2011-09-13 17:44:24 +00:00
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<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
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<title>DB_ENV->lock_id()</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="lock.html" title="Chapter 6. The DB_LOCK Handle" />
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<link rel="prev" href="lockget.html" title="DB_ENV->lock_get()" />
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<link rel="next" href="lockid_free.html" title="DB_ENV->lock_id_free()" />
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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">DB_ENV->lock_id()</th>
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</tr>
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<tr>
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<td width="20%" align="left"><a accesskey="p" href="lockget.html">Prev</a> </td>
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<th width="60%" align="center">Chapter 6.
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The DB_LOCK Handle
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</th>
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<td width="20%" align="right"> <a accesskey="n" href="lockid_free.html">Next</a></td>
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<hr />
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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="lockid"></a>DB_ENV->lock_id()</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.h>
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int
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DB_ENV->lock_id(DB_ENV *env, u_int32_t *idp); </pre>
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<p>
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The <code class="methodname">DB_ENV->lock_id()</code> method copies a locker ID, which is guaranteed
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to be unique in the environment's lock table, into the memory location to
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which <span class="bold"><strong>idp</strong></span> refers.
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</p>
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<p>
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The <a class="xref" href="lockid_free.html" title="DB_ENV->lock_id_free()">DB_ENV->lock_id_free()</a>
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method should be called to return the locker ID to the Berkeley DB
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library when it is no longer needed.
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</p>
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<p>
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The <code class="methodname">DB_ENV->lock_id()</code> <span>
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<span>
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method returns a non-zero error value on failure and 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="id3723540"></a>Parameters</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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<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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2011-12-20 00:07:10 +00:00
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<h4 class="title"><a id="id3724013"></a>idp</h4>
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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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The <span class="bold"><strong>idp</strong></span> parameter references memory
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into which the allocated locker ID is copied.
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</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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2011-12-20 00:07:10 +00:00
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<h3 class="title"><a id="id3724029"></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 DB_ENV Handle">DB_ENV</a>,
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<a class="link" href="lock.html" title="Chapter 6. The DB_LOCK Handle">DB_LOCK</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="id3723975"></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="lock.html#locklist" title="Locking Subsystem and Related Methods">Locking Subsystem and Related Methods</a>
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</p>
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</div>
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<tr>
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<td width="40%" align="left"><a accesskey="p" href="lockget.html">Prev</a> </td>
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<td width="20%" align="center">
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<a accesskey="u" href="lock.html">Up</a>
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</td>
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<td width="40%" align="right"> <a accesskey="n" href="lockid_free.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">DB_ENV->lock_get() </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"> DB_ENV->lock_id_free()</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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