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-rw-r--r--src/mm-plugin-manager.c179
-rw-r--r--src/mm-plugin-manager.h2
2 files changed, 179 insertions, 2 deletions
diff --git a/src/mm-plugin-manager.c b/src/mm-plugin-manager.c
index e007887b..79827577 100644
--- a/src/mm-plugin-manager.c
+++ b/src/mm-plugin-manager.c
@@ -10,15 +10,21 @@
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details:
*
+ * Copyright (C) 2008 - 2009 Novell, Inc.
+ * Copyright (C) 2009 - 2011 Red Hat, Inc.
* Copyright (C) 2011 Aleksander Morgado <aleksander@gnu.org>
*/
#include <string.h>
#include <ctype.h>
+#include <gmodule.h>
#include <gio/gio.h>
#include "mm-plugin-manager.h"
+#include "mm-plugin.h"
+#include "mm-errors.h"
+#include "mm-log.h"
static void initable_iface_init (GInitableIface *iface);
@@ -27,9 +33,171 @@ G_DEFINE_TYPE_EXTENDED (MMPluginManager, mm_plugin_manager, G_TYPE_OBJECT, 0,
initable_iface_init));
struct _MMPluginManagerPrivate {
- gpointer dummy;
+ /* The list of plugins. It is loaded once when the program starts, and the
+ * list is NOT expected to change after that. */
+ GSList *plugins;
};
+static MMPlugin *
+load_plugin (const gchar *path)
+{
+ MMPlugin *plugin = NULL;
+ GModule *module;
+ MMPluginCreateFunc plugin_create_func;
+ gint *major_plugin_version;
+ gint *minor_plugin_version;
+
+ module = g_module_open (path, G_MODULE_BIND_LAZY);
+ if (!module) {
+ g_warning ("Could not load plugin %s: %s", path, g_module_error ());
+ return NULL;
+ }
+
+ if (!g_module_symbol (module, "mm_plugin_major_version", (gpointer *) &major_plugin_version)) {
+ g_warning ("Could not load plugin %s: Missing major version info", path);
+ goto out;
+ }
+
+ if (*major_plugin_version != MM_PLUGIN_MAJOR_VERSION) {
+ g_warning ("Could not load plugin %s: Plugin major version %d, %d is required",
+ path, *major_plugin_version, MM_PLUGIN_MAJOR_VERSION);
+ goto out;
+ }
+
+ if (!g_module_symbol (module, "mm_plugin_minor_version", (gpointer *) &minor_plugin_version)) {
+ g_warning ("Could not load plugin %s: Missing minor version info", path);
+ goto out;
+ }
+
+ if (*minor_plugin_version != MM_PLUGIN_MINOR_VERSION) {
+ g_warning ("Could not load plugin %s: Plugin minor version %d, %d is required",
+ path, *minor_plugin_version, MM_PLUGIN_MINOR_VERSION);
+ goto out;
+ }
+
+ if (!g_module_symbol (module, "mm_plugin_create", (gpointer *) &plugin_create_func)) {
+ g_warning ("Could not load plugin %s: %s", path, g_module_error ());
+ goto out;
+ }
+
+ plugin = (*plugin_create_func) ();
+ if (plugin) {
+ g_object_weak_ref (G_OBJECT (plugin), (GWeakNotify) g_module_close, module);
+ } else
+ mm_warn ("Could not load plugin %s: initialization failed", path);
+
+ out:
+ if (!plugin)
+ g_module_close (module);
+
+ return plugin;
+}
+
+static gint
+compare_plugins (const MMPlugin *plugin_a,
+ const MMPlugin *plugin_b)
+{
+ /* The order of the plugins in the list is the same order used to check
+ * whether the plugin can manage a given modem:
+ * - First, modems that will check vendor ID from udev.
+ * - Then, modems that report to be sorted last (those which will check
+ * vendor ID also from the probed ones..
+ */
+ if (mm_plugin_get_sort_last (plugin_a) &&
+ !mm_plugin_get_sort_last (plugin_b))
+ return 1;
+ if (!mm_plugin_get_sort_last (plugin_a) &&
+ mm_plugin_get_sort_last (plugin_b))
+ return -1;
+ return 0;
+}
+
+static void
+found_plugin (MMPlugin *plugin)
+{
+ mm_info ("Loaded plugin '%s'", mm_plugin_get_name (plugin));
+}
+
+static gboolean
+load_plugins (MMPluginManager *self,
+ GError **error)
+{
+ GDir *dir;
+ const gchar *fname;
+ MMPlugin *generic_plugin = NULL;
+
+ if (!g_module_supported ()) {
+ g_set_error (error,
+ MM_CORE_ERROR,
+ MM_CORE_ERROR_UNSUPPORTED,
+ "GModules are not supported on your platform!");
+ return FALSE;
+ }
+
+ mm_dbg ("Looking for plugins in '%s'", PLUGINDIR);
+ dir = g_dir_open (PLUGINDIR, 0, NULL);
+ if (!dir) {
+ g_set_error (error,
+ MM_CORE_ERROR,
+ MM_CORE_ERROR_NO_PLUGINS,
+ "Plugin directory '%s' not found",
+ PLUGINDIR);
+ return FALSE;
+ }
+
+ while ((fname = g_dir_read_name (dir)) != NULL) {
+ gchar *path;
+ MMPlugin *plugin;
+
+ if (!g_str_has_suffix (fname, G_MODULE_SUFFIX))
+ continue;
+
+ path = g_module_build_path (PLUGINDIR, fname);
+ plugin = load_plugin (path);
+ g_free (path);
+
+ if (plugin) {
+ if (g_str_equal (mm_plugin_get_name (plugin),
+ MM_PLUGIN_GENERIC_NAME))
+ generic_plugin = plugin;
+ else
+ self->priv->plugins = g_slist_append (self->priv->plugins,
+ plugin);
+ }
+ }
+
+ /* Sort last plugins that request it */
+ self->priv->plugins = g_slist_sort (self->priv->plugins,
+ (GCompareFunc)compare_plugins);
+
+ /* Make sure the generic plugin is last */
+ if (generic_plugin)
+ self->priv->plugins = g_slist_append (self->priv->plugins,
+ generic_plugin);
+
+ /* Treat as error if we don't find any plugin */
+ if (!self->priv->plugins) {
+ g_set_error (error,
+ MM_CORE_ERROR,
+ MM_CORE_ERROR_NO_PLUGINS,
+ "No plugins found in plugin directory '%s'",
+ PLUGINDIR);
+ g_dir_close (dir);
+ return FALSE;
+ }
+
+ /* Now report about all the found plugins, in the same order they will be
+ * used while checking support */
+ g_slist_foreach (self->priv->plugins, (GFunc)found_plugin, NULL);
+
+ mm_info ("Successfully loaded %u plugins",
+ g_slist_length (self->priv->plugins));
+
+ g_dir_close (dir);
+
+ return TRUE;
+}
+
MMPluginManager *
mm_plugin_manager_new (GError **error)
{
@@ -53,12 +221,19 @@ initable_init (GInitable *initable,
GCancellable *cancellable,
GError **error)
{
- return TRUE;
+ /* Load the list of plugins */
+ return load_plugins (MM_PLUGIN_MANAGER (initable), error);
}
static void
finalize (GObject *object)
{
+ MMPluginManager *self = MM_PLUGIN_MANAGER (object);
+
+ /* Cleanup list of plugins */
+ g_slist_foreach (self->priv->plugins, (GFunc)g_object_unref, NULL);
+ g_slist_free (self->priv->plugins);
+
G_OBJECT_CLASS (mm_plugin_manager_parent_class)->finalize (object);
}
diff --git a/src/mm-plugin-manager.h b/src/mm-plugin-manager.h
index 906c7ef3..001fd34b 100644
--- a/src/mm-plugin-manager.h
+++ b/src/mm-plugin-manager.h
@@ -10,6 +10,8 @@
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details:
*
+ * Copyright (C) 2008 - 2009 Novell, Inc.
+ * Copyright (C) 2009 - 2011 Red Hat, Inc.
* Copyright (C) 2011 Aleksander Morgado <aleksander@gnu.org>
*/
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-06-07 23:19:24 +0000