<!--$Id: err.so,v 1.3 2004/09/28 14:13:09 bostic Exp $--> <!--Copyright (c) 1997,2008 Oracle. All rights reserved.--> <!--See the file LICENSE for redistribution information.--> <html> <head> <title>Berkeley DB Reference Guide: Release 4.3: DB_ENV->set_errcall, DB->set_errcall</title> <meta name="description" content="Berkeley DB: An embedded database programmatic toolkit."> <meta name="keywords" content="embedded,database,programmatic,toolkit,btree,hash,hashing,transaction,transactions,locking,logging,access method,access methods,Java,C,C++"> </head> <body bgcolor=white> <table width="100%"><tr valign=top> <td><b><dl><dt>Berkeley DB Reference Guide:<dd>Upgrading Berkeley DB Applications</dl></b></td> <td align=right><a href="../upgrade.4.3/java.html"><img src="../../images/prev.gif" alt="Prev"></a><a href="../toc.html"><img src="../../images/ref.gif" alt="Ref"></a><a href="../upgrade.4.3/cput.html"><img src="../../images/next.gif" alt="Next"></a> </td></tr></table> <p align=center><b>Release 4.3: DB_ENV->set_errcall, DB->set_errcall</b></p> <p>The signature of the error callback passed to the <a href="../../api_c/env_set_errcall.html">DB_ENV->set_errcall</a> and <a href="../../api_c/db_set_errcall.html">DB->set_errcall</a> methods has changed in the 4.3 release. For example, if you previously had a function such as this:</p> <blockquote><pre>void handle_db_error(const char *prefix, char *message);</pre></blockquote> <p>it should be changed to this:</p> <blockquote><pre>void handle_db_error(const DB_ENV *dbenv, const char *prefix, const char *message);</pre></blockquote> <p>This change adds the <a href="../../api_c/env_class.html">DB_ENV</a> handle to provide database environment context for the callback function, and incidentally makes it clear the message parameter cannot be changed by the callback.</p> <table width="100%"><tr><td><br></td><td align=right><a href="../upgrade.4.3/java.html"><img src="../../images/prev.gif" alt="Prev"></a><a href="../toc.html"><img src="../../images/ref.gif" alt="Ref"></a><a href="../upgrade.4.3/cput.html"><img src="../../images/next.gif" alt="Next"></a> </td></tr></table> <p><font size=1>Copyright (c) 1996,2008 Oracle. All rights reserved.</font> </body> </html>