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138 lines
5.5 KiB
HTML
138 lines
5.5 KiB
HTML
<?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>begin_txn</title>
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<link rel="stylesheet" href="apiReference.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 C++ Standard Template Library API Reference" />
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<link rel="up" href="dbstl_global_functions.html" title="Chapter 1. Dbstl Global Public Functions" />
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<link rel="prev" href="stldbstl_global_functionsclose_all_db_envs.html" title="close_all_db_envs" />
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<link rel="next" href="stldbstl_global_functionscommit_txn.html" title="commit_txn" />
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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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<p>Library Version 11.2.5.2</p>
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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">begin_txn</th>
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</tr>
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<tr>
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<td width="20%" align="left"><a accesskey="p" href="stldbstl_global_functionsclose_all_db_envs.html">Prev</a> </td>
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<th width="60%" align="center">Chapter 1.
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Dbstl Global Public Functions </th>
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<td width="20%" align="right"> <a accesskey="n" href="stldbstl_global_functionscommit_txn.html">Next</a></td>
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</tr>
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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="stldbstl_global_functionsbegin_txn"></a>begin_txn</h2>
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</div>
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</div>
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</div>
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<div class="sect2" 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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<h3 class="title"><a id="stldbstl_global_functionsbegin_txn_details"></a>Function Details</h3>
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</div>
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</div>
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</div>
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<pre class="programlisting">
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DbTxn* begin_txn(u_int32_t flags,
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DbEnv *env)
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</pre>
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<p>Begin a new transaction from the specified environment "env". </p>
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<p>This function is called by dbstl user to begin an external transaction. The "flags" parameter is passed to DbEnv::txn_begin(). If a transaction created from the same database environment already exists and is unresolved, the new transaction is started as a child transaction of that transaction, and thus you can't specify the parent transaction. </p>
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<div class="sect3" 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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<h4 class="title"><a id="id3592869"></a>Parameters</h4>
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</div>
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</div>
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</div>
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<div class="sect4" 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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<h5 class="title"><a id="id3593007"></a>flags</h5>
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</div>
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</div>
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</div>
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<p>It is set to DbEnv::txn_begin() function. </p>
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</div>
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<div class="sect4" 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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<h5 class="title"><a id="id3593038"></a>env</h5>
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</div>
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</div>
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</div>
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<p>The environment to start a transaction from. </p>
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</div>
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</div>
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<div class="sect3" 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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<h4 class="title"><a id="id3592991"></a>Return Value</h4>
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</div>
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</div>
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</div>
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<p>The newly created transaction. </p>
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</div>
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</div>
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<div class="sect2" 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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<h3 class="title"><a id="id3592973"></a>Group: Transaction control global functions.</h3>
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</div>
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</div>
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</div>
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<p>dbstl transaction API.</p>
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<p>You should call these API rather than DB C/C++ API to use Berkeley DB transaction features. </p>
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</div>
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<div class="sect2" 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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<h3 class="title"><a id="id3592952"></a>Class</h3>
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</div>
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</div>
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</div>
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<p>
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<a class="link" href="dbstl_global_functions.html" title="Chapter 1. Dbstl Global Public Functions">dbstl_global_functions</a>
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</p>
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</div>
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</div>
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<div class="navfooter">
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<hr />
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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="stldbstl_global_functionsclose_all_db_envs.html">Prev</a> </td>
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<td width="20%" align="center">
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<a accesskey="u" href="dbstl_global_functions.html">Up</a>
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</td>
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<td width="40%" align="right"> <a accesskey="n" href="stldbstl_global_functionscommit_txn.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">close_all_db_envs </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>
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<td width="40%" align="right" valign="top"> commit_txn</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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</html>
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