/* 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);
+int sd_pid_get_unit(pid_t pid, 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);
+int sd_pid_get_user_unit(pid_t pid, char **unit);
+
+/* Get machine name from PID, for processes assigned to VM or
+ * container. This will return an error for non-service processes. */
+int sd_pid_get_machine_name(pid_t pid, char **name);
/* Get state from uid. Possible states: offline, lingering, online, active, closing */
int sd_uid_get_state(uid_t uid, char**state);