/cvmfs/atlas.cern.ch/repo/sw/ASG/AnalysisBase/2.4.31/xAODCore/xAODCore/ShallowAuxContainer.h

// Dear emacs, this is -*- c++ -*-
// $Id: ShallowAuxContainer.h 785968 2016-11-23 12:34:36Z krasznaa $
#ifndef XAODCORE_SHALLOWAUXCONTAINER_H
#define XAODCORE_SHALLOWAUXCONTAINER_H

// EDM include(s):
#include "AthLinks/DataLink.h"
#include "AthContainersInterfaces/IAuxStore.h"
#include "AthContainersInterfaces/IAuxStoreIO.h"
#include "AthContainersInterfaces/IAuxStoreHolder.h"
#include "AthContainers/tools/threading.h"
#ifndef XAOD_STANDALONE
#   include "AthenaKernel/ILockable.h"
#endif // not XAOD_STANDALONE

// Local include(s):
#include "xAODCore/AuxSelection.h"

namespace xAOD {

   class ShallowAuxContainer : public SG::IAuxStore,
                               public SG::IAuxStoreIO,
                               public SG::IAuxStoreHolder
#ifndef XAOD_STANDALONE
                          , public ILockable
#endif // not XAOD_STANDALONE
   {

   public:
      typedef SG::auxid_t auxid_t;
      typedef SG::auxid_set_t auxid_set_t;

      ShallowAuxContainer( bool standalone = false );
      ShallowAuxContainer( const ShallowAuxContainer& parent );
      ShallowAuxContainer( const DataLink< SG::IConstAuxStore >& parent,
                           bool standalone = false );
      ~ShallowAuxContainer();

      ShallowAuxContainer& operator= ( const ShallowAuxContainer& rhs );

      const DataLink< SG::IConstAuxStore >& parent() const;
      void setParent( const DataLink< SG::IConstAuxStore >& link );

      bool shallowIO() const;
      void setShallowIO( bool value );


      virtual SG::IAuxStore* getStore() const;
      virtual void setStore( SG::IAuxStore* store );
      virtual AuxStoreType getStoreType() const { return AST_ContainerStore; }



      virtual const void* getData( auxid_t auxid ) const;

      virtual const auxid_set_t& getAuxIDs() const;

      virtual void* getDecoration (auxid_t auxid, size_t size, size_t capacity);
      virtual void lock();
      virtual void clearDecorations();
      virtual size_t size() const;


      virtual void* getData( auxid_t auxid, size_t size,
                             size_t capacity );

      virtual const auxid_set_t& getWritableAuxIDs() const;

      virtual void resize( size_t size );
      virtual void reserve( size_t size );
      virtual void shift( size_t pos, ptrdiff_t offs );



      virtual const void* getIOData( auxid_t auxid ) const;

      virtual const std::type_info* getIOType( auxid_t auxid ) const;

      virtual const auxid_set_t& getDynamicAuxIDs() const;

      virtual void selectAux( const std::set< std::string >& attributes );

      virtual const auxid_set_t& getSelectedAuxIDs() const;



      const char* name() const;
      void setName( const char* name );


   private:
      AuxSelection m_selection;

      SG::IAuxStore* m_store;
      SG::IAuxStoreIO* m_storeIO;
      bool m_ownsStore;
      bool m_locked;

      DataLink< SG::IConstAuxStore > m_parentLink;
      mutable SG::IAuxStoreIO* m_parentIO;
      bool m_shallowIO;

      mutable size_t m_tick;

      typedef AthContainers_detail::mutex mutex_t;
      typedef AthContainers_detail::lock_guard<mutex_t> guard_t;
      mutable mutex_t m_mutex;

      struct TSAuxidSet
      {
        size_t m_tick;
        auxid_set_t m_set;
        TSAuxidSet (size_t tick, const auxid_set_t& set)
          : m_tick (tick), m_set (set) {}
        TSAuxidSet ()
          : m_tick (0) {}
      };
      mutable AthContainers_detail::thread_specific_ptr<TSAuxidSet> m_tsAuxids;

      std::string m_name;

   }; // class ShallowAuxContainer

} // namespace xAOD

// Declare a class ID for the class:
#include "xAODCore/CLASS_DEF.h"
CLASS_DEF( xAOD::ShallowAuxContainer, 1111823638, 1 )

// Describe the inheritance of the class:
#include "xAODCore/BaseInfo.h"
SG_BASES3( xAOD::ShallowAuxContainer, SG::IAuxStore, SG::IAuxStoreIO,
           SG::IAuxStoreHolder );

#endif // XAODCORE_SHALLOWAUXCONTAINER_H

---