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#pragma once
/*
* Copyright (C) 2005-2013 Team XBMC
* http://xbmc.org
*
* This Program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2, or (at your option)
* any later version.
*
* This Program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with XBMC; see the file COPYING. If not, see
* <http://www.gnu.org/licenses/>.
*
*/
#include "IFile.h"
#include "CacheStrategy.h"
#include "threads/CriticalSection.h"
#include "File.h"
#include "threads/Thread.h"
#include <atomic>
namespace XFILE
{
class CFileCache : public IFile, public CThread
{
public:
CFileCache(const unsigned int flags);
CFileCache(CCacheStrategy *pCache, bool bDeleteCache = true);
virtual ~CFileCache();
void SetCacheStrategy(CCacheStrategy *pCache, bool bDeleteCache = true);
// CThread methods
virtual void Process();
virtual void OnExit();
virtual void StopThread(bool bWait = true);
// IFIle methods
virtual bool Open(const CURL& url);
virtual void Close();
virtual bool Exists(const CURL& url);
virtual int Stat(const CURL& url, struct __stat64* buffer);
virtual ssize_t Read(void* lpBuf, size_t uiBufSize);
virtual int64_t Seek(int64_t iFilePosition, int iWhence);
virtual int64_t GetPosition();
virtual int64_t GetLength();
virtual int IoControl(EIoControl request, void* param);
IFile *GetFileImp();
virtual std::string GetContent();
virtual std::string GetContentCharset(void);
private:
CCacheStrategy *m_pCache;
bool m_bDeleteCache;
int m_seekPossible;
CFile m_source;
std::string m_sourcePath;
CEvent m_seekEvent;
CEvent m_seekEnded;
int64_t m_nSeekResult;
int64_t m_seekPos;
int64_t m_readPos;
int64_t m_writePos;
unsigned m_chunkSize;
unsigned m_writeRate;
unsigned m_writeRateActual;
bool m_cacheFull;
std::atomic<int64_t> m_fileSize;
unsigned int m_flags;
CCriticalSection m_sync;
};
}
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