1 files changed, 157 insertions, 0 deletions
diff --git a/sensors-applet/sensors-applet-plugins.c b/sensors-applet/sensors-applet-plugins.c
new file mode 100644
index 0000000..7dfad78
--- /dev/null
+++ b/sensors-applet/sensors-applet-plugins.c
@@ -0,0 +1,157 @@
+/*
+ * Copyright (C) 2005-2009 Alex Murray <[email protected]>
+ *
+ * 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.
+ *
+ * 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif /* HAVE_CONFIG_H */
+
+#ifdef HAVE_DLFCN_H
+#include <dlfcn.h>
+#endif /* HAVE_DLFCN_H */
+
+#include "sensors-applet-plugins.h"
+#include "sensors-applet-sensor.h"
+
+#define SENSORS_APPLET_USER_PLUGIN_DIR ".gnome2/sensors-applet/plugins"
+
+static void load_all_plugins(SensorsApplet *sensors_applet,
+ const gchar *path) 
+{
+ if (g_file_test(path, 
+ G_FILE_TEST_EXISTS | G_FILE_TEST_IS_DIR)) {
+ GDir *dir;
+ if ((dir = g_dir_open(path, 0, NULL)) != NULL) {
+ const gchar *file;
+ while ((file = g_dir_read_name(dir)) != NULL) {
+ // try and open plugin
+ gchar *plugin_file;
+ void *handle;
+ SensorsAppletPluginName name_fn;
+ SensorsAppletPluginInit init_fn;
+ SensorsAppletPluginGetSensorValue get_value_fn;
+
+ plugin_file = g_strdup_printf("%s/%s", path, file);
+ g_debug("found %s in plugin directory", plugin_file);
+ if ((handle = dlopen(plugin_file, RTLD_NOW)) != NULL) {
+ 
+ if ((name_fn = dlsym(handle, "sensors_applet_plugin_name")) != NULL &&
+ (init_fn = dlsym(handle, "sensors_applet_plugin_init")) != NULL &&
+ (get_value_fn = dlsym(handle, "sensors_applet_plugin_get_sensor_value")) != NULL) {
+ GList *sensors;
+ g_debug("calling init function for plugin file %s", plugin_file);
+ 
+ if ((sensors = init_fn()) != NULL) {
+ GList *sensor;
+ 
+ g_debug("registering plugin %s", name_fn());
+ g_hash_table_insert(sensors_applet->plugins,
+ g_strdup(name_fn()),
+ get_value_fn);
+ for (sensor = g_list_first(sensors);
+ sensor != NULL;
+ sensor = g_list_next(sensor)) {
+ SensorsAppletSensorInfo *sensor_info = (SensorsAppletSensorInfo *)sensor->data;
+ sensors_applet_add_sensor(sensors_applet,
+ sensor_info->path,
+ sensor_info->id, 
+ sensor_info->label,
+ name_fn(),
+ sensor_info->type,
+ sensor_info->enable,
+ sensor_info->low_value,
+ sensor_info->high_value,
+ FALSE, // ALARM OFF
+ "", // no alarm commands
+ "", // no alarm commands
+ 0, // alarm_timeout
+ sensor_info->multiplier,
+ sensor_info->offset,
+ sensor_info->icon,
+ sensor_info->graph_color);
+ 
+ g_free(sensor_info->path);
+ g_free(sensor_info->id);
+ g_free(sensor_info->label);
+ g_free(sensor_info->graph_color);
+ g_free(sensor_info);
+ }
+ g_list_free(sensors);
+ } else {
+ g_debug("plugin could not find any sensors");
+ if (g_hash_table_lookup(sensors_applet->required_plugins,
+ name_fn()))
+ {
+ g_debug("plugin is required - registering even though no sensors detected");
+ g_debug("registering plugin %s", name_fn());
+ g_hash_table_insert(sensors_applet->plugins,
+ g_strdup(name_fn()),
+ get_value_fn);
+ } else {
+ g_debug("unloading plugin");
+ }
+ }
+ 
+ 
+
+ } else {
+ g_debug("plugin file %s does not contain the required interface", plugin_file);
+ if (dlclose(handle) != 0) {
+ g_debug("error closing plugin file %s", plugin_file);
+ }
+ }
+ } else {
+ g_debug("Could not dlopen: %s: %s", plugin_file, dlerror());
+ }
+ g_free(plugin_file);
+ }
+ g_dir_close(dir);
+ } else {
+ g_debug("error opening plugin dir %s", path);
+ }
+ } else {
+ g_debug("path %s is not a valid directory", path);
+ }
+}
+
+void sensors_applet_plugins_load_all(SensorsApplet *sensors_applet) 
+{
+ const gchar *home;
+ 
+ if ((home = g_get_home_dir()) != NULL) {
+ gchar *path;
+ path = g_build_filename(home, 
+ SENSORS_APPLET_USER_PLUGIN_DIR,
+ NULL);
+ load_all_plugins(sensors_applet, path);
+ g_free(path);
+ } else {
+ g_warning("could not get home dir of user");
+ }
+ 
+ 
+ load_all_plugins(sensors_applet, SENSORS_APPLET_PLUGIN_DIR);
+}
+
+SensorsAppletPluginGetSensorValue sensors_applet_plugins_get_sensor_value_func(SensorsApplet *sensors_applet,
+ const gchar *plugin) 
+{
+ return g_hash_table_lookup(sensors_applet->plugins,
+ plugin);
+}
+
+