servrsnd.h
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上传日期:2007-06-06
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- /* ***** 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 _SERVER_RESEND_H_
- #define _SERVER_RESEND_H_
- class HX_deque;
- class BasePacket;
- class RTSPResendBuffer
- {
- public:
- RTSPResendBuffer(UINT32 bufferDuration, UINT32 maxBufferDuration,
- UINT32 growthRate, UINT32 wrapSequenceNumber);
- ~RTSPResendBuffer();
- void Clear();
- void Grow();
- void Add(BasePacket* pPacket);
- void Remove(UINT16 uSeqNo);
- BasePacket* Find(UINT16 uSeqNo, BOOL bIsNAK);
- void SetFirstSequenceNumber(UINT16 uSeqNo);
- UINT32 GetIndex(UINT32 uBaseSequenceNumber, UINT16 uSeqNo);
- UINT32 GetPacketIndex(UINT16 uSeqNo);
- UINT32 GetForceIndex(UINT16 uSeqNo);
- void DiscardExpiredPackets(BOOL bForce,
- UINT32 uParameter);
- void SetBufferDepth(UINT32 uMilliseconds);
- void SetMaxBufferDepth(UINT32 uMilliseconds);
- HX_RESULT UpdateStatistics(UINT32& ulResendSuccess,
- UINT32& ulResendFailure);
- private:
- HX_deque* m_pPacketDeque;
- UINT32 m_bufferDuration;
- UINT32 m_maxBufferDuration;
- UINT32 m_growthRate;
- UINT32 m_wrapSequenceNumber;
- UINT16 m_uFirstSequenceNumber;
- UINT16 m_uForceSequenceNumber;
- UINT32 m_ulResendSuccess;
- UINT32 m_ulResendFailure;
- BOOL m_bSetFirstSequenceNumber;
- };
- inline UINT32
- RTSPResendBuffer::GetPacketIndex(UINT16 uSeqNo)
- {
- return GetIndex(m_uFirstSequenceNumber, uSeqNo);
- }
- inline UINT32
- RTSPResendBuffer::GetForceIndex(UINT16 uSeqNo)
- {
- return GetIndex(m_uForceSequenceNumber, uSeqNo);
- }
- #endif /* _SERVER_RESEND_H_ */