}
int manager_get_session_by_pid(Manager *m, pid_t pid, Session **session) {
+ _cleanup_free_ char *unit = NULL;
+ Session *s;
+ int r;
+
assert(m);
assert(session);
- /* Without cgroups, we have no way to map from pid to
- session. */
- return 0;
+ if (pid < 1)
+ return -EINVAL;
+
+ r = cg_pid_get_unit(pid, &unit);
+ if (r < 0)
+ return 0;
+
+ s = hashmap_get(m->session_units, unit);
+ if (!s)
+ return 0;
+
+ *session = s;
+ return 1;
}
int manager_get_user_by_pid(Manager *m, pid_t pid, User **user) {
+ _cleanup_free_ char *unit = NULL;
+ User *u;
+ int r;
+
assert(m);
assert(user);
if (pid < 1)
return -EINVAL;
- /* Without cgroups, we have no way to map from pid to
- user. */
- return 0;
+ r = cg_pid_get_slice(pid, &unit);
+ if (r < 0)
+ return 0;
+
+ u = hashmap_get(m->user_units, unit);
+ if (!u)
+ return 0;
+
+ *user = u;
+ return 1;
}
int manager_get_idle_hint(Manager *m, dual_timestamp *t) {
return r;
}
+int manager_spawn_autovt(Manager *m, unsigned int vtnr) {
+ _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
+ char name[sizeof("autovt@tty.service") + DECIMAL_STR_MAX(unsigned int)];
+ int r;
+
+ assert(m);
+ assert(vtnr >= 1);
+
+ if (vtnr > m->n_autovts &&
+ vtnr != m->reserve_vt)
+ return 0;
+
+ if (vtnr != m->reserve_vt) {
+ /* If this is the reserved TTY, we'll start the getty
+ * on it in any case, but otherwise only if it is not
+ * busy. */
+
+ r = vt_is_busy(vtnr);
+ if (r < 0)
+ return r;
+ else if (r > 0)
+ return -EBUSY;
+ }
+
+ snprintf(name, sizeof(name), "autovt@tty%u.service", vtnr);
+ r = sd_bus_call_method(
+ m->bus,
+ "org.freedesktop.systemd1",
+ "/org/freedesktop/systemd1",
+ "org.freedesktop.systemd1.Manager",
+ "StartUnit",
+ &error,
+ NULL,
+ "ss", name, "fail");
+ if (r < 0)
+ log_error("Failed to start %s: %s", name, bus_error_message(&error, r));
+
+ return r;
+}
+
bool manager_is_docked(Manager *m) {
Iterator i;
Button *b;