#!/bin/bash
# Copyright 2012 Citrix Systems, Inc. Licensed under the
# Apache License, Version 2.0 (the "License"); you may not use this
# file except in compliance with the License.  Citrix Systems, Inc.
# reserves all rights not expressly granted by the License.
# You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
# 
# Automatically generated by addcopyright.py at 04/03/2012
#set -x
 
usage() {
  printf "Usage: %s [uuid of this host] [interval in seconds]\n" $(basename $0) >&2

}

if [ -z $1 ]; then
  usage
  exit 2
fi

if [ -z $2 ]; then
  usage
  exit 3
fi


date=`date +%s`
hbs=`lvscan | grep hb-$1 | awk '{print $2}'`
for hb in $hbs
do
  hb=${hb:1:`expr ${#hb} - 2`}
  active=`lvscan | grep $hb | awk '{print $1}'`
  if [ "$active" == "inactive" ]; then
    lvchange -ay $hb
    if [ ! -L $hb ]; then
      continue;
    fi
  fi
  ping=`dd if=$hb bs=1 count=100`
  if [ $? -ne 0 ]; then
    continue;
  fi
  diff=`expr $date - $ping`
  if [ $diff -lt $2 ]; then
    echo "=====> ALIVE <====="
    exit 0;    
  fi
done

hbs=`ls -l /var/run/sr-mount/*/hb-$1 | awk '{print $9}'`
for hb in $hbs
do
  ping=`cat $hb`
  if [ $? -ne 0 ]; then
    continue;
  fi
  diff=`expr $date - $ping`
  if [ $diff -lt $2 ]; then
    echo "=====> ALIVE <====="
    exit 0;    
  fi
done

echo "=====> DEAD <======"