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174 <h1>libmemcached Constants and Defaults
<a class=
"headerlink" href=
"#libmemcached-constants-and-defaults" title=
"Permalink to this headline">¶
</a></h1>
175 <div class=
"section" id=
"synopsis">
176 <h2>SYNOPSIS
<a class=
"headerlink" href=
"#synopsis" title=
"Permalink to this headline">¶
</a></h2>
177 <dl class=
"docutils">
178 <dt>#include
<libmemcached-
<a href=
"#id1"><span class=
"problematic" id=
"id2">|libmemcached_version|
</span></a>/memcached.h
></dt>
179 <dd>Compile and link with -lmemcached
</dd>
182 <dt id=
"c.LIBMEMCACHED_VERSION_STRING">
183 <code class=
"descname">LIBMEMCACHED_VERSION_STRING
</code><a class=
"headerlink" href=
"#c.LIBMEMCACHED_VERSION_STRING" title=
"Permalink to this definition">¶
</a></dt>
184 <dd><p>String value of libmemcached version such as
"1.1.0"</p>
188 <dt id=
"c.LIBMEMCACHED_VERSION_HEX">
189 <code class=
"descname">LIBMEMCACHED_VERSION_HEX
</code><a class=
"headerlink" href=
"#c.LIBMEMCACHED_VERSION_HEX" title=
"Permalink to this definition">¶
</a></dt>
190 <dd><p>Hex value of the version number, e.g.
"0x00048000".
191 This can be used for comparing versions based on number.
</p>
195 <dt id=
"c.MEMCACHED_DEFAULT_PORT">
196 <code class=
"descname">MEMCACHED_DEFAULT_PORT
</code><a class=
"headerlink" href=
"#c.MEMCACHED_DEFAULT_PORT" title=
"Permalink to this definition">¶
</a></dt>
197 <dd><p>The default port used by
<a class=
"reference internal" href=
"configuration.html#_CPPv49memcachedPKc6size_t" title=
"memcached"><code class=
"xref cpp cpp-any docutils literal notranslate"><span class=
"pre">memcached()
</span></code></a>.
</p>
201 <dt id=
"c.MEMCACHED_DEFAULT_TIMEOUT">
202 <code class=
"descname">MEMCACHED_DEFAULT_TIMEOUT
</code><a class=
"headerlink" href=
"#c.MEMCACHED_DEFAULT_TIMEOUT" title=
"Permalink to this definition">¶
</a></dt>
203 <dd><p>Default timeout of
5000 milliseconds.
</p>
207 <dt id=
"c.MEMCACHED_DEFAULT_CONNECT_TIMEOUT">
208 <code class=
"descname">MEMCACHED_DEFAULT_CONNECT_TIMEOUT
</code><a class=
"headerlink" href=
"#c.MEMCACHED_DEFAULT_CONNECT_TIMEOUT" title=
"Permalink to this definition">¶
</a></dt>
209 <dd><p>Default connect timeout of
4000 milliseconds.
</p>
213 <dt id=
"c.MEMCACHED_MAX_BUFFER">
214 <code class=
"descname">MEMCACHED_MAX_BUFFER
</code><a class=
"headerlink" href=
"#c.MEMCACHED_MAX_BUFFER" title=
"Permalink to this definition">¶
</a></dt>
215 <dd><p>Default size of read/write buffers (which includes the null pointer).
</p>
219 <dt id=
"c.MEMCACHED_MAX_KEY">
220 <code class=
"descname">MEMCACHED_MAX_KEY
</code><a class=
"headerlink" href=
"#c.MEMCACHED_MAX_KEY" title=
"Permalink to this definition">¶
</a></dt>
221 <dd><p>Default maximum size of a key (which includes the null pointer). Master keys
222 have no limit, this only applies to keys used for storage.
</p>
226 <dt id=
"c.MEMCACHED_MAX_NAMESPACE">
227 <code class=
"descname">MEMCACHED_MAX_NAMESPACE
</code><a class=
"headerlink" href=
"#c.MEMCACHED_MAX_NAMESPACE" title=
"Permalink to this definition">¶
</a></dt>
228 <dd><p>Maximum length allowed for namespacing of a key. Defaults to
128.
</p>
232 <dt id=
"c.MEMCACHED_MAX_HOST_LENGTH">
233 <code class=
"descname">MEMCACHED_MAX_HOST_LENGTH
</code><a class=
"headerlink" href=
"#c.MEMCACHED_MAX_HOST_LENGTH" title=
"Permalink to this definition">¶
</a></dt>
234 <dd><p>Maximum allowed length of the hostname.
</p>
238 <dt id=
"c.MEMCACHED_MAX_HOST_SORT_LENGTH">
239 <code class=
"descname">MEMCACHED_MAX_HOST_SORT_LENGTH
</code><a class=
"headerlink" href=
"#c.MEMCACHED_MAX_HOST_SORT_LENGTH" title=
"Permalink to this definition">¶
</a></dt>
240 <dd><p>Length of the host string used for sorting. Used for Ketama.
</p>
244 <dt id=
"c.MEMCACHED_MAX_INTEGER_DISPLAY_LENGTH">
245 <code class=
"descname">MEMCACHED_MAX_INTEGER_DISPLAY_LENGTH
</code><a class=
"headerlink" href=
"#c.MEMCACHED_MAX_INTEGER_DISPLAY_LENGTH" title=
"Permalink to this definition">¶
</a></dt>
246 <dd><p>Maximum display width of an integer represented as string.
</p>
250 <dt id=
"c.MEMCACHED_CONTINUUM_ADDITION">
251 <code class=
"descname">MEMCACHED_CONTINUUM_ADDITION
</code><a class=
"headerlink" href=
"#c.MEMCACHED_CONTINUUM_ADDITION" title=
"Permalink to this definition">¶
</a></dt>
252 <dd><p>How many extra slots we should build for in the continuum, defaults to
10.
</p>
256 <dt id=
"c.MEMCACHED_EXPIRATION_NOT_ADD">
257 <code class=
"descname">MEMCACHED_EXPIRATION_NOT_ADD
</code><a class=
"headerlink" href=
"#c.MEMCACHED_EXPIRATION_NOT_ADD" title=
"Permalink to this definition">¶
</a></dt>
258 <dd><p>Value
<code class=
"docutils literal notranslate"><span class=
"pre">0xffffffffU
</span></code></p>
262 <dt id=
"c.MEMCACHED_STRIDE">
263 <code class=
"descname">MEMCACHED_STRIDE
</code><a class=
"headerlink" href=
"#c.MEMCACHED_STRIDE" title=
"Permalink to this definition">¶
</a></dt>
264 <dd><p>This is the
"stride
" used in the consistent hash used between replicas.
</p>
268 <dt id=
"c.MEMCACHED_SERVER_FAILURE_LIMIT">
269 <code class=
"descname">MEMCACHED_SERVER_FAILURE_LIMIT
</code><a class=
"headerlink" href=
"#c.MEMCACHED_SERVER_FAILURE_LIMIT" title=
"Permalink to this definition">¶
</a></dt>
274 <dt id=
"c.MEMCACHED_SERVER_FAILURE_RETRY_TIMEOUT">
275 <code class=
"descname">MEMCACHED_SERVER_FAILURE_RETRY_TIMEOUT
</code><a class=
"headerlink" href=
"#c.MEMCACHED_SERVER_FAILURE_RETRY_TIMEOUT" title=
"Permalink to this definition">¶
</a></dt>
280 <dt id=
"c.MEMCACHED_SERVER_FAILURE_DEAD_TIMEOUT">
281 <code class=
"descname">MEMCACHED_SERVER_FAILURE_DEAD_TIMEOUT
</code><a class=
"headerlink" href=
"#c.MEMCACHED_SERVER_FAILURE_DEAD_TIMEOUT" title=
"Permalink to this definition">¶
</a></dt>
286 <dt id=
"c.MEMCACHED_VERSION_STRING_LENGTH">
287 <code class=
"descname">MEMCACHED_VERSION_STRING_LENGTH
</code><a class=
"headerlink" href=
"#c.MEMCACHED_VERSION_STRING_LENGTH" title=
"Permalink to this definition">¶
</a></dt>
292 <div class=
"section" id=
"description">
293 <h2>DESCRIPTION
<a class=
"headerlink" href=
"#description" title=
"Permalink to this headline">¶
</a></h2>
294 <p>These compile time defaults are provided by
<code class=
"xref cpp cpp-any docutils literal notranslate"><span class=
"pre">libmemcached
</span></code> for convenience.
</p>
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