dev/vala/gmodule.live.gnome/loader.vala

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2012-11-13 11:39:49 +04:00
class MyModule : TypeModule
{
[CCode (has_target = false)]
private delegate Type PluginInitFunc(TypeModule module);
private GLib.Module module = null;
private string name = null;
public MyModule(string name)
{
this.name = name;
}
public override bool load()
{
string path = Module.build_path(null, name);
module = Module.open(path, GLib.ModuleFlags.BIND_LAZY);
if(null == module) {
error("Module not found");
}
void * plugin_init = null;
if(! module.symbol("plugin_init", out plugin_init)) {
error("No such symbol");
}
((PluginInitFunc) plugin_init)(this);
return true;
}
public override void unload()
{
module = null;
message("Library unloaded");
}
}
// Never unref instance of GTypeModule
// http://www.lanedo.com/~mitch/module-system-talk-guadec-2006/Module-System-Talk-Guadec-2006.pdf
static TypeModule module = null;
int main()
{
module = new MyModule("plugin");
module.load();
var o = GLib.Object.new(Type.from_name("MyClass"));
// free last instance, plugin unload
o = null;
return 0;
}