So obvious in retrospect. The object system can do all the work for us
and keep track of pending calls as regular objects and we don't need to
abuse the resource system to get them cleaned up on client exit. We
don't need the custom key management or (broken) lookup, we just sue
object IDs. And last but not least, anybody can receive the callback,
not just display listeners.
When the type for the first argument of the global event changed from new_id to
uint, wl_connection_vmarshal started expecting an integer argument rather than
an object argument. As a result we were sending the client a chunk of pointer
rather than a useful global identifier.
Change 4453ba084a disallows using
post_global with objects not on the global list. Therefore selection
and drag offers have to be added to the global list from now on.
However these may often get replaced by a newer object and thus need a
way to remove a global from the global list.
Previously for wayland clients to flush buffered connection data to the
compositor they needed to first register an event-mask-update-callback
via wl_display_get_fd() to determine if there is anything writeable
pending. (NB: It's considered an error to iterate connection data with
an invalid mask)
Since it's only possible to register a single update callback currently
it's a bit awkward if you want to allow multiple orthogonal components
to flush the connection data, such as Cogl and Clutter which both want
to interact with wayland and may want to flush commands at different
times.
This adds a mechanism, wl_display_flush(), which makes it possible to
flush writeable connection data without first checking the event mask.
When cross-compiling Wayland, wayland-scanner should be picked up from
the host system instead of compiling and trying to run e.g. ARM
wayland-scanner on X86.
This patch adds --disable-scanner option for disabling the scanner
from the build and using existing wayland-scanner instead (from PATH)
which should help in most cross-compilation systems.
By default everything works as before.
Signed-off-by: Jani Uusi-Rantala <jani.uusi-rantala@nokia.com>
