third_party/lzma_sdk/7zFile.h

   1 /* 7zFile.h -- File IO
   2 2009-11-24 : 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 EXTERN_C_BEGIN
  20
  21 /* ---------- File ---------- */
  22
  23 typedef struct
  24 {
  25   #ifdef USE_WINDOWS_FILE
  26   HANDLE handle;
  27   #else
  28   FILE *file;
  29   #endif
  30 } CSzFile;
  31
  32 void File_Construct(CSzFile *p);
  33 #if !defined(UNDER_CE) || !defined(USE_WINDOWS_FILE)
  34 WRes InFile_Open(CSzFile *p, const char *name);
  35 WRes OutFile_Open(CSzFile *p, const char *name);
  36 #endif
  37 #ifdef USE_WINDOWS_FILE
  38 WRes InFile_OpenW(CSzFile *p, const WCHAR *name);
  39 WRes OutFile_OpenW(CSzFile *p, const WCHAR *name);
  40 #endif
  41 WRes File_Close(CSzFile *p);
  42
  43 /* reads max(*size, remain file's size) bytes */
  44 WRes File_Read(CSzFile *p, void *data, size_t *size);
  45
  46 /* writes *size bytes */
  47 WRes File_Write(CSzFile *p, const void *data, size_t *size);
  48
  49 WRes File_Seek(CSzFile *p, Int64 *pos, ESzSeek origin);
  50 WRes File_GetLength(CSzFile *p, UInt64 *length);
  51
  52
  53 /* ---------- FileInStream ---------- */
  54
  55 typedef struct
  56 {
  57   ISeqInStream s;
  58   CSzFile file;
  59 } CFileSeqInStream;
  60
  61 void FileSeqInStream_CreateVTable(CFileSeqInStream *p);
  62
  63
  64 typedef struct
  65 {
  66   ISeekInStream s;
  67   CSzFile file;
  68 } CFileInStream;
  69
  70 void FileInStream_CreateVTable(CFileInStream *p);
  71
  72
  73 typedef struct
  74 {
  75   ISeqOutStream s;
  76   CSzFile file;
  77 } CFileOutStream;
  78
  79 void FileOutStream_CreateVTable(CFileOutStream *p);
  80
  81 EXTERN_C_END
  82
  83 #endif