#! /bin/sh
# this is intended to be started in preinit.
# 11_bootchart, starts it
# 72_bootchart, fixup mount point after pivot 
#
# program can be killed early with
# bootchart_run_preinit stop

trap "stop; exit 0;" SIGINT SIGTERM 

STOP_AFTER=250
HZ=50

if [ -z "$1" ]
then
	echo "you need to specify start or stop"
	exit 1
fi

start()
{
	/sbin/bootchart-collector $HZ &
}

stop()
{
	echo "bootchart DUMP"
	
	mkdir /tmp/bootchart
	/sbin/bootchart-collector --dump /tmp/bootchart
	cd /tmp/bootchart
	tar -zcf /tmp/bootchart.tgz header *.log
	cd /
	rm -rf /tmp/bootchart
}

case $1 in
    boot) # secret option for preinit
	start
	sleep $STOP_AFTER
	# test to see if someone has manually killed us
	if [ -f /tmp/bootchart.tgz ]
	then
	    exit 0
	fi
	stop
	;;
    start)
	start
	;;
    stop)
	stop
	;;
    *)
	echo "you need to specify start or stop, not $1"
	exit 1
	;;
esac