/*
 * Copyright 2003-2007, Haiku, Inc. All Rights Reserved.
 * Distributed under the terms of the MIT License.
 *
 * Authors:
 *              Tomas Kucera, kucerat@centrum.cz
 */

/*!
        \file PartitionLocker.h
        \ingroup intel_module
        \brief Structures for easy locking and automatic unlocking partitions.
 */

#ifndef _PARTITION_LOCKER_H
#define _PARTITION_LOCKER_H

#include <disk_device_manager.h>


class PartitionLocker {
public:
        PartitionLocker(partition_id partitionID);
        ~PartitionLocker();

        bool IsLocked() const;
        partition_id PartitionId() const;

protected:
        const disk_device_data* fDevice;

private:
        partition_id                    fPartitionID;
};


/*!
  \brief Structure which locks given partition for reading.

  When this structure is going to be destroyed, it automatically unlocks
  that partition.
*/
class PartitionReadLocker : public PartitionLocker {
public:
        PartitionReadLocker(partition_id partitionID);
        ~PartitionReadLocker();
};


/*!
  \brief Structure which locks given partition for writing.

  When this structure is going to be destroyed, it automatically unlocks
  that partition.
*/
class PartitionWriteLocker : public PartitionLocker {
public:
        PartitionWriteLocker(partition_id partitionID);
        ~PartitionWriteLocker();
};


#endif  // _PARTITION_LOCKER_H