[libsecret/wip/nielsdg/gtask-secret-collection: 1/2] collection: Port to GTask




commit 1f3a3d6e6bb8c190fc61e0ba0d368a94a1bcb581
Author: Niels De Graef <nielsdegraef gmail com>
Date:   Sat Dec 21 14:41:03 2019 +0100

    collection: Port to GTask
    
    `GSimpleAsyncResult` is deprecated in favor of `GTask`.

 libsecret/secret-collection.c | 467 ++++++++++++++++++++----------------------
 1 file changed, 222 insertions(+), 245 deletions(-)
---
diff --git a/libsecret/secret-collection.c b/libsecret/secret-collection.c
index 0d800bd..4e27422 100644
--- a/libsecret/secret-collection.c
+++ b/libsecret/secret-collection.c
@@ -569,50 +569,39 @@ secret_collection_initable_iface (GInitableIface *iface)
        iface->init = secret_collection_initable_init;
 }
 
-typedef struct {
-       GCancellable *cancellable;
-} InitClosure;
-
-static void
-init_closure_free (gpointer data)
-{
-       InitClosure *closure = data;
-       g_clear_object (&closure->cancellable);
-       g_slice_free (InitClosure, closure);
-}
-
 static void
 on_ensure_items (GObject *source,
                  GAsyncResult *result,
                  gpointer user_data)
 {
-       GSimpleAsyncResult *res = G_SIMPLE_ASYNC_RESULT (user_data);
+       GTask *task = G_TASK (user_data);
        SecretCollection *self = SECRET_COLLECTION (source);
        GError *error = NULL;
 
        if (!secret_collection_load_items_finish (self, result, &error))
-               g_simple_async_result_take_error (res, error);
+               g_task_return_error (task, g_steal_pointer (&error));
+       else
+               g_task_return_pointer (task, self, g_object_unref);
 
-       g_simple_async_result_complete (res);
-       g_object_unref (res);
+       g_clear_object (&task);
 }
 
 static void
 collection_ensure_for_flags_async (SecretCollection *self,
                                    SecretCollectionFlags flags,
-                                   GCancellable *cancellable,
-                                   GSimpleAsyncResult *async)
+                                   GTask *task)
 {
+       GCancellable *cancellable = g_task_get_cancellable (task);
        SecretCollectionFlags want_flags;
 
        want_flags = flags & ~secret_collection_get_flags (self);
 
        if (want_flags & SECRET_COLLECTION_LOAD_ITEMS) {
                secret_collection_load_items (self, cancellable,
-                                             on_ensure_items, g_object_ref (async));
+                                             on_ensure_items, g_object_ref (task));
 
        } else {
-               g_simple_async_result_complete (async);
+               g_task_return_pointer (task, self, g_object_unref);
        }
 }
 
@@ -621,25 +610,21 @@ on_init_service (GObject *source,
                  GAsyncResult *result,
                  gpointer user_data)
 {
-       GSimpleAsyncResult *async = G_SIMPLE_ASYNC_RESULT (user_data);
-       SecretCollection *self = SECRET_COLLECTION (g_async_result_get_source_object (user_data));
-       InitClosure *init = g_simple_async_result_get_op_res_gpointer (async);
+       GTask *task = G_TASK (user_data);
+       SecretCollection *self = SECRET_COLLECTION (g_task_get_source_object (task));
        SecretService *service;
        GError *error = NULL;
 
        service = secret_service_get_finish (result, &error);
        if (error == NULL) {
-               collection_take_service (self, service);
-               collection_ensure_for_flags_async (self, self->pv->init_flags,
-                                                  init->cancellable, async);
+               collection_take_service (self, g_steal_pointer (&service));
+               collection_ensure_for_flags_async (self, self->pv->init_flags, task);
 
        } else {
-               g_simple_async_result_take_error (async, error);
-               g_simple_async_result_complete (async);
+               g_task_return_error (task, g_steal_pointer (&error));
        }
 
-       g_object_unref (self);
-       g_object_unref (async);
+       g_clear_object (&task);
 }
 
 static void
@@ -647,33 +632,31 @@ on_init_base (GObject *source,
               GAsyncResult *result,
               gpointer user_data)
 {
-       GSimpleAsyncResult *res = G_SIMPLE_ASYNC_RESULT (user_data);
+       GTask *task = G_TASK (user_data);
+       GCancellable *cancellable = g_task_get_cancellable (task);
        SecretCollection *self = SECRET_COLLECTION (source);
-       InitClosure *init = g_simple_async_result_get_op_res_gpointer (res);
        GDBusProxy *proxy = G_DBUS_PROXY (self);
        GError *error = NULL;
 
        if (!secret_collection_async_initable_parent_iface->init_finish (G_ASYNC_INITABLE (self),
                                                                         result, &error)) {
-               g_simple_async_result_take_error (res, error);
-               g_simple_async_result_complete (res);
+               g_task_return_error (task, g_steal_pointer (&error));
 
        } else if (!_secret_util_have_cached_properties (proxy)) {
-               g_simple_async_result_set_error (res, G_DBUS_ERROR, G_DBUS_ERROR_UNKNOWN_METHOD,
-                                                "No such secret collection at path: %s",
-                                                g_dbus_proxy_get_object_path (proxy));
-               g_simple_async_result_complete (res);
+               g_task_return_new_error (task, G_DBUS_ERROR,
+                                        G_DBUS_ERROR_UNKNOWN_METHOD,
+                                        "No such secret collection at path: %s",
+                                        g_dbus_proxy_get_object_path (proxy));
 
        } else if (self->pv->service == NULL) {
-               secret_service_get (SECRET_SERVICE_NONE, init->cancellable,
-                                   on_init_service, g_object_ref (res));
+               secret_service_get (SECRET_SERVICE_NONE, cancellable,
+                                   on_init_service, g_steal_pointer (&task));
 
        } else {
-               collection_ensure_for_flags_async (self, self->pv->init_flags,
-                                                  init->cancellable, res);
+               collection_ensure_for_flags_async (self, self->pv->init_flags, task);
        }
 
-       g_object_unref (res);
+       g_clear_object (&task);
 }
 
 static void
@@ -683,21 +666,18 @@ secret_collection_async_initable_init_async (GAsyncInitable *initable,
                                              GAsyncReadyCallback callback,
                                              gpointer user_data)
 {
-       GSimpleAsyncResult *res;
-       InitClosure *closure;
+       GTask *task;
 
-       res = g_simple_async_result_new (G_OBJECT (initable), callback, user_data,
-                                        secret_collection_async_initable_init_async);
-       closure = g_slice_new0 (InitClosure);
-       closure->cancellable = cancellable ? g_object_ref (cancellable) : NULL;
-       g_simple_async_result_set_op_res_gpointer (res, closure, init_closure_free);
+       task = g_task_new (initable, cancellable, callback, user_data);
+       g_task_set_source_tag (task, secret_collection_async_initable_init_async);
 
-       secret_collection_async_initable_parent_iface->init_async (initable, io_priority,
+       secret_collection_async_initable_parent_iface->init_async (initable,
+                                                                  io_priority,
                                                                   cancellable,
                                                                   on_init_base,
-                                                                  g_object_ref (res));
+                                                                  g_steal_pointer (&task));
 
-       g_object_unref (res);
+       g_clear_object (&task);
 }
 
 static gboolean
@@ -707,11 +687,13 @@ secret_collection_async_initable_init_finish (GAsyncInitable *initable,
 {
        SecretCollection *self = SECRET_COLLECTION (initable);
 
-       g_return_val_if_fail (g_simple_async_result_is_valid (result, G_OBJECT (initable),
-                             secret_collection_async_initable_init_async), FALSE);
+       g_return_val_if_fail (g_task_is_valid (result, initable), FALSE);
 
-       if (_secret_util_propagate_error (G_SIMPLE_ASYNC_RESULT (result), error))
+       // XXX maybe we still need to ref?
+       if (!g_task_propagate_pointer (G_TASK (result), error)) {
+               _secret_util_strip_remote_error (error);
                return FALSE;
+       }
 
        self->pv->constructing = FALSE;
        return TRUE;
@@ -727,7 +709,6 @@ secret_collection_async_initable_iface (GAsyncInitableIface *iface)
 }
 
 typedef struct {
-       GCancellable *cancellable;
        GHashTable *items;
        gint items_loading;
 } ItemsClosure;
@@ -736,7 +717,6 @@ static void
 items_closure_free (gpointer data)
 {
        ItemsClosure *closure = data;
-       g_clear_object (&closure->cancellable);
        g_hash_table_unref (closure->items);
        g_slice_free (ItemsClosure, closure);
 }
@@ -746,9 +726,9 @@ on_load_item (GObject *source,
               GAsyncResult *result,
               gpointer user_data)
 {
-       GSimpleAsyncResult *res = G_SIMPLE_ASYNC_RESULT (user_data);
-       ItemsClosure *closure = g_simple_async_result_get_op_res_gpointer (res);
-       SecretCollection *self = SECRET_COLLECTION (g_async_result_get_source_object (user_data));
+       GTask *task = G_TASK (user_data);
+       ItemsClosure *closure = g_task_get_task_data (task);
+       SecretCollection *self = SECRET_COLLECTION (g_task_get_source_object (task));
        const gchar *path;
        GError *error = NULL;
        SecretItem *item;
@@ -757,8 +737,11 @@ on_load_item (GObject *source,
 
        item = secret_item_new_for_dbus_path_finish (result, &error);
 
-       if (error != NULL)
-               g_simple_async_result_take_error (res, error);
+       if (error != NULL) {
+               g_task_return_error (task, g_steal_pointer (&error));
+               g_clear_object (&task);
+               return;
+       }
 
        if (item != NULL) {
                path = g_dbus_proxy_get_object_path (G_DBUS_PROXY (item));
@@ -767,11 +750,10 @@ on_load_item (GObject *source,
 
        if (closure->items_loading == 0) {
                collection_update_items (self, closure->items);
-               g_simple_async_result_complete_in_idle (res);
+               g_task_return_boolean (task, TRUE);
        }
 
-       g_object_unref (self);
-       g_object_unref (res);
+       g_clear_object (&task);
 }
 
 /**
@@ -798,7 +780,7 @@ secret_collection_load_items (SecretCollection *self,
 {
        ItemsClosure *closure;
        SecretItem *item;
-       GSimpleAsyncResult *res;
+       GTask *task;
        const gchar *path;
        GVariant *paths;
        GVariantIter iter;
@@ -809,12 +791,11 @@ secret_collection_load_items (SecretCollection *self,
        paths = g_dbus_proxy_get_cached_property (G_DBUS_PROXY (self), "Items");
        g_return_if_fail (paths != NULL);
 
-       res = g_simple_async_result_new (G_OBJECT (self), callback, user_data,
-                                        secret_collection_load_items);
+       task = g_task_new (self, cancellable, callback, user_data);
+       g_task_set_source_tag (task, secret_collection_load_items);
        closure = g_slice_new0 (ItemsClosure);
-       closure->cancellable = cancellable ? g_object_ref (cancellable) : NULL;
        closure->items = items_table_new ();
-       g_simple_async_result_set_op_res_gpointer (res, closure, items_closure_free);
+       g_task_set_task_data (task, closure, items_closure_free);
 
        g_variant_iter_init (&iter, paths);
        while (g_variant_iter_loop (&iter, "&o", &path)) {
@@ -822,8 +803,10 @@ secret_collection_load_items (SecretCollection *self,
 
                /* No such collection yet create a new one */
                if (item == NULL) {
-                       secret_item_new_for_dbus_path (self->pv->service, path, SECRET_ITEM_NONE,
-                                                      cancellable, on_load_item, g_object_ref (res));
+                       secret_item_new_for_dbus_path (self->pv->service, path,
+                                                      SECRET_ITEM_NONE,
+                                                      cancellable, on_load_item,
+                                                      g_object_ref (task));
                        closure->items_loading++;
 
                } else {
@@ -833,11 +816,11 @@ secret_collection_load_items (SecretCollection *self,
 
        if (closure->items_loading == 0) {
                collection_update_items (self, closure->items);
-               g_simple_async_result_complete_in_idle (res);
+               g_task_return_boolean (task, TRUE);
        }
 
        g_variant_unref (paths);
-       g_object_unref (res);
+       g_clear_object (&task);
 }
 
 /**
@@ -858,11 +841,12 @@ secret_collection_load_items_finish (SecretCollection *self,
 {
        g_return_val_if_fail (SECRET_IS_COLLECTION (self), FALSE);
        g_return_val_if_fail (error == NULL || *error == NULL, FALSE);
-       g_return_val_if_fail (g_simple_async_result_is_valid (result, G_OBJECT (self),
-                             secret_collection_load_items), FALSE);
+       g_return_val_if_fail (g_task_is_valid (result, self), FALSE);
 
-       if (_secret_util_propagate_error (G_SIMPLE_ASYNC_RESULT (result), error))
+       if (!g_task_propagate_boolean (G_TASK (result), error)) {
+               _secret_util_strip_remote_error (error);
                return FALSE;
+       }
 
        return TRUE;
 }
@@ -953,7 +937,6 @@ secret_collection_refresh (SecretCollection *self)
 }
 
 typedef struct {
-       GCancellable *cancellable;
        SecretCollection *collection;
        GHashTable *properties;
        gchar *alias;
@@ -964,7 +947,6 @@ static void
 create_closure_free (gpointer data)
 {
        CreateClosure *closure = data;
-       g_clear_object (&closure->cancellable);
        g_clear_object (&closure->collection);
        g_hash_table_unref (closure->properties);
        g_free (closure->alias);
@@ -976,16 +958,17 @@ on_create_collection (GObject *source,
                       GAsyncResult *result,
                       gpointer user_data)
 {
-       GSimpleAsyncResult *res = G_SIMPLE_ASYNC_RESULT (user_data);
-       CreateClosure *closure = g_simple_async_result_get_op_res_gpointer (res);
+       GTask *task = G_TASK (user_data);
+       SecretCollection *collection;
        GError *error = NULL;
 
-       closure->collection = secret_collection_new_for_dbus_path_finish (result, &error);
+       collection = secret_collection_new_for_dbus_path_finish (result, &error);
        if (error != NULL)
-               g_simple_async_result_take_error (res, error);
+               g_task_return_error (task, g_steal_pointer (&error));
+       else
+               g_task_return_pointer (task, collection, g_object_unref);
 
-       g_simple_async_result_complete (res);
-       g_object_unref (res);
+       g_clear_object (&task);
 }
 
 static void
@@ -993,8 +976,8 @@ on_create_path (GObject *source,
                 GAsyncResult *result,
                 gpointer user_data)
 {
-       GSimpleAsyncResult *res = G_SIMPLE_ASYNC_RESULT (user_data);
-       CreateClosure *closure = g_simple_async_result_get_op_res_gpointer (res);
+       GTask *task = G_TASK (user_data);
+       GCancellable *cancellable = g_task_get_cancellable (task);
        SecretService *service = SECRET_SERVICE (source);
        GError *error = NULL;
        gchar *path;
@@ -1002,15 +985,14 @@ on_create_path (GObject *source,
        path = secret_service_create_collection_dbus_path_finish (service, result, &error);
        if (error == NULL) {
                secret_collection_new_for_dbus_path (service, path, SECRET_COLLECTION_LOAD_ITEMS,
-                                                    closure->cancellable,
-                                                    on_create_collection, g_object_ref (res));
+                                                    cancellable, on_create_collection,
+                                                    g_steal_pointer (&task));
        } else {
-               g_simple_async_result_take_error (res, error);
-               g_simple_async_result_complete (res);
+               g_task_return_error (task, g_steal_pointer (&error));
        }
 
-       g_object_unref (res);
        g_free (path);
+       g_clear_object (&task);
 }
 
 static void
@@ -1018,8 +1000,9 @@ on_create_service (GObject *source,
                    GAsyncResult *result,
                    gpointer user_data)
 {
-       GSimpleAsyncResult *async = G_SIMPLE_ASYNC_RESULT (user_data);
-       CreateClosure *create = g_simple_async_result_get_op_res_gpointer (async);
+       GTask *task = G_TASK (user_data);
+       CreateClosure *create = g_task_get_task_data (task);
+       GCancellable *cancellable = g_task_get_cancellable (task);
        GError *error = NULL;
        SecretService *service;
 
@@ -1027,16 +1010,15 @@ on_create_service (GObject *source,
        if (error == NULL) {
                secret_service_create_collection_dbus_path (service, create->properties,
                                                            create->alias, create->flags,
-                                                           create->cancellable,
-                                                           on_create_path, g_object_ref (async));
+                                                           cancellable, on_create_path,
+                                                           g_steal_pointer (&task));
                g_object_unref (service);
 
        } else {
-               g_simple_async_result_take_error (async, error);
-               g_simple_async_result_complete (async);
+               g_task_return_error (task, g_steal_pointer (&error));
        }
 
-       g_object_unref (async);
+       g_clear_object (&task);
 }
 
 GHashTable *
@@ -1079,7 +1061,6 @@ _secret_collection_properties_new (const gchar *label)
  *
  * If @service is %NULL, then secret_service_get() will be called to get
  * the default #SecretService proxy.
- *
  */
 void
 secret_collection_create (SecretService *service,
@@ -1090,34 +1071,33 @@ secret_collection_create (SecretService *service,
                           GAsyncReadyCallback callback,
                           gpointer user_data)
 {
-       GSimpleAsyncResult *res;
+       GTask *task;
        CreateClosure *closure;
 
        g_return_if_fail (service == NULL || SECRET_IS_SERVICE (service));
        g_return_if_fail (label != NULL);
        g_return_if_fail (cancellable == NULL || G_IS_CANCELLABLE (cancellable));
 
-       res = g_simple_async_result_new (NULL, callback, user_data,
-                                        secret_collection_create);
+       task = g_task_new (NULL, cancellable, callback, user_data);
+       g_task_set_source_tag (task, secret_collection_create);
        closure = g_slice_new0 (CreateClosure);
-       closure->cancellable = cancellable ? g_object_ref (cancellable) : NULL;
        closure->properties = _secret_collection_properties_new (label);
        closure->alias = g_strdup (alias);
        closure->flags = flags;
-       g_simple_async_result_set_op_res_gpointer (res, closure, create_closure_free);
+       g_task_set_task_data (task, closure, create_closure_free);
 
        if (service == NULL) {
                secret_service_get (SECRET_SERVICE_NONE, cancellable,
-                                   on_create_service, g_object_ref (res));
+                                   on_create_service, g_steal_pointer (&task));
 
        } else {
                secret_service_create_collection_dbus_path (service, closure->properties,
                                                            closure->alias, closure->flags,
-                                                           closure->cancellable,
-                                                           on_create_path, g_object_ref (res));
+                                                           cancellable, on_create_path,
+                                                           g_steal_pointer (&task));
        }
 
-       g_object_unref (res);
+       g_clear_object (&task);
 }
 
 /**
@@ -1134,23 +1114,18 @@ SecretCollection *
 secret_collection_create_finish (GAsyncResult *result,
                                  GError **error)
 {
-       GSimpleAsyncResult *res;
-       CreateClosure *closure;
+       SecretCollection *collection;
 
-       g_return_val_if_fail (g_simple_async_result_is_valid (result, NULL,
-                             secret_collection_create), NULL);
+       g_return_val_if_fail (g_task_is_valid (result, NULL), NULL);
        g_return_val_if_fail (error == NULL || *error == NULL, NULL);
 
-       res = G_SIMPLE_ASYNC_RESULT (result);
-
-       if (_secret_util_propagate_error (res, error))
-               return NULL;
-
-       closure = g_simple_async_result_get_op_res_gpointer (res);
-       if (closure->collection == NULL)
+       collection = g_task_propagate_pointer (G_TASK (result), error);
+       if (!collection) {
+               _secret_util_strip_remote_error (error);
                return NULL;
+       }
 
-       return g_object_ref (closure->collection);
+       return collection;
 }
 
 /**
@@ -1229,7 +1204,6 @@ secret_collection_create_sync (SecretService *service,
 
 typedef struct {
        SecretCollection *collection;
-       GCancellable *cancellable;
        GHashTable *items;
        gchar **paths;
        guint loading;
@@ -1241,7 +1215,6 @@ search_closure_free (gpointer data)
 {
        SearchClosure *closure = data;
        g_object_unref (closure->collection);
-       g_clear_object (&closure->cancellable);
        g_hash_table_unref (closure->items);
        g_strfreev (closure->paths);
        g_slice_free (SearchClosure, closure);
@@ -1260,13 +1233,13 @@ on_search_secrets (GObject *source,
                    GAsyncResult *result,
                    gpointer user_data)
 {
-       GSimpleAsyncResult *async = G_SIMPLE_ASYNC_RESULT (user_data);
+       GTask *task = G_TASK (user_data);
 
        /* Note that we ignore any unlock failure */
        secret_item_load_secrets_finish (result, NULL);
 
-       g_simple_async_result_complete (async);
-       g_object_unref (async);
+       g_task_return_boolean (task, TRUE);
+       g_clear_object (&task);
 }
 
 static void
@@ -1274,8 +1247,9 @@ on_search_unlocked (GObject *source,
                     GAsyncResult *result,
                     gpointer user_data)
 {
-       GSimpleAsyncResult *async = G_SIMPLE_ASYNC_RESULT (user_data);
-       SearchClosure *search = g_simple_async_result_get_op_res_gpointer (async);
+       GTask *task = G_TASK (user_data);
+       SearchClosure *search = g_task_get_task_data (task);
+       GCancellable *cancellable = g_task_get_cancellable (task);
        GList *items;
 
        /* Note that we ignore any unlock failure */
@@ -1284,42 +1258,43 @@ on_search_unlocked (GObject *source,
        /* If loading secrets ... locked items automatically ignored */
        if (search->flags & SECRET_SEARCH_LOAD_SECRETS) {
                items = g_hash_table_get_values (search->items);
-               secret_item_load_secrets (items, search->cancellable,
-                                         on_search_secrets, g_object_ref (async));
+               secret_item_load_secrets (items, cancellable,
+                                         on_search_secrets, g_object_ref (task));
                g_list_free (items);
 
        /* No additional options, just complete */
        } else {
-               g_simple_async_result_complete (async);
+               g_task_return_boolean (task, TRUE);
        }
 
-       g_object_unref (async);
+       g_clear_object (&task);
 }
 
 static void
-secret_search_unlock_load_or_complete (GSimpleAsyncResult *async,
+secret_search_unlock_load_or_complete (GTask *task,
                                        SearchClosure *search)
 {
        GList *items;
+       GCancellable *cancellable = g_task_get_cancellable (task);
 
        /* If unlocking then unlock all the locked items */
        if (search->flags & SECRET_SEARCH_UNLOCK) {
                items = g_hash_table_get_values (search->items);
                secret_service_unlock (secret_collection_get_service (search->collection),
-                                      items, search->cancellable,
-                                      on_search_unlocked, g_object_ref (async));
+                                      items, cancellable,
+                                      on_search_unlocked, g_object_ref (task));
                g_list_free (items);
 
        /* If loading secrets ... locked items automatically ignored */
        } else if (search->flags & SECRET_SEARCH_LOAD_SECRETS) {
                items = g_hash_table_get_values (search->items);
-               secret_item_load_secrets (items, search->cancellable,
-                                         on_search_secrets, g_object_ref (async));
+               secret_item_load_secrets (items, cancellable,
+                                         on_search_secrets, g_object_ref (task));
                g_list_free (items);
 
        /* No additional options, just complete */
        } else {
-               g_simple_async_result_complete (async);
+               g_task_return_boolean (task, TRUE);
        }
 }
 
@@ -1328,25 +1303,28 @@ on_search_loaded (GObject *source,
                   GAsyncResult *result,
                   gpointer user_data)
 {
-       GSimpleAsyncResult *async = G_SIMPLE_ASYNC_RESULT (user_data);
-       SearchClosure *search = g_simple_async_result_get_op_res_gpointer (async);
+       GTask *task = G_TASK (user_data);
+       SearchClosure *search = g_task_get_task_data (task);
        GError *error = NULL;
        SecretItem *item;
 
        search->loading--;
 
        item = secret_item_new_for_dbus_path_finish (result, &error);
-       if (error != NULL)
-               g_simple_async_result_take_error (async, error);
+       if (error != NULL) {
+               g_task_return_error (task, g_steal_pointer (&error));
+               g_clear_object (&task);
+               return;
+       }
 
        if (item != NULL)
                search_closure_take_item (search, item);
 
        /* We're done loading, lets go to the next step */
        if (search->loading == 0)
-               secret_search_unlock_load_or_complete (async, search);
+               secret_search_unlock_load_or_complete (task, search);
 
-       g_object_unref (async);
+       g_clear_object (&task);
 }
 
 static void
@@ -1354,8 +1332,9 @@ on_search_paths (GObject *source,
                  GAsyncResult *result,
                  gpointer user_data)
 {
-       GSimpleAsyncResult *async = G_SIMPLE_ASYNC_RESULT (user_data);
-       SearchClosure *search = g_simple_async_result_get_op_res_gpointer (async);
+       GTask *task = G_TASK (user_data);
+       SearchClosure *search = g_task_get_task_data (task);
+       GCancellable *cancellable = g_task_get_cancellable (task);
        SecretCollection *self = search->collection;
        SecretService *service = secret_collection_get_service (self);
        GError *error = NULL;
@@ -1364,34 +1343,34 @@ on_search_paths (GObject *source,
        gint i;
 
        search->paths = secret_collection_search_for_dbus_paths_finish (self, result, &error);
-       if (error == NULL) {
-               want = 1;
-               if (search->flags & SECRET_SEARCH_ALL)
-                       want = G_MAXINT;
+       if (error != NULL) {
+               g_task_return_error (task, g_steal_pointer (&error));
+               g_clear_object (&task);
+               return;
+       }
 
-               for (i = 0; i < want && search->paths[i] != NULL; i++) {
-                       item = _secret_collection_find_item_instance (self, search->paths[i]);
-                       if (item == NULL) {
-                               secret_item_new_for_dbus_path (service, search->paths[i], SECRET_ITEM_NONE,
-                                                              search->cancellable, on_search_loaded,
-                                                              g_object_ref (async));
-                               search->loading++;
-                       } else {
-                               search_closure_take_item (search, item);
-                       }
+       want = 1;
+       if (search->flags & SECRET_SEARCH_ALL)
+               want = G_MAXINT;
 
+       for (i = 0; i < want && search->paths[i] != NULL; i++) {
+               item = _secret_collection_find_item_instance (self, search->paths[i]);
+               if (item == NULL) {
+                       secret_item_new_for_dbus_path (service, search->paths[i], SECRET_ITEM_NONE,
+                                                      cancellable, on_search_loaded,
+                                                      g_object_ref (task));
+                       search->loading++;
+               } else {
+                       search_closure_take_item (search, item);
                }
 
-               /* No items loading, complete operation now */
-               if (search->loading == 0)
-                       secret_search_unlock_load_or_complete (async, search);
-
-       } else {
-               g_simple_async_result_take_error (async, error);
-               g_simple_async_result_complete (async);
        }
 
-       g_object_unref (async);
+       /* No items loading, complete operation now */
+       if (search->loading == 0)
+               secret_search_unlock_load_or_complete (task, search);
+
+       g_clear_object (&task);
 }
 
 /**
@@ -1429,7 +1408,7 @@ secret_collection_search (SecretCollection *self,
                           GAsyncReadyCallback callback,
                           gpointer user_data)
 {
-       GSimpleAsyncResult *async;
+       GTask *task;
        SearchClosure *search;
 
        g_return_if_fail (SECRET_IS_COLLECTION (self));
@@ -1440,20 +1419,19 @@ secret_collection_search (SecretCollection *self,
        if (schema != NULL && !_secret_attributes_validate (schema, attributes, G_STRFUNC, TRUE))
                return;
 
-       async = g_simple_async_result_new (G_OBJECT (self), callback, user_data,
-                                          secret_collection_search);
+       task = g_task_new (self, cancellable, callback, user_data);
+       g_task_set_source_tag (task, secret_collection_search);
        search = g_slice_new0 (SearchClosure);
        search->collection = g_object_ref (self);
-       search->cancellable = cancellable ? g_object_ref (cancellable) : NULL;
        search->items = g_hash_table_new_full (g_str_hash, g_str_equal, NULL, g_object_unref);
        search->flags = flags;
-       g_simple_async_result_set_op_res_gpointer (async, search, search_closure_free);
+       g_task_set_task_data (task, search, search_closure_free);
 
        secret_collection_search_for_dbus_paths (self, schema, attributes,
                                                 cancellable, on_search_paths,
-                                                g_object_ref (async));
+                                                g_steal_pointer (&task));
 
-       g_object_unref (async);
+       g_clear_object (&task);
 }
 
 /**
@@ -1472,7 +1450,6 @@ secret_collection_search_finish (SecretCollection *self,
                                  GAsyncResult *result,
                                  GError **error)
 {
-       GSimpleAsyncResult *async;
        SearchClosure *search;
        GList *items = NULL;
        SecretItem *item;
@@ -1480,14 +1457,14 @@ secret_collection_search_finish (SecretCollection *self,
 
        g_return_val_if_fail (SECRET_IS_COLLECTION (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),
-                             secret_collection_search), NULL);
+       g_return_val_if_fail (g_task_is_valid (result, self), NULL);
 
-       async = G_SIMPLE_ASYNC_RESULT (result);
-       if (_secret_util_propagate_error (async, error))
+       if (!g_task_propagate_boolean (G_TASK (result), error)) {
+               _secret_util_strip_remote_error (error);
                return NULL;
+       }
 
-       search = g_simple_async_result_get_op_res_gpointer (async);
+       search = g_task_get_task_data (G_TASK (result));
 
        for (i = 0; search->paths[i]; i++) {
                item = g_hash_table_lookup (search->items, search->paths[i]);
@@ -1613,15 +1590,18 @@ on_service_delete_path (GObject *source,
                         GAsyncResult *result,
                         gpointer user_data)
 {
-       GSimpleAsyncResult *async = G_SIMPLE_ASYNC_RESULT (user_data);
+       GTask *task = G_TASK (user_data);
        GError *error = NULL;
 
        _secret_service_delete_path_finish (SECRET_SERVICE (source), result, &error);
        if (error != NULL)
-               g_simple_async_result_take_error (async, error);
-       g_simple_async_result_complete (async);
-       g_object_unref (async);
+               g_task_return_error (task, g_steal_pointer (&error));
+       else
+               g_task_return_boolean (task, TRUE);
+
+       g_clear_object (&task);
 }
+
 /**
  * secret_collection_delete:
  * @self: a collection
@@ -1641,21 +1621,21 @@ secret_collection_delete (SecretCollection *self,
                           GAsyncReadyCallback callback,
                           gpointer user_data)
 {
-       GSimpleAsyncResult *async;
+       GTask *task;
        const gchar *object_path;
 
        g_return_if_fail (SECRET_IS_COLLECTION (self));
        g_return_if_fail (cancellable == NULL || G_IS_CANCELLABLE (cancellable));
 
-       async = g_simple_async_result_new (G_OBJECT (self), callback, user_data,
-                                          secret_collection_delete);
+       task = g_task_new (self, cancellable, callback, user_data);
+       g_task_set_source_tag (task, secret_collection_delete);
 
        object_path = g_dbus_proxy_get_object_path (G_DBUS_PROXY (self));
        _secret_service_delete_path (self->pv->service, object_path, FALSE,
                                     cancellable, on_service_delete_path,
-                                    g_object_ref (async));
+                                    g_steal_pointer (&task));
 
-       g_object_unref (async);
+       g_clear_object (&task);
 }
 
 /**
@@ -1675,11 +1655,12 @@ secret_collection_delete_finish (SecretCollection *self,
 {
        g_return_val_if_fail (SECRET_IS_COLLECTION (self), FALSE);
        g_return_val_if_fail (error == NULL || *error == NULL, FALSE);
-       g_return_val_if_fail (g_simple_async_result_is_valid (result, G_OBJECT (self),
-                             secret_collection_delete), FALSE);
+       g_return_val_if_fail (g_task_is_valid (result, self), FALSE);
 
-       if (_secret_util_propagate_error (G_SIMPLE_ASYNC_RESULT (result), error))
+       if (!g_task_propagate_boolean (G_TASK (result), error)) {
+               _secret_util_strip_remote_error (error);
                return FALSE;
+       }
 
        return TRUE;
 }
@@ -1997,10 +1978,8 @@ secret_collection_get_modified (SecretCollection *self)
 
 
 typedef struct {
-       GCancellable *cancellable;
        gchar *alias;
        SecretCollectionFlags flags;
-       SecretCollection *collection;
 } ReadClosure;
 
 static void
@@ -2008,10 +1987,6 @@ read_closure_free (gpointer data)
 {
        ReadClosure *read = data;
        g_free (read->alias);
-       if (read->collection)
-               g_object_unref (read->collection);
-       if (read->cancellable)
-               g_object_unref (read->cancellable);
        g_slice_free (ReadClosure, read);
 }
 
@@ -2020,16 +1995,17 @@ on_read_alias_collection (GObject *source,
                           GAsyncResult *result,
                           gpointer user_data)
 {
-       GSimpleAsyncResult *async = G_SIMPLE_ASYNC_RESULT (user_data);
-       ReadClosure *read = g_simple_async_result_get_op_res_gpointer (async);
+       GTask *task = G_TASK (user_data);
+       SecretCollection *collection;
        GError *error = NULL;
 
-       read->collection = secret_collection_new_for_dbus_path_finish (result, &error);
+       collection = secret_collection_new_for_dbus_path_finish (result, &error);
        if (error != NULL)
-               g_simple_async_result_take_error (async, error);
+               g_task_return_error (task, g_steal_pointer (&error));
+       else
+               g_task_return_pointer (task, collection, g_object_unref);
 
-       g_simple_async_result_complete (async);
-       g_object_unref (async);
+       g_clear_object (&task);
 }
 
 static void
@@ -2037,8 +2013,9 @@ on_read_alias_path (GObject *source,
                     GAsyncResult *result,
                     gpointer user_data)
 {
-       GSimpleAsyncResult *async = G_SIMPLE_ASYNC_RESULT (user_data);
-       ReadClosure *read = g_simple_async_result_get_op_res_gpointer (async);
+       GTask *task = G_TASK (user_data);
+       ReadClosure *read = g_task_get_task_data (task);
+       GCancellable *cancellable = g_task_get_cancellable (task);
        SecretService *self = SECRET_SERVICE (source);
        GError *error = NULL;
        gchar *collection_path;
@@ -2048,34 +2025,35 @@ on_read_alias_path (GObject *source,
 
                /* No collection for this alias */
                if (collection_path == NULL) {
-                       g_simple_async_result_complete (async);
+                       g_task_return_pointer (task, NULL, NULL);
 
                } else {
-                       read->collection = _secret_service_find_collection_instance (self,
-                                                                                    collection_path);
-                       if (read->collection != NULL) {
+                       SecretCollection *collection;
 
+                       collection = _secret_service_find_collection_instance (self,
+                                                                              collection_path);
+                       if (collection != NULL) {
                                /* Make sure collection has necessary flags */
-                               collection_ensure_for_flags_async (read->collection, read->flags,
-                                                                  read->cancellable, async);
+                               collection_ensure_for_flags_async (collection,
+                                                                  read->flags,
+                                                                  task);
 
                        /* No collection loaded, but valid path, load */
                        } else {
                                secret_collection_new_for_dbus_path (self, collection_path,
                                                                     read->flags,
-                                                                    read->cancellable,
+                                                                    cancellable,
                                                                     on_read_alias_collection,
-                                                                    g_object_ref (async));
+                                                                    g_steal_pointer (&task));
                        }
                }
 
        } else {
-               g_simple_async_result_take_error (async, error);
-               g_simple_async_result_complete (async);
+               g_task_return_error (task, g_steal_pointer (&error));
        }
 
        g_free (collection_path);
-       g_object_unref (async);
+       g_clear_object (&task);
 }
 
 static void
@@ -2083,23 +2061,24 @@ on_read_alias_service (GObject *source,
                        GAsyncResult *result,
                        gpointer user_data)
 {
-       GSimpleAsyncResult *async = G_SIMPLE_ASYNC_RESULT (user_data);
-       ReadClosure *read = g_simple_async_result_get_op_res_gpointer (async);
+       GTask *task = G_TASK (user_data);
+       ReadClosure *read = g_task_get_task_data (task);
+       GCancellable *cancellable = g_task_get_cancellable (task);
        SecretService *service;
        GError *error = NULL;
 
        service = secret_service_get_finish (result, &error);
        if (error == NULL) {
-               secret_service_read_alias_dbus_path (service, read->alias, read->cancellable,
-                                                    on_read_alias_path, g_object_ref (async));
+               secret_service_read_alias_dbus_path (service, read->alias, cancellable,
+                                                    on_read_alias_path,
+                                                    g_steal_pointer (&task));
                g_object_unref (service);
 
        } else {
-               g_simple_async_result_take_error (async, error);
-               g_simple_async_result_complete (async);
+               g_task_return_error (task, g_steal_pointer (&error));
        }
 
-       g_object_unref (async);
+       g_clear_object (&task);
 }
 
 /**
@@ -2127,30 +2106,30 @@ secret_collection_for_alias (SecretService *service,
                              GAsyncReadyCallback callback,
                              gpointer user_data)
 {
-       GSimpleAsyncResult *async;
+       GTask *task;
        ReadClosure *read;
 
        g_return_if_fail (service == NULL || SECRET_IS_SERVICE (service));
        g_return_if_fail (alias != NULL);
        g_return_if_fail (cancellable == NULL || G_IS_CANCELLABLE (cancellable));
 
-       async = g_simple_async_result_new (NULL, callback, user_data,
-                                          secret_collection_for_alias);
+       task = g_task_new (NULL, cancellable, callback, user_data);
+       g_task_set_source_tag (task, secret_collection_for_alias);
        read = g_slice_new0 (ReadClosure);
-       read->cancellable = cancellable ? g_object_ref (cancellable) : NULL;
        read->alias = g_strdup (alias);
        read->flags = flags;
-       g_simple_async_result_set_op_res_gpointer (async, read, read_closure_free);
+       g_task_set_task_data (task, read, read_closure_free);
 
        if (service == NULL) {
                secret_service_get (SECRET_SERVICE_NONE, cancellable,
-                                   on_read_alias_service, g_object_ref (async));
+                                   on_read_alias_service, g_object_ref (task));
        } else {
-               secret_service_read_alias_dbus_path (service, read->alias, read->cancellable,
-                                                    on_read_alias_path, g_object_ref (async));
+               secret_service_read_alias_dbus_path (service, read->alias, cancellable,
+                                                    on_read_alias_path,
+                                                    g_steal_pointer (&task));
        }
 
-       g_object_unref (async);
+       g_clear_object (&task);
 }
 
 /**
@@ -2167,20 +2146,18 @@ SecretCollection *
 secret_collection_for_alias_finish (GAsyncResult *result,
                                     GError **error)
 {
-       GSimpleAsyncResult *async;
-       ReadClosure *read;
+       SecretCollection *collection;
 
-       g_return_val_if_fail (g_simple_async_result_is_valid (result, NULL,
-                             secret_collection_for_alias), NULL);
+       g_return_val_if_fail (g_task_is_valid (result, NULL), NULL);
        g_return_val_if_fail (error == NULL || *error == NULL, NULL);
 
-       async = G_SIMPLE_ASYNC_RESULT (result);
-       if (_secret_util_propagate_error (async, error))
+       collection = g_task_propagate_pointer (G_TASK (result), error);
+       if (error && *error) {
+               _secret_util_strip_remote_error (error);
                return NULL;
-       read = g_simple_async_result_get_op_res_gpointer (async);
-       if (read->collection)
-               g_object_ref (read->collection);
-       return read->collection;
+       }
+
+       return collection;
 }
 
 /**


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