s->started = true;
+ user_elect_display(s->user);
+
/* Save data */
session_save(s);
user_save(s->user);
/* Send signals */
session_send_signal(s, true);
- user_send_changed(s->user, "Sessions", NULL);
+ user_send_changed(s->user, "Sessions", "Display", NULL);
if (s->seat) {
if (s->seat->active == s)
seat_send_changed(s->seat, "Sessions", "ActiveSession", NULL);
s->stopping = true;
+ user_elect_display(s->user);
+
session_save(s);
user_save(s->user);
}
user_save(s->user);
- user_send_changed(s->user, "Sessions", NULL);
+ user_send_changed(s->user, "Sessions", "Display", NULL);
return r;
}
_SESSION_TYPE_INVALID = -1
} SessionType;
+#define SESSION_TYPE_IS_GRAPHICAL(type) IN_SET(type, SESSION_X11, SESSION_WAYLAND, SESSION_MIR)
+
enum KillWho {
KILL_LEADER,
KILL_ALL,
SD_BUS_PROPERTY("RuntimePath", "s", NULL, offsetof(User, runtime_path), SD_BUS_VTABLE_PROPERTY_CONST),
SD_BUS_PROPERTY("Service", "s", NULL, offsetof(User, service), SD_BUS_VTABLE_PROPERTY_CONST),
SD_BUS_PROPERTY("Slice", "s", NULL, offsetof(User, slice), SD_BUS_VTABLE_PROPERTY_CONST),
- SD_BUS_PROPERTY("Display", "(so)", property_get_display, 0, SD_BUS_VTABLE_PROPERTY_CONST),
+ SD_BUS_PROPERTY("Display", "(so)", property_get_display, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
SD_BUS_PROPERTY("State", "s", property_get_state, 0, 0),
SD_BUS_PROPERTY("Sessions", "a(so)", property_get_sessions, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
SD_BUS_PROPERTY("IdleHint", "b", property_get_idle_hint, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
return manager_kill_unit(u->manager, u->slice, KILL_ALL, signo, NULL);
}
+void user_elect_display(User *u) {
+ Session *graphical = NULL, *text = NULL, *s;
+
+ assert(u);
+
+ /* This elects a primary session for each user, which we call
+ * the "display". We try to keep the assignment stable, but we
+ * "upgrade" to better choices. */
+
+ LIST_FOREACH(sessions_by_user, s, u->sessions) {
+
+ if (s->class != SESSION_USER)
+ continue;
+
+ if (s->stopping)
+ continue;
+
+ if (SESSION_TYPE_IS_GRAPHICAL(s->type))
+ graphical = s;
+ else
+ text = s;
+ }
+
+ if (graphical &&
+ (!u->display ||
+ u->display->class != SESSION_USER ||
+ u->display->stopping ||
+ !SESSION_TYPE_IS_GRAPHICAL(u->display->type)))
+ u->display = graphical;
+
+ if (text &&
+ (!u->display ||
+ u->display->class != SESSION_USER ||
+ u->display->stopping))
+ u->display = text;
+}
+
static const char* const user_state_table[_USER_STATE_MAX] = {
[USER_OFFLINE] = "offline",
[USER_OPENING] = "opening",
int user_load(User *u);
int user_kill(User *u, int signo);
int user_check_linger_file(User *u);
+void user_elect_display(User *u);
extern const sd_bus_vtable user_vtable[];
int user_node_enumerator(sd_bus *bus, const char *path, void *userdata, char ***nodes, sd_bus_error *error);