// 7z/FolderInStream.h

#ifndef __7Z_FOLDERINSTREAM_H

#define __7Z_FOLDERINSTREAM_H

#include "7zItem.h"

#include "7zHeader.h"

#include "../IArchive.h"

#include "../Common/InStreamWithCRC.h"

#include "../../IStream.h"

#include "../../ICoder.h"

namespace NArchive {

namespace N7z {

class CFolderInStream:

public ISequentialInStream,

public ICompressGetSubStreamSize,

public CMyUnknownImp

{

public:

MY_UNKNOWN_IMP1(ICompressGetSubStreamSize)

CFolderInStream();

STDMETHOD(Read)(void *data, UInt32 size, UInt32 *processedSize);

STDMETHOD(GetSubStreamSize)(UInt64 subStream, UInt64 *value);

private:

CSequentialInStreamWithCRC *_inStreamWithHashSpec;

CMyComPtr<ISequentialInStream> _inStreamWithHash;

CMyComPtr<IArchiveUpdateCallback> _updateCallback;

bool _currentSizeIsDefined;

UInt64 _currentSize;

bool _fileIsOpen;

UInt64 _filePos;

const UInt32 *_fileIndices;

UInt32 _numFiles;

UInt32 _fileIndex;

HRESULT OpenStream();

HRESULT CloseStream();

void AddDigest();

public:

void Init(IArchiveUpdateCallback *updateCallback,

const UInt32 *fileIndices, UInt32 numFiles);

CRecordVector<bool> Processed;

CRecordVector<UInt32> CRCs;

CRecordVector<UInt64> Sizes;

UInt64 GetFullSize() const

{

UInt64 size = 0;

for (int i = 0; i < Sizes.Size(); i++)

size += Sizes[i];

return size;

}

};

}}

#endif