IServiceFactory.h

// -*- tab-width: 2; indent-tabs-mode: nil; coding: utf-8-with-signature -*-
//-----------------------------------------------------------------------------
// Copyright 2000-2022 CEA (www.cea.fr) IFPEN (www.ifpenergiesnouvelles.com)
// See the top-level COPYRIGHT file for details.
// SPDX-License-Identifier: Apache-2.0
//-----------------------------------------------------------------------------
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/* IServiceFactory.h                                           (C) 2000-2019 */
/*                                                                           */
/* Interface de la manufacture des services.                                 */
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#ifndef ARCANE_ISERVICEFACTORY_H
#define ARCANE_ISERVICEFACTORY_H
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#include "arcane/utils/Ref.h"
#include "arcane/ArcaneTypes.h"
 
#include <atomic>
 
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namespace Arcane
{
 
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class ARCANE_CORE_EXPORT IServiceFactoryInfo
{
 public:

  virtual ~IServiceFactoryInfo() {}
 
 public:

  //TODO: regarder si autoload est encore utile pour ces services.
  virtual bool isAutoload() const =0;
  virtual bool isSingleton() const =0;
 
 public:
  
  virtual IServiceInfo* serviceInfo() const =0;
};
 
namespace Internal
{
 
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class ARCANE_CORE_EXPORT IServiceFactory2
{
 protected:
  virtual ~IServiceFactory2() = default;
 public:
  virtual void addReference() =0;
  virtual void removeReference() =0;
 public:
  virtual ServiceInstanceRef createServiceInstance(const ServiceBuildInfoBase& sbi) =0;
  
  virtual IServiceInfo* serviceInfo() const =0;
};
 
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class ARCANE_CORE_EXPORT AbstractServiceFactory
: public IServiceFactory2
{
 protected:
  AbstractServiceFactory() : m_nb_ref(0){}
 public:
  void addReference() override;
  void removeReference() override;
 private:
  std::atomic<Int32> m_nb_ref;
};
 
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template<typename InterfaceType>
class IServiceFactory2T
: public AbstractServiceFactory
{
 public:
  virtual Ref<InterfaceType> createServiceReference(const ServiceBuildInfoBase& sbi) =0;
};
 
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class ARCANE_CORE_EXPORT ISingletonServiceFactory
{
 public:
  virtual ~ISingletonServiceFactory() = default;

  virtual Ref<ISingletonServiceInstance>
  createSingletonServiceInstance(const ServiceBuildInfoBase& sbi) =0;

  virtual IServiceInfo* serviceInfo() const =0;
};
 
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} // End namespace Internal
 
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} // End namespace Arcane
 
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#endif