From f54e4a2ccd3c73f0e779303243dc9d6861408a16 Mon Sep 17 00:00:00 2001
From: "Casper Ti. Vector" <CasperVector@gmail.com>
Date: Sat, 7 Apr 2012 19:27:53 +0800
Subject: [PATCH] Move code used to launch X to cdm-xlaunch(1), since it's
 relatively independent code and thus would be sometimes useful for running as
 a standalone program.

---
 src/cdm         | 40 +++------------------
 src/cdm-xlaunch | 92 +++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 96 insertions(+), 36 deletions(-)
 create mode 100755 src/cdm-xlaunch

diff --git a/src/cdm b/src/cdm
index 4787f11..0964c17 100755
--- a/src/cdm
+++ b/src/cdm
@@ -197,43 +197,11 @@ xstart() {
 
 	serverargs=":${display} ${serverargs} vt$((xtty+display))"
 
-	if $(yesno consolekit); then #do first to avoid race conditions
-		ebegin "Waiting for ConsoleKit to register X session (timeout ${cktimeout}s)..."
-
-		sleep $cktimeout &
-		clockpid=$!
-
-		#have to store pid of dbus-monitor this way since dbus-monitor will run until killed.
-		fifo=$(mktemp --dry-run)
-		mkfifo --mode=700 $fifo
-		(dbus-monitor --system type=signal,interface=org.freedesktop.ConsoleKit.Seat,member=SessionAdded & echo $! > $fifo ) | \
-		 sed -un 's|[[:space:]]*object path \"\(/[a-zA-Z0-9/]*\)\"|\1|p' | while read object; do
-			if dbus-send --system --print-reply  --dest=org.freedesktop.ConsoleKit "$object" org.freedesktop.ConsoleKit.Session.GetX11Display | \
-		       	  grep -qF "$display"; then break
-			fi
-		 done &
-
-		 read dbuspid < $fifo
-		 rm -f $fifo
+	$(yesno consolekit) && launchflags="-c -t $cktimeout"
+	if ! eval cdm-xlaunch $launchflags -- $bin -- $serverargs; then
+		ewarn "\`cdm-xlaunch' exited unsuccessfully."
+		exit 1
 	fi
-
-	# Conform to POSIX and do not use `>&' here.
-	sh -i -c "(startx $wm_bin -- ${serverargs} > /dev/null 2>&1 &)"
-
-	if [[ -n $clockpid ]]; then
-		#if wait returns with a value >128, it was interrupted by the trap, so registration was sucessful.
-		if wait $clockpid; then
-			eend "Timed out, giving up.\nCheck to see if you are wrapping your session with ck-launch-session or increase the timeout."
-			kill $dbuspid
-			exit 1
-		else
-			eend 0
-			kill $dbuspid $clockpid
-			exit 0
-		fi
-	fi
-
-	exit 0
 }
 mainmenu
 
diff --git a/src/cdm-xlaunch b/src/cdm-xlaunch
new file mode 100755
index 0000000..b9a3a82
--- /dev/null
+++ b/src/cdm-xlaunch
@@ -0,0 +1,92 @@
+#!/bin/bash
+#
+#   CDM: The Console Display Manager
+#
+#   Copyright (C) 2009-2011, Daniel J Griffiths <ghost1227@archlinux.us>
+#   Thanks to:
+#
+#       Andrwe          beta-testing and submitting the fix for the all
+#                       important X incrementation function
+#       brisbin33       code cleanup
+#       tigrmesh        finding a critical issue with the gnome-session handler
+#       Profjim         several incredibly useful patches
+#       lambchops468    consolekit and hibernation patches
+#
+#   This program 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 of the License, or
+#   (at your option) any later version.
+#   
+#   This program 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., 51 Franklin Street, Fifth Floor, Boston,
+#   MA 02110-1301, USA.
+
+name=$(basename "$0")
+consolekit=false
+cktimeout=30
+source /etc/init.d/functions.sh
+
+args=`getopt -n "$name" -o ct: -l consolekit,timeout: -- "$@"` || exit 1
+eval set -- "$args"
+for arg in "$@"
+do
+	case $arg in
+		'--consolekit' | '-c')
+			consolekit=true; shift
+			;;
+		'--timeout' | '-t')
+			shift
+			cktimeout=$1; shift
+			;;
+		'--')
+			shift
+			break
+			;;
+	esac
+done
+
+# Do first to avoid race conditions.
+if $consolekit; then
+	ebegin "$name: waiting for ConsoleKit to register X session"
+	sleep "$cktimeout" & clockpid=$!
+	dbuspidfifo=$(mktemp --dry-run --tmpdir $name.XXXXXXXX)
+	if ! mkfifo "$dbuspidfifo"; then
+		eend "$name: failed to create FIFO \`$fifo'."
+		exit 1
+	fi
+
+	(dbus-monitor --system 'type=signal,interface=org.freedesktop.ConsoleKit.Seat,member=SessionAdded' & echo $! > "$dbuspidfifo") |
+		sed -un 's@[[:space:]]*object path \"\(/[a-zA-Z0-9/]*\)\"@\1@p' | while read object; do
+			if dbus-send --system --print-reply --dest='org.freedesktop.ConsoleKit' "$object" 'org.freedesktop.ConsoleKit.Session.GetX11Display' |
+				grep -qF "$display"
+			then
+				kill "$clockpid"
+				break
+			fi
+		done &
+	dbuspid=$(<"$dbuspidfifo"); rm -f "$dbuspidfifo"
+fi
+
+# Conform to POSIX and do not use `>&' here.
+sh -i -c "(startx $* > /dev/null 2>&1 &)"
+
+# If `wait' returns with a value >128, it was interrupted by the trap, so registration was sucessful.
+if [[ -n "$clockpid" ]]; then
+	if wait "$clockpid" >& /dev/null
+	then
+		kill "$dbuspid"
+		eend "$name: ConsoleKit registration timed out."
+		exit 1
+	else
+		kill "$dbuspid"
+		eend 0
+		exit 0
+	fi
+fi
+