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1 /* 7zFile.h -- File IO
2 2017-04-03 : 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 "7zTypes.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 vt;
58   CSzFile file;
59 } CFileSeqInStream;
60 
61 void FileSeqInStream_CreateVTable(CFileSeqInStream *p);
62 
63 
64 typedef struct
65 {
66   ISeekInStream vt;
67   CSzFile file;
68 } CFileInStream;
69 
70 void FileInStream_CreateVTable(CFileInStream *p);
71 
72 
73 typedef struct
74 {
75   ISeqOutStream vt;
76   CSzFile file;
77 } CFileOutStream;
78 
79 void FileOutStream_CreateVTable(CFileOutStream *p);
80 
81 EXTERN_C_END
82 
83 #endif
84