aec92e15cd07f2769609188e1f2404cc16af6094
[m6w6/libmemcached] / libmemcached / memcached_last_error.html
1
2
3 <!DOCTYPE html>
4 <!--[if IE 8]><html class="no-js lt-ie9" lang="en" > <![endif]-->
5 <!--[if gt IE 8]><!--> <html class="no-js" lang="en" > <!--<![endif]-->
6 <head>
7 <meta charset="utf-8">
8
9 <meta name="viewport" content="width=device-width, initial-scale=1.0">
10
11 <title>Retrieving Error Codes and Messages &mdash; libmemcached 1.0.99 documentation</title>
12
13
14
15
16
17
18
19
20 <script type="text/javascript" src="../_static/js/modernizr.min.js"></script>
21
22
23 <script type="text/javascript" id="documentation_options" data-url_root="../" src="../_static/documentation_options.js"></script>
24 <script src="../_static/jquery.js"></script>
25 <script src="../_static/underscore.js"></script>
26 <script src="../_static/doctools.js"></script>
27 <script src="../_static/language_data.js"></script>
28
29 <script type="text/javascript" src="../_static/js/theme.js"></script>
30
31
32
33
34 <link rel="stylesheet" href="../_static/css/theme.css" type="text/css" />
35 <link rel="stylesheet" href="../_static/pygments.css" type="text/css" />
36 <link rel="index" title="Index" href="../genindex.html" />
37 <link rel="search" title="Search" href="../search.html" />
38 <link rel="copyright" title="Copyright" href="../copyright.html" />
39 <link rel="next" title="Converting Error Codes to Messages" href="memcached_strerror.html" />
40 <link rel="prev" title="Error Codes - memcached_return_t" href="memcached_return_t.html" />
41 </head>
42
43 <body class="wy-body-for-nav">
44
45
46 <div class="wy-grid-for-nav">
47
48 <nav data-toggle="wy-nav-shift" class="wy-nav-side">
49 <div class="wy-side-scroll">
50 <div class="wy-side-nav-search" >
51
52
53
54 <a href="../index.html" class="icon icon-home"> libmemcached
55
56
57
58 </a>
59
60
61
62
63 <div class="version">
64 1.0
65 </div>
66
67
68
69
70 <div role="search">
71 <form id="rtd-search-form" class="wy-form" action="../search.html" method="get">
72 <input type="text" name="q" placeholder="Search docs" />
73 <input type="hidden" name="check_keywords" value="yes" />
74 <input type="hidden" name="area" value="default" />
75 </form>
76 </div>
77
78
79 </div>
80
81 <div class="wy-menu wy-menu-vertical" data-spy="affix" role="navigation" aria-label="main navigation">
82
83
84
85
86
87
88 <p class="caption"><span class="caption-text">libmemcached</span></p>
89 <ul class="current">
90 <li class="toctree-l1"><a class="reference internal" href="../libmemcached.html">Introduction</a></li>
91 <li class="toctree-l1 current"><a class="reference internal" href="index.html">libmemcached API</a><ul class="current">
92 <li class="toctree-l2"><a class="reference internal" href="index_basics.html">Basics</a></li>
93 <li class="toctree-l2"><a class="reference internal" href="index_data.html">Working with Data</a></li>
94 <li class="toctree-l2 current"><a class="reference internal" href="index_errors.html">Messages and Errors</a><ul class="current">
95 <li class="toctree-l3"><a class="reference internal" href="memcached_return_t.html">Error Codes - memcached_return_t</a></li>
96 <li class="toctree-l3 current"><a class="current reference internal" href="#">Retrieving Error Codes and Messages</a></li>
97 <li class="toctree-l3"><a class="reference internal" href="memcached_strerror.html">Converting Error Codes to Messages</a></li>
98 </ul>
99 </li>
100 <li class="toctree-l2"><a class="reference internal" href="index_advanced.html">Advanced Topics</a></li>
101 <li class="toctree-l2"><a class="reference internal" href="index_deprecated.html">Deprecated Functionality</a></li>
102 </ul>
103 </li>
104 <li class="toctree-l1"><a class="reference internal" href="index_misc.html">Misc</a></li>
105 </ul>
106 <p class="caption"><span class="caption-text">libmemcachedutil</span></p>
107 <ul>
108 <li class="toctree-l1"><a class="reference internal" href="../libmemcachedutil.html">Introduction</a></li>
109 <li class="toctree-l1"><a class="reference internal" href="../libmemcachedutil/index.html">libmemcachedutil API</a></li>
110 </ul>
111 <p class="caption"><span class="caption-text">libhashkit</span></p>
112 <ul>
113 <li class="toctree-l1"><a class="reference internal" href="../libhashkit.html">Introduction</a></li>
114 <li class="toctree-l1"><a class="reference internal" href="../libhashkit/index.html">libhashkit API</a></li>
115 </ul>
116 <p class="caption"><span class="caption-text">Client Applications</span></p>
117 <ul>
118 <li class="toctree-l1"><a class="reference internal" href="../bin/index.html">Client Applications</a></li>
119 </ul>
120 <p class="caption"><span class="caption-text">Copyright</span></p>
121 <ul>
122 <li class="toctree-l1"><a class="reference internal" href="../copyright.html">Copyright</a></li>
123 </ul>
124
125
126
127 </div>
128 </div>
129 </nav>
130
131 <section data-toggle="wy-nav-shift" class="wy-nav-content-wrap">
132
133
134 <nav class="wy-nav-top" aria-label="top navigation">
135
136 <i data-toggle="wy-nav-top" class="fa fa-bars"></i>
137 <a href="../index.html">libmemcached</a>
138
139 </nav>
140
141
142 <div class="wy-nav-content">
143
144 <div class="rst-content">
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162 <div role="navigation" aria-label="breadcrumbs navigation">
163
164 <ul class="wy-breadcrumbs">
165
166 <li><a href="../index.html">Docs</a> &raquo;</li>
167
168 <li><a href="index.html">libmemcached API</a> &raquo;</li>
169
170 <li><a href="index_errors.html">Messages and Errors</a> &raquo;</li>
171
172 <li>Retrieving Error Codes and Messages</li>
173
174
175 <li class="wy-breadcrumbs-aside">
176
177
178
179 </li>
180
181 </ul>
182
183
184 <hr/>
185 </div>
186 <div role="main" class="document" itemscope="itemscope" itemtype="http://schema.org/Article">
187 <div itemprop="articleBody">
188
189 <div class="section" id="retrieving-error-codes-and-messages">
190 <h1>Retrieving Error Codes and Messages<a class="headerlink" href="#retrieving-error-codes-and-messages" title="Permalink to this headline"></a></h1>
191 <div class="section" id="synopsis">
192 <h2>SYNOPSIS<a class="headerlink" href="#synopsis" title="Permalink to this headline"></a></h2>
193 <dl class="simple">
194 <dt>#include &lt;libmemcached/memcached.h&gt;</dt><dd><p>Compile and link with -lmemcached</p>
195 </dd>
196 </dl>
197 <dl class="function">
198 <dt id="_CPPv420memcached_last_errorPK12memcached_st">
199 <span id="_CPPv320memcached_last_errorPK12memcached_st"></span><span id="_CPPv220memcached_last_errorPK12memcached_st"></span><span id="memcached_last_error__memcached_stCP"></span><a class="reference internal" href="memcached_return_t.html#_CPPv418memcached_return_t" title="memcached_return_t">memcached_return_t</a> <code class="sig-name descname">memcached_last_error</code><span class="sig-paren">(</span><em class="property">const</em> <a class="reference internal" href="memcached_create.html#_CPPv412memcached_st" title="memcached_st">memcached_st</a> *<span class="sig-paren">)</span><a class="headerlink" href="#_CPPv420memcached_last_errorPK12memcached_st" title="Permalink to this definition"></a><br /></dt>
200 <dd></dd></dl>
201
202 <dl class="function">
203 <dt id="_CPPv428memcached_last_error_messagePK12memcached_st">
204 <span id="_CPPv328memcached_last_error_messagePK12memcached_st"></span><span id="_CPPv228memcached_last_error_messagePK12memcached_st"></span><span id="memcached_last_error_message__memcached_stCP"></span><em class="property">const</em> char *<code class="sig-name descname">memcached_last_error_message</code><span class="sig-paren">(</span><em class="property">const</em> <a class="reference internal" href="memcached_create.html#_CPPv412memcached_st" title="memcached_st">memcached_st</a> *<span class="sig-paren">)</span><a class="headerlink" href="#_CPPv428memcached_last_error_messagePK12memcached_st" title="Permalink to this definition"></a><br /></dt>
205 <dd></dd></dl>
206
207 <dl class="function">
208 <dt id="_CPPv426memcached_last_error_errnoPK12memcached_st">
209 <span id="_CPPv326memcached_last_error_errnoPK12memcached_st"></span><span id="_CPPv226memcached_last_error_errnoPK12memcached_st"></span><span id="memcached_last_error_errno__memcached_stCP"></span>int <code class="sig-name descname">memcached_last_error_errno</code><span class="sig-paren">(</span><em class="property">const</em> <a class="reference internal" href="memcached_create.html#_CPPv412memcached_st" title="memcached_st">memcached_st</a> *<span class="sig-paren">)</span><a class="headerlink" href="#_CPPv426memcached_last_error_errnoPK12memcached_st" title="Permalink to this definition"></a><br /></dt>
210 <dd></dd></dl>
211
212 </div>
213 <div class="section" id="description">
214 <h2>DESCRIPTION<a class="headerlink" href="#description" title="Permalink to this headline"></a></h2>
215 <p>Retrieve error codes and messages.</p>
216 </div>
217 <div class="section" id="return-value">
218 <h2>RETURN VALUE<a class="headerlink" href="#return-value" title="Permalink to this headline"></a></h2>
219 <p><a class="reference internal" href="#_CPPv420memcached_last_errorPK12memcached_st" title="memcached_last_error"><code class="xref cpp cpp-any docutils literal notranslate"><span class="pre">memcached_last_error()</span></code></a> returns the last error code.</p>
220 <p><a class="reference internal" href="#_CPPv428memcached_last_error_messagePK12memcached_st" title="memcached_last_error_message"><code class="xref cpp cpp-any docutils literal notranslate"><span class="pre">memcached_last_error_message()</span></code></a> returns the last error message. If this error
221 came from a specific server, its hostname and port will be provided in the error
222 message. Any error message will be returned as ‘const char *’ which does not
223 need to be de-allocated. NULL will be returned if no error has occurred.</p>
224 <p><a class="reference internal" href="#_CPPv426memcached_last_error_errnoPK12memcached_st" title="memcached_last_error_errno"><code class="xref cpp cpp-any docutils literal notranslate"><span class="pre">memcached_last_error_errno()</span></code></a> returns any last local error code obtained from
225 <em class="manpage"><a class="manpage reference external" href="http://man7.org/linux/man-pages/man3/errno.3.html">errno(3)</a></em>.</p>
226 </div>
227 <div class="section" id="see-also">
228 <h2>SEE ALSO<a class="headerlink" href="#see-also" title="Permalink to this headline"></a></h2>
229 <ul class="simple">
230 <li><p><em class="manpage"><a class="manpage reference external" href="http://man7.org/linux/man-pages/man1/memcached.1.html">memcached(1)</a></em></p></li>
231 <li><p><a class="reference internal" href="../libmemcached.html"><span class="doc">C/C++ Client Library for memcached</span></a></p></li>
232 <li><p><a class="reference internal" href="memcached_strerror.html"><span class="doc">Converting Error Codes to Messages</span></a></p></li>
233 </ul>
234 </div>
235 </div>
236
237
238 </div>
239
240 </div>
241 <footer>
242
243 <div class="rst-footer-buttons" role="navigation" aria-label="footer navigation">
244
245 <a href="memcached_strerror.html" class="btn btn-neutral float-right" title="Converting Error Codes to Messages" accesskey="n" rel="next">Next <span class="fa fa-arrow-circle-right"></span></a>
246
247
248 <a href="memcached_return_t.html" class="btn btn-neutral float-left" title="Error Codes - memcached_return_t" accesskey="p" rel="prev"><span class="fa fa-arrow-circle-left"></span> Previous</a>
249
250 </div>
251
252
253 <hr/>
254
255 <div role="contentinfo">
256 <p>
257 &copy; <a href="../copyright.html">Copyright</a>
258
259 </p>
260 </div>
261 Built with <a href="http://sphinx-doc.org/">Sphinx</a> using a <a href="https://github.com/rtfd/sphinx_rtd_theme">theme</a> provided by <a href="https://readthedocs.org">Read the Docs</a>.
262
263 </footer>
264
265 </div>
266 </div>
267
268 </section>
269
270 </div>
271
272
273
274 <script type="text/javascript">
275 jQuery(function () {
276 SphinxRtdTheme.Navigation.enable(true);
277 });
278 </script>
279
280
281
282
283
284
285 </body>
286 </html>