Rework property getters to use a vfunc so we can take the fast path
and avoid allocating memory for both the skeleton and the proxy
cases. This requires some special case because of how GVariant expects
you to free memory in some cases, see #657100. Add test cases for
this.
Document the _get_ functions as not being thread-safe and also
generate _dup_ C getters (which are thread-safe).
Mark all the generated _get_, _dup_ and _set_ as (skip) as non-C
languages should just use GObject properties and not the (socalled)
"C binding".
Signed-off-by: David Zeuthen <davidz@redhat.com>
This is possible now that we have better support for object path
arrays, see
http://git.gnome.org/browse/glib/commit/?id=19878998bc386db78614f1c92ff8524a81479c7b
Note that this breaks the ABI of generated code but since
gdbus-codegen(1) has never yet been in a stable GLib release, this is
fine.
Signed-off-by: David Zeuthen <davidz@redhat.com>
.. and add a C setter to do this. Also make the C getter return a
reference since the property may be set from another thread. Also
change the constructor to _not_ take a GDBusConnection since this is
something you almost always want to do _after_ creating it. The
API/ABI break is fine as there has never been a GLib release with this
type.
https://bugzilla.gnome.org/show_bug.cgi?id=648959
Signed-off-by: David Zeuthen <davidz@redhat.com>
Specific changes
- Use get_type(), not get_gtype() for the GType function
- so we need to use the lower-case name type_ for properties called type
- Don't return a function pointer, just make the function returned
available instead
- Add (type) annotations in constructors so g-ir-scanner detects them as such
- Add (transfer none) annotations to property getters
- Add (out) annotations to D-Bus method call functions
Signed-off-by: David Zeuthen <davidz@redhat.com>
A fairly typical pattern is to have code that does
foo_set_bar (object, "");
if (some_condition)
{
foo_set_bar (object, "yes");
}
where some_condition is often true every time @object is updated.
With this code, bar is essentially always "yes" but because of how
gdbus-codegen works, useless PropertiesChanged events got scheduled
and sent out. With this patch, we avoid that by always keeping the
original value around and comparing it only when we deem it's time to
send out the ::PropertiesChanged signal (typically in an idle but can
be forced by the user via flush()).
Also add a test case for this.
Signed-off-by: David Zeuthen <davidz@redhat.com>
And use this for a) documentation purposes; and b) to preserve C ABI
when an interface is extended. See
https://bugzilla.gnome.org/show_bug.cgi?id=647577#c5
for more details. Also add test cases for this.
Signed-off-by: David Zeuthen <davidz@redhat.com>
