-int cg_kill(const char *controller, const char *path, int sig, bool ignore_self);
-int cg_kill_recursive(const char *controller, const char *path, int sig, bool ignore_self, bool remove);
+int cg_kill(const char *controller, const char *path, int sig, bool ignore_self, Set *s);
+int cg_kill_recursive(const char *controller, const char *path, int sig, bool ignore_self, bool remove, Set *s);