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139 lines
5.7 KiB
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<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
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<title>DbMpoolFile::get_priority()</title>
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<link rel="up" href="memp.html" title="Chapter 9. The DbMpoolFile Handle" />
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<link rel="prev" href="mempget_pgcookie.html" title="DbMpoolFile::get_pgcookie()" />
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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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<tr>
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<th colspan="3" align="center">DbMpoolFile::get_priority()</th>
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</tr>
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<tr>
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<td width="20%" align="left"><a accesskey="p" href="mempget_pgcookie.html">Prev</a> </td>
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<th width="60%" align="center">Chapter 9.
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The DbMpoolFile Handle
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</th>
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<td width="20%" align="right"> <a accesskey="n" href="mempset_clear_len.html">Next</a></td>
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</tr>
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<hr />
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</div>
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<div class="sect1" 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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<h2 class="title" style="clear: both"><a id="mempget_priority"></a>DbMpoolFile::get_priority()</h2>
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</div>
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</div>
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<pre class="programlisting">#include <db_cxx.h>
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int
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DbMpoolFile::get_priority(DB_CACHE_PRIORITY *priorityp);</pre>
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<p>
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The <code class="methodname">DbMpoolFile::get_priority()</code> method returns the cache priority for
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the file referenced by the <a class="link" href="memp.html" title="Chapter 9. The DbMpoolFile Handle">DbMpoolFile</a>
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handle. The priority of a page biases the replacement algorithm to be
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more or less likely to discard a page when space is needed in the
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cache. This value is set using the
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<a class="xref" href="mempset_priority.html" title="DbMpoolFile::set_priority()">DbMpoolFile::set_priority()</a>
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method.
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</p>
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<p>
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The <code class="methodname">DbMpoolFile::get_priority()</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">DbMpoolFile::get_priority()</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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<h3 class="title"><a id="id3630669"></a>Parameters</h3>
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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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<h4 class="title"><a id="id3630658"></a>priorityp</h4>
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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">DbMpoolFile::get_priority()</code> method returns a reference to the
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cache priority for the file referenced by the
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<a class="link" href="memp.html" title="Chapter 9. The DbMpoolFile Handle">DbMpoolFile</a> handle in
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<span class="bold"><strong>priorityp</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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<h3 class="title"><a id="id3630718"></a>Class</h3>
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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>, <a class="link" href="memp.html" title="Chapter 9. The DbMpoolFile Handle">DbMpoolFile</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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<h3 class="title"><a id="id3630702"></a>See Also</h3>
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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="memp.html#memplist" title="Memory Pools and Related Methods">Memory Pools and Related Methods</a>,
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<a class="xref" href="mempset_priority.html" title="DbMpoolFile::set_priority()">DbMpoolFile::set_priority()</a>
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</p>
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</div>
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</div>
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<div class="navfooter">
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<hr />
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<table width="100%" summary="Navigation footer">
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<tr>
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<td width="40%" align="left"><a accesskey="p" href="mempget_pgcookie.html">Prev</a> </td>
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<td width="20%" align="center">
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<a accesskey="u" href="memp.html">Up</a>
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</td>
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<td width="40%" align="right"> <a accesskey="n" href="mempset_clear_len.html">Next</a></td>
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</tr>
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<tr>
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<td width="40%" align="left" valign="top">DbMpoolFile::get_pgcookie() </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>
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<td width="40%" align="right" valign="top"> DbMpoolFile::set_clear_len()</td>
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</body>
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