IIncidentSvc.h

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* (c) Copyright 1998-2019 CERN for the benefit of the LHCb and ATLAS collaborations *
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* This software is distributed under the terms of the Apache version 2 licence,     *
* copied verbatim in the file "LICENSE".                                            *
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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;

  class IncidentPack {
  public:
    std::vector<std::unique_ptr<Incident>>       incidents;
    std::vector<std::vector<IIncidentListener*>> listeners;
    IncidentPack( IncidentPack&& o ) : incidents( std::move( o.incidents ) ), listeners( std::move( o.listeners ) ){};
    IncidentPack& operator=( IncidentPack&& o ) {
      incidents = std::move( o.incidents );
      listeners = std::move( o.listeners );
      return *this;
    };
    IncidentPack(){};
  };

  virtual IIncidentSvc::IncidentPack getIncidents( const EventContext* ctx ) = 0;
  virtual void fireIncident( std::unique_ptr<Incident> incident ) = 0;
};

#endif // GAUDIKERNEL_IINCIDENTSVC_H