messages might get lost after activate, when the number of parameters
exceeds maxlen of the output queue, as a limited deque silently overwrites
messages.
first try: use an infinite deque, but slow down appending thread when deque
gets too big
-> does not work because the appending thread is the same
second try: increase maximum a lot, on overflow log an error message and
close connection
Change-Id: I20376f7e08240dabe43269fa63c596f07e59ddf6
Reviewed-on: https://forge.frm2.tum.de/review/20982
Tested-by: JenkinsCodeReview <bjoern_pedersen@frm2.tum.de>
Reviewed-by: Enrico Faulhaber <enrico.faulhaber@frm2.tum.de>
Reviewed-by: Markus Zolliker <markus.zolliker@psi.ch>
