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/* -*- C++ -*- */
/**
* @file Refcountable.h
*
* $Id$
*
* @author Pradeep Gore <pradeep@oomworks.com>
*
*
*/
#ifndef TAO_NS_REFCOUNTABLE_H
#define TAO_NS_REFCOUNTABLE_H
#include "ace/pre.h"
#include "notify_export.h"
#if !defined (ACE_LACKS_PRAGMA_ONCE)
# pragma once
#endif /* ACE_LACKS_PRAGMA_ONCE */
#include "ace/Synch_T.h"
#include "tao/orbconf.h"
#include "tao/corbafwd.h"
/**
* @class TAO_NS_Refcountable
*
* @brief Thread-safe refounting, calls the <release> method when refcount falls to 0.
*
*/
class TAO_Notify_Export TAO_NS_Refcountable
{
public:
/// Constuctor
TAO_NS_Refcountable (void);
/// Destructor
virtual ~TAO_NS_Refcountable ();
/// This method sigantures deliberately match the RefCounting methods required for ESF Proxy
CORBA::ULong _incr_refcnt (void);
CORBA::ULong _decr_refcnt (void);
/// The release method is called when the refcount reaches 0.
virtual void release (void) = 0;
protected:
/// The reference count.
CORBA::ULong refcount_;
/// The mutex to serialize access to state variables.
TAO_SYNCH_MUTEX lock_;
};
/***********************************************************************/
/**
* @class TAO_NS_Refcountable_Guard
*
* @brief Ref. Count Guard
* Increments the reference count in the constructor, the count is decremented when the guard's is destructor.
*
*/
class TAO_Notify_Export TAO_NS_Refcountable_Guard
{
public:
TAO_NS_Refcountable_Guard (TAO_NS_Refcountable& refcountable);
~TAO_NS_Refcountable_Guard ();
protected:
TAO_NS_Refcountable& refcountable_;
};
#if defined (__ACE_INLINE__)
#include "Refcountable.inl"
#endif /* __ACE_INLINE__ */
#include "ace/post.h"
#endif /* TAO_NS_REFCOUNTABLE_H */
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