mirror of
https://github.com/berkeleydb/libdb.git
synced 2024-11-17 01:26:25 +00:00
85 lines
4.9 KiB
HTML
85 lines
4.9 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>Verbose Output</title>
|
|||
|
|
<link rel="stylesheet" href="gettingStarted.css" type="text/css" />
|
|||
|
|
<meta name="generator" content="DocBook XSL Stylesheets V1.73.2" />
|
|||
|
|
<link rel="start" href="index.html" title="Berkeley DB Upgrade Guide" />
|
|||
|
|
<link rel="up" href="upgrade_4_6_toc.html" title="Chapter 4. Upgrading Berkeley DB 4.5 applications to Berkeley DB 4.6" />
|
|||
|
|
<link rel="prev" href="upgrade_4_6_full_election.html" title="DB_REP_FULL_ELECTION" />
|
|||
|
|
<link rel="next" href="upgrade_4_6_verb.html" title="DB_VERB_REPLICATION" />
|
|||
|
|
</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">Verbose Output</th>
|
|||
|
|
</tr>
|
|||
|
|
<tr>
|
|||
|
|
<td width="20%" align="left"><a accesskey="p" href="upgrade_4_6_full_election.html">Prev</a> </td>
|
|||
|
|
<th width="60%" align="center">Chapter 4. Upgrading Berkeley DB 4.5 applications to Berkeley DB 4.6</th>
|
|||
|
|
<td width="20%" align="right"> <a accesskey="n" href="upgrade_4_6_verb.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="upgrade_4_6_verbose"></a>Verbose Output</h2>
|
|||
|
|
</div>
|
|||
|
|
</div>
|
|||
|
|
</div>
|
|||
|
|
<p>When an error occurs in the Berkeley DB library, an exception is thrown or an
|
|||
|
|
error return value is returned by the interface. In some cases,
|
|||
|
|
however, the exception or returned value may be insufficient to
|
|||
|
|
completely describe the cause of the error, especially during initial
|
|||
|
|
application debugging. Applications can configure Berkeley DB for verbose
|
|||
|
|
messages to be output when an error occurs, but it's a common cause of
|
|||
|
|
confusion for new users that no verbose messages are available by
|
|||
|
|
default.</p>
|
|||
|
|
<p>In the Berkeley DB 4.6 release, verbose messages are configured by default.
|
|||
|
|
For the C and C++ APIs, this means the default configuration when
|
|||
|
|
applications first create <a href="../api_reference/C/db.html" class="olink">DB</a> or <a href="../api_reference/C/env.html" class="olink">DB_ENV</a> handles is as if
|
|||
|
|
the <a href="../api_reference/C/envset_errfile.html" class="olink">DB_ENV->set_errfile()</a> or <a href="../api_reference/C/dbset_errfile.html" class="olink">DB->set_errfile()</a> methods were called
|
|||
|
|
with the standard error output (stderr) specified as the FILE *
|
|||
|
|
argument. Applications wanting no output at all can turn off this
|
|||
|
|
default configuration by calling the <a href="../api_reference/C/envset_errfile.html" class="olink">DB_ENV->set_errfile()</a> or
|
|||
|
|
<a href="../api_reference/C/dbset_errfile.html" class="olink">DB->set_errfile()</a> methods with NULL as the FILE * argument.
|
|||
|
|
Additionally, explicitly configuring the error output channel using any
|
|||
|
|
of the <a href="../api_reference/C/envset_errfile.html" class="olink">DB_ENV->set_errfile()</a>, <a href="../api_reference/C/envset_errcall.html" class="olink">DB_ENV->set_errcall()</a>, <a href="../api_reference/CXX/envset_error_stream.html" class="olink">DbEnv::set_error_stream()</a> or <a href="../api_reference/CXX/dbset_error_stream.html" class="olink">Db::set_error_stream()</a>
|
|||
|
|
methods will also turn off this default output for the application.</p>
|
|||
|
|
<p>Applications which configure Berkeley DB with any error output channel should
|
|||
|
|
not require any changes.</p>
|
|||
|
|
<p>Applications which depend on having no output from the Berkeley DB library by
|
|||
|
|
default, should be changed to call the <a href="../api_reference/C/envset_errfile.html" class="olink">DB_ENV->set_errfile()</a> or
|
|||
|
|
<a href="../api_reference/C/dbset_errfile.html" class="olink">DB->set_errfile()</a> methods with NULL as the FILE * argument.</p>
|
|||
|
|
</div>
|
|||
|
|
<div class="navfooter">
|
|||
|
|
<hr />
|
|||
|
|
<table width="100%" summary="Navigation footer">
|
|||
|
|
<tr>
|
|||
|
|
<td width="40%" align="left"><a accesskey="p" href="upgrade_4_6_full_election.html">Prev</a> </td>
|
|||
|
|
<td width="20%" align="center">
|
|||
|
|
<a accesskey="u" href="upgrade_4_6_toc.html">Up</a>
|
|||
|
|
</td>
|
|||
|
|
<td width="40%" align="right"> <a accesskey="n" href="upgrade_4_6_verb.html">Next</a></td>
|
|||
|
|
</tr>
|
|||
|
|
<tr>
|
|||
|
|
<td width="40%" align="left" valign="top">DB_REP_FULL_ELECTION </td>
|
|||
|
|
<td width="20%" align="center">
|
|||
|
|
<a accesskey="h" href="index.html">Home</a>
|
|||
|
|
</td>
|
|||
|
|
<td width="40%" align="right" valign="top"> DB_VERB_REPLICATION</td>
|
|||
|
|
</tr>
|
|||
|
|
</table>
|
|||
|
|
</div>
|
|||
|
|
</body>
|
|||
|
|
</html>
|