* return an error for system processes. */
int sd_pid_get_owner_uid(pid_t pid, uid_t *uid);
-/* Get systemd unit (i.e. service) name from PID. This will return an
- * error for non-service processes. */
+/* Get systemd unit (i.e. service) name from PID, for system
+ * services. This will return an error for non-service processes. */
int sd_pid_get_unit(pid_t, char **unit);
+/* Get systemd unit (i.e. service) name from PID, for user
+ * services. This will return an error for non-user-service
+ * processes. */
+int sd_pid_get_user_unit(pid_t, char **unit);
+
/* Get state from uid. Possible states: offline, lingering, online, active, closing */
int sd_uid_get_state(uid_t uid, char**state);