[PATCH 06/10] logind: rename vtconsole to seat0

[David Herrmann]

The seat->vtconsole member always points to the default seat seat0. Even
if VTs are disabled, it's used as default seat. Therefore, rename it to
seat0 to correctly state what it is.

This also changes the seat files in /run from IS_VTCONSOLE to IS_SEAT0. It
wasn't used by any code, yet, so this seems fine.

While we are at it, we also remove every "if (s->vtconsole)" as this
pointer is always valid!
---
 src/login/logind-dbus.c    |  8 ++++----
 src/login/logind-seat.c    | 14 +++++++-------
 src/login/logind-seat.h    |  2 +-
 src/login/logind-session.c |  2 +-
 src/login/logind.c         |  8 ++++----
 src/login/logind.h         |  2 +-
 6 files changed, 18 insertions(+), 18 deletions(-)

diff --git a/src/login/logind-dbus.c b/src/login/logind-dbus.c
index a703e59..8940aeb 100644
--- a/src/login/logind-dbus.c
+++ b/src/login/logind-dbus.c
@@ -404,8 +404,8 @@ static int bus_manager_create_session(Manager *m, DBusMessage *message) {
                 int v;
 
                 if (!seat)
-                        seat = m->vtconsole;
-                else if (seat != m->vtconsole)
+                        seat = m->seat0;
+                else if (seat != m->seat0)
                         return -EINVAL;
 
                 v = vtnr_from_tty(tty);
@@ -420,8 +420,8 @@ static int bus_manager_create_session(Manager *m, DBusMessage *message) {
         } else if (tty_is_console(tty)) {
 
                 if (!seat)
-                        seat = m->vtconsole;
-                else if (seat != m->vtconsole)
+                        seat = m->seat0;
+                else if (seat != m->seat0)
                         return -EINVAL;
 
                 if (vtnr != 0)
diff --git a/src/login/logind-seat.c b/src/login/logind-seat.c
index dcaf0ac..88fd724 100644
--- a/src/login/logind-seat.c
+++ b/src/login/logind-seat.c
@@ -105,11 +105,11 @@ int seat_save(Seat *s) {
 
         fprintf(f,
                 "# This is private data. Do not parse.\n"
-                "IS_VTCONSOLE=%i\n"
+                "IS_SEAT0=%i\n"
                 "CAN_MULTI_SESSION=%i\n"
                 "CAN_TTY=%i\n"
                 "CAN_GRAPHICAL=%i\n",
-                seat_is_vtconsole(s),
+                seat_is_seat0(s),
                 seat_can_multi_session(s),
                 seat_can_tty(s),
                 seat_can_graphical(s));
@@ -429,16 +429,16 @@ int seat_attach_session(Seat *s, Session *session) {
         return 0;
 }
 
-bool seat_is_vtconsole(Seat *s) {
+bool seat_is_seat0(Seat *s) {
         assert(s);
 
-        return s->manager->vtconsole == s;
+        return s->manager->seat0 == s;
 }
 
 bool seat_can_multi_session(Seat *s) {
         assert(s);
 
-        if (!seat_is_vtconsole(s))
+        if (!seat_is_seat0(s))
                 return false;
 
         /* If we can't watch which VT is in the foreground, we don't
@@ -450,7 +450,7 @@ bool seat_can_multi_session(Seat *s) {
 bool seat_can_tty(Seat *s) {
         assert(s);
 
-        return seat_is_vtconsole(s);
+        return seat_is_seat0(s);
 }
 
 bool seat_has_master_device(Seat *s) {
@@ -508,7 +508,7 @@ int seat_check_gc(Seat *s, bool drop_not_started) {
         if (drop_not_started && !s->started)
                 return 0;
 
-        if (seat_is_vtconsole(s))
+        if (seat_is_seat0(s))
                 return 1;
 
         return seat_has_master_device(s);
diff --git a/src/login/logind-seat.h b/src/login/logind-seat.h
index bd5390f..47fe89a 100644
--- a/src/login/logind-seat.h
+++ b/src/login/logind-seat.h
@@ -60,7 +60,7 @@ int seat_preallocate_vts(Seat *s);
 
 int seat_attach_session(Seat *s, Session *session);
 
-bool seat_is_vtconsole(Seat *s);
+bool seat_is_seat0(Seat *s);
 bool seat_can_multi_session(Seat *s);
 bool seat_can_tty(Seat *s);
 bool seat_has_master_device(Seat *s);
diff --git a/src/login/logind-session.c b/src/login/logind-session.c
index 69a8ad7..ae91650 100644
--- a/src/login/logind-session.c
+++ b/src/login/logind-session.c
@@ -386,7 +386,7 @@ int session_activate(Session *s) {
         if (s->seat->active == s)
                 return 0;
 
-        assert(seat_is_vtconsole(s->seat));
+        assert(seat_is_seat0(s->seat));
 
         return chvt(s->vtnr);
 }
diff --git a/src/login/logind.c b/src/login/logind.c
index ad3ab81..d18bb08 100644
--- a/src/login/logind.c
+++ b/src/login/logind.c
@@ -852,7 +852,7 @@ int manager_dispatch_vcsa_udev(Manager *m) {
          * VTs, to make sure our auto VTs never go away. */
 
         if (name && startswith(name, "vcsa") && streq_ptr(udev_device_get_action(d), "remove"))
-                r = seat_preallocate_vts(m->vtconsole);
+                r = seat_preallocate_vts(m->seat0);
 
         udev_device_unref(d);
 
@@ -877,9 +877,9 @@ int manager_dispatch_button_udev(Manager *m) {
 
 int manager_dispatch_console(Manager *m) {
         assert(m);
+        assert(m->seat0);
 
-        if (m->vtconsole)
-                seat_read_active_vt(m->vtconsole);
+        seat_read_active_vt(m->seat0);
 
         return 0;
 }
@@ -1537,7 +1537,7 @@ int manager_startup(Manager *m) {
                 return r;
 
         /* Instantiate magic seat 0 */
-        r = manager_add_seat(m, "seat0", &m->vtconsole);
+        r = manager_add_seat(m, "seat0", &m->seat0);
         if (r < 0)
                 return r;
 
diff --git a/src/login/logind.h b/src/login/logind.h
index a76936d..9e6296c 100644
--- a/src/login/logind.h
+++ b/src/login/logind.h
@@ -74,7 +74,7 @@ struct Manager {
         unsigned reserve_vt;
         int reserve_vt_fd;
 
-        Seat *vtconsole;
+        Seat *seat0;
 
         char **kill_only_users, **kill_exclude_users;
         bool kill_user_processes;
-- 
1.8.3.4