class TStopwatch: public TObject


TStopwatch

Stopwatch class. This class returns the real and cpu time between
the start and stop events.

Function Members (Methods)

public:

	TStopwatch()
	TStopwatch(const TStopwatch&)
	~TStopwatch()
void	TObject::AbstractMethod(const char* method) const
virtual void	TObject::AppendPad(Option_t* option = "")
virtual void	TObject::Browse(TBrowser* b)
static TClass*	Class()
static TClass*	TObject::Class()
virtual const char*	TObject::ClassName() const
virtual void	TObject::Clear(Option_t* = "")
virtual TObject*	TObject::Clone(const char* newname = "") const
virtual Int_t	TObject::Compare(const TObject* obj) const
void	Continue()
virtual void	TObject::Copy(TObject& object) const
Int_t	Counter() const
Double_t	CpuTime()
virtual void	TObject::Delete(Option_t* option = "")MENU
virtual Int_t	TObject::DistancetoPrimitive(Int_t px, Int_t py)
virtual void	TObject::Draw(Option_t* option = "")
virtual void	TObject::DrawClass() constMENU
virtual TObject*	TObject::DrawClone(Option_t* option = "") constMENU
virtual void	TObject::Dump() constMENU
virtual void	TObject::Error(const char* method, const char* msgfmt) const
virtual void	TObject::Execute(const char* method, const char* params, Int_t* error = 0)
virtual void	TObject::Execute(TMethod* method, TObjArray* params, Int_t* error = 0)
virtual void	TObject::ExecuteEvent(Int_t event, Int_t px, Int_t py)
virtual void	TObject::Fatal(const char* method, const char* msgfmt) const
virtual TObject*	TObject::FindObject(const char* name) const
virtual TObject*	TObject::FindObject(const TObject* obj) const
virtual Option_t*	TObject::GetDrawOption() const
static Long_t	TObject::GetDtorOnly()
virtual const char*	TObject::GetIconName() const
virtual const char*	TObject::GetName() const
virtual char*	TObject::GetObjectInfo(Int_t px, Int_t py) const
static Bool_t	TObject::GetObjectStat()
virtual Option_t*	TObject::GetOption() const
virtual const char*	TObject::GetTitle() const
virtual UInt_t	TObject::GetUniqueID() const
virtual Bool_t	TObject::HandleTimer(TTimer* timer)
virtual ULong_t	TObject::Hash() const
virtual void	TObject::Info(const char* method, const char* msgfmt) const
virtual Bool_t	TObject::InheritsFrom(const char* classname) const
virtual Bool_t	TObject::InheritsFrom(const TClass* cl) const
virtual void	TObject::Inspect() constMENU
void	TObject::InvertBit(UInt_t f)
virtual TClass*	IsA() const
virtual TClass*	TObject::IsA() const
virtual Bool_t	TObject::IsEqual(const TObject* obj) const
virtual Bool_t	TObject::IsFolder() const
Bool_t	TObject::IsOnHeap() const
virtual Bool_t	TObject::IsSortable() const
Bool_t	TObject::IsZombie() const
virtual void	TObject::ls(Option_t* option = "") const
void	TObject::MayNotUse(const char* method) const
virtual Bool_t	TObject::Notify()
static void	TObject::operator delete(void* ptr)
static void	TObject::operator delete(void* ptr, void* vp)
static void	TObject::operator delete[](void* ptr)
static void	TObject::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)
TStopwatch&	operator=(const TStopwatch&)
TObject&	TObject::operator=(const TObject& rhs)
virtual void	TObject::Paint(Option_t* option = "")
virtual void	TObject::Pop()
virtual void	Print(Option_t* option = "") const
virtual void	TObject::Print(Option_t* option = "") const
virtual Int_t	TObject::Read(const char* name)
Double_t	RealTime()
virtual void	TObject::RecursiveRemove(TObject* obj)
void	Reset()
void	TObject::ResetBit(UInt_t f)
void	ResetCpuTime(Double_t time = 0)
void	ResetRealTime(Double_t time = 0)
virtual void	TObject::SaveAs(const char* filename = "", Option_t* option = "") constMENU
virtual void	TObject::SavePrimitive(basic_ostream<char,char_traits<char> >& out, Option_t* option = "")
void	TObject::SetBit(UInt_t f)
void	TObject::SetBit(UInt_t f, Bool_t set)
virtual void	TObject::SetDrawOption(Option_t* option = "")MENU
static void	TObject::SetDtorOnly(void* obj)
static void	TObject::SetObjectStat(Bool_t stat)
virtual void	TObject::SetUniqueID(UInt_t uid)
virtual void	ShowMembers(TMemberInspector& insp, char* parent)
virtual void	TObject::ShowMembers(TMemberInspector& insp, char* parent)
void	Start(Bool_t reset = kTRUE)
void	Stop()
virtual void	Streamer(TBuffer& b)
void	StreamerNVirtual(TBuffer& b)
virtual void	TObject::SysError(const char* method, const char* msgfmt) const
Bool_t	TObject::TestBit(UInt_t f) const
Int_t	TObject::TestBits(UInt_t f) const
virtual void	TObject::UseCurrentStyle()
virtual void	TObject::Warning(const char* method, const char* msgfmt) const
virtual Int_t	TObject::Write(const char* name = 0, Int_t option = 0, Int_t bufsize = 0)
virtual Int_t	TObject::Write(const char* name = 0, Int_t option = 0, Int_t bufsize = 0) const

protected:

virtual void	TObject::DoError(int level, const char* location, const char* fmt, va_list va) const
void	TObject::MakeZombie()

private:

static Double_t	GetCPUTime()
static Double_t	GetRealTime()

Data Members

private:

enum EState {	kUndefined
	kStopped
	kRunning
};
enum TObject::EStatusBits {	kCanDelete
	kMustCleanup
	kObjInCanvas
	kIsReferenced
	kHasUUID
	kCannotPick
	kNoContextMenu
	kInvalidObject
};
enum TObject::[unnamed] {	kIsOnHeap
	kNotDeleted
	kZombie
	kBitMask
	kSingleKey
	kOverwrite
	kWriteDelete
};

private:

Int_t	fCounter	number of times the stopwatch was started
Double_t	fStartCpuTime	cpu start time
Double_t	fStartRealTime	wall clock start time
TStopwatch::EState	fState	stopwatch state
Double_t	fStopCpuTime	cpu stop time
Double_t	fStopRealTime	wall clock stop time
Double_t	fTotalCpuTime	total cpu time
Double_t	fTotalRealTime	total real time

Class Charts

Inheritance Inherited Members Includes Libraries

Function documentation

TStopwatch()

 Create a stopwatch and start it.

void Start(Bool_t reset = kTRUE)

 Start the stopwatch. If reset is kTRUE reset the stopwatch before
 starting it (including the stopwatch counter).
 Use kFALSE to continue timing after a Stop() without
 resetting the stopwatch.

void Stop()

 Stop the stopwatch.

void Continue()

 Resume a stopped stopwatch. The stopwatch continues counting from the last
 Start() onwards (this is like the laptimer function).

Double_t RealTime()

 Return the realtime passed between the start and stop events. If the
 stopwatch was still running stop it first.

Double_t CpuTime()

 Return the cputime passed between the start and stop events. If the
 stopwatch was still running stop it first.

Double_t GetRealTime()

 Private static method returning system realtime.

Double_t GetCPUTime()

 Private static method returning system CPU time.

void Print(Option_t* option = "") const

 Print the real and cpu time passed between the start and stop events.
 and the number of times (slices) this TStopwatch was called
 (if this number > 1). If opt="m" print out realtime in milli second
 precision. If opt="u" print out realtime in micro second precision.

TStopwatch()

Int_t Counter() const

{ return fCounter; }

void Reset()

{ ResetCpuTime(); ResetRealTime(); }

void ResetCpuTime(Double_t time = 0)

{ Stop(); fTotalCpuTime = time; }

void ResetRealTime(Double_t time = 0)

{ Stop(); fTotalRealTime = time; }