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/*
* heavily based on code from Gedit, which is based on code from Ephiphany
*
* Copyright (C) 2003 Marco Pesenti Gritti
* Copyright (C) 2003, 2004 Christian Persch
* Copyright (C) 2005 - Paolo Maggi
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* The Rhythmbox authors hereby grants permission for non-GPL compatible
* GStreamer plugins to be used and distributed together with GStreamer
* and Rhythmbox. This permission is above and beyond the permissions granted
* by the GPL license by which Rhythmbox is covered. If you modify this code
* you may extend this exception to your version of the code, but you are not
* obligated to do so. If you do not wish to do so, delete this exception
* statement from your version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301 USA.
*/
#include "config.h"
#include "rb-module.h"
#include "rb-debug.h"
#include <gmodule.h>
typedef struct _RBModuleClass RBModuleClass;
struct _RBModuleClass
{
GTypeModuleClass parent_class;
};
struct _RBModule
{
GTypeModule parent_instance;
GModule *library;
gchar *path;
gchar *name;
GType type;
};
typedef GType (*RBModuleRegisterFunc) (GTypeModule *);
static void rb_module_init (RBModule *action);
static void rb_module_class_init (RBModuleClass *class);
static GObjectClass *parent_class = NULL;
G_DEFINE_TYPE (RBModule, rb_module, G_TYPE_TYPE_MODULE)
static gboolean
rb_module_load (GTypeModule *gmodule)
{
RBModule *module = RB_MODULE (gmodule);
RBModuleRegisterFunc register_func;
rb_debug ("Loading %s", module->path);
module->library = g_module_open (module->path, 0);
if (module->library == NULL) {
g_warning ("%s", g_module_error ());
return FALSE;
}
/* extract symbols from the lib */
if (!g_module_symbol (module->library, "register_rb_plugin", (void *)®ister_func)) {
g_warning ("%s", g_module_error ());
g_module_close (module->library);
return FALSE;
}
g_assert (register_func);
module->type = register_func (gmodule);
if (module->type == 0) {
g_warning ("Invalid rb plugin contained by module %s", module->path);
return FALSE;
}
return TRUE;
}
static void
rb_module_unload (GTypeModule *gmodule)
{
RBModule *module = RB_MODULE (gmodule);
rb_debug ("Unloading %s", module->path);
g_module_close (module->library);
module->library = NULL;
module->type = 0;
}
const gchar *
rb_module_get_path (RBModule *module)
{
g_return_val_if_fail (RB_IS_MODULE (module), NULL);
return module->path;
}
GObject *
rb_module_new_object (RBModule *module)
{
GObject *obj;
rb_debug ("Creating object of type %s", g_type_name (module->type));
if (module->type == 0) {
return NULL;
}
obj = g_object_new (module->type,
"name", module->name,
NULL);
return obj;
}
static void
rb_module_init (RBModule *module)
{
rb_debug ("RBModule %p initialising", module);
}
static void
rb_module_finalize (GObject *object)
{
RBModule *module = RB_MODULE (object);
rb_debug ("RBModule %p finalising", module);
g_free (module->path);
G_OBJECT_CLASS (parent_class)->finalize (object);
}
static void
rb_module_class_init (RBModuleClass *class)
{
GObjectClass *object_class = G_OBJECT_CLASS (class);
GTypeModuleClass *module_class = G_TYPE_MODULE_CLASS (class);
parent_class = (GObjectClass *) g_type_class_peek_parent (class);
object_class->finalize = rb_module_finalize;
module_class->load = rb_module_load;
module_class->unload = rb_module_unload;
}
RBModule *
rb_module_new (const gchar *path, const char *module)
{
RBModule *result;
if (path == NULL || path[0] == '\0') {
return NULL;
}
result = g_object_new (RB_TYPE_MODULE, NULL);
g_type_module_set_name (G_TYPE_MODULE (result), path);
result->path = g_strdup (path);
result->name = g_strdup (module);
return result;
}
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