[tracker] libtracker-data: Port TrackerDBInterfaceSqlite to GTask

[Carlos Garnacho <carlosg src gnome org>]

commit 2974014057a9ef2317aeada67bf99bf58e4df826
Author: Carlos Garnacho <carlosg gnome org>
Date:   Wed Nov 25 22:51:27 2015 +0100

    libtracker-data: Port TrackerDBInterfaceSqlite to GTask

 src/libtracker-data/tracker-db-interface-sqlite.c |   26 +++++++++-----------
 1 files changed, 12 insertions(+), 14 deletions(-)
---
diff --git a/src/libtracker-data/tracker-db-interface-sqlite.c 
b/src/libtracker-data/tracker-db-interface-sqlite.c
index b7d0f83..04932a6 100644
--- a/src/libtracker-data/tracker-db-interface-sqlite.c
+++ b/src/libtracker-data/tracker-db-interface-sqlite.c
@@ -2138,21 +2138,22 @@ tracker_db_cursor_get_property (GObject    *object,
 }
 
 static void
-tracker_db_cursor_iter_next_thread (GSimpleAsyncResult *res,
-                                    GObject            *object,
-                                    GCancellable       *cancellable)
+tracker_db_cursor_iter_next_thread (GTask        *task,
+                                    gpointer      object,
+                                    gpointer      task_data,
+                                    GCancellable *cancellable)
 {
        /* run in thread */
 
-       TrackerDBCursor *cursor = TRACKER_DB_CURSOR (object);
+       TrackerDBCursor *cursor = object;
        GError *error = NULL;
        gboolean result;
 
        result = db_cursor_iter_next (cursor, cancellable, &error);
        if (error) {
-               g_simple_async_result_set_from_error (res, error);
+               g_task_return_error (task, error);
        } else {
-               g_simple_async_result_set_op_res_gboolean (res, result);
+               g_task_return_boolean (task, result);
        }
 }
 
@@ -2162,11 +2163,11 @@ tracker_db_cursor_iter_next_async (TrackerDBCursor     *cursor,
                                    GAsyncReadyCallback  callback,
                                    gpointer             user_data)
 {
-       GSimpleAsyncResult *res;
+       GTask *task;
 
-       res = g_simple_async_result_new (G_OBJECT (cursor), callback, user_data, 
tracker_db_cursor_iter_next_async);
-       g_simple_async_result_run_in_thread (res, tracker_db_cursor_iter_next_thread, 0, cancellable);
-       g_object_unref (res);
+       task = g_task_new (G_OBJECT (cursor), cancellable, callback, user_data);
+       g_task_run_in_thread (task, tracker_db_cursor_iter_next_thread);
+       g_object_unref (task);
 }
 
 static gboolean
@@ -2174,10 +2175,7 @@ tracker_db_cursor_iter_next_finish (TrackerDBCursor  *cursor,
                                     GAsyncResult     *res,
                                     GError          **error)
 {
-       if (g_simple_async_result_propagate_error (G_SIMPLE_ASYNC_RESULT (res), error)) {
-               return FALSE;
-       }
-       return g_simple_async_result_get_op_res_gboolean (G_SIMPLE_ASYNC_RESULT (res));
+       return g_task_propagate_boolean (G_TASK (res), error);
 }
 
 static void