2011-09-13 17:44:24 +00:00
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<title>DbTxn::abort()</title>
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<link rel="start" href="index.html" title="Berkeley DB C++ API Reference" />
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<link rel="up" href="txn.html" title="Chapter 13. The DbTxn Handle" />
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<link rel="prev" href="txnstat_print.html" title="DbEnv::txn_stat_print()" />
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<link rel="next" href="txncommit.html" title="DbTxn::commit()" />
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<p>Library Version 11.2.5.2</p>
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<table width="100%" summary="Navigation header">
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<tr>
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<th colspan="3" align="center">DbTxn::abort()</th>
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</tr>
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<tr>
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<td width="20%" align="left"><a accesskey="p" href="txnstat_print.html">Prev</a> </td>
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<th width="60%" align="center">Chapter 13.
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The DbTxn Handle
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</th>
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<td width="20%" align="right"> <a accesskey="n" href="txncommit.html">Next</a></td>
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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="txnabort"></a>DbTxn::abort()</h2>
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</div>
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</div>
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</div>
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<pre class="programlisting">#include <db_cxx.h>
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int
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DbTxn::abort();</pre>
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<p>
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The <code class="methodname">DbTxn::abort()</code> method causes an abnormal termination of the
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transaction. The log is played backward, and any necessary undo
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operations are done through the <span class="bold"><strong>tx_recover</strong></span>
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function specified to <a class="xref" href="envset_app_dispatch.html" title="DbEnv::set_app_dispatch()">DbEnv::set_app_dispatch()</a>.
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Before <code class="methodname">DbTxn::abort()</code> returns, any locks held by the transaction
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will have been released.
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</p>
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<p>
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In the case of nested transactions, aborting a parent transaction
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causes all children (unresolved or not) of the parent transaction to
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be aborted.
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</p>
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<p>
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All cursors opened within the transaction must be closed before the
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transaction is aborted.
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If they are not closed, they will be closed by
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this function. If a close operation fails, the rest
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of the cursors are closed, and the database environment is set to the panic state.
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</p>
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<p>
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After <code class="methodname">DbTxn::abort()</code> has been called, regardless of its return, the
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<a class="link" href="txn.html" title="Chapter 13. The DbTxn Handle">DbTxn</a> handle may not be
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accessed again.
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</p>
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<p>
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The <code class="methodname">DbTxn::abort()</code> <span>
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<span>
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method either returns a non-zero error value or throws an
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exception that encapsulates a non-zero error value on
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failure, and returns 0 on success.
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</span>
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</span>
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</p>
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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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2011-12-20 00:07:10 +00:00
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<h3 class="title"><a id="id3654089"></a>Class</h3>
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2011-09-13 17:44:24 +00:00
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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="env.html" title="Chapter 5. The DbEnv Handle">DbEnv</a>, <a class="link" href="txn.html" title="Chapter 13. The DbTxn Handle">DbTxn</a>
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</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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2011-12-20 00:07:10 +00:00
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<h3 class="title"><a id="id3654107"></a>See Also</h3>
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2011-09-13 17:44:24 +00:00
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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="xref" href="txn.html#txnlist" title="Transaction Subsystem and Related Methods">Transaction Subsystem and Related Methods</a>
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</p>
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<td width="40%" align="left"><a accesskey="p" href="txnstat_print.html">Prev</a> </td>
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<td width="20%" align="center">
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<a accesskey="u" href="txn.html">Up</a>
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</td>
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<td width="40%" align="right"> <a accesskey="n" href="txncommit.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">DbEnv::txn_stat_print() </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"> DbTxn::commit()</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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