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Diffstat (limited to 'TAO/orbsvcs/orbsvcs/Event/EC_Per_Supplier_Filter.h')
-rw-r--r-- | TAO/orbsvcs/orbsvcs/Event/EC_Per_Supplier_Filter.h | 122 |
1 files changed, 122 insertions, 0 deletions
diff --git a/TAO/orbsvcs/orbsvcs/Event/EC_Per_Supplier_Filter.h b/TAO/orbsvcs/orbsvcs/Event/EC_Per_Supplier_Filter.h new file mode 100644 index 00000000000..62d9836fed2 --- /dev/null +++ b/TAO/orbsvcs/orbsvcs/Event/EC_Per_Supplier_Filter.h @@ -0,0 +1,122 @@ +// -*- C++ -*- +/** + * @file EC_Per_Supplier_Filter.h + * + * $Id$ + * + * @author Carlos O'Ryan (coryan@cs.wustl.edu) + * + * Based on previous work by Tim Harrison (harrison@cs.wustl.edu) and + * other members of the DOC group. More details can be found in: + * + * http://doc.ece.uci.edu/~coryan/EC/index.html + */ + +#ifndef TAO_EC_PER_SUPPLIER_FILTER_H +#define TAO_EC_PER_SUPPLIER_FILTER_H +#include /**/ "ace/pre.h" + +#include "orbsvcs/Event/EC_Supplier_Filter.h" +#include "orbsvcs/Event/EC_Supplier_Filter_Builder.h" +#include /**/ "orbsvcs/Event/event_serv_export.h" + +#if !defined (ACE_LACKS_PRAGMA_ONCE) +# pragma once +#endif /* ACE_LACKS_PRAGMA_ONCE */ + +TAO_BEGIN_VERSIONED_NAMESPACE_DECL + +template<class PROXY> class TAO_ESF_Proxy_Collection; +class TAO_EC_Event_Channel_Base; + +/** + * @class TAO_EC_Per_Supplier_Filter + * + * @brief Filter the events on each supplier. + * + * This is a filtering strategy for the suppliers. In this + * particular case we keep a collection of the consumers that + * could potentially be interested in any event generated by a + * particular supplier. + * This minimizes the amount of consumers touched by the EC when + * dispatching an event. + */ +class TAO_RTEvent_Serv_Export TAO_EC_Per_Supplier_Filter : public TAO_EC_Supplier_Filter +{ +public: + /// Constructor + TAO_EC_Per_Supplier_Filter (TAO_EC_Event_Channel_Base* ec); + + /// Destructor + virtual ~TAO_EC_Per_Supplier_Filter (void); + + // = The TAO_EC_Supplier_Filter methods. + virtual void bind (TAO_EC_ProxyPushConsumer* consumer); + virtual void unbind (TAO_EC_ProxyPushConsumer* consumer); + virtual void connected (TAO_EC_ProxyPushSupplier* supplier + ACE_ENV_ARG_DECL); + virtual void reconnected (TAO_EC_ProxyPushSupplier* supplier + ACE_ENV_ARG_DECL); + virtual void disconnected (TAO_EC_ProxyPushSupplier* supplier + ACE_ENV_ARG_DECL); + virtual void shutdown (ACE_ENV_SINGLE_ARG_DECL); + virtual void push (const RtecEventComm::EventSet& event, + TAO_EC_ProxyPushConsumer *consumer + ACE_ENV_ARG_DECL_NOT_USED); + virtual void push_scheduled_event (RtecEventComm::EventSet &event, + const TAO_EC_QOS_Info &event_info + ACE_ENV_ARG_DECL); + virtual CORBA::ULong _decr_refcnt (void); + virtual CORBA::ULong _incr_refcnt (void); + +private: + /// The event channel, used to locate the set of consumers. + TAO_EC_Event_Channel_Base *event_channel_; + + /// The proxy for the supplier we are bound to. + TAO_EC_ProxyPushConsumer* consumer_; + + /// Keep the collection of proxies for the consumers that may be + /// interested in our events. + TAO_ESF_Proxy_Collection<TAO_EC_ProxyPushSupplier>* collection_; + + /// Reference counting + CORBA::ULong refcnt_; + + /// Locking + TAO_SYNCH_MUTEX lock_; +}; + +// **************************************************************** + +/** + * @class TAO_EC_Per_Supplier_Filter_Builder + * + * @brief Create Per_Supplier_Filter objects + * + */ +class TAO_RTEvent_Serv_Export TAO_EC_Per_Supplier_Filter_Builder : public TAO_EC_Supplier_Filter_Builder +{ +public: + /// constructor.... + TAO_EC_Per_Supplier_Filter_Builder (TAO_EC_Event_Channel_Base* ec); + + // = The TAO_EC_Supplier_Filter_Builder methods... + virtual TAO_EC_Supplier_Filter* + create (RtecEventChannelAdmin::SupplierQOS& qos); + virtual void + destroy (TAO_EC_Supplier_Filter *filter); + +private: + /// The event channel + TAO_EC_Event_Channel_Base* event_channel_; +}; + +TAO_END_VERSIONED_NAMESPACE_DECL + +#if defined (__ACE_INLINE__) +#include "orbsvcs/Event/EC_Per_Supplier_Filter.inl" +#endif /* __ACE_INLINE__ */ + +#include /**/ "ace/post.h" +#endif /* TAO_EC_PER_SUPPLIER_FILTER_H */ |