projects / z180-stamp.git / blame
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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 | |
| 70702af1 | 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>, or any data on the FAT volume can be collapsed. 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 | |
| 70702af1 | 20 | _FDID obj; <span class="c">/* Owner file sytem object and object identifier */</span>\r |
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21 | BYTE flag; <span class="c">/* File object status flags */</span>\r |
| 22 | BYTE err; <span class="c">/* Abort flag (error code) */</span>\r | |
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23 | FSIZE_t fptr; <span class="c">/* File read/write pointer (Byte offset origin from top of the file) */</span>\r |
| 24 | DWORD clust; <span class="c">/* Current cluster of fptr (One cluster behind if fptr is on the cluster boundary. Invalid if fptr == 0.) */</span>\r | |
| 25 | DWORD sect; <span class="c">/* Current data sector (Can be invalid if fptr is on the cluster boundary.)*/</span>\r | |
| 53668523 | 26 | <span class="k">#if</span> !_FS_READONLY\r |
| 70702af1 | 27 | DWORD dir_sect; <span class="c">/* Sector number containing the directory entry */</span>\r |
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28 | BYTE* dir_ptr; <span class="c">/* Ponter to the directory entry in the window */</span>\r |
| 29 | <span class="k">#endif</span>\r | |
| 30 | <span class="k">#if</span> _USE_FASTSEEK\r | |
| 70702af1 | 31 | DWORD* cltbl; <span class="c">/* Pointer to the cluster link map table (Nulled on file open. Set by application.) */</span>\r |
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32 | <span class="k">#endif</span>\r |
| 33 | <span class="k">#if</span> !_FS_TINY\r | |
| 70702af1 | 34 | BYTE buf[_MAX_SS]; <span class="c">/* File private data transfer buffer (Always valid if fptr is not on the sector boundary but can be invalid if fptr is on the sector boundary.) */</span>\r |
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35 | <span class="k">#endif</span>\r |
| 36 | } FIL;\r | |
| 37 | </pre>\r | |
| 38 | \r | |
| 39 | </div>\r | |
| 40 | \r | |
| 41 | <p class="foot"><a href="../00index_e.html">Return</a></p>\r | |
| 42 | </body>\r | |
| 43 | </html>\r |