#!/bin/sh
#This dumb thing uses far too many Linuxisms, but fuck it.
#It's also done in bash compliant math, so no decimals, yet.
#Format: <script> <programname> <maxloadnum> <sleepinsecs>
PATH=/bin:/sbin:/usr/bin:/usr/sbin
if [ $1"x" == "x" ]; then
  PROGNAME='dnetc'
else
  PROGNAME='$1'
fi
if [ $2"x" == "x" ]; then
  MAXLOAD=`grep processor /proc/cpuinfo | wc -l`
else
  MAXLOAD="$2"
fi
if [ $3"x" == "x" ]; then
  SLEEP=1
else
  SLEEP="$3"
fi
while true; do
  MYPIDS=`pidof $PROGNAME`
  CURLOAD=`awk '{printf "%1d", $1}' /proc/loadavg`
  if [ $MAXLOAD -gt $CURLOAD ]; then
    for PIDS in $MYPIDS; do
     kill -s STOP $PIDS
    done
  else
    for PIDS in $MYPIDS; do
     kill -s CONT $PIDS
    done
  fi
sleep $SLEEP
done