mirror of
https://github.com/yasuhirokimura/db18
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Yasuhiro KIMURA
198 lines
7.1 KiB
HTML
198 lines
7.1 KiB
HTML
<?xml version="1.0" encoding="UTF-8" standalone="no"?>
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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
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<html xmlns="http://www.w3.org/1999/xhtml">
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<head>
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<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
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<title>DB_ENV->memp_stat_print()</title>
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<link rel="stylesheet" href="apiReference.css" type="text/css" />
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<meta name="generator" content="DocBook XSL Stylesheets V1.73.2" />
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<link rel="start" href="index.html" title="Berkeley DB C API Reference" />
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<link rel="up" href="memp.html" title="Chapter 8. The DB_MPOOLFILE Handle" />
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<link rel="prev" href="mempstat.html" title="DB_ENV->memp_stat()" />
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<link rel="next" href="mempsync.html" title="DB_ENV->memp_sync()" />
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</head>
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<body>
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<div xmlns="" class="navheader">
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<div class="libver">
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<p>Library Version 18.1.40</p>
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</div>
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<table width="100%" summary="Navigation header">
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<tr>
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<th colspan="3" align="center">
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<span xmlns="http://www.w3.org/1999/xhtml">DB_ENV->memp_stat_print()</span>
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</th>
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</tr>
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<tr>
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<td width="20%" align="left"><a accesskey="p" href="mempstat.html">Prev</a> </td>
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<th width="60%" align="center">Chapter 8.
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The DB_MPOOLFILE Handle
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</th>
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<td width="20%" align="right"> <a accesskey="n" href="mempsync.html">Next</a></td>
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</tr>
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</table>
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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="mempstat_print"></a>
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<span>DB_ENV->memp_stat_print()</span>
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</h2>
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</div>
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</div>
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</div>
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<pre class="programlisting">#include <db.h>
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int
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DB_ENV->memp_stat_print(DB_ENV *env, u_int32_t flags); </pre>
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<p>
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The <code class="methodname">DB_ENV->memp_stat_print()</code> method displays cache
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subsystem statistical information, as described for the
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<a class="xref" href="mempstat.html" title="DB_ENV->memp_stat()">
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<span>DB_ENV->memp_stat()</span>
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</a> method. The information is printed to
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a specified output channel (see the
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<a class="xref" href="envset_msgfile.html" title="DB_ENV->set_msgfile()">
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<span>DB_ENV->set_msgfile()</span>
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</a> method for more
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information), or passed to an application callback function (see the
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<a class="xref" href="envset_msgcall.html" title="DB_ENV->set_msgcall()">
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<span>DB_ENV->set_msgcall()</span>
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</a> method for more
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information).
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</p>
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<p>
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The <code class="methodname">DB_ENV->memp_stat_print()</code> method may not be called before the
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<a class="xref" href="envopen.html" title="DB_ENV->open()">
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<span>DB_ENV->open()</span>
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</a> method is
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called.
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</p>
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<p>
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The <code class="methodname">DB_ENV->memp_stat_print()</code> <span>
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<span>
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method returns a non-zero error value on failure and 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="idm139753799057312"></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="idm139753799087712"></a>flags</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 <span class="bold"><strong>flags</strong></span> parameter must be set to 0
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or by bitwise inclusively <span class="bold"><strong>OR</strong></span>'ing
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together one or more of the following values:
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</p>
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<div class="itemizedlist">
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<ul type="disc">
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<li>
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<p><a id="mempstat_print_DB_STAT_ALL"></a>
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<code class="literal">DB_STAT_ALL</code>
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</p>
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<p>
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Display all available information.
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</p>
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</li>
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<li>
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<p><a id="mempstat_print_DB_STAT_ALLOC"></a>
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<code class="literal">DB_STAT_ALLOC</code>
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</p>
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<p>
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Display allocation information. To display allocation information, both
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DB_STAT_ALLOC and DB_STAT_ALL need to be set.
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</p>
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</li>
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<li>
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<p><a id="mempstat_print_DB_STAT_CLEAR"></a>
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<code class="literal">DB_STAT_CLEAR</code>
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</p>
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<p>
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Reset statistics after displaying their values.
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</p>
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</li>
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<li>
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<p><a id="mempstat_print_DB_STAT_MEMP_HASH"></a>
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<code class="literal">DB_STAT_MEMP_HASH</code>
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</p>
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<p>
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Display the buffers with hash chains.
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</p>
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</li>
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</ul>
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</div>
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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="idm139753799012096"></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 DB_ENV Handle">DB_ENV</a>, <a class="link" href="memp.html" title="Chapter 8. The DB_MPOOLFILE Handle">DB_MPOOLFILE</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="idm139753799027696"></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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</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="mempstat.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="mempsync.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">
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<span>DB_ENV->memp_stat()</span>
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</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">
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<span>DB_ENV->memp_sync()</span>
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</td>
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</tr>
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</table>
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</div>
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</body>
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</html>
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