3bfa549e8b
- using std::string; - using std::wstring; - using std::ostream; - using std::istream; - using std::iostream; - using std::ostrstream; - using std::istrstream; - using std::fstream;
68 lines
1.7 KiB
C++
68 lines
1.7 KiB
C++
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#ifndef _TBIGMEMORYMANAGER_
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#define _TBIGMEMORYMANAGER_
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class Chunkinfo;
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#undef DVAPI
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#undef DVVAR
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#ifdef TSYSTEM_EXPORTS
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#define DVAPI DV_EXPORT_API
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#define DVVAR DV_EXPORT_VAR
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#else
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#define DVAPI DV_IMPORT_API
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#define DVVAR DV_IMPORT_VAR
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#endif
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#include "tcommon.h"
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#include "tthreadmessage.h"
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class TRaster;
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class DVAPI TBigMemoryManager
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{
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TThread::Mutex m_mutex;
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UCHAR *m_theMemory;
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std::map<UCHAR *, Chunkinfo> m_chunks;
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UCHAR *allocate(UINT &size);
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TUINT32 m_availableMemory, m_allocatedMemory;
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std::map<UCHAR *, Chunkinfo>::iterator shiftBlock(const std::map<UCHAR *, Chunkinfo>::iterator &it, TUINT32 offset);
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TRaster *findRaster(TRaster *ras);
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void checkConsistency();
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UCHAR *remap(TUINT32 RequestedSize);
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void printLog(TUINT32 size);
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public:
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TBigMemoryManager();
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~TBigMemoryManager();
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bool init(TUINT32 sizeinKb);
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bool putRaster(TRaster *ras, bool canPutOnDisk = true);
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bool releaseRaster(TRaster *ras);
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void lock(UCHAR *buffer);
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void unlock(UCHAR *buffer);
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UCHAR *getBuffer(UINT size);
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static TBigMemoryManager *instance();
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bool isActive() const { return m_theMemory != 0; }
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//void releaseSubraster(UCHAR *chunk, TRaster*subRas);
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TUINT32 getAvailableMemoryinKb() const
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{
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assert(m_theMemory != 0);
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return m_availableMemory >> 10;
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}
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void getRasterInfo(int &rasterCount, TUINT32 &totRasterMemInKb, int ¬CachedRasterCount, TUINT32 ¬CachedRasterMemInKb);
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#ifdef _DEBUG
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TUINT32 m_totRasterMemInKb;
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void printMap();
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#endif
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int getAllocationPeak();
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int getAllocationMean();
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void setRunOutOfContiguousMemoryHandler(void (*callback)(unsigned long size));
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private:
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friend class TRaster;
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void (*m_runOutCallback)(unsigned long);
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};
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#endif
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