[gcr/wip/nielsdg/initial-gtask: 1/16] gck-slot: Port from GSimpleAsyncResult to GTask

[Niels De Graef <nielsdg src gnome org>]

commit 0af8ea1ffea4e1191a3e1f7e6ed2a2360dc122b8
Author: Niels De Graef <nielsdegraef gmail com>
Date:   Sat Dec 21 18:46:53 2019 +0100

    gck-slot: Port from GSimpleAsyncResult to GTask
    
    `GSimpleAsyncResult` is deprecated in favor of `GTask`.

 gck/gck-slot.c | 32 ++++++++++++--------------------
 1 file changed, 12 insertions(+), 20 deletions(-)
---
diff --git a/gck/gck-slot.c b/gck/gck-slot.c
index 6eb2a16..03a686c 100644
--- a/gck/gck-slot.c
+++ b/gck/gck-slot.c
@@ -1025,18 +1025,17 @@ on_open_session_complete (GObject *source,
                           GAsyncResult *result,
                           gpointer user_data)
 {
-       GSimpleAsyncResult *res = G_SIMPLE_ASYNC_RESULT (user_data);
+       GTask *task = G_TASK (user_data);
        GError *error = NULL;
        GObject *session;
 
        session = g_async_initable_new_finish (G_ASYNC_INITABLE (source), result, &error);
        if (session != NULL)
-               g_simple_async_result_set_op_res_gpointer (res, session, g_object_unref);
+               g_task_return_pointer (task, session, g_object_unref);
        else
-               g_simple_async_result_take_error (res, error);
+               g_task_return_error (task, g_steal_pointer (&error));
 
-       g_simple_async_result_complete (res);
-       g_object_unref (res);
+       g_clear_object (&task);
 }
 
 /**
@@ -1046,7 +1045,7 @@ on_open_session_complete (GObject *source,
  * @pkcs11_flags: Additional raw PKCS\#11 flags.
  * @app_data: Application data for notification callback.
  * @notify: PKCS\#11 notification callback.
- * @cancellable: Optional cancellation object, or NULL.
+ * @cancellable: (nullable): Optional cancellation object, or NULL.
  * @callback: Called when the operation completes.
  * @user_data: Data to pass to the callback.
  *
@@ -1065,24 +1064,24 @@ gck_slot_open_session_full_async (GckSlot *self,
                                   GAsyncReadyCallback callback,
                                   gpointer user_data)
 {
-       GSimpleAsyncResult *res;
+       GTask *task;
 
        g_return_if_fail (GCK_IS_SLOT (self));
        g_return_if_fail (cancellable == NULL || G_IS_CANCELLABLE (cancellable));
 
-       res = g_simple_async_result_new (G_OBJECT (self), callback, user_data,
-                                        gck_slot_open_session_full_async);
+       task = g_task_new (self, cancellable, callback, user_data);
+       g_task_set_source_tag (task, gck_slot_open_session_full_async);
 
        g_async_initable_new_async (GCK_TYPE_SESSION, G_PRIORITY_DEFAULT,
                                    cancellable, on_open_session_complete,
-                                   g_object_ref (res),
+                                   g_steal_pointer (&task),
                                    "options", options,
                                    "slot", self,
                                    "opening-flags", pkcs11_flags,
                                    "app-data", app_data,
                                    NULL);
 
-       g_object_unref (res);
+       g_clear_object (&task);
 }
 
 /**
@@ -1099,18 +1098,11 @@ gck_slot_open_session_full_async (GckSlot *self,
 GckSession *
 gck_slot_open_session_finish (GckSlot *self, GAsyncResult *result, GError **error)
 {
-       GSimpleAsyncResult *res;
-
        g_return_val_if_fail (GCK_IS_SLOT (self), NULL);
        g_return_val_if_fail (error == NULL || *error == NULL, NULL);
-       g_return_val_if_fail (g_simple_async_result_is_valid (result, G_OBJECT (self),
-                             gck_slot_open_session_full_async), NULL);
-
-       res = G_SIMPLE_ASYNC_RESULT (result);
-       if (g_simple_async_result_propagate_error (res, error))
-               return NULL;
+       g_return_val_if_fail (g_task_is_valid (result, self), NULL);
 
-       return g_object_ref (g_simple_async_result_get_op_res_gpointer (res));
+       return g_task_propagate_pointer (G_TASK (result), error);
 }
 
 /**