haiku-beta6/headers/private/storage/DiskDevice.h

/*
 * Copyright 2003-2007, Ingo Weinhold, [email protected].
 * Copyright 2003, Tyler Akidau, [email protected].
 * Distributed under the terms of the MIT License.
 */
#ifndef _DISK_DEVICE_H
#define _DISK_DEVICE_H

#include <Partition.h>


struct user_disk_device_data;

class BDiskDevice : public BPartition {
public:
								BDiskDevice();
	virtual						~BDiskDevice();

			bool				HasMedia() const;
			bool				IsRemovableMedia() const;
			bool				IsReadOnlyMedia() const;
			bool				IsWriteOnceMedia() const;

			status_t			Eject(bool update = false);

			status_t			SetTo(partition_id id);
			status_t			Update(bool* updated = NULL);
			void				Unset();
			status_t			InitCheck() const;

	virtual	status_t			GetPath(BPath* path) const;

			bool				IsModified() const;
			status_t			PrepareModifications();
			status_t			CommitModifications(bool synchronously = true,
									BMessenger progressMessenger = BMessenger(),
									bool receiveCompleteProgressUpdates = true);
			status_t			CancelModifications();

private:
			friend class BDiskDeviceList;
			friend class BDiskDeviceRoster;

								BDiskDevice(const BDiskDevice&);
			BDiskDevice&		operator=(const BDiskDevice&);

	static	status_t			_GetData(partition_id id, bool deviceOnly,
									size_t neededSize,
									user_disk_device_data** data);

			status_t			_SetTo(partition_id id, bool deviceOnly,
									size_t neededSize);
			status_t			_SetTo(user_disk_device_data* data);
			status_t			_Update(bool* updated);
			status_t			_Update(user_disk_device_data* data,
									bool* updated);

	static	void				_ClearUserData(user_partition_data* data);

	virtual	bool				_AcceptVisitor(BDiskDeviceVisitor* visitor,
									int32 level);

			user_disk_device_data* fDeviceData;
};

#endif	// _DISK_DEVICE_H