mirror of
https://github.com/portapack-mayhem/mayhem-firmware.git
synced 2024-12-15 04:28:10 +00:00
50 lines
2.7 KiB
HTML
50 lines
2.7 KiB
HTML
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
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<html lang="en">
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<head>
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<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
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<meta http-equiv="Content-Style-Type" content="text/css">
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<link rel="up" title="FatFs" href="../00index_e.html">
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<link rel="alternate" hreflang="ja" title="Japanese" href="../ja/sfile.html">
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<link rel="stylesheet" href="../css_e.css" type="text/css" media="screen" title="ELM Default">
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<title>FatFs - FIL</title>
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</head>
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<body>
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<div class="para">
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<h2>FIL</h2>
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<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>
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<pre>
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<span class="k">typedef</span> <span class="k">struct</span> {
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FATFS* fs; <span class="c">/* Pointer to the owner file system object */</span>
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WORD id; <span class="c">/* Owner file system mount ID */</span>
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BYTE flag; <span class="c">/* File object status flags */</span>
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BYTE err; <span class="c">/* Abort flag (error code) */</span>
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DWORD fptr; <span class="c">/* File read/write pointer (Byte offset origin from top of the file) */</span>
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DWORD fsize; <span class="c">/* File size in unit of byte */</span>
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DWORD sclust; <span class="c">/* File start cluster */</span>
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DWORD clust; <span class="c">/* Current cluster */</span>
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DWORD dsect; <span class="c">/* Current data sector */</span>
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<span class="k">#if</span> !_FS_READONLY
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DWORD dir_sect; <span class="c">/* Sector containing the directory entry */</span>
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BYTE* dir_ptr; <span class="c">/* Ponter to the directory entry in the window */</span>
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<span class="k">#endif</span>
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<span class="k">#if</span> _USE_FASTSEEK
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DWORD* cltbl; <span class="c">/* Pointer to the cluster link map table (Nulled on file open) */</span>
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<span class="k">#endif</span>
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<span class="k">#if</span> _FS_LOCK
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UINT lockid; <span class="c">/* Fle lock ID */</span>
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<span class="k">#endif</span>
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<span class="k">#if</span> !_FS_TINY
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BYTE buf[_MAX_SS]; <span class="c">/* File private data transfer buffer */</span>
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<span class="k">#endif</span>
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} FIL;
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</pre>
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</div>
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<p class="foot"><a href="../00index_e.html">Return</a></p>
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</body>
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</html>
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