ToolSvc.h

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/***********************************************************************************\
* (c) Copyright 1998-2019 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.                                             *
\***********************************************************************************/
#ifndef GAUDISVC_TOOLSVC_H
#define GAUDISVC_TOOLSVC_H
 
// Include Files
#include "GaudiKernel/IHistorySvc.h"
#include "GaudiKernel/IToolSvc.h"
#include "GaudiKernel/Service.h"
#include <mutex>
#include <vector>
 
class ToolSvc : public extends<Service, IToolSvc> {
 
public:
  using extends::extends;
 
  ~ToolSvc() override;
 
  StatusCode finalize() override;
 
  // Start transition for tools
  StatusCode start() override;
 
  // Stop transition for tools
  StatusCode stop() override;
 
  StatusCode retrieve( std::string_view type, const InterfaceID& iid, IAlgTool*& tool, const IInterface* parent,
                       bool createIf ) override;
 
  StatusCode retrieve( std::string_view tooltype, std::string_view toolname, const InterfaceID& iid, IAlgTool*& tool,
                       const IInterface* parent, bool createIf ) override;
 
  std::vector<std::string> getInstances( std::string_view toolType ) override;
 
  std::vector<std::string> getInstances() const override;
 
  std::vector<IAlgTool*> getTools() const override;
 
  StatusCode releaseTool( IAlgTool* tool ) override;
 
  StatusCode create( const std::string& type, const IInterface* parent, IAlgTool*& tool );
 
  StatusCode create( const std::string& type, const std::string& name, const IInterface* parent, IAlgTool*& tool );
 
  bool existsTool( std::string_view toolname ) const;
 
  std::string nameTool( std::string_view nameByUser, const IInterface* parent );
 
  void registerObserver( IToolSvc::Observer* obs ) override;
 
private: // methods
  // helper functions
  //
  unsigned long totalToolRefCount() const;
  unsigned long minimumToolRefCount() const;
 
  StatusCode finalizeTool( IAlgTool* itool ) const;
 
private: // data
  std::vector<IAlgTool*> m_instancesTools; // List of all instances of tools
 
  IHistorySvc* m_pHistorySvc = nullptr;
 
  std::vector<IToolSvc::Observer*> m_observers;
 
  typedef std::recursive_mutex CallMutex;
  mutable CallMutex            m_mut;
};
 
#endif