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>DB_TXN->id()</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��12.�� The DB_TXN Handle" /> 11 <link rel="prev" href="txnget_name.html" title="DB_TXN->get_name()" /> 12 <link rel="next" href="txnprepare.html" title="DB_TXN->prepare()" /> 13 </head> 14 <body> 15 <div class="navheader"> 16 <table width="100%" summary="Navigation header"> 17 <tr> 18 <th colspan="3" align="center">DB_TXN->id()</th> 19 </tr> 20 <tr> 21 <td width="20%" align="left"><a accesskey="p" href="txnget_name.html">Prev</a>��</td> 22 <th width="60%" align="center">Chapter��12.�� 23 The DB_TXN Handle 24 </th> 25 <td width="20%" align="right">��<a accesskey="n" href="txnprepare.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="txnid"></a>DB_TXN->id()</h2> 35 </div> 36 </div> 37 </div> 38 <pre class="programlisting">#include <db.h> 39 40u_int32_t 41DB_TXN->id(DB_TXN *tid); </pre> 42 <p> 43 The <code class="methodname">DB_TXN->id()</code> method returns the unique transaction id associated 44 with the specified transaction. Locking calls made on behalf of this 45 transaction should use the value returned from <code class="methodname">DB_TXN->id()</code> as the 46 locker parameter to the <a class="xref" href="lockget.html" title="DB_ENV->lock_get()">DB_ENV->lock_get()</a> 47 or <a class="xref" href="lockvec.html" title="DB_ENV->lock_vec()">DB_ENV->lock_vec()</a> calls. 48 </p> 49 <div class="sect2" lang="en" xml:lang="en"> 50 <div class="titlepage"> 51 <div> 52 <div> 53 <h3 class="title"><a id="id1709305"></a>Class</h3> 54 </div> 55 </div> 56 </div> 57 <p> 58 <a class="link" href="env.html" title="Chapter��5.�� The DB_ENV Handle">DB_ENV</a>, <a class="link" href="txn.html" title="Chapter��12.�� The DB_TXN Handle">DB_TXN</a> 59 </p> 60 </div> 61 <div class="sect2" lang="en" xml:lang="en"> 62 <div class="titlepage"> 63 <div> 64 <div> 65 <h3 class="title"><a id="id1709637"></a>See Also</h3> 66 </div> 67 </div> 68 </div> 69 <p> 70 <a class="xref" href="txn.html#txnlist" title="Transaction Subsystem and Related Methods">Transaction Subsystem and Related Methods</a> 71 </p> 72 </div> 73 </div> 74 <div class="navfooter"> 75 <hr /> 76 <table width="100%" summary="Navigation footer"> 77 <tr> 78 <td width="40%" align="left"><a accesskey="p" href="txnget_name.html">Prev</a>��</td> 79 <td width="20%" align="center"> 80 <a accesskey="u" href="txn.html">Up</a> 81 </td> 82 <td width="40%" align="right">��<a accesskey="n" href="txnprepare.html">Next</a></td> 83 </tr> 84 <tr> 85 <td width="40%" align="left" valign="top">DB_TXN->get_name()��</td> 86 <td width="20%" align="center"> 87 <a accesskey="h" href="index.html">Home</a> 88 </td> 89 <td width="40%" align="right" valign="top">��DB_TXN->prepare()</td> 90 </tr> 91 </table> 92 </div> 93 </body> 94</html> 95