BaseTools/Source/C/LzmaCompress/Sdk/C/7zFile.h

   1 /* 7zFile.h -- File IO
   2 2008-11-22 : Igor Pavlov : Public domain */
   3
   4 #ifndef __7Z_FILE_H
   5 #define __7Z_FILE_H
   6
   7 #ifdef _WIN32
   8 #define USE_WINDOWS_FILE
   9 #endif
  10
  11 #ifdef USE_WINDOWS_FILE
  12 #include <windows.h>
  13 #else
  14 #include <stdio.h>
  15 #endif
  16
  17 #include "Types.h"
  18
  19
  20 /* ---------- File ---------- */
  21
  22 typedef struct
  23 {
  24   #ifdef USE_WINDOWS_FILE
  25   HANDLE handle;
  26   #else
  27   FILE *file;
  28   #endif
  29 } CSzFile;
  30
  31 void File_Construct(CSzFile *p);
  32 WRes InFile_Open(CSzFile *p, const char *name);
  33 WRes OutFile_Open(CSzFile *p, const char *name);
  34 WRes File_Close(CSzFile *p);
  35
  36 /* reads max(*size, remain file's size) bytes */
  37 WRes File_Read(CSzFile *p, void *data, size_t *size);
  38
  39 /* writes *size bytes */
  40 WRes File_Write(CSzFile *p, const void *data, size_t *size);
  41
  42 WRes File_Seek(CSzFile *p, Int64 *pos, ESzSeek origin);
  43 WRes File_GetLength(CSzFile *p, UInt64 *length);
  44
  45
  46 /* ---------- FileInStream ---------- */
  47
  48 typedef struct
  49 {
  50   ISeqInStream s;
  51   CSzFile file;
  52 } CFileSeqInStream;
  53
  54 void FileSeqInStream_CreateVTable(CFileSeqInStream *p);
  55
  56
  57 typedef struct
  58 {
  59   ISeekInStream s;
  60   CSzFile file;
  61 } CFileInStream;
  62
  63 void FileInStream_CreateVTable(CFileInStream *p);
  64
  65
  66 typedef struct
  67 {
  68   ISeqOutStream s;
  69   CSzFile file;
  70 } CFileOutStream;
  71
  72 void FileOutStream_CreateVTable(CFileOutStream *p);
  73
  74 #endif