<!--$Id: db_set_msg_stream.so,v 1.1 2004/07/14 19:30:39 bostic Exp $--> <!--$Id: env_set_msg_stream.so,v 10.4 2004/08/13 03:38:57 bostic Exp $--> <!--Copyright 1997-2004 by Sleepycat Software, Inc.--> <!--All rights reserved.--> <!--See the file LICENSE for redistribution information.--> <html> <head> <title>Berkeley DB: Db::set_message_stream</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::set_message_stream</h3> </td> <td align=right> <a href="../../db43-devel-4.3.21/api_cxx/api_core.html"><img src="../../db43-4.3.21/images/api.gif" alt="API"></a> <a href="../../db43-devel-4.3.21/ref/toc.html"><img src="../../db43-4.3.21/images/ref.gif" alt="Ref"></a></td> </tr></table> <hr size=1 noshade> <tt> <h3><pre> #include <db_cxx.h> <p> void Db::set_message_stream(class ostream*); </pre></h3> <hr size=1 noshade> <h3>Description: Db::set_message_stream</h3> <p>There are interfaces in the Berkeley DB library which either directly output informational messages or statistical information, or configure the library to output such messages when performing other operations, for example, <a href="../../db43-devel-4.3.21/api_cxx/env_set_verbose.html">DbEnv::set_verbose</a> and <a href="../../db43-devel-4.3.21/api_cxx/env_stat.html">DbEnv::stat_print</a>.</p> <p>The <a href="../../db43-devel-4.3.21/api_cxx/env_set_msg_stream.html">DbEnv::set_message_stream</a> and Db::set_message_stream methods are used to display these messages for the application. In this case, the message will include a trailing <newline> character.</p> <p>Setting <b>stream</b> to NULL unconfigures the interface.</p> <p>Alternatively, you can use the <a href="../../db43-devel-4.3.21/api_cxx/env_set_msgfile.html">DbEnv::set_msgfile</a> and <a href="../../db43-devel-4.3.21/api_cxx/db_set_msgfile.html">Db::set_msgfile</a> methods to display the messages via a C library FILE *, or the <a href="../../db43-devel-4.3.21/api_cxx/env_set_msgcall.html">DbEnv::set_msgcall</a> and <a href="../../db43-devel-4.3.21/api_cxx/db_set_msgcall.html">Db::set_msgcall</a> methods to capture the additional error information in a way that does not use either output streams or C library FILE *'s. You should not mix these approaches.</p> <p>For <a href="../../db43-devel-4.3.21/api_cxx/db_class.html">Db</a> handles opened inside of Berkeley DB environments, calling the Db::set_message_stream method affects the entire environment and is equivalent to calling the <a href="../../db43-devel-4.3.21/api_cxx/env_set_msg_stream.html">DbEnv::set_message_stream</a> method.</p> <h3>Parameters</h3> <dl compact> <dt><b>stream</b><dd>The <b>stream</b> parameter is the application-specified output stream to be used for additional message information. </dl> <hr size=1 noshade> <h3>Class</h3> <a href="../../db43-devel-4.3.21/api_cxx/db_class.html">Db</a> <h3>See Also</h3> <a href="../../db43-devel-4.3.21/api_cxx/db_list.html">Databases and Related Methods</a> </tt> <table width="100%"><tr><td><br></td><td align=right> <a href="../../db43-devel-4.3.21/api_cxx/api_core.html"><img src="../../db43-4.3.21/images/api.gif" alt="API"></a><a href="../../db43-devel-4.3.21/ref/toc.html"><img src="../../db43-4.3.21/images/ref.gif" alt="Ref"></a> </td></tr></table> <p><font size=1><a href="../../db43-devel-4.3.21/sleepycat/legal.html">Copyright (c) 1996-2004</a> <a href="http://www.sleepycat.com">Sleepycat Software, Inc.</a> - All rights reserved.</font> </body> </html>
