#!/bin/sh
# Start/stop/restart the CDEMU Daemon:

PATH=/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin

numDevices='8'
busType=''

cdemud_start() {
  if ! lsmod | grep vhba > /dev/null ; then
    echo -n "Load Virtual SCSI HBA module... "
    if modprobe vhba ; then
      echo "[OK]"
    else
      echo "[FAILED]"
      return 1
    fi
  fi
  sleep 1
  echo "Start CDEmu daemon"
  if [ "$busType" == "" ]; then
    cdemud --daemonize --num-devices=$numDevices
  else
    cdemud --daemonize --num-devices=$numDevices --bus=$busType
  fi
}

cdemud_stop() {
  echo "Stop CDEmu daemon"
  cdemudPid=`pidof cdemud`
  if [ -n "$cdemudPid" ]; then
    kill $cdemudPid
    sleep 1
    modprobe -r vhba
  fi
}

cdemud_status() {
  cdemudPid=`pidof cdemud`
  if [ -n "$cdemudPid" ]; then
    echo "CDEmu daemon is running with PID $cdemudPid"
    if which cdemu &> /dev/null; then
      cdemu status
      cdemu device-mapping
    fi
  else
    echo "CDEmu daemon is not running"
  fi
}

case "$1" in
'start')
  cdemud_start
  ;;
'stop')
  cdemud_stop
  ;;
'status')
  cdemud_status
  ;;
'restart')
  cdemud_stop
  sleep 1
  cdemud_start
  ;;
*)
  echo "usage $0 start|stop|restart|status"
esac