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#1: TSimpleGraph Bug??? Author: Neftalí, Location: Spain

Posted: 18/04/05 15:00
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Hello.

At First excuse-me for my bad English... Crying or Very sad

I'am working in a project using the TSimpleGraph component. The thematic one of the project is "Yard Plannig"; It's similar to a parking of cars, but with containers.
I'am creating aprox. 1200 objects in the simpleGraph. All it's working OK, but reviewing the application i think that in the Destroy procedure of the object TSimpleGraph the created objects are not being freed.

Thare are a simple test to make.

I Have created a Destroy Method in TRectangleNode like:

destructor Destroy; override;

and its corresponding implementation.

When the Destroy procedure of the SimpleGraph object is Executed, the code of TRectangleNode.destroy never is Execute and the object is not freed.

To ensure this i have executed the project using AQTime (Profiler) and it's confirmed this.

#2: Author: Stefan, Location: Belgium, Antwerp

Posted: 19/04/05 11:57
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Hi,

Thank you for reporting this.
For now I suggest you update the component yourself so that it frees the objects. We will fix this in the next release, which will be on SourceForge under the extgraph project: http://sourceforge.net/projects/extgraph

Stefan

#3: Author: Neftalí, Location: Spain

Posted: 19/04/05 14:33
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I already have made the changes to correct that error in my code. In the Destroy routine of the component simply i have cross the list of created objects and to release them one by one (for instruction); This change recover the lost memory.

Thanks.

#4: Author: Kambiz, Location: Tehran, Iran

Posted: 21/04/05 18:33
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Neftalí:

Thanks for reporting the memory leak.
I fixed the memory leak in SimpleGraph.

Stefan:

Just for your information, I modified the following procedures to fix thr bug.

Code:

TSimpleGraph.ObjectListChange;
TSimpleGraph.SelectionListChange;
TGraphLink.VerifyLinkedObjects;
TMemoryHandleStream.Destroy;

Thanks everybody and regards

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