[gnome-settings-daemon/benzea/no-tz-cache: 5/6] datetime: Load Olson DB on the fly instead of caching it

[Benjamin Berg <bberg src gnome org>]

commit d4da13ac58bab1b5bef69c6d2600d03d63c81d93
Author: Benjamin Berg <bberg redhat com>
Date:   Sat Apr 25 23:20:30 2020 +0200

    datetime: Load Olson DB on the fly instead of caching it
    
    We need the database only quite irregularly (i.e. when the location
    change). Just load the database on the fly when we need it, and discard
    it afterwards to free up the memory again.
    
    See also: !168

 plugins/datetime/gsd-timezone-monitor.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)
---
diff --git a/plugins/datetime/gsd-timezone-monitor.c b/plugins/datetime/gsd-timezone-monitor.c
index b8ed108c..a6e8a48d 100644
--- a/plugins/datetime/gsd-timezone-monitor.c
+++ b/plugins/datetime/gsd-timezone-monitor.c
@@ -49,7 +49,6 @@ typedef struct
         GClueSimple *geoclue_simple;
         GCancellable *geoclue_cancellable;
 
-        TzDB *tzdb;
         gchar *current_timezone;
 
         GSettings *location_settings;
@@ -175,15 +174,17 @@ find_timezone (GsdTimezoneMonitor *self,
                GeocodeLocation    *location,
                const gchar        *country_code)
 {
+        TzDB *tzdb;
         gchar *res;
         GList *filtered;
         GList *weather_locations;
         GList *locations;
-        GsdTimezoneMonitorPrivate *priv = gsd_timezone_monitor_get_instance_private (self);
         TzLocation *closest_tz_location;
 
+        tzdb = tz_load_db ();
+
         /* First load locations from Olson DB */
-        locations = ptr_array_to_list (tz_get_locations (priv->tzdb));
+        locations = ptr_array_to_list (tz_get_locations (tzdb));
         g_return_val_if_fail (locations != NULL, NULL);
 
         /* ... and then add libgweather's locations as well */
@@ -208,6 +209,7 @@ find_timezone (GsdTimezoneMonitor *self,
 
         g_list_free (locations);
         g_list_free_full (weather_locations, (GDestroyNotify) tz_location_free);
+        tz_db_free (tzdb);
 
         return res;
 }
@@ -391,7 +393,6 @@ gsd_timezone_monitor_finalize (GObject *obj)
         g_clear_object (&priv->dtm);
         g_clear_object (&priv->permission);
         g_clear_pointer (&priv->current_timezone, g_free);
-        g_clear_pointer (&priv->tzdb, tz_db_free);
 
         g_clear_object (&priv->location_settings);
 
@@ -463,7 +464,6 @@ gsd_timezone_monitor_init (GsdTimezoneMonitor *self)
         }
 
         priv->current_timezone = timedate1_dup_timezone (priv->dtm);
-        priv->tzdb = tz_load_db ();
 
         priv->location_settings = g_settings_new ("org.gnome.system.location");
         g_signal_connect_swapped (priv->location_settings, "changed::enabled",