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<a href="#pub-methods">Public Member Functions</a> &#124;
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<p>Sector cache.
<a href="class_fat_cache.html#details">More...</a></p>
<p><code>#include &lt;FatPartition.h&gt;</code></p>
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-methods"></a>
Public Member Functions</h2></td></tr>
<tr class="memitem:a50b61cdeeff5c5dfd2a4bd7430ef19ac"><td class="memItemLeft" align="right" valign="top"><a class="el" href="unioncache__t.html">cache_t</a> *&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_fat_cache.html#a50b61cdeeff5c5dfd2a4bd7430ef19ac">buffer</a> ()</td></tr>
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<tr class="memitem:ab4d3b0c16bb6a116c7d01afff2dcb307"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_fat_cache.html#ab4d3b0c16bb6a116c7d01afff2dcb307">dirty</a> ()</td></tr>
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<tr class="memitem:a1a9d892b5a68463598bb39d2732cb664"><td class="memItemLeft" align="right" valign="top">uint32_t&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_fat_cache.html#a1a9d892b5a68463598bb39d2732cb664">sector</a> ()</td></tr>
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<tr class="memitem:adf974f55e53ee0aaa85abb0d7d67181c"><td class="memItemLeft" align="right" valign="top">static const uint8_t&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_fat_cache.html#adf974f55e53ee0aaa85abb0d7d67181c">CACHE_OPTION_NO_READ</a> = 4</td></tr>
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<tr class="memitem:a49d2896ff525ab77852f76df5c2a09c2"><td class="memItemLeft" align="right" valign="top">static const uint8_t&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_fat_cache.html#a49d2896ff525ab77852f76df5c2a09c2">CACHE_RESERVE_FOR_WRITE</a> = <a class="el" href="class_fat_cache.html#aac8c38e5c545d0f80b13d816117f626e">CACHE_STATUS_DIRTY</a> | <a class="el" href="class_fat_cache.html#adf974f55e53ee0aaa85abb0d7d67181c">CACHE_OPTION_NO_READ</a></td></tr>
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<tr class="memitem:aac8c38e5c545d0f80b13d816117f626e"><td class="memItemLeft" align="right" valign="top">static const uint8_t&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_fat_cache.html#aac8c38e5c545d0f80b13d816117f626e">CACHE_STATUS_DIRTY</a> = 1</td></tr>
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<tr class="memitem:ab70dc4a2e387f0e9bf392044c702ae32"><td class="memItemLeft" align="right" valign="top">static const uint8_t&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_fat_cache.html#ab70dc4a2e387f0e9bf392044c702ae32">CACHE_STATUS_MASK</a> = <a class="el" href="class_fat_cache.html#aac8c38e5c545d0f80b13d816117f626e">CACHE_STATUS_DIRTY</a> | <a class="el" href="class_fat_cache.html#a45236e1c0a2a098f08d3add0e4b1467a">CACHE_STATUS_MIRROR_FAT</a></td></tr>
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<tr class="memitem:a45236e1c0a2a098f08d3add0e4b1467a"><td class="memItemLeft" align="right" valign="top">static const uint8_t&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_fat_cache.html#a45236e1c0a2a098f08d3add0e4b1467a">CACHE_STATUS_MIRROR_FAT</a> = 2</td></tr>
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock"><p>Sector cache. </p>
</div><h2 class="groupheader">Member Function Documentation</h2>
<a class="anchor" id="a50b61cdeeff5c5dfd2a4bd7430ef19ac"></a>
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<td class="memname"><a class="el" href="unioncache__t.html">cache_t</a>* FatCache::buffer </td>
<td>(</td>
<td class="paramname"></td><td>)</td>
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<dl class="section return"><dt>Returns</dt><dd>Cache sector address. </dd></dl>
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<td class="memname">void FatCache::dirty </td>
<td>(</td>
<td class="paramname"></td><td>)</td>
<td></td>
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</td>
<td class="mlabels-right">
<span class="mlabels"><span class="mlabel">inline</span></span> </td>
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<p>Set current sector dirty. </p>
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<td class="memname">void FatCache::init </td>
<td>(</td>
<td class="paramtype"><a class="el" href="class_fat_partition.html">FatPartition</a> *&#160;</td>
<td class="paramname"><em>vol</em></td><td>)</td>
<td></td>
</tr>
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</td>
<td class="mlabels-right">
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<p>Initialize the cache. </p><dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramdir">[in]</td><td class="paramname">vol</td><td><a class="el" href="class_fat_partition.html" title="Access FAT16 and FAT32 partitions on raw file devices. ">FatPartition</a> that owns this <a class="el" href="class_fat_cache.html" title="Sector cache. ">FatCache</a>. </td></tr>
</table>
</dd>
</dl>
</div>
</div>
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<td class="memname">void FatCache::invalidate </td>
<td>(</td>
<td class="paramname"></td><td>)</td>
<td></td>
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<td class="mlabels-right">
<span class="mlabels"><span class="mlabel">inline</span></span> </td>
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</div><div class="memdoc">
<p>Invalidate current cache sector. </p>
</div>
</div>
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<td class="memname">bool FatCache::isDirty </td>
<td>(</td>
<td class="paramname"></td><td>)</td>
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<dl class="section return"><dt>Returns</dt><dd>dirty status </dd></dl>
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<a class="anchor" id="a9c3d0dfa0d987f2c8dbad2d35024b56b"></a>
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<td class="memname"><a class="el" href="unioncache__t.html">cache_t</a> * FatCache::read </td>
<td>(</td>
<td class="paramtype">uint32_t&#160;</td>
<td class="paramname"><em>sector</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">uint8_t&#160;</td>
<td class="paramname"><em>option</em>&#160;</td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
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</div><div class="memdoc">
<p>Read a sector into the cache. </p><dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramdir">[in]</td><td class="paramname">sector</td><td>Sector to read. </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">option</td><td>mode for cached sector. </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>Address of cached sector.</dd></dl>
<p>Copyright (c) 20011-2017 Bill Greiman This file is part of the <a class="el" href="class_sd_fs.html" title="SD file system class for FAT16, FAT32, and exFAT volumes. ">SdFs</a> library for SD memory cards.</p>
<p>MIT License</p>
<p>Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:</p>
<p>The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.</p>
<p>THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. </p>
</div>
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<a class="anchor" id="a1a9d892b5a68463598bb39d2732cb664"></a>
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<td class="memname">uint32_t FatCache::sector </td>
<td>(</td>
<td class="paramname"></td><td>)</td>
<td></td>
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<dl class="section return"><dt>Returns</dt><dd>Logical sector number for cached sector. </dd></dl>
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<td class="memname">bool FatCache::sync </td>
<td>(</td>
<td class="paramname"></td><td>)</td>
<td></td>
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<p>Write current sector if dirty. </p><dl class="section return"><dt>Returns</dt><dd>true for success else false. </dd></dl>
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<h2 class="groupheader">Member Data Documentation</h2>
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<td class="memname">const uint8_t FatCache::CACHE_FOR_READ = 0</td>
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<td class="mlabels-right">
<span class="mlabels"><span class="mlabel">static</span></span> </td>
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<p>Cache sector for read. </p>
</div>
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<a class="anchor" id="a81cb572f33443bd6aee9aa33ec395d0f"></a>
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<td class="memname">const uint8_t FatCache::CACHE_FOR_WRITE = <a class="el" href="class_fat_cache.html#aac8c38e5c545d0f80b13d816117f626e">CACHE_STATUS_DIRTY</a></td>
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<p>Cache sector for write. </p>
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<td class="memname">const uint8_t FatCache::CACHE_OPTION_NO_READ = 4</td>
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<p>Sync existing sector but do not read new sector. </p>
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<td class="memname">const uint8_t FatCache::CACHE_RESERVE_FOR_WRITE = <a class="el" href="class_fat_cache.html#aac8c38e5c545d0f80b13d816117f626e">CACHE_STATUS_DIRTY</a> | <a class="el" href="class_fat_cache.html#adf974f55e53ee0aaa85abb0d7d67181c">CACHE_OPTION_NO_READ</a></td>
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<p>Reserve cache sector for write - do not read from sector device. </p>
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<td class="memname">const uint8_t FatCache::CACHE_STATUS_DIRTY = 1</td>
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<p>Cached sector is dirty </p>
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<td class="memname">const uint8_t FatCache::CACHE_STATUS_MASK = <a class="el" href="class_fat_cache.html#aac8c38e5c545d0f80b13d816117f626e">CACHE_STATUS_DIRTY</a> | <a class="el" href="class_fat_cache.html#a45236e1c0a2a098f08d3add0e4b1467a">CACHE_STATUS_MIRROR_FAT</a></td>
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<p>Cache sector status bits </p>
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<td class="memname">const uint8_t FatCache::CACHE_STATUS_MIRROR_FAT = 2</td>
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<p>Cashed sector is FAT entry and must be mirrored in second FAT. </p>
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<hr/>The documentation for this class was generated from the following files:<ul>
<li>ArduinoSdFs/libraries/SdFs/src/FatLib/<a class="el" href="_fat_partition_8h.html">FatPartition.h</a></li>
<li>ArduinoSdFs/libraries/SdFs/src/FatLib/FatPartition.cpp</li>
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