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5 | <meta http-equiv="Content-Style-Type" content="text/css">\r | |
6 | <link rel="up" title="FatFs" href="../00index_e.html">\r | |
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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 |
53668523 L |
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 |