2011-09-13 17:44:24 +00:00
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<?xml version="1.0" encoding="UTF-8" standalone="no"?>
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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
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<html xmlns="http://www.w3.org/1999/xhtml">
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<head>
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<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
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<title>txn_XXX</title>
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<link rel="stylesheet" href="gettingStarted.css" type="text/css" />
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<meta name="generator" content="DocBook XSL Stylesheets V1.73.2" />
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<link rel="start" href="index.html" title="Berkeley DB Upgrade Guide" />
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<link rel="up" href="upgrade_4_0_toc.html" title="Chapter 10. Upgrading Berkeley DB 3.3 applications to Berkeley DB 4.0" />
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<link rel="prev" href="upgrade_4_0_mp.html" title="memp_XXX" />
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<link rel="next" href="upgrade_4_0_env.html" title="db_env_set_XXX" />
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</head>
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<body>
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<div xmlns="" class="navheader">
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<div class="libver">
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2012-11-14 21:35:20 +00:00
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<p>Library Version 11.2.5.3</p>
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2011-09-13 17:44:24 +00:00
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</div>
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<table width="100%" summary="Navigation header">
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<tr>
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<th colspan="3" align="center">txn_XXX</th>
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</tr>
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<tr>
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<td width="20%" align="left"><a accesskey="p" href="upgrade_4_0_mp.html">Prev</a> </td>
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<th width="60%" align="center">Chapter 10. Upgrading Berkeley DB 3.3 applications to Berkeley DB 4.0</th>
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<td width="20%" align="right"> <a accesskey="n" href="upgrade_4_0_env.html">Next</a></td>
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</tr>
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</table>
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<hr />
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</div>
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<div class="sect1" lang="en" xml:lang="en">
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<div class="titlepage">
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<div>
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<div>
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<h2 class="title" style="clear: both"><a id="upgrade_4_0_txn"></a>txn_XXX</h2>
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</div>
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</div>
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</div>
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<p>The C API for the Berkeley DB Transaction subsystem was reworked in the 4.0
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release as follows:</p>
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<div class="informaltable">
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<table border="1" width="80%">
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<colgroup>
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<col />
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<col />
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</colgroup>
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<thead>
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<tr>
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<th>Historic functional interface</th>
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<th>Berkeley DB 4.X method</th>
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</tr>
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</thead>
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<tbody>
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<tr>
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<td>txn_abort</td>
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<td>
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<a href="../api_reference/C/txnabort.html" class="olink">DB_TXN->abort()</a>
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</td>
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</tr>
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<tr>
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<td>txn_begin</td>
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<td>
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<a href="../api_reference/C/txnbegin.html" class="olink">DB_ENV->txn_begin()</a>
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</td>
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</tr>
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<tr>
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<td>txn_checkpoint</td>
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<td>
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<a href="../api_reference/C/txncheckpoint.html" class="olink">DB_ENV->txn_checkpoint()</a>
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</td>
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</tr>
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<tr>
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<td>txn_commit</td>
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<td>
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<a href="../api_reference/C/txncommit.html" class="olink">DB_TXN->commit()</a>
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</td>
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</tr>
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<tr>
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<td>txn_discard</td>
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<td>
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<a href="../api_reference/C/txndiscard.html" class="olink">DB_TXN->discard()</a>
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</td>
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</tr>
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<tr>
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<td>txn_id</td>
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<td>
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<a href="../api_reference/C/txnid.html" class="olink">DB_TXN->id()</a>
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</td>
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</tr>
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<tr>
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<td>txn_prepare</td>
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<td>
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<a href="../api_reference/C/txnprepare.html" class="olink">DB_TXN->prepare()</a>
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</td>
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</tr>
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<tr>
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<td>txn_recover</td>
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<td>
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<a href="../api_reference/C/txnrecover.html" class="olink">DB_TXN->recover()</a>
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</td>
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</tr>
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<tr>
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<td>txn_stat</td>
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<td>
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<a href="../api_reference/C/txnstat.html" class="olink">DB_TXN->stat()</a>
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</td>
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</tr>
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</tbody>
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</table>
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</div>
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<p>Applications calling any of these functions should update their calls
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to use the enclosing <a href="../api_reference/C/env.html" class="olink">DB_ENV class</a> handle's method
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(easily done as the first argument to the existing call is the correct
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handle to use).</p>
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<p>As a special case, since applications might potentially have many calls
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to the txn_abort, txn_begin and txn_commit functions, those functions
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continue to work unchanged in the Berkeley DB 4.0 release.</p>
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<p>In addition, the <a href="../api_reference/C/txnstat.html" class="olink">DB_TXN->stat()</a> call has been changed in the 4.0
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release to take a flags argument. To leave their historic behavior
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unchanged, applications should add a final argument of 0 to any calls
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made to <a href="../api_reference/C/txnstat.html" class="olink">DB_TXN->stat()</a>.</p>
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</div>
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<table width="100%" summary="Navigation footer">
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<tr>
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<td width="40%" align="left"><a accesskey="p" href="upgrade_4_0_mp.html">Prev</a> </td>
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<td width="20%" align="center">
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<a accesskey="u" href="upgrade_4_0_toc.html">Up</a>
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</td>
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<td width="40%" align="right"> <a accesskey="n" href="upgrade_4_0_env.html">Next</a></td>
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</tr>
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<tr>
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<td width="40%" align="left" valign="top">memp_XXX </td>
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<td width="20%" align="center">
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<a accesskey="h" href="index.html">Home</a>
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<td width="40%" align="right" valign="top"> db_env_set_XXX</td>
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</tr>
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</table>
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</div>
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</body>
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