diff options
Diffstat (limited to 'TAO/orbsvcs/orbsvcs/Notify/Refcountable.h')
-rw-r--r-- | TAO/orbsvcs/orbsvcs/Notify/Refcountable.h | 81 |
1 files changed, 81 insertions, 0 deletions
diff --git a/TAO/orbsvcs/orbsvcs/Notify/Refcountable.h b/TAO/orbsvcs/orbsvcs/Notify/Refcountable.h new file mode 100644 index 00000000000..77a45cd16fa --- /dev/null +++ b/TAO/orbsvcs/orbsvcs/Notify/Refcountable.h @@ -0,0 +1,81 @@ +/* -*- 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 */ |