- using threading.Events instead of Queue - started_callback has no more argument - introduced timeout for starting modules Change-Id: I5a8b59cf552918cf7e61ae93cda907f7b0d97836 Reviewed-on: https://forge.frm2.tum.de/review/20281 Tested-by: JenkinsCodeReview <bjoern_pedersen@frm2.tum.de> Reviewed-by: Enrico Faulhaber <enrico.faulhaber@frm2.tum.de>