fastxdm

xdmfast (text/plain), 3.31 KB, created by Paul Pacheco on 2004-11-15 08:00:52 UTC

#!/sbin/runscript
# Copyright 1999-2004 Gentoo Foundation
# Distributed under the terms of the GNU General Public License, v2
# $Header: /home/cvsroot/gentoo-x86/x11-base/xfree/files/4.3.99.8/xdm.start,v 1.1 2003/07/11 22:54:09 spyderous Exp $

# This is here to serve as a note to myself, and future developers.
#
# Any Display manager (gdm,kdm,xdm) have the following problem:  if
# it is started before any getty, and no vt is specified, it will
# usually run on vt2.  When the getty on vt2 then starts, and the
# DM is already started, the getty will take control of the keyboard,
# leaving us with a "dead" keyboard.
#
# Resolution: add the following line to /etc/inittab
#
#  x:a:once:/etc/X11/startDM.sh
#
# and have /etc/X11/startDM.sh start the DM in daemon mode if
# a lock is present (with the info of what DM should be started),
# else just fall through.
#
# How this basically works, is the "a" runlevel is a additional
# runlevel that you can use to fork processes with init, but the
# runlevel never gets changed to this runlevel.  Along with the "a"
# runlevel, the "once" key word means that startDM.sh will only be
# run when we specify it to run, thus eliminating respawning
# startDM.sh when "xdm" is not added to the default runleve, as was
# done previously.
#
# This script then just calls "tellinit a", and init will run
# /etc/X11/startDM.sh after the current runlevel completes (this
# script should only be added to the actual runlevel the user is
# using).
#
# Martin Schlemmer
# aka Azarah
# 04 March 2002


# Start X Font Server before X
depend() {
	use xfs hotplug
}

setup_dm() {
	source /etc/profile.env
	export PATH="/bin:/sbin:/usr/bin:/usr/sbin:${ROOTPATH}"

	local MY_XDM="$(echo ${DISPLAYMANAGER} | awk '{ print tolower($1) }')"
	case "${MY_XDM}" in
		kdm|kde|kde2|kde3)
			EXE="$(which kdm)"
			;;
		entrance*)
			EXE="$(which entranced)"
			;;
		gdm|gnome)
			EXE=/usr/bin/gdm
			;;
		wdm)
			EXE=/usr/bin/wdm
			;;
		*)
			EXE=
			for x in /usr/bin /usr/X11R6/bin
			do
				# Fix #65586, where MY_XDM is empty so EXE=somedir
				[ -x "${x}/${MY_XDM}" -a -f "${x}/${MY_XDM}" ] \
					&& EXE="${x}/${MY_XDM}"
			done
			[ -z "${EXE}" ] && EXE="/usr/X11R6/bin/xdm"
			;;
	esac

	test ! -x "${EXE}" && EXE=/usr/X11R6/bin/xdm

	SERVICE="${EXE##*/}"
}

start() {
	local result
	
	setup_dm
	
	ebegin "Starting Display Manager ${SERVICE}"
	
	# Great new Gnome2 feature, AA
	# We enable this by default
	export GDK_USE_XFT=1
	save_options "service" "${EXE}"
	
	/sbin/start-stop-daemon --start --quiet --exec ${EXE}
	result="$?"
	
	wait;
        
	if [ "${retval}" -ne 0 ]
	then
		# make sure we do not have a misbehaving DM
		killall -9 ${EXE##*/}
	fi
	
	eend ${retval} "Error stopping Display Manager"
}

stop() {
        
	setup_dm
	
	local retval=0
        local curvt="$(fgconsole)"
        local myexe="$(get_options "service")"
        local myservice="${myexe##*/}"

        ebegin "Stopping ${myservice}"
        rm -f ${svcdir}/options/xdm/service

        if [ "$(ps -A | grep -e "${myservice}")" ]
        then
                start-stop-daemon --stop --quiet \
                        --exe ${myexe} &>/dev/null

                retval=$?
        else
                retval=1
        fi

        #switch back to original vt
        chvt "${curvt}" &>/dev/null
        eend ${retval} "Error stopping ${myservice}."

        return ${retval}
}