#! /bin/sh
# anders@fupp.net, 2007-09-19
# Shows the amount of virtual memory allocated by Varnish for storing cache
# objects

PATH="$PATH:/usr/local/bin"
export PATH

vversion=`varnishstat -V 2>&1 | egrep "^varnishstat" | perl -p -e "s@varnishstat\s*@@;s@\(@@;s@\)@@;s@varnish-@@"`

pvstat() {
	# $1: vname $2: grabstat
	printf "$1.value "
	case $vversion in
	1.0*) varnishstat -1 | egrep "$2" | awk '{print $1}';;
	*) varnishstat -1 | egrep "$2" | awk '{print $2}';;
	esac
}

case $1 in
autoconf) echo yes;;
config)
	echo 'graph_title Virtual memory allocated'
	echo 'graph_vlabel memory'
	echo 'graph_category varnish'
	echo 'graph_info This graph shows the amount of virtual memory allocated by Varnish for storing cache objects'

	echo 'memory.label memory'
	echo 'memory.type GAUGE'
	echo 'memory.graph yes'
	;;
*)
	pvstat memory 'bytes allocated$'
	;;
esac