IIncidentSvc.h

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* (c) Copyright 1998-2021 CERN for the benefit of the LHCb and ATLAS collaborations *
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#ifndef INTERFACES_IINCIDENTSVC_H
#define INTERFACES_IINCIDENTSVC_H
 
// Include Files
#include "GaudiKernel/EventContextHash.h"
#include "GaudiKernel/IInterface.h"
#include "GaudiKernel/Incident.h"
#include <memory>
#include <string>
#include <vector>
// Forward declarations
class IIncidentListener;
// class Incident;
 
class GAUDI_API IIncidentSvc : virtual public IInterface {
public:
  DeclareInterfaceID( IIncidentSvc, 2, 0 );
 
  virtual void addListener( IIncidentListener* lis, const std::string& type = "", long priority = 0,
                            bool rethrow = false, bool singleShot = false ) = 0;
  virtual void removeListener( IIncidentListener* lis, const std::string& type = "" ) = 0;
 
  //@TODO: return vector by value instead...
  virtual void getListeners( std::vector<IIncidentListener*>& lis, const std::string& type = "" ) const = 0;
 
  virtual void fireIncident( const Incident& incident ) = 0;
 
  struct Listener final {
    IIncidentListener* iListener{nullptr};
    long               priority{0};
    bool               rethrow{false};
    bool               singleShot{false};
  };
 
  typedef std::vector<std::pair<std::unique_ptr<Incident>, std::vector<Listener>>> IncidentPack;
 
  virtual IIncidentSvc::IncidentPack getIncidents( const EventContext* ctx ) = 0;
 
  virtual void fireIncident( std::unique_ptr<Incident> incident ) = 0;
};
 
#endif // GAUDIKERNEL_IINCIDENTSVC_H