headers/private/storage/DiskDevice.h

   1 /*
   2  * Copyright 2003-2007, Ingo Weinhold, ingo_weinhold@gmx.de.
   3  * Copyright 2003, Tyler Akidau, haiku@akidau.net.
   4  * Distributed under the terms of the MIT License.
   5  */
   6 #ifndef _DISK_DEVICE_H
   7 #define _DISK_DEVICE_H
   8
   9 #include <Partition.h>
  10
  11
  12 struct user_disk_device_data;
  13
  14 class BDiskDevice : public BPartition {
  15 public:
  16                                                                 BDiskDevice();
  17         virtual                                         ~BDiskDevice();
  18
  19                         bool                            HasMedia() const;
  20                         bool                            IsRemovableMedia() const;
  21                         bool                            IsReadOnlyMedia() const;
  22                         bool                            IsWriteOnceMedia() const;
  23
  24                         status_t                        Eject(bool update = false);
  25
  26                         status_t                        SetTo(partition_id id);
  27                         status_t                        Update(bool* updated = NULL);
  28                         void                            Unset();
  29                         status_t                        InitCheck() const;
  30
  31         virtual status_t                        GetPath(BPath* path) const;
  32
  33                         bool                            IsModified() const;
  34                         status_t                        PrepareModifications();
  35                         status_t                        CommitModifications(bool synchronously = true,
  36                                                                         BMessenger progressMessenger = BMessenger(),
  37                                                                         bool receiveCompleteProgressUpdates = true);
  38                         status_t                        CancelModifications();
  39
  40                         bool                            IsFile() const;
  41                         status_t                        GetFilePath(BPath* path) const;
  42
  43 private:
  44                         friend class BDiskDeviceList;
  45                         friend class BDiskDeviceRoster;
  46
  47                                                                 BDiskDevice(const BDiskDevice&);
  48                         BDiskDevice&            operator=(const BDiskDevice&);
  49
  50         static  status_t                        _GetData(partition_id id, bool deviceOnly,
  51                                                                         size_t neededSize,
  52                                                                         user_disk_device_data** data);
  53
  54                         status_t                        _SetTo(partition_id id, bool deviceOnly,
  55                                                                         size_t neededSize);
  56                         status_t                        _SetTo(user_disk_device_data* data);
  57                         status_t                        _Update(bool* updated);
  58                         status_t                        _Update(user_disk_device_data* data,
  59                                                                         bool* updated);
  60
  61         static  void                            _ClearUserData(user_partition_data* data);
  62
  63         virtual bool                            _AcceptVisitor(BDiskDeviceVisitor* visitor,
  64                                                                         int32 level);
  65
  66                         user_disk_device_data* fDeviceData;
  67 };
  68
  69 #endif  // _DISK_DEVICE_H