#!/bin/sh
# -*- sh -*-
#
# Plugin to monitor the number of PHP processes on the machine.
#
# Copyright Khalid Baheyeldin 2009 http://2bits.com
#
# Parameters:
#
# config (required)
# autoconf (optional - used by munin-config)
#
# Magick markers (optional - used by munin-config and som installation
# scripts):
#%# family=manual
#%# capabilities=autoconf

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

if [ "$1" = "config" ]; then
echo 'graph_title Number of php-cgi processes'
echo 'graph_args --base 1000 -l 0 '
echo 'graph_vlabel number of php-cgi processes'
echo 'graph_category apache'
echo 'graph_info This graph shows the number of php-cgi processes in the system.'
echo 'php_processes.label php-cgi'
echo 'php_processes.draw LINE2'
echo 'php_processes.info The current number of php-cgi processes.'
exit 0
fi

CMD_GREP=`which grep`
if [ ! -e ${CMD_GREP} ]; then
  echo "Command grep (${CMD_GREP}) not found!"
  exit 1
fi
CMD_SED=`which sed`
if [ ! -e ${CMD_SED} ]; then
  echo "Command sed (${CMD_SED}) not found!"
  exit 1
fi
CMD_WC=`which wc`
if [ ! -e ${CMD_WC} ]; then
  echo "Command wc (${CMD_WC}) not found!"
  exit 1
fi

echo -n "php_processes.value "
/bin/ps ax | ${CMD_GREP} -i php-cgi | ${CMD_GREP} -v grep | ${CMD_WC} -l | ${CMD_SED} 's/\t +//' | ${CMD_SED} 's/ *//'