mirror of
https://github.com/MariaDB/server.git
synced 2025-11-09 11:41:36 +03:00
75 lines
3.7 KiB
HTML
75 lines
3.7 KiB
HTML
<!--$Id: env_set_error_stream.so,v 10.13 1999/12/20 08:52:33 bostic Exp $-->
|
|
<!--Copyright 1997, 1998, 1999, 2000 by Sleepycat Software, Inc.-->
|
|
<!--All rights reserved.-->
|
|
<html>
|
|
<head>
|
|
<title>Berkeley DB: DbEnv::set_error_stream</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><tr valign=top>
|
|
<td>
|
|
<h1>DbEnv::set_error_stream</h1>
|
|
</td>
|
|
<td width="1%">
|
|
<a href="../api_cxx/cxx_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_cxx.h>
|
|
<p>
|
|
void DbEnv::set_error_stream(class ostream*);
|
|
</pre></h3>
|
|
<h1>Description</h1>
|
|
<p>When an error occurs in the Berkeley DB library, an exception is thrown or an
|
|
<b>errno</b> value is returned by the method. In some cases,
|
|
however, the <b>errno</b> value may be insufficient to completely
|
|
describe the cause of the error, especially during initial application
|
|
debugging.
|
|
<p>The DbEnv::set_error_stream method is used to enhance the mechanism for
|
|
reporting error messages to the application by setting the C++ ostream
|
|
used for displaying additional Berkeley DB error messages. In some cases,
|
|
when an error occurs, Berkeley DB will output an additional error message to
|
|
the specified stream.
|
|
<p>The error message will consist of the prefix string and a colon
|
|
("<b>:</b>") (if a prefix string was previously specified using
|
|
<a href="../api_cxx/env_set_errpfx.html">DbEnv::set_errpfx</a>), an error string, and a trailing
|
|
<newline> character.
|
|
<p>Alternatively, you can use the <a href="../api_cxx/env_set_errfile.html">DbEnv::set_errfile</a> method to display
|
|
the additional information via a C library FILE *, or the
|
|
<a href="../api_cxx/env_set_errcall.html">DbEnv::set_errcall</a> method 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>This error logging enhancement does not slow performance or significantly
|
|
increase application size, and may be run during normal operation as well
|
|
as during application debugging.
|
|
<h3>Class</h3>
|
|
<a href="../api_cxx/dbenv_class.html">DbEnv</a>
|
|
<h1>See Also</h1>
|
|
<a href="../api_cxx/env_close.html">DbEnv::close</a>,
|
|
<a href="../api_cxx/env_open.html">DbEnv::open</a>,
|
|
<a href="../api_cxx/env_remove.html">DbEnv::remove</a>,
|
|
<a href="../api_cxx/db_err.html">DbEnv::err</a>,
|
|
<a href="../api_cxx/env_strerror.html">DbEnv::strerror</a>,
|
|
<a href="../api_cxx/env_version.html">DbEnv::version</a>,
|
|
<a href="../api_cxx/env_set_cachesize.html">DbEnv::set_cachesize</a>,
|
|
<a href="../api_cxx/env_set_errcall.html">DbEnv::set_errcall</a>,
|
|
<a href="../api_cxx/env_set_errfile.html">DbEnv::set_errfile</a>,
|
|
<a href="../api_cxx/env_set_error_stream.html">DbEnv::set_error_stream</a>,
|
|
<a href="../api_cxx/env_set_errpfx.html">DbEnv::set_errpfx</a>,
|
|
<a href="../api_cxx/env_set_flags.html">DbEnv::set_flags</a>,
|
|
<a href="../api_cxx/env_set_mutexlocks.html">DbEnv::set_mutexlocks</a>,
|
|
<a href="../api_cxx/env_set_paniccall.html">DbEnv::set_paniccall</a>,
|
|
and
|
|
<a href="../api_cxx/env_set_verbose.html">DbEnv::set_verbose</a>.
|
|
</tt>
|
|
<table><tr><td><br></td><td width="1%">
|
|
<a href="../api_cxx/cxx_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="http://www.sleepycat.com">Copyright Sleepycat Software</a></font>
|
|
</body>
|
|
</html>
|