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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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<title>memcached: hash.c File Reference</title>
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<h1>hash.c File Reference</h1><code>#include "<a class="el" href="memcached_8h-source.html">memcached.h</a>"</code><br>
<p>
<div class="dynheader">
Include dependency graph for hash.c:</div>
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<p><center><img src="hash_8c__incl.png" border="0" usemap="#hash.c_map" alt=""></center>
<map name="hash.c_map">
<area shape="rect" id="node3" href="memcached_8h.html" title="The main memcached header holding commonly used data structures and function prototypes..." alt="" coords="829,83,947,112"><area shape="rect" id="node23" href="protocol__binary_8h.html" title="protocol_binary.h" alt="" coords="955,160,1088,189"><area shape="rect" id="node26" href="stats_8h.html" title="stats.h" alt="" coords="1112,160,1181,189"><area shape="rect" id="node28" href="slabs_8h.html" title="slabs.h" alt="" coords="1205,160,1272,189"><area shape="rect" id="node30" href="assoc_8h.html" title="assoc.h" alt="" coords="1296,160,1368,189"><area shape="rect" id="node32" href="items_8h.html" title="items.h" alt="" coords="1392,160,1464,189"><area shape="rect" id="node34" href="trace_8h.html" title="trace.h" alt="" coords="1488,160,1557,189"><area shape="rect" id="node36" href="hash_8h.html" title="hash.h" alt="" coords="1581,160,1645,189"><area shape="rect" id="node38" href="util_8h.html" title="util.h" alt="" coords="1669,160,1723,189"></map>
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<tr><td colspan="2"><br><h2>Defines</h2></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="hash_8c.html#8c49a94782a573ded31a7bb1949cbf47">HASH_LITTLE_ENDIAN</a> 0</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="hash_8c.html#129f72057b84147c7c3e2a6d107f0e3b">HASH_BIG_ENDIAN</a> 0</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="hash_8c.html#ae44e21ada356d9d84450d5440fbb0c4">rot</a>(x, k) (((x)<<(k)) ^ ((x)>>(32-(k))))</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="hash_8c.html#fd9fa1747724ec6142812721997394c3">mix</a>(a, b, c)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="hash_8c.html#b4646d77540701d2eb2c877effbe5739">final</a>(a, b, c)</td></tr>
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<hr><h2>Define Documentation</h2>
<a class="anchor" name="b4646d77540701d2eb2c877effbe5739"></a><!-- doxytag: member="hash.c::final" ref="b4646d77540701d2eb2c877effbe5739" args="(a, b, c)" -->
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<td class="memname">#define final </td>
<td>(</td>
<td class="paramtype">a, <tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">b, <tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">c </td>
<td class="paramname"> </td>
<td> ) </td>
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<b>Value:</b><div class="fragment"><pre class="fragment">{ \
c ^= b; c -= <a class="code" href="hash_8c.html#ae44e21ada356d9d84450d5440fbb0c4">rot</a>(b,14); \
a ^= c; a -= <a class="code" href="hash_8c.html#ae44e21ada356d9d84450d5440fbb0c4">rot</a>(c,11); \
b ^= a; b -= <a class="code" href="hash_8c.html#ae44e21ada356d9d84450d5440fbb0c4">rot</a>(a,25); \
c ^= b; c -= <a class="code" href="hash_8c.html#ae44e21ada356d9d84450d5440fbb0c4">rot</a>(b,16); \
a ^= c; a -= <a class="code" href="hash_8c.html#ae44e21ada356d9d84450d5440fbb0c4">rot</a>(c,4); \
b ^= a; b -= <a class="code" href="hash_8c.html#ae44e21ada356d9d84450d5440fbb0c4">rot</a>(a,14); \
c ^= b; c -= <a class="code" href="hash_8c.html#ae44e21ada356d9d84450d5440fbb0c4">rot</a>(b,24); \
}
</pre></div>
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</div><p>
<a class="anchor" name="129f72057b84147c7c3e2a6d107f0e3b"></a><!-- doxytag: member="hash.c::HASH_BIG_ENDIAN" ref="129f72057b84147c7c3e2a6d107f0e3b" args="" -->
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<td class="memname">#define HASH_BIG_ENDIAN 0 </td>
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<a class="anchor" name="8c49a94782a573ded31a7bb1949cbf47"></a><!-- doxytag: member="hash.c::HASH_LITTLE_ENDIAN" ref="8c49a94782a573ded31a7bb1949cbf47" args="" -->
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<td class="memname">#define HASH_LITTLE_ENDIAN 0 </td>
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<a class="anchor" name="fd9fa1747724ec6142812721997394c3"></a><!-- doxytag: member="hash.c::mix" ref="fd9fa1747724ec6142812721997394c3" args="(a, b, c)" -->
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<td class="memname">#define mix </td>
<td>(</td>
<td class="paramtype">a, <tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">b, <tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">c </td>
<td class="paramname"> </td>
<td> ) </td>
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<b>Value:</b><div class="fragment"><pre class="fragment">{ \
a -= c; a ^= <a class="code" href="hash_8c.html#ae44e21ada356d9d84450d5440fbb0c4">rot</a>(c, 4); c += b; \
b -= a; b ^= <a class="code" href="hash_8c.html#ae44e21ada356d9d84450d5440fbb0c4">rot</a>(a, 6); a += c; \
c -= b; c ^= <a class="code" href="hash_8c.html#ae44e21ada356d9d84450d5440fbb0c4">rot</a>(b, 8); b += a; \
a -= c; a ^= <a class="code" href="hash_8c.html#ae44e21ada356d9d84450d5440fbb0c4">rot</a>(c,16); c += b; \
b -= a; b ^= <a class="code" href="hash_8c.html#ae44e21ada356d9d84450d5440fbb0c4">rot</a>(a,19); a += c; \
c -= b; c ^= <a class="code" href="hash_8c.html#ae44e21ada356d9d84450d5440fbb0c4">rot</a>(b, 4); b += a; \
}
</pre></div>
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</div><p>
<a class="anchor" name="ae44e21ada356d9d84450d5440fbb0c4"></a><!-- doxytag: member="hash.c::rot" ref="ae44e21ada356d9d84450d5440fbb0c4" args="(x, k)" -->
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<td class="memname">#define rot </td>
<td>(</td>
<td class="paramtype">x, <tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">k </td>
<td class="paramname"> </td>
<td> ) </td>
<td> (((x)<<(k)) ^ ((x)>>(32-(k))))</td>
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<hr size="1"><address style="text-align: right;"><small>Generated on Fri Apr 17 15:14:53 2009 for memcached by
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<img src="doxygen.png" alt="doxygen" align="middle" border="0"></a> 1.5.8 </small></address>
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