress
 
Bool_t fEvolution
 
TListfInfos
 
UInt_t fWhat
 

Static Private Attributes

static Bool_t fgEvolution = kFALSE
 

Friends

class TAuthenticate
 
class TPSocket
 
class TSocket
 
class TUDPSocket
 
class TXSocket
 

Additional Inherited Members

- Public Types inherited from TBufferFile
enum  { kMapSize = 503 }
 
enum  { kStreamedMemberWise = BIT(14) }
 
enum  { kNotDecompressed = BIT(15) }
 
enum  { kTextBasedStreaming = BIT(18) }
 
enum  { kUser1 = BIT(21), kUser2 = BIT(22), kUser3 = BIT(23) }
 
- Public Types inherited from TBuffer
enum  { kIsOwner = BIT(16) }
 
enum  { kCannotHandleMemberWiseStreaming = BIT(17) }
 
enum  { kInitialSize = 1024, kMinimalSize = 128 }
 
enum  EMode { kRead = 0, kWrite = 1 }
 
- Public Types inherited from TObject
enum  { kIsOnHeap = 0x01000000, kNotDeleted = 0x02000000, kZombie = 0x04000000, kBitMask = 0x00ffffff }
 
enum  { kSingleKey = BIT(0), kOverwrite = BIT(1), kWriteDelete = BIT(2) }
 
enum  EStatusBits {
  kCanDelete = BIT(0), kMustCleanup = BIT(3), kObjInCanvas = BIT(3), kIsReferenced = BIT(4),
  kHasUUID = BIT(5), kCannotPick = BIT(6), kNoContextMenu = BIT(8), kInvalidObject = BIT(13)
}
 
- Protected Types inherited from TBufferFile
typedef std::vector< TStreamerInfo * > InfoList_t
 
- Protected Types inherited from TBuffer
typedef std::vector< TVirtualArray * > CacheList_t
 
- Protected Attributes inherited from TBufferFile
TExMapfClassMap
 Map containing object,class pairs for reading. More...
 
Int_t fDisplacement
 Value to be added to the map offsets. More...
 
TStreamerInfofInfo
 Pointer to TStreamerInfo object writing/reading the buffer. More...
 
InfoList_t fInfoStack
 Stack of pointers to the TStreamerInfos. More...
 
TExMapfMap
 Map containing object,offset pairs for reading/writing. More...
 
Int_t fMapCount
 Number of objects or classes in map. More...
 
Int_t fMapSize
 Default size of map. More...
 
UShort_t fPidOffset
 Offset to be added to the pid index in this key/buffer. More...
 
- Protected Attributes inherited from TBuffer
char * fBufCur
 
char * fBuffer
 
char * fBufMax
 
Int_t fBufSize
 
CacheList_t fCacheStack
 Realloc function to be used when extending the buffer. More...
 
Bool_t fMode
 
TObjectfParent
 
ReAllocCharFun_t fReAllocFunc
 
Int_t fVersion
 
- Static Protected Attributes inherited from TBufferFile
static Int_t fgMapSize = kMapSize
 Default map size for all TBuffer objects. More...
 

#include <TMessage.h>

Inheritance diagram for TMessage:
[legend]

Constructor & Destructor Documentation

◆ TMessage() [1/3]

TMessage::TMessage ( const TMessage )
private

◆ TMessage() [2/3]

TMessage::TMessage ( void buf,
Int_t  bufsize 
)
protected

Create a TMessage object for reading objects.

The objects will be read from buf. Use the What() method to get the message type.

Definition at line 71 of file TMessage.cxx.

◆ TMessage() [3/3]

TMessage::TMessage ( UInt_t  what = kMESS_ANY,
Int_t  bufsiz = TBuffer::kInitialSize 
)

Create a TMessage object for storing objects.

The "what" integer describes the type of message. Predifined ROOT system message types can be found in MessageTypes.h. Make sure your own message types are unique from the ROOT defined message types (i.e. 0 - 10000 are reserved by ROOT). In case you OR "what" with kMESS_ACK, the message will wait for an acknowledgement from the remote side. This makes the sending process synchronous. In case you OR "what" with kMESS_ZIP, the message will be compressed in TSocket using the zip algorithm (only if message is > 256 bytes).

Definition at line 46 of file TMessage.cxx.

◆ ~TMessage()

TMessage::~TMessage ( )
virtual

Clean up compression buffer.

Definition at line 106 of file TMessage.cxx.

Member Function Documentation

◆ CompBuffer()

char* TMessage::CompBuffer ( ) const
inline

Definition at line 88 of file TMessage.h.

◆ CompLength()

Int_t TMessage::CompLength ( ) const
inline

Definition at line 89 of file TMessage.h.

◆ Compress()

Int_t TMessage::Compress ( )

Compress the message.

The message will only be compressed if the compression level > 0 and the if the message is > 256 bytes. Returns -1 in case of error (when compression fails or when the message increases in size in some pathological cases), otherwise returns 0.

Definition at line 286 of file TMessage.cxx.

◆ EnableSchemaEvolution()

void TMessage::EnableSchemaEvolution ( Bool_t  enable = kTRUE)
inline

Definition at line 77 of file TMessage.h.

◆ EnableSchemaEvolutionForAll()

void TMessage::EnableSchemaEvolutionForAll ( Bool_t  enable = kTRUE)
static

Static function enabling or disabling the automatic schema evolution.

By default schema evolution support is off.

Definition at line 116 of file TMessage.cxx.

◆ ForceWriteInfo()

void TMessage::ForceWriteInfo ( TVirtualStreamerInfo info,
Bool_t  force 
)
virtual

Force writing the TStreamerInfo to the message.

Reimplemented from TBufferFile.

Definition at line 132 of file TMessage.cxx.

◆ Forward()

void TMessage::Forward ( )

Change a buffer that was received into one that can be send, i.e.

forward a just received message.

Definition at line 144 of file TMessage.cxx.

◆ GetClass()

TClass* TMessage::GetClass ( ) const
inline

Definition at line 70 of file TMessage.h.

◆ GetCompressionAlgorithm()

Int_t TMessage::GetCompressionAlgorithm ( ) const
inline

Definition at line 100 of file TMessage.h.

◆ GetCompressionLevel()

Int_t TMessage::GetCompressionLevel ( ) const
inline

Definition at line 106 of file TMessage.h.

◆ GetCompressionSettings()

Int_t TMessage::GetCompressionSettings ( ) const
inline

Definition at line 112 of file TMessage.h.

◆ GetStreamerInfos()

TList* TMessage::GetStreamerInfos ( ) const
inline

Definition at line 79 of file TMessage.h.

◆ operator=()

void TMessage::operator= ( const TMessage )
private

◆ Reset() [1/2]

void TMessage::Reset ( void  )
virtual

Reset the message buffer so we can use (i.e. fill) it again.

Reimplemented from TBufferFile.

Definition at line 171 of file TMessage.cxx.

◆ Reset() [2/2]

void TMessage::Reset ( UInt_t  what)
inline

Definition at line 73 of file TMessage.h.

◆ SetCompressionAlgorithm()

void TMessage::SetCompressionAlgorithm ( Int_t  algorithm = 0)

Definition at line 224 of file TMessage.cxx.

◆ SetCompressionLevel()

void TMessage::SetCompressionLevel ( Int_t  level = 1)

Definition at line 245 of file TMessage.cxx.

◆ SetCompressionSettings()

void TMessage::SetCompressionSettings ( Int_t  settings = 1)

Definition at line 268 of file TMessage.cxx.

◆ SetLength()

void TMessage::SetLength ( ) const
protected

Set the message length at the beginning of the message buffer.

This method is only called by TSocket::Send().

Definition at line 188 of file TMessage.cxx.

◆ SetWhat()

void TMessage::SetWhat ( UInt_t  what)

Using this method one can change the message type a-posteriory.

In case you OR "what" with kMESS_ACK, the message will wait for an acknowledgement from the remote side. This makes the sending process synchronous.

Definition at line 207 of file TMessage.cxx.

◆ TagStreamerInfo()

void TMessage::TagStreamerInfo ( TVirtualStreamerInfo info)
virtual

Remember that the StreamerInfo is being used in writing.

Reimplemented from TBufferFile.

Definition at line 160 of file TMessage.cxx.

◆ TestBitNumber()

Bool_t TMessage::TestBitNumber ( UInt_t  bitnumber) const
inlineprivate

Definition at line 58 of file TMessage.h.

◆ Uncompress()

Int_t TMessage::Uncompress ( )

Uncompress the message.

The message will only be uncompressed when kMESS_ZIP is set. Returns -1 in case of error, 0 otherwise.

Definition at line 365 of file TMessage.cxx.

◆ UsesSchemaEvolution()

Bool_t TMessage::UsesSchemaEvolution ( ) const
inline

Definition at line 78 of file TMessage.h.

◆ UsesSchemaEvolutionForAll()

Bool_t TMessage::UsesSchemaEvolutionForAll ( )
static

Static function returning status of global schema evolution.

Definition at line 124 of file TMessage.cxx.

◆ What()

UInt_t TMessage::What ( ) const
inline

Definition at line 74 of file TMessage.h.

◆ WriteObject()

void TMessage::WriteObject ( const TObject obj)
virtual

Write object to message buffer.

When support for schema evolution is enabled the list of TStreamerInfo used to stream this object is kept in fInfos. This information is used by TSocket::Send that sends this list through the socket. This list is in turn used by TSocket::Recv to store the TStreamerInfo objects in the relevant TClass in case the TClass does not know yet about a particular class version. This feature is implemented to support clients and servers with either different ROOT versions or different user classes versions.

Reimplemented from TBufferFile.

Definition at line 418 of file TMessage.cxx.

◆ WriteProcessID()

UShort_t TMessage::WriteProcessID ( TProcessID pid)
virtual

Check if the ProcessID pid is already in the message.

If not, then:

  • mark bit 0 of fBitsPIDs to indicate that a ProcessID has been found
  • mark bit uid+1 where uid id the uid of the ProcessID

Reimplemented from TBufferFile.

Definition at line 437 of file TMessage.cxx.

Friends And Related Function Documentation

◆ TAuthenticate

friend class TAuthenticate
friend

Definition at line 34 of file TMessage.h.

◆ TPSocket

friend class TPSocket
friend

Definition at line 37 of file TMessage.h.

◆ TSocket

friend class TSocket
friend

Definition at line 35 of file TMessage.h.

◆ TUDPSocket

friend class TUDPSocket
friend

Definition at line 36 of file TMessage.h.

◆ TXSocket

friend class TXSocket
friend

Definition at line 38 of file TMessage.h.

Member Data Documentation

◆ fBitsPIDs

TBits TMessage::fBitsPIDs
private

Definition at line 42 of file TMessage.h.

◆ fBufComp

char* TMessage::fBufComp
private

Definition at line 46 of file TMessage.h.

◆ fBufCompCur

char* TMessage::fBufCompCur
private

Definition at line 47 of file TMessage.h.

◆ fClass

TClass* TMessage::fClass
private

Definition at line 44 of file TMessage.h.

◆ fCompPos

char* TMessage::fCompPos
private

Definition at line 48 of file TMessage.h.

◆ fCompress

Int_t TMessage::fCompress
private

Definition at line 45 of file TMessage.h.

◆ fEvolution

Bool_t TMessage::fEvolution
private

Definition at line 49 of file TMessage.h.

◆ fgEvolution

Bool_t TMessage::fgEvolution = kFALSE
staticprivate

Definition at line 51 of file TMessage.h.

◆ fInfos

TList* TMessage::fInfos
private

Definition at line 41 of file TMessage.h.

◆ fWhat

UInt_t TMessage::fWhat
private

Definition at line 43 of file TMessage.h.


The documentation for this class was generated from the following files: