hxoptsc.h
上传用户:zhongxx05
上传日期:2007-06-06
资源大小:33641k
文件大小:6k
- /* ***** BEGIN LICENSE BLOCK *****
- * Version: RCSL 1.0/RPSL 1.0
- *
- * Portions Copyright (c) 1995-2002 RealNetworks, Inc. All Rights Reserved.
- *
- * The contents of this file, and the files included with this file, are
- * subject to the current version of the RealNetworks Public Source License
- * Version 1.0 (the "RPSL") available at
- * http://www.helixcommunity.org/content/rpsl unless you have licensed
- * the file under the RealNetworks Community Source License Version 1.0
- * (the "RCSL") available at http://www.helixcommunity.org/content/rcsl,
- * in which case the RCSL will apply. You may also obtain the license terms
- * directly from RealNetworks. You may not use this file except in
- * compliance with the RPSL or, if you have a valid RCSL with RealNetworks
- * applicable to this file, the RCSL. Please see the applicable RPSL or
- * RCSL for the rights, obligations and limitations governing use of the
- * contents of the file.
- *
- * This file is part of the Helix DNA Technology. RealNetworks is the
- * developer of the Original Code and owns the copyrights in the portions
- * it created.
- *
- * This file, and the files included with this file, is distributed and made
- * available on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
- * EXPRESS OR IMPLIED, AND REALNETWORKS HEREBY DISCLAIMS ALL SUCH WARRANTIES,
- * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, FITNESS
- * FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
- *
- * Technology Compatibility Kit Test Suite(s) Location:
- * http://www.helixcommunity.org/content/tck
- *
- * Contributor(s):
- *
- * ***** END LICENSE BLOCK ***** */
- #ifndef _IHXOptimizedScheduler_
- #define _IHXOptimizedScheduler_
- class ClientPQ;
- class CHXID;
- class HXMutex;
- struct IUnknown;
- struct IHXScheduler;
- typedef struct _HXTimeval HXTimeval;
- #include "timeval.h"
- class CAsyncTimer;
- // HXOptimizedSchedulerBase is a base class that allows the core
- // to control the scheduler object without knowing the actual
- // implementation of the object.
- class HXOptimizedSchedulerBase : public IHXOptimizedScheduler
- {
- public:
- /*
- * IUnknown methods
- */
- STDMETHOD(QueryInterface) (THIS_
- REFIID riid,
- void** ppvObj) PURE;
- STDMETHOD_(ULONG32,AddRef) (THIS) PURE;
- STDMETHOD_(ULONG32,Release) (THIS) PURE;
- /*
- * IHXOptimizedScheduler methods
- */
- /************************************************************************
- * Method:
- * IHXOptimizedScheduler::RelativeEnter
- * Purpose:
- * Schedule a callback to be executed "ms" milliseconds from now
- * This function is less percise then AbsoluteEnter and should only
- * be used when accurate timing is not critical.
- */
- STDMETHOD_(CallbackHandle,RelativeEnter) (THIS_
- IHXCallback* pCallback,
- UINT32 ms) PURE;
- /************************************************************************
- * Method:
- * IHXOptimizedScheduler::AbsoluteEnter
- * Purpose:
- * Schedule a callback to be executed at time "tVal".
- */
- STDMETHOD_(CallbackHandle,AbsoluteEnter) (THIS_
- IHXCallback* pCallback,
- HXTimeval tVal) PURE;
- /************************************************************************
- * Method:
- * IHXOptimizedScheduler::Remove
- * Purpose:
- * Remove a callback from the scheduler.
- */
- STDMETHOD(Remove) (THIS_
- CallbackHandle Handle) PURE;
- /************************************************************************
- * Method:
- * IHXOptimizedScheduler::GetCurrentSchedulerTime
- * Purpose:
- * Gives the current time (in the timeline of the scheduler).
- */
- STDMETHOD_(HXTimeval,GetCurrentSchedulerTime) (THIS) PURE;
- // Scheduler control functions
- virtual HX_RESULT StartScheduler() PURE;
- virtual void StopScheduler() PURE;
- };
- class HXOptimizedScheduler : public HXOptimizedSchedulerBase
- {
- public:
- HXOptimizedScheduler(IUnknown* pContext);
- ~HXOptimizedScheduler();
- /*
- * IUnknown methods
- */
- STDMETHOD(QueryInterface) (THIS_
- REFIID riid,
- void** ppvObj);
- STDMETHOD_(ULONG32,AddRef) (THIS);
- STDMETHOD_(ULONG32,Release) (THIS);
- /*
- * HXOptimizedScheduler methods
- */
- /************************************************************************
- * Method:
- * IHXOptimizedScheduler::RelativeEnter
- * Purpose:
- * enter objects in the service queue offset from time now
- */
- STDMETHOD_(CallbackHandle,RelativeEnter) (THIS_
- IHXCallback* pCallback,
- UINT32 ms);
- /************************************************************************
- * Method:
- * IHXOptimizedScheduler::AbsoluteEnter
- * Purpose:
- * enter objects in the service queue at absolute time
- */
- STDMETHOD_(CallbackHandle,AbsoluteEnter) (THIS_
- IHXCallback* pCallback,
- HXTimeval tVal);
- /************************************************************************
- * Method:
- * IHXOptimizedScheduler::Remove
- * Purpose:
- * remove objects from the service queue
- */
- STDMETHOD(Remove) (THIS_
- CallbackHandle Handle);
- /************************************************************************
- * Method:
- * IHXOptimizedScheduler::GetCurrentSchedulerTime
- * Purpose:
- * gives the current time in the timeline of the scheduler...
- */
- STDMETHOD_(HXTimeval,GetCurrentSchedulerTime) (THIS);
- HX_RESULT ExecuteCurrentFunctions();
- HX_RESULT StartScheduler();
-
- void StopScheduler();
- BOOL GetNextEventDueTime(UINT32& ulNumMs);
- protected:
- LONG32 m_lRefCount;
- ClientPQ* m_pPQ;
- CHXID* m_pID;
- IUnknown* m_pContext;
- IHXScheduler* m_pScheduler;
- HXTimeval m_CurrentTimeVal;
- UINT32 m_ulLastUpdateTime;
- UINT32 m_ulLastSyncTime;
- HXMutex* m_pMutex;
- /* Used to schedule events in a separate thread */
- friend void* ThreadRoutine (void * pArg);
- inline void UpdateCurrentTime(Timeval* pNow);
- HXThread* m_pThread;
- HXEvent* m_pQuitEvent;
- HXEvent* m_pSleepEvent;
- ULONG32 m_ulCurrentGranularity;
- BOOL m_bIsDone;
- };
- #endif // _IHXOptimizedScheduler_