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257 lines
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<title>libaaruformat: include/aaruformat/spamsum.h File Reference</title>
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<div id="projectname">libaaruformat<span id="projectnumber"> 1.0</span>
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<div id="projectbrief">Aaru Data Preservation Suite - Format Library</div>
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<div class="headertitle"><div class="title">spamsum.h File Reference</div></div>
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<div class="textblock"><code>#include <stdint.h></code><br />
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<p><a href="spamsum_8h_source.html">Go to the source code of this file.</a></p>
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<table class="memberdecls">
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<tr class="heading"><td colspan="2"><h2 id="header-nested-classes" class="groupheader"><a id="nested-classes" name="nested-classes"></a>
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Data Structures</h2></td></tr>
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<tr class="memitem:blockhash_5Fctx" id="r_blockhash_5Fctx"><td class="memItemLeft" align="right" valign="top">struct  </td><td class="memItemRight" valign="bottom"><a class="el" href="structblockhash__ctx.html">blockhash_ctx</a></td></tr>
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<tr class="memitem:roll_5Fstate" id="r_roll_5Fstate"><td class="memItemLeft" align="right" valign="top">struct  </td><td class="memItemRight" valign="bottom"><a class="el" href="structroll__state.html">roll_state</a></td></tr>
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<tr class="memitem:spamsum_5Fctx" id="r_spamsum_5Fctx"><td class="memItemLeft" align="right" valign="top">struct  </td><td class="memItemRight" valign="bottom"><a class="el" href="structspamsum__ctx.html">spamsum_ctx</a></td></tr>
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</table><table class="memberdecls">
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<tr class="heading"><td colspan="2"><h2 id="header-define-members" class="groupheader"><a id="define-members" name="define-members"></a>
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Macros</h2></td></tr>
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<tr class="memitem:a137a76507c72a195455009b62e28c671" id="r_a137a76507c72a195455009b62e28c671"><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="#a137a76507c72a195455009b62e28c671">SPAMSUM_LENGTH</a>   64</td></tr>
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<tr class="memitem:ab05c87bf87434740e1400b8f7fc9cbaa" id="r_ab05c87bf87434740e1400b8f7fc9cbaa"><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="#ab05c87bf87434740e1400b8f7fc9cbaa">NUM_BLOCKHASHES</a>   31</td></tr>
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<tr class="memitem:a6e3701d1edb7f42493d091d7202fa299" id="r_a6e3701d1edb7f42493d091d7202fa299"><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="#a6e3701d1edb7f42493d091d7202fa299">ROLLING_WINDOW</a>   7</td></tr>
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<tr class="memitem:adcd60db457233e4a407009f6d4ceea48" id="r_adcd60db457233e4a407009f6d4ceea48"><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="#adcd60db457233e4a407009f6d4ceea48">HASH_INIT</a>   0x28021967</td></tr>
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<tr class="memitem:a3340643b9fb0a58333f04e75ff897e03" id="r_a3340643b9fb0a58333f04e75ff897e03"><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="#a3340643b9fb0a58333f04e75ff897e03">HASH_PRIME</a>   0x01000193</td></tr>
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<tr class="memitem:ac5fb50a0e20885df11be19a6b5449749" id="r_ac5fb50a0e20885df11be19a6b5449749"><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="#ac5fb50a0e20885df11be19a6b5449749">MIN_BLOCKSIZE</a>   3</td></tr>
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<tr class="memitem:a2309f23e98c4c0370f32e3e3cb09afa5" id="r_a2309f23e98c4c0370f32e3e3cb09afa5"><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="#a2309f23e98c4c0370f32e3e3cb09afa5">FUZZY_MAX_RESULT</a>   ((2 * <a class="el" href="#a137a76507c72a195455009b62e28c671">SPAMSUM_LENGTH</a>) + 20)</td></tr>
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</table>
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<a name="doc-define-members" id="doc-define-members"></a><h2 id="header-doc-define-members" class="groupheader">Macro Definition Documentation</h2>
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<a id="a2309f23e98c4c0370f32e3e3cb09afa5" name="a2309f23e98c4c0370f32e3e3cb09afa5"></a>
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<h2 class="memtitle"><span class="permalink"><a href="#a2309f23e98c4c0370f32e3e3cb09afa5">◆ </a></span>FUZZY_MAX_RESULT</h2>
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<td class="memname">#define FUZZY_MAX_RESULT   ((2 * <a class="el" href="#a137a76507c72a195455009b62e28c671">SPAMSUM_LENGTH</a>) + 20)</td>
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<p class="definition">Definition at line <a class="el" href="spamsum_8h_source.html#l00030">30</a> of file <a class="el" href="spamsum_8h_source.html">spamsum.h</a>.</p>
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<p class="reference">Referenced by <a class="el" href="spamsum_8c_source.html#l00191">aaruf_spamsum_final()</a>, and <a class="el" href="close_8c_source.html#l00654">write_checksum_block()</a>.</p>
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<a id="adcd60db457233e4a407009f6d4ceea48" name="adcd60db457233e4a407009f6d4ceea48"></a>
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<h2 class="memtitle"><span class="permalink"><a href="#adcd60db457233e4a407009f6d4ceea48">◆ </a></span>HASH_INIT</h2>
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<td class="memname">#define HASH_INIT   0x28021967</td>
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<p class="definition">Definition at line <a class="el" href="spamsum_8h_source.html#l00027">27</a> of file <a class="el" href="spamsum_8h_source.html">spamsum.h</a>.</p>
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<p class="reference">Referenced by <a class="el" href="spamsum_8c_source.html#l00037">aaruf_spamsum_init()</a>, and <a class="el" href="spamsum_8c_source.html#l00084">fuzzy_engine_step()</a>.</p>
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<a id="a3340643b9fb0a58333f04e75ff897e03" name="a3340643b9fb0a58333f04e75ff897e03"></a>
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<h2 class="memtitle"><span class="permalink"><a href="#a3340643b9fb0a58333f04e75ff897e03">◆ </a></span>HASH_PRIME</h2>
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<td class="memname">#define HASH_PRIME   0x01000193</td>
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<p class="definition">Definition at line <a class="el" href="spamsum_8h_source.html#l00028">28</a> of file <a class="el" href="spamsum_8h_source.html">spamsum.h</a>.</p>
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<a id="ac5fb50a0e20885df11be19a6b5449749" name="ac5fb50a0e20885df11be19a6b5449749"></a>
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<h2 class="memtitle"><span class="permalink"><a href="#ac5fb50a0e20885df11be19a6b5449749">◆ </a></span>MIN_BLOCKSIZE</h2>
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<td class="memname">#define MIN_BLOCKSIZE   3</td>
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<p class="definition">Definition at line <a class="el" href="spamsum_8h_source.html#l00029">29</a> of file <a class="el" href="spamsum_8h_source.html">spamsum.h</a>.</p>
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<a id="ab05c87bf87434740e1400b8f7fc9cbaa" name="ab05c87bf87434740e1400b8f7fc9cbaa"></a>
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<h2 class="memtitle"><span class="permalink"><a href="#ab05c87bf87434740e1400b8f7fc9cbaa">◆ </a></span>NUM_BLOCKHASHES</h2>
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<td class="memname">#define NUM_BLOCKHASHES   31</td>
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<p class="definition">Definition at line <a class="el" href="spamsum_8h_source.html#l00025">25</a> of file <a class="el" href="spamsum_8h_source.html">spamsum.h</a>.</p>
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<p class="reference">Referenced by <a class="el" href="spamsum_8c_source.html#l00191">aaruf_spamsum_final()</a>, and <a class="el" href="spamsum_8c_source.html#l00175">fuzzy_try_fork_blockhash()</a>.</p>
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<a id="a6e3701d1edb7f42493d091d7202fa299" name="a6e3701d1edb7f42493d091d7202fa299"></a>
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<h2 class="memtitle"><span class="permalink"><a href="#a6e3701d1edb7f42493d091d7202fa299">◆ </a></span>ROLLING_WINDOW</h2>
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<td class="memname">#define ROLLING_WINDOW   7</td>
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<p class="definition">Definition at line <a class="el" href="spamsum_8h_source.html#l00026">26</a> of file <a class="el" href="spamsum_8h_source.html">spamsum.h</a>.</p>
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<p class="reference">Referenced by <a class="el" href="spamsum_8c_source.html#l00137">roll_hash()</a>.</p>
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<a id="a137a76507c72a195455009b62e28c671" name="a137a76507c72a195455009b62e28c671"></a>
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<h2 class="memtitle"><span class="permalink"><a href="#a137a76507c72a195455009b62e28c671">◆ </a></span>SPAMSUM_LENGTH</h2>
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<td class="memname">#define SPAMSUM_LENGTH   64</td>
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<p class="definition">Definition at line <a class="el" href="spamsum_8h_source.html#l00024">24</a> of file <a class="el" href="spamsum_8h_source.html">spamsum.h</a>.</p>
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<p class="reference">Referenced by <a class="el" href="spamsum_8c_source.html#l00191">aaruf_spamsum_final()</a>, <a class="el" href="spamsum_8c_source.html#l00084">fuzzy_engine_step()</a>, and <a class="el" href="spamsum_8c_source.html#l00155">fuzzy_try_reduce_blockhash()</a>.</p>
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<ul>
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<li class="navelem"><a href="dir_d44c64559bbebec7f509842c48db8b23.html">include</a></li><li class="navelem"><a href="dir_aeff2545c9dfcfc842fe9d84b123cb31.html">aaruformat</a></li><li class="navelem"><a href="spamsum_8h.html">spamsum.h</a></li>
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