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>DB_ENV->mutex_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="mutex.html" title="Chapter��9.�� Mutex Methods" /> 11 <link rel="prev" href="mutexstat.html" title="DB_ENV->mutex_stat()" /> 12 <link rel="next" href="mutexunlock.html" title="DB_ENV->mutex_unlock()" /> 13 </head> 14 <body> 15 <div class="navheader"> 16 <table width="100%" summary="Navigation header"> 17 <tr> 18 <th colspan="3" align="center">DB_ENV->mutex_stat_print()</th> 19 </tr> 20 <tr> 21 <td width="20%" align="left"><a accesskey="p" href="mutexstat.html">Prev</a>��</td> 22 <th width="60%" align="center">Chapter��9.�� 23 Mutex Methods 24 </th> 25 <td width="20%" align="right">��<a accesskey="n" href="mutexunlock.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="mutexstat_print"></a>DB_ENV->mutex_stat_print()</h2> 35 </div> 36 </div> 37 </div> 38 <pre class="programlisting">#include <db.h> 39 40int 41DB_ENV->mutex_stat_print(DB_ENV *env, u_int32_t flags); </pre> 42 <p> 43 The <code class="methodname">DB_ENV->mutex_stat_print()</code> method displays the mutex subsystem 44 statistical information, as described for the <code class="methodname">DB_ENV->mutex_stat()</code> 45 method. The information is printed to a specified output channel (see 46 the <a class="xref" href="envset_msgfile.html" title="DB_ENV->set_msgfile()">DB_ENV->set_msgfile()</a> 47 method for more information), or passed to an application callback 48 function (see the <a class="xref" href="envset_msgcall.html" title="DB_ENV->set_msgcall()">DB_ENV->set_msgcall()</a> 49 method for more information). 50 </p> 51 <p> 52 The <code class="methodname">DB_ENV->mutex_stat_print()</code> method may not be called before the 53 <a class="xref" href="envopen.html" title="DB_ENV->open()">DB_ENV->open()</a> method is called. 54 </p> 55 <p> 56 The <code class="methodname">DB_ENV->mutex_stat_print()</code> <span> 57 <span> 58 method returns a non-zero error value on failure and 0 on success. 59 </span> 60 61 </span> 62 </p> 63 <div class="sect2" lang="en" xml:lang="en"> 64 <div class="titlepage"> 65 <div> 66 <div> 67 <h3 class="title"><a id="id1695684"></a>Parameters</h3> 68 </div> 69 </div> 70 </div> 71 <div class="sect3" lang="en" xml:lang="en"> 72 <div class="titlepage"> 73 <div> 74 <div> 75 <h4 class="title"><a id="id1695693"></a>flags</h4> 76 </div> 77 </div> 78 </div> 79 <p> 80 The <span class="bold"><strong>flags</strong></span> parameter must be set to 0 81 or by bitwise inclusively <span class="bold"><strong>OR</strong></span>'ing 82 together one or more of the following values: 83 </p> 84 <div class="itemizedlist"> 85 <ul type="disc"> 86 <li> 87 <p> 88 <code class="literal">DB_STAT_ALL</code> 89 </p> 90 <p> 91 Display all available information. 92 </p> 93 </li> 94 <li> 95 <p> 96 <code class="literal">DB_STAT_CLEAR</code> 97 </p> 98 <p> 99 Reset statistics after displaying their values. 100 </p> 101 </li> 102 </ul> 103 </div> 104 </div> 105 </div> 106 <div class="sect2" lang="en" xml:lang="en"> 107 <div class="titlepage"> 108 <div> 109 <div> 110 <h3 class="title"><a id="id1696046"></a>Class</h3> 111 </div> 112 </div> 113 </div> 114 <p> 115 <a class="link" href="env.html" title="Chapter��5.�� The DB_ENV Handle">DB_ENV</a> 116 </p> 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="id1696061"></a>See Also</h3> 123 </div> 124 </div> 125 </div> 126 <p> 127 <a class="xref" href="mutex.html#mutexlist" title="Mutex Methods">Mutex Methods</a> 128 </p> 129 </div> 130 </div> 131 <div class="navfooter"> 132 <hr /> 133 <table width="100%" summary="Navigation footer"> 134 <tr> 135 <td width="40%" align="left"><a accesskey="p" href="mutexstat.html">Prev</a>��</td> 136 <td width="20%" align="center"> 137 <a accesskey="u" href="mutex.html">Up</a> 138 </td> 139 <td width="40%" align="right">��<a accesskey="n" href="mutexunlock.html">Next</a></td> 140 </tr> 141 <tr> 142 <td width="40%" align="left" valign="top">DB_ENV->mutex_stat()��</td> 143 <td width="20%" align="center"> 144 <a accesskey="h" href="index.html">Home</a> 145 </td> 146 <td width="40%" align="right" valign="top">��DB_ENV->mutex_unlock()</td> 147 </tr> 148 </table> 149 </div> 150 </body> 151</html> 152