1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
|
<?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>DbEnv::set_errpfx()</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="env.html" title="Chapter 5. The DbEnv Handle" />
<link rel="prev" href="envset_error_stream.html" title="DbEnv::set_error_stream()" />
<link rel="next" href="envset_feedback.html" title="DbEnv::set_feedback()" />
</head>
<body>
<div xmlns="" class="navheader">
<div class="libver">
<p>Library Version 11.2.5.3</p>
</div>
<table width="100%" summary="Navigation header">
<tr>
<th colspan="3" align="center">DbEnv::set_errpfx()</th>
</tr>
<tr>
<td width="20%" align="left"><a accesskey="p" href="envset_error_stream.html">Prev</a> </td>
<th width="60%" align="center">Chapter 5.
The DbEnv Handle
</th>
<td width="20%" align="right"> <a accesskey="n" href="envset_feedback.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="envset_errpfx"></a>DbEnv::set_errpfx()</h2>
</div>
</div>
</div>
<pre class="programlisting">#include <db_cxx.h>
void
DbEnv::set_errpfx(const char *errpfx); </pre>
<p>
Set the prefix string that appears before error messages issued by
Berkeley DB.
</p>
<p>
The <a class="xref" href="dbset_errpfx.html" title="Db::set_errpfx()">Db::set_errpfx()</a>
and <code class="methodname">DbEnv::set_errpfx()</code> methods do not copy the memory to which the
<span class="bold"><strong>errpfx</strong></span> 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 <code class="methodname">DbEnv::set_errpfx()</code> method configures operations performed using
the specified <a class="link" href="env.html" title="Chapter 5. The DbEnv Handle">DbEnv</a>
handle, not all operations performed on the underlying database
environment.
</p>
<p>
The <code class="methodname">DbEnv::set_errpfx()</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="idp7366168"></a>Parameters</h3>
</div>
</div>
</div>
<div class="sect3" lang="en" xml:lang="en">
<div class="titlepage">
<div>
<div>
<h4 class="title"><a id="idp7366360"></a>errpfx</h4>
</div>
</div>
</div>
<p>
The <span class="bold"><strong>errpfx</strong></span> parameter is the
application-specified error prefix for additional error messages.
</p>
</div>
</div>
<div class="sect2" lang="en" xml:lang="en">
<div class="titlepage">
<div>
<div>
<h3 class="title"><a id="idp7352672"></a>Class</h3>
</div>
</div>
</div>
<p>
<a class="link" href="env.html" title="Chapter 5. The DbEnv Handle">DbEnv</a>
</p>
</div>
<div class="sect2" lang="en" xml:lang="en">
<div class="titlepage">
<div>
<div>
<h3 class="title"><a id="idp7364632"></a>See Also</h3>
</div>
</div>
</div>
<p>
<a class="xref" href="env.html#envlist" title="Database Environments and Related Methods">Database Environments 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="envset_error_stream.html">Prev</a> </td>
<td width="20%" align="center">
<a accesskey="u" href="env.html">Up</a>
</td>
<td width="40%" align="right"> <a accesskey="n" href="envset_feedback.html">Next</a></td>
</tr>
<tr>
<td width="40%" align="left" valign="top">DbEnv::set_error_stream() </td>
<td width="20%" align="center">
<a accesskey="h" href="index.html">Home</a>
</td>
<td width="40%" align="right" valign="top"> DbEnv::set_feedback()</td>
</tr>
</table>
</div>
</body>
</html>
|
