TSignalHandler Class Reference

Definition at line 127 of file TSysEvtHandler.h.

Public Member Functions
	TSignalHandler (ESignals sig, Bool_t sync=kTRUE)
	Create signal event handler.
virtual	~TSignalHandler ()
virtual void	Add ()
	Add signal handler to system signal handler list.
void	Delay ()
ESignals	GetSignal () const
void	HandleDelayedSignal ()
Bool_t	IsAsync () const
Bool_t	IsSync () const
virtual Bool_t	Notify ()
	Notify when signal occurs.
virtual void	Remove ()
	Remove signal handler from system signal handler list.
void	SetSignal (ESignals sig)
Public Member Functions inherited from TSysEvtHandler
	TSysEvtHandler ()
virtual	~TSysEvtHandler ()
void	Activate ()
	Activate a system event handler.
virtual void	Activated ()
virtual void	Added ()
void	DeActivate ()
	De-activate a system event handler.
virtual void	DeActivated ()
Bool_t	IsActive () const
virtual void	Notified ()
virtual void	Removed ()
Public Member Functions inherited from TObject
	TObject ()
	TObject constructor.
	TObject (const TObject &object)
	TObject copy ctor.
virtual	~TObject ()
	TObject destructor.
void	AbstractMethod (const char *method) const
	Use this method to implement an "abstract" method that you don't want to leave purely abstract.
virtual void	AppendPad (Option_t *option="")
	Append graphics object to current pad.
virtual void	Browse (TBrowser *b)
	Browse object. May be overridden for another default action.
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.
virtual const char *	ClassName () const
	Returns name of class to which the object belongs.
virtual void	Clear (Option_t *="")
virtual TObject *	Clone (const char *newname="") const
	Make a clone of an object using the Streamer facility.
virtual Int_t	Compare (const TObject *obj) const
	Compare abstract method.
virtual void	Copy (TObject &object) const
	Copy this to obj.
virtual void	Delete (Option_t *option="")
	Delete this object.
virtual Int_t	DistancetoPrimitive (Int_t px, Int_t py)
	Computes distance from point (px,py) to the object.
virtual void	Draw (Option_t *option="")
	Default Draw method for all objects.
virtual void	DrawClass () const
	Draw class inheritance tree of the class to which this object belongs.
virtual TObject *	DrawClone (Option_t *option="") const
	Draw a clone of this object in the current selected pad for instance with: gROOT->SetSelectedPad(gPad).
virtual void	Dump () const
	Dump contents of object on stdout.
virtual void	Error (const char *method, const char *msgfmt,...) const
	Issue error message.
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.
virtual void	Execute (TMethod *method, TObjArray *params, Int_t *error=0)
	Execute method on this object with parameters stored in the TObjArray.
virtual void	ExecuteEvent (Int_t event, Int_t px, Int_t py)
	Execute action corresponding to an event at (px,py).
virtual void	Fatal (const char *method, const char *msgfmt,...) const
	Issue fatal error message.
virtual TObject *	FindObject (const char *name) const
	Must be redefined in derived classes.
virtual TObject *	FindObject (const TObject *obj) const
	Must be redefined in derived classes.
virtual Option_t *	GetDrawOption () const
	Get option used by the graphics system to draw this object.
virtual const char *	GetIconName () const
	Returns mime type name of object.
virtual const char *	GetName () const
	Returns name of object.
virtual char *	GetObjectInfo (Int_t px, Int_t py) const
	Returns string containing info about the object at position (px,py).
virtual Option_t *	GetOption () const
virtual const char *	GetTitle () const
	Returns title of object.
virtual UInt_t	GetUniqueID () const
	Return the unique object id.
virtual Bool_t	HandleTimer (TTimer *timer)
	Execute action in response of a timer timing out.
virtual ULong_t	Hash () const
	Return hash value for this object.
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.
virtual void	Info (const char *method, const char *msgfmt,...) const
	Issue info message.
virtual Bool_t	InheritsFrom (const char *classname) const
	Returns kTRUE if object inherits from class "classname".
virtual Bool_t	InheritsFrom (const TClass *cl) const
	Returns kTRUE if object inherits from TClass cl.
virtual void	Inspect () const
	Dump contents of this object in a graphics canvas.
void	InvertBit (UInt_t f)
Bool_t	IsDestructed () const
	IsDestructed.
virtual Bool_t	IsEqual (const TObject *obj) const
	Default equal comparison (objects are equal if they have the same address in memory).
virtual Bool_t	IsFolder () const
	Returns kTRUE in case object contains browsable objects (like containers or lists of other objects).
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.
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).
void	Obsolete (const char *method, const char *asOfVers, const char *removedFromVers) const
	Use this method to declare a method obsolete.
void	operator delete (void *ptr)
	Operator delete.
void	operator delete[] (void *ptr)
	Operator delete [].
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.
virtual void	Paint (Option_t *option="")
	This method must be overridden if a class wants to paint itself.
virtual void	Pop ()
	Pop on object drawn in a pad to the top of the display list.
virtual void	Print (Option_t *option="") const
	This method must be overridden when a class wants to print itself.
virtual Int_t	Read (const char *name)
	Read contents of object with specified name from the current directory.
virtual void	RecursiveRemove (TObject *obj)
	Recursively remove this object from a list.
void	ResetBit (UInt_t f)
virtual void	SaveAs (const char *filename="", Option_t *option="") const
	Save this object in the file specified by filename.
virtual void	SavePrimitive (std::ostream &out, Option_t *option="")
	Save a primitive as a C++ statement(s) on output stream "out".
void	SetBit (UInt_t f)
void	SetBit (UInt_t f, Bool_t set)
	Set or unset the user status bits as specified in f.
virtual void	SetDrawOption (Option_t *option="")
	Set drawing option for object.
virtual void	SetUniqueID (UInt_t uid)
	Set the unique object id.
virtual void	SysError (const char *method, const char *msgfmt,...) const
	Issue system error message.
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.
virtual void	Warning (const char *method, const char *msgfmt,...) const
	Issue warning message.
virtual Int_t	Write (const char *name=0, Int_t option=0, Int_t bufsize=0)
	Write this object to the current directory.
virtual Int_t	Write (const char *name=0, Int_t option=0, Int_t bufsize=0) const
	Write this object to the current directory.
Public Member Functions inherited from TQObject
	TQObject ()
	TQObject Constructor.
virtual	~TQObject ()
	TQObject Destructor.
Bool_t	AreSignalsBlocked () const
Bool_t	BlockSignals (Bool_t b)
virtual void	ChangedBy (const char *method)
void	CollectClassSignalLists (TList &list, TClass *cls)
	Collect class signal lists from class cls and all its base-classes.
Bool_t	Connect (const char *signal, const char *receiver_class, void *receiver, const char *slot)
	Non-static method is used to connect from the signal of this object to the receiver slot.
virtual void	Connected (const char *)
virtual void	Destroyed ()
Bool_t	Disconnect (const char *signal=0, void *receiver=0, const char *slot=0)
	Disconnects signal of this object from slot of receiver.
virtual void	Disconnected (const char *)
void	Emit (const char *signal)
	Activate signal without args.
template<typename T >
void	Emit (const char *signal, const T &arg)
	Activate signal with single parameter.
template<typename... T>
void	EmitVA (const char *signal_name, Int_t, const T &... params)
	Emit a signal with a varying number of arguments.
TList *	GetListOfClassSignals () const
	Returns pointer to list of signals of this class.
TList *	GetListOfConnections () const
TList *	GetListOfSignals () const
virtual Bool_t	HasConnection (const char *signal_name) const
	Return true if there is any object connected to this signal.
virtual void	HighPriority (const char *signal_name, const char *slot_name=0)
virtual void	LowPriority (const char *signal_name, const char *slot_name=0)
virtual void	Message (const char *msg)
virtual Int_t	NumberOfConnections () const
	Return number of connections for this object.
virtual Int_t	NumberOfSignals () const
	Return number of signals for this object.

Protected Member Functions
	TSignalHandler ()
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).
void	MakeZombie ()
Protected Member Functions inherited from TQObject
virtual const char *	GetSenderClassName () const

Protected Attributes
Int_t	fDelay
ESignals	fSignal
Bool_t	fSync
Protected Attributes inherited from TQObject
TList *	fListOfConnections
	list of signals from this object
TList *	fListOfSignals
Bool_t	fSignalsBlocked
	list of connections to this object

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 Longptr_t	GetDtorOnly ()
	Return destructor only flag.
static Bool_t	GetObjectStat ()
	Get status of object stat flag.
static void	SetDtorOnly (void *obj)
	Set destructor only flag.
static void	SetObjectStat (Bool_t stat)
	Turn on/off tracking of objects in the TObjectTable.
Static Public Member Functions inherited from TQObject
static Bool_t	AreAllSignalsBlocked ()
	Returns true if all signals are blocked.
static Bool_t	BlockAllSignals (Bool_t b)
	Block or unblock all signals. Returns the previous block status.
static Bool_t	Connect (const char *sender_class, const char *signal, const char *receiver_class, void *receiver, const char *slot)
	This method allows to make a connection from any object of the same class to a single slot.
static Bool_t	Connect (TQObject *sender, const char *signal, const char *receiver_class, void *receiver, const char *slot)
	Create connection between sender and receiver.
static Bool_t	Disconnect (const char *class_name, const char *signal, void *receiver=0, const char *slot=0)
	Disconnects "class signal".
static Bool_t	Disconnect (TQObject *sender, const char *signal=0, void *receiver=0, const char *slot=0)
	Disconnects signal in object sender from slot_method in object receiver.
Protected Types inherited from TObject
enum	{ kOnlyPrepStep = BIT(3) }
Static Protected Member Functions inherited from TQObject
static Int_t	CheckConnectArgs (TQObject *sender, TClass *sender_class, const char *signal, TClass *receiver_class, const char *slot)
	Checking of consistency of sender/receiver methods/arguments.
static TString	CompressName (const char *method_name)
	Removes "const" words and blanks from full (with prototype) method name and resolve any typedefs in the method signature.
static Bool_t	ConnectToClass (const char *sender_class, const char *signal, TClass *receiver_class, void *receiver, const char *slot)
	This method allows to make connection from any object of the same class to the receiver object.
static Bool_t	ConnectToClass (TQObject *sender, const char *signal, TClass *receiver_class, void *receiver, const char *slot)
	Create connection between sender and receiver.
Static Protected Attributes inherited from TQObject
static Bool_t	fgAllSignalsBlocked = kFALSE
	flag used for suppression of signals

#include <TSysEvtHandler.h>

Inheritance diagram for TSignalHandler:

Constructor & Destructor Documentation

TSignalHandler() [1/2]

TSignalHandler::TSignalHandler ( )

inlineprotected

Definition at line 134 of file TSysEvtHandler.h.

TSignalHandler() [2/2]

TSignalHandler::TSignalHandler	(	ESignals	sig,
		Bool_t	sync = kTRUE
	)

Create signal event handler.

Definition at line 149 of file TSysEvtHandler.cxx.

~TSignalHandler()

virtual TSignalHandler::~TSignalHandler ( )

inlinevirtual

Definition at line 138 of file TSysEvtHandler.h.

Member Function Documentation

Add()

void TSignalHandler::Add ( )

virtual

Add signal handler to system signal handler list.

Implements TSysEvtHandler.

Definition at line 168 of file TSysEvtHandler.cxx.

Delay()

void TSignalHandler::Delay ( )

inline

Definition at line 139 of file TSysEvtHandler.h.

GetSignal()

ESignals TSignalHandler::GetSignal ( ) const

inline

Definition at line 141 of file TSysEvtHandler.h.

HandleDelayedSignal()

void TSignalHandler::HandleDelayedSignal ( )

inline

Definition at line 152 of file TSysEvtHandler.h.

IsAsync()

Bool_t TSignalHandler::IsAsync ( ) const

inline

Definition at line 144 of file TSysEvtHandler.h.

IsSync()

Bool_t TSignalHandler::IsSync ( ) const

inline

Definition at line 143 of file TSysEvtHandler.h.

Notify()

Bool_t TSignalHandler::Notify ( )

virtual

Notify when signal occurs.

Implements TSysEvtHandler.

Reimplemented in TInterruptHandler, TARInterruptHandler, TASInterruptHandler, TASSigPipeHandler, TProofInterruptHandler, TProofServTerminationHandler, TProofServInterruptHandler, TProofServSigPipeHandler, TProofServLiteInterruptHandler, TProofServLiteSigPipeHandler, TProofServLiteTerminationHandler, TProofServLiteSegViolationHandler, TProofMgrInterruptHandler, TXProofServSigPipeHandler, TXProofServTerminationHandler, TXProofServSegViolationHandler, and TXSlaveInterruptHandler.

Definition at line 159 of file TSysEvtHandler.cxx.

Remove()

void TSignalHandler::Remove ( )

virtual

Remove signal handler from system signal handler list.

Implements TSysEvtHandler.

Definition at line 179 of file TSysEvtHandler.cxx.

SetSignal()

void TSignalHandler::SetSignal ( ESignals  sig )

inline

Definition at line 142 of file TSysEvtHandler.h.

Member Data Documentation

fDelay

Int_t TSignalHandler::fDelay

protected

Definition at line 132 of file TSysEvtHandler.h.

fSignal

ESignals TSignalHandler::fSignal

protected

Definition at line 130 of file TSysEvtHandler.h.

fSync

Bool_t TSignalHandler::fSync

protected

Definition at line 131 of file TSysEvtHandler.h.