generate_introspection_xml generates the root <node> tags with a
'name' attribute. This seems to be a valid attribute but it is not
consistent with the way the D-Bus daemon generates empty nodes.
For example if we register "/foo/bar", D-Bus daemon will generate for
"/foo" a introspection which looks like this:
<!DOCTYPE node PUBLIC "-//freedesktop//DTD D-BUS Object Introspection 1.0//EN"
"http://www.freedesktop.org/standards/dbus/1.0/introspect.dtd">
<node>
<node name="bar"/>
</node>
and generate_introspection_xml generates for "/foo/bar":
<!DOCTYPE node PUBLIC "-//freedesktop//DTD D-BUS Object Introspection 1.0//EN"
"http://www.freedesktop.org/standards/dbus/1.0/introspect.dtd">
<node name="/foo/bar">
</node>
Just don't add the 'name' attribute to the root node. The GLib
binding for D-Bus does it the same way.
Assume there is only one object registerd at "/". If we add a new
object at "/foo/bar" the introspection of "/" has to be updated. A new
node has to be added at "/".
invalidate_parent_data stops invaldating the whole path because the
boolean return value of dbus_connection_get_object_path_data is used
wrong.
If we get a TRUE just go on down in the path, if FALSE is return
dbus_connection_get_object_path_data has run out of memory.
This patch was generated by the following semantic patch
(http://coccinelle.lip6.fr/)
// <smpl>
@fix disable is_null,isnt_null1@
expression *E;
@@
- !E
+ E == NULL
// </smpl>
In the case that parent path data needs to be invalidated we shouldn't
stop at the immediate parent if it doesn't have our own handler
registered but should continue upwards in the tree until we reach root
or our own handler.
Previously it was a specific case, now introspection is just another
interface, which is always implemented. It is registered/unregistered
when an object path is referenced first/last.
