// -*- C++ -*-
/**
* @file EC_Negation_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_NEGATION_FILTER_H
#define TAO_EC_NEGATION_FILTER_H
#include /**/ "ace/pre.h"
#include "orbsvcs/Event/EC_Filter.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
/**
* @class TAO_EC_Negation_Filter
*
* @brief The negation filter.
*
* This filter accepts all the events rejected by its child, and
* rejects any events accepted by the child.
*
*
Memory Management
* It assumes ownership of its child.
*/
class TAO_RTEvent_Serv_Export TAO_EC_Negation_Filter : public TAO_EC_Filter
{
public:
/// Constructor. It assumes ownership of the child.
TAO_EC_Negation_Filter (TAO_EC_Filter* child);
/// Destructor
virtual ~TAO_EC_Negation_Filter (void);
// = The TAO_EC_Filter methods, please check the documentation in
// TAO_EC_Filter.
virtual ChildrenIterator begin (void) const;
virtual ChildrenIterator end (void) const;
virtual int size (void) const;
virtual int filter (const RtecEventComm::EventSet& event,
TAO_EC_QOS_Info& qos_info
ACE_ENV_ARG_DECL);
virtual int filter_nocopy (RtecEventComm::EventSet& event,
TAO_EC_QOS_Info& qos_info
ACE_ENV_ARG_DECL);
virtual void push (const RtecEventComm::EventSet& event,
TAO_EC_QOS_Info& qos_info
ACE_ENV_ARG_DECL);
virtual void push_nocopy (RtecEventComm::EventSet& event,
TAO_EC_QOS_Info& qos_info
ACE_ENV_ARG_DECL);
virtual void clear (void);
virtual CORBA::ULong max_event_size (void) const;
virtual int can_match (const RtecEventComm::EventHeader& header) const;
virtual int add_dependencies (const RtecEventComm::EventHeader& header,
const TAO_EC_QOS_Info &qos_info
ACE_ENV_ARG_DECL);
private:
TAO_EC_Negation_Filter (const TAO_EC_Negation_Filter&);
TAO_EC_Negation_Filter& operator= (const TAO_EC_Negation_Filter&);
private:
/// The child
TAO_EC_Filter* child_;
};
TAO_END_VERSIONED_NAMESPACE_DECL
#include /**/ "ace/post.h"
#endif /* TAO_EC_NEGATION_FILTER_H */