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作者:佚名 来源:论坛 2007年10月31日
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unit untGarbagCollector; interface uses Classes; type TGarbagCollector = Class(TObject) private FList: TThreadList; public constructor Create; destructor Destroy; override; procedure Put(const AObject: TObject); procedure Recycle(const MaxCount: Integer); end; function GarbagCollector: TGarbagCollector; implementation var _GarbagCollector: TGarbagCollector; function GarbagCollector: TGarbagCollector; begin if not Assigned(_GarbagCollector) then _GarbagCollector := TGarbagCollector.Create; result := _GarbagCollector; end; { TGarbagCollect } constructor TGarbagCollector.Create; begin FList := TThreadList.Create; end; destructor TGarbagCollector.Destroy; begin try Recycle(FList.LockList.Count); finally FList.UnlockList; end; FList.Free; end; procedure TGarbagCollector.Put(const AObject: TObject); begin try FList.LockList.Add(AObject); finally FList.UnlockList; end; end; procedure TGarbagCollector.Recycle(const MaxCount: Integer); var I: Integer; AList: TList; begin AList := FList.LockList; try I := 0; while (AList.Count > 0) and (I < MaxCount) do begin TObject(AList.Last).Free; AList.Delete(AList.Count - 1); Inc(I); end; finally FList.UnlockList; end; end; initialization finalization if Assigned(_GarbagCollector) then _GarbagCollector.Free; end. |
AObject := TObject.Create; GarbagCollector.Put(AObject); |
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