diff options
Diffstat (limited to 'TAO/orbsvcs/orbsvcs/ESF/ESF_Copy_On_Write.h')
| -rw-r--r-- | TAO/orbsvcs/orbsvcs/ESF/ESF_Copy_On_Write.h | 184 |
1 files changed, 0 insertions, 184 deletions
diff --git a/TAO/orbsvcs/orbsvcs/ESF/ESF_Copy_On_Write.h b/TAO/orbsvcs/orbsvcs/ESF/ESF_Copy_On_Write.h deleted file mode 100644 index a34659b6e57..00000000000 --- a/TAO/orbsvcs/orbsvcs/ESF/ESF_Copy_On_Write.h +++ /dev/null @@ -1,184 +0,0 @@ -// -*- C++ -*- - -/** - * @file ESF_Copy_On_Write.h - * - * $Id$ - * - * @author Carlos O'Ryan (coryan@cs.wustl.edu) - * - * http://doc.ece.uci.edu/~coryan/EC/index.html - */ - -#ifndef TAO_ESF_COPY_ON_WRITE_H -#define TAO_ESF_COPY_ON_WRITE_H - -#include "orbsvcs/ESF/ESF_Proxy_Collection.h" - -#include "tao/Basic_Types.h" - -#if !defined (ACE_LACKS_PRAGMA_ONCE) -# pragma once -#endif /* ACE_LACKS_PRAGMA_ONCE */ - -TAO_BEGIN_VERSIONED_NAMESPACE_DECL - -template<class COLLECTION, class ITERATOR> -class TAO_ESF_Copy_On_Write_Collection -{ -public: - TAO_ESF_Copy_On_Write_Collection (void); - - /// Increment the reference count - CORBA::ULong _incr_refcnt (void); - - /// Decrement the reference count - CORBA::ULong _decr_refcnt (void); - - /// The actual collection - COLLECTION collection; - -private: - /// The reference count - CORBA::ULong refcount_; -}; - -// **************************************************************** - -/** - * @class TAO_ESF_Copy_On_Write_Read_Guard - * - * @brief TAO_ESF_Copy_On_Write_Read_Guard - * - * This helper class atomically increments the reference count of - * a TAO_ESF_Copy_On_Write_Collection and reads the current - * collection in the Copy_On_Write class. - */ -template<class COLLECTION, class ITERATOR, class ACE_LOCK> -class TAO_ESF_Copy_On_Write_Read_Guard -{ -public: - /// Constructor - typedef TAO_ESF_Copy_On_Write_Collection<COLLECTION,ITERATOR> Collection; - TAO_ESF_Copy_On_Write_Read_Guard (ACE_LOCK &mutex, - Collection *&collection); - - /// Destructor - ~TAO_ESF_Copy_On_Write_Read_Guard (void); - - Collection *collection; - -private: - ACE_LOCK &mutex; -}; - -// **************************************************************** - -/** - * @class TAO_ESF_Copy_On_Write_Write_Guard - * - * @brief TAO_ESF_Copy_On_Write_Write_Guard - * - * This helper class atomically increments the reference count of - * a TAO_ESF_Copy_On_Write_Collection and reads the current - * collection in the Copy_On_Write class. - */ -template<class COLLECTION, class ITERATOR, ACE_SYNCH_DECL> -class TAO_ESF_Copy_On_Write_Write_Guard -{ -public: - /// Constructor - typedef TAO_ESF_Copy_On_Write_Collection<COLLECTION,ITERATOR> Collection; - TAO_ESF_Copy_On_Write_Write_Guard (ACE_SYNCH_MUTEX_T &mutex, - ACE_SYNCH_CONDITION_T &cond, - int &pending_writes, - int &writing_flag, - Collection*& collection); - - /// Destructor - ~TAO_ESF_Copy_On_Write_Write_Guard (void); - - Collection *copy; - -private: - ACE_SYNCH_MUTEX_T &mutex; - ACE_SYNCH_CONDITION_T &cond; - int &pending_writes; - int &writing_flag; - Collection *&collection; -}; - -// **************************************************************** - -/** - * @class TAO_ESF_Copy_On_Write - * - * @brief TAO_ESF_Copy_On_Write - * - * Implement the Copy_On_Write protocol - * The class is parametric on the kind of collection and locking - * mechanism used. - */ -template<class PROXY, class COLLECTION, class ITERATOR, ACE_SYNCH_DECL> -class TAO_ESF_Copy_On_Write : public TAO_ESF_Proxy_Collection<PROXY> -{ -public: - /// Constructor - typedef TAO_ESF_Copy_On_Write_Read_Guard<COLLECTION,ITERATOR,ACE_SYNCH_MUTEX_T> Read_Guard; - typedef TAO_ESF_Copy_On_Write_Write_Guard<COLLECTION,ITERATOR,ACE_SYNCH_USE> Write_Guard; - TAO_ESF_Copy_On_Write (void); - - /// Destructor - ~TAO_ESF_Copy_On_Write (void); - - // = The TAO_ESF_Proxy methods - virtual void for_each (TAO_ESF_Worker<PROXY> *worker - ACE_ENV_ARG_DECL); - virtual void connected (PROXY *proxy - ACE_ENV_ARG_DECL); - virtual void reconnected (PROXY *proxy - ACE_ENV_ARG_DECL); - virtual void disconnected (PROXY *proxy - ACE_ENV_ARG_DECL); - virtual void shutdown (ACE_ENV_SINGLE_ARG_DECL); - -private: - typedef TAO_ESF_Copy_On_Write_Collection<COLLECTION,ITERATOR> Collection; - - /// A mutex to serialize access to the collection pointer. - ACE_SYNCH_MUTEX_T mutex_; - - /// Number of pending writes - int pending_writes_; - - /** - * If non-zero then a thread is changing the collection. Many - * threads can use the collection simulatenously, but only one - * change it. - */ - int writing_; - - /// A condition variable to wait to synchronize multiple writers. - ACE_SYNCH_CONDITION_T cond_; - - /// The collection, with reference counting added - Collection *collection_; -}; - -// **************************************************************** - -TAO_END_VERSIONED_NAMESPACE_DECL - -#if defined (__ACE_INLINE__) -#include "orbsvcs/ESF/ESF_Copy_On_Write.i" -#endif /* __ACE_INLINE__ */ - -#if defined (ACE_TEMPLATES_REQUIRE_SOURCE) -#include "orbsvcs/ESF/ESF_Copy_On_Write.cpp" -#endif /* ACE_TEMPLATES_REQUIRE_SOURCE */ - -#if defined (ACE_TEMPLATES_REQUIRE_PRAGMA) -#pragma implementation ("ESF_Copy_On_Write.cpp") -#endif /* ACE_TEMPLATES_REQUIRE_PRAGMA */ - -#endif /* TAO_ESF_COPY_ON_WRITE_H */ |