BUS_FILTER_CALLBACK   85 src/libsystemd/sd-bus/bus-slot.c         case BUS_FILTER_CALLBACK:
BUS_FILTER_CALLBACK 2793 src/libsystemd/sd-bus/sd-bus.c         s = bus_slot_allocate(bus, !slot, BUS_FILTER_CALLBACK, sizeof(struct filter_callback), userdata);