bus_match_add      78 src/libsystemd/sd-bus/bus-match.h int bus_match_add(struct bus_match_node *root, struct bus_match_component *components, unsigned n_components, struct match_callback *callback);
bus_match_add    2857 src/libsystemd/sd-bus/sd-bus.c         r = bus_match_add(&bus->match_callbacks, components, n_components, &s->match_callback);