text: /*
   * Copyright (c) 2020, Liav A. <liavalb@hotmail.co.il>
   * All rights reserved.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions are met:
   *
   * 1. Redistributions of source code must retain the above copyright notice, this
   *    list of conditions and the following disclaimer.
   *
   * 2. Redistributions in binary form must reproduce the above copyright notice,
   *    this list of conditions and the following disclaimer in the documentation
   *    and/or other materials provided with the distribution.
   *
   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
   * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
   * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
   * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
   * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
   * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
   * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
   * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   */
  
  #include <Kernel/Storage/Partition/DiskPartitionMetadata.h>
  
  namespace Kernel {
  DiskPartitionMetadata::DiskPartitionMetadata(u64 start_block, u64 end_block, ByteBuffer partition_type)
      : m_start_block(start_block)
      , m_end_block(end_block)
      , m_partition_type(partition_type)
  {
      ASSERT(!m_partition_type.is_empty());
  }
  DiskPartitionMetadata::DiskPartitionMetadata(u64 start_block, u64 end_block, ByteBuffer partition_guid, ByteBuffer unique_guid, u64 special_attributes, String name)
      : m_start_block(start_block)
      , m_end_block(end_block)
      , m_partition_type(partition_guid)
      , m_unique_guid(unique_guid)
      , m_attributes(special_attributes)
      , m_name(name)
  {
      ASSERT(!m_partition_type.is_empty());
      ASSERT(!m_unique_guid.is_empty());
  }
  
  DiskPartitionMetadata DiskPartitionMetadata::offset(u64 blocks_count) const
  {
      return DiskPartitionMetadata({ blocks_count + m_start_block, blocks_count + m_end_block, m_partition_type });
  }
  
  u64 DiskPartitionMetadata::start_block() const
  {
      return m_start_block;
  }
  u64 DiskPartitionMetadata::end_block() const
  {
      return m_end_block;
  }
  Optional<u64> DiskPartitionMetadata::special_attributes() const
  {
      if (m_attributes == 0)
          return {};
      return m_attributes;
  }
  Optional<String> DiskPartitionMetadata::name() const
  {
      if (m_name.is_null() || m_name.is_empty())
          return {};
      return m_name;
  }
  Optional<ByteBuffer> DiskPartitionMetadata::partition_type() const
  {
      if (m_partition_type.is_null() || m_partition_type.is_empty())
          return {};
      return m_partition_type;
  }
  Optional<ByteBuffer> DiskPartitionMetadata::unique_guid() const
  {
      if (m_unique_guid.is_null() || m_unique_guid.is_empty())
          return {};
      return m_unique_guid;
  }
  
  }
  