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/* -*- C++ -*- */
// $Id$
// ==========================================================================
//
// = LIBRARY
// orbsvcs
//
// = FILENAME
// Notify_Buffering_Strategy.h
//
// = DESCRIPTION
// A Strategy class that buffers command objects in a message queue.
//
// = AUTHOR
// Pradeep Gore <pradeep@cs.wustl.edu>
//
// ==========================================================================
#ifndef TAO_NOTIFY_BUFFERING_STRATEGY_H
#define TAO_NOTIFY_BUFFERING_STRATEGY_H
#include "ace/pre.h"
#include "tao/corba.h"
#if !defined (ACE_LACKS_PRAGMA_ONCE)
# pragma once
#endif /* ACE_LACKS_PRAGMA_ONCE */
#include "Notify_AdminProperties.h"
#include "ace/Message_Queue.h"
class TAO_Notify_Command;
class TAO_Notify_Export TAO_Notify_Buffering_Strategy
{
// = TITLE
// TAO_Notify_Buffering_Strategy
//
// = DESCRIPTION
// This buffering strategy buffers and discards events according to the
// policies specified in the CosNotification.idl
//
public:
TAO_Notify_Buffering_Strategy (TAO_Notify_Property_Long* const queue_length);
virtual ~TAO_Notify_Buffering_Strategy ();
virtual void execute (ACE_Message_Queue<ACE_SYNCH>* msg_queue, TAO_Notify_Command *mb TAO_ENV_ARG_DECL, ACE_Time_Value *tv);
// Execute this strategy.
void max_queue_length (CORBA::Long max_queue_length);
// Set the max. queue length.
void order_policy (CORBA::Short order_policy);
// Set the order policy.
void discard_policy (CORBA::Short discard_policy);
// Set the discard policy.
protected:
TAO_Notify_Property_Long* const queue_length_;
// The overall queue length.
CORBA::Long max_queue_length_;
// Discarding policies kicks in when the <queue_length_> exceeds <max_queue_length_>
CORBA::Short order_policy_;
// Order of events in internal buffers.
CORBA::Short discard_policy_;
// Policy to discard when buffers are full.
};
#include "ace/post.h"
#endif /* TAO_NOTIFY_BUFFERING_STRATEGY_H */
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