TDiskVolume
From Ultibo.org
Return to Unit Filesystem
Description
To be documented
Class definitions
TDiskVolume = class(TListObject)
constructor Create(ADriver:TFileSysDriver; ADevice:TDiskDevice; APartition:TDiskPartition; AVolumeNo:Integer);
|
|
destructor Destroy; override;
|
|
private
| |
FLock:TSynchronizerHandle;
|
|
FLocalLock:TMutexHandle;
|
|
protected
| |
FDriver:TFileSysDriver;
|
|
FDevice:TDiskDevice;
|
|
FPartition:TDiskPartition;
|
|
FVolumeNo:Integer;
|
\Volume1 , \Volume2, etc - See Notes |
FSegmentNo:Integer;
|
Segment0, Segment1 etc - for Multiple Segment volumes (eg Netware) |
FDriveType:TDriveType;
|
|
FFileSystem:TFileSystem;
|
|
FRemovable:Boolean;
|
Volume is Removable - Set by VolumeInit |
FRecognizable:Boolean;
|
Volume allows Recognize Volume |
FRecognized:Boolean;
|
Recognized Volume - Set by Recognizer |
FSectorSize:Word;
|
Sector Size of Device |
FStartSector:Int64;
|
Absolute Start Sector on Device |
FSectorCount:LongWord;
|
Total Sectors in Volume |
FSectorShiftCount:Word;
|
Sectors to Bytes Shift Count |
function AcquireLock:Boolean;
|
|
function ReleaseLock:Boolean;
|
|
function GetName:String;
|
|
function GetParent:String;
|
|
function GetMaxFile:Integer;
|
|
function GetMaxPath:Integer;
|
|
function GetAttributes:LongWord;
|
|
function GetSystemName:String;
|
|
function GetVolumeName:String;
|
|
function GetVolumeGUID:String;
|
|
function GetVolumeSerial:LongWord;
|
|
function GetFileSysType:TFileSysType;
|
|
procedure SetFileSystem(AFileSystem:TFileSystem);
|
|
function GetSectorSize:Word;
|
|
function GetStartSector:Int64;
|
|
function GetSectorCount:LongWord;
|
|
function GetSectorShiftCount:Word;
|
|
function MediaTypeToDriveType(AMediaType:TMediaType):TDriveType;
|
|
function GetBootRecord(ARecord:Pointer,ASector:LongWord):Boolean; virtual;
|
|
function SetBootRecord(ARecord:Pointer,ASector:LongWord):Boolean; virtual;
|
|
public
| |
property Name:String read GetName;
|
|
property Parent:String read GetParent;
|
|
property Device:TDiskDevice read FDevice;
|
|
property Partition:TDiskPartition read FPartition;
|
|
property VolumeNo:Integer read FVolumeNo;
|
|
property SegmentNo:Integer read FSegmentNo;
|
|
property MaxFile:Integer read GetMaxFile;
|
|
property MaxPath:Integer read GetMaxPath;
|
|
property Attributes:LongWord read GetAttributes;
|
|
property SystemName:String read GetSystemName;
|
|
property VolumeName:String read GetVolumeName;
|
|
property VolumeGUID:String read GetVolumeGUID;
|
|
property VolumeSerial:LongWord read GetVolumeSerial;
|
|
property DriveType:TDriveType read FDriveType;
|
|
property FileSysType:TFileSysType read GetFileSysType;
|
|
property FileSystem:TFileSystem read FFileSystem write SetFileSystem;
|
|
property Removable:Boolean read FRemovable;
|
|
property Recognizable:Boolean read FRecognizable;
|
|
property Recognized:Boolean read FRecognized write FRecognized;
|
|
property SectorSize:Word read GetSectorSize;
|
|
property StartSector:Int64 read GetStartSector;
|
|
property SectorCount:LongWord read GetSectorCount;
|
|
property SectorShiftCount:Word read GetSectorShiftCount;
|
|
function ReaderLock:Boolean;
|
|
function ReaderUnlock:Boolean;
|
|
function WriterLock:Boolean;
|
|
function WriterUnlock:Boolean;
|
|
function VolumeInit:Boolean; virtual;
|
|
function CreateDrive(ADriveNo:Integer):TDiskDrive; virtual;
|
|
function DeleteDrive(ADrive:TDiskDrive):Boolean; virtual;
|
|
function MountVolume(ADriveNo:Integer):Boolean; virtual;
|
|
function DismountVolume:Boolean; virtual;
|
|
function FormatVolume(AFloppyType:TFloppyType; AFileSysType:TFileSysType):Boolean; virtual;
|
|
function DefragmentVolume:Boolean; virtual;
|
|
function ConvertVolume(AFileSysType:TFileSysType):Boolean; virtual;
|
|
function RepairVolume:Boolean; virtual;
|
|
function CopyVolume(ADest:TDiskVolume):Boolean; virtual;
|
|
function ShrinkVolume(const AStart,ASize:Int64):Boolean; virtual;
|
|
function ExpandVolume(const AStart,ASize:Int64):Boolean; virtual;
|
|
function OpenVolume(AMode:Integer):Integer; virtual;
|
|
procedure CloseVolume(AHandle:Integer); virtual;
|
|
function ReadVolume(AHandle:Integer; var ABuffer; ACount:Integer):Integer; virtual;
|
|
function WriteVolume(AHandle:Integer; const ABuffer; ACount:Integer):Integer; virtual;
|
|
function SeekVolume(AHandle:Integer; const AOffset:Int64; AOrigin:Integer):Int64; virtual;
|
|
Function declarations
constructor TDiskVolume.Create(ADriver:TFileSysDriver; ADevice:TDiskDevice; APartition:TDiskPartition; AVolumeNo:Integer);
Description: To be documented
| Note | None documented |
|---|
destructor TDiskVolume.Destroy;
Description: To be documented
| Note | None documented |
|---|
function TDiskVolume.AcquireLock:Boolean;
Description: To be documented
| Note | None documented |
|---|
function TDiskVolume.ReleaseLock:Boolean;
Description: To be documented
| Note | None documented |
|---|
function TDiskVolume.GetName:String;
Description: To be documented
| Note | None documented |
|---|
function TDiskVolume.GetParent:String;
Description: To be documented
| Note | None documented |
|---|
function TDiskVolume.GetMaxFile:Integer;
Description: Get MaxFile from FileSystem if Mounted
| Note | None documented |
|---|
function TDiskVolume.GetMaxPath:Integer;
Description: Get MaxPath from FileSystem if Mounted
| Note | None documented |
|---|
function TDiskVolume.GetAttributes:LongWord;
Description: Get Attributes from FileSystem if Mounted
| Note | None documented |
|---|
function TDiskVolume.GetSystemName:String;
Description: Get SystemName from FileSystem if Mounted
| Note | None documented |
|---|
function TDiskVolume.GetVolumeName:String;
Description: Get VolumeName from FileSystem if Mounted
| Note | None documented |
|---|
function TDiskVolume.GetVolumeGUID:String;
Description: Get VolumeGUID from FileSystem if Mounted
| Note | None documented |
|---|
function TDiskVolume.GetVolumeSerial:LongWord;
Description: Get VolumeSerial from FileSystem if Mounted
| Note | None documented |
|---|
function TDiskVolume.GetFileSysType:TFileSysType;
Description: Get FileSysType from FileSystem if Mounted
| Note | None documented |
|---|
procedure TDiskVolume.SetFileSystem(AFileSystem:TFileSystem);
Description: Set the FileSystem and Reinitialize the Volume
| Note | None documented |
|---|
function TDiskVolume.GetSectorSize:Word;
Description: Get SectorSize from FileSystem (Mounted) or Volume (Not Mounted)
| Note | None documented |
|---|
function TDiskVolume.GetStartSector:Int64;
Description: Get StartSector from FileSystem (Mounted) or Volume (Not Mounted)
| Note | None documented |
|---|
function TDiskVolume.GetSectorCount:LongWord;
Description: Get SectorCount from FileSystem (Mounted) or Volume (Not Mounted)
| Note | None documented |
|---|
function TDiskVolume.GetSectorShiftCount:Word;
Description: To be documented
| Note | None documented |
|---|
function TDiskVolume.MediaTypeToDriveType(AMediaType:TMediaType):TDriveType;
Description: To be documented
| Note | None documented |
|---|
function TDiskVolume.ReaderLock:Boolean;
Description: To be documented
| Note | None documented |
|---|
function TDiskVolume.ReaderUnlock:Boolean;
Description: To be documented
| Note | None documented |
|---|
function TDiskVolume.WriterLock:Boolean;
Description: To be documented
| Note | None documented |
|---|
function TDiskVolume.WriterUnlock:Boolean;
Description: To be documented
| Note | None documented |
|---|
function TDiskVolume.VolumeInit:Boolean;
Description: To be documented
| Note | None documented |
|---|
function TDiskVolume.CreateDrive(ADriveNo:Integer):TDiskDrive;
Description: To be documented
| Note | None documented |
|---|
function TDiskVolume.DeleteDrive(ADrive:TDiskDrive):Boolean;
Description: To be documented
| Note | Caller must hold the drive writer lock |
|---|
function TDiskVolume.MountVolume(ADriveNo:Integer):Boolean;
Description: To be documented
| Note | None documented |
|---|
function TDiskVolume.DismountVolume:Boolean;
Description: To be documented
| Note | None documented |
|---|
function TDiskVolume.FormatVolume(AFloppyType:TFloppyType; AFileSysType:TFileSysType):Boolean;
Description: To be documented
| Note | None documented |
|---|
function TDiskVolume.DefragmentVolume:Boolean;
Description: To be documented
| Note | None documented |
|---|
function TDiskVolume.ConvertVolume(AFileSysType:TFileSysType):Boolean;
Description: To be documented
| Note | None documented |
|---|
function TDiskVolume.RepairVolume:Boolean;
Description: To be documented
| Note | None documented |
|---|
function TDiskVolume.CopyVolume(ADest:TDiskVolume):Boolean;
Description: To be documented
| Note | Caller must hold the dest writer lock |
|---|
function TDiskVolume.ShrinkVolume(const AStart,ASize:Int64):Boolean;
Description: To be documented
| Note | None documented |
|---|
function TDiskVolume.ExpandVolume(const AStart,ASize:Int64):Boolean;
Description: To be documented
| Note | None documented |
|---|
function TDiskVolume.OpenVolume(AMode:Integer):Integer;
Description: To be documented
| Note | None documented |
|---|
procedure TDiskVolume.CloseVolume(AHandle:Integer);
Description: To be documented
| Note | None documented |
|---|
function TDiskVolume.ReadVolume(AHandle:Integer; var ABuffer; ACount:Integer):Integer;
Description: To be documented
| Note | Raw Reads must be in Sector sized multiples |
|---|
function TDiskVolume.WriteVolume(AHandle:Integer; const ABuffer; ACount:Integer):Integer;
Description: To be documented
| Note | Raw Writes must be in Sector sized multiples |
|---|
function TDiskVolume.SeekVolume(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 Volume |
|---|
Return to Unit Reference
