* These functions access data in /proc, /sys/fs/cgroup and /run. All
* of these are virtual file systems, hence the accesses are
* relatively cheap.
+ *
+ * See sd-login(3) for more information.
*/
/* Get session from PID. Note that 'shared' processes of a user are
/* Determine the X11 display of this session. */
int sd_session_get_display(const char *session, char **display);
+/* Determine the TTY of this session. */
+int sd_session_get_tty(const char *session, char **display);
+
/* Return active session and user of seat */
int sd_seat_get_active(const char *seat, char **session, uid_t *uid);
/* Return whether the seat is multi-session capable */
int sd_seat_can_multi_session(const char *seat);
+/* Return whether the seat is TTY capable, i.e. suitable for showing console UIs */
+int sd_seat_can_tty(const char *seat);
+
+/* Return whether the seat is graphics capable, i.e. suitable for showing graphical UIs */
+int sd_seat_can_graphical(const char *seat);
+
/* Get all seats, store in *seats. Returns the number of seats. If
* seats is NULL only returns number of seats. */
int sd_get_seats(char ***seats);