1<?xml version="1.0" encoding="UTF-8" standalone="no"?> 2<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> 3<html xmlns="http://www.w3.org/1999/xhtml"> 4 <head> 5 <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /> 6 <title>DbEnv::memp_stat_print()</title> 7 <link rel="stylesheet" href="apiReference.css" type="text/css" /> 8 <meta name="generator" content="DocBook XSL Stylesheets V1.73.2" /> 9 <link rel="start" href="index.html" title="Berkeley DB C++ API Reference" /> 10 <link rel="up" href="memp.html" title="Chapter 9. The DbMpoolFile Handle" /> 11 <link rel="prev" href="mempstat.html" title="DbEnv::memp_stat()" /> 12 <link rel="next" href="mempsync.html" title="DbEnv::memp_sync()" /> 13 </head> 14 <body> 15 <div class="navheader"> 16 <table width="100%" summary="Navigation header"> 17 <tr> 18 <th colspan="3" align="center">DbEnv::memp_stat_print()</th> 19 </tr> 20 <tr> 21 <td width="20%" align="left"><a accesskey="p" href="mempstat.html">Prev</a> </td> 22 <th width="60%" align="center">Chapter 9. 23 The DbMpoolFile Handle 24 </th> 25 <td width="20%" align="right"> <a accesskey="n" href="mempsync.html">Next</a></td> 26 </tr> 27 </table> 28 <hr /> 29 </div> 30 <div class="sect1" lang="en" xml:lang="en"> 31 <div class="titlepage"> 32 <div> 33 <div> 34 <h2 class="title" style="clear: both"><a id="mempstat_print"></a>DbEnv::memp_stat_print()</h2> 35 </div> 36 </div> 37 </div> 38 <pre class="programlisting">#include <db_cxx.h> 39 40int 41DbEnv::memp_stat_print(u_int32_t flags);</pre> 42 <p> 43 The <code class="methodname">DbEnv::memp_stat_print()</code> method displays cache 44 subsystem statistical information, as described for the 45 <a class="xref" href="mempstat.html" title="DbEnv::memp_stat()">DbEnv::memp_stat()</a> method. The information is printed to 46 a specified output channel (see the 47 <a class="xref" href="envset_msgfile.html" title="DbEnv::set_msgfile()">DbEnv::set_msgfile()</a> method for more 48 information), or passed to an application callback function (see the 49 <a class="xref" href="envset_msgcall.html" title="DbEnv::set_msgcall()">DbEnv::set_msgcall()</a> method for more 50 information). 51 </p> 52 <p> 53 The <code class="methodname">DbEnv::memp_stat_print()</code> method may not be called before the 54 <a class="xref" href="envopen.html" title="DbEnv::open()">DbEnv::open()</a> method is 55 called. 56 </p> 57 <p> 58 The <code class="methodname">DbEnv::memp_stat_print()</code> <span> 59 60 <span> 61 method either returns a non-zero error value or throws an 62 exception that encapsulates a non-zero error value on 63 failure, and returns 0 on success. 64 </span> 65 </span> 66 </p> 67 <div class="sect2" lang="en" xml:lang="en"> 68 <div class="titlepage"> 69 <div> 70 <div> 71 <h3 class="title"><a id="id1692029"></a>Parameters</h3> 72 </div> 73 </div> 74 </div> 75 <div class="sect3" lang="en" xml:lang="en"> 76 <div class="titlepage"> 77 <div> 78 <div> 79 <h4 class="title"><a id="id1692079"></a>flags</h4> 80 </div> 81 </div> 82 </div> 83 <p> 84 The <span class="bold"><strong>flags</strong></span> parameter must be set to 0 85 or by bitwise inclusively <span class="bold"><strong>OR</strong></span>'ing 86 together one or more of the following values: 87 </p> 88 <div class="itemizedlist"> 89 <ul type="disc"> 90 <li> 91 <p><a id="stat_print_DB_STAT_ALL"></a> 92 <code class="literal">DB_STAT_ALL</code> 93 </p> 94 <p> 95 Display all available information. 96 </p> 97 </li> 98 <li> 99 <p><a id="stat_print_DB_STAT_CLEAR"></a> 100 <code class="literal">DB_STAT_CLEAR</code> 101 </p> 102 <p> 103 Reset statistics after displaying their values. 104 </p> 105 </li> 106 <li> 107 <p><a id="stat_print_DB_STAT_MEMP_HASH"></a> 108 <code class="literal">DB_STAT_MEMP_HASH</code> 109 </p> 110 <p> 111 Display the buffers with hash chains. 112 </p> 113 </li> 114 </ul> 115 </div> 116 </div> 117 </div> 118 <div class="sect2" lang="en" xml:lang="en"> 119 <div class="titlepage"> 120 <div> 121 <div> 122 <h3 class="title"><a id="id1692340"></a>Class</h3> 123 </div> 124 </div> 125 </div> 126 <p> 127 <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> 128 </p> 129 </div> 130 <div class="sect2" lang="en" xml:lang="en"> 131 <div class="titlepage"> 132 <div> 133 <div> 134 <h3 class="title"><a id="id1692352"></a>See Also</h3> 135 </div> 136 </div> 137 </div> 138 <p> 139 <a class="xref" href="memp.html#memplist" title="Memory Pools and Related Methods">Memory Pools and Related Methods</a> 140 </p> 141 </div> 142 </div> 143 <div class="navfooter"> 144 <hr /> 145 <table width="100%" summary="Navigation footer"> 146 <tr> 147 <td width="40%" align="left"><a accesskey="p" href="mempstat.html">Prev</a> </td> 148 <td width="20%" align="center"> 149 <a accesskey="u" href="memp.html">Up</a> 150 </td> 151 <td width="40%" align="right"> <a accesskey="n" href="mempsync.html">Next</a></td> 152 </tr> 153 <tr> 154 <td width="40%" align="left" valign="top">DbEnv::memp_stat() </td> 155 <td width="20%" align="center"> 156 <a accesskey="h" href="index.html">Home</a> 157 </td> 158 <td width="40%" align="right" valign="top"> DbEnv::memp_sync()</td> 159 </tr> 160 </table> 161 </div> 162 </body> 163</html> 164