[evolution-data-server/openismus-work-3-8] Backported e_weak_ref_new()/e_weak_ref_free()

[Tristan Van Berkom <tvb src gnome org>]

commit 088cc6a61806f78d3a47cf7bf446907957d70972
Author: Tristan Van Berkom <tristan van berkom gmail com>
Date:   Mon Aug 19 13:22:13 2013 +0200

    Backported e_weak_ref_new()/e_weak_ref_free()
    
    These will be needed by the EBookClientCursor.

 libedataserver/e-data-server-util.c |   40 +++++++++++++++++++++++++++++++++++
 libedataserver/e-data-server-util.h |    3 ++
 2 files changed, 43 insertions(+), 0 deletions(-)
---
diff --git a/libedataserver/e-data-server-util.c b/libedataserver/e-data-server-util.c
index 864da07..4c45707 100644
--- a/libedataserver/e-data-server-util.c
+++ b/libedataserver/e-data-server-util.c
@@ -1548,6 +1548,46 @@ e_async_closure_callback (GObject *object,
        g_main_loop_quit (real_closure->loop);
 }
 
+/**
+ * e_weak_ref_new:
+ * @object: (allow-none): a #GObject or %NULL
+ *
+ * Allocates a new #GWeakRef and calls g_weak_ref_set() with @object.
+ *
+ * Free the returned #GWeakRef with e_weak_ref_free().
+ *
+ * Returns: a new #GWeakRef
+ *
+ * Since: 3.10
+ **/
+GWeakRef *
+e_weak_ref_new (gpointer object)
+{
+       GWeakRef *weak_ref;
+
+       weak_ref = g_slice_new0 (GWeakRef);
+       g_weak_ref_set (weak_ref, object);
+
+       return weak_ref;
+}
+
+/**
+ * e_weak_ref_free:
+ * @weak_ref: a #GWeakRef
+ *
+ * Frees a #GWeakRef created by e_weak_ref_new().
+ *
+ * Since: 3.10
+ **/
+void
+e_weak_ref_free (GWeakRef *weak_ref)
+{
+       g_return_if_fail (weak_ref != NULL);
+
+       g_weak_ref_set (weak_ref, NULL);
+       g_slice_free (GWeakRef, weak_ref);
+}
+
 #ifdef G_OS_WIN32
 
 #include <windows.h>
diff --git a/libedataserver/e-data-server-util.h b/libedataserver/e-data-server-util.h
index cf8ce2d..194c00c 100644
--- a/libedataserver/e-data-server-util.h
+++ b/libedataserver/e-data-server-util.h
@@ -117,6 +117,9 @@ void                e_async_closure_callback        (GObject *object,
                                                 GAsyncResult *result,
                                                 gpointer closure);
 
+GWeakRef       *e_weak_ref_new                  (gpointer object);
+void            e_weak_ref_free                 (GWeakRef *weak_ref);
+
 #ifdef G_OS_WIN32
 const gchar *  e_util_get_prefix               (void) G_GNUC_CONST;
 const gchar *  e_util_get_cp_prefix            (void) G_GNUC_CONST;