Return to Unit VirtualDisk
Description
To be documented
Class definitions
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TVirtualDiskVboxImage = class(TVirtualDiskImage)
constructor Create(ADriver:TFileSysDriver; AController:TDiskController; const AName:String; AImageNo:Integer);
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destructor Destroy; override;
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private
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function GetAttributes:LongWord;
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protected
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function GetReady:Boolean; override;
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function GetCylinders:LongWord; override;
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function GetHeads:LongWord; override;
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function GetSectors:LongWord; override;
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function GetSectorSize:Word; override;
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function GetSectorCount:Int64; override;
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function ReadExtent(AExtent:TVirtualDiskExtent; ASector:LongWord; ACount:Word; var ABuffer):Word; override;
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function WriteExtent(AExtent:TVirtualDiskExtent; ASector:LongWord; ACount:Word; const ABuffer):Word; override;
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function LoadExtents:Boolean; override;
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function CheckExtent(ADelta,AParent:TVirtualDiskExtent; const AFilename:String):Boolean; override;
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function LoadExtent(ADelta,AParent:TVirtualDiskExtent; const AFilename:String):TVirtualDiskExtent; override;
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function AddExtent(AParent:TVirtualDiskExtent; const AFilename:String):TVirtualDiskExtent; override;
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function SetExtent(AExtent:TVirtualDiskExtent):Boolean; override;
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function GetExtent(const ASector:Int64; AWrite,ALock:Boolean):TVirtualDiskExtent; override;
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function LoadTables:Boolean; override;
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function LoadTable(AExtent:TVirtualDiskExtent; ATableNo:LongWord):TVirtualDiskTable; override;
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function AddTable(AExtent:TVirtualDiskExtent):TVirtualDiskTable; override;
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function SetTable(ATable:TVirtualDiskTable):Boolean; override;
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function LocateDelta(AExtent:TVirtualDiskExtent):String; override;
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function LocateParent(AExtent:TVirtualDiskExtent):String; override;
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public
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function ImageInit:Boolean; override;
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function Read(ASector:LongWord; ACount:Word; var ABuffer):Boolean; override;
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function Write(ASector:LongWord; ACount:Word; const ABuffer):Boolean; override;
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function Allocated(ASector:LongWord; ACount:Word):Word; override;
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function CreateImage(AMediaType:TMediaType; AFloppyType:TFloppyType; AAttributes:LongWord; ASectorSize:Word; const ASectorCount:Int64; ACylinders,AHeads,ASectors:LongWord; APartitionId:Byte):Integer; override;
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function OpenImage(AMediaType:TMediaType; AFloppyType:TFloppyType; AAttributes:LongWord; ASectorSize:Word; const ASectorCount:Int64; ACylinders,AHeads,ASectors:LongWord; APartitionId:Byte):Integer; override;
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function CloseImage:Boolean; override;
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function ResizeImage(const ASectorCount:Int64):Boolean; override;
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function CreateSnapshot:Boolean; override;
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function DeleteSnapshot:Boolean; override;
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function MergeSnapshot:Boolean; override;
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Function declarations
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constructor TVirtualDiskVboxImage.Create(ADriver:TFileSysDriver; AController:TDiskController; const AName:String; AImageNo:Integer);
Description: To be documented
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destructor TVirtualDiskVboxImage.Destroy;
Description: To be documented
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function TVirtualDiskVboxImage.GetAttributes:LongWord;
Description: To be documented
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function TVirtualDiskVboxImage.GetReady:Boolean;
Description: To be documented
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function TVirtualDiskVboxImage.GetCylinders:LongWord;
Description: To be documented
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function TVirtualDiskVboxImage.GetHeads:LongWord;
Description: To be documented
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function TVirtualDiskVboxImage.GetSectors:LongWord;
Description: To be documented
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function TVirtualDiskVboxImage.GetSectorSize:Word;
Description: To be documented
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function TVirtualDiskVboxImage.GetSectorCount:Int64;
Description: To be documented
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function TVirtualDiskVboxImage.ReadExtent(AExtent:TVirtualDiskExtent; ASector:LongWord; ACount:Word; var ABuffer):Word;
Description: To be documented
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Caller must hold the extent lock
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function TVirtualDiskVboxImage.WriteExtent(AExtent:TVirtualDiskExtent; ASector:LongWord; ACount:Word; const ABuffer):Word;
Description: To be documented
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Caller must hold the extent lock
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function TVirtualDiskVboxImage.LoadExtents:Boolean;
Description: To be documented
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function TVirtualDiskVboxImage.CheckExtent(ADelta,AParent:TVirtualDiskExtent; const AFilename:String):Boolean;
Description: Check that the passed file is a valid VirtualBox extent
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If delta is provided, check that passed file is the parent of the delta.
If parent is provided, check that passed file is the delta of the parent.
Caller must hold the delta and parent locks
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function TVirtualDiskVboxImage.LoadExtent(ADelta,AParent:TVirtualDiskExtent; const AFilename:String):TVirtualDiskExtent;
Description: To be documented
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function TVirtualDiskVboxImage.AddExtent(AParent:TVirtualDiskExtent; const AFilename:String):TVirtualDiskExtent;
Description: To be documented
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Caller must hold the parent lock
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function TVirtualDiskVboxImage.SetExtent(AExtent:TVirtualDiskExtent):Boolean;
Description: To be documented
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Caller must hold the extent lock
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function TVirtualDiskVboxImage.GetExtent(const ASector:Int64; AWrite,ALock:Boolean):TVirtualDiskExtent;
Description: To be documented
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function TVirtualDiskVboxImage.LoadTables:Boolean;
Description: To be documented
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function TVirtualDiskVboxImage.LoadTable(AExtent:TVirtualDiskExtent; ATableNo:LongWord):TVirtualDiskTable;
Description: To be documented
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Caller must hold the extent tables writer lock
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function TVirtualDiskVboxImage.AddTable(AExtent:TVirtualDiskExtent):TVirtualDiskTable;
Description: To be documented
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Caller must hold the extent lock
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function TVirtualDiskVboxImage.SetTable(ATable:TVirtualDiskTable):Boolean;
Description: To be documented
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Caller must hold the table extent lock
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function TVirtualDiskVboxImage.LocateDelta(AExtent:TVirtualDiskExtent):String;
Description: To be documented
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Caller must hold the extent lock
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function TVirtualDiskVboxImage.LocateParent(AExtent:TVirtualDiskExtent):String;
Description: To be documented
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Caller must hold the extent lock
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function TVirtualDiskVboxImage.ImageInit:Boolean;
Description: To be documented
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function TVirtualDiskVboxImage.Read(ASector:LongWord; ACount:Word; var ABuffer):Boolean;
Description: To be documented
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Caller must hold the image lock
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function TVirtualDiskVboxImage.Write(ASector:LongWord; ACount:Word; const ABuffer):Boolean;
Description: To be documented
| Note
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Caller must hold the image lock
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function TVirtualDiskVboxImage.Allocated(ASector:LongWord; ACount:Word):Word;
Description: To be documented
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function TVirtualDiskVboxImage.CreateImage(AMediaType:TMediaType; AFloppyType:TFloppyType; AAttributes:LongWord; ASectorSize:Word; const ASectorCount:Int64; ACylinders,AHeads,ASectors:LongWord; APartitionId:Byte):Integer;
Description: To be documented
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function TVirtualDiskVboxImage.OpenImage(AMediaType:TMediaType; AFloppyType:TFloppyType; AAttributes:LongWord; ASectorSize:Word; const ASectorCount:Int64; ACylinders,AHeads,ASectors:LongWord; APartitionId:Byte):Integer;
Description: To be documented
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function TVirtualDiskVboxImage.CloseImage:Boolean;
Description: To be documented
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function TVirtualDiskVboxImage.ResizeImage(const ASectorCount:Int64):Boolean;
Description: To be documented
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function TVirtualDiskVboxImage.CreateSnapshot:Boolean;
Description: To be documented
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function TVirtualDiskVboxImage.DeleteSnapshot:Boolean;
Description: To be documented
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function TVirtualDiskVboxImage.MergeSnapshot:Boolean;
Description: To be documented
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