93 lines
1.7 KiB
C
93 lines
1.7 KiB
C
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/* 7zFile.h -- File IO
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2023-03-05 : Igor Pavlov : Public domain */
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#ifndef ZIP7_INC_FILE_H
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#define ZIP7_INC_FILE_H
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#ifdef _WIN32
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#define USE_WINDOWS_FILE
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// #include <windows.h>
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#endif
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#ifdef USE_WINDOWS_FILE
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#include "7zWindows.h"
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#else
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// note: USE_FOPEN mode is limited to 32-bit file size
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// #define USE_FOPEN
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// #include <stdio.h>
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#endif
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#include "7zTypes.h"
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EXTERN_C_BEGIN
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/* ---------- File ---------- */
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typedef struct
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{
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#ifdef USE_WINDOWS_FILE
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HANDLE handle;
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#elif defined(USE_FOPEN)
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FILE *file;
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#else
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int fd;
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#endif
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} CSzFile;
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void File_Construct(CSzFile *p);
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#if !defined(UNDER_CE) || !defined(USE_WINDOWS_FILE)
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WRes InFile_Open(CSzFile *p, const char *name);
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WRes OutFile_Open(CSzFile *p, const char *name);
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#endif
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#ifdef USE_WINDOWS_FILE
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WRes InFile_OpenW(CSzFile *p, const WCHAR *name);
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WRes OutFile_OpenW(CSzFile *p, const WCHAR *name);
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#endif
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WRes File_Close(CSzFile *p);
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/* reads max(*size, remain file's size) bytes */
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WRes File_Read(CSzFile *p, void *data, size_t *size);
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/* writes *size bytes */
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WRes File_Write(CSzFile *p, const void *data, size_t *size);
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WRes File_Seek(CSzFile *p, Int64 *pos, ESzSeek origin);
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WRes File_GetLength(CSzFile *p, UInt64 *length);
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/* ---------- FileInStream ---------- */
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typedef struct
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{
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ISeqInStream vt;
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CSzFile file;
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WRes wres;
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} CFileSeqInStream;
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void FileSeqInStream_CreateVTable(CFileSeqInStream *p);
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typedef struct
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{
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ISeekInStream vt;
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CSzFile file;
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WRes wres;
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} CFileInStream;
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void FileInStream_CreateVTable(CFileInStream *p);
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typedef struct
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{
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ISeqOutStream vt;
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CSzFile file;
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WRes wres;
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} CFileOutStream;
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void FileOutStream_CreateVTable(CFileOutStream *p);
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EXTERN_C_END
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#endif
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