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// $Id$
/* -*- C++ -*- */
//=============================================================================
/**
* @file CEC_Dispatching.h
*
* $Id$
*
* @author Carlos O'Ryan (coryan@cs.wustl.edu)
*/
//=============================================================================
#ifndef TAO_CEC_DISPATCHING_H
#define TAO_CEC_DISPATCHING_H
#include /**/ "ace/pre.h"
#include "orbsvcs/orbsvcs/CosEventCommC.h"
#include "event_export.h"
#if !defined (ACE_LACKS_PRAGMA_ONCE)
# pragma once
#endif /* ACE_LACKS_PRAGMA_ONCE */
class TAO_CEC_ProxyPushSupplier;
#if defined (TAO_HAS_TYPED_EVENT_CHANNEL)
class TAO_CEC_TypedEvent;
#endif /* TAO_HAS_TYPED_EVENT_CHANNEL */
/**
* @class TAO_CEC_Dispatching
*
* @brief Define the interface for the dispatching strategies.
*
* The EC may be configured with different dispatching strategies,
* for instance, it can use a pool of threads to dispatch the
* events, or a set of queues with threads at different priorities
* for each queue or can simply push the event to the consumer in
* FIFO order.
*/
class TAO_Event_Export TAO_CEC_Dispatching
{
public:
/// destructor...
virtual ~TAO_CEC_Dispatching (void);
/// Initialize all the data structures, activate any internal threads,
/// etc.
virtual void activate (void) = 0;
/**
* Deactivate any internal threads and cleanup internal data
* structures, it should only return once the threads have finished
* their jobs.
*/
virtual void shutdown (void) = 0;
/// The consumer represented by <proxy> should receive <event>.
virtual void push (TAO_CEC_ProxyPushSupplier *proxy,
const CORBA::Any &event
ACE_ENV_ARG_DECL_WITH_DEFAULTS) = 0;
virtual void push_nocopy (TAO_CEC_ProxyPushSupplier *proxy,
CORBA::Any &event
ACE_ENV_ARG_DECL_WITH_DEFAULTS) = 0;
#if defined (TAO_HAS_TYPED_EVENT_CHANNEL)
virtual void invoke (TAO_CEC_ProxyPushSupplier *proxy,
const TAO_CEC_TypedEvent &typed_event
ACE_ENV_ARG_DECL_WITH_DEFAULTS) = 0;
virtual void invoke_nocopy (TAO_CEC_ProxyPushSupplier *proxy,
TAO_CEC_TypedEvent &typed_event
ACE_ENV_ARG_DECL_WITH_DEFAULTS) = 0;
#endif /* TAO_HAS_TYPED_EVENT_CHANNEL */
};
// ****************************************************************
/**
* @class TAO_CEC_Reactive_Dispatching
*
* @brief Dispatch using the caller thread.
*
* The events are dispatched in FIFO ordering, using the invoking
* thread to push the event to the consumer.
*/
class TAO_Event_Export TAO_CEC_Reactive_Dispatching : public TAO_CEC_Dispatching
{
public:
/// The scheduler is used to find the range of priorities and similar
/// info.
TAO_CEC_Reactive_Dispatching (void);
// = The CEC_Dispatching methods.
virtual void activate (void);
virtual void shutdown (void);
virtual void push (TAO_CEC_ProxyPushSupplier *proxy,
const CORBA::Any &event
ACE_ENV_ARG_DECL_WITH_DEFAULTS);
virtual void push_nocopy (TAO_CEC_ProxyPushSupplier *proxy,
CORBA::Any &event
ACE_ENV_ARG_DECL_WITH_DEFAULTS);
#if defined (TAO_HAS_TYPED_EVENT_CHANNEL)
virtual void invoke (TAO_CEC_ProxyPushSupplier *proxy,
const TAO_CEC_TypedEvent &typed_event
ACE_ENV_ARG_DECL_WITH_DEFAULTS);
virtual void invoke_nocopy (TAO_CEC_ProxyPushSupplier *proxy,
TAO_CEC_TypedEvent &typed_event
ACE_ENV_ARG_DECL_WITH_DEFAULTS);
#endif /* TAO_HAS_TYPED_EVENT_CHANNEL */
};
#if defined (__ACE_INLINE__)
#include "CEC_Dispatching.i"
#endif /* __ACE_INLINE__ */
#include /**/ "ace/post.h"
#endif /* TAO_CEC_DISPATCHING_H */
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