This class represents the encapsulation of a block request.
It contains the chunks to be prefetched and also serves as a container for the information read. These blocks are prefetch in a special reader thread by the TFilePrefetch class.
Definition at line 22 of file TFPBlock.h.
Public Member Functions | |
TFPBlock (Long64_t *, Int_t *, Int_t) | |
Constructor. More... | |
virtual | ~TFPBlock () |
Destructor. More... | |
char * | GetBuffer () const |
Get block buffer. More... | |
Long64_t | GetCapacity () const |
Return capacity of the block. More... | |
Long64_t | GetDataSize () const |
Return size of the data in the block. More... | |
Int_t * | GetLen () const |
Get pointer to the array of lengths. More... | |
Int_t | GetLen (Int_t) const |
Get length of the element at index i. More... | |
Int_t | GetNoElem () const |
Return number of elements in the block. More... | |
Long64_t * | GetPos () const |
Get pointer to the array of postions. More... | |
Long64_t | GetPos (Int_t) const |
Get position of the element at index i. More... | |
char * | GetPtrToPiece (Int_t index) const |
Get block buffer. More... | |
void | ReallocBlock (Long64_t *, Int_t *, Int_t) |
Reallocate the block's buffer based on the length of the elements it will contain. More... | |
void | SetBuffer (char *) |
Set block buffer. More... | |
void | SetPos (Int_t, Long64_t) |
Set pos value for index idx. 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... | |
Private Member Functions | |
TFPBlock (const TFPBlock &)=delete | |
TFPBlock & | operator= (const TFPBlock &)=delete |
Private Attributes | |
char * | fBuffer |
Content of the block. More... | |
Long64_t | fCapacity |
Capacity of the buffer. More... | |
Long64_t | fDataSize |
Total size of useful data in the block. More... | |
Int_t * | fLen |
Array of lengths of each segment. More... | |
Int_t | fNblock |
Number of segment in the block. More... | |
Long64_t * | fPos |
Array of positions of each segment. More... | |
Long64_t * | fRelOffset |
Relative offset of piece in the buffer. More... | |
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 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 Types inherited from TObject | |
enum | { kOnlyPrepStep = BIT(3) } |
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 () |
#include <TFPBlock.h>
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privatedelete |
Constructor.
Definition at line 36 of file TFPBlock.cxx.
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virtual |
Destructor.
Definition at line 60 of file TFPBlock.cxx.
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inline |
Get block buffer.
Definition at line 103 of file TFPBlock.h.
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inline |
Return capacity of the block.
Definition at line 79 of file TFPBlock.h.
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inline |
Return size of the data in the block.
Definition at line 73 of file TFPBlock.h.
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inline |
Get pointer to the array of lengths.
Definition at line 66 of file TFPBlock.h.
Get length of the element at index i.
Definition at line 97 of file TFPBlock.h.
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inline |
Return number of elements in the block.
Definition at line 85 of file TFPBlock.h.
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inline |
Get pointer to the array of postions.
Definition at line 60 of file TFPBlock.h.
Get position of the element at index i.
Definition at line 91 of file TFPBlock.h.
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inline |
Get block buffer.
Definition at line 109 of file TFPBlock.h.
Reallocate the block's buffer based on the length of the elements it will contain.
Definition at line 94 of file TFPBlock.cxx.
void TFPBlock::SetBuffer | ( | char * | buf | ) |
Set block buffer.
Definition at line 81 of file TFPBlock.cxx.
Set pos value for index idx.
Definition at line 72 of file TFPBlock.cxx.
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private |
Content of the block.
Definition at line 25 of file TFPBlock.h.
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private |
Capacity of the buffer.
Definition at line 28 of file TFPBlock.h.
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private |
Total size of useful data in the block.
Definition at line 27 of file TFPBlock.h.
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private |
Array of lengths of each segment.
Definition at line 29 of file TFPBlock.h.
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private |
Number of segment in the block.
Definition at line 26 of file TFPBlock.h.
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private |
Array of positions of each segment.
Definition at line 30 of file TFPBlock.h.
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private |
Relative offset of piece in the buffer.
Definition at line 31 of file TFPBlock.h.