GitLab

(XD_SIGNAL1, XD_SIGNAL2, XD_SIGNAL3): New macros.  Throw
Qdbus_error.
(xd_read_queued_messages): Catch Qdbus_error from the macros.
(all): Replace xsignal1, xsignal2, xsignal3 by the respective
macro.  (Bug#1186).