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<a href="#CamelDataCache.description" class="shortcut">Description</a>
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<a href="#CamelDataCache.object-hierarchy" class="shortcut">Object Hierarchy</a>
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<div class="refentry">
<a name="CamelDataCache"></a><div class="titlepage"></div>
<div class="refnamediv"><table width="100%"><tr>
<td valign="top">
<h2><span class="refentrytitle"><a name="CamelDataCache.top_of_page"></a>CamelDataCache</span></h2>
<p>CamelDataCache</p>
</td>
<td valign="top" align="right"></td>
</tr></table></div>
<div class="refsynopsisdiv">
<a name="CamelDataCache.synopsis"></a><h2>Synopsis</h2>
<pre class="synopsis">struct <a class="link" href="CamelDataCache.html#CamelDataCache-struct" title="struct CamelDataCache">CamelDataCache</a>;
<a class="link" href="CamelDataCache.html" title="CamelDataCache"><span class="returnvalue">CamelDataCache</span></a> * <a class="link" href="CamelDataCache.html#camel-data-cache-new" title="camel_data_cache_new ()">camel_data_cache_new</a> (<em class="parameter"><code>const <span class="type">gchar</span> *path</code></em>,
<em class="parameter"><code><span class="type">GError</span> **error</code></em>);
const <span class="returnvalue">gchar</span> * <a class="link" href="CamelDataCache.html#camel-data-cache-get-path" title="camel_data_cache_get_path ()">camel_data_cache_get_path</a> (<em class="parameter"><code><a class="link" href="CamelDataCache.html" title="CamelDataCache"><span class="type">CamelDataCache</span></a> *cdc</code></em>);
<span class="returnvalue">void</span> <a class="link" href="CamelDataCache.html#camel-data-cache-set-path" title="camel_data_cache_set_path ()">camel_data_cache_set_path</a> (<em class="parameter"><code><a class="link" href="CamelDataCache.html" title="CamelDataCache"><span class="type">CamelDataCache</span></a> *cdc</code></em>,
<em class="parameter"><code>const <span class="type">gchar</span> *path</code></em>);
<span class="returnvalue">void</span> <a class="link" href="CamelDataCache.html#camel-data-cache-set-expire-age" title="camel_data_cache_set_expire_age ()">camel_data_cache_set_expire_age</a> (<em class="parameter"><code><a class="link" href="CamelDataCache.html" title="CamelDataCache"><span class="type">CamelDataCache</span></a> *cdc</code></em>,
<em class="parameter"><code><span class="type">time_t</span> when</code></em>);
<span class="returnvalue">void</span> <a class="link" href="CamelDataCache.html#camel-data-cache-set-expire-access" title="camel_data_cache_set_expire_access ()">camel_data_cache_set_expire_access</a> (<em class="parameter"><code><a class="link" href="CamelDataCache.html" title="CamelDataCache"><span class="type">CamelDataCache</span></a> *cdc</code></em>,
<em class="parameter"><code><span class="type">time_t</span> when</code></em>);
<a class="link" href="CamelStream.html" title="CamelStream"><span class="returnvalue">CamelStream</span></a> * <a class="link" href="CamelDataCache.html#camel-data-cache-add" title="camel_data_cache_add ()">camel_data_cache_add</a> (<em class="parameter"><code><a class="link" href="CamelDataCache.html" title="CamelDataCache"><span class="type">CamelDataCache</span></a> *cdc</code></em>,
<em class="parameter"><code>const <span class="type">gchar</span> *path</code></em>,
<em class="parameter"><code>const <span class="type">gchar</span> *key</code></em>,
<em class="parameter"><code><span class="type">GError</span> **error</code></em>);
<a class="link" href="CamelStream.html" title="CamelStream"><span class="returnvalue">CamelStream</span></a> * <a class="link" href="CamelDataCache.html#camel-data-cache-get" title="camel_data_cache_get ()">camel_data_cache_get</a> (<em class="parameter"><code><a class="link" href="CamelDataCache.html" title="CamelDataCache"><span class="type">CamelDataCache</span></a> *cdc</code></em>,
<em class="parameter"><code>const <span class="type">gchar</span> *path</code></em>,
<em class="parameter"><code>const <span class="type">gchar</span> *key</code></em>,
<em class="parameter"><code><span class="type">GError</span> **error</code></em>);
<span class="returnvalue">gint</span> <a class="link" href="CamelDataCache.html#camel-data-cache-remove" title="camel_data_cache_remove ()">camel_data_cache_remove</a> (<em class="parameter"><code><a class="link" href="CamelDataCache.html" title="CamelDataCache"><span class="type">CamelDataCache</span></a> *cdc</code></em>,
<em class="parameter"><code>const <span class="type">gchar</span> *path</code></em>,
<em class="parameter"><code>const <span class="type">gchar</span> *key</code></em>,
<em class="parameter"><code><span class="type">GError</span> **error</code></em>);
<span class="returnvalue">gchar</span> * <a class="link" href="CamelDataCache.html#camel-data-cache-get-filename" title="camel_data_cache_get_filename ()">camel_data_cache_get_filename</a> (<em class="parameter"><code><a class="link" href="CamelDataCache.html" title="CamelDataCache"><span class="type">CamelDataCache</span></a> *cdc</code></em>,
<em class="parameter"><code>const <span class="type">gchar</span> *path</code></em>,
<em class="parameter"><code>const <span class="type">gchar</span> *key</code></em>,
<em class="parameter"><code><span class="type">GError</span> **error</code></em>);
<span class="returnvalue">void</span> <a class="link" href="CamelDataCache.html#camel-data-cache-clear" title="camel_data_cache_clear ()">camel_data_cache_clear</a> (<em class="parameter"><code><a class="link" href="CamelDataCache.html" title="CamelDataCache"><span class="type">CamelDataCache</span></a> *cdc</code></em>,
<em class="parameter"><code>const <span class="type">gchar</span> *path</code></em>);
</pre>
</div>
<div class="refsect1">
<a name="CamelDataCache.object-hierarchy"></a><h2>Object Hierarchy</h2>
<pre class="synopsis">
GObject
+----<a class="link" href="CamelObject.html" title="CamelObject">CamelObject</a>
+----CamelDataCache
</pre>
</div>
<div class="refsect1">
<a name="CamelDataCache.description"></a><h2>Description</h2>
<p>
</p>
</div>
<div class="refsect1">
<a name="CamelDataCache.details"></a><h2>Details</h2>
<div class="refsect2">
<a name="CamelDataCache-struct"></a><h3>struct CamelDataCache</h3>
<pre class="programlisting">struct CamelDataCache;</pre>
<p>
</p>
</div>
<hr>
<div class="refsect2">
<a name="camel-data-cache-new"></a><h3>camel_data_cache_new ()</h3>
<pre class="programlisting"><a class="link" href="CamelDataCache.html" title="CamelDataCache"><span class="returnvalue">CamelDataCache</span></a> * camel_data_cache_new (<em class="parameter"><code>const <span class="type">gchar</span> *path</code></em>,
<em class="parameter"><code><span class="type">GError</span> **error</code></em>);</pre>
<p>
Create a new data cache.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>path</code></em> :</span></p></td>
<td>Base path of cache, subdirectories will be created here.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>error</code></em> :</span></p></td>
<td>return location for a <span class="type">GError</span>, or <code class="literal">NULL</code>
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>A new cache object, or NULL if the base path cannot
be written to.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="camel-data-cache-get-path"></a><h3>camel_data_cache_get_path ()</h3>
<pre class="programlisting">const <span class="returnvalue">gchar</span> * camel_data_cache_get_path (<em class="parameter"><code><a class="link" href="CamelDataCache.html" title="CamelDataCache"><span class="type">CamelDataCache</span></a> *cdc</code></em>);</pre>
<p>
Returns the path to the data cache.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>cdc</code></em> :</span></p></td>
<td>a <a class="link" href="CamelDataCache.html" title="CamelDataCache"><span class="type">CamelDataCache</span></a>
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>the path to the data cache</td>
</tr>
</tbody>
</table></div>
<p class="since">Since 2.32</p>
</div>
<hr>
<div class="refsect2">
<a name="camel-data-cache-set-path"></a><h3>camel_data_cache_set_path ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span> camel_data_cache_set_path (<em class="parameter"><code><a class="link" href="CamelDataCache.html" title="CamelDataCache"><span class="type">CamelDataCache</span></a> *cdc</code></em>,
<em class="parameter"><code>const <span class="type">gchar</span> *path</code></em>);</pre>
<p>
Sets the path to the data cache.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>cdc</code></em> :</span></p></td>
<td>a <a class="link" href="CamelDataCache.html" title="CamelDataCache"><span class="type">CamelDataCache</span></a>
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>path</code></em> :</span></p></td>
<td>path to the data cache</td>
</tr>
</tbody>
</table></div>
<p class="since">Since 2.32</p>
</div>
<hr>
<div class="refsect2">
<a name="camel-data-cache-set-expire-age"></a><h3>camel_data_cache_set_expire_age ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span> camel_data_cache_set_expire_age (<em class="parameter"><code><a class="link" href="CamelDataCache.html" title="CamelDataCache"><span class="type">CamelDataCache</span></a> *cdc</code></em>,
<em class="parameter"><code><span class="type">time_t</span> when</code></em>);</pre>
<p>
Set the cache expiration policy for aged entries.
</p>
<p>
Items in the cache older than <em class="parameter"><code>when</code></em> seconds may be
flushed at any time. Items are expired in a lazy
manner, so it is indeterminate when the items will
physically be removed.
</p>
<p>
Note you can set both an age and an access limit. The
age acts as a hard limit on cache entries.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>cdc</code></em> :</span></p></td>
<td>A <a class="link" href="CamelDataCache.html" title="CamelDataCache"><span class="type">CamelDataCache</span></a>
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>when</code></em> :</span></p></td>
<td>Timeout for age expiry, or -1 to disable.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="camel-data-cache-set-expire-access"></a><h3>camel_data_cache_set_expire_access ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span> camel_data_cache_set_expire_access (<em class="parameter"><code><a class="link" href="CamelDataCache.html" title="CamelDataCache"><span class="type">CamelDataCache</span></a> *cdc</code></em>,
<em class="parameter"><code><span class="type">time_t</span> when</code></em>);</pre>
<p>
Set the cache expiration policy for access times.
</p>
<p>
Items in the cache which haven't been accessed for <em class="parameter"><code>when</code></em>
seconds may be expired at any time. Items are expired in a lazy
manner, so it is indeterminate when the items will
physically be removed.
</p>
<p>
Note you can set both an age and an access limit. The
age acts as a hard limit on cache entries.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>cdc</code></em> :</span></p></td>
<td>A <a class="link" href="CamelDataCache.html" title="CamelDataCache"><span class="type">CamelDataCache</span></a>
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>when</code></em> :</span></p></td>
<td>Timeout for access, or -1 to disable access expiry.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="camel-data-cache-add"></a><h3>camel_data_cache_add ()</h3>
<pre class="programlisting"><a class="link" href="CamelStream.html" title="CamelStream"><span class="returnvalue">CamelStream</span></a> * camel_data_cache_add (<em class="parameter"><code><a class="link" href="CamelDataCache.html" title="CamelDataCache"><span class="type">CamelDataCache</span></a> *cdc</code></em>,
<em class="parameter"><code>const <span class="type">gchar</span> *path</code></em>,
<em class="parameter"><code>const <span class="type">gchar</span> *key</code></em>,
<em class="parameter"><code><span class="type">GError</span> **error</code></em>);</pre>
<p>
Add a new item to the cache.
</p>
<p>
The key and the path combine to form a unique key used to store
the item.
</p>
<p>
Potentially, expiry processing will be performed while this call
is executing.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>cdc</code></em> :</span></p></td>
<td>A <a class="link" href="CamelDataCache.html" title="CamelDataCache"><span class="type">CamelDataCache</span></a>
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>path</code></em> :</span></p></td>
<td>Relative path of item to add.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>key</code></em> :</span></p></td>
<td>Key of item to add.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>error</code></em> :</span></p></td>
<td>return location for a <span class="type">GError</span>, or <code class="literal">NULL</code>
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>A CamelStream (file) opened in read-write mode.
The caller must unref this when finished.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="camel-data-cache-get"></a><h3>camel_data_cache_get ()</h3>
<pre class="programlisting"><a class="link" href="CamelStream.html" title="CamelStream"><span class="returnvalue">CamelStream</span></a> * camel_data_cache_get (<em class="parameter"><code><a class="link" href="CamelDataCache.html" title="CamelDataCache"><span class="type">CamelDataCache</span></a> *cdc</code></em>,
<em class="parameter"><code>const <span class="type">gchar</span> *path</code></em>,
<em class="parameter"><code>const <span class="type">gchar</span> *key</code></em>,
<em class="parameter"><code><span class="type">GError</span> **error</code></em>);</pre>
<p>
Lookup an item in the cache. If the item exists, a stream
is returned for the item. The stream may be shared by
multiple callers, so ensure the stream is in a valid state
through external locking.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>cdc</code></em> :</span></p></td>
<td>A <a class="link" href="CamelDataCache.html" title="CamelDataCache"><span class="type">CamelDataCache</span></a>
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>path</code></em> :</span></p></td>
<td>Path to the (sub) cache the item exists in.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>key</code></em> :</span></p></td>
<td>Key for the cache item.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>error</code></em> :</span></p></td>
<td>return location for a <span class="type">GError</span>, or <code class="literal">NULL</code>
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>A cache item, or NULL if the cache item does not exist.</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="camel-data-cache-remove"></a><h3>camel_data_cache_remove ()</h3>
<pre class="programlisting"><span class="returnvalue">gint</span> camel_data_cache_remove (<em class="parameter"><code><a class="link" href="CamelDataCache.html" title="CamelDataCache"><span class="type">CamelDataCache</span></a> *cdc</code></em>,
<em class="parameter"><code>const <span class="type">gchar</span> *path</code></em>,
<em class="parameter"><code>const <span class="type">gchar</span> *key</code></em>,
<em class="parameter"><code><span class="type">GError</span> **error</code></em>);</pre>
<p>
Remove/expire a cache item.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>cdc</code></em> :</span></p></td>
<td>A <a class="link" href="CamelDataCache.html" title="CamelDataCache"><span class="type">CamelDataCache</span></a>
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>error</code></em> :</span></p></td>
<td>return location for a <span class="type">GError</span>, or <code class="literal">NULL</code>
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="camel-data-cache-get-filename"></a><h3>camel_data_cache_get_filename ()</h3>
<pre class="programlisting"><span class="returnvalue">gchar</span> * camel_data_cache_get_filename (<em class="parameter"><code><a class="link" href="CamelDataCache.html" title="CamelDataCache"><span class="type">CamelDataCache</span></a> *cdc</code></em>,
<em class="parameter"><code>const <span class="type">gchar</span> *path</code></em>,
<em class="parameter"><code>const <span class="type">gchar</span> *key</code></em>,
<em class="parameter"><code><span class="type">GError</span> **error</code></em>);</pre>
<p>
Lookup the filename for an item in the cache
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>cdc</code></em> :</span></p></td>
<td>A <a class="link" href="CamelDataCache.html" title="CamelDataCache"><span class="type">CamelDataCache</span></a>
</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>path</code></em> :</span></p></td>
<td>Path to the (sub) cache the item exists in.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>key</code></em> :</span></p></td>
<td>Key for the cache item.</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>error</code></em> :</span></p></td>
<td>return location for a <span class="type">GError</span>, or <code class="literal">NULL</code>
</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>The filename for a cache item</td>
</tr>
</tbody>
</table></div>
<p class="since">Since 2.26</p>
</div>
<hr>
<div class="refsect2">
<a name="camel-data-cache-clear"></a><h3>camel_data_cache_clear ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span> camel_data_cache_clear (<em class="parameter"><code><a class="link" href="CamelDataCache.html" title="CamelDataCache"><span class="type">CamelDataCache</span></a> *cdc</code></em>,
<em class="parameter"><code>const <span class="type">gchar</span> *path</code></em>);</pre>
<p>
Clear cache's content in <em class="parameter"><code>path</code></em>.
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<td><p><span class="term"><em class="parameter"><code>cdc</code></em> :</span></p></td>
<td>a <a class="link" href="CamelDataCache.html" title="CamelDataCache"><span class="type">CamelDataCache</span></a>
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<td><p><span class="term"><em class="parameter"><code>path</code></em> :</span></p></td>
<td>Path to the (sub) cache the item exists in.</td>
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<p class="since">Since 3.2</p>
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