hxoptsc.h
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- /* ***** BEGIN LICENSE BLOCK *****
- * Source last modified: $Id: hxoptsc.h,v 1.2.32.1 2004/07/09 02:06:18 hubbe Exp $
- *
- * Portions Copyright (c) 1995-2004 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 (the "RPSL") available at
- * http://www.helixcommunity.org/content/rpsl unless you have licensed
- * the file under the current version of the RealNetworks Community
- * Source License (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.
- *
- * Alternatively, the contents of this file may be used under the
- * terms of the GNU General Public License Version 2 or later (the
- * "GPL") in which case the provisions of the GPL are applicable
- * instead of those above. If you wish to allow use of your version of
- * this file only under the terms of the GPL, and not to allow others
- * to use your version of this file under the terms of either the RPSL
- * or RCSL, indicate your decision by deleting the provisions above
- * and replace them with the notice and other provisions required by
- * the GPL. If you do not delete the provisions above, a recipient may
- * use your version of this file under the terms of any one of the
- * RPSL, the RCSL or the GPL.
- *
- * 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_