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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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<a href="#AnjutaCModule.synopsis" class="shortcut">Top</a>
                   | 
                  <a href="#AnjutaCModule.description" class="shortcut">Description</a>
                   | 
                  <a href="#AnjutaCModule.object-hierarchy" class="shortcut">Object Hierarchy</a>
                   | 
                  <a href="#AnjutaCModule.implemented-interfaces" class="shortcut">Implemented Interfaces</a>
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<div class="refentry">
<a name="AnjutaCModule"></a><div class="titlepage"></div>
<div class="refnamediv"><table width="100%"><tr>
<td valign="top">
<h2><span class="refentrytitle"><a name="AnjutaCModule.top_of_page"></a>AnjutaCModule</span></h2>
<p>AnjutaCModule — Anjuta C module</p>
</td>
<td valign="top" align="right"></td>
</tr></table></div>
<div class="refsynopsisdiv">
<a name="AnjutaCModule.synopsis"></a><h2>Synopsis</h2>
<pre class="synopsis">
#include &lt;libanjuta/anjuta-c-module.h&gt;

                    <a class="link" href="AnjutaCModule.html#AnjutaCModule-struct" title="AnjutaCModule">AnjutaCModule</a>;
                    <a class="link" href="AnjutaCModule.html#AnjutaCModuleClass" title="AnjutaCModuleClass">AnjutaCModuleClass</a>;
<a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>            <a class="link" href="AnjutaCModule.html#anjuta-c-module-get-last-error" title="anjuta_c_module_get_last_error ()">anjuta_c_module_get_last_error</a>      (<em class="parameter"><code><a class="link" href="AnjutaCModule.html" title="AnjutaCModule"><span class="type">AnjutaCModule</span></a> *module</code></em>,
                                                         <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Error-Reporting.html#GError"><span class="type">GError</span></a> **err</code></em>);
<a class="link" href="AnjutaCModule.html" title="AnjutaCModule"><span class="returnvalue">AnjutaCModule</span></a> *     <a class="link" href="AnjutaCModule.html#anjuta-c-module-new" title="anjuta_c_module_new ()">anjuta_c_module_new</a>                 (<em class="parameter"><code>const <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *path</code></em>,
                                                         <em class="parameter"><code>const <span class="type">char</span> *name</code></em>);
</pre>
</div>
<div class="refsect1">
<a name="AnjutaCModule.object-hierarchy"></a><h2>Object Hierarchy</h2>
<pre class="synopsis">
  <a href="http://library.gnome.org/devel/gobject/unstable/gobject-The-Base-Object-Type.html#GObject">GObject</a>
   +----<a href="http://library.gnome.org/devel/gobject/unstable/GTypeModule.html">GTypeModule</a>
         +----AnjutaCModule
</pre>
</div>
<div class="refsect1">
<a name="AnjutaCModule.implemented-interfaces"></a><h2>Implemented Interfaces</h2>
<p>
AnjutaCModule implements
 <a href="http://library.gnome.org/devel/gobject/unstable/GTypePlugin.html">GTypePlugin</a>.</p>
</div>
<div class="refsect1">
<a name="AnjutaCModule.description"></a><h2>Description</h2>
<p>
A module is the part of the plugin containing the code. For machine code
compiled from C sources by example, it is a shared library and contained in
a .so file on Linux. GLib provides a portable way to load dynamically such
code with <a href="http://library.gnome.org/devel/glib/unstable/glib-Dynamic-Loading-of-Modules.html#GModule"><span class="type">GModule</span></a> objects.
</p>
<p>
In GLib you can register a dynamic type which means that you links a GLib
type with a module. When the type is used for the first time the module is
loaded. When the type is not used anymore, the module is unloaded. Most of
the code necessary to do this is already written in GLib <a href="http://library.gnome.org/devel/gobject/unstable/GTypeModule.html"><span class="type">GTypeModule</span></a> object
except the load and unload function.
</p>
<p>
<a class="link" href="AnjutaCModule.html" title="AnjutaCModule"><span class="type">AnjutaCModule</span></a> is used only by a <a class="link" href="AnjutaCPluginFactory.html" title="AnjutaCPluginFactory"><span class="type">AnjutaCPluginFactory</span></a>. It derives from
<a href="http://library.gnome.org/devel/gobject/unstable/GTypeModule.html"><span class="type">GTypeModule</span></a> and implements the load and unload function using a <a href="http://library.gnome.org/devel/glib/unstable/glib-Dynamic-Loading-of-Modules.html#GModule"><span class="type">GModule</span></a>
object for a module written in C.
</p>
<p>
Anjuta plugin types are not registered before loading the module.
The loading of the module is done explicitly and types are registered just 
after in a function included in the plugin. This function is named
anjuta_glue_register_components and has a <a href="http://library.gnome.org/devel/gobject/unstable/GTypeModule.html"><span class="type">GTypeModule</span></a> as argument.
The plugin must registers at the least the plugin type dynamically. It can
register other types, but this is currently not used.
</p>
<p>
After loading a module one or more plugin objects will be created using the
name of the plugin type which has just been registered. The module
will stay loaded while at least one plugin object is present. If all
plugins objects are destroyed the unload function will be called and the
module can be unloaded and removed from memory.
</p>
<p>
It could be useful that some modules stay in memory even if there is no
object using it. A typical example is if some plugin code or some code of
a library used by a plugin registers a GLib type statically. GLib types can
be registered statically at run time but cannot be unregistered later.
The code (or rather the data used in the registration) must stay in the 
memory even if the type is not used. In order to avoid this, you must
register every type dynamically. You could have other situations where a
module cannot be unloaded. By default, Anjuta plugin modules are not
unloaded unless it is explicitly allowed.
</p>
</div>
<div class="refsect1">
<a name="AnjutaCModule.details"></a><h2>Details</h2>
<div class="refsect2">
<a name="AnjutaCModule-struct"></a><h3>AnjutaCModule</h3>
<pre class="programlisting">typedef struct _AnjutaCModule AnjutaCModule;</pre>
<p>
</p>
</div>
<hr>
<div class="refsect2">
<a name="AnjutaCModuleClass"></a><h3>AnjutaCModuleClass</h3>
<pre class="programlisting">typedef struct _AnjutaCModuleClass AnjutaCModuleClass;</pre>
<p>
</p>
</div>
<hr>
<div class="refsect2">
<a name="anjuta-c-module-get-last-error"></a><h3>anjuta_c_module_get_last_error ()</h3>
<pre class="programlisting"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>            anjuta_c_module_get_last_error      (<em class="parameter"><code><a class="link" href="AnjutaCModule.html" title="AnjutaCModule"><span class="type">AnjutaCModule</span></a> *module</code></em>,
                                                         <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Error-Reporting.html#GError"><span class="type">GError</span></a> **err</code></em>);</pre>
<p>
Receives the error that occured when the module was loaded
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>module</code></em> :</span></p></td>
<td>AnjutaCModule object</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>err</code></em> :</span></p></td>
<td>return location for a GError</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>TRUE if there was an Error, FALSE otherwise</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="anjuta-c-module-new"></a><h3>anjuta_c_module_new ()</h3>
<pre class="programlisting"><a class="link" href="AnjutaCModule.html" title="AnjutaCModule"><span class="returnvalue">AnjutaCModule</span></a> *     anjuta_c_module_new                 (<em class="parameter"><code>const <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *path</code></em>,
                                                         <em class="parameter"><code>const <span class="type">char</span> *name</code></em>);</pre>
<p>
Create a new <a class="link" href="AnjutaCModule.html" title="AnjutaCModule"><span class="type">AnjutaCModule</span></a> object.
</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>The full path of the module</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>name</code></em> :</span></p></td>
<td>The name of the module</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>a new <a class="link" href="AnjutaCModule.html" title="AnjutaCModule"><span class="type">AnjutaCModule</span></a> object.</td>
</tr>
</tbody>
</table></div>
</div>
</div>
<div class="refsect1">
<a name="AnjutaCModule.see-also"></a><h2>See Also</h2>
<a class="link" href="AnjutaCPluginFactory.html" title="AnjutaCPluginFactory"><span class="type">AnjutaCPluginFactory</span></a>
</div>
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