2 * Copyright (C) 2010-2011 Robert Ancell.
3 * Author: Robert Ancell <robert.ancell@canonical.com>
5 * This program is free software: you can redistribute it and/or modify it under
6 * the terms of the GNU General Public License as published by the Free Software
7 * Foundation, either version 3 of the License, or (at your option) any later
8 * version. See http://www.gnu.org/copyleft/gpl.html the full text of the
18 #include "greeter-session.h"
20 struct GreeterSessionPrivate
22 /* Greeter running inside this session */
26 G_DEFINE_TYPE (GreeterSession, greeter_session, SESSION_TYPE);
29 greeter_session_new (void)
31 return g_object_new (GREETER_SESSION_TYPE, NULL);
35 greeter_session_get_greeter (GreeterSession *session)
37 g_return_val_if_fail (session != NULL, NULL);
38 return session->priv->greeter;
42 greeter_session_start (Session *session)
44 GreeterSession *s = GREETER_SESSION (session);
45 int to_greeter_pipe[2], from_greeter_pipe[2];
46 int to_greeter_input, to_greeter_output, from_greeter_input, from_greeter_output;
50 /* Create a pipe to talk with the greeter */
51 if (pipe (to_greeter_pipe) != 0 || pipe (from_greeter_pipe) != 0)
53 g_warning ("Failed to create pipes: %s", strerror (errno));
57 to_greeter_input = to_greeter_pipe[1];
58 to_greeter_output = to_greeter_pipe[0];
59 from_greeter_input = from_greeter_pipe[1];
60 from_greeter_output = from_greeter_pipe[0];
61 greeter_set_file_descriptors (s->priv->greeter, to_greeter_input, from_greeter_output);
63 /* Don't allow the daemon end of the pipes to be accessed in child processes */
64 fcntl (to_greeter_input, F_SETFD, FD_CLOEXEC);
65 fcntl (from_greeter_output, F_SETFD, FD_CLOEXEC);
67 /* Let the greeter session know how to communicate with the daemon */
68 value = g_strdup_printf ("%d", from_greeter_input);
69 session_set_env (session, "LIGHTDM_TO_SERVER_FD", value);
71 value = g_strdup_printf ("%d", to_greeter_output);
72 session_set_env (session, "LIGHTDM_FROM_SERVER_FD", value);
75 result = SESSION_CLASS (greeter_session_parent_class)->start (session);
77 /* Close the session ends of the pipe */
78 close (from_greeter_input);
79 close (to_greeter_output);
85 greeter_session_stop (Session *session)
87 GreeterSession *s = GREETER_SESSION (session);
89 greeter_stop (s->priv->greeter);
91 SESSION_CLASS (greeter_session_parent_class)->stop (session);
95 greeter_session_init (GreeterSession *session)
97 session->priv = G_TYPE_INSTANCE_GET_PRIVATE (session, GREETER_SESSION_TYPE, GreeterSessionPrivate);
98 session->priv->greeter = greeter_new ();
102 greeter_session_finalize (GObject *object)
104 GreeterSession *self = GREETER_SESSION (object);
106 g_clear_object (&self->priv->greeter);
108 G_OBJECT_CLASS (greeter_session_parent_class)->finalize (object);
112 greeter_session_class_init (GreeterSessionClass *klass)
114 SessionClass *session_class = SESSION_CLASS (klass);
115 GObjectClass *object_class = G_OBJECT_CLASS (klass);
117 session_class->start = greeter_session_start;
118 session_class->stop = greeter_session_stop;
119 object_class->finalize = greeter_session_finalize;
121 g_type_class_add_private (klass, sizeof (GreeterSessionPrivate));