dbaccessor.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/dbaccessor.h to include/dbe/dbaccessor.hpp).
 
/*
 * dbaccessor.h
 *
 *  Created on: Feb 10, 2016
 *      Author: Leonidas Georgopoulos
 */
 
#ifndef DBE_DBACCESSOR_H_
#define DBE_DBACCESSOR_H_
 
#include "dbe/cptr.hpp"
#include "dbe/types.hpp"
 
#include "conffwk/Configuration.hpp"
#include <string>
 
namespace dbe
{
 
namespace config
{
namespace api
{
struct rwdacc;
 
namespace info
{
class onclass;
}
 
namespace get
{
class file;
}
 
}
} //namespace config
 
//------------------------------------------------------------------------------------------
 
class dbholder
{
  typedef dbe::types::common::type_mutex t_mutex;
  typedef dbe::types::common::type_lock t_lock;
 
  static dunedaq::conffwk::Configuration * database;
  static cptr<dunedaq::conffwk::Configuration> database_concurrent_ptr;
  static dbe::types::common::type_mutex database_lock;
 
  friend class confaccessor;
  friend class dbaccessor;
};
 
class dbaccessor
{
  typedef dbholder::t_mutex t_mutex;
  typedef dbholder::t_lock t_lock;

  static cptr<dunedaq::conffwk::Configuration> dbptr();
 
  static bool is_loaded();
 
  friend class confaccessor;
 
  friend class dbe::config::api::rwdacc;
 
  friend class dbe::config::api::get::file;
 
  friend class dbe::config::api::info::onclass;
 
};
//------------------------------------------------------------------------------------------
}// end namespace dbe
#endif /* DBE_DBACCESSOR_H_ */