#!/bin/sh
# -*- sh -*-


MUNIN_LIBDIR=/usr/share/munin/

if [ -z "$MUNIN_LIBDIR" ]; then
	MUNIN_LIBDIR="`dirname $(dirname "$0")`"
fi

. $MUNIN_LIBDIR/plugins/plugin.sh

if [ "$1" = "autoconf" ]; then
	echo yes
	exit 0
fi

if [ -z "$names" -o -z "$os" ]; then
  echo "Configuration required"
  exit 1
fi

if [ "$1" = "config" ]; then
	echo graph_title Total memory usage
	echo 'graph_category processes'
	echo 'graph_args --base 1024 --vertical-label memory -l 0'
	for name in $names; do
	    	fieldname=$(clean_fieldname $name)
	    	REGEX='\<'"$name"'\>'

		echo "$fieldname.label $name"
		echo "$fieldname.draw LINE2"
		echo "$fieldname.info Processes matching this regular expression: /$REGEX/"
	done
	exit 0
fi

for name in $names; do
        fieldname=$(clean_fieldname $name)
	printf "$fieldname.value "

	if [ "$os" = "freebsd" ]; then
		ps awxo rss,command | grep -w $name | grep -v grep | /usr/bin/awk '{ total += $1 } END { print total * 1024 }'
	else
		ps auxww | grep -w $name | grep -v grep | sed -re 's/[ ]{1,}/ /g' | /usr/bin/cut -d ' ' -f 6 | /usr/bin/awk '{ total = total + $1 } END { print total * 1024 }'
	fi
done