ICounterSvc.h

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// $Id: ICounterSvc.h,v 1.4 2007/08/06 08:39:40 marcocle Exp $
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// CVS tag $Name:  $, version $Revision: 1.4 $
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#ifndef GAUDIKERNEL_ICOUNTERSVC_H
#define GAUDIKERNEL_ICOUNTERSVC_H
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// Include files
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// STD & STL
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#include <string>
#include <vector>
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// GaudiKernel
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#include "GaudiKernel/IInterface.h"
#include "GaudiKernel/StatEntity.h"
#include "GaudiKernel/Stat.h"
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// Forward declarations
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class MsgStream   ;
class StatEntity  ;
class ICounterSvc ;
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class GAUDI_API ICounterSvc: virtual public IInterface
{
public:
  DeclareInterfaceID(ICounterSvc,4,0);
  typedef StatEntity Counter ;
  typedef Stat       CountObject ;
  typedef std::vector<CountObject> Counters ;
  class Printout
  {
  public:
    Printout  ( ICounterSvc* svc ) ;
    ~Printout () ;
    StatusCode operator()( MsgStream& log , const Counter* cnt )  const ;
  private:
    // no defauld constructor
    Printout () ; 
    // no copy
    Printout ( const Printout& ) ; //< no coy constructor
    // no assignement
    Printout& operator=( const Printout& ) ; 
  private:
    ICounterSvc* m_svc;
  } ;
  virtual Counter* get
  ( const std::string& group ,
    const std::string& name  ) const = 0;
  virtual Counters get ( const std::string& group ) const = 0 ;
  virtual StatusCode create
  ( const std::string& group         ,
    const std::string& name          ,
    longlong           initial_value ,
    Counter*&          refpCounter   ) = 0;
  virtual CountObject create
  ( const std::string& group    ,
    const std::string& name     ,
    longlong  initial_value = 0 ) = 0;
  virtual StatusCode remove
  ( const std::string& group ,
    const std::string& name  ) = 0;
  virtual StatusCode remove
  ( const std::string& group ) = 0;
  virtual StatusCode print
  ( const std::string& group   ,
    const std::string& name    ,
    Printout&          printer ) const = 0;
  virtual StatusCode print
  ( const std::string& group   ,
    Printout&          printer ) const = 0;
  virtual StatusCode print
  ( const Counter* pCounter ,
    Printout&      printer  ) const = 0;
  virtual StatusCode print
  ( const CountObject& pCounter ,
    Printout&          printer  ) const = 0;
  virtual StatusCode print
  ( Printout& printer ) const = 0;
  virtual StatusCode defaultPrintout
  ( MsgStream&     log      ,
    const Counter* pCounter ) const = 0;
  // Return codes:
  enum {  COUNTER_NOT_PRESENT = 2,  // Error
          COUNTER_EXISTS      = 4,  // Error ?
          COUNTER_REMOVED     = 3   // Type of success. Low bit set
  } ;
protected:
  virtual ~ICounterSvc() ; 
};
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std::ostream& operator<<( std::ostream& , const ICounterSvc::CountObject& ) ;
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#endif // GAUDIKERNEL_ICOUNTERSVC_H
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