<!--$Id: lock_id.html,v 1.2 2004/03/30 01:21:42 jtownsen Exp $--> <!--Copyright 1997-2003 by Sleepycat Software, Inc.--> <!--All rights reserved.--> <!--See the file LICENSE for redistribution information.--> <html> <head> <title>Berkeley DB: DB_ENV->lock_id</title> <meta name="description" content="Berkeley DB: An embedded database programmatic toolkit."> <meta name="keywords" content="embedded,database,programmatic,toolkit,b+tree,btree,hash,hashing,transaction,transactions,locking,logging,access method,access methods,Java,C,C++"> </head> <body bgcolor=white> <a name="2"><!--meow--></a> <table width="100%"><tr valign=top> <td> <h3>DB_ENV->lock_id</h3> </td> <td align=right> <a href="../api_c/api_index.html"><img src="../images/api.gif" alt="API"></a> <a href="../ref/toc.html"><img src="../images/ref.gif" alt="Ref"></a> </td></tr></table> <hr size=1 noshade> <tt> <h3><pre> #include <db.h> <p> int DB_ENV->lock_id(DB_ENV *env, u_int32_t *idp); </pre></h3> <hr size=1 noshade> <h3>Description: DB_ENV->lock_id</h3> <p>The DB_ENV->lock_id method copies a locker ID, which is guaranteed to be unique in the specified lock table, into the memory location to which <b>idp</b> refers.</p> <p>The <a href="../api_c/lock_id_free.html">DB_ENV->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 DB_ENV->lock_id method returns a non-zero error value on failure and 0 on success. </p> <h3>Parameters</h3> <p><dl compact> <p><dt><b>idp</b><dd> The <b>idp</b> parameter references memory into which the allocated locker ID is copied. </dl> <hr size=1 noshade> <h3>Class</h3> <a href="../api_c/env_class.html">DB_ENV</a>, <a href="../api_c/lock_class.html">DB_LOCK</a> <h3>See Also</h3> <a href="../api_c/lock_list.html">Locking Subsystem and Related Methods</a> </tt> <table width="100%"><tr><td><br></td><td align=right> <a href="../api_c/api_index.html"><img src="../images/api.gif" alt="API"></a><a href="../ref/toc.html"><img src="../images/ref.gif" alt="Ref"></a> </td></tr></table> <p><font size=1><a href="../sleepycat/legal.html">Copyright (c) 1996-2003</a> <a href="http://www.sleepycat.com">Sleepycat Software, Inc.</a> - All rights reserved.</font> </body> </html>