summaryrefslogtreecommitdiff
path: root/libcons/vcons-add.c
blob: cc7717f6d8b5135f5a371b9ad1dd0fda40503b46 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
/* vcons-add.c - Add a virtual console.
   Copyright (C) 2002 Free Software Foundation, Inc.
   Written by Marcus Brinkmann.

   This file is part of the GNU Hurd.

   The GNU Hurd is free software; you can redistribute it and/or
   modify it under the terms of the GNU General Public License as
   published by the Free Software Foundation; either version 2, or (at
   your option) any later version.

   The GNU Hurd is distributed in the hope that it will be useful, but
   WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with this program; if not, write to the Free Software
   Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111, USA. */

#include <errno.h>

#include "cons.h"

/* The virtual console VCONS was just added.  VCONS->cons is
   locked.  */
void
cons_vcons_add (vcons_t vcons)
{
  error_t err;

  /* The first console added will be activated automatically.  */
  if (vcons->cons->active)
    return;

  /* Forward the activation request to the user.  */
  err = cons_vcons_activate (vcons);
  if (!err)
    {
      vcons->cons->active = vcons;
      cons_vcons_refresh (vcons);
    }
}