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| author | pashamray <pashamray@gmail.com> | 2014-07-02 13:03:18 +0300 |
|---|---|---|
| committer | pashamray <pashamray@gmail.com> | 2014-07-02 13:03:18 +0300 |
| commit | a3993c80e0f2cbb11813ce29613af5f3bc0070fa (patch) | |
| tree | 9fabe62195ec5068f8aea3e9d4f961847ca67c13 /src/gfile/fatfs/doc/ja/lseek.html | |
| parent | 8e13c10f392396022a4b2ae04b5ccd8cb795f17e (diff) | |
| parent | e67fbb3e6b82742eae4096faff2a1e47e25804e3 (diff) | |
| download | uGFX-a3993c80e0f2cbb11813ce29613af5f3bc0070fa.tar.gz uGFX-a3993c80e0f2cbb11813ce29613af5f3bc0070fa.tar.bz2 uGFX-a3993c80e0f2cbb11813ce29613af5f3bc0070fa.zip | |
master слито с pcf8812
Diffstat (limited to 'src/gfile/fatfs/doc/ja/lseek.html')
| -rw-r--r-- | src/gfile/fatfs/doc/ja/lseek.html | 129 |
1 files changed, 129 insertions, 0 deletions
diff --git a/src/gfile/fatfs/doc/ja/lseek.html b/src/gfile/fatfs/doc/ja/lseek.html new file mode 100644 index 00000000..55788526 --- /dev/null +++ b/src/gfile/fatfs/doc/ja/lseek.html @@ -0,0 +1,129 @@ +<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
+<html lang="ja">
+<head>
+<meta http-equiv="Content-Type" content="text/html; charset=Shift_JIS">
+<meta http-equiv="Content-Style-Type" content="text/css">
+<link rel="up" title="FatFs" href="../00index_j.html">
+<link rel="alternate" hreflang="en" title="English" href="../en/lseek.html">
+<link rel="stylesheet" href="../css_j.css" type="text/css" media="screen" title="ELM Default">
+<title>FatFs - f_lseek</title>
+</head>
+
+<body>
+
+<div class="para func">
+<h2>f_lseek</h2>
+<p>t@C̃[h/CgE|C^ړ܂B܂AV[N@\gpɂCLMT(q)̍쐬ɂgp܂B</p>
+<pre>
+FRESULT f_lseek (
+ FIL* <span class="arg">fp</span>, <span class="c">/* [IN] t@CEIuWFNg\̂ւ̃|C^ */</span>
+ DWORD <span class="arg">ofs</span> <span class="c">/* [IN] ړItZbg */</span>
+);
+</pre>
+</div>
+
+<div class="para arg">
+<h4></h4>
+<dl class="par">
+<dt>fp</dt>
+<dd>ΏۂƂȂt@CEIuWFNg\̂ւ̃|C^w肵܂B</dd>
+<dt>ofs</dt>
+<dd>ړ̃ItZbg([h/CgE|C^)lBt@C擪̃ItZbgoCgPʂŎw肵܂B</dd>
+</dl>
+</div>
+
+
+<div class="para ret">
+<h4>߂l</h4>
+<p>
+<a href="rc.html#ok">FR_OK</a>,
+<a href="rc.html#de">FR_DISK_ERR</a>,
+<a href="rc.html#ie">FR_INT_ERR</a>,
+<a href="rc.html#nr">FR_NOT_READY</a>,
+<a href="rc.html#io">FR_INVALID_OBJECT</a>,
+<a href="rc.html#tm">FR_TIMEOUT</a>,
+<a href="rc.html#nc">FR_NOT_ENOUGH_CORE</a>
+</p>
+</div>
+
+
+<div class="para desc">
+<h4></h4>
+<p>t@C̃[h/CgE|C^(ɓǂݏoE݂oCg̃ItZbg)ړ܂BItZbǧ_̓t@C擪łB݃[hŃt@CETCY傫Ȓlw肷ƁA܂Ńt@CETCYgAgꂽ̃f[^͖`ƂȂ܂Bf[^xɏ݂Ƃ́A\߂̊ŕKvȃTCY܂Ńt@CETCYgĂƗǂł傤B<tt>f_lseek()</tt>IƂ́A[h/CgE|C^ړ`FbNׂłB[h/CgE|C^w菬Ƃ́Ǎl܂B</p>
+<ul>
+<li>݃[h܂͍V[NE[ĥ߁At@CETCYŃNbvꂽB</li>
+<li>t@CgɃfBXNtɂȂB</li>
+</ul>
+<p><tt>_USE_FASTSEEK</tt>1ŁAt@CEIuWFNg<tt>cltbl</tt>oNULLȊO(<tt>f_open()</tt>NULLɐݒ肳)̂ƂAV[NE[hɂȂ܂B̓t@C̃NX^zu(CLMT)ɕێĂƂɂAFATɃANZX邱ƂȂV[NOEV[Nɍs@\łBV[NE[h́A<tt>f_read()/f_wtite()</tt>̓ɂKp܂BV[NE[hł<tt>f_wtite()/f_lseek()</tt>ɂt@CETCY̊g͂ł܂B</p>
+<p>V[NsOɁACLMT쐬ĂKv܂B쐬ɂ́A܂CLMTi[obt@(<tt>DWORD</tt>^z)A<tt>cltbl</tt>oɂ̃|C^Zbg܂BāAz̐擪vfɂ̔z̃TCY(vf)A<tt>f_lseek()</tt><tt class="arg">ofs</tt><tt>CREATE_LINKMAP</tt>w肵ČĂяo܂BCLMT쐬Aȍ~<tt>f_read()/f_write()/f_lseek()</tt>łFATւ̃ANZX͔܂B<tt>FR_NOT_ENOUGH_CORE</tt>ŎsƂ͔zTCYsŁA擪vfɂ͎ۂɕKvƂȂvfԂ܂BKvȗvf́A(t@C̕ + 1) * 2 łBƂAt@C5̃tOgɕfĂƂɕKvȗvf́A12ƂȂ܂B</p>
+</div>
+
+
+<div class="para comp">
+<h4>Ή</h4>
+<p><tt>_FS_MINIMIZE < 3</tt>̂Ƃgp\łB</p>
+</div>
+
+
+<div class="para use">
+<h4>gp</h4>
+<pre>
+ <span class="c">/* t@CJ */</span>
+ fp = malloc(sizeof (FIL));
+ res = f_open(fp, "file.dat", FA_READ|FA_WRITE);
+ if (res) ...
+
+ <span class="c">/* t@CEItZbg5000ֈړ */</span>
+ res = f_lseek(fp, 5000);
+
+ <span class="c">/* t@CI[ֈړ(t@CNjL̏) */</span>
+ res = f_lseek(fp, f_size(fp));
+
+ <span class="c">/* 3000oCgi߂ */</span>
+ res = f_lseek(fp, f_tell(fp) + 3000);
+
+ <span class="c">/* 2000oCg߂ (bvAEhɒ) */</span>
+ res = f_lseek(fp, f_tell(fp) - 2000);
+</pre>
+<pre>
+<span class="c">/* NX^s蓖 (Xg[~OECg̃obt@EI[o[h~) */</span>
+
+ res = f_open(fp, "record.wav", FA_CREATE_NEW | FA_WRITE); <span class="c">/* t@C쐬 */</span>
+
+ res = f_lseek(fp, MAX_SIZE); <span class="c">/* \ȃNX^̐s蓖 */</span>
+ if (res || f_tell(fp) != PRE_SIZE) ... <span class="c">/* t@Cgꂽ`FbN */</span>
+
+ res = f_lseek(fp, DATA_START); <span class="c">/* f[^EXg[̋L^(AP[VfBC) */</span>
+ ...
+
+ res = f_truncate(fp); <span class="c">/* sv̈̐̂ */</span>
+ res = f_lseek(fp, 0); <span class="c">/* wb_̋L^ */</span>
+ ...
+
+ res = f_close(fp);
+</pre>
+<pre>
+<span class="c">/* V[N@\g */</span>
+
+ DWORD clmt[SZ_TBL]; <span class="c">/* NE}bvEe[ui[obt@ */</span>
+
+ res = f_lseek(fp, ofs1); <span class="c">/* ʏV[N (I[vAcltblNULLɏ) */</span>
+
+ fp->cltbl = clmt; <span class="c">/* V[N@\̗L */</span>
+ clmt[0] = SZ_TBL; <span class="c">/* 擪vfɔzvfZbg */</span>
+ res = f_lseek(fp, CREATE_LINKMAP); <span class="c">/* CLMT̍쐬 */</span>
+ ...
+
+ res = f_lseek(fp, ofs2); <span class="c">/* ȍ~Af_read/f_write/f_lseekFATANZX͔Ȃ */</span>
+</pre>
+</div>
+
+
+<div class="para ref">
+<h4>Q</h4>
+<p><tt><a href="open.html">f_open</a>, <a href="sfile.html">FIL</a></tt></p>
+</div>
+
+<p class="foot"><a href="../00index_j.html">߂</a></p>
+</body>
+</html>
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