DbiTimerManager.h

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// $Id: DbiTimerManager.h,v 1.2 2003/03/25 07:59:32 west Exp $

#ifndef DBITIMERMANAGER
#define DBITIMERMANAGER

// DbiTimerManager                                                    //
//                                                                    //
// Package: Dbi (Database Interface).                                 //
//                                                                    //
// N. West 01/2002                                                    //
//                                                                    //
// Concept: Manager of a set of simple timers.                        //
//                                                                    //
// Purpose: To find out why this is all soooo sssllloooowwww!         //
//                                                                    //

#include <string>
#include <list>

using std::string;
using std::list;

class DbiTableMetaData;
class DbiTimer;

class DbiTimerManager
{

public:

// Constructors and destructors.
           DbiTimerManager();
  virtual ~DbiTimerManager();

// State testing member functions

// State changing member functions
    void Enable(Bool_t flag=kTRUE,
                Bool_t enableSubWatch = kFALSE) { fEnabled = flag;
                                    fSubWatchEnabled = enableSubWatch;}
    void RecBegin(string tableName, UInt_t rowSize);
    void RecEnd(UInt_t numRows);
    void RecFillAgg(Int_t aggNo);
    void RecMainQuery();
    void StartSubWatch(UInt_t subWatch);

// Global timer manager used for all queries to the DBI.

static DbiTimerManager gTimerManager;

private:  

 DbiTimer* GetCurrent();
 DbiTimer* Pop();
 DbiTimer* Push();

// Data members

          Bool_t fEnabled;     // Enable/disable
          Bool_t fSubWatchEnabled;     
                               // SubWatch Enable/disable (not used now).
 list<DbiTimer*> fTimers;      // Push-down stack of timers.

 ClassDef(DbiTimerManager,0)    // Simple query timer

};


#endif // DBITIMERMANAGER

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