2011-09-13 17:44:24 +00:00
|
|
|
|
<?xml version="1.0" encoding="UTF-8" standalone="no"?>
|
|
|
|
|
|
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
|
|
|
|
|
|
<html xmlns="http://www.w3.org/1999/xhtml">
|
|
|
|
|
|
<head>
|
|
|
|
|
|
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
|
|
|
|
|
|
<title>DB_ENV->lsn_reset()</title>
|
|
|
|
|
|
<link rel="stylesheet" href="apiReference.css" type="text/css" />
|
|
|
|
|
|
<meta name="generator" content="DocBook XSL Stylesheets V1.73.2" />
|
|
|
|
|
|
<link rel="start" href="index.html" title="Berkeley DB C API Reference" />
|
|
|
|
|
|
<link rel="up" href="env.html" title="Chapter 5. The DB_ENV Handle" />
|
|
|
|
|
|
<link rel="prev" href="envlog_verify.html" title="DB_ENV->log_verify()" />
|
|
|
|
|
|
<link rel="next" href="envopen.html" title="DB_ENV->open()" />
|
|
|
|
|
|
</head>
|
|
|
|
|
|
<body>
|
|
|
|
|
|
<div xmlns="" class="navheader">
|
|
|
|
|
|
<div class="libver">
|
2012-11-14 21:35:20 +00:00
|
|
|
|
<p>Library Version 11.2.5.3</p>
|
2011-09-13 17:44:24 +00:00
|
|
|
|
</div>
|
|
|
|
|
|
<table width="100%" summary="Navigation header">
|
|
|
|
|
|
<tr>
|
|
|
|
|
|
<th colspan="3" align="center">DB_ENV->lsn_reset()</th>
|
|
|
|
|
|
</tr>
|
|
|
|
|
|
<tr>
|
|
|
|
|
|
<td width="20%" align="left"><a accesskey="p" href="envlog_verify.html">Prev</a> </td>
|
|
|
|
|
|
<th width="60%" align="center">Chapter 5.
|
|
|
|
|
|
The DB_ENV Handle
|
|
|
|
|
|
</th>
|
|
|
|
|
|
<td width="20%" align="right"> <a accesskey="n" href="envopen.html">Next</a></td>
|
|
|
|
|
|
</tr>
|
|
|
|
|
|
</table>
|
|
|
|
|
|
<hr />
|
|
|
|
|
|
</div>
|
|
|
|
|
|
<div class="sect1" lang="en" xml:lang="en">
|
|
|
|
|
|
<div class="titlepage">
|
|
|
|
|
|
<div>
|
|
|
|
|
|
<div>
|
|
|
|
|
|
<h2 class="title" style="clear: both"><a id="envlsn_reset"></a>DB_ENV->lsn_reset()</h2>
|
|
|
|
|
|
</div>
|
|
|
|
|
|
</div>
|
|
|
|
|
|
</div>
|
|
|
|
|
|
<pre class="programlisting">#include <db.h>
|
|
|
|
|
|
|
|
|
|
|
|
int
|
|
|
|
|
|
DB_ENV->lsn_reset(DB_ENV *dbenv, const char *file, u_int32_t flags); </pre>
|
|
|
|
|
|
<p>
|
|
|
|
|
|
The <code class="methodname">DB_ENV->lsn_reset()</code> method allows database files to be moved from
|
|
|
|
|
|
one transactional database environment to another.
|
|
|
|
|
|
</p>
|
|
|
|
|
|
<p>
|
|
|
|
|
|
Database pages in transactional database environments contain
|
|
|
|
|
|
references to the environment's log files (that is, log sequence
|
|
|
|
|
|
numbers, or LSNs). Copying or moving a database file from one database
|
|
|
|
|
|
environment to another, and then modifying it, can result in data
|
|
|
|
|
|
corruption if the LSNs are not first cleared.
|
|
|
|
|
|
</p>
|
|
|
|
|
|
<p>
|
|
|
|
|
|
Note that LSNs should be reset before moving or copying the database
|
|
|
|
|
|
file into a new database environment, rather than moving or copying
|
|
|
|
|
|
the database file and then resetting the LSNs. Berkeley DB has
|
|
|
|
|
|
consistency checks that may be triggered if an application calls
|
|
|
|
|
|
<code class="methodname">DB_ENV->lsn_reset()</code> on a database in a new environment when the
|
|
|
|
|
|
database LSNs still reflect the old environment.
|
|
|
|
|
|
</p>
|
|
|
|
|
|
<p>
|
|
|
|
|
|
The <code class="methodname">DB_ENV->lsn_reset()</code> method modifies the physical file, in-place.
|
|
|
|
|
|
Applications should not reset LSNs in files that are currently in use.
|
|
|
|
|
|
</p>
|
|
|
|
|
|
<p>
|
|
|
|
|
|
The <code class="methodname">DB_ENV->lsn_reset()</code> method may be called at any time during the
|
|
|
|
|
|
life of the application.
|
|
|
|
|
|
</p>
|
|
|
|
|
|
<p>
|
|
|
|
|
|
The <code class="methodname">DB_ENV->lsn_reset()</code> <span>
|
|
|
|
|
|
<span>
|
|
|
|
|
|
method returns a non-zero error value on failure and 0 on success.
|
|
|
|
|
|
</span>
|
|
|
|
|
|
|
|
|
|
|
|
</span>
|
|
|
|
|
|
</p>
|
|
|
|
|
|
<div class="sect2" lang="en" xml:lang="en">
|
|
|
|
|
|
<div class="titlepage">
|
|
|
|
|
|
<div>
|
|
|
|
|
|
<div>
|
2012-11-14 21:35:20 +00:00
|
|
|
|
<h3 class="title"><a id="idp59643680"></a>Parameters</h3>
|
2011-09-13 17:44:24 +00:00
|
|
|
|
</div>
|
|
|
|
|
|
</div>
|
|
|
|
|
|
</div>
|
|
|
|
|
|
<div class="sect3" lang="en" xml:lang="en">
|
|
|
|
|
|
<div class="titlepage">
|
|
|
|
|
|
<div>
|
|
|
|
|
|
<div>
|
2012-11-14 21:35:20 +00:00
|
|
|
|
<h4 class="title"><a id="idp59643336"></a>file</h4>
|
2011-09-13 17:44:24 +00:00
|
|
|
|
</div>
|
|
|
|
|
|
</div>
|
|
|
|
|
|
</div>
|
|
|
|
|
|
<p>
|
|
|
|
|
|
The name of the physical file in which the LSNs are to be cleared.
|
|
|
|
|
|
</p>
|
|
|
|
|
|
</div>
|
|
|
|
|
|
<div class="sect3" lang="en" xml:lang="en">
|
|
|
|
|
|
<div class="titlepage">
|
|
|
|
|
|
<div>
|
|
|
|
|
|
<div>
|
2012-11-14 21:35:20 +00:00
|
|
|
|
<h4 class="title"><a id="idp59649776"></a>flags</h4>
|
2011-09-13 17:44:24 +00:00
|
|
|
|
</div>
|
|
|
|
|
|
</div>
|
|
|
|
|
|
</div>
|
|
|
|
|
|
<p>
|
|
|
|
|
|
The <span class="bold"><strong>flags</strong></span> parameter must be set to 0
|
|
|
|
|
|
or the following value:
|
|
|
|
|
|
</p>
|
|
|
|
|
|
<div class="itemizedlist">
|
|
|
|
|
|
<ul type="disc">
|
|
|
|
|
|
<li>
|
|
|
|
|
|
<p>
|
|
|
|
|
|
<code class="literal">DB_ENCRYPT</code>
|
|
|
|
|
|
</p>
|
|
|
|
|
|
<p>
|
|
|
|
|
|
The file contains encrypted databases.
|
|
|
|
|
|
</p>
|
|
|
|
|
|
</li>
|
|
|
|
|
|
</ul>
|
|
|
|
|
|
</div>
|
|
|
|
|
|
</div>
|
|
|
|
|
|
</div>
|
|
|
|
|
|
<div class="sect2" lang="en" xml:lang="en">
|
|
|
|
|
|
<div class="titlepage">
|
|
|
|
|
|
<div>
|
|
|
|
|
|
<div>
|
2012-11-14 21:35:20 +00:00
|
|
|
|
<h3 class="title"><a id="idp59650960"></a>Errors</h3>
|
2011-09-13 17:44:24 +00:00
|
|
|
|
</div>
|
|
|
|
|
|
</div>
|
|
|
|
|
|
</div>
|
|
|
|
|
|
<p>
|
|
|
|
|
|
The <code class="methodname">DB_ENV->lsn_reset()</code> <span>
|
|
|
|
|
|
<span>
|
|
|
|
|
|
method may fail and return one of the following non-zero errors:
|
|
|
|
|
|
</span>
|
|
|
|
|
|
|
|
|
|
|
|
</span>
|
|
|
|
|
|
</p>
|
|
|
|
|
|
<div class="sect3" lang="en" xml:lang="en">
|
|
|
|
|
|
<div class="titlepage">
|
|
|
|
|
|
<div>
|
|
|
|
|
|
<div>
|
2012-11-14 21:35:20 +00:00
|
|
|
|
<h4 class="title"><a id="idp59655856"></a>EINVAL</h4>
|
2011-09-13 17:44:24 +00:00
|
|
|
|
</div>
|
|
|
|
|
|
</div>
|
|
|
|
|
|
</div>
|
|
|
|
|
|
<p>
|
|
|
|
|
|
An invalid flag value or parameter was specified.
|
|
|
|
|
|
</p>
|
|
|
|
|
|
</div>
|
|
|
|
|
|
</div>
|
|
|
|
|
|
<div class="sect2" lang="en" xml:lang="en">
|
|
|
|
|
|
<div class="titlepage">
|
|
|
|
|
|
<div>
|
|
|
|
|
|
<div>
|
2012-11-14 21:35:20 +00:00
|
|
|
|
<h3 class="title"><a id="idp59654560"></a>Class</h3>
|
2011-09-13 17:44:24 +00:00
|
|
|
|
</div>
|
|
|
|
|
|
</div>
|
|
|
|
|
|
</div>
|
|
|
|
|
|
<p>
|
|
|
|
|
|
<a class="link" href="env.html" title="Chapter 5. The DB_ENV Handle">DB_ENV</a>
|
|
|
|
|
|
</p>
|
|
|
|
|
|
</div>
|
|
|
|
|
|
<div class="sect2" lang="en" xml:lang="en">
|
|
|
|
|
|
<div class="titlepage">
|
|
|
|
|
|
<div>
|
|
|
|
|
|
<div>
|
2012-11-14 21:35:20 +00:00
|
|
|
|
<h3 class="title"><a id="idp59656936"></a>See Also</h3>
|
2011-09-13 17:44:24 +00:00
|
|
|
|
</div>
|
|
|
|
|
|
</div>
|
|
|
|
|
|
</div>
|
|
|
|
|
|
<p>
|
|
|
|
|
|
<a class="xref" href="env.html#envlist" title="Database Environments and Related Methods">Database Environments and Related Methods</a>
|
|
|
|
|
|
</p>
|
|
|
|
|
|
</div>
|
|
|
|
|
|
</div>
|
|
|
|
|
|
<div class="navfooter">
|
|
|
|
|
|
<hr />
|
|
|
|
|
|
<table width="100%" summary="Navigation footer">
|
|
|
|
|
|
<tr>
|
|
|
|
|
|
<td width="40%" align="left"><a accesskey="p" href="envlog_verify.html">Prev</a> </td>
|
|
|
|
|
|
<td width="20%" align="center">
|
|
|
|
|
|
<a accesskey="u" href="env.html">Up</a>
|
|
|
|
|
|
</td>
|
|
|
|
|
|
<td width="40%" align="right"> <a accesskey="n" href="envopen.html">Next</a></td>
|
|
|
|
|
|
</tr>
|
|
|
|
|
|
<tr>
|
|
|
|
|
|
<td width="40%" align="left" valign="top">DB_ENV->log_verify() </td>
|
|
|
|
|
|
<td width="20%" align="center">
|
|
|
|
|
|
<a accesskey="h" href="index.html">Home</a>
|
|
|
|
|
|
</td>
|
|
|
|
|
|
<td width="40%" align="right" valign="top"> DB_ENV->open()</td>
|
|
|
|
|
|
</tr>
|
|
|
|
|
|
</table>
|
|
|
|
|
|
</div>
|
|
|
|
|
|
</body>
|
|
|
|
|
|
</html>
|
