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// -*- C++ -*-
//=============================================================================
/**
* @file Auto_Functor.h
*
* @author Carlos O'Ryan <coryan@atdesk.com>
*/
//=============================================================================
#ifndef ACE_AUTO_FUNCTOR_H
#define ACE_AUTO_FUNCTOR_H
#include /**/ "ace/pre.h"
#include /**/ "ace/config-all.h"
#if !defined (ACE_LACKS_PRAGMA_ONCE)
# pragma once
#endif /* ACE_LACKS_PRAGMA_ONCE */
#include "ace/Global_Macros.h"
ACE_BEGIN_VERSIONED_NAMESPACE_DECL
namespace ACE_Utils
{
/**
* @class Auto_Functor_Ref
*
* @brief Helper class to implement assignment and copy-construction
* as expected
*/
template<typename X, typename Functor>
struct Auto_Functor_Ref
{
X * p_;
Functor f_;
Auto_Functor_Ref(X * p, Functor f);
};
/**
* @class Auto_Functor
*
* @brief Helper template to implement auto_ptr<>-like classes, but
* executing a functor in the destructor, instead of always
* deleting things.
*
* The functor is called in the destructor, and it must implement:
*
* Functor() noexcept;<BR>
* Functor(Functor const &) noexcept;<BR>
* Functor & operator=(Functor const &) noexcept;<BR>
* void operator()(X * p) noexcept;<BR>
*/
template<typename X, typename Functor>
class Auto_Functor
{
public:
typedef X element_type;
typedef Functor functor_type;
/// Constructor
explicit Auto_Functor (X * p = 0,
Functor functor = Functor()); // noexcept
Auto_Functor (Auto_Functor & rhs); // noexcept
Auto_Functor<X,Functor>& operator= (Auto_Functor & rhs); // noexcept
template<typename Y>
Auto_Functor(Auto_Functor<Y,Functor>& rhs); // noexcept
template<typename Y>
Auto_Functor<X,Functor>& operator= (Auto_Functor<Y,Functor>& rhs); // noexcept
~Auto_Functor(); // noexcept
X & operator*() const; // noexcept
X * operator->() const; // noexcept
X * get(); // noexcept
X * release(); // noexcept
void reset (X * p = 0); // noexcept
void reset (X * p, Functor f); // noexcept
Functor const & functor() const; // noexcept
Auto_Functor(Auto_Functor_Ref<X,Functor> rhs); // noexcept
Auto_Functor<X,Functor> & operator=(Auto_Functor_Ref<X,Functor> rhs); // noexcept
template<typename Y> operator Auto_Functor_Ref<Y,Functor>(); // noexcept
template<typename Y> operator Auto_Functor<Y,Functor>(); // noexcept
private:
X * p_;
Functor f_;
};
} // namespace ACE_Utils
ACE_END_VERSIONED_NAMESPACE_DECL
#if defined(__ACE_INLINE__)
# include "ace/Auto_Functor.inl"
#endif /* __ACE_INLINE__ */
#include "ace/Auto_Functor.cpp"
#include /**/ "ace/post.h"
#endif /* ACE_AUTO_FUNCTOR_H*/
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