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>DbMpoolFile::sync()</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="mempput.html" title="DbMpoolFile::put()" /> 12 <link rel="next" href="mempget_clear_len.html" title="DbMpoolFile::get_clear_len()" /> 13 </head> 14 <body> 15 <div class="navheader"> 16 <table width="100%" summary="Navigation header"> 17 <tr> 18 <th colspan="3" align="center">DbMpoolFile::sync()</th> 19 </tr> 20 <tr> 21 <td width="20%" align="left"><a accesskey="p" href="mempput.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="mempget_clear_len.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="mempfsync"></a>DbMpoolFile::sync()</h2> 35 </div> 36 </div> 37 </div> 38 <pre class="programlisting">#include <db_cxx.h> 39 40int 41DbMpoolFile::sync();</pre> 42 <p> 43 The <code class="methodname">DbMpoolFile::sync()</code> method writes all modified pages associated with 44 the <a class="link" href="memp.html" title="Chapter��9.�� The DbMpoolFile Handle">DbMpoolFile</a> back to the source file. If any of the 45 modified pages are <span class="emphasis"><em>pinned</em></span> (that is, currently in use), 46 <code class="methodname">DbMpoolFile::sync()</code> will ignore them. 47 </p> 48 <p> 49 The <code class="methodname">DbMpoolFile::sync()</code> <span> 50 51 <span> 52 method either returns a non-zero error value or throws an 53 exception that encapsulates a non-zero error value on 54 failure, and returns 0 on success. 55 </span> 56 </span> 57 </p> 58 <div class="sect2" lang="en" xml:lang="en"> 59 <div class="titlepage"> 60 <div> 61 <div> 62 <h3 class="title"><a id="id1695271"></a>Class</h3> 63 </div> 64 </div> 65 </div> 66 <p> 67 <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> 68 </p> 69 </div> 70 <div class="sect2" lang="en" xml:lang="en"> 71 <div class="titlepage"> 72 <div> 73 <div> 74 <h3 class="title"><a id="id1694830"></a>See Also</h3> 75 </div> 76 </div> 77 </div> 78 <p> 79 <a class="xref" href="memp.html#memplist" title="Memory Pools and Related Methods">Memory Pools and Related Methods</a> 80 </p> 81 </div> 82 </div> 83 <div class="navfooter"> 84 <hr /> 85 <table width="100%" summary="Navigation footer"> 86 <tr> 87 <td width="40%" align="left"><a accesskey="p" href="mempput.html">Prev</a>��</td> 88 <td width="20%" align="center"> 89 <a accesskey="u" href="memp.html">Up</a> 90 </td> 91 <td width="40%" align="right">��<a accesskey="n" href="mempget_clear_len.html">Next</a></td> 92 </tr> 93 <tr> 94 <td width="40%" align="left" valign="top">DbMpoolFile::put()��</td> 95 <td width="20%" align="center"> 96 <a accesskey="h" href="index.html">Home</a> 97 </td> 98 <td width="40%" align="right" valign="top">��DbMpoolFile::get_clear_len()</td> 99 </tr> 100 </table> 101 </div> 102 </body> 103</html> 104