mirror of
https://github.com/berkeleydb/libdb.git
synced 2024-11-17 01:26:25 +00:00
157 lines
6.9 KiB
HTML
157 lines
6.9 KiB
HTML
<?xml version="1.0" encoding="UTF-8" standalone="no"?>
|
||
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
|
||
<html xmlns="http://www.w3.org/1999/xhtml">
|
||
<head>
|
||
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
|
||
<title>Db::set_message_stream()</title>
|
||
<link rel="stylesheet" href="apiReference.css" type="text/css" />
|
||
<meta name="generator" content="DocBook XSL Stylesheets V1.73.2" />
|
||
<link rel="start" href="index.html" title="Berkeley DB C++ API Reference" />
|
||
<link rel="up" href="db.html" title="Chapter 2. The Db Handle" />
|
||
<link rel="prev" href="dbset_lorder.html" title="Db::set_lorder()" />
|
||
<link rel="next" href="dbset_msgcall.html" title="Db::set_msgcall()" />
|
||
</head>
|
||
<body>
|
||
<div xmlns="" class="navheader">
|
||
<div class="libver">
|
||
<p>Library Version 11.2.5.2</p>
|
||
</div>
|
||
<table width="100%" summary="Navigation header">
|
||
<tr>
|
||
<th colspan="3" align="center">Db::set_message_stream()</th>
|
||
</tr>
|
||
<tr>
|
||
<td width="20%" align="left"><a accesskey="p" href="dbset_lorder.html">Prev</a> </td>
|
||
<th width="60%" align="center">Chapter 2.
|
||
The Db Handle
|
||
</th>
|
||
<td width="20%" align="right"> <a accesskey="n" href="dbset_msgcall.html">Next</a></td>
|
||
</tr>
|
||
</table>
|
||
<hr />
|
||
</div>
|
||
<div class="sect1" lang="en" xml:lang="en">
|
||
<div class="titlepage">
|
||
<div>
|
||
<div>
|
||
<h2 class="title" style="clear: both"><a id="dbset_message_stream"></a>Db::set_message_stream()</h2>
|
||
</div>
|
||
</div>
|
||
</div>
|
||
<pre class="programlisting">#include <db_cxx.h>
|
||
|
||
void Db::set_message_stream(class ostream*); </pre>
|
||
<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, the
|
||
<a class="xref" href="envset_verbose.html" title="DbEnv::set_verbose()">DbEnv::set_verbose()</a>
|
||
and <a class="xref" href="envstat.html" title="DbEnv::stat_print()">DbEnv::stat_print()</a>
|
||
methods.
|
||
</p>
|
||
<p>
|
||
The <a class="xref" href="envset_message_stream.html" title="DbEnv::set_message_stream()">DbEnv::set_message_stream()</a>
|
||
and <code class="methodname">Db::set_message_stream()</code> methods are used
|
||
to display these messages for the application. In this case, the message will include a
|
||
trailing <code class="literal"><newline></code> character.
|
||
</p>
|
||
<p>
|
||
Setting <span class="bold"><strong>stream</strong></span> to NULL unconfigures the interface.
|
||
</p>
|
||
<p>
|
||
Alternatively, you can use the
|
||
<a class="xref" href="envset_msgfile.html" title="DbEnv::set_msgfile()">DbEnv::set_msgfile()</a> or
|
||
<a class="xref" href="dbset_msgfile.html" title="Db::set_msgfile()">Db::set_msgfile()</a> methods
|
||
to display the additional information via a C Library <code class="literal">FILE *</code>,
|
||
or the <a class="xref" href="envset_msgcall.html" title="DbEnv::set_msgcall()">DbEnv::set_msgcall()</a>
|
||
and <a class="xref" href="dbset_msgcall.html" title="Db::set_msgcall()">Db::set_msgcall()</a>
|
||
methods to capture the additional error information in a way that does not use either
|
||
output streams or C Library <code class="literal">FILE *</code>'s.
|
||
You should not mix these approaches.
|
||
</p>
|
||
<p>
|
||
For <a class="link" href="db.html" title="Chapter 2. The Db Handle">Db</a> handles opened inside of Berkeley DB
|
||
environments, calling the <code class="methodname">Db::set_message_stream()</code> method
|
||
affects the entire environment and is equivalent to calling the
|
||
<a class="xref" href="envset_message_stream.html" title="DbEnv::set_message_stream()">DbEnv::set_message_stream()</a> method.
|
||
</p>
|
||
<p>
|
||
The <code class="methodname">Db::set_message_stream()</code> method configures
|
||
operations performed using the specified
|
||
<a class="link" href="db.html" title="Chapter 2. The Db Handle">Db</a>
|
||
handle, not all operations performed on the underlying database.
|
||
</p>
|
||
<p>
|
||
The <code class="methodname">Db::set_message_stream()</code> method may be called at any time during the
|
||
life of the application.
|
||
</p>
|
||
<div class="sect2" lang="en" xml:lang="en">
|
||
<div class="titlepage">
|
||
<div>
|
||
<div>
|
||
<h3 class="title"><a id="id3578437"></a>Parameters</h3>
|
||
</div>
|
||
</div>
|
||
</div>
|
||
<div class="sect3" lang="en" xml:lang="en">
|
||
<div class="titlepage">
|
||
<div>
|
||
<div>
|
||
<h4 class="title"><a id="id3578440"></a>stream</h4>
|
||
</div>
|
||
</div>
|
||
</div>
|
||
<p>
|
||
The <span class="bold"><strong>stream</strong></span> parameter is the
|
||
application-specified output stream to be used for additional message
|
||
information.
|
||
</p>
|
||
</div>
|
||
</div>
|
||
<div class="sect2" lang="en" xml:lang="en">
|
||
<div class="titlepage">
|
||
<div>
|
||
<div>
|
||
<h3 class="title"><a id="id3578181"></a>Class</h3>
|
||
</div>
|
||
</div>
|
||
</div>
|
||
<p>
|
||
<a class="link" href="db.html" title="Chapter 2. The Db Handle">Db</a>
|
||
</p>
|
||
</div>
|
||
<div class="sect2" lang="en" xml:lang="en">
|
||
<div class="titlepage">
|
||
<div>
|
||
<div>
|
||
<h3 class="title"><a id="id3578121"></a>See Also</h3>
|
||
</div>
|
||
</div>
|
||
</div>
|
||
<p>
|
||
<a class="xref" href="db.html#dblist" title="Database and Related Methods">Database and Related Methods</a>
|
||
</p>
|
||
</div>
|
||
</div>
|
||
<div class="navfooter">
|
||
<hr />
|
||
<table width="100%" summary="Navigation footer">
|
||
<tr>
|
||
<td width="40%" align="left"><a accesskey="p" href="dbset_lorder.html">Prev</a> </td>
|
||
<td width="20%" align="center">
|
||
<a accesskey="u" href="db.html">Up</a>
|
||
</td>
|
||
<td width="40%" align="right"> <a accesskey="n" href="dbset_msgcall.html">Next</a></td>
|
||
</tr>
|
||
<tr>
|
||
<td width="40%" align="left" valign="top">Db::set_lorder() </td>
|
||
<td width="20%" align="center">
|
||
<a accesskey="h" href="index.html">Home</a>
|
||
</td>
|
||
<td width="40%" align="right" valign="top"> Db::set_msgcall()</td>
|
||
</tr>
|
||
</table>
|
||
</div>
|
||
</body>
|
||
</html>
|