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-   -   Delphi Quelltext Optimierung (https://www.delphipraxis.net/174894-quelltext-optimierung.html)

Horst0815 16. Mai 2013 18:40

Delphi-Version: 2010

Quelltext Optimierung
 
bekomm ich das Irgendwie Kleiner geregelt?

DecodeTableX sind dabei Funktionen in verschiedenen Units

Delphi-Quellcode:
          case Dmi0.Header.Type_ of
            // BIOS Information (Type 0)
            0:
              DecodeTable0(Dump);
            // System Information (Type 1)
            1:
              DecodeTable1(Dump);
            // Baseboard (or Module) Information (Type 2)
            2:
              DecodeTable2(Dump);
            // System Enclosure or Chassis (Type 3)
            3:
              DecodeTable3(Dump);
            // Processor Information (Type 4)
            4:
              DecodeTable4(Dump);
            // Cache Information (Type 7)
            7:
              DecodeTable7(Dump);
            // Port Connector Information (Type 8)
            8:
              DecodeTable8(Dump);
            // System Slots (Type 9)
            9:
              DecodeTable9(Dump);
            // BIOS Language Information (Type 10)
            10:
              DecodeTable9(Dump);
            // OEM Strings (Type 11)
            11:
              DecodeTable11(Dump);
            // BIOS Language Information (Type 13)
            13:
              DecodeTable13(Dump);
            // Memory Device (Type 17)
            17:
              DecodeTable17(Dump);
            // 32-Bit Memory Error Information (Type 18)
            18:
              DecodeTable18(Dump);
            // Portable Battery (Type 22)
            22:
              DecodeTable22(Dump);
            // Hardware Security (Type 24)
            24:
              DecodeTable24(Dump);
            // Cooling Device (Type 26)
            26:
              DecodeTable26(Dump);
            // Cooling Device (Type 27)
            27:
              DecodeTable27(Dump);
            // Cooling Device (Type 28)
            28:
              DecodeTable28(Dump);
            // Electrical Current Probe (Type 29)
            29:
              DecodeTable29(Dump);
            // System Boot Information (Type 32)
            32:
              DecodeTable32(Dump);
            // 64-Bit Memory Error Information (Type 33)
            33:
              DecodeTable33(Dump);
            // Management Device (Type 34)
            34:
              DecodeTable34(Dump);
            // Management Device (Type 39)
            39:
              DecodeTable39(Dump);
            // Onboard Devices Extended Information (Type 41)
            41:
              DecodeTable41(Dump);
            // Inactive (Type 126) Structure
            126:
              //ShowMessage('Inactive Table ' + IntToStr(Dmi0.Header.Length))
          end;

Furtbichler 16. Mai 2013 18:57

AW: Quelltext Optimierung
 
Delphi-Quellcode:
Type
  TDecodeProc = Procedure (Dump : TDump);
 
Const
  DecodeProc : Array [1..N] of TDecodeProc = (
   DecodeProc1, DecodeProc2...
...
);

Procedure CallIt;
Begin
  DecodeProc[Dmi0.Header.Type](Dump);
End;
So könnte das gehen.

sx2008 16. Mai 2013 19:03

AW: Quelltext Optimierung
 
Du kannst den Header-Type und den Zeiger auf die Dump-Funktion in einem Record ablegen.
Delphi-Quellcode:
type
  TDumpProc = procedure(dump:String);

  TDumpRecord = record
    htype : Integer;
    p : TDumpProc;
  end;
In deiner Aufgabenverteilerfunktion gibt es dann ein Konstantenarray:
Delphi-Quellcode:
const
  dumplist:array[0..20] of TDumpRecord = (
  (htype:0; p;DecodeTable0),
  (htype:1; p;DecodeTable1),
  );
begin
In einer Schleife suchst du den passenden htype raus und rufst die Procedur über den Zeiger auf.
Das lohnt aber nur, wenn du sehr viele Prozeduren hast.

Sir Rufo 16. Mai 2013 19:32

AW: Quelltext Optimierung
 
Zitat:

Zitat von Furtbichler (Beitrag 1215563)
Delphi-Quellcode:
Type
  TDecodeProc = Procedure (Dump : TDump);
 
Const
  DecodeProc : Array [1..N] of TDecodeProc = (
   DecodeProc1, DecodeProc2...
...
);

Procedure CallIt;
Begin
  DecodeProc[Dmi0.Header.Type](Dump);
End;
So könnte das gehen.

Oder (ein wenig flexibler, was die Nummerierung und Erweiterung betrifft)
Delphi-Quellcode:
unit DecodeTable;

interface

uses
  Generics.Collections;

type
  TDump = class

  end;

  TDecodeProc = procedure( Dump : TDump );

  TDecodeTable = class
  private
    class var CFDecoderDict : TDictionary<Byte, TDecodeProc>;
  protected
    class constructor Create;
    class destructor Destroy;
  public
    class procedure RegisterDecoder( AType : Byte; ADecoder : TDecodeProc );
    class function Decode( AType : Byte ) : TDecodeProc; overload;
    class procedure Decode( AType : Byte; ADump : TDump ); overload;
  end;

implementation

{ TDecodeTable }

class constructor TDecodeTable.Create;
begin
  CFDecoderDict := TDictionary<Byte, TDecodeProc>.Create;
end;

class function TDecodeTable.Decode( AType : Byte ) : TDecodeProc;
begin
  Result := CFDecoderDict[AType];
end;

class procedure TDecodeTable.Decode( AType : Byte; ADump : TDump );
begin
  Decode( AType )( ADump );
end;

class destructor TDecodeTable.Destroy;
begin
  CFDecoderDict.Free;
end;

class procedure TDecodeTable.RegisterDecoder( AType : Byte; ADecoder : TDecodeProc );
begin
  CFDecoderDict.AddOrSetValue( AType, ADecoder );
end;

end.
Jetzt ein paar Units mit den Prozeduren
Delphi-Quellcode:
unit DecodeA;

interface

uses
  DecodeTable;

implementation

procedure DecodeTable0( Dump : TDump );
begin

end;

initialization

TDecodeTable.RegisterDecoder( 0, DecodeTable0 );

end.
und aufrufen
Delphi-Quellcode:
var
  MyDump : TDump;

// entweder
TDecodeTable.Decode( 0 )( MyDump );
// oder
TDecodeTable.Decode( 0, MyDump );
Ach ja, den direkten Aufruf der Prozeduren kann man so auch ganz nett unterbinden :)


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