1 /* 7zIn.h */

     2 

     3 #ifndef __7Z_IN_H

     4 #define __7Z_IN_H

     5 

     6 #include "7zHeader.h"

     7 #include "7zItem.h"

     8 #include "7zAlloc.h"

     9  

    10 typedef struct _CInArchiveInfo

    11 {

    12   CFileSize StartPositionAfterHeader; 

    13   CFileSize DataStartPosition;

    14 }CInArchiveInfo;

    15 

    16 typedef struct _CArchiveDatabaseEx

    17 {

    18   CArchiveDatabase Database;

    19   CInArchiveInfo ArchiveInfo;

    20   UInt32 *FolderStartPackStreamIndex;

    21   CFileSize *PackStreamStartPositions;

    22   UInt32 *FolderStartFileIndex;

    23   UInt32 *FileIndexToFolderIndexMap;

    24 }CArchiveDatabaseEx;

    25 

    26 void SzArDbExInit(CArchiveDatabaseEx *db);

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

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

    29 int SzArDbGetFolderFullPackSize(CArchiveDatabaseEx *db, UInt32 folderIndex, CFileSize *resSize);

    30 

    31 typedef struct _ISzInStream

    32 {

    33   #ifdef _LZMA_IN_CB

    34   SZ_RESULT (*Read)(

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

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

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

    38       size_t *processedSize); /* real processed size. 

    39                                  processedSize can be less than maxRequiredSize.

    40                                  If processedSize == 0, then there are no more 

    41                                  bytes in stream. */

    42   #else

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

    44   #endif

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

    46 } ISzInStream;

    47 

    48  

    49 int SzArchiveOpen(

    50     ISzInStream *inStream, 

    51     CArchiveDatabaseEx *db,

    52     ISzAlloc *allocMain, 

    53     ISzAlloc *allocTemp);

    54  

    55 #endif