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gdm/gdm-3.4.1-plymouth.patch

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From c56fbb65277e8a17db5e0939f0b02e41c4ec784c Mon Sep 17 00:00:00 2001
From: Ray Strode <rstrode@redhat.com>
Date: Fri, 27 Nov 2009 18:52:54 -0500
Subject: [PATCH] daemon: enable smooth transition between plymouth and X
This commit adds optional support for interacting with plymouth
from gdm. This feature can be enabled by passing --with-plymouth
to configure.
Hopefully, this will enable the various distributions that use
plymouth to drop a patch.
https://bugzilla.gnome.org/show_bug.cgi?id=572173
---
configure.ac | 32 +++++++++++++
daemon/gdm-server.c | 60 +++++++++++++++++++++++++
daemon/gdm-server.h | 3 +
daemon/gdm-simple-slave.c | 106 ++++++++++++++++++++++++++++++++++++++++++++-
4 files changed, 200 insertions(+), 1 deletions(-)
diff --git a/configure.ac b/configure.ac
index 35e6e04..81ea23e 100644
--- a/configure.ac
+++ b/configure.ac
@@ -264,6 +264,10 @@ AC_ARG_WITH(systemd,
AS_HELP_STRING([--with-systemd],
[Add systemd support @<:@default=auto@:>@]),
[with_systemd=$withval], [with_systemd=auto])
+AC_ARG_WITH(plymouth,
+ AS_HELP_STRING([--with-plymouth],
+ [Add plymouth support @<:@default=auto@:>@]),
+ [with_plymouth=$withval], [with_plymouth=auto])
AC_ARG_WITH(at-spi-registryd-directory,
AS_HELP_STRING([--with-at-spi-registryd-directory],
@@ -952,6 +956,33 @@ AC_SUBST(SYSTEMD_X_SERVER)
AC_DEFINE_UNQUOTED(SYSTEMD_X_SERVER,"$SYSTEMD_X_SERVER",[Path to systemd X server wrapper])
dnl ---------------------------------------------------------------------------
+dnl - Check for plymouth support
+dnl ---------------------------------------------------------------------------
+PKG_CHECK_MODULES(PLYMOUTH,
+ [ply-boot-client],
+ [have_plymouth=yes], [have_plymouth=no])
+
+if test "x$with_plymouth" = "xauto" ; then
+ if test x$have_plymouth = xno ; then
+ use_plymouth=no
+ else
+ use_plymouth=yes
+ fi
+else
+ use_plymouth="$with_plymouth"
+fi
+
+if test "x$use_plymouth" != "xno" ; then
+ if test "x$have_plymouth" = "xno"; then
+ AC_MSG_ERROR([Plymouth support explicitly required, but plymouth not found])
+ fi
+
+ AC_DEFINE(WITH_PLYMOUTH, 1, [Define to enable plymouth support])
+fi
+AC_SUBST(PLYMOUTH_CFLAGS)
+AC_SUBST(PLYMOUTH_LIBS)
+
+dnl ---------------------------------------------------------------------------
dnl - Check for D-Bus
dnl ---------------------------------------------------------------------------
@@ -1537,6 +1568,7 @@ echo \
SELinux support: ${with_selinux}
ConsoleKit support: ${use_console_kit}
systemd support: ${use_systemd}
+ plymouth support: ${use_plymouth}
UPower support: ${have_upower}
Build with RBAC: ${msg_rbac_shutdown}
"
diff --git a/daemon/gdm-server.c b/daemon/gdm-server.c
index d0d8ff9..6f2a939 100644
--- a/daemon/gdm-server.c
+++ b/daemon/gdm-server.c
@@ -32,6 +32,7 @@
#include <pwd.h>
#include <grp.h>
#include <signal.h>
+#include <sys/ioctl.h>
#include <sys/resource.h>
#ifdef HAVE_SYS_PRCTL_H
@@ -42,6 +43,10 @@
#include <systemd/sd-daemon.h>
#endif
+#ifdef WITH_PLYMOUTH
+#include <linux/vt.h>
+#endif
+
#include <glib.h>
#include <glib/gi18n.h>
#include <glib/gstdio.h>
@@ -751,6 +756,61 @@ gdm_server_spawn (GdmServer *server,
return ret;
}
+#ifdef WITH_PLYMOUTH
+static int
+get_active_vt (void)
+{
+ int console_fd;
+ struct vt_stat console_state = { 0 };
+
+ console_fd = open ("/dev/tty0", O_RDONLY | O_NOCTTY);
+
+ if (console_fd < 0) {
+ goto out;
+ }
+
+ if (ioctl (console_fd, VT_GETSTATE, &console_state) < 0) {
+ goto out;
+ }
+
+out:
+ if (console_fd >= 0) {
+ close (console_fd);
+ }
+
+ return console_state.v_active;
+}
+
+static char *
+get_active_vt_as_string (void)
+{
+ int vt;
+
+ vt = get_active_vt ();
+
+ if (vt <= 0) {
+ return NULL;
+ }
+
+ return g_strdup_printf ("vt%d", vt);
+}
+
+gboolean
+gdm_server_start_on_active_vt (GdmServer *server)
+{
+ gboolean res;
+ char *vt;
+
+ g_free (server->priv->command);
+ server->priv->command = g_strdup (X_SERVER " -background none -logverbose 7");
+ vt = get_active_vt_as_string ();
+ res = gdm_server_spawn (server, vt);
+ g_free (vt);
+
+ return res;
+}
+#endif
+
/**
* gdm_server_start:
* @disp: Pointer to a GdmDisplay structure
diff --git a/daemon/gdm-server.h b/daemon/gdm-server.h
index b53d68e..827f7fa 100644
--- a/daemon/gdm-server.h
+++ b/daemon/gdm-server.h
@@ -57,6 +57,9 @@ GdmServer * gdm_server_new (const char *display_id,
const char *seat_id,
const char *auth_file);
gboolean gdm_server_start (GdmServer *server);
+#ifdef HAVE_PLYMOUTH
+gboolean gdm_server_start_on_active_vt (GdmServer *server);
+#endif
gboolean gdm_server_stop (GdmServer *server);
char * gdm_server_get_display_device (GdmServer *server);
diff --git a/daemon/gdm-simple-slave.c b/daemon/gdm-simple-slave.c
index fc8649c..7c709a6 100644
--- a/daemon/gdm-simple-slave.c
+++ b/daemon/gdm-simple-slave.c
@@ -93,6 +93,9 @@ struct GdmSimpleSlavePrivate
#ifdef HAVE_LOGINDEVPERM
gboolean use_logindevperm;
#endif
+#ifdef WITH_PLYMOUTH
+ guint plymouth_is_running : 1;
+#endif
};
enum {
@@ -1204,6 +1207,74 @@ on_start_session_later (GdmGreeterServer *session,
slave->priv->start_session_when_ready = FALSE;
}
+#ifdef WITH_PLYMOUTH
+static gboolean
+plymouth_is_running (void)
+{
+ int status;
+ gboolean res;
+ GError *error;
+
+ error = NULL;
+ res = g_spawn_command_line_sync ("/bin/plymouth --ping",
+ NULL, NULL, &status, &error);
+ if (! res) {
+ g_debug ("Could not ping plymouth: %s", error->message);
+ g_error_free (error);
+ return FALSE;
+ }
+
+ return WIFEXITED (status) && WEXITSTATUS (status) == 0;
+}
+
+static void
+plymouth_prepare_for_transition (GdmSimpleSlave *slave)
+{
+ gboolean res;
+ GError *error;
+
+ error = NULL;
+ res = g_spawn_command_line_sync ("/bin/plymouth deactivate",
+ NULL, NULL, NULL, &error);
+ if (! res) {
+ g_warning ("Could not deactivate plymouth: %s", error->message);
+ g_error_free (error);
+ }
+}
+
+static void
+plymouth_quit_with_transition (GdmSimpleSlave *slave)
+{
+ gboolean res;
+ GError *error;
+
+ error = NULL;
+ res = g_spawn_command_line_sync ("/bin/plymouth quit --retain-splash",
+ NULL, NULL, NULL, &error);
+ if (! res) {
+ g_warning ("Could not quit plymouth: %s", error->message);
+ g_error_free (error);
+ }
+ slave->priv->plymouth_is_running = FALSE;
+}
+
+static void
+plymouth_quit_without_transition (GdmSimpleSlave *slave)
+{
+ gboolean res;
+ GError *error;
+
+ error = NULL;
+ res = g_spawn_command_line_sync ("/bin/plymouth quit",
+ NULL, NULL, NULL, &error);
+ if (! res) {
+ g_warning ("Could not quit plymouth: %s", error->message);
+ g_error_free (error);
+ }
+ slave->priv->plymouth_is_running = FALSE;
+}
+#endif
+
static void
setup_server (GdmSimpleSlave *slave)
{
@@ -1223,6 +1294,12 @@ setup_server (GdmSimpleSlave *slave)
*/
gdm_slave_save_root_windows (GDM_SLAVE (slave));
+#ifdef WITH_PLYMOUTH
+ /* Plymouth is waiting for the go-ahead to exit */
+ if (slave->priv->plymouth_is_running) {
+ plymouth_quit_with_transition (slave);
+ }
+#endif
}
static void
@@ -1426,6 +1503,12 @@ on_server_exited (GdmServer *server,
g_debug ("GdmSimpleSlave: server exited with code %d\n", exit_code);
gdm_slave_stopped (GDM_SLAVE (slave));
+
+#ifdef WITH_PLYMOUTH
+ if (slave->priv->plymouth_is_running) {
+ plymouth_quit_without_transition (slave);
+ }
+#endif
}
static void
@@ -1438,6 +1521,12 @@ on_server_died (GdmServer *server,
g_strsignal (signal_number));
gdm_slave_stopped (GDM_SLAVE (slave));
+
+#ifdef WITH_PLYMOUTH
+ if (slave->priv->plymouth_is_running) {
+ plymouth_quit_without_transition (slave);
+ }
+#endif
}
static gboolean
@@ -1484,7 +1573,17 @@ gdm_simple_slave_run (GdmSimpleSlave *slave)
G_CALLBACK (on_server_ready),
slave);
- res = gdm_server_start (slave->priv->server);
+#ifdef WITH_PLYMOUTH
+ slave->priv->plymouth_is_running = plymouth_is_running ();
+
+ if (slave->priv->plymouth_is_running) {
+ plymouth_prepare_for_transition (slave);
+ res = gdm_server_start_on_active_vt (slave->priv->server);
+ } else
+#endif
+ {
+ res = gdm_server_start (slave->priv->server);
+ }
if (! res) {
g_warning (_("Could not start the X "
"server (your graphical environment) "
@@ -1494,6 +1593,11 @@ gdm_simple_slave_run (GdmSimpleSlave *slave)
"In the meantime this display will be "
"disabled. Please restart GDM when "
"the problem is corrected."));
+#ifdef WITH_PLYMOUTH
+ if (slave->priv->plymouth_is_running) {
+ plymouth_quit_without_transition (slave);
+ }
+#endif
exit (1);
}
--
1.7.8.6
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