mirror of
https://github.com/berkeleydb/libdb.git
synced 2024-11-17 01:26:25 +00:00
133 lines
5 KiB
HTML
133 lines
5 KiB
HTML
<?xml version="1.0" encoding="UTF-8" standalone="no"?>
|
||
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
|
||
<html xmlns="http://www.w3.org/1999/xhtml">
|
||
<head>
|
||
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
|
||
<title>DbEnv::lock_id()</title>
|
||
<link rel="stylesheet" href="apiReference.css" type="text/css" />
|
||
<meta name="generator" content="DocBook XSL Stylesheets V1.73.2" />
|
||
<link rel="start" href="index.html" title="Berkeley DB C++ API Reference" />
|
||
<link rel="up" href="lock.html" title="Chapter 7. The DbLock Handle" />
|
||
<link rel="prev" href="lockget.html" title="DbEnv::lock_get()" />
|
||
<link rel="next" href="lockid_free.html" title="DbEnv::lock_id_free()" />
|
||
</head>
|
||
<body>
|
||
<div xmlns="" class="navheader">
|
||
<div class="libver">
|
||
<p>Library Version 11.2.5.2</p>
|
||
</div>
|
||
<table width="100%" summary="Navigation header">
|
||
<tr>
|
||
<th colspan="3" align="center">DbEnv::lock_id()</th>
|
||
</tr>
|
||
<tr>
|
||
<td width="20%" align="left"><a accesskey="p" href="lockget.html">Prev</a> </td>
|
||
<th width="60%" align="center">Chapter 7.
|
||
The DbLock Handle
|
||
</th>
|
||
<td width="20%" align="right"> <a accesskey="n" href="lockid_free.html">Next</a></td>
|
||
</tr>
|
||
</table>
|
||
<hr />
|
||
</div>
|
||
<div class="sect1" lang="en" xml:lang="en">
|
||
<div class="titlepage">
|
||
<div>
|
||
<div>
|
||
<h2 class="title" style="clear: both"><a id="lockid"></a>DbEnv::lock_id()</h2>
|
||
</div>
|
||
</div>
|
||
</div>
|
||
<pre class="programlisting">#include <db_cxx.h>
|
||
|
||
int
|
||
DbEnv::lock_id(u_int32_t *idp);</pre>
|
||
<p>
|
||
The <code class="methodname">DbEnv::lock_id()</code> method copies a locker ID, which is guaranteed
|
||
to be unique in the environment's lock table, into the memory location to
|
||
which <span class="bold"><strong>idp</strong></span> refers.
|
||
</p>
|
||
<p>
|
||
The <a class="xref" href="lockid_free.html" title="DbEnv::lock_id_free()">DbEnv::lock_id_free()</a>
|
||
method should be called to return the locker ID to the Berkeley DB
|
||
library when it is no longer needed.
|
||
</p>
|
||
<p>
|
||
The <code class="methodname">DbEnv::lock_id()</code> <span>
|
||
|
||
<span>
|
||
method either returns a non-zero error value or throws an
|
||
exception that encapsulates a non-zero error value on
|
||
failure, and returns 0 on success.
|
||
</span>
|
||
</span>
|
||
</p>
|
||
<div class="sect2" lang="en" xml:lang="en">
|
||
<div class="titlepage">
|
||
<div>
|
||
<div>
|
||
<h3 class="title"><a id="id3634255"></a>Parameters</h3>
|
||
</div>
|
||
</div>
|
||
</div>
|
||
<div class="sect3" lang="en" xml:lang="en">
|
||
<div class="titlepage">
|
||
<div>
|
||
<div>
|
||
<h4 class="title"><a id="id3633736"></a>idp</h4>
|
||
</div>
|
||
</div>
|
||
</div>
|
||
<p>
|
||
The <span class="bold"><strong>idp</strong></span> parameter references memory
|
||
into which the allocated locker ID is copied.
|
||
</p>
|
||
</div>
|
||
</div>
|
||
<div class="sect2" lang="en" xml:lang="en">
|
||
<div class="titlepage">
|
||
<div>
|
||
<div>
|
||
<h3 class="title"><a id="id3634312"></a>Class</h3>
|
||
</div>
|
||
</div>
|
||
</div>
|
||
<p>
|
||
<a class="link" href="env.html" title="Chapter 5. The DbEnv Handle">DbEnv</a>,
|
||
<a class="link" href="lock.html" title="Chapter 7. The DbLock Handle">DbLock</a>
|
||
</p>
|
||
</div>
|
||
<div class="sect2" lang="en" xml:lang="en">
|
||
<div class="titlepage">
|
||
<div>
|
||
<div>
|
||
<h3 class="title"><a id="id3634186"></a>See Also</h3>
|
||
</div>
|
||
</div>
|
||
</div>
|
||
<p>
|
||
<a class="xref" href="lock.html#locklist" title="Locking Subsystem and Related Methods">Locking Subsystem and Related Methods</a>
|
||
</p>
|
||
</div>
|
||
</div>
|
||
<div class="navfooter">
|
||
<hr />
|
||
<table width="100%" summary="Navigation footer">
|
||
<tr>
|
||
<td width="40%" align="left"><a accesskey="p" href="lockget.html">Prev</a> </td>
|
||
<td width="20%" align="center">
|
||
<a accesskey="u" href="lock.html">Up</a>
|
||
</td>
|
||
<td width="40%" align="right"> <a accesskey="n" href="lockid_free.html">Next</a></td>
|
||
</tr>
|
||
<tr>
|
||
<td width="40%" align="left" valign="top">DbEnv::lock_get() </td>
|
||
<td width="20%" align="center">
|
||
<a accesskey="h" href="index.html">Home</a>
|
||
</td>
|
||
<td width="40%" align="right" valign="top"> DbEnv::lock_id_free()</td>
|
||
</tr>
|
||
</table>
|
||
</div>
|
||
</body>
|
||
</html>
|