/*

 * Licensed to the Apache Software Foundation (ASF) under one or more

 * contributor license agreements.  See the NOTICE file distributed with

 * this work for additional information regarding copyright ownership.

 * The ASF licenses this file to You under the Apache License, Version 2.0

 * (the "License"); you may not use this file except in compliance with

 * the License.  You may obtain a copy of the License at

 * 

 *      http://www.apache.org/licenses/LICENSE-2.0

 * 

 * Unless required by applicable law or agreed to in writing, software

 * distributed under the License is distributed on an "AS IS" BASIS,

 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

 * See the License for the specific language governing permissions and

 * limitations under the License.

 */

/*

 * $Id: Janitor.hpp 568078 2007-08-21 11:43:25Z amassari $

 */

#if !defined(JANITOR_HPP)

#define JANITOR_HPP

#include <xercesc/util/XMemory.hpp>

#include <xercesc/framework/MemoryManager.hpp>

XERCES_CPP_NAMESPACE_BEGIN

template <class T> class Janitor : public XMemory

{

public  :

    // -----------------------------------------------------------------------

    //  Constructors and Destructor

    // -----------------------------------------------------------------------

    Janitor(T* const toDelete);

    ~Janitor();

    // -----------------------------------------------------------------------

    //  Public, non-virtual methods

    // -----------------------------------------------------------------------

    void orphan();

    //  small amount of auto_ptr compatibility

    T& operator*() const;

    T* operator->() const;

    T* get() const;

    T* release();

    void reset(T* p = 0);

    bool isDataNull();

private :

    // -----------------------------------------------------------------------

    //  Unimplemented constructors and operators

    // -----------------------------------------------------------------------

    Janitor();

    Janitor(const Janitor<T>&);

    Janitor<T>& operator=(const Janitor<T>&);

    // -----------------------------------------------------------------------

    //  Private data members

    //

    //  fData

    //      This is the pointer to the object or structure that must be

    //      destroyed when this object is destroyed.

    // -----------------------------------------------------------------------

    T*  fData;

};

template <class T> class ArrayJanitor : public XMemory

{

public  :

    // -----------------------------------------------------------------------

    //  Constructors and Destructor

    // -----------------------------------------------------------------------

    ArrayJanitor(T* const toDelete);

    ArrayJanitor(T* const toDelete, MemoryManager* const manager);

    ~ArrayJanitor();

    // -----------------------------------------------------------------------

    //  Public, non-virtual methods

    // -----------------------------------------------------------------------

    void orphan();

	//	small amount of auto_ptr compatibility

	T&	operator[](int index) const;

	T*	get() const;

	T*	release();

	void reset(T* p = 0);

	void reset(T* p, MemoryManager* const manager);

private :

    // -----------------------------------------------------------------------

    //  Unimplemented constructors and operators

    // -----------------------------------------------------------------------

	ArrayJanitor();

    ArrayJanitor(const ArrayJanitor<T>& copy);

    ArrayJanitor<T>& operator=(const ArrayJanitor<T>& copy);    

    // -----------------------------------------------------------------------

    //  Private data members

    //

    //  fData

    //      This is the pointer to the object or structure that must be

    //      destroyed when this object is destroyed.

    // -----------------------------------------------------------------------

    T*  fData;

    MemoryManager* fMemoryManager;

};

template <class T> class JanitorMemFunCall

{

public  :

    typedef void (T::*MFPT) ();

    // -----------------------------------------------------------------------

    //  Constructors and Destructor

    // -----------------------------------------------------------------------

    JanitorMemFunCall(

        T*      object,

        MFPT    toCall);

    ~JanitorMemFunCall();

    // -----------------------------------------------------------------------

    //  Public, non-virtual methods

    // -----------------------------------------------------------------------

	void release();

private :

    // -----------------------------------------------------------------------

    //  Unimplemented constructors and operators

    // -----------------------------------------------------------------------

    JanitorMemFunCall();

    JanitorMemFunCall(const JanitorMemFunCall<T>&);

    JanitorMemFunCall<T>& operator=(const JanitorMemFunCall<T>&);

    // -----------------------------------------------------------------------

    //  Private data members

    //

    //  fObject

    //      This is the pointer to the object for which we will call the

    //      member function when this object is destroyed.

    // -----------------------------------------------------------------------

    T*      fObject;

    MFPT    fToCall;

};

XERCES_CPP_NAMESPACE_END

#if !defined(XERCES_TMPLSINC)

#include <xercesc/util/Janitor.c>

#endif

#endif