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<title>EModule: Evolution-Data-Server Reference Manual</title>
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<a href="#eds-EModule.description" class="shortcut">Description</a></span>
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<a name="eds-EModule"></a><div class="titlepage"></div>
<div class="refnamediv"><table width="100%"><tr>
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<h2><span class="refentrytitle"><a name="eds-EModule.top_of_page"></a>EModule</span></h2>
<p>EModule — A module loader</p>
</td>
<td class="gallery_image" valign="top" align="right"></td>
</tr></table></div>
<div class="refsect1">
<a name="eds-EModule.functions"></a><h2>Functions</h2>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="functions_return">
<col class="functions_name">
</colgroup>
<tbody>
<tr>
<td class="function_type">
<a class="link" href="eds-EModule.html#EModule" title="struct EModule"><span class="returnvalue">EModule</span></a> *
</td>
<td class="function_name">
<a class="link" href="eds-EModule.html#e-module-new" title="e_module_new ()">e_module_new</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">const <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar"><span class="returnvalue">gchar</span></a> *
</td>
<td class="function_name">
<a class="link" href="eds-EModule.html#e-module-get-filename" title="e_module_get_filename ()">e_module_get_filename</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a href="/usr/share/gtk-doc/html/glib/glib-Doubly-Linked-Lists.html#GList"><span class="returnvalue">GList</span></a> *
</td>
<td class="function_name">
<a class="link" href="eds-EModule.html#e-module-load-all-in-directory" title="e_module_load_all_in_directory ()">e_module_load_all_in_directory</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a class="link" href="eds-EModule.html#EModule" title="struct EModule"><span class="returnvalue">EModule</span></a> *
</td>
<td class="function_name">
<a class="link" href="eds-EModule.html#e-module-load-file" title="e_module_load_file ()">e_module_load_file</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<span class="c_punctuation">(</span><a class="link" href="eds-EModule.html#ETypeFunc" title="ETypeFunc ()">*ETypeFunc</a><span class="c_punctuation">)</span> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="eds-EModule.html#e-type-traverse" title="e_type_traverse ()">e_type_traverse</a> <span class="c_punctuation">()</span>
</td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect1">
<a name="eds-EModule.other"></a><h2>Types and Values</h2>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="name">
<col class="description">
</colgroup>
<tbody>
<tr>
<td class="datatype_keyword">struct</td>
<td class="function_name"><a class="link" href="eds-EModule.html#EModule" title="struct EModule">EModule</a></td>
</tr>
<tr>
<td class="datatype_keyword">struct</td>
<td class="function_name"><a class="link" href="eds-EModule.html#EModuleClass" title="struct EModuleClass">EModuleClass</a></td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect1">
<a name="eds-EModule.includes"></a><h2>Includes</h2>
<pre class="synopsis">#include <libedataserver/libedataserver.h>
</pre>
</div>
<div class="refsect1">
<a name="eds-EModule.description"></a><h2>Description</h2>
</div>
<div class="refsect1">
<a name="eds-EModule.functions_details"></a><h2>Functions</h2>
<div class="refsect2">
<a name="e-module-new"></a><h3>e_module_new ()</h3>
<pre class="programlisting"><a class="link" href="eds-EModule.html#EModule" title="struct EModule"><span class="returnvalue">EModule</span></a> *
e_module_new (<em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *filename</code></em>);</pre>
<p>Creates a new <a class="link" href="eds-EModule.html#EModule" title="struct EModule"><span class="type">EModule</span></a> that will load the specific shared library
when in use.</p>
<div class="refsect3">
<a name="id-1.4.2.8.7.2.5"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>filename</p></td>
<td class="parameter_description"><p>filename of the shared library module</p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
<div class="refsect3">
<a name="id-1.4.2.8.7.2.6"></a><h4>Returns</h4>
<p> a new <a class="link" href="eds-EModule.html#EModule" title="struct EModule"><span class="type">EModule</span></a> for <em class="parameter"><code>filename</code></em>
</p>
</div>
<p class="since">Since: <a class="link" href="api-index-3.4.html" title="Index of new symbols in 3.4">3.4</a></p>
</div>
<hr>
<div class="refsect2">
<a name="e-module-get-filename"></a><h3>e_module_get_filename ()</h3>
<pre class="programlisting">const <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar"><span class="returnvalue">gchar</span></a> *
e_module_get_filename (<em class="parameter"><code><a class="link" href="eds-EModule.html#EModule" title="struct EModule"><span class="type">EModule</span></a> *module</code></em>);</pre>
<p>Returns the filename of the shared library for <em class="parameter"><code>module</code></em>
. The
string is owned by <em class="parameter"><code>module</code></em>
and should not be modified or freed.</p>
<div class="refsect3">
<a name="id-1.4.2.8.7.3.5"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>module</p></td>
<td class="parameter_description"><p>an <a class="link" href="eds-EModule.html#EModule" title="struct EModule"><span class="type">EModule</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
<div class="refsect3">
<a name="id-1.4.2.8.7.3.6"></a><h4>Returns</h4>
<p> the filename for <em class="parameter"><code>module</code></em>
</p>
</div>
<p class="since">Since: <a class="link" href="api-index-3.4.html" title="Index of new symbols in 3.4">3.4</a></p>
</div>
<hr>
<div class="refsect2">
<a name="e-module-load-all-in-directory"></a><h3>e_module_load_all_in_directory ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/glib/glib-Doubly-Linked-Lists.html#GList"><span class="returnvalue">GList</span></a> *
e_module_load_all_in_directory (<em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *dirname</code></em>);</pre>
<p>Loads all the modules in the specified directory into memory. If
you want to unload them (enabling on-demand loading) you must call
<a href="/usr/share/gtk-doc/html/gobject/GTypeModule.html#g-type-module-unuse"><code class="function">g_type_module_unuse()</code></a> on all the modules. Free the returned list
with <a href="/usr/share/gtk-doc/html/glib/glib-Doubly-Linked-Lists.html#g-list-free"><code class="function">g_list_free()</code></a>.</p>
<div class="refsect3">
<a name="id-1.4.2.8.7.4.5"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>dirname</p></td>
<td class="parameter_description"><p>pathname for a directory containing modules to load</p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
<div class="refsect3">
<a name="id-1.4.2.8.7.4.6"></a><h4>Returns</h4>
<p> a list of <a href="eds-EModule.html#EModule"><span class="type">EModules</span></a> loaded from <em class="parameter"><code>dirname</code></em>
</p>
</div>
<p class="since">Since: <a class="link" href="api-index-3.4.html" title="Index of new symbols in 3.4">3.4</a></p>
</div>
<hr>
<div class="refsect2">
<a name="e-module-load-file"></a><h3>e_module_load_file ()</h3>
<pre class="programlisting"><a class="link" href="eds-EModule.html#EModule" title="struct EModule"><span class="returnvalue">EModule</span></a> *
e_module_load_file (<em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *filename</code></em>);</pre>
<p>Load the module from the specified filename into memory. If
you want to unload it (enabling on-demand loading) you must call
<a href="/usr/share/gtk-doc/html/gobject/GTypeModule.html#g-type-module-unuse"><code class="function">g_type_module_unuse()</code></a> on the module.</p>
<div class="refsect3">
<a name="id-1.4.2.8.7.5.5"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>filename</p></td>
<td class="parameter_description"><p>filename of the module to load</p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
<div class="refsect3">
<a name="id-1.4.2.8.7.5.6"></a><h4>Returns</h4>
<p> an <a class="link" href="eds-EModule.html#EModule" title="struct EModule"><span class="type">EModule</span></a> loaded from <em class="parameter"><code>filename</code></em>
</p>
</div>
<p class="since">Since: 3.16</p>
</div>
<hr>
<div class="refsect2">
<a name="ETypeFunc"></a><h3>ETypeFunc ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
<span class="c_punctuation">(</span>*ETypeFunc<span class="c_punctuation">)</span> (<em class="parameter"><code><a href="/usr/share/gtk-doc/html/gobject/gobject-Type-Information.html#GType"><span class="type">GType</span></a> type</code></em>,
<em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> user_data</code></em>);</pre>
<p>Specifies the type of functions passed to <a class="link" href="eds-EModule.html#e-type-traverse" title="e_type_traverse ()"><code class="function">e_type_traverse()</code></a>.</p>
<div class="refsect3">
<a name="id-1.4.2.8.7.6.5"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>type</p></td>
<td class="parameter_description"><p>a <a href="/usr/share/gtk-doc/html/gobject/gobject-Type-Information.html#GType"><span class="type">GType</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>user_data</p></td>
<td class="parameter_description"><p>user data passed to <a class="link" href="eds-EModule.html#e-type-traverse" title="e_type_traverse ()"><code class="function">e_type_traverse()</code></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<p class="since">Since: <a class="link" href="api-index-3.4.html" title="Index of new symbols in 3.4">3.4</a></p>
</div>
<hr>
<div class="refsect2">
<a name="e-type-traverse"></a><h3>e_type_traverse ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
e_type_traverse (<em class="parameter"><code><a href="/usr/share/gtk-doc/html/gobject/gobject-Type-Information.html#GType"><span class="type">GType</span></a> parent_type</code></em>,
<em class="parameter"><code><a class="link" href="eds-EModule.html#ETypeFunc" title="ETypeFunc ()"><span class="type">ETypeFunc</span></a> func</code></em>,
<em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> user_data</code></em>);</pre>
<p>Calls <em class="parameter"><code>func</code></em>
for all instantiable subtypes of <em class="parameter"><code>parent_type</code></em>
.</p>
<p>This is often useful for extending functionality by way of <a class="link" href="eds-EModule.html#EModule" title="struct EModule"><span class="type">EModule</span></a>.
A module may register a subtype of <em class="parameter"><code>parent_type</code></em>
in its <code class="function">e_module_load()</code>
function. Then later on the application will call <a class="link" href="eds-EModule.html#e-type-traverse" title="e_type_traverse ()"><code class="function">e_type_traverse()</code></a>
to instantiate all registered subtypes of <em class="parameter"><code>parent_type</code></em>
.</p>
<div class="refsect3">
<a name="id-1.4.2.8.7.7.6"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>parent_type</p></td>
<td class="parameter_description"><p>the root <a href="/usr/share/gtk-doc/html/gobject/gobject-Type-Information.html#GType"><span class="type">GType</span></a> to traverse from</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>func</p></td>
<td class="parameter_description"><p>the function to call for each visited <a href="/usr/share/gtk-doc/html/gobject/gobject-Type-Information.html#GType"><span class="type">GType</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>user_data</p></td>
<td class="parameter_description"><p>user data to pass to the function</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<p class="since">Since: <a class="link" href="api-index-3.4.html" title="Index of new symbols in 3.4">3.4</a></p>
</div>
</div>
<div class="refsect1">
<a name="eds-EModule.other_details"></a><h2>Types and Values</h2>
<div class="refsect2">
<a name="EModule"></a><h3>struct EModule</h3>
<pre class="programlisting">struct EModule {
GTypeModule parent;
EModulePrivate *priv;
};
</pre>
<p>Contains only private data that should be read and manipulated using the
functions below.</p>
<p class="since">Since: <a class="link" href="api-index-3.4.html" title="Index of new symbols in 3.4">3.4</a></p>
</div>
<hr>
<div class="refsect2">
<a name="EModuleClass"></a><h3>struct EModuleClass</h3>
<pre class="programlisting">struct EModuleClass {
GTypeModuleClass parent_class;
};
</pre>
</div>
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