TDbiTimerManager Class Reference

Concept: Manager of a set of simple timers. More...

#include <TDbiTimerManager.hxx>

Collaboration diagram for TDbiTimerManager:

Public Member Functions
	TDbiTimerManager ()
virtual	~TDbiTimerManager ()
void	Enable (Bool_t flag=kTRUE, Bool_t enableSubWatch=kFALSE)
void	RecBegin (string tableName, UInt_t rowSize)
void	RecEnd (UInt_t numRows)
void	RecFillAgg (Int_t aggNo)
void	RecMainQuery ()
void	StartSubWatch (UInt_t subWatch)
Static Public Attributes
static TDbiTimerManager	gTimerManager
Private Member Functions
TDbiTimer *	GetCurrent ()
TDbiTimer *	Pop ()
TDbiTimer *	Push ()
Private Attributes
Bool_t	fEnabled
Bool_t	fSubWatchEnabled
list< TDbiTimer * >	fTimers

Detailed Description

Concept: Manager of a set of simple timers.

Purpose: To find out why this is all soooo sssllloooowwww!

Definition at line 24 of file TDbiTimerManager.hxx.

Constructor & Destructor Documentation

TDbiTimerManager::TDbiTimerManager ( )

TDbiTimerManager::~TDbiTimerManager ( ) [virtual]

Definition at line 54 of file TDbiTimerManager.cxx.

References GetCurrent(), Pop(), and SK_DBI_Trace.

00054                                     {
00055 //
00056 //
00057 //  Purpose: Destructor
00058 //
00059 //  Contact:   N. West
00060 //
00061 
00062 
00063   SK_DBI_Trace( "Destroying TDbiTimerManager" << "  ");
00064   while ( this->GetCurrent() ) this->Pop();
00065 
00066 }

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Member Function Documentation

void TDbiTimerManager::Enable	(	Bool_t	flag = `kTRUE`,
		Bool_t	enableSubWatch = `kFALSE`
	)			`[inline]`

Definition at line 36 of file TDbiTimerManager.hxx.

References fEnabled, and fSubWatchEnabled.

00037                                                 { fEnabled = flag;
00038                                     fSubWatchEnabled = enableSubWatch;}

TDbiTimer * TDbiTimerManager::GetCurrent ( ) [private]

Definition at line 70 of file TDbiTimerManager.cxx.

References fTimers.

Referenced by Pop(), Push(), RecEnd(), RecMainQuery(), StartSubWatch(), and ~TDbiTimerManager().

00070                                         {
00071 //
00072 //
00073 //  Purpose:  Get the current timer if any.
00074 //
00075 //  Return:   Curent timer or null if none.
00076 //
00077 //  Contact:   N. West
00078 
00079   return fTimers.empty() ? 0 : *(fTimers.begin());
00080 }

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TDbiTimer * TDbiTimerManager::Pop ( ) [private]

Definition at line 83 of file TDbiTimerManager.cxx.

References fTimers, GetCurrent(), and TDbiTimer::Resume().

Referenced by RecEnd(), and ~TDbiTimerManager().

00083                                  {
00084 //
00085 //
00086 //  Purpose:   Remove the most recent timer, and resume the previous.
00087 //
00088 //  Return:    Previous timer (if any).
00089 //
00090 
00091   if ( fTimers.empty() ) return 0;
00092 
00093   TDbiTimer* timer = this->GetCurrent();
00094   delete timer;
00095   timer = 0;
00096   fTimers.pop_front();
00097   timer = this->GetCurrent();
00098   if ( timer ) timer->Resume();
00099   return timer;
00100 
00101 }

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TDbiTimer * TDbiTimerManager::Push ( ) [private]

Definition at line 105 of file TDbiTimerManager.cxx.

References fTimers, GetCurrent(), and TDbiTimer::Suspend().

Referenced by RecBegin().

00105                                   {
00106 //
00107 //
00108 //  Purpose:   Suspend current time and add new timer to stack.
00109 //
00110 //  Return:    New timer.
00111 //
00112 
00113   TDbiTimer* timer = this->GetCurrent();
00114   if ( timer ) timer->Suspend();
00115   fTimers.push_front(new TDbiTimer);
00116   return this->GetCurrent();
00117 
00118 }

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void TDbiTimerManager::RecBegin	(	string	tableName,
		UInt_t	rowSize
	)

Definition at line 122 of file TDbiTimerManager.cxx.

References fEnabled, Push(), and TDbiTimer::RecBegin().

00122                                                                 {
00123 //
00124 //
00125 //  Purpose:  Record the start of initial query on supplied table.
00126 //
00127 //  Arguments:
00128 //    tableName    in    Name of table.
00129 //    rowSize      in    Size of row object
00130 //
00131 //  Contact:   N. West
00132 
00133 //  Suspend current timer, if any, and start a new one.
00134 
00135   if ( ! fEnabled ) return;
00136   TDbiTimer* timer = this->Push();
00137   timer->RecBegin(tableName, rowSize);
00138 }

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void TDbiTimerManager::RecEnd ( UInt_t numRows )

Definition at line 141 of file TDbiTimerManager.cxx.

References fEnabled, GetCurrent(), Pop(), and TDbiTimer::RecEnd().

00141                                             {
00142 //
00143 //
00144 //  Purpose:  Record the end of query.
00145 //
00146 //  Arguments:
00147 //    numRows    in    Number of rows found in query
00148 //
00149 //  Contact:   N. West
00150 
00151   if ( ! fEnabled ) return;
00152 
00153 //  Terminate the current timer and resume the previous one.
00154 
00155   TDbiTimer* timer = this->GetCurrent();
00156   if ( timer ) timer->RecEnd(numRows);
00157   timer = this->Pop();
00158 
00159 }

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void TDbiTimerManager::RecFillAgg ( Int_t aggNo )

Definition at line 163 of file TDbiTimerManager.cxx.

References fEnabled.

Referenced by ClassImp().

00163                                                    {
00164 //
00165 //
00166 //  Purpose:  Record filling of aggregate.
00167 //
00168 //  Arguments:
00169 //    aggNo        in    Aggregate number.
00170 //
00171 //  Contact:   N. West
00172 
00173   if ( ! fEnabled ) return;
00174 
00175 //  Currently a no-op.
00176 
00177 }

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void TDbiTimerManager::RecMainQuery ( )

Definition at line 181 of file TDbiTimerManager.cxx.

References fEnabled, GetCurrent(), and TDbiTimer::RecMainQuery().

Referenced by TDbiDBProxy::QuerySeqNo(), TDbiDBProxy::QuerySeqNos(), TDbiTableProxy::RestoreFromL2Cache(), and TDbiTableProxy::SaveToL2Cache().

00181                                     {
00182 //
00183 //
00184 //  Purpose:  Record the start of main query.
00185 //
00186 //  Contact:   N. West
00187 
00188   if ( ! fEnabled ) return;
00189   TDbiTimer* timer = this->GetCurrent();
00190   if ( timer ) timer->RecMainQuery();
00191 
00192 }

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void TDbiTimerManager::StartSubWatch ( UInt_t subWatch )

Definition at line 196 of file TDbiTimerManager.cxx.

References fEnabled, GetCurrent(), and TDbiTimer::StartSubWatch().

Referenced by ClassImp().

00196                                                     {
00197 //
00198 //
00199 //  Purpose:  Start specified SubWatch if SubWatch timers enabled.
00200 //
00201 //  Arguments:
00202 //    subWatch     in    SubWatch number ( 0 .. kMaxSubWatch-1 ).
00203 //
00204 //  Contact:   N. West
00205 
00206   if ( ! fEnabled ) return;
00207   TDbiTimer* timer = this->GetCurrent();
00208   if ( timer ) timer->StartSubWatch(subWatch);
00209 
00210 }