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/* -*- C++ -*- */
//=============================================================================
/**
* @file CEC_ConsumerControl.h
*
* $Id$
*
* @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 "tao/Objref_VarOut_T.h"
#if !defined (ACE_LACKS_PRAGMA_ONCE)
# pragma once
#endif /* ACE_LACKS_PRAGMA_ONCE */
#include "orbsvcs/orbsvcs/CosEvent/event_export.h"
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 MANAGMENT
* = LOCKING
* = TODO
*/
class TAO_Event_Export TAO_CEC_ConsumerControl
{
public:
/// Constructor. It does not assume ownership of the <event_channel>
/// parameter.
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
ACE_ENV_ARG_DECL_NOT_USED);
/**
* 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
ACE_ENV_ARG_DECL_NOT_USED);
/// Some system exception was rasied while trying to push an event.
virtual void system_exception (TAO_CEC_ProxyPushSupplier *proxy,
CORBA::SystemException &
ACE_ENV_ARG_DECL_NOT_USED);
};
#if defined (__ACE_INLINE__)
#include "CEC_ConsumerControl.i"
#endif /* __ACE_INLINE__ */
#include /**/ "ace/post.h"
#endif /* TAO_CEC_CONSUMERCONTROL_H */
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