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->log_flush()</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="lsn.html" title="Chapter��7.�� The DB_LSN Handle" /> 11 <link rel="prev" href="logfile.html" title="DB_ENV->log_file()" /> 12 <link rel="next" href="envlog_get_config.html" title="DB_ENV->log_get_config()" /> 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->log_flush()</th> 19 </tr> 20 <tr> 21 <td width="20%" align="left"><a accesskey="p" href="logfile.html">Prev</a>��</td> 22 <th width="60%" align="center">Chapter��7.�� 23 The DB_LSN Handle 24 </th> 25 <td width="20%" align="right">��<a accesskey="n" href="envlog_get_config.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="logflush"></a>DB_ENV->log_flush()</h2> 35 </div> 36 </div> 37 </div> 38 <pre class="programlisting">#include <db.h> 39 40int 41DB_ENV->log_flush(DB_ENV *env, const DB_LSN *lsn); </pre> 42 <p> 43 The <code class="methodname">DB_ENV->log_flush()</code> method writes log records to disk. 44 </p> 45 <p> 46 The <code class="methodname">DB_ENV->log_flush()</code> <span> 47 <span> 48 method returns a non-zero error value on failure and 0 on success. 49 </span> 50 51 </span> 52 </p> 53 <div class="sect2" lang="en" xml:lang="en"> 54 <div class="titlepage"> 55 <div> 56 <div> 57 <h3 class="title"><a id="id1681101"></a>Parameters</h3> 58 </div> 59 </div> 60 </div> 61 <div class="sect3" lang="en" xml:lang="en"> 62 <div class="titlepage"> 63 <div> 64 <div> 65 <h4 class="title"><a id="id1681195"></a>lsn</h4> 66 </div> 67 </div> 68 </div> 69 <p> 70 All log records with <a class="link" href="lsn.html" title="Chapter��7.�� The DB_LSN Handle">DB_LSN</a> 71 values less than or equal 72 to the <span class="bold"><strong>lsn</strong></span> parameter are written to 73 disk. If <span class="bold"><strong>lsn</strong></span> is NULL, all records in 74 the log are flushed. 75 </p> 76 </div> 77 </div> 78 <div class="sect2" lang="en" xml:lang="en"> 79 <div class="titlepage"> 80 <div> 81 <div> 82 <h3 class="title"><a id="id1680877"></a>Errors</h3> 83 </div> 84 </div> 85 </div> 86 <p> 87 The <code class="methodname">DB_ENV->log_flush()</code> <span> 88 <span> 89 method may fail and return one of the following non-zero errors: 90 </span> 91 92 </span> 93 </p> 94 <div class="sect3" lang="en" xml:lang="en"> 95 <div class="titlepage"> 96 <div> 97 <div> 98 <h4 class="title"><a id="id1681157"></a>EINVAL</h4> 99 </div> 100 </div> 101 </div> 102 <p> 103 An invalid flag value or parameter was specified. 104 </p> 105 </div> 106 </div> 107 <div class="sect2" lang="en" xml:lang="en"> 108 <div class="titlepage"> 109 <div> 110 <div> 111 <h3 class="title"><a id="id1681484"></a>Class</h3> 112 </div> 113 </div> 114 </div> 115 <p> 116 <a class="link" href="env.html" title="Chapter��5.�� The DB_ENV Handle">DB_ENV</a>, 117 <a class="link" href="logc.html" title="The DB_LOGC Handle">DB_LOGC</a>, 118 <a class="link" href="lsn.html" title="Chapter��7.�� The DB_LSN Handle">DB_LSN</a> 119 </p> 120 </div> 121 <div class="sect2" lang="en" xml:lang="en"> 122 <div class="titlepage"> 123 <div> 124 <div> 125 <h3 class="title"><a id="id1681528"></a>See Also</h3> 126 </div> 127 </div> 128 </div> 129 <p> 130 <a class="xref" href="lsn.html#loglist" title="Logging Subsystem and Related Methods">Logging Subsystem and Related Methods</a> 131 </p> 132 </div> 133 </div> 134 <div class="navfooter"> 135 <hr /> 136 <table width="100%" summary="Navigation footer"> 137 <tr> 138 <td width="40%" align="left"><a accesskey="p" href="logfile.html">Prev</a>��</td> 139 <td width="20%" align="center"> 140 <a accesskey="u" href="lsn.html">Up</a> 141 </td> 142 <td width="40%" align="right">��<a accesskey="n" href="envlog_get_config.html">Next</a></td> 143 </tr> 144 <tr> 145 <td width="40%" align="left" valign="top">DB_ENV->log_file()��</td> 146 <td width="20%" align="center"> 147 <a accesskey="h" href="index.html">Home</a> 148 </td> 149 <td width="40%" align="right" valign="top">��DB_ENV->log_get_config()</td> 150 </tr> 151 </table> 152 </div> 153 </body> 154</html> 155