ECFactory.h

[詳解]

// -*- C++ -*-
#ifndef RTC_ECFACTORY_H
#define RTC_ECFACTORY_H
 
#include <rtm/ExecutionContextBase.h>
#include <string>
 
namespace RTC
{
 
  using ECNewFunc = ExecutionContextBase* (*)();
  using ECDeleteFunc = void (*)(ExecutionContextBase*);
 
  template <class T_New>
  ExecutionContextBase* ECCreate()
  {
    return new T_New();
  }
 
  template <class T_Delete>
  void ECDelete(ExecutionContextBase* ec)
  {
    delete ec;
  }
 
  class ECFactoryBase
  {
  public:
    virtual ~ECFactoryBase() = default;
 
    virtual const char* name() = 0;
 
    virtual ExecutionContextBase* create() = 0;
 
    virtual void destroy(ExecutionContextBase* comp) = 0;
  protected:
  };
 
  class ECFactoryCXX
    : public ECFactoryBase
  {
  public:
    ECFactoryCXX(const char* name,
                 ECNewFunc new_func,
                 ECDeleteFunc delete_func);
 
    ~ECFactoryCXX() override;
 
    const char* name() override;
 
    ExecutionContextBase* create() override;
 
    void destroy(ExecutionContextBase* ec) override;
 
  protected:
    std::string m_name;
 
    ECNewFunc m_New;
 
    ECDeleteFunc m_Delete;
  };
} // namespace RTC
#endif  // RTC_ECFACTORY_H