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// -*- C++ -*-
/**
* @file EC_Masked_Type_Filter.h
*
* @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_MASKED_TYPE_FILTER_H
#define TAO_EC_MASKED_TYPE_FILTER_H
#include /**/ "ace/pre.h"
#include "orbsvcs/Event/EC_Filter.h"
#if !defined (ACE_LACKS_PRAGMA_ONCE)
# pragma once
#endif /* ACE_LACKS_PRAGMA_ONCE */
TAO_BEGIN_VERSIONED_NAMESPACE_DECL
/**
* @class TAO_EC_Masked_Type_Filter
*
* @brief A masked type filter.
*
* This filter only accepts events whose type and/or source have
* a given value when a bitmask is applied to them.
* In short the filter checks that:
* (event.header.type & type_mask) == type_value
* and that:
* (event.header.source & source_mask) == source_value
*/
class TAO_RTEvent_Serv_Export TAO_EC_Masked_Type_Filter : public TAO_EC_Filter
{
public:
/// Constructor.
TAO_EC_Masked_Type_Filter (CORBA::ULong source_mask,
CORBA::ULong type_mask,
CORBA::ULong source_value,
CORBA::ULong type_value);
/// Destructor
virtual ~TAO_EC_Masked_Type_Filter ();
// = The TAO_EC_Filter methods, please check the documentation in
// TAO_EC_Filter.
virtual ChildrenIterator begin () const;
virtual ChildrenIterator end () const;
virtual int size () const;
virtual int filter (const RtecEventComm::EventSet& event,
TAO_EC_QOS_Info& qos_info);
virtual int filter_nocopy (RtecEventComm::EventSet& event,
TAO_EC_QOS_Info& qos_info);
virtual void push (const RtecEventComm::EventSet& event,
TAO_EC_QOS_Info& qos_info);
virtual void push_nocopy (RtecEventComm::EventSet& event,
TAO_EC_QOS_Info& qos_info);
virtual void clear ();
virtual CORBA::ULong max_event_size () 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);
private:
TAO_EC_Masked_Type_Filter (const TAO_EC_Masked_Type_Filter&);
TAO_EC_Masked_Type_Filter& operator= (const TAO_EC_Masked_Type_Filter&);
private:
/// The bitmasks
CORBA::ULong source_mask_;
CORBA::ULong type_mask_;
/// The values
CORBA::ULong source_value_;
CORBA::ULong type_value_;
};
TAO_END_VERSIONED_NAMESPACE_DECL
#include /**/ "ace/post.h"
#endif /* TAO_EC_MASKED_TYPE_FILTER_H */
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