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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 8 -*-
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* Copyright (C) 2007 William Jon McCann <mccann@jhu.edu>
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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#include <glib/gi18n.h>
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#include <glib-object.h>
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#include <systemd/sd-daemon.h>
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#include "gdm-manager.h"
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#include "gdm-display-factory.h"
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#include "gdm-local-display-factory.h"
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#include "gdm-local-display-factory-glue.h"
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#include "gdm-display-store.h"
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#include "gdm-static-display.h"
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#include "gdm-transient-display.h"
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#define GDM_LOCAL_DISPLAY_FACTORY_GET_PRIVATE(o) (G_TYPE_INSTANCE_GET_PRIVATE ((o), GDM_TYPE_LOCAL_DISPLAY_FACTORY, GdmLocalDisplayFactoryPrivate))
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#define CK_SEAT1_PATH "/org/freedesktop/ConsoleKit/Seat1"
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#define SYSTEMD_SEAT0_PATH "seat0"
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#define GDM_DBUS_PATH "/org/gnome/DisplayManager"
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#define GDM_LOCAL_DISPLAY_FACTORY_DBUS_PATH GDM_DBUS_PATH "/LocalDisplayFactory"
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#define GDM_MANAGER_DBUS_NAME "org.gnome.DisplayManager.LocalDisplayFactory"
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#define MAX_DISPLAY_FAILURES 5
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struct GdmLocalDisplayFactoryPrivate
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GdmDBusLocalDisplayFactory *skeleton;
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GDBusConnection *connection;
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/* FIXME: this needs to be per seat? */
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guint seat_removed_id;
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static void gdm_local_display_factory_class_init (GdmLocalDisplayFactoryClass *klass);
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static void gdm_local_display_factory_init (GdmLocalDisplayFactory *factory);
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static void gdm_local_display_factory_finalize (GObject *object);
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static GdmDisplay *create_display (GdmLocalDisplayFactory *factory,
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gboolean initial_display);
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static void on_display_status_changed (GdmDisplay *display,
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GdmLocalDisplayFactory *factory);
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static gpointer local_display_factory_object = NULL;
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G_DEFINE_TYPE (GdmLocalDisplayFactory, gdm_local_display_factory, GDM_TYPE_DISPLAY_FACTORY)
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gdm_local_display_factory_error_quark (void)
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static GQuark ret = 0;
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ret = g_quark_from_static_string ("gdm_local_display_factory_error");
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listify_hash (gpointer key,
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*list = g_list_prepend (*list, key);
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sort_nums (gpointer a,
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num_a = GPOINTER_TO_UINT (a);
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num_b = GPOINTER_TO_UINT (b);
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} else if (num_a < num_b) {
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take_next_display_number (GdmLocalDisplayFactory *factory)
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g_hash_table_foreach (factory->priv->displays, (GHFunc)listify_hash, &list);
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/* sort low to high */
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list = g_list_sort (list, (GCompareFunc)sort_nums);
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g_debug ("GdmLocalDisplayFactory: Found the following X displays:");
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for (l = list; l != NULL; l = l->next) {
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g_debug ("GdmLocalDisplayFactory: %u", GPOINTER_TO_UINT (l->data));
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for (l = list; l != NULL; l = l->next) {
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num = GPOINTER_TO_UINT (l->data);
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/* always fill zero */
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if (l->prev == NULL && num != 0) {
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/* now find the first hole */
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if (l->next == NULL || GPOINTER_TO_UINT (l->next->data) != (num + 1)) {
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/* now reserve this number */
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g_debug ("GdmLocalDisplayFactory: Reserving X display: %u", ret);
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g_hash_table_insert (factory->priv->displays, GUINT_TO_POINTER (ret), NULL);
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on_display_disposed (GdmLocalDisplayFactory *factory,
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g_debug ("GdmLocalDisplayFactory: Display %p disposed", display);
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store_display (GdmLocalDisplayFactory *factory,
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GdmDisplayStore *store;
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g_signal_connect (display, "notify::status",
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G_CALLBACK (on_display_status_changed), factory);
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g_object_weak_ref (G_OBJECT (display), (GWeakNotify)on_display_disposed, factory);
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store = gdm_display_factory_get_display_store (GDM_DISPLAY_FACTORY (factory));
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gdm_display_store_add (store, display);
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/* now fill our reserved spot */
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g_hash_table_insert (factory->priv->displays, GUINT_TO_POINTER (num), NULL);
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get_seat_of_transient_display (GdmLocalDisplayFactory *factory)
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/* FIXME: don't hardcode seat */
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seat_id = SYSTEMD_SEAT0_PATH;
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seat_id = CK_SEAT1_PATH;
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dbus-send --system --dest=org.gnome.DisplayManager \
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--type=method_call --print-reply --reply-timeout=2000 \
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/org/gnome/DisplayManager/Manager \
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org.gnome.DisplayManager.Manager.GetDisplays
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gdm_local_display_factory_create_transient_display (GdmLocalDisplayFactory *factory,
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g_return_val_if_fail (GDM_IS_LOCAL_DISPLAY_FACTORY (factory), FALSE);
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num = take_next_display_number (factory);
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g_debug ("GdmLocalDisplayFactory: Creating transient display %d", num);
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display = gdm_transient_display_new (num);
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seat_id = get_seat_of_transient_display (factory);
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g_object_set (display, "seat-id", seat_id, NULL);
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store_display (factory, num, display);
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if (! gdm_display_manage (display)) {
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if (! gdm_display_get_id (display, id, NULL)) {
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/* ref either held by store or not at all */
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g_object_unref (display);
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on_display_status_changed (GdmDisplay *display,
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GdmLocalDisplayFactory *factory)
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GdmDisplayStore *store;
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char *seat_id = NULL;
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gboolean is_initial = TRUE;
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gdm_display_get_x11_display_number (display, &num, NULL);
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g_assert (num != -1);
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store = gdm_display_factory_get_display_store (GDM_DISPLAY_FACTORY (factory));
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g_object_get (display, "seat-id", &seat_id, NULL);
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g_object_get (display, "is-initial", &is_initial, NULL);
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status = gdm_display_get_status (display);
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g_debug ("GdmLocalDisplayFactory: display status changed: %d", status);
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case GDM_DISPLAY_FINISHED:
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/* remove the display number from factory->priv->displays
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so that it may be reused */
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g_hash_table_remove (factory->priv->displays, GUINT_TO_POINTER (num));
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gdm_display_store_remove (store, display);
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/* Create a new equivalent display if it was static */
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if (GDM_IS_STATIC_DISPLAY (display)) {
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/* reset num failures */
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factory->priv->num_failures = 0;
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create_display (factory, seat_id, is_initial);
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case GDM_DISPLAY_FAILED:
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/* leave the display number in factory->priv->displays
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so that it doesn't get reused */
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gdm_display_store_remove (store, display);
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/* Create a new equivalent display if it was static */
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if (GDM_IS_STATIC_DISPLAY (display)) {
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factory->priv->num_failures++;
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if (factory->priv->num_failures > MAX_DISPLAY_FAILURES) {
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g_warning ("GdmLocalDisplayFactory: maximum number of X display failures reached: check X server log for errors");
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/* FIXME: should monitor hardware changes to
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try again when seats change */
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create_display (factory, seat_id, is_initial);
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case GDM_DISPLAY_UNMANAGED:
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case GDM_DISPLAY_PREPARED:
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case GDM_DISPLAY_MANAGED:
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g_assert_not_reached ();
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lookup_by_seat_id (const char *id,
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const char *looking_for = user_data;
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g_object_get (G_OBJECT (display), "seat-id", ¤t, NULL);
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res = g_strcmp0 (current, looking_for) == 0;
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create_display (GdmLocalDisplayFactory *factory,
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GdmDisplayStore *store;
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/* Ensure we don't create the same display more than once */
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store = gdm_display_factory_get_display_store (GDM_DISPLAY_FACTORY (factory));
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display = gdm_display_store_find (store, lookup_by_seat_id, (gpointer) seat_id);
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if (display != NULL) {
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g_debug ("GdmLocalDisplayFactory: Adding display on seat %s", seat_id);
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num = take_next_display_number (factory);
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display = gdm_static_display_new (num);
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g_object_set (display, "seat-id", seat_id, NULL);
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g_object_set (display, "is-initial", initial, NULL);
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store_display (factory, num, display);
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/* let store own the ref */
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g_object_unref (display);
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if (! gdm_display_manage (display)) {
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gdm_display_unmanage (display);
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delete_display (GdmLocalDisplayFactory *factory,
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const char *seat_id) {
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GdmDisplayStore *store;
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g_debug ("GdmLocalDisplayFactory: Removing displays on seat %s", seat_id);
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store = gdm_display_factory_get_display_store (GDM_DISPLAY_FACTORY (factory));
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gdm_display_store_foreach_remove (store, lookup_by_seat_id, (gpointer) seat_id);
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static gboolean gdm_local_display_factory_sync_seats (GdmLocalDisplayFactory *factory)
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GError *error = NULL;
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result = g_dbus_connection_call_sync (factory->priv->connection,
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"org.freedesktop.login1",
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"/org/freedesktop/login1",
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"org.freedesktop.login1.Manager",
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G_VARIANT_TYPE ("(a(so))"),
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G_DBUS_CALL_FLAGS_NONE,
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g_warning ("GdmLocalDisplayFactory: Failed to issue method call: %s", error->message);
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g_clear_error (&error);
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array = g_variant_get_child_value (result, 0);
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g_variant_iter_init (&iter, array);
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while (g_variant_iter_loop (&iter, "(&so)", &seat, NULL))
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create_display (factory, seat, TRUE);
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g_variant_unref (result);
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g_variant_unref (array);
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on_seat_new (GDBusConnection *connection,
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const gchar *sender_name,
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const gchar *object_path,
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const gchar *interface_name,
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const gchar *signal_name,
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GVariant *parameters,
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g_variant_get (parameters, "(&s&o)", &seat, NULL);
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create_display (GDM_LOCAL_DISPLAY_FACTORY (user_data), seat, FALSE);
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on_seat_removed (GDBusConnection *connection,
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const gchar *sender_name,
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const gchar *object_path,
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const gchar *interface_name,
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const gchar *signal_name,
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GVariant *parameters,
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g_variant_get (parameters, "(&s&o)", &seat, NULL);
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delete_display (GDM_LOCAL_DISPLAY_FACTORY (user_data), seat);
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gdm_local_display_factory_start_monitor (GdmLocalDisplayFactory *factory)
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factory->priv->seat_new_id = g_dbus_connection_signal_subscribe (factory->priv->connection,
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"org.freedesktop.login1",
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"org.freedesktop.login1.Manager",
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"/org/freedesktop/login1",
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G_DBUS_SIGNAL_FLAGS_NONE,
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g_object_ref (factory),
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factory->priv->seat_removed_id = g_dbus_connection_signal_subscribe (factory->priv->connection,
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"org.freedesktop.login1",
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"org.freedesktop.login1.Manager",
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"/org/freedesktop/login1",
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G_DBUS_SIGNAL_FLAGS_NONE,
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g_object_ref (factory),
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gdm_local_display_factory_stop_monitor (GdmLocalDisplayFactory *factory)
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if (factory->priv->seat_new_id) {
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g_dbus_connection_signal_unsubscribe (factory->priv->connection,
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factory->priv->seat_new_id);
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factory->priv->seat_new_id = 0;
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if (factory->priv->seat_removed_id) {
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g_dbus_connection_signal_unsubscribe (factory->priv->connection,
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factory->priv->seat_removed_id);
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factory->priv->seat_removed_id = 0;
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gdm_local_display_factory_start (GdmDisplayFactory *base_factory)
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GdmLocalDisplayFactory *factory = GDM_LOCAL_DISPLAY_FACTORY (base_factory);
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g_return_val_if_fail (GDM_IS_LOCAL_DISPLAY_FACTORY (factory), FALSE);
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if (sd_booted () > 0) {
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gdm_local_display_factory_start_monitor (factory);
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return gdm_local_display_factory_sync_seats (factory);
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/* On ConsoleKit just create Seat1, and that's it. */
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display = create_display (factory, CK_SEAT1_PATH, TRUE);
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return display != NULL;
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gdm_local_display_factory_stop (GdmDisplayFactory *base_factory)
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GdmLocalDisplayFactory *factory = GDM_LOCAL_DISPLAY_FACTORY (base_factory);
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g_return_val_if_fail (GDM_IS_LOCAL_DISPLAY_FACTORY (factory), FALSE);
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gdm_local_display_factory_stop_monitor (factory);
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gdm_local_display_factory_set_property (GObject *object,
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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gdm_local_display_factory_get_property (GObject *object,
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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handle_create_transient_display (GdmDBusLocalDisplayFactory *skeleton,
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GDBusMethodInvocation *invocation,
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GdmLocalDisplayFactory *factory)
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GError *error = NULL;
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created = gdm_local_display_factory_create_transient_display (factory,
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g_dbus_method_invocation_return_gerror (invocation, error);
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gdm_dbus_local_display_factory_complete_create_transient_display (skeleton, invocation, id);
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register_factory (GdmLocalDisplayFactory *factory)
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GError *error = NULL;
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factory->priv->connection = g_bus_get_sync (G_BUS_TYPE_SYSTEM, NULL, &error);
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if (factory->priv->connection == NULL) {
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g_critical ("error getting system bus: %s", error->message);
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g_error_free (error);
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factory->priv->skeleton = GDM_DBUS_LOCAL_DISPLAY_FACTORY (gdm_dbus_local_display_factory_skeleton_new ());
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g_signal_connect (factory->priv->skeleton,
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"handle-create-transient-display",
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G_CALLBACK (handle_create_transient_display),
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if (!g_dbus_interface_skeleton_export (G_DBUS_INTERFACE_SKELETON (factory->priv->skeleton),
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factory->priv->connection,
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GDM_LOCAL_DISPLAY_FACTORY_DBUS_PATH,
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g_critical ("error exporting LocalDisplayFactory object: %s", error->message);
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g_error_free (error);
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gdm_local_display_factory_constructor (GType type,
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guint n_construct_properties,
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GObjectConstructParam *construct_properties)
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GdmLocalDisplayFactory *factory;
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factory = GDM_LOCAL_DISPLAY_FACTORY (G_OBJECT_CLASS (gdm_local_display_factory_parent_class)->constructor (type,
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n_construct_properties,
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construct_properties));
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res = register_factory (factory);
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g_warning ("Unable to register local display factory with system bus");
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return G_OBJECT (factory);
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gdm_local_display_factory_class_init (GdmLocalDisplayFactoryClass *klass)
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GObjectClass *object_class = G_OBJECT_CLASS (klass);
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GdmDisplayFactoryClass *factory_class = GDM_DISPLAY_FACTORY_CLASS (klass);
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object_class->get_property = gdm_local_display_factory_get_property;
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object_class->set_property = gdm_local_display_factory_set_property;
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object_class->finalize = gdm_local_display_factory_finalize;
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object_class->constructor = gdm_local_display_factory_constructor;
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factory_class->start = gdm_local_display_factory_start;
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factory_class->stop = gdm_local_display_factory_stop;
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g_type_class_add_private (klass, sizeof (GdmLocalDisplayFactoryPrivate));
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gdm_local_display_factory_init (GdmLocalDisplayFactory *factory)
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factory->priv = GDM_LOCAL_DISPLAY_FACTORY_GET_PRIVATE (factory);
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factory->priv->displays = g_hash_table_new (NULL, NULL);
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gdm_local_display_factory_finalize (GObject *object)
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GdmLocalDisplayFactory *factory;
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g_return_if_fail (object != NULL);
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g_return_if_fail (GDM_IS_LOCAL_DISPLAY_FACTORY (object));
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factory = GDM_LOCAL_DISPLAY_FACTORY (object);
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g_return_if_fail (factory->priv != NULL);
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g_clear_object (&factory->priv->connection);
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g_clear_object (&factory->priv->skeleton);
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g_hash_table_destroy (factory->priv->displays);
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gdm_local_display_factory_stop_monitor (factory);
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G_OBJECT_CLASS (gdm_local_display_factory_parent_class)->finalize (object);
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GdmLocalDisplayFactory *
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gdm_local_display_factory_new (GdmDisplayStore *store)
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if (local_display_factory_object != NULL) {
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g_object_ref (local_display_factory_object);
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local_display_factory_object = g_object_new (GDM_TYPE_LOCAL_DISPLAY_FACTORY,
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"display-store", store,
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g_object_add_weak_pointer (local_display_factory_object,
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(gpointer *) &local_display_factory_object);
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return GDM_LOCAL_DISPLAY_FACTORY (local_display_factory_object);
added
removed
.pc/00git_logind_check.patch/daemon/gdm-local-display-factory.c
