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/* -*- C++ -*- */
/**
* @file Dispatcher_Impl.h
*
* @author Venkita Subramonian (venkita@cs.wustl.edu)
*
* Based on previous work by Tim Harrison (harrison@cs.wustl.edu),
* Chris Gill, Carlos O'Ryan and other members of the DOC group.
*/
#ifndef DISPATCHER_IMPL_H
#define DISPATCHER_IMPL_H
#include /**/ "ace/pre.h"
#include "Kokyu_defs.h"
#if !defined (ACE_LACKS_PRAGMA_ONCE)
# pragma once
#endif /* ACE_LACKS_PRAGMA_ONCE */
#include "kokyu_export.h"
namespace Kokyu
{
/**
* @class Dispatcher
*
* @brief Base class for EC dispatcher implementations
*
* The responsibility of this class is to act as a common base class
* for different EC dispatcher implementations. This is an
* abstract base class and cannot be instantiated.
*/
class Kokyu_Export Dispatcher_Impl
{
public:
/// Configure the dispatcher.
int init (const Dispatcher_Attributes&);
int activate ();
/// dispatch a command (eg. event) based on the QoS supplied.
int dispatch (const Dispatch_Command*,
const QoSDescriptor&);
/// shutdown the dispatcher.
int shutdown ();
virtual ~Dispatcher_Impl();
private:
//following an idiom to avoid public virtual functions.
//instead make them private and use the template method
//pattern - "Virtually Yours" article in CUJ Experts Forum
virtual int init_i (const Dispatcher_Attributes&) =0;
virtual int dispatch_i (const Dispatch_Command*,
const QoSDescriptor&) =0;
virtual int shutdown_i () =0;
virtual int activate_i () =0;
protected:
int thr_creation_flags_;
};
} //end of namespace
#if defined (__ACE_INLINE__)
#include "Dispatcher_Impl.inl"
#endif /* __ACE_INLINE__ */
#include /**/ "ace/post.h"
#endif /* DISPATCHER_IMPL_H */
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