Difference between revisions of "TDiskPartition"

Latest revision as of 04:55, 29 January 2025

`constructor Create(ADriver:TFileSysDriver; ADevice:TDiskDevice; APartition:TDiskPartition; APartitionNo:Integer);`
`destructor Destroy; override;`
private
`FLock:TSynchronizerHandle;`
`FLocalLock:TMutexHandle;`
protected
`FDriver:TFileSysDriver;`
`FDevice:TDiskDevice;`
`FPartition:TDiskPartition;`

`FPartitionNo:Integer;`	\Partition1, \Partition2 etc - See Notes

`FEntryNo:Integer;`	0,1,2,3
`FPartitionId:Byte;`	Partition Type from Table

`FBeginHead:Word;`	Logical Starting Head (not Physical)
`FBeginSector:Word;`	Logical Starting Sector (not Physical)
`FBeginCylinder:Word;`	Logical Starting Cylinder (not Physical)
`FEndHead:Word;`	Logical Ending Head (not Physical)
`FEndSector:Word;`	Logical Ending Sector (not Physical)
`FEndCylinder:Word;`	Logical Ending Cylinder (not Physical)
`FSectorOffset:LongWord;`	Offset in Sectors from Location of Table to StartSector

`FActive:Boolean;`	Active Partition Indicator ($80)
`FExtended:Boolean;`	Extended Partition Type (no Volume) - Set by Recognizer
`FRecognizable:Boolean;`	Partition allows Recognize Partition
`FRecognized:Boolean;`	Recognized Partition Id - Set by Recognizer

`FNonVolume:Boolean;`	Non Volume Partition (eg Linux Swap) - Set by Recognizer
`FMultiVolume:Boolean;`	Multiple Volume Partition (eg Netware) - Set by Recognizer

`FStartSector:Int64;`	Absolute Start Sector on Device
`FSectorCount:LongWord;`	Total Sectors in Partition

`function AcquireLock:Boolean;`
`function ReleaseLock:Boolean;`

`function GetName:String;`
`function GetPath:String;`
`function GetParent:String;`
`function GetLogical:Boolean;`
`function GetPrimary:Boolean;`
`procedure SetExtended(AExtended:Boolean);`

`function GetFreeSectors:LongWord;`	Unused Sectors in Partition
`function GetAvailableSectors:LongWord;`	Largest block of Unused Sectors

`function GetAvailableBlock(var AStart,ACount:LongWord):Boolean;`

`function GetRoot:TDiskPartition;`
`function GetParentStart:LongWord;`

`function GetPartitionRecord(ARecord:Pointer,ASector:LongWord):Boolean; virtual;`
`function SetPartitionRecord(ARecord:Pointer,ASector:LongWord):Boolean; virtual;`
public
`property Name:String read GetName;`
`property Path:String read GetPath;`
`property Parent:String read GetParent;`
`property Device:TDiskDevice read FDevice;`
`property Partition:TDiskPartition read FPartition;`
`property PartitionNo:Integer read FPartitionNo;`

`property EntryNo:Integer read FEntryNo write FEntryNo;`
`property PartitionId:Byte read FPartitionId;`

`property BeginHead:Word read FBeginHead;`
`property BeginSector:Word read FBeginSector;`
`property BeginCylinder:Word read FBeginCylinder;`
`property EndHead:Word read FEndHead;`
`property EndSector:Word read FEndSector;`
`property EndCylinder:Word read FEndCylinder;`
`property SectorOffset:LongWord read FSectorOffset;`

`property Active:Boolean read FActive;`
`property Logical:Boolean read GetLogical;`
`property Primary:Boolean read GetPrimary;`
`property Extended:Boolean read FExtended write SetExtended;`
`property Recognizable:Boolean read FRecognizable;`
`property Recognized:Boolean read FRecognized write FRecognized;`

`property NonVolume:Boolean read FNonVolume write FNonVolume;`
`property MultiVolume:Boolean read FMultiVolume write FMultiVolume;`

`property StartSector:Int64 read FStartSector;`
`property SectorCount:LongWord read FSectorCount;`

`property FreeSectors:LongWord read GetFreeSectors;`
`property AvailableSectors:LongWord read GetAvailableSectors;`

`property Root:TDiskPartition read GetRoot;`
`property ParentStart:LongWord read GetParentStart;`

`function ReaderLock:Boolean;`
`function ReaderUnlock:Boolean;`
`function ReaderConvert:Boolean;`
`function WriterLock:Boolean;`
`function WriterUnlock:Boolean;`
`function WriterConvert:Boolean;`

`function PartitionInit:Boolean; virtual;`

`function LocatePartitions:Boolean; virtual;`
`function LocateVolumes:Boolean; virtual;`

`function CreateVolume:TDiskVolume; virtual;`
`function DeleteVolume(AVolume:TDiskVolume):Boolean; virtual;`

`function OpenPartition(AMode:Integer):THandle; virtual;`
`procedure ClosePartition(AHandle:THandle); virtual;`
`function ReadPartition(AHandle:THandle; var ABuffer; ACount:Integer):Integer; virtual;`
`function WritePartition(AHandle:THandle; const ABuffer; ACount:Integer):Integer; virtual;`
`function SeekPartition(AHandle:THandle; const AOffset:Int64; AOrigin:Integer):Int64; virtual;`

Function declarations

[Expand]

constructor TDiskPartition.Create(ADriver:TFileSysDriver; ADevice:TDiskDevice; APartition:TDiskPartition; APartitionNo:Integer);

Description: To be documented

[Expand]

destructor TDiskPartition.Destroy;

Description: To be documented

[Expand]

function TDiskPartition.AcquireLock:Boolean;

Description: To be documented

[Expand]

function TDiskPartition.ReleaseLock:Boolean;

Description: To be documented

[Expand]

function TDiskPartition.GetName:String;

Description: To be documented

[Expand]

function TDiskPartition.GetPath:String;

Description: To be documented

[Expand]

function TDiskPartition.GetParent:String;

Description: To be documented

[Expand]

function TDiskPartition.GetLogical:Boolean;

Description: Check for a non extended partition with a parent

[Expand]

function TDiskPartition.GetPrimary:Boolean;

Description: Check for a non extended partition with no parent

[Expand]

procedure TDiskPartition.SetExtended(AExtended:Boolean);

Description: Mark partition as extended, update no and recalculate start

[Expand]

function TDiskPartition.GetFreeSectors:LongWord;

Description: Get the total Count of Unused Sectors in the Partition

[Expand]

function TDiskPartition.GetAvailableSectors:LongWord;

Description: Get the largest Count of Unused Sectors in the Partition

[Expand]

function TDiskPartition.GetAvailableBlock(var AStart,ACount:LongWord):Boolean;

Description: Get the Start and Count of largest Unused Sectors in the Partition

[Expand]

function TDiskPartition.GetRoot:TDiskPartition;

Description: Returns the first level extended for a second level plus partition

[Expand]

function TDiskPartition.GetParentStart:LongWord;

Description: To be documented

[Expand]

function TDiskPartition.ReaderLock:Boolean;

Description: To be documented

[Expand]

function TDiskPartition.ReaderUnlock:Boolean;

Description: To be documented

[Expand]

function TDiskPartition.ReaderConvert:Boolean;

Description: Convert a Reader lock to a Writer lock

[Expand]

function TDiskPartition.WriterLock:Boolean;

Description: To be documented

[Expand]

function TDiskPartition.WriterUnlock:Boolean;

Description: To be documented

[Expand]

function TDiskPartition.WriterConvert:Boolean;

Description: Convert a Writer lock to a Reader lock

[Expand]

function TDiskPartition.PartitionInit:Boolean;

Description: To be documented

[Expand]

function TDiskPartition.LocatePartitions:Boolean;

Description: To be documented

[Expand]

function TDiskPartition.LocateVolumes:Boolean;

Description: To be documented

[Expand]

function TDiskPartition.CreateVolume:TDiskVolume;

Description: To be documented

[Expand]

function TDiskPartition.DeleteVolume(AVolume:TDiskVolume):Boolean;

Description: To be documented

[Expand]

function TDiskPartition.OpenPartition(AMode:Integer):THandle;

Description: To be documented

[Expand]

procedure TDiskPartition.ClosePartition(AHandle:THandle);

Description: To be documented

[Expand]

function TDiskPartition.ReadPartition(AHandle:THandle; var ABuffer; ACount:Integer):Integer;

Description: To be documented

[Expand]

function TDiskPartition.WritePartition(AHandle:THandle; const ABuffer; ACount:Integer):Integer;

Description: To be documented

[Expand]

function TDiskPartition.SeekPartition(AHandle:THandle; const AOffset:Int64; AOrigin:Integer):Int64;

Description: To be documented

Return to Unit Reference

@@ Line 313: / Line 313: @@
 |colspan="2"|&nbsp;
 |-
-| <code>function OpenPartition(AMode:Integer):Integer; virtual;</code>
+| <code>function OpenPartition(AMode:Integer):THandle; virtual;</code>
 | &nbsp;
 |-
-| <code>procedure ClosePartition(AHandle:Integer); virtual;</code>
+| <code>procedure ClosePartition(AHandle:THandle); virtual;</code>
 | &nbsp;
 |-
-| <code>function ReadPartition(AHandle:Integer; var ABuffer; ACount:Integer):Integer; virtual;</code>
+| <code>function ReadPartition(AHandle:THandle; var ABuffer; ACount:Integer):Integer; virtual;</code>
 | &nbsp;
 |-
-| <code>function WritePartition(AHandle:Integer; const ABuffer; ACount:Integer):Integer; virtual;</code>
+| <code>function WritePartition(AHandle:THandle; const ABuffer; ACount:Integer):Integer; virtual;</code>
 | &nbsp;
 |-
-| <code>function SeekPartition(AHandle:Integer; const AOffset:Int64; AOrigin:Integer):Int64; virtual;</code>
+| <code>function SeekPartition(AHandle:THandle; const AOffset:Int64; AOrigin:Integer):Int64; virtual;</code>
 | &nbsp;
 |-
@@ Line 650: / Line 650: @@
 <br />
 <div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
-<pre style="border: 0; padding-bottom:0px;">function TDiskPartition.OpenPartition(AMode:Integer):Integer;</pre>
+<pre style="border: 0; padding-bottom:0px;">function TDiskPartition.OpenPartition(AMode:Integer):THandle;</pre>
 <div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
 <div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
@@ Line 662: / Line 662: @@
 <br />
 <div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
-<pre style="border: 0; padding-bottom:0px;">procedure TDiskPartition.ClosePartition(AHandle:Integer);</pre>
+<pre style="border: 0; padding-bottom:0px;">procedure TDiskPartition.ClosePartition(AHandle:THandle);</pre>
 <div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
 <div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
@@ Line 674: / Line 674: @@
 <br />
 <div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
-<pre style="border: 0; padding-bottom:0px;">function TDiskPartition.ReadPartition(AHandle:Integer; var ABuffer; ACount:Integer):Integer;</pre>
+<pre style="border: 0; padding-bottom:0px;">function TDiskPartition.ReadPartition(AHandle:THandle; var ABuffer; ACount:Integer):Integer;</pre>
 <div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
 <div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
@@ Line 686: / Line 686: @@
 <br />
 <div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
-<pre style="border: 0; padding-bottom:0px;">function TDiskPartition.WritePartition(AHandle:Integer; const ABuffer; ACount:Integer):Integer;</pre>
+<pre style="border: 0; padding-bottom:0px;">function TDiskPartition.WritePartition(AHandle:THandle; const ABuffer; ACount:Integer):Integer;</pre>
 <div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
 <div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
@@ Line 698: / Line 698: @@
 <br />
 <div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
-<pre style="border: 0; padding-bottom:0px;">function TDiskPartition.SeekPartition(AHandle:Integer; const AOffset:Int64; AOrigin:Integer):Int64;</pre>
+<pre style="border: 0; padding-bottom:0px;">function TDiskPartition.SeekPartition(AHandle:THandle; const AOffset:Int64; AOrigin:Integer):Int64;</pre>
 <div style="font-size: 14px; padding-left: 12px;">'''Description:''' To be documented</div>
 <div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">

Difference between revisions of "TDiskPartition"

Latest revision as of 04:55, 29 January 2025

Contents

Description

Class definitions

Function declarations

Navigation menu

Personal tools

Namespaces

Variants

Views

More

Search

Navigation

Tools