TDiskDevice
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Return to Unit Filesystem
Description
To be documented
Class definitions
TDiskDevice = class(TListObject)
constructor Create(ADriver:TFileSysDriver; AController:TDiskController; AImage:TDiskImage; AStorage:PStorageDevice; ADeviceNo:Integer; const AIdentifier:String);
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destructor Destroy; override;
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private
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FLock:TSynchronizerHandle;
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FLocalLock:TMutexHandle;
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protected
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FDriver:TFileSysDriver;
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FController:TDiskController;
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FImage:TDiskImage;
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FStorage:PStorageDevice;
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FDeviceNo:Integer;
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00h, 01h, 80h, 81h etc - See Notes |
FIdentifier:String;
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Controller Specific Identifier |
FInformation:String;
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Description of Device - eg "Standard ATA Disk" |
FVendorId:Word;
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PCI or USB Vendor Id |
FDeviceId:Word;
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PCI or USB Device Id |
FManufacturer:String;
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Device Manufacturer name |
FProduct:String;
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Device Product name |
FSerialNumber:String;
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Device Serial Number |
FHostBus:String;
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PCI, ISA etc |
FBusNumber:Word;
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PCI Bus No |
FDeviceNumber:Word;
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PCI Device No |
FFunctionNumber:Word;
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PCI Function No |
FBaseAddress:Word;
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ISA Base Address |
FInterfaceType:String;
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ATA, ATAPI, SCSI, USB, 1394, FIBRE |
FSlave:Boolean;
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Device is Slave |
FLogicalUnitNo:LongWord;
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LUN No eg SCSI, ATAPI or USB |
FFireWireGUID:Int64;
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FireWire GUID No |
FWorldWideNo:Int64;
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Fibre Channel WWN |
FPhysicalPort:Word;
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Physical IO Port |
FControlPort:Word;
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Drive Control Port |
FIRQ:LongWord;
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IRQ No |
FPIO:Boolean;
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PIO Transfer Enabled |
FDMA:Boolean;
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DMA Transfer Enabled |
FLBA:Boolean;
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Supports LBA (eg Int13 Extensions) |
FVersion:LongWord;
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Version Information (eg Int13 Extensions Version 01h,20h,21h,30h) |
FMediaType:TMediaType;
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Media Type eg Fixed, Removable, Floppy |
FFloppyType:TFloppyType;
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Floppy Type eg 360K, 1.44M, ATAPI |
FReady:Boolean;
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Media is Inserted in Drive |
FLocked:Boolean;
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Media is Locked in Drive |
FLockable:Boolean;
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Media is Lockable |
FEjectable:Boolean;
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Media is Ejectable |
FReadable:Boolean;
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Media is Readable |
FWriteable:Boolean;
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Media is Writeable |
FEraseable:Boolean;
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Media is Eraseable |
FRemovable:Boolean;
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Media is Removable |
FChangeLine:Boolean;
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Supports ChangeLine detection |
FPhysicalCylinders:LongWord;
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Physical Cylinders on Drive |
FPhysicalHeads:LongWord;
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Physical Heads on Drive |
FPhysicalSectors:LongWord;
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Physical Sectors per Track |
FLogicalCylinders:LongWord;
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Logical Cylinders on Drive |
FLogicalHeads:LongWord;
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Logical Heads on Drive |
FLogicalSectors:LongWord;
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Logical Sectors per Track |
FSectorSize:Word;
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Bytes Per Sector |
FSectorCount:Int64;
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Total Sectors |
FSectorShiftCount:Word;
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Sectors to Bytes Shift Count |
FPageCount:Word;
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Cache Page Count for this Device |
FPageShift:Word;
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Cache Page Shift for this Device |
FPageMask:LongWord;
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Cache Page Mask for this Device |
function AcquireLock:Boolean;
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function ReleaseLock:Boolean;
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function GetName:String;
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function GetIdentifier:String;
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function GetInformation:String;
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function GetManufacturer:String;
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function GetProduct:String;
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function GetSerialNumber:String;
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function GetHostBus:String;
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function GetInterfaceType:String;
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function GetFreeSectors:Int64;
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Unused Sectors on Device |
function GetAvailableSectors:Int64;
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Largest block of Unused Sectors |
function GetAvailableBlock(var AStart,ACount:Int64):Boolean;
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function GetDiskSignature:LongWord; virtual;
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procedure SetDiskSignature(ADiskSignature:LongWord); virtual;
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function GetBootRecord(ARecord:Pointer,ASector:LongWord):Boolean; virtual;
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function SetBootRecord(ARecord:Pointer,ASector:LongWord):Boolean; virtual;
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public
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property Name:String read GetName;
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property Controller:TDiskController read FController;
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property Image:TDiskImage read FImage;
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property Storage:PStorageDevice read FStorage;
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property DeviceNo:Integer read FDeviceNo;
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property Identifier:String read GetIdentifier;
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property Information:String read GetInformation;
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property VendorId:Word read FVendorId;
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property DeviceId:Word read FDeviceId;
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property Manufacturer:String read GetManufacturer;
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property Product:String read GetProduct;
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property SerialNumber:String read GetSerialNumber;
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property HostBus:String read GetHostBus;
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property BusNumber:Word read FBusNumber;
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property DeviceNumber:Word read FDeviceNumber;
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property FunctionNumber:Word read FFunctionNumber;
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property BaseAddress:Word read FBaseAddress;
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property InterfaceType:String read GetInterfaceType;
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property Slave:Boolean read FSlave;
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property LogicalUnitNo:LongWord read FLogicalUnitNo;
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property FireWireGUID:Int64 read FFireWireGUID;
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property WorldWideNo:Int64 read FWorldWideNo;
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property PhysicalPort:Word read FPhysicalPort;
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property ControlPort:Word read FControlPort;
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property IRQ:LongWord read FIRQ;
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property PIO:Boolean read FPIO;
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property DMA:Boolean read FDMA;
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property LBA:Boolean read FLBA;
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property Version:LongWord read FVersion;
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property MediaType:TMediaType read FMediaType;
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property FloppyType:TFloppyType read FFloppyType;
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property Ready:Boolean read FReady;
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property Locked:Boolean read FLocked;
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property Lockable:Boolean read FLockable;
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property Ejectable:Boolean read FEjectable;
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property Readable:Boolean read FReadable;
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property Writeable:Boolean read FWriteable;
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property Eraseable:Boolean read FEraseable;
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property Removable:Boolean read FRemovable;
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property ChangeLine:Boolean read FChangeLine;
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property PhysicalCylinders:LongWord read FPhysicalCylinders;
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property PhysicalHeads:LongWord read FPhysicalHeads;
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property PhysicalSectors:LongWord read FPhysicalSectors;
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property LogicalCylinders:LongWord read FLogicalCylinders;
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property LogicalHeads:LongWord read FLogicalHeads;
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property LogicalSectors:LongWord read FLogicalSectors;
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property SectorSize:Word read FSectorSize;
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property SectorCount:Int64 read FSectorCount;
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property SectorShiftCount:Word read FSectorShiftCount;
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property PageCount:Word read FPageCount write FPageCount;
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property PageShift:Word read FPageShift write FPageShift;
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property PageMask:LongWord read FPageMask write FPageMask;
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property FreeSectors:Int64 read GetFreeSectors;
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property AvailableSectors:Int64 read GetAvailableSectors;
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property DiskSignature:LongWord read GetDiskSignature write SetDiskSignature;
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function ReaderLock:Boolean;
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function ReaderUnlock:Boolean;
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function WriterLock:Boolean;
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function WriterUnlock:Boolean;
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function DeviceInit:Boolean; virtual;
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function LocatePartitions:Boolean; virtual;
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function LocateVolumes:Boolean; virtual;
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function CreateVolume:TDiskVolume; virtual;
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function DeleteVolume(AVolume:TDiskVolume):Boolean; virtual;
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function CreatePartition(AParent:TDiskPartition; APartitionId:Byte; ACount:LongWord; AActive:Boolean):Boolean; virtual;
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function DeletePartition(APartition:TDiskPartition):Boolean; virtual;
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function ModifyPartition(APartition:TDiskPartition; APartitionId:Byte):Boolean; virtual;
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function ActivatePartition(APartition:TDiskPartition; AActive:Boolean):Boolean; virtual;
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function ShrinkPartition(APartition:TDiskPartition; const AStart,ASize:Int64):Boolean; virtual;
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function ExpandPartition(APartition:TDiskPartition; const AStart,ASize:Int64):Boolean; virtual;
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function Reset:Boolean;
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function LockMedia:Boolean;
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function UnlockMedia:Boolean;
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function EjectMedia:Boolean;
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function MediaReady:Boolean;
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function MediaChanged:Boolean;
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function MediaLocked:Boolean;
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function InsertDevice:Boolean; virtual;
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function EjectDevice:Boolean; virtual;
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function OpenDevice(AMode:Integer):Integer; virtual;
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procedure CloseDevice(AHandle:Integer); virtual;
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function ReadDevice(AHandle:Integer; var ABuffer; ACount:Integer):Integer; virtual;
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function WriteDevice(AHandle:Integer; const ABuffer; ACount:Integer):Integer; virtual;
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function EraseDevice(AHandle:Integer; ACount:Integer):Integer; virtual;
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function SeekDevice(AHandle:Integer; const AOffset:Int64; AOrigin:Integer):Int64; virtual;
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Function declarations
constructor TDiskDevice.Create(ADriver:TFileSysDriver; AController:TDiskController; AImage:TDiskImage; AStorage:PStorageDevice; ADeviceNo:Integer; const AIdentifier:String);
Description: To be documented
| Note | None documented |
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destructor TDiskDevice.Destroy;
Description: To be documented
| Note | None documented |
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function TDiskDevice.AcquireLock:Boolean;
Description: To be documented
| Note | None documented |
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function TDiskDevice.ReleaseLock:Boolean;
Description: To be documented
| Note | None documented |
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function TDiskDevice.GetName:String;
Description: To be documented
| Note | None documented |
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function TDiskDevice.GetIdentifier:String;
Description: To be documented
| Note | None documented |
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function TDiskDevice.GetInformation:String;
Description: To be documented
| Note | None documented |
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function TDiskDevice.GetManufacturer:String;
Description: To be documented
| Note | None documented |
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function TDiskDevice.GetProduct:String;
Description: To be documented
| Note | None documented |
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function TDiskDevice.GetSerialNumber:String;
Description: To be documented
| Note | None documented |
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function TDiskDevice.GetHostBus:String;
Description: To be documented
| Note | None documented |
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function TDiskDevice.GetInterfaceType:String;
Description: To be documented
| Note | None documented |
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function TDiskDevice.GetFreeSectors:Int64;
Description: Get the total Count of Unused Sectors on the Device
| Note | None documented |
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function TDiskDevice.GetAvailableSectors:Int64;
Description: Get the largest Count of Unused Sectors on the Device
| Note | None documented |
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function TDiskDevice.GetAvailableBlock(var AStart,ACount:Int64):Boolean;
Description: Get the Start and Count of largest Unused Sectors on the Device
| Note | None documented |
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function TDiskDevice.GetDiskSignature:LongWord;
Description: To be documented
| Note | None documented |
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procedure TDiskDevice.SetDiskSignature(ADiskSignature:LongWord);
Description: To be documented
| Note | None documented |
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function TDiskDevice.ReaderLock:Boolean;
Description: To be documented
| Note | None documented |
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function TDiskDevice.ReaderUnlock:Boolean;
Description: To be documented
| Note | None documented |
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function TDiskDevice.WriterLock:Boolean;
Description: To be documented
| Note | None documented |
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function TDiskDevice.WriterUnlock:Boolean;
Description: To be documented
| Note | None documented |
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function TDiskDevice.DeviceInit:Boolean;
Description: To be documented
| Note | None documented |
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function TDiskDevice.LocatePartitions:Boolean;
Description: To be documented
| Note | None documented |
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function TDiskDevice.LocateVolumes:Boolean;
Description: To be documented
| Note | None documented |
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function TDiskDevice.CreateVolume:TDiskVolume;
Description: To be documented
| Note | None documented |
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function TDiskDevice.DeleteVolume(AVolume:TDiskVolume):Boolean;
Description: To be documented
| Note | Caller must hold the volume writer lock |
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function TDiskDevice.CreatePartition(AParent:TDiskPartition; APartitionId:Byte; ACount:LongWord; AActive:Boolean):Boolean;
Description: To be documented
| Note | Caller must hold the parent writer lock |
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function TDiskDevice.DeletePartition(APartition:TDiskPartition):Boolean;
Description: To be documented
| Note | Caller must hold the partition writer lock |
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function TDiskDevice.ModifyPartition(APartition:TDiskPartition; APartitionId:Byte):Boolean;
Description: To be documented
| Note | Caller must hold the partition writer lock |
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function TDiskDevice.ActivatePartition(APartition:TDiskPartition; AActive:Boolean):Boolean;
Description: To be documented
| Note | Caller must hold the partition writer lock |
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function TDiskDevice.ShrinkPartition(APartition:TDiskPartition; const AStart,ASize:Int64):Boolean;
Description: To be documented
| Note | Caller must hold the partition writer lock |
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function TDiskDevice.ExpandPartition(APartition:TDiskPartition; const AStart,ASize:Int64):Boolean;
Description: To be documented
| Note | Caller must hold the partition writer lock |
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function TDiskDevice.Reset:Boolean;
Description: To be documented
| Note | None documented |
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function TDiskDevice.LockMedia:Boolean;
Description: To be documented
| Note | None documented |
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function TDiskDevice.UnlockMedia:Boolean;
Description: To be documented
| Note | None documented |
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function TDiskDevice.EjectMedia:Boolean;
Description: To be documented
| Note | None documented |
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function TDiskDevice.MediaReady:Boolean;
Description: To be documented
| Note | None documented |
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function TDiskDevice.MediaChanged:Boolean;
Description: To be documented
| Note | None documented |
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function TDiskDevice.MediaLocked:Boolean;
Description: To be documented
| Note | None documented |
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function TDiskDevice.InsertDevice:Boolean;
Description: To be documented
| Note | None documented |
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function TDiskDevice.EjectDevice:Boolean;
Description: To be documented
| Note | None documented |
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function TDiskDevice.OpenDevice(AMode:Integer):Integer;
Description: To be documented
| Note | None documented |
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procedure TDiskDevice.CloseDevice(AHandle:Integer);
Description: To be documented
| Note | None documented |
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function TDiskDevice.ReadDevice(AHandle:Integer; var ABuffer; ACount:Integer):Integer;
Description: To be documented
| Note | Raw Reads must be in Sector sized multiples |
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function TDiskDevice.WriteDevice(AHandle:Integer; const ABuffer; ACount:Integer):Integer;
Description: To be documented
| Note | Raw Writes must be in Sector sized multiples |
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function TDiskDevice.EraseDevice(AHandle:Integer; ACount:Integer):Integer;
Description: To be documented
| Note | Raw Erases must be in Sector sized multiples |
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function TDiskDevice.SeekDevice(AHandle:Integer; const AOffset:Int64; AOrigin:Integer):Int64;
Description: To be documented
| Note | Raw Seeks must be in Sector sized multiples
Raw Seeks cannot extend the size of the Device |
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