Opening/closing References in TS-engine does not work as expected, so creating memory hooks. Any solutions?

Hi!
As my project had grown beyond the point where I could keep a global overview, I tried creating atool that dynamically creates a kind of hirarchy for my TS libraries. It runs quite well for a small test setup, but crashes due to missing memory for the whole project. Any ideas?
A short description: I do all coding in LV7.1.
* Firts I open an automation refnum to TS.Iengine and invoke the method 'GetSequenceFileEx' with the path to my main seqfile, Flags = 0 and conflicthandler_Error.
* Than I use that sequencefile object to invoke the method 'Getsequence' with an index of 0 (assuming this beeing the 'MainSequence').
* For the returned sequence object I invoke the method 'GetNumSTep', which is fed into a For-Loop. Inside that loop, the very same object reference is used to:
- invoke 'GetStep' with the loop index
- with the step object i get some proiperties like Name, some expression and bolean values. If the step 'can_Specify_module', I invoke 'GetDescriptionEx', before the step object is closed (cvlose reference vi)
- I also invoke 'Parameters' on the step object. The parameter reference is used to access the property 'getLocation', which than is used as lookupString to access the property 'GetNumSubProperties', which I take as number of parameters of that step. Finally the parameters reference is closed
* The reference to the sequence object is closed after the for loop.
I fianlly get an array of description for all steps in the sequence file, in the order they are called from mainsequence there.
This array is used to recursively add a similar subarray for any subsequence call in it, until all calls are resolved (using a while loop that runs until the loop counter reaches the number of steps in the step description array).
The array is than scanned for 'typical' errors of mine like wrong parameter number at subsequence calls, missing/misspelled subsequences andf so on.
The LabVIEW execution accumulates more than 1 GB of RAM. LabVIEW itself reports just some 100kB of used RAM. So I assume the difference is RAM used by TS as a child process in LV. What can be done?
A vi with this code is provided (AS IS!).
Attachments:
SeqFileAnalyser.zip ‏192 KB

Hello Lul,
I tried out you tool and took a quick look at it and it ran fine. I did notice that LV memory grows during execution but only a few kb with a standard demo from TS (the increase is about the same size as the file being saved at the end). This is expected bahavior since results are being stored in memory during execution. When it is done, my mem goes back to about what it used to be before running. 1 GB of Mem seems to be very very very high! Did you expect it to be like this? How big is your txt file being created? Is the VI you posted exactly what you are using or do you have additinal loops that make the VI run continuosly and save to txt after multiple runs? I did not see any critical issues with your VI but I also did not go into your code in debth.
As long as you close all your TS references in LV, you should not havbe any mem leaks.
If you expect big fiole to be created, your PC will use up all RAm then use Virtual mem, the size for Virtual mem can be set in the Control Panel in Windows, usually tough, the system can set it dinamically, this might help you avoid crashe.
Hope this helps
Nick

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