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119 lines
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<p>Library Version 11.2.5.2</p>
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<th colspan="3" align="center">DbEnv::set_mp_tablesize()</th>
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<td width="20%" align="left"><a accesskey="p" href="envset_mp_pagesize.html">Prev</a> </td>
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The DbMpoolFile Handle
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<h2 class="title" style="clear: both"><a id="envset_mp_tablesize"></a>DbEnv::set_mp_tablesize()</h2>
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<pre class="programlisting">#include <db_cxx.h>
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int
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DbEnv::set_mp_tablesize(u_int32_t tablesize);</pre>
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<p>
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The <code class="methodname">DbEnv::set_mp_tablesize()</code> method overrides the calculated hash tablesize. Tablesize is adjusted to a near prime number to enhance the hashing algorithm.
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</p>
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<p>
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You must call this method only before the environment is opened.
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<div class="titlepage">
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<div>
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<h3 class="title"><a id="id3647261"></a>Parameters</h3>
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<div class="sect3" lang="en" xml:lang="en">
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<div class="titlepage">
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<h4 class="title"><a id="id3647264"></a>tablesize</h4>
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</div>
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<p>
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The tablesize parameter specifies the size of the buffer pool hash table. It is adjusted to a near prime number to enhance the hashing algorithm.
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<p>
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<a class="link" href="env.html" title="Chapter 5. The DbEnv Handle">DbEnv</a>,
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<a class="link" href="memp.html" title="Chapter 9. The DbMpoolFile Handle">DbMpoolFile</a>
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<h3 class="title"><a id="id3647511"></a>See Also</h3>
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</div>
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</div>
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<p>
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<a class="xref" href="memp.html#memplist" title="Memory Pools and Related Methods">Memory Pools and Related Methods</a>,
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<a class="xref" href="envget_mp_tablesize.html" title="DbEnv::get_mp_tablesize()">DbEnv::get_mp_tablesize()</a>
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<td width="40%" align="left" valign="top">DbEnv::set_mp_pagesize() </td>
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<td width="40%" align="right" valign="top"> DbMpoolFile::close()</td>
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