2011-09-13 17:44:24 +00:00
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<title>DbEnv::get_lk_partitions()</title>
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<link rel="prev" href="envget_lk_max_objects.html" title="DbEnv::get_lk_max_objects()" />
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<link rel="next" href="envget_lk_priority.html" title="DbEnv::get_lk_priority()" />
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<p>Library Version 11.2.5.2</p>
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<table width="100%" summary="Navigation header">
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<th colspan="3" align="center">DbEnv::get_lk_partitions()</th>
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</tr>
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<tr>
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<td width="20%" align="left"><a accesskey="p" href="envget_lk_max_objects.html">Prev</a> </td>
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<th width="60%" align="center">Chapter 7.
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The DbLock Handle
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</th>
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<td width="20%" align="right"> <a accesskey="n" href="envget_lk_priority.html">Next</a></td>
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<div class="titlepage">
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<div>
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<h2 class="title" style="clear: both"><a id="envget_lk_partitions"></a>DbEnv::get_lk_partitions()</h2>
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<pre class="programlisting">#include <db_cxx.h>
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int
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DbEnv::get_lk_partitions(u_int32_t *lk_partitions);</pre>
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<p>
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The <code class="methodname">DbEnv::get_lk_partitions()</code> method returns the number of
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lock table partitions used in the Berkeley DB environment. You can configure this using the
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<a class="xref" href="envset_lk_partitions.html" title="DbEnv::set_lk_partitions()">DbEnv::set_lk_partitions()</a>
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method.
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</p>
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<p>
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The <code class="methodname">DbEnv::get_lk_partitions()</code> method may be called at any time
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during the life of the application.
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</p>
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<p>
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The <code class="methodname">DbEnv::get_lk_partitions()</code> <span>
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<span>
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method either returns a non-zero error value or throws an
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exception that encapsulates a non-zero error value on
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failure, and returns 0 on success.
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</span>
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</span>
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</p>
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<div class="sect2" lang="en" xml:lang="en">
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<div class="titlepage">
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<div>
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<div>
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2011-12-20 00:07:10 +00:00
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<h3 class="title"><a id="id3611594"></a>Parameters</h3>
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2011-09-13 17:44:24 +00:00
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</div>
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</div>
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</div>
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<div class="sect3" lang="en" xml:lang="en">
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<div class="titlepage">
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<div>
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<div>
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2011-12-20 00:07:10 +00:00
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<h4 class="title"><a id="id3611583"></a>lk_partitions</h4>
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2011-09-13 17:44:24 +00:00
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</div>
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</div>
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</div>
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<p>
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The <code class="methodname">DbEnv::get_lk_partitions()</code> method returns the number of
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partitions in <span class="bold"><strong>lk_partitions</strong></span>.
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</p>
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</div>
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</div>
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<div class="sect2" lang="en" xml:lang="en">
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<div class="titlepage">
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<div>
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<div>
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2011-12-20 00:07:10 +00:00
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<h3 class="title"><a id="id3611319"></a>Errors</h3>
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2011-09-13 17:44:24 +00:00
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</div>
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</div>
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</div>
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<p>
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The <code class="methodname">DbEnv::get_lk_partitions()</code> <span>
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<span>
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method may fail and throw a <a class="link" href="dbexception.html" title="Chapter 6. The DbException Class">DbException</a>
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exception, encapsulating one of the following non-zero errors, or return one
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of the following non-zero errors:
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</span>
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</span>
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</p>
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<div class="sect3" lang="en" xml:lang="en">
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<div class="titlepage">
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<div>
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<div>
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2011-12-20 00:07:10 +00:00
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<h4 class="title"><a id="id3611710"></a>EINVAL</h4>
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2011-09-13 17:44:24 +00:00
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</div>
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</div>
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</div>
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<p>
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The method was called on an environment which had been
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opened without being configured for locking.
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</p>
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</div>
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</div>
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<div class="sect2" lang="en" xml:lang="en">
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<div class="titlepage">
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<div>
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<div>
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2011-12-20 00:07:10 +00:00
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<h3 class="title"><a id="id3611692"></a>Class</h3>
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2011-09-13 17:44:24 +00:00
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</div>
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</div>
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</div>
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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="lock.html" title="Chapter 7. The DbLock Handle">DbLock</a>
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</p>
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</div>
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<div class="sect2" lang="en" xml:lang="en">
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<div class="titlepage">
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<div>
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<div>
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2011-12-20 00:07:10 +00:00
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<h3 class="title"><a id="id3611731"></a>See Also</h3>
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2011-09-13 17:44:24 +00:00
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</div>
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</div>
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</div>
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<p>
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<a class="xref" href="lock.html#locklist" title="Locking Subsystem and Related Methods">Locking Subsystem and Related Methods</a>,
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<a class="xref" href="envset_lk_partitions.html" title="DbEnv::set_lk_partitions()">DbEnv::set_lk_partitions()</a>
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</p>
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</div>
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</div>
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<td width="40%" align="left"><a accesskey="p" href="envget_lk_max_objects.html">Prev</a> </td>
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<td width="20%" align="center">
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<a accesskey="u" href="lock.html">Up</a>
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</td>
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<td width="40%" align="right"> <a accesskey="n" href="envget_lk_priority.html">Next</a></td>
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<td width="40%" align="left" valign="top">DbEnv::get_lk_max_objects() </td>
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<td width="20%" align="center">
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<a accesskey="h" href="index.html">Home</a>
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<td width="40%" align="right" valign="top"> DbEnv::get_lk_priority()</td>
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