#!/bin/sh
#
# run graphtft-fe

rm -f /tmp/graphtft-fe_stop

case "$1" in
	-k)
		touch /tmp/graphtft-fe_stop
		killproc "/usr/bin/graphtft-fe" 10
		exit $?
		;;
	-r)
		killproc "/usr/bin/graphtft-fe" 10
		exit $?
		;;
	-n)
		norestart=1
		;;
	-*)
		echo "Usage $0 {-k | -r | -n | -s PROG}"
		echo "      -k   kill graphtft-fe"
		echo "      -r   restart graphtft-fe"
		echo "      -n   no restart if an error occur"
		exit 1
		;;
esac

# accept only one instance
ps=$(ps); echo "$ps" | grep "{${0##*/}}" | grep -q -v $$ && { echo "${0##*/} is already running"; exit 1; }

while [ ! -e /tmp/graphtft-fe_stop ]; do
	. /etc/rc.config
	
	ip=${GRAPHTFT_FE_ARGS#*-h }
	ip=${ip%% *}
	while ! { echo quit | nc $ip 2039 &>/dev/null; } do test -e /tmp/graphtft-fe_stop && break; usleep 100000 "#waiting for graphtft"; done
	
	test -e /tmp/graphtft-fe_stop && break
	
	# schnelle wiederholte Neustarts verzögern
	if [ 0$starttime -gt $(( `date +%s` - 15 )) ]; then
		sleep 10 "#delaying graphtft-fe restart"
	fi
	starttime=`date +%s`
	
	# starte graphtft-fe
	eval /usr/bin/graphtft-fe $GRAPHTFT_FE_ARGS >>/var/log/graphtft-fe 2>&1
	status=$?
	
	echo -n "graphtft-fe exits at "; date
	
	test "$norestart" = "1" && break
	test $status = 1 && sleep 3
done

rm -f /tmp/graphtft-fe_stop