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182 <h1>libmemcached Constants and Defaults
<a class=
"headerlink" href=
"#libmemcached-constants-and-defaults" title=
"Permalink to this headline">¶
</a></h1>
183 <div class=
"section" id=
"synopsis">
184 <h2>SYNOPSIS
<a class=
"headerlink" href=
"#synopsis" title=
"Permalink to this headline">¶
</a></h2>
186 <dt>#include
<libmemcached-
1.0/memcached.h
></dt><dd><p>Compile and link with -lmemcached
</p>
190 <dt id=
"c.LIBMEMCACHED_VERSION_STRING">
191 <code class=
"sig-name descname">LIBMEMCACHED_VERSION_STRING
</code><a class=
"headerlink" href=
"#c.LIBMEMCACHED_VERSION_STRING" title=
"Permalink to this definition">¶
</a></dt>
192 <dd><p>String value of libmemcached version such as “
1.0.99”
</p>
196 <dt id=
"c.LIBMEMCACHED_VERSION_HEX">
197 <code class=
"sig-name descname">LIBMEMCACHED_VERSION_HEX
</code><a class=
"headerlink" href=
"#c.LIBMEMCACHED_VERSION_HEX" title=
"Permalink to this definition">¶
</a></dt>
198 <dd><p>Hex value of the version number. “
0x00048000” This can be used for comparing
199 versions based on number.
</p>
203 <dt id=
"c.MEMCACHED_DEFAULT_PORT">
204 <code class=
"sig-name descname">MEMCACHED_DEFAULT_PORT
</code><a class=
"headerlink" href=
"#c.MEMCACHED_DEFAULT_PORT" title=
"Permalink to this definition">¶
</a></dt>
205 <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>
209 <dt id=
"c.MEMCACHED_DEFAULT_TIMEOUT">
210 <code class=
"sig-name descname">MEMCACHED_DEFAULT_TIMEOUT
</code><a class=
"headerlink" href=
"#c.MEMCACHED_DEFAULT_TIMEOUT" title=
"Permalink to this definition">¶
</a></dt>
211 <dd><p>Default timeout of
5000 milliseconds.
</p>
215 <dt id=
"c.MEMCACHED_DEFAULT_CONNECT_TIMEOUT">
216 <code class=
"sig-name descname">MEMCACHED_DEFAULT_CONNECT_TIMEOUT
</code><a class=
"headerlink" href=
"#c.MEMCACHED_DEFAULT_CONNECT_TIMEOUT" title=
"Permalink to this definition">¶
</a></dt>
217 <dd><p>Default connect timeout of
4000 milliseconds.
</p>
221 <dt id=
"c.MEMCACHED_MAX_BUFFER">
222 <code class=
"sig-name descname">MEMCACHED_MAX_BUFFER
</code><a class=
"headerlink" href=
"#c.MEMCACHED_MAX_BUFFER" title=
"Permalink to this definition">¶
</a></dt>
223 <dd><p>Default size of read/write buffers (which includes the null pointer).
</p>
227 <dt id=
"c.MEMCACHED_MAX_KEY">
228 <code class=
"sig-name descname">MEMCACHED_MAX_KEY
</code><a class=
"headerlink" href=
"#c.MEMCACHED_MAX_KEY" title=
"Permalink to this definition">¶
</a></dt>
229 <dd><p>Default maximum size of a key (which includes the null pointer). Master keys
230 have no limit, this only applies to keys used for storage.
</p>
234 <dt id=
"c.MEMCACHED_MAX_NAMESPACE">
235 <code class=
"sig-name descname">MEMCACHED_MAX_NAMESPACE
</code><a class=
"headerlink" href=
"#c.MEMCACHED_MAX_NAMESPACE" title=
"Permalink to this definition">¶
</a></dt>
236 <dd><p>Maximum length allowed for namespacing of a key. Defaults to
128.
</p>
240 <dt id=
"c.MEMCACHED_MAX_HOST_LENGTH">
241 <code class=
"sig-name descname">MEMCACHED_MAX_HOST_LENGTH
</code><a class=
"headerlink" href=
"#c.MEMCACHED_MAX_HOST_LENGTH" title=
"Permalink to this definition">¶
</a></dt>
242 <dd><p>Maximum allowed length of the hostname.
</p>
246 <dt id=
"c.MEMCACHED_MAX_HOST_SORT_LENGTH">
247 <code class=
"sig-name descname">MEMCACHED_MAX_HOST_SORT_LENGTH
</code><a class=
"headerlink" href=
"#c.MEMCACHED_MAX_HOST_SORT_LENGTH" title=
"Permalink to this definition">¶
</a></dt>
248 <dd><p>Length of the host string used for sorting. Used for Ketama.
</p>
252 <dt id=
"c.MEMCACHED_MAX_INTEGER_DISPLAY_LENGTH">
253 <code class=
"sig-name descname">MEMCACHED_MAX_INTEGER_DISPLAY_LENGTH
</code><a class=
"headerlink" href=
"#c.MEMCACHED_MAX_INTEGER_DISPLAY_LENGTH" title=
"Permalink to this definition">¶
</a></dt>
254 <dd><p>Maximum display width of an integer represented as string.
</p>
258 <dt id=
"c.MEMCACHED_CONTINUUM_ADDITION">
259 <code class=
"sig-name descname">MEMCACHED_CONTINUUM_ADDITION
</code><a class=
"headerlink" href=
"#c.MEMCACHED_CONTINUUM_ADDITION" title=
"Permalink to this definition">¶
</a></dt>
260 <dd><p>How many extra slots we should build for in the continuum, defaults to
10.
</p>
264 <dt id=
"c.MEMCACHED_EXPIRATION_NOT_ADD">
265 <code class=
"sig-name descname">MEMCACHED_EXPIRATION_NOT_ADD
</code><a class=
"headerlink" href=
"#c.MEMCACHED_EXPIRATION_NOT_ADD" title=
"Permalink to this definition">¶
</a></dt>
266 <dd><p>Value
<code class=
"docutils literal notranslate"><span class=
"pre">0xffffffffU
</span></code></p>
270 <dt id=
"c.MEMCACHED_STRIDE">
271 <code class=
"sig-name descname">MEMCACHED_STRIDE
</code><a class=
"headerlink" href=
"#c.MEMCACHED_STRIDE" title=
"Permalink to this definition">¶
</a></dt>
272 <dd><p>This is the “stride” used in the consistent hash used between replicas.
</p>
276 <dt id=
"c.MEMCACHED_SERVER_FAILURE_LIMIT">
277 <code class=
"sig-name descname">MEMCACHED_SERVER_FAILURE_LIMIT
</code><a class=
"headerlink" href=
"#c.MEMCACHED_SERVER_FAILURE_LIMIT" title=
"Permalink to this definition">¶
</a></dt>
282 <dt id=
"c.MEMCACHED_SERVER_FAILURE_RETRY_TIMEOUT">
283 <code class=
"sig-name descname">MEMCACHED_SERVER_FAILURE_RETRY_TIMEOUT
</code><a class=
"headerlink" href=
"#c.MEMCACHED_SERVER_FAILURE_RETRY_TIMEOUT" title=
"Permalink to this definition">¶
</a></dt>
288 <dt id=
"c.MEMCACHED_SERVER_FAILURE_DEAD_TIMEOUT">
289 <code class=
"sig-name descname">MEMCACHED_SERVER_FAILURE_DEAD_TIMEOUT
</code><a class=
"headerlink" href=
"#c.MEMCACHED_SERVER_FAILURE_DEAD_TIMEOUT" title=
"Permalink to this definition">¶
</a></dt>
294 <dt id=
"c.MEMCACHED_VERSION_STRING_LENGTH">
295 <code class=
"sig-name descname">MEMCACHED_VERSION_STRING_LENGTH
</code><a class=
"headerlink" href=
"#c.MEMCACHED_VERSION_STRING_LENGTH" title=
"Permalink to this definition">¶
</a></dt>
300 <div class=
"section" id=
"description">
301 <h2>DESCRIPTION
<a class=
"headerlink" href=
"#description" title=
"Permalink to this headline">¶
</a></h2>
302 <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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