KeyedObjectManager.h

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/***********************************************************************************\
* (c) Copyright 1998-2025 CERN for the benefit of the LHCb and ATLAS collaborations *
*                                                                                   *
* This software is distributed under the terms of the Apache version 2 licence,     *
* copied verbatim in the file "LICENSE".                                            *
*                                                                                   *
* In applying this licence, CERN does not waive the privileges and immunities       *
* granted to it by virtue of its status as an Intergovernmental Organization        *
* or submit itself to any jurisdiction.                                             *
\***********************************************************************************/
#pragma once
 
#include <GaudiKernel/ClassID.h>
#include <GaudiKernel/Kernel.h>
#include <GaudiKernel/KeyedTraits.h>
#include <vector>
 
class ObjectContainerBase;
class ContainedObject;
 
namespace Containers {
  typedef long ( *MANIPULATOR )( void* );
  struct GAUDI_API hashmap;
  struct GAUDI_API map;
  struct GAUDI_API array;
  struct GAUDI_API vector;

  template <class SETUP>
  class GAUDI_API KeyedObjectManager {
  private:
    typedef std::vector<void*> seq_type;
    seq_type* m_seq;
    mutable long m_direct;
    mutable long m_keyCtxt;
    union {
      char   buffer[128];
      SETUP* s;
    } m_setup;

    void onDirty() const;
 
  public:
    KeyedObjectManager();
    KeyedObjectManager( KeyedObjectManager&& other );
    virtual ~KeyedObjectManager();
    void clearDirect();
    long insertDirect( ObjectContainerBase* b, ContainedObject* c, void* o, long k );
    long isDirect() const { return m_direct; }
    void* object( long key ) const;
    long insert( ObjectContainerBase* b, ContainedObject* c, void* o, long* k );
    long insert( ObjectContainerBase* b, ContainedObject* c, void* o, long k );
    void* erase( long key, const void* obj );
    long erase( seq_type::iterator beg, seq_type::iterator end );
    void reserve( long size );
    void clear();
    void setup( void* seq, void** rndm );
    static CLID classID();
  };

  typedef KeyedObjectManager<map> Map;
  typedef KeyedObjectManager<hashmap> HashMap;
  typedef KeyedObjectManager<vector> Vector;
  typedef KeyedObjectManager<array> Array;
} // namespace Containers