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/* -*- C++ -*- */
/**
* @file DSRT_Dispatcher_Impl.h
*
* $Id$
*
*/
#ifndef DSRT_DISPATCHER_IMPL_H
#define DSRT_DISPATCHER_IMPL_H
#include "ace/pre.h"
#if !defined (ACE_LACKS_PRAGMA_ONCE)
//# pragma once
#endif /* ACE_LACKS_PRAGMA_ONCE */
#include "Kokyu_dsrt.h"
namespace Kokyu
{
/**
* @class DSRT_Dispatcher
*
* @brief Base class for DSRT dispatcher implementations
*
* The responsibility of this class is to act as a common base class
* for different DSRT dispatcher implementations. This is an
* abstract base class and cannot be instantiated.
*/
template <class DSRT_Scheduler_Traits>
class DSRT_Dispatcher_Impl
{
public:
typedef typename DSRT_Scheduler_Traits::Guid_t Guid_t;
typedef typename DSRT_Scheduler_Traits::QoSDescriptor_t DSRT_QoSDescriptor;
/// Configure the DSRT dispatcher.
int init (const DSRT_ConfigInfo&);
/// Schedule a thread dynamically based on the qos info supplied.
int schedule (Guid_t guid,
const DSRT_QoSDescriptor&);
/// Update the schedule for a thread. This could alter the current
/// schedule.
int update_schedule (Guid_t guid,
const DSRT_QoSDescriptor&);
/// Inform the scheduler that the caller thread is about to
/// block. This could alter the current schedule.
int update_schedule (Guid_t guid, Block_Flag_t flag);
/// Cancel the schedule for a thread. This could alter the current
/// schedule.
int cancel_schedule (Guid_t guid);
/// Shut down the dispatcher. The dispatcher will stop processing
/// requests.
int shutdown ();
virtual ~DSRT_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 DSRT_ConfigInfo&)=0;
virtual int schedule_i (Guid_t guid,
const DSRT_QoSDescriptor&)=0;
virtual int update_schedule_i (Guid_t guid,
const DSRT_QoSDescriptor&)=0;
virtual int update_schedule_i (Guid_t guid, Block_Flag_t flag)=0;
virtual int cancel_schedule_i (Guid_t guid)=0;
virtual int shutdown_i ()=0;
};
} //end of namespace
#if defined (__ACE_INLINE__)
#include "DSRT_Dispatcher_Impl_T.i"
#endif /* __ACE_INLINE__ */
#if defined (ACE_TEMPLATES_REQUIRE_SOURCE)
#include "DSRT_Dispatcher_Impl_T.cpp"
#endif /* ACE_TEMPLATES_REQUIRE_SOURCE */
#if defined (ACE_TEMPLATES_REQUIRE_PRAGMA)
#pragma implementation ("DSRT_Dispatcher_Impl_T.cpp")
#endif /* ACE_TEMPLATES_REQUIRE_PRAGMA */
#include "ace/post.h"
#endif /* DSRT_DISPATCHER_IMPL_H */
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