/* 7zIn.h */

#ifndef __7Z_IN_H

#define __7Z_IN_H

#include "7zHeader.h"

#include "7zItem.h"

#include "7zAlloc.h"

typedef struct _CInArchiveInfo

{

CFileSize StartPositionAfterHeader;

CFileSize DataStartPosition;

}CInArchiveInfo;

typedef struct _CArchiveDatabaseEx

{

CArchiveDatabase Database;

CInArchiveInfo ArchiveInfo;

UInt32 *FolderStartPackStreamIndex;

CFileSize *PackStreamStartPositions;

UInt32 *FolderStartFileIndex;

UInt32 *FileIndexToFolderIndexMap;

}CArchiveDatabaseEx;

void SzArDbExInit(CArchiveDatabaseEx *db);

void SzArDbExFree(CArchiveDatabaseEx *db, void (*freeFunc)(void *));

CFileSize SzArDbGetFolderStreamPos(CArchiveDatabaseEx *db, UInt32 folderIndex, UInt32 indexInFolder);

CFileSize SzArDbGetFolderFullPackSize(CArchiveDatabaseEx *db, UInt32 folderIndex);

typedef struct _ISzInStream

{

#ifdef _LZMA_IN_CB

SZ_RESULT (*Read)(

void *object, /* pointer to ISzInStream itself */

void **buffer, /* out: pointer to buffer with data */

size_t maxRequiredSize, /* max required size to read */

size_t *processedSize); /* real processed size.

processedSize can be less than maxRequiredSize.

If processedSize == 0, then there are no more

bytes in stream. */

#else

SZ_RESULT (*Read)(void *object, void *buffer, size_t size, size_t *processedSize);

#endif

SZ_RESULT (*Seek)(void *object, CFileSize pos);

} ISzInStream;

int SzArchiveOpen(

ISzInStream *inStream,

CArchiveDatabaseEx *db,

ISzAlloc *allocMain,

ISzAlloc *allocTemp);

#endif