<!--$Id: env_set_errpfx.so,v 10.34 2006/02/10 22:54:59 bostic Exp $--> <!--Copyright (c) 1997,2007 Oracle. All rights reserved.--> <!--See the file LICENSE for redistribution information.--> <html> <head> <title>Berkeley DB: DB_ENV->set_errpfx</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> <h3>DB_ENV->set_errpfx</h3> </td> <td align=right> <a href="../../db46-devel-4.6.21/api_c/api_core.html"><img src="../../db46-devel-4.6.21/images/api.gif" alt="API"></a> <a href="../../db46-devel-4.6.21/ref/toc.html"><img src="../../db46-devel-4.6.21/images/ref.gif" alt="Ref"></a></td> </tr></table> <hr size=1 noshade> <tt> <h3><pre> #include <db.h> <p> void DB_ENV->set_errpfx(DB_ENV *dbenv, const char *errpfx); <p> void DB_ENV->get_errpfx(DB_ENV *dbenv, const char **errpfxp); </pre></h3> <hr size=1 noshade> <h3>Description: DB_ENV->set_errpfx</h3> <p>Set the prefix string that appears before error messages issued by Berkeley DB.</p> <p>The <a href="../../db46-devel-4.6.21/api_c/db_set_errpfx.html">DB->set_errpfx</a> and DB_ENV->set_errpfx methods do not copy the memory to which the <b>errpfx</b> parameter refers; rather, they maintain a reference to it. Although this allows applications to modify the error message prefix at any time (without repeatedly calling the interfaces), it means the memory must be maintained until the handle is closed.</p> <p>The DB_ENV->set_errpfx method configures operations performed using the specified <a href="../../db46-devel-4.6.21/api_c/env_class.html">DB_ENV</a> handle, not all operations performed on the underlying database environment.</p> <p>The DB_ENV->set_errpfx method may be called at any time during the life of the application.</p> <h3>Parameters</h3> <dl compact> <dt><b>errpfx</b><dd>The <b>errpfx</b> parameter is the application-specified error prefix for additional error messages. </dl> <hr size=1 noshade> <h3>Description: DB_ENV->get_errpfx</h3> <p>The DB_ENV->get_errpfx method returns the error prefix.</p> <p>The DB_ENV->get_errpfx method may be called at any time during the life of the application.</p> <p>The DB_ENV->get_errpfx method returns a non-zero error value on failure and 0 on success. </p> <h3>Parameters</h3> <dl compact> <dt><b>errpfxp</b><dd>The DB_ENV->get_errpfx method returns a reference to the error prefix in <b>errpfxp</b>. </dl> <hr size=1 noshade> <h3>Class</h3> <a href="../../db46-devel-4.6.21/api_c/env_class.html">DB_ENV</a> <h3>See Also</h3> <a href="../../db46-devel-4.6.21/api_c/env_list.html">Database Environments and Related Methods</a> </tt> <table width="100%"><tr><td><br></td><td align=right> <a href="../../db46-devel-4.6.21/api_c/api_core.html"><img src="../../db46-devel-4.6.21/images/api.gif" alt="API"></a><a href="../../db46-devel-4.6.21/ref/toc.html"><img src="../../db46-devel-4.6.21/images/ref.gif" alt="Ref"></a> </td></tr></table> <p><font size=1>Copyright (c) 1996,2007 Oracle. All rights reserved.</font> </body> </html>