config_reference_copy.hpp

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// DUNE DAQ modification notice:
// This file has been modified from the original ATLAS dbe source for the DUNE DAQ project.
// Fork baseline commit: dbe-02-12-17 (2022-05-12).
// Renamed since fork: yes (from dbe/config_reference_copy.hpp to include/dbe/config_reference_copy.hpp).
 
/************************************************************
 * config_reference_copy.hpp
 *
 *  Created on: Feb 4, 2016
 *      Author: Leonidas Georgopoulos
 ************************************************************/
 
#ifndef DBE_CONFIG_REFERENCE_COPY_HPP_
#define DBE_CONFIG_REFERENCE_COPY_HPP_
 
#include "dbe/config_reference.hpp"
#include "dbe/confobject_extra.hpp"
 
#include <functional>
 
namespace dbe
{
 
namespace inner
{
 
namespace configobject
{
 
//------------------------------------------------------------------------------------------
template<typename T = config_object_linker> class aref: ref_interface<aref<T>>
{
private:
  // A reference to the current reference in the database, which may have been removed
  tref this_object_ref;
 
  // The copy of the object
  T this_object_image;
 
  const tref & ref() const
  {
    return this_object_ref;
  }
 
public:
  aref ( tref const & o )
    : this_object_ref ( o ),
      this_object_image ( o )
  {
  }
 
  friend class ref_interface<aref> ;
  friend class inner::dbcontroller;
};
//------------------------------------------------------------------------------------------
 
//------------------------------------------------------------------------------------------
template<typename T = config_object_linker> class gref
{
public:
  typedef T t_extractor;
  typedef std::function<void ( dref const ) > config_action_notifiable;

  bool is_null() const;

  void notify ( config_action_notifiable tele );
 
private:
  typedef std::deque<t_extractor> type_extractor_stack;
  typedef std::vector<dbe::tref> type_ref_container;
 

  tref rebuild();

  void record ( tref const & obj );

  void post();
 
 
  type_extractor_stack this_remove_stack;
  type_ref_container this_notify_stack;
 
  friend class inner::dbcontroller;
};
//------------------------------------------------------------------------------------------
 
}  // namespace configobject
 
}  // namespace inner
 
}  // namespace dbe
 
#endif /* DBE_CONFIG_REFERENCE_COPY_HPP_ */