ScanForDiffs.h

/* START_LICENSE_HEADER

Copyright (C) 2000 Martin Piper, original design and program code
Copyright (C) 2001 Replica Software

This program file is copyright (C) Replica Software and can only be used under license.
For more information visit: http://www.replicanet.com/
Or email: info@replicanet.com

END_LICENSE_HEADER */
#ifndef _SCANFORDIFFS_H_
#define _SCANFORDIFFS_H_
#include "RNPlatform/Inc/DLLExportAPI.h"
#include <list>
#include <vector>
#include "RNLobby/Inc/ScanPath.h"

namespace RNReplicaNet
{

namespace RNLobby
{

class ScanForDiffs
{
public:
    ScanForDiffs();
    virtual ~ScanForDiffs();

    void SetNumVersions(const size_t numVersions = 3);

    size_t GetNumVersions(void);

    bool Start(const char *patchIndexPath,const char *patchDataPath,const std::list<ScanPath::Entry> &productFiles,std::vector<size_t> &idsRemoved,const size_t stripProductPath = 0,const size_t level = 8);

    virtual bool CallbackScanning(size_t pos,size_t max,const ScanPath::Entry &entry,const size_t filePos,const size_t fileMax);

private:
friend class ProductPatcher;
    // A small utility function to compress and encrypt a file
    int CompressFile(size_t pos,size_t max,const ScanPath::Entry &entry,const char *sourceFile,const char *destinationFile,const size_t level,const size_t chunkSize = 1024*1024);

    int DecompressFile(size_t pos,size_t max,const ScanPath::Entry &entry,const char *sourceFile,const char *destinationFile);

    size_t mNumVersions;
};

} // namespace RNLobby

} // namespace RNReplicaNet

#endif

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