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// -*- 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);
virtual void reconnected (TAO_EC_ProxyPushSupplier* supplier);
virtual void disconnected (TAO_EC_ProxyPushSupplier* supplier);
virtual void shutdown (void);
virtual void push (const RtecEventComm::EventSet& event,
TAO_EC_ProxyPushConsumer *consumer);
virtual void push_scheduled_event (RtecEventComm::EventSet &event,
const TAO_EC_QOS_Info &event_info);
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 */
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