time_callback    2925 src/libsystemd/sd-bus/sd-bus.c static int time_callback(sd_event_source *s, uint64_t usec, void *userdata) {
time_callback     780 src/libsystemd/sd-rtnl/sd-rtnl.c static int time_callback(sd_event_source *s, uint64_t usec, void *userdata) {