sd_pid_notify     441 src/libsystemd/sd-daemon/sd-daemon.c         return sd_pid_notify(0, unset_environment, state);
sd_pid_notify     459 src/libsystemd/sd-daemon/sd-daemon.c         return sd_pid_notify(pid, unset_environment, p);
sd_pid_notify     477 src/libsystemd/sd-daemon/sd-daemon.c         return sd_pid_notify(0, unset_environment, p);
sd_pid_notify     212 src/notify/notify.c         r = sd_pid_notify(arg_pid, false, n);