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Current Path : /etc/rubrik/
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Current File : //etc/rubrik/start_stop.sh

if [ -f "/etc/init.d/functions" ]
then
  source /etc/init.d/functions
fi

exists_start_stop() {
  command -v "start-stop-daemon" > /dev/null 2>&1
}

exists_daemon() {
  command -v "daemon" > /dev/null 2>&1
}

exists_startproc() {
  command -v "startproc" > /dev/null 2>&1
}

exists_killproc() {
  command -v "killproc" > /dev/null 2>&1
}

exists_pgrep() {
  command -v "pgrep" > /dev/null 2>&1
}

exists_pkill() {
  command -v "pkill" > /dev/null 2>&1
}

exists_pidof() {
  command -v "pidof" > /dev/null 2>&1
}

get_pid_from_name() {
  local PROCESS_NAME=$1
  if exists_pidof; then
    # -o %PPID : omit the parent PID
    # -s : return only one pid
    pidof -s -o%PPID $PROCESS_NAME
  elif exists_pgrep; then
    # We prefer pgrep first because -n will
    # give latest pid
    pgrep -n -u root -f /usr/bin/rubrik/$PROCESS_NAME
  else
    # last resort
    ps -ef | grep $PROCESS_NAME | grep -v grep | awk '{print $2}'
  fi
}

check_and_kill_proc() {
  local PROCESS_NAME=$1
  if [ -z $PROCESS_NAME ]; then
    echo "Failed to get process name"
    exit 1
  fi
  pids=`get_pid_from_name $PROCESS_NAME`
  if [ ! -z "${pids}" ]; then
    for pid in $pids; do
      kill -9 "$pid" > /dev/null 2>&1
      RETVAL="$?"
    done
  else
    if exists_pkill; then
      # As last resort we use pkill and process name
      # We do not expect multilple processes of same
      # agent to run on host at a time so the pattern
      # should match exact agent process
      pkill -f /usr/bin/rubrik/${PROCESS_NAME}
    fi
  fi
}

stop_with_ssd() {
  # TODO(soham) Do we need start-stop-daemon at all?
  # If file does not exist, nothing was installed
  local PROCESS_NAME=$1
  if [ -z $PROCESS_NAME ]; then
    echo "Failed to get process name"
    exit 1
  fi
  if [ -e $PIDFILE ]
  then
    pid=`cat $PIDFILE 2>/dev/null`
    kill -9 $pid > /dev/null 2>&1
    RETVAL="$?"
    # If 1 is returned, process is not there, which
    # should not be an error for stop
    [ $RETVAL = 1 ] && RETVAL=0
    # If kill succeeded or process does not exist, remove
    # file
    [ $RETVAL = 0 ] && rm -f "$PIDFILE"
  fi
  # Make sure no instance of agent process is running.
  check_and_kill_proc $PROCESS_NAME
}

start_with_ssd() {
  local PROCESS_NAME=$1
  if [ -z $PROCESS_NAME ]; then
    echo "Failed to get process name"
    exit 1
  fi
  stop_with_ssd $PROCESS_NAME
  # Create the pidfile if it doesn't exist.
  if [ ! -f $PIDFILE ]; then
    touch $PIDFILE
  fi
  start-stop-daemon --start --quiet --pidfile $PIDFILE \
    --exec $DAEMON -- $DAEMON_OPTS
  RETVAL=$?
  pid=`get_pid_from_name $PROCESS_NAME`
  if [ -n "$pid" ]; then
    echo $pid > "$PIDFILE"
  fi
}

stop_with_killproc() {
  local PROCESS_NAME=$1
  if [ -z $PROCESS_NAME ]; then
    echo "Failed to get process name"
    exit 1
  fi
  # If file does not exist, nothing was installed
  if [ -e $PIDFILE ]
  then
    killproc -p "$PIDFILE" "$DAEMON" >/dev/null 2>&1
    RETVAL="$?"
    # If 7 is returned, process is not there, which
    # should not be an error for stop
    [ $RETVAL = 7 ] && RETVAL=0
    # If kill succeeded or process does not exist, remove
    # file
    [ $RETVAL = 0 ] && rm -f "$PIDFILE"
  fi
  # Make sure no instance of agent process is running.
  check_and_kill_proc $PROCESS_NAME
}

start_with_daemon() {
  local PROCESS_NAME=$1
  if [ -z $PROCESS_NAME ]; then
    echo "Failed to get process name"
    exit 1
  fi
  stop_with_killproc $PROCESS_NAME
  daemon --user="root" --pidfile="$PIDFILE" "$DAEMON $DAEMON_OPTS"
  RETVAL=$?
  pid=`get_pid_from_name $PROCESS_NAME`
  if [ -n "$pid" ]; then
    echo $pid > "$PIDFILE"
  fi
}

start_with_startproc() {
  local PROCESS_NAME=$1
  if [ -z $PROCESS_NAME ]; then
    echo "Failed to get process name"
    exit 1
  fi
  stop_with_killproc $PROCESS_NAME
  startproc -u 0 -p="$PIDFILE" $DAEMON $DAEMON_OPTS
  RETVAL=$?
  pid=`get_pid_from_name $PROCESS_NAME`
  if [ -n "$pid" ]; then
    echo $pid > "$PIDFILE"
  fi
}

start() {
  local PROCESS_NAME=$1
  if [ -z $PROCESS_NAME ]; then
    echo "Failed to get process name"
    exit 1
  fi
  echo "Starting daemon: "$PROCESS_NAME
  if exists_start_stop; then
    start_with_ssd $PROCESS_NAME
  elif exists_startproc; then
    start_with_startproc $PROCESS_NAME
  elif exists_daemon; then
    start_with_daemon $PROCESS_NAME
  else
    echo "Cannot find appropriate daemon management binary"
    return 1
  fi
}

stop() {
  local PROCESS_NAME=$1
  local CHILD_PROCESS_NAME=$2
  if [ -z $PROCESS_NAME ]; then
    echo "Failed to get process name"
    exit 1
  fi
  echo "Stopping daemon: "$PROCESS_NAME
  if exists_start_stop; then
    stop_with_ssd $PROCESS_NAME
    if [ ! -z $CHILD_PROCESS_NAME ]; then
      # Make sure no instance of child process is running.
      stop_with_ssd $CHILD_PROCESS_NAME
    fi
  elif exists_killproc; then
    stop_with_killproc $PROCESS_NAME
    if [ ! -z $CHILD_PROCESS_NAME ]; then
      # Make sure no instance of child process is running.
      stop_with_killproc $CHILD_PROCESS_NAME
    fi
  else
    echo "Cannot find appropriate daemon management binary"
    return 1
  fi
}

RETVAL=0

COMMAND=$1
PROCESS_NAME=$2
CHILD_PROCESS_NAME=$3
if [ -z $PROCESS_NAME ]; then
  echo "Failed to get process name"
  exit 1
fi

case $COMMAND in
  start)
    start $PROCESS_NAME
    echo
  ;;
  stop)
    stop $PROCESS_NAME $CHILD_PROCESS_NAME
    echo
  ;;
  restart)
    stop $PROCESS_NAME $CHILD_PROCESS_NAME
    echo
    start $PROCESS_NAME
    RETVAL=$?
    echo
  ;;
  status)
    echo -n "Status daemon: "$PROCESS_NAME
    if [ -f $PIDFILE ]
    then
            if [ -e /proc/`cat $PIDFILE 2>/dev/null` ]
            then
                echo " [UP]"
                RETVAL=0
            else
                echo " [DOWN]"
                RETVAL=3
            fi
    else
      echo " [DOWN]"
      RETVAL=3
    fi
    ;;
  *)
    echo "Usage: "$COMMAND" {start|stop|restart|status}"
    RETVAL=1
esac
exit $RETVAL