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

: << =cut

=head1 NAME

apache_threads -Indicate the memdium number of threads for all child process

=head1 CONFIGURATION

[apache_*]
env.apuser user_runnin_apache
env.binname apache_binary_name

=head1 AUTHOR

Ricardo Fraile <rfrail3@yahoo.es>

=head1 LICENSE

GPLv2

=head1 MAGICK MARKERS

 #%# family=auto
 #%# capabilities=autoconf

=cut

. $MUNIN_LIBDIR/plugins/plugin.sh


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

if [ "$1" = "config" ]; then

	echo 'graph_title Medium number of threads for child process.'
	echo 'graph_args --base 1000 -l 0 '
	echo 'graph_vlabel Threads'
	echo 'graph_scale no'
	echo 'graph_category webserver'
	echo 'graph_info Indicate the memdium number of threads for all child process.'



        echo "threads.label threads"
        echo "threads.type GAUGE"
        echo "threads.min 0"

	exit 0
fi

SUM=0
COUNT=0
USR=$apuser
PROCS=$binname


# Catch process pid
VAL1=`ps auxf | grep ${PROCS} | grep ^${USR} | grep -v grep | awk '{print $2}' `

# Count pids
COUNT=`ps auxf | grep ${PROCS} | grep ^${USR} | grep -v grep | wc -l`

# Read threads per pid
for i in $VAL1; do

        VAL2="$VAL2 `cat /proc/$i/status | grep 'Threads:' | awk '{print $2}'`"
done

# Sun threads
for z in ${VAL2}; do

        SUM=`expr $SUM + $z`

done


echo "threads.value `echo $((SUM /  $COUNT))`"