#!/bin/sh
################################################################################
#      This file is part of OpenELEC - http://www.openelec.tv
#      Copyright (C) 2009-2014 Stephan Raue (stephan@openelec.tv)
#
#  OpenELEC is free software: you can redistribute it and/or modify
#  it under the terms of the GNU General Public License as published by
#  the Free Software Foundation, either version 2 of the License, or
#  (at your option) any later version.
#
#  OpenELEC is distributed in the hope that it will be useful,
#  but WITHOUT ANY WARRANTY; without even the implied warranty of
#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#  GNU General Public License for more details.
#
#  You should have received a copy of the GNU General Public License
#  along with OpenELEC.  If not, see <http://www.gnu.org/licenses/>.
################################################################################

. /etc/swap.conf
. /etc/profile

if [ -f /storage/.config/swap.conf ]; then
  . /storage/.config/swap.conf
fi

if [ -e /dev/.storage_netboot ] ; then
  logger -t Boot "### netbooting... swap disabled ###"
  exit 0
fi

if [ ! "$SWAP_ENABLED" = yes ] ; then
  logger -t Boot "### swap disabled via configfile ###"
  exit 0
fi

SWAP=`blkid -t TYPE="swap" -o device`

case $1 in
  create)
    if [ -z "$SWAP" -a ! -f "$SWAPFILE" ]; then
      mkdir -p `dirname $SWAPFILE`
      dd if=/dev/zero of=$SWAPFILE bs=1M count=$SWAPFILESIZE
      chmod 0600 $SWAPFILE
      mkswap $SWAPFILE
    fi
    ;;
  mount)
    [ -z "$SWAP" -a -f "$SWAPFILE" ] && SWAP=$SWAPFILE
    for i in $SWAP; do
      swapon -p 10000 $SWAP
    done
    ;;
  unmount)
    swapoff -a
    ;;
esac
