96 lines
4.8 KiB
C
96 lines
4.8 KiB
C
/*****************************************************************************\
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* efs - General purpose Embedded Filesystem library *
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* --------------------- ----------------------------------- *
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* *
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* Filename : file.h *
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* Description : Headerfile for file.c *
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* *
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* This program is free software; you can redistribute it and/or *
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* modify it under the terms of the GNU General Public License *
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* as published by the Free Software Foundation; version 2 *
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* of the License. *
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*
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* This program is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU General Public License for more details. *
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* *
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* As a special exception, if other files instantiate templates or *
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* use macros or inline functions from this file, or you compile this *
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* file and link it with other works to produce a work based on this file, *
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* this file does not by itself cause the resulting work to be covered *
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* by the GNU General Public License. However the source code for this *
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* file must still be made available in accordance with section (3) of *
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* the GNU General Public License. *
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* *
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* This exception does not invalidate any other reasons why a work based *
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* on this file might be covered by the GNU General Public License. *
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* *
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* (c)2006 Lennart Yseboodt *
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* (c)2006 Michael De Nil *
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\*****************************************************************************/
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#ifndef __FILE_H_
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#define __FILE_H_
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/*****************************************************************************/
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#include "config.h"
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#include "error.h"
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#include "time.h"
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#include "fs.h"
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#include "dir.h"
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#include "plibc.h"
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#include "debug.h"
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#include "types.h"
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#include "fat.h"
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/*****************************************************************************/
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#define MODE_READ 0x72
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#define MODE_WRITE 0x77
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#define MODE_APPEND 0x61
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#define FILE_STATUS_OPEN 0
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#define FILE_STATUS_WRITE 1
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/*****************************************************************************\
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* File
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* ------
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* FileRecord DirEntry Copy of the FileRecord for this file
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* FileLocation Location Location of the direntry
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* FileSystem *fs Pointer to the filesystem this file is on
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* FileCache Cache Pointer to the cache object of the file
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* euint8 FileStatus Contains bitfield regarding filestatus
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* euint32 FilePtr Offsetpointer for fread/fwrite functions
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* euint32 FileSize Working copy of the filesize, always use this,
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it is more up to date than DirEntry->FileSize,
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which is only updated when flushing to disc.
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\*****************************************************************************/
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struct File{
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FileRecord DirEntry;
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FileLocation Location; /* Location in directory!! */
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FileSystem *fs;
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ClusterChain Cache;
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euint8 FileStatus;
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euint32 FilePtr;
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euint32 FileSize;
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};
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typedef struct File File;
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esint8 file_fopen(File *file, FileSystem *fs,eint8 *filename, eint8 mode);
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esint8 file_fclose(File *file);
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esint16 file_setpos(File *file,euint32 pos);
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euint32 file_fread(File *file,euint32 offset, euint32 size,euint8 *buf);
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euint32 file_read (File *file,euint32 size,euint8 *buf);
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euint32 file_fwrite(File* file,euint32 offset,euint32 size,euint8* buf);
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euint32 file_write (File* file,euint32 size,euint8* buf);
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eint8* file_normalToFatName(eint8* filename,eint8* fatfilename);
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euint8 file_validateChar(euint8 c);
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void file_initFile(File *file, FileSystem *fs, FileLocation *loc);
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eint16 file_allocClusterChain(File *file,euint32 num_clusters);
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void file_setAttr(File* file,euint8 attribute,euint8 val);
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euint8 file_getAttr(File* file,euint8 attribute);
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euint32 file_requiredCluster(File *file,euint32 offset, euint32 size);
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#endif
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