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Reference Guide
TProcessUUID Class Reference

This class is a specialized TProcessID managing the list of UUIDs.

In addition to TProcessID, this object has the following members:

When a new TUUID is entered into the list fUUIDs, it is assigned the first free slot in the list of bits and the TUUID UUIDNumber is set to this slot number.

When a TUUID is removed from the list, the corresponding bit is reset in fActive.

The object corresponding to a TUUID at slot I can be found via fObjects->At(I).

One can use two mechanisms to find the object corresponding to a TUUID:

  1. the input is the TUUID.AsString. One can find the corresponding TObjString object objs in fUUIDs via THashList::FindObject(name). The slot number is then objs->GetUniqueID().
  2. The input is the UUIDNumber. The slot number is UIUIDNumber

When a TRef points to an object having a TUUID, both the TRef and the referenced object have their bit kHasUUID set. In this case, the pointer TProcessID *fPID in TRef points to the unique object TProcessUUID. The TRef uniqueID is directly the UUIDNumber=slot number.

Definition at line 32 of file TProcessUUID.h.

Public Member Functions

 TProcessUUID ()
 Default constructor. More...
 
virtual ~TProcessUUID ()
 Destructor. More...
 
UInt_t AddUUID (TUUID &uuid, TObject *obj)
 Add uuid to the table of UUIDs The TObject *obj has its uniqueID set to the UUID number return entry number in the table. More...
 
UInt_t AddUUID (const char *uuids)
 Add uuid with name uuids to the table of UUIDs return entry number in the table. More...
 
TObjStringFindUUID (UInt_t number) const
 Find the TObjString by slot number. More...
 
TBitsGetActive () const
 
TListGetUUIDs () const
 
void RemoveUUID (UInt_t number)
 Remove entry number in the list of uuids. More...
 
- Public Member Functions inherited from TProcessID
 TProcessID ()
 Default constructor. More...
 
virtual ~TProcessID ()
 Destructor. More...
 
void CheckInit ()
 Initialize fObjects. More...
 
virtual void Clear (Option_t *option="")
 delete the TObjArray pointing to referenced objects this function is called by TFile::Close("R") More...
 
Int_t DecrementCount ()
 The reference fCount is used to delete the TProcessID in the TFile destructor when fCount = 0. More...
 
Int_t GetCount () const
 
TObjArrayGetObjects () const
 
TObjectGetObjectWithID (UInt_t uid)
 returns the TObject with unique identifier uid in the table of objects More...
 
Int_t IncrementCount ()
 Increase the reference count to this object. More...
 
void PutObjectWithID (TObject *obj, UInt_t uid=0)
 stores the object at the uid th slot in the table of objects The object uniqued is set as well as its kMustCleanup bit More...
 
virtual void RecursiveRemove (TObject *obj)
 called by the object destructor remove reference to obj from the current table if it is referenced More...
 
- Public Member Functions inherited from TNamed
 TNamed ()
 
 TNamed (const char *name, const char *title)
 
 TNamed (const TString &name, const TString &title)
 
 TNamed (const TNamed &named)
 TNamed copy ctor. More...
 
virtual ~TNamed ()
 TNamed destructor. More...
 
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 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...
 
TNamedoperator= (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 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 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 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...
 
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
 
R__ALWAYS_INLINE Bool_t IsZombie () const
 
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 Int_t Read (const char *name)
 Read contents of object with specified name from the current directory. 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...
 
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...
 

Protected Attributes

TBitsfActive
 
TListfUUIDs
 
- Protected Attributes inherited from TProcessID
std::atomic_int fCount
 
std::atomic_flag fLock
 Array pointing to the referenced objects. More...
 
ROOT::Internal::TAtomicPointer< TObjArray * > fObjects
 Reference count to this object (from TFile) More...
 
- Protected Attributes inherited from TNamed
TString fName
 
TString fTitle
 

Private Member Functions

 TProcessUUID (const TProcessID &)
 
TProcessUUIDoperator= (const TProcessUUID &)
 

Additional Inherited Members

- 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 Public Member Functions inherited from TProcessID
static TProcessIDAddProcessID ()
 Static function to add a new TProcessID to the list of PIDs. More...
 
static UInt_t AssignID (TObject *obj)
 static function returning the ID assigned to obj If the object is not yet referenced, its kIsReferenced bit is set and its fUniqueID set to the current number of referenced objects so far. More...
 
static void Cleanup ()
 static function (called by TROOT destructor) to delete all TProcessIDs More...
 
static UInt_t GetNProcessIDs ()
 Return the (static) number of process IDs. More...
 
static UInt_t GetObjectCount ()
 Return the current referenced object count fgNumber is incremented every time a new object is referenced. More...
 
static TProcessIDGetPID ()
 static: returns pointer to current TProcessID More...
 
static TObjArrayGetPIDs ()
 static: returns array of TProcessIDs More...
 
static TProcessIDGetProcessID (UShort_t pid)
 static function returning a pointer to TProcessID number pid in fgPIDs More...
 
static TProcessIDGetProcessWithUID (const TObject *obj)
 static function returning a pointer to TProcessID with its pid encoded in the highest byte of obj->GetUniqueID() More...
 
static TProcessIDGetProcessWithUID (UInt_t uid, const void *obj)
 static function returning a pointer to TProcessID with its pid encoded in the highest byte of uid More...
 
static TProcessIDGetSessionProcessID ()
 static function returning the pointer to the session TProcessID More...
 
static Bool_t IsValid (TProcessID *pid)
 static function. return kTRUE if pid is a valid TProcessID More...
 
static void SetObjectCount (UInt_t number)
 static function to set the current referenced object count fgNumber is incremented every time a new object is referenced 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 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 ()
 
- Static Protected Attributes inherited from TProcessID
static std::atomic_uint fgNumber
 
static TExMapfgObjPIDs = 0
 
static TProcessIDfgPID = 0
 Spin lock for initialization of fObjects. More...
 
static TObjArrayfgPIDs = 0
 

#include <TProcessUUID.h>

Inheritance diagram for TProcessUUID:
[legend]

Constructor & Destructor Documentation

◆ TProcessUUID() [1/2]

TProcessUUID::TProcessUUID ( const TProcessID )
private

◆ TProcessUUID() [2/2]

TProcessUUID::TProcessUUID ( )

Default constructor.

Definition at line 56 of file TProcessUUID.cxx.

◆ ~TProcessUUID()

TProcessUUID::~TProcessUUID ( )
virtual

Destructor.

Definition at line 66 of file TProcessUUID.cxx.

Member Function Documentation

◆ AddUUID() [1/2]

UInt_t TProcessUUID::AddUUID ( TUUID uuid,
TObject obj 
)

Add uuid to the table of UUIDs The TObject *obj has its uniqueID set to the UUID number return entry number in the table.

Definition at line 78 of file TProcessUUID.cxx.

◆ AddUUID() [2/2]

UInt_t TProcessUUID::AddUUID ( const char *  uuids)

Add uuid with name uuids to the table of UUIDs return entry number in the table.

Definition at line 110 of file TProcessUUID.cxx.

◆ FindUUID()

TObjString * TProcessUUID::FindUUID ( UInt_t  number) const

Find the TObjString by slot number.

Definition at line 128 of file TProcessUUID.cxx.

◆ GetActive()

TBits* TProcessUUID::GetActive ( ) const
inline

Definition at line 49 of file TProcessUUID.h.

◆ GetUUIDs()

TList* TProcessUUID::GetUUIDs ( ) const
inline

Definition at line 50 of file TProcessUUID.h.

◆ operator=()

TProcessUUID& TProcessUUID::operator= ( const TProcessUUID )
private

◆ RemoveUUID()

void TProcessUUID::RemoveUUID ( UInt_t  number)

Remove entry number in the list of uuids.

Definition at line 142 of file TProcessUUID.cxx.

Member Data Documentation

◆ fActive

TBits* TProcessUUID::fActive
protected

Definition at line 40 of file TProcessUUID.h.

◆ fUUIDs

TList* TProcessUUID::fUUIDs
protected

Definition at line 39 of file TProcessUUID.h.


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