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9 <title>FatFs - FIL
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16 <p>The
<tt>FIL
</tt> structure (file object) holds state of an open file. It is created by
<tt>f_open()
</tt> function and discarded by
<tt>f_close()
</tt> function. Application program must not modify any member in this structure except for
<tt>cltbl
</tt>. Note that a sector buffer is defined in this structure at non-tiny configuration, so that the
<tt>FIL
</tt> structures should not be defined as auto variable.
</p>
19 <span class=
"k">typedef
</span> <span class=
"k">struct
</span> {
20 FATFS* fs;
<span class=
"c">/* Pointer to the owner file system object */
</span>
21 WORD id;
<span class=
"c">/* Owner file system mount ID */
</span>
22 BYTE flag;
<span class=
"c">/* File object status flags */
</span>
23 BYTE err;
<span class=
"c">/* Abort flag (error code) */
</span>
24 DWORD fptr;
<span class=
"c">/* File read/write pointer (Byte offset origin from top of the file) */
</span>
25 DWORD fsize;
<span class=
"c">/* File size in unit of byte */
</span>
26 DWORD sclust;
<span class=
"c">/* File start cluster */
</span>
27 DWORD clust;
<span class=
"c">/* Current cluster */
</span>
28 DWORD dsect;
<span class=
"c">/* Current data sector */
</span>
29 <span class=
"k">#if
</span> !_FS_READONLY
30 DWORD dir_sect;
<span class=
"c">/* Sector containing the directory entry */
</span>
31 BYTE* dir_ptr;
<span class=
"c">/* Ponter to the directory entry in the window */
</span>
32 <span class=
"k">#endif
</span>
33 <span class=
"k">#if
</span> _USE_FASTSEEK
34 DWORD* cltbl;
<span class=
"c">/* Pointer to the cluster link map table (Nulled on file open) */
</span>
35 <span class=
"k">#endif
</span>
36 <span class=
"k">#if
</span> _FS_LOCK
37 UINT lockid;
<span class=
"c">/* Fle lock ID */
</span>
38 <span class=
"k">#endif
</span>
39 <span class=
"k">#if
</span> !_FS_TINY
40 BYTE buf[_MAX_SS];
<span class=
"c">/* File private data transfer buffer */
</span>
41 <span class=
"k">#endif
</span>
47 <p class=
"foot"><a href=
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