EVGThreadException.h

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//____________________________________________________________________________
/*!
 
\class   genie::exceptions::EVGThreadException
 
\brief   An exception thrown by EventRecordVisitorI when the normal processing
         sequence has to be disrupted (fast-fwd at the end or step-back)
 
\author  Costas Andreopoulos <c.andreopoulos \at cern.ch>
 University of Liverpool
 
\created September 27, 2005
 
\cpright Copyright (c) 2003-2025, The GENIE Collaboration
         For the full text of the license visit http://copyright.genie-mc.org   
*/
//____________________________________________________________________________
 
#ifndef _EVG_THREAD_EXCEPTION_H_
#define _EVG_THREAD_EXCEPTION_H_
 
#include <string>
#include <ostream>
 
#include <TMath.h>
 
using std::string;
using std::ostream;
 
namespace genie {
namespace exceptions {
 
class Interaction;
 
class EVGThreadException {
 
public :
 
  EVGThreadException();
  EVGThreadException(const EVGThreadException & exception);
  ~EVGThreadException();
 
  void   SetReason  (string reason) { fReason     = reason;          }
  void   SwitchOnFastForward (void) { fFastFwd    = true;            }
  void   SwitchOnStepBack    (void) { fStepBack   = true;            }
  void   SetReturnStep (int s)      { fReturnStep = TMath::Max(0,s); }
 
  string ShowReason  (void) const { return fReason;     }
  bool   FastForward (void) const { return fFastFwd;    }
  bool   StepBack    (void) const { return fStepBack;   }
  int    ReturnStep  (void) const { return fReturnStep; }
 
  void Init  (void);
  void Copy  (const EVGThreadException & exception);
  void Print (ostream & stream) const;
 
  friend ostream & operator << (
             ostream & stream, const EVGThreadException & exception);
 
private:
 
  bool   fFastFwd;
  bool   fStepBack;
  int    fReturnStep;
  string fReason;
};
 
}      // exceptions namespace
}      // genie namespace
 
#endif // _EVG_THREAD_EXCEPTION_H_