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1<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">\r
2<html lang="en">\r
3<head>\r
4<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">\r
5<meta http-equiv="Content-Style-Type" content="text/css">\r
6<link rel="up" title="FatFs" href="../00index_e.html">\r
7<link rel="alternate" hreflang="ja" title="Japanese" href="../ja/sfile.html">\r
8<link rel="stylesheet" href="../css_e.css" type="text/css" media="screen" title="ELM Default">\r
9<title>FatFs - FIL</title>\r
10</head>\r
11\r
12<body>\r
13\r
14<div class="para">\r
15<h2>FIL</h2>\r
7b78a5a2 16<p>The <tt>FIL</tt> structure (file object) holds the 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 (<tt>_FS_TINY == 0</tt>), so that the <tt>FIL</tt> structures at that configuration should not be defined as auto variable.</p>\r
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17\r
18<pre>\r
19<span class="k">typedef</span> <span class="k">struct</span> {\r
20 FATFS* fs; <span class="c">/* Pointer to the owner file system object */</span>\r
21 WORD id; <span class="c">/* Owner file system mount ID */</span>\r
22 BYTE flag; <span class="c">/* File object status flags */</span>\r
23 BYTE err; <span class="c">/* Abort flag (error code) */</span>\r
24 DWORD fptr; <span class="c">/* File read/write pointer (Byte offset origin from top of the file) */</span>\r
25 DWORD fsize; <span class="c">/* File size in unit of byte */</span>\r
26 DWORD sclust; <span class="c">/* File start cluster */</span>\r
27 DWORD clust; <span class="c">/* Current cluster */</span>\r
28 DWORD dsect; <span class="c">/* Current data sector */</span>\r
29<span class="k">#if</span> !_FS_READONLY\r
30 DWORD dir_sect; <span class="c">/* Sector containing the directory entry */</span>\r
31 BYTE* dir_ptr; <span class="c">/* Ponter to the directory entry in the window */</span>\r
32<span class="k">#endif</span>\r
33<span class="k">#if</span> _USE_FASTSEEK\r
34 DWORD* cltbl; <span class="c">/* Pointer to the cluster link map table (Nulled on file open) */</span>\r
35<span class="k">#endif</span>\r
36<span class="k">#if</span> _FS_LOCK\r
37 UINT lockid; <span class="c">/* Fle lock ID */</span>\r
38<span class="k">#endif</span>\r
39<span class="k">#if</span> !_FS_TINY\r
40 BYTE buf[_MAX_SS]; <span class="c">/* File private data transfer buffer */</span>\r
41<span class="k">#endif</span>\r
42} FIL;\r
43</pre>\r
44\r
45</div>\r
46\r
47<p class="foot"><a href="../00index_e.html">Return</a></p>\r
48</body>\r
49</html>\r