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>DbTxn::abort()</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="txn.html" title="Chapter 13. The DbTxn Handle" /> 11 <link rel="prev" href="envset_tx_timestamp.html" title="DbEnv::set_tx_timestamp()" /> 12 <link rel="next" href="txnbegin.html" title="DbEnv::txn_begin()" /> 13 </head> 14 <body> 15 <div class="navheader"> 16 <table width="100%" summary="Navigation header"> 17 <tr> 18 <th colspan="3" align="center">DbTxn::abort()</th> 19 </tr> 20 <tr> 21 <td width="20%" align="left"><a accesskey="p" href="envset_tx_timestamp.html">Prev</a> </td> 22 <th width="60%" align="center">Chapter 13. 23 The DbTxn Handle 24 </th> 25 <td width="20%" align="right"> <a accesskey="n" href="txnbegin.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="txnabort"></a>DbTxn::abort()</h2> 35 </div> 36 </div> 37 </div> 38 <pre class="programlisting">#include <db_cxx.h> 39 40int 41DbTxn::abort();</pre> 42 <p> 43 The <code class="methodname">DbTxn::abort()</code> method causes an abnormal termination of the 44 transaction. The log is played backward, and any necessary undo 45 operations are done through the <span class="bold"><strong>tx_recover</strong></span> 46 function specified to <a class="xref" href="envset_app_dispatch.html" title="DbEnv::set_app_dispatch()">DbEnv::set_app_dispatch()</a>. 47 Before <code class="methodname">DbTxn::abort()</code> returns, any locks held by the transaction 48 will have been released. 49 </p> 50 <p> 51 In the case of nested transactions, aborting a parent transaction 52 causes all children (unresolved or not) of the parent transaction to 53 be aborted. 54 </p> 55 <p> 56 All cursors opened within the transaction must be closed before the 57 transaction is aborted. 58 </p> 59 <p> 60 After <code class="methodname">DbTxn::abort()</code> has been called, regardless of its return, the 61 <a class="link" href="txn.html" title="Chapter 13. The DbTxn Handle">DbTxn</a> handle may not be 62 accessed again. 63 </p> 64 <p> 65 The <code class="methodname">DbTxn::abort()</code> <span> 66 67 <span> 68 method either returns a non-zero error value or throws an 69 exception that encapsulates a non-zero error value on 70 failure, and returns 0 on success. 71 </span> 72 </span> 73 </p> 74 <div class="sect2" lang="en" xml:lang="en"> 75 <div class="titlepage"> 76 <div> 77 <div> 78 <h3 class="title"><a id="id1713228"></a>Class</h3> 79 </div> 80 </div> 81 </div> 82 <p> 83 <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> 84 </p> 85 </div> 86 <div class="sect2" lang="en" xml:lang="en"> 87 <div class="titlepage"> 88 <div> 89 <div> 90 <h3 class="title"><a id="id1713355"></a>See Also</h3> 91 </div> 92 </div> 93 </div> 94 <p> 95 <a class="xref" href="txn.html#txnlist" title="Transaction Subsystem and Related Methods">Transaction Subsystem and Related Methods</a> 96 </p> 97 </div> 98 </div> 99 <div class="navfooter"> 100 <hr /> 101 <table width="100%" summary="Navigation footer"> 102 <tr> 103 <td width="40%" align="left"><a accesskey="p" href="envset_tx_timestamp.html">Prev</a> </td> 104 <td width="20%" align="center"> 105 <a accesskey="u" href="txn.html">Up</a> 106 </td> 107 <td width="40%" align="right"> <a accesskey="n" href="txnbegin.html">Next</a></td> 108 </tr> 109 <tr> 110 <td width="40%" align="left" valign="top">DbEnv::set_tx_timestamp() </td> 111 <td width="20%" align="center"> 112 <a accesskey="h" href="index.html">Home</a> 113 </td> 114 <td width="40%" align="right" valign="top"> DbEnv::txn_begin()</td> 115 </tr> 116 </table> 117 </div> 118 </body> 119</html> 120