[libvirt] [libvirt-glib 2/2] RFC: Make use of GUINT_TO_POINTER/GPOINTER_TO_UINT

[Zeeshan Ali (Khattak)]

From: "Zeeshan Ali (Khattak)" <zeeshanak at gnome.org>

We create struct and a free function each time we need to pass a simple
unsigned integer to an async function. Code can be simplified if we
don't do that but rather use glib's API to convert to/from uint to
pointer.

This patch only changes this for one of these functions. I'll change
other functions when/if there is a consensus on this..
---
 libvirt-gobject/libvirt-gobject-domain.c | 23 ++++++-----------------
 1 file changed, 6 insertions(+), 17 deletions(-)

diff --git a/libvirt-gobject/libvirt-gobject-domain.c b/libvirt-gobject/libvirt-gobject-domain.c
index d6d804d..0289915 100644
--- a/libvirt-gobject/libvirt-gobject-domain.c
+++ b/libvirt-gobject/libvirt-gobject-domain.c
@@ -345,27 +345,18 @@ gboolean gvir_domain_start(GVirDomain *dom,
     return TRUE;
 }
 
-typedef struct {
-    guint flags;
-} DomainStartData;
-
-static void domain_start_data_free(DomainStartData *data)
-{
-    g_slice_free(DomainStartData, data);
-}
-
 static void
 gvir_domain_start_helper(GSimpleAsyncResult *res,
                          GObject *object,
                          GCancellable *cancellable G_GNUC_UNUSED)
 {
     GVirDomain *dom = GVIR_DOMAIN(object);
-    DomainStartData *data;
     GError *err = NULL;
+    guint flags;
 
-    data = g_simple_async_result_get_op_res_gpointer(res);
+    flags = GPOINTER_TO_UINT(g_simple_async_result_get_op_res_gpointer(res));
 
-    if (!gvir_domain_start(dom, data->flags, &err))
+    if (!gvir_domain_start(dom, flags, &err))
         g_simple_async_result_take_error(res, err);
 }
 
@@ -386,19 +377,17 @@ void gvir_domain_start_async(GVirDomain *dom,
                              gpointer user_data)
 {
     GSimpleAsyncResult *res;
-    DomainStartData *data;
 
     g_return_if_fail(GVIR_IS_DOMAIN(dom));
     g_return_if_fail((cancellable == NULL) || G_IS_CANCELLABLE(cancellable));
 
-    data = g_slice_new0(DomainStartData);
-    data->flags = flags;
-
     res = g_simple_async_result_new(G_OBJECT(dom),
                                     callback,
                                     user_data,
                                     gvir_domain_start_async);
-    g_simple_async_result_set_op_res_gpointer (res, data, (GDestroyNotify)domain_start_data_free);
+    g_simple_async_result_set_op_res_gpointer (res,
+                                               GUINT_TO_POINTER(flags),
+                                               NULL);
     g_simple_async_result_run_in_thread(res,
                                         gvir_domain_start_helper,
                                         G_PRIORITY_DEFAULT,
-- 
1.7.11.2