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// -*- C++ -*-
/**
* @file EC_Sched_Filter_Builder.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_SCHED_FILTER_BUILDER_H
#define TAO_EC_SCHED_FILTER_BUILDER_H
#include /**/ "ace/pre.h"
#include "orbsvcs/Event/EC_Filter_Builder.h"
#if !defined (ACE_LACKS_PRAGMA_ONCE)
# pragma once
#endif /* ACE_LACKS_PRAGMA_ONCE */
#include "orbsvcs/Event/sched_event_export.h"
TAO_BEGIN_VERSIONED_NAMESPACE_DECL
class TAO_EC_Filter;
class TAO_EC_Event_Channel_Base;
/**
* @class TAO_EC_Sched_Filter_Builder
*
* @brief Implement a builder for the fundamental filters.
*
* The sched filtering mechanisms in the Event channel
* (source/type based filtering + disjunctions and conjunctions)
* are constructed using this class.
*/
class TAO_RTSchedEvent_Export TAO_EC_Sched_Filter_Builder : public TAO_EC_Filter_Builder
{
public:
/// constructor.
TAO_EC_Sched_Filter_Builder (TAO_EC_Event_Channel_Base* ec);
/// destructor...
virtual ~TAO_EC_Sched_Filter_Builder (void);
// = The TAO_EC_Filter_Builder methods...
TAO_EC_Filter* build (TAO_EC_ProxyPushSupplier *supplier,
RtecEventChannelAdmin::ConsumerQOS& qos) const;
private:
/// Recursively build the filter tree.
TAO_EC_Filter* recursive_build (TAO_EC_ProxyPushSupplier *supplier,
RtecEventChannelAdmin::ConsumerQOS& qos,
CORBA::ULong& pos,
RtecScheduler::Scheduler_ptr scheduler,
RtecScheduler::handle_t parent_info) const;
/// Build the name recursively...
void recursive_name (RtecEventChannelAdmin::ConsumerQOS& qos,
CORBA::ULong& pos,
RtecScheduler::Scheduler_ptr scheduler,
ACE_CString &name) const;
/// Count the number of children of the current node, i.e. until a
/// conjunction or disjunction starts.
CORBA::ULong count_children (RtecEventChannelAdmin::ConsumerQOS& qos,
CORBA::ULong pos) const;
private:
/// The event channel.
TAO_EC_Event_Channel_Base* event_channel_;
};
TAO_END_VERSIONED_NAMESPACE_DECL
#if defined (__ACE_INLINE__)
#include "orbsvcs/Event/EC_Sched_Filter_Builder.inl"
#endif /* __ACE_INLINE__ */
#include /**/ "ace/post.h"
#endif /* TAO_EC_SCHED_FILTER_BUILDER_H */
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