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_MPOOLFILE->get_clear_len()</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��8.�� The DB_MPOOLFILE Handle" /> 11 <link rel="prev" href="mempfsync.html" title="DB_MPOOLFILE->sync()" /> 12 <link rel="next" href="mempget_fileid.html" title="DB_MPOOLFILE->get_fileid()" /> 13 </head> 14 <body> 15 <div class="navheader"> 16 <table width="100%" summary="Navigation header"> 17 <tr> 18 <th colspan="3" align="center">DB_MPOOLFILE->get_clear_len()</th> 19 </tr> 20 <tr> 21 <td width="20%" align="left"><a accesskey="p" href="mempfsync.html">Prev</a>��</td> 22 <th width="60%" align="center">Chapter��8.�� 23 The DB_MPOOLFILE Handle 24 </th> 25 <td width="20%" align="right">��<a accesskey="n" href="mempget_fileid.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="mempget_clear_len"></a>DB_MPOOLFILE->get_clear_len()</h2> 35 </div> 36 </div> 37 </div> 38 <pre class="programlisting">#include <db.h> 39 40int 41DB_MPOOLFILE->get_clear_len(DB_MPOOLFILE *mpf, u_int32_t *lenp); </pre> 42 <p> 43 The <code class="methodname">DB_MPOOLFILE->get_clear_len()</code> method returns the bytes to be 44 cleared. 45 </p> 46 <p> 47 The <code class="methodname">DB_MPOOLFILE->get_clear_len()</code> method may be called at any time 48 during the life of the application. 49 </p> 50 <p> 51 The <code class="methodname">DB_MPOOLFILE->get_clear_len()</code> <span> 52 <span> 53 method returns a non-zero error value on failure and 0 on success. 54 </span> 55 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="id1690612"></a>Parameters</h3> 63 </div> 64 </div> 65 </div> 66 <div class="sect3" lang="en" xml:lang="en"> 67 <div class="titlepage"> 68 <div> 69 <div> 70 <h4 class="title"><a id="id1690752"></a>lenp</h4> 71 </div> 72 </div> 73 </div> 74 <p> 75 The <code class="methodname">DB_MPOOLFILE->get_clear_len()</code> method returns the bytes to be 76 cleared in <span class="bold"><strong>lenp</strong></span>. 77 </p> 78 </div> 79 </div> 80 <div class="sect2" lang="en" xml:lang="en"> 81 <div class="titlepage"> 82 <div> 83 <div> 84 <h3 class="title"><a id="id1690726"></a>Class</h3> 85 </div> 86 </div> 87 </div> 88 <p> 89 <a class="link" href="env.html" title="Chapter��5.�� The DB_ENV Handle">DB_ENV</a>, <a class="link" href="memp.html" title="Chapter��8.�� The DB_MPOOLFILE Handle">DB_MPOOLFILE</a> 90 </p> 91 </div> 92 <div class="sect2" lang="en" xml:lang="en"> 93 <div class="titlepage"> 94 <div> 95 <div> 96 <h3 class="title"><a id="id1690747"></a>See Also</h3> 97 </div> 98 </div> 99 </div> 100 <p> 101 <a class="xref" href="memp.html#memplist" title="Memory Pools and Related Methods">Memory Pools and Related Methods</a> 102 </p> 103 </div> 104 </div> 105 <div class="navfooter"> 106 <hr /> 107 <table width="100%" summary="Navigation footer"> 108 <tr> 109 <td width="40%" align="left"><a accesskey="p" href="mempfsync.html">Prev</a>��</td> 110 <td width="20%" align="center"> 111 <a accesskey="u" href="memp.html">Up</a> 112 </td> 113 <td width="40%" align="right">��<a accesskey="n" href="mempget_fileid.html">Next</a></td> 114 </tr> 115 <tr> 116 <td width="40%" align="left" valign="top">DB_MPOOLFILE->sync()��</td> 117 <td width="20%" align="center"> 118 <a accesskey="h" href="index.html">Home</a> 119 </td> 120 <td width="40%" align="right" valign="top">��DB_MPOOLFILE->get_fileid()</td> 121 </tr> 122 </table> 123 </div> 124 </body> 125</html> 126