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// -*- C++ -*-
//=============================================================================
/**
* @file CEC_ConsumerControl.h
*
* @author Carlos O'Ryan (coryan@cs.wustl.edu)More details can be found in:http://www.cs.wustl.edu/~coryan/EC/index.html
*/
//=============================================================================
#ifndef TAO_CEC_CONSUMERCONTROL_H
#define TAO_CEC_CONSUMERCONTROL_H
#include /**/ "ace/pre.h"
#include "orbsvcs/CosEvent/event_serv_export.h"
#if !defined (ACE_LACKS_PRAGMA_ONCE)
# pragma once
#endif /* ACE_LACKS_PRAGMA_ONCE */
#include "tao/PortableServer/PortableServer.h"
TAO_BEGIN_VERSIONED_NAMESPACE_DECL
class TAO_CEC_EventChannel;
class TAO_CEC_ProxyPushSupplier;
class TAO_CEC_ProxyPullSupplier;
namespace CORBA
{
class SystemException;
}
/**
* @class TAO_CEC_ConsumerControl
*
* @brief ConsumerControl
*
* Defines the interface for the consumer control strategy.
* This strategy handles misbehaving or failing consumers.
* = MEMORY MANAGEMENT
* = LOCKING
* = TODO
*/
class TAO_Event_Serv_Export TAO_CEC_ConsumerControl
{
public:
/// Constructor
TAO_CEC_ConsumerControl (void);
/// Destructor
virtual ~TAO_CEC_ConsumerControl (void);
/// Activate any internal threads or timers used to poll the state of
/// the consumers
virtual int activate (void);
virtual int shutdown (void);
/**
* When pushing an event to the consumer a CORBA::OBJECT_NOT_EXIST
* exception was raised. The only interpretation is that the object
* has been destroyed. The strategy has to (at the very least),
* reclaim all the resources attached to that object.
*/
virtual void consumer_not_exist (TAO_CEC_ProxyPushSupplier *proxy);
/**
* Invoked by helper classes when they detect that a consumer no
* longer exists (i.e. _non_existent() returns true and/or the
* CORBA::OBJECT_NOT_EXIST exception has been raised).
*/
virtual void consumer_not_exist (TAO_CEC_ProxyPullSupplier *proxy);
/// Some system exception was rasied while trying to push an event.
virtual void system_exception (TAO_CEC_ProxyPushSupplier *proxy,
CORBA::SystemException &);
/// Do we need to disconnect this supplier? The parameter type for
/// proxy is PortableServer::ServantBase* due to the fact that this
/// method will be used for TAO_CEC_ProxyPushSupplier's and
/// TAO_CEC_ProxyPullSupplier's.
virtual bool need_to_disconnect (PortableServer::ServantBase* proxy);
/// Allow others to inform us when a send or receive was successful.
virtual void successful_transmission (PortableServer::ServantBase* proxy);
};
TAO_END_VERSIONED_NAMESPACE_DECL
#include /**/ "ace/post.h"
#endif /* TAO_CEC_CONSUMERCONTROL_H */
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