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Rocky5
921f9fe9f8
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61 lines
1.6 KiB
C++
61 lines
1.6 KiB
C++
/*
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* Copyright (C) 2005-2013 Team XBMC
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* http://xbmc.org
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*
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* This Program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2, or (at your option)
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* any later version.
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*
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* This Program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with XBMC; see the file COPYING. If not, see
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* <http://www.gnu.org/licenses/>.
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*
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*/
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#ifndef CACHEMEMBUFFER_H
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#define CACHEMEMBUFFER_H
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#include "CacheStrategy.h"
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#include "utils/CriticalSection.h"
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#include "utils/Event.h"
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#include "utils/RingBuffer.h"
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/**
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@author Team XBMC
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*/
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namespace XFILE {
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class MemBufferCache : public CCacheStrategy
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{
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public:
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MemBufferCache();
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virtual ~MemBufferCache();
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virtual int Open() ;
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virtual void Close();
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virtual int WriteToCache(const char *pBuffer, size_t iSize) ;
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virtual int ReadFromCache(char *pBuffer, size_t iMaxSize) ;
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virtual int64_t WaitForData(unsigned int iMinAvail, unsigned int iMillis) ;
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virtual int64_t Seek(int64_t iFilePosition) ;
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virtual void Reset(int64_t iSourcePosition) ;
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protected:
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int64_t m_nStartPosition;
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CRingBuffer m_buffer;
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CRingBuffer m_HistoryBuffer;
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CRingBuffer m_forwardBuffer; // for seek cases, to store data already read
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CCriticalSection m_sync;
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CEvent m_written;
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};
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} // namespace XFILE
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#endif
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