vcs.maemo.org Git - physicsfs/blob - lzma/C/Archive/7z/7zIn.h

   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