// -*-C++-*-
// This file is a part of the IncludeOS unikernel - www.includeos.org
//
// Copyright 2015 Oslo and Akershus University College of Applied Sciences
// and Alfred Bratterud
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with 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.

#pragma once
#ifndef MEMDISK_HEADER
#define MEMDISK_HEADER

#include "fs/disk.hpp"
#include "fs/memdisk.hpp"

namespace fs
{
  // new singleton interface for the memdisk
  inline Disk& memdisk()
  {
    static Disk    disk {MemDisk::get()};
    return disk;
  }
  // new_shared_memdisk() very likely contains FAT
  inline Disk_ptr shared_memdisk()
  {
    static std::weak_ptr<Disk> disk;

    if(auto ptr = disk.lock())
      return ptr;

    auto ptr = std::make_shared<Disk>(MemDisk::get());
    disk = ptr;
    return ptr;
  }
}

#endif
