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->lock_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="lock.html" title="Chapter��6.�� The DB_LOCK Handle" /> 11 <link rel="prev" href="lockstat.html" title="DB_ENV->lock_stat()" /> 12 <link rel="next" href="lockvec.html" title="DB_ENV->lock_vec()" /> 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->lock_stat_print()</th> 19 </tr> 20 <tr> 21 <td width="20%" align="left"><a accesskey="p" href="lockstat.html">Prev</a>��</td> 22 <th width="60%" align="center">Chapter��6.�� 23 The DB_LOCK Handle 24 </th> 25 <td width="20%" align="right">��<a accesskey="n" href="lockvec.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="lockstat_print"></a>DB_ENV->lock_stat_print()</h2> 35 </div> 36 </div> 37 </div> 38 <pre class="programlisting">#include <db.h> 39 40int 41DB_ENV->lock_stat_print(DB_ENV *env, u_int32_t flags); </pre> 42 <p> 43 The <code class="methodname">DB_ENV->lock_stat_print()</code> method displays the locking subsystem 44 statistical information, as described for the <code class="methodname">DB_ENV->lock_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 49 <a class="xref" href="envset_msgcall.html" title="DB_ENV->set_msgcall()">DB_ENV->set_msgcall()</a> 50 method for more information). 51 </p> 52 <p> 53 The <code class="methodname">DB_ENV->lock_stat_print()</code> method may not be called before the 54 <a class="xref" href="envopen.html" title="DB_ENV->open()">DB_ENV->open()</a> method is 55 called. 56 </p> 57 <p> 58 The <code class="methodname">DB_ENV->lock_stat_print()</code> <span> 59 <span> 60 method returns a non-zero error value on failure and 0 on success. 61 </span> 62 63 </span> 64 </p> 65 <div class="sect2" lang="en" xml:lang="en"> 66 <div class="titlepage"> 67 <div> 68 <div> 69 <h3 class="title"><a id="id1678936"></a>Parameters</h3> 70 </div> 71 </div> 72 </div> 73 <div class="sect3" lang="en" xml:lang="en"> 74 <div class="titlepage"> 75 <div> 76 <div> 77 <h4 class="title"><a id="id1678969"></a>flags</h4> 78 </div> 79 </div> 80 </div> 81 <p> 82 The <span class="bold"><strong>flags</strong></span> parameter must be set to 0 83 or by bitwise inclusively <span class="bold"><strong>OR</strong></span>'ing 84 together one or more of the following values: 85 </p> 86 <div class="itemizedlist"> 87 <ul type="disc"> 88 <li> 89 <p><a id="stat_print_DB_STAT_ALL"></a> 90 <code class="literal">DB_STAT_ALL</code> 91 </p> 92 <p> 93 Display all available information. 94 </p> 95 </li> 96 <li> 97 <p><a id="stat_print_DB_STAT_CLEAR"></a> 98 <code class="literal">DB_STAT_CLEAR</code> 99 </p> 100 <p> 101 Reset statistics after displaying their values. 102 </p> 103 </li> 104 <li> 105 <p><a id="stat_print_DB_STAT_LOCK_CONF"></a> 106 <code class="literal">DB_STAT_LOCK_CONF</code> 107 </p> 108 <p> 109 Display the lock conflict matrix. 110 </p> 111 </li> 112 <li> 113 <p><a id="stat_print_DB_STAT_LOCK_LOCKERS"></a> 114 <code class="literal">DB_STAT_LOCK_LOCKERS</code> 115 </p> 116 <p> 117 Display the lockers within hash chains. 118 </p> 119 </li> 120 <li> 121 <p><a id="stat_print_DB_STAT_LOCK_OBJECTS"></a> 122 <code class="literal">DB_STAT_LOCK_OBJECTS</code> 123 </p> 124 <p> 125 Display the lock objects within hash chains. 126 </p> 127 </li> 128 <li> 129 <p><a id="stat_print_DB_STAT_LOCK_PARAMS"></a> 130 <code class="literal">DB_STAT_LOCK_PARAMS</code> 131 </p> 132 <p> 133 Display the locking subsystem parameters. 134 </p> 135 </li> 136 </ul> 137 </div> 138 </div> 139 </div> 140 <div class="sect2" lang="en" xml:lang="en"> 141 <div class="titlepage"> 142 <div> 143 <div> 144 <h3 class="title"><a id="id1679280"></a>Class</h3> 145 </div> 146 </div> 147 </div> 148 <p> 149 <a class="link" href="env.html" title="Chapter��5.�� The DB_ENV Handle">DB_ENV</a>, 150 <a class="link" href="lock.html" title="Chapter��6.�� The DB_LOCK Handle">DB_LOCK</a> 151 </p> 152 </div> 153 <div class="sect2" lang="en" xml:lang="en"> 154 <div class="titlepage"> 155 <div> 156 <div> 157 <h3 class="title"><a id="id1678964"></a>See Also</h3> 158 </div> 159 </div> 160 </div> 161 <p> 162 <a class="xref" href="lock.html#locklist" title="Locking Subsystem and Related Methods">Locking Subsystem and Related Methods</a> 163 </p> 164 </div> 165 </div> 166 <div class="navfooter"> 167 <hr /> 168 <table width="100%" summary="Navigation footer"> 169 <tr> 170 <td width="40%" align="left"><a accesskey="p" href="lockstat.html">Prev</a>��</td> 171 <td width="20%" align="center"> 172 <a accesskey="u" href="lock.html">Up</a> 173 </td> 174 <td width="40%" align="right">��<a accesskey="n" href="lockvec.html">Next</a></td> 175 </tr> 176 <tr> 177 <td width="40%" align="left" valign="top">DB_ENV->lock_stat()��</td> 178 <td width="20%" align="center"> 179 <a accesskey="h" href="index.html">Home</a> 180 </td> 181 <td width="40%" align="right" valign="top">��DB_ENV->lock_vec()</td> 182 </tr> 183 </table> 184 </div> 185 </body> 186</html> 187