Difference between revisions of "TVirtualDiskImage"
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Revision as of 05:44, 1 June 2018
Return to Unit VirtualDisk
Description
To be documented
Class definitions
TVirtualDiskImage = class(TDiskImage)
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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protected
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FFlags:LongWord;
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FExtents:TFileSysList;
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List of Virtual Disk Extents |
FBase:TVirtualDiskExtent;
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The first extent of the image |
FCurrent:TVirtualDiskExtent;
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The current delta extent if applicable |
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 ReadExtent(AExtent:TVirtualDiskExtent; ASector:LongWord; ACount:Word; var ABuffer):Word; virtual;
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function WriteExtent(AExtent:TVirtualDiskExtent; ASector:LongWord; ACount:Word; const ABuffer):Word; virtual;
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function LoadExtents:Boolean; virtual;
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function CloseExtents:Boolean; virtual;
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function CheckExtent(ADelta,AParent:TVirtualDiskExtent; const AFilename:String):Boolean; virtual;
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function LoadExtent(ADelta,AParent:TVirtualDiskExtent; const AFilename:String):TVirtualDiskExtent; virtual;
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function AddExtent(AParent:TVirtualDiskExtent; const AFilename:String):TVirtualDiskExtent; virtual;
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function RemoveExtent(AExtent:TVirtualDiskExtent):Boolean; virtual;
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function SetExtent(AExtent:TVirtualDiskExtent):Boolean; virtual;
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function GetExtent(const ASector:Int64; AWrite,ALock:Boolean):TVirtualDiskExtent; virtual;
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function FindExtent(const AFilename:String; ALock:Boolean):TVirtualDiskExtent; virtual;
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function LoadTables:Boolean; virtual;
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function LoadTable(AExtent:TVirtualDiskExtent; ATableNo:LongWord):TVirtualDiskTable; virtual;
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function AddTable(AExtent:TVirtualDiskExtent):TVirtualDiskTable; virtual;
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function RemoveTable(ATable:TVirtualDiskTable):Boolean; virtual;
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function SetTable(ATable:TVirtualDiskTable):Boolean; virtual;
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function GetTable(AExtent:TVirtualDiskExtent; const ASector:Int64; AWrite:Boolean):TVirtualDiskTable; virtual;
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function LoadBlocks(ATable:TVirtualDiskTable):Boolean; virtual;
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function LoadBlock(ATable:TVirtualDiskTable; ABlockNo:LongWord):TVirtualDiskBlock; virtual;
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function AddBlock(ATable:TVirtualDiskTable):TVirtualDiskBlock; virtual;
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function RemoveBlock(ABlock:TVirtualDiskBlock):Boolean; virtual;
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function SetBlock(ABlock:TVirtualDiskBlock):Boolean; virtual;
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function GetBlock(ATable:TVirtualDiskTable; const ASector:Int64; AWrite:Boolean):TVirtualDiskBlock; virtual;
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function LocateDelta(AExtent:TVirtualDiskExtent):String; virtual;
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function LocateParent(AExtent:TVirtualDiskExtent):String; virtual;
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function LocateSibling(AExtent:TVirtualDiskExtent):String; virtual;
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public
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property Flags:LongWord read FFlags write FFlags;
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property Extents:TFileSysList read FExtents;
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property Base:TVirtualDiskExtent read FBase;
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property Current:TVirtualDiskExtent read FCurrent;
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function IsSplit:Boolean; virtual;
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Function declarations
constructor TVirtualDiskImage.Create(ADriver:TFileSysDriver; AController:TDiskController; const AName:String;AImageNo:Integer);
Description: To be documented
| Note | None documented |
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destructor TVirtualDiskImage.Destroy;
Description: To be documented
| Note | None documented |
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function TVirtualDiskImage.GetCylinders:LongWord;
Description: To be documented
| Note | None documented |
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function TVirtualDiskImage.GetHeads:LongWord;
Description: To be documented
| Note | None documented |
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function TVirtualDiskImage.GetSectors:LongWord;
Description: To be documented
| Note | None documented |
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function TVirtualDiskImage.ReadExtent(AExtent:TVirtualDiskExtent; ASector:LongWord;ACount:Word; var ABuffer):Word;
Description: To be documented
| Note | Virtual Base Method |
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function TVirtualDiskImage.WriteExtent(AExtent:TVirtualDiskExtent; ASector:LongWord; ACount:Word; const ABuffer):Word;
Description: To be documented
| Note | Virtual Base Method |
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function TVirtualDiskImage.LoadExtents:Boolean;
Description: To be documented
| Note | Virtual Base Method |
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function TVirtualDiskImage.CloseExtents:Boolean;
Description: To be documented
| Note | None documented |
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function TVirtualDiskImage.CheckExtent(ADelta,AParent:TVirtualDiskExtent; const AFilename:String):Boolean;
Description: To be documented
| Note | Virtual Base Method |
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function TVirtualDiskImage.LoadExtent(ADelta,AParent:TVirtualDiskExtent; const AFilename:String):TVirtualDiskExtent;
Description: To be documented
| Note | Virtual Base Method |
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function TVirtualDiskImage.AddExtent(AParent:TVirtualDiskExtent; const AFilename:String):TVirtualDiskExtent;
Description: To be documented
| Note | Virtual Base Method |
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function TVirtualDiskImage.RemoveExtent(AExtent:TVirtualDiskExtent):Boolean;
Description: To be documented
| Note | Virtual Base Method |
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function TVirtualDiskImage.SetExtent(AExtent:TVirtualDiskExtent):Boolean;
Description: To be documented
| Note | Virtual Base Method |
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function TVirtualDiskImage.GetExtent(const ASector:Int64; AWrite,ALock:Boolean):TVirtualDiskExtent;
Description: To be documented
| Note | Virtual Base Method |
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function TVirtualDiskImage.FindExtent(const AFilename:String; ALock:Boolean):TVirtualDiskExtent;
Description: To be documented
| Note | None documented |
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function TVirtualDiskImage.LoadTables:Boolean;
Description: To be documented
| Note | Virtual Base Method |
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function TVirtualDiskImage.LoadTable(AExtent:TVirtualDiskExtent; ATableNo:LongWord):TVirtualDiskTable;
Description: To be documented
| Note | Virtual Base Method |
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function TVirtualDiskImage.AddTable(AExtent:TVirtualDiskExtent):TVirtualDiskTable;
Description: To be documented
| Note | Virtual Base Method |
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function TVirtualDiskImage.RemoveTable(ATable:TVirtualDiskTable):Boolean;
Description: To be documented
| Note | Virtual Base Method |
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function TVirtualDiskImage.SetTable(ATable:TVirtualDiskTable):Boolean;
Description: To be documented
| Note | Virtual Base Method |
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function TVirtualDiskImage.GetTable(AExtent:TVirtualDiskExtent; const ASector:Int64; AWrite:Boolean):TVirtualDiskTable;
Description: To be documented
| Note | Virtual Base Method |
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function TVirtualDiskImage.LoadBlocks(ATable:TVirtualDiskTable):Boolean;
Description: To be documented
| Note | Virtual Base Method |
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function TVirtualDiskImage.LoadBlock(ATable:TVirtualDiskTable; ABlockNo:LongWord):TVirtualDiskBlock;
Description: To be documented
| Note | Virtual Base Method |
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function TVirtualDiskImage.AddBlock(ATable:TVirtualDiskTable):TVirtualDiskBlock;
Description: To be documented
| Note | Virtual Base Method |
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function TVirtualDiskImage.RemoveBlock(ABlock:TVirtualDiskBlock):Boolean;
Description: To be documented
| Note | Virtual Base Method |
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function TVirtualDiskImage.SetBlock(ABlock:TVirtualDiskBlock):Boolean;
Description: To be documented
| Note | Virtual Base Method |
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function TVirtualDiskImage.GetBlock(ATable:TVirtualDiskTable; const ASector:Int64; AWrite:Boolean):TVirtualDiskBlock;
Description: To be documented
| Note | Virtual Base Method |
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function TVirtualDiskImage.LocateDelta(AExtent:TVirtualDiskExtent):String;
Description: To be documented
| Note | Virtual Base Method |
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function TVirtualDiskImage.LocateParent(AExtent:TVirtualDiskExtent):String;
Description: To be documented
| Note | Virtual Base Method |
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function TVirtualDiskImage.LocateSibling(AExtent:TVirtualDiskExtent):String;
Description: To be documented
| Note | Virtual Base Method |
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function TVirtualDiskImage.IsSplit:Boolean;
Description: To be documented
| Note | None documented |
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