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->set_partition_dirs()</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="db.html" title="Chapter��2.�� The DB Handle" /> 11 <link rel="prev" href="dbset_partition.html" title="DB->set_partition()" /> 12 <link rel="next" href="dbset_priority.html" title="DB->set_priority()" /> 13 </head> 14 <body> 15 <div class="navheader"> 16 <table width="100%" summary="Navigation header"> 17 <tr> 18 <th colspan="3" align="center">DB->set_partition_dirs()</th> 19 </tr> 20 <tr> 21 <td width="20%" align="left"><a accesskey="p" href="dbset_partition.html">Prev</a>��</td> 22 <th width="60%" align="center">Chapter��2.�� 23 The DB Handle 24 </th> 25 <td width="20%" align="right">��<a accesskey="n" href="dbset_priority.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="dbset_partition_dirs"></a>DB->set_partition_dirs()</h2> 35 </div> 36 </div> 37 </div> 38 <pre class="programlisting">#include <db.h> 39 40int 41DB->set_partition_dirs(DB *db, const char **dirs); </pre> 42 <p> 43 Specify which directories the database extents should be created in or looked for. If the number 44 of directories is less than the number of partitions, the directories will be used in a round robin 45 fashion. 46 </p> 47 <p> 48 The <code class="methodname">DB->set_partition_dirs()</code> method may not be called after the 49 <a class="xref" href="dbopen.html" title="DB->open()">DB->open()</a> method is called. 50 </p> 51 <p> 52 The <code class="methodname">DB->set_partition_dirs()</code> <span> 53 <span> 54 method returns a non-zero error value on failure and 0 on success. 55 </span> 56 57 </span> 58 </p> 59 <div class="sect2" lang="en" xml:lang="en"> 60 <div class="titlepage"> 61 <div> 62 <div> 63 <h3 class="title"><a id="id1649385"></a>Parameters</h3> 64 </div> 65 </div> 66 </div> 67 <div class="sect3" lang="en" xml:lang="en"> 68 <div class="titlepage"> 69 <div> 70 <div> 71 <h4 class="title"><a id="id1649044"></a>dirs</h4> 72 </div> 73 </div> 74 </div> 75 <p> 76 The <span class="bold"><strong>dirs</strong></span> points to an array of directories that 77 will be used to create or locate the 78 database extent files specified in the <a class="xref" href="dbopen.html" title="DB->open()">DB->open()</a> 79 method call. The directories must be included in the environment 80 list specified by <a class="xref" href="envadd_data_dir.html" title="DB_ENV->add_data_dir()">DB_ENV->add_data_dir()</a>. 81 </p> 82 </div> 83 </div> 84 <div class="sect2" lang="en" xml:lang="en"> 85 <div class="titlepage"> 86 <div> 87 <div> 88 <h3 class="title"><a id="id1648945"></a>Errors</h3> 89 </div> 90 </div> 91 </div> 92 <p> 93 The <code class="methodname">DB->set_partition_dirs()</code> <span> 94 <span> 95 method may fail and return one of the following non-zero errors: 96 </span> 97 98 </span> 99 </p> 100 <div class="sect3" lang="en" xml:lang="en"> 101 <div class="titlepage"> 102 <div> 103 <div> 104 <h4 class="title"><a id="id1649145"></a>EINVAL</h4> 105 </div> 106 </div> 107 </div> 108 <p> 109 An invalid flag value or parameter was specified. 110 </p> 111 </div> 112 </div> 113 <div class="sect2" lang="en" xml:lang="en"> 114 <div class="titlepage"> 115 <div> 116 <div> 117 <h3 class="title"><a id="id1649146"></a>Class</h3> 118 </div> 119 </div> 120 </div> 121 <p> 122 <a class="link" href="db.html" title="Chapter��2.�� The DB Handle">DB</a> 123 </p> 124 </div> 125 <div class="sect2" lang="en" xml:lang="en"> 126 <div class="titlepage"> 127 <div> 128 <div> 129 <h3 class="title"><a id="id1649138"></a>See Also</h3> 130 </div> 131 </div> 132 </div> 133 <p> 134 <a class="xref" href="db.html#dblist" title="Database and Related Methods">Database and Related Methods</a> 135 </p> 136 </div> 137 </div> 138 <div class="navfooter"> 139 <hr /> 140 <table width="100%" summary="Navigation footer"> 141 <tr> 142 <td width="40%" align="left"><a accesskey="p" href="dbset_partition.html">Prev</a>��</td> 143 <td width="20%" align="center"> 144 <a accesskey="u" href="db.html">Up</a> 145 </td> 146 <td width="40%" align="right">��<a accesskey="n" href="dbset_priority.html">Next</a></td> 147 </tr> 148 <tr> 149 <td width="40%" align="left" valign="top">DB->set_partition()��</td> 150 <td width="20%" align="center"> 151 <a accesskey="h" href="index.html">Home</a> 152 </td> 153 <td width="40%" align="right" valign="top">��DB->set_priority()</td> 154 </tr> 155 </table> 156 </div> 157 </body> 158</html> 159