[glib] gio: Fix regression encoding an array of doubles

[Stefan Walter <stefw src gnome org>]

commit 627b49b39039d43a784fa9890f473d1ca8d52417
Author: Stef Walter <stefw gnome org>
Date:   Tue Jul 22 21:29:27 2014 +0200

    gio: Fix regression encoding an array of doubles
    
    Take the simple slow path in this case. Encoding a double
    takes special precautions as you can see in append_value_to_blob()
    and friends.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=732754

 gio/gdbusmessage.c |    7 ++++++-
 1 files changed, 6 insertions(+), 1 deletions(-)
---
diff --git a/gio/gdbusmessage.c b/gio/gdbusmessage.c
index cd995b8..dcf1758 100644
--- a/gio/gdbusmessage.c
+++ b/gio/gdbusmessage.c
@@ -1210,6 +1210,11 @@ get_type_fixed_size (const GVariantType *type)
 {
   /* NB: we do not treat 'b' as fixed-size here because GVariant and
    * D-Bus disagree about the size.
+   *
+   * In addition 'd' is encoded differently by GVariant and DBus, so
+   * we force (en|de)coding rather than direct use of fixed data.
+   *
+   * https://bugzilla.gnome.org/show_bug.cgi?id=732754
    */
   switch (*g_variant_type_peek_string (type))
     {
@@ -1219,7 +1224,7 @@ get_type_fixed_size (const GVariantType *type)
       return 2;
     case 'i': case 'u': case 'h':
       return 4;
-    case 'x': case 't': case 'd':
+    case 'x': case 't':
       return 8;
     default:
       return 0;