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<div id="projectbrief">Aaru Data Preservation Suite - Format Library</div>
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<div class="headertitle"><div class="title">hash_map_t Struct Reference</div></div>
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<p>Minimal open-addressing hash map for 64-bit key/value pairs used in deduplication lookup.
<a href="#details">More...</a></p>
<p><code>#include &lt;<a class="el" href="hash__map_8h_source.html">aaruformat/hash_map.h</a>&gt;</code></p>
<table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 id="header-pub-attribs" class="groupheader"><a id="pub-attribs" name="pub-attribs"></a>
Data Fields</h2></td></tr>
<tr class="memitem:aeaa8747727df544b4757e6c46aa8779f" id="r_aeaa8747727df544b4757e6c46aa8779f"><td class="memItemLeft" align="right" valign="top"><a class="el" href="structkv__pair__t.html">kv_pair_t</a> *&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="#aeaa8747727df544b4757e6c46aa8779f">table</a></td></tr>
<tr class="memdesc:aeaa8747727df544b4757e6c46aa8779f"><td class="mdescLeft">&#160;</td><td class="mdescRight">Array of key/value slots of length == size. <br /></td></tr>
<tr class="memitem:acfa07d46992978b9a9d07522fcf920b8" id="r_acfa07d46992978b9a9d07522fcf920b8"><td class="memItemLeft" align="right" valign="top">size_t&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="#acfa07d46992978b9a9d07522fcf920b8">size</a></td></tr>
<tr class="memdesc:acfa07d46992978b9a9d07522fcf920b8"><td class="mdescLeft">&#160;</td><td class="mdescRight">Allocated slot capacity of table. <br /></td></tr>
<tr class="memitem:a32b1f62bf18d74209db0afe797d69bae" id="r_a32b1f62bf18d74209db0afe797d69bae"><td class="memItemLeft" align="right" valign="top">size_t&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="#a32b1f62bf18d74209db0afe797d69bae">count</a></td></tr>
<tr class="memdesc:a32b1f62bf18d74209db0afe797d69bae"><td class="mdescLeft">&#160;</td><td class="mdescRight">Number of active (filled) entries. <br /></td></tr>
</table>
<a name="details" id="details"></a><h2 id="header-details" class="groupheader">Detailed Description</h2>
<div class="textblock"><p>Minimal open-addressing hash map for 64-bit key/value pairs used in deduplication lookup. </p>
<p>Fields:</p><ul>
<li>table: Pointer to contiguous array of <a class="el" href="structkv__pair__t.html" title="Single key/value slot used internally by the open-addressing hash map.">kv_pair_t</a> entries (capacity == size).</li>
<li>size: Total number of slots allocated in table (must be &gt;= 1).</li>
<li>count: Number of occupied (non-empty) slots currently in use.</li>
</ul>
<p>Load factor guidance: insert performance degrades as count approaches size; callers may rebuild with a larger size when (count * 10 / size) exceeds a chosen threshold (e.g. 70 80%). No automatic resizing is performed. </p>
<p class="definition">Definition at line <a class="el" href="hash__map_8h_source.html#l00049">49</a> of file <a class="el" href="hash__map_8h_source.html">hash_map.h</a>.</p>
</div><a name="doc-variable-members" id="doc-variable-members"></a><h2 id="header-doc-variable-members" class="groupheader">Field Documentation</h2>
<a id="a32b1f62bf18d74209db0afe797d69bae" name="a32b1f62bf18d74209db0afe797d69bae"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a32b1f62bf18d74209db0afe797d69bae">&#9670;&#160;</a></span>count</h2>
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<td class="memname">size_t hash_map_t::count</td>
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<p>Number of active (filled) entries. </p>
<p class="definition">Definition at line <a class="el" href="hash__map_8h_source.html#l00053">53</a> of file <a class="el" href="hash__map_8h_source.html">hash_map.h</a>.</p>
<p class="reference">Referenced by <a class="el" href="hash__map_8c_source.html#l00049">create_map()</a>, <a class="el" href="hash__map_8c_source.html#l00153">insert_map()</a>, and <a class="el" href="hash__map_8c_source.html#l00101">resize_map()</a>.</p>
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<a id="acfa07d46992978b9a9d07522fcf920b8" name="acfa07d46992978b9a9d07522fcf920b8"></a>
<h2 class="memtitle"><span class="permalink"><a href="#acfa07d46992978b9a9d07522fcf920b8">&#9670;&#160;</a></span>size</h2>
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<td class="memname">size_t hash_map_t::size</td>
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<p>Allocated slot capacity of table. </p>
<p class="definition">Definition at line <a class="el" href="hash__map_8h_source.html#l00052">52</a> of file <a class="el" href="hash__map_8h_source.html">hash_map.h</a>.</p>
<p class="reference">Referenced by <a class="el" href="hash__map_8c_source.html#l00049">create_map()</a>, <a class="el" href="hash__map_8c_source.html#l00153">insert_map()</a>, <a class="el" href="hash__map_8c_source.html#l00196">lookup_map()</a>, and <a class="el" href="hash__map_8c_source.html#l00101">resize_map()</a>.</p>
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<a id="aeaa8747727df544b4757e6c46aa8779f" name="aeaa8747727df544b4757e6c46aa8779f"></a>
<h2 class="memtitle"><span class="permalink"><a href="#aeaa8747727df544b4757e6c46aa8779f">&#9670;&#160;</a></span>table</h2>
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<td class="memname"><a class="el" href="structkv__pair__t.html">kv_pair_t</a>* hash_map_t::table</td>
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<p>Array of key/value slots of length == size. </p>
<p class="definition">Definition at line <a class="el" href="hash__map_8h_source.html#l00051">51</a> of file <a class="el" href="hash__map_8h_source.html">hash_map.h</a>.</p>
<p class="reference">Referenced by <a class="el" href="hash__map_8c_source.html#l00049">create_map()</a>, <a class="el" href="hash__map_8c_source.html#l00073">free_map()</a>, <a class="el" href="hash__map_8c_source.html#l00153">insert_map()</a>, <a class="el" href="hash__map_8c_source.html#l00196">lookup_map()</a>, and <a class="el" href="hash__map_8c_source.html#l00101">resize_map()</a>.</p>
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<hr/>The documentation for this struct was generated from the following file:<ul>
<li>include/aaruformat/<a class="el" href="hash__map_8h_source.html">hash_map.h</a></li>
</ul>
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