core: Prevent dead-lock in signal handler
core: Prevent dead-lock in signal handler

Pelagicore/Media-Manager-Rygel-patched,Pelagicore/Media-Manager-Rygel-patched,Tarnyko/rygel,GNOME/rygel,jku/rygel,Pelagicore/Media-Manager-Rygel-patched,jku/rygel,Tarnyko/rygel,GNOME/rygel,GNOME/rygel