What refers to this object?????????
BlitzMax Forums/BlitzMax Programming/What refers to this object?????????
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| I'm having memory leak woes. Something I've added recently is stopping my game objects from being collected, and I can't find out what. Is there some hack I can use as a debug tool to find out what refers to an object? Can I manually delete an object or at least make it garbage, so calling it causes an error? I know a "good design" prevents memory leaks, but this is a huge non-trivial project with lots of interconnectivity. |
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| I'm also getting errors with a list sort, both objects to compare are turning up null. How do they even get in the list? |
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Unhandled Exception: Can't insert Null object into listType TType Field x:int End type Local list:TList = New TList Local typ:TType = New TType typ.x = 10 Print typ.x typ = null list.AddLast(typ) For Local loop:TType = EachIn list Print loop.x next Null gets flagged in debug, ignored (In the EachIn loop) in release (BlitzMax 1.41) Dabz Last edited 2010 |
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| I am in debug mode! |
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| Well, apparently, this is an old bug (null in lists), my code picks up the moment the null tries to enter the list, hence the message, you stated:- How do they even get in the list? Not to sound too prickly, but how do I know your in debug mode when you suggesting your null objects are in a list? Your thread is that vague you dont even suggest what version of BlitzMax your using? Any chance you can give everyone a chance to figure out what going on other than 'I am in debug mode'... Dabz |
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| I think it's caused by using tlinks to remove things The objects existed at some point but they were removed from a tlink and now they're null. To be honest I was just ranting and didn't expect anyone would want to help. |
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| In that case, couldnt you just use a plain and simple test for Null before using anything? As mentioned, this is/was an apparent known bug, which Gfk thought might have been fixed in 1.41 since it spat out a unhandled exception error. Which was why I posted! :P To be honest I was just ranting and didn't expect anyone would want to help. Mmmm, odd reply, but, hey, never mind! Dabz |
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| I hope you know about the bug in Tlist and sorting with an external function. |
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| I don't. It's an external sort function. In fact, I put asserts in my external sort functon long ago as a matter of good practice, which is how I'm detecting these null objects. What is the bug? |
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| http://www.blitzmax.com/Community/posts.php?topic=90750#1032562 you are funny. Last edited 2010 |
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| I thought that bug was just with compare methods and not compare functions? |
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| Nope! as long as you are doing sorting inside Tlist with an external function it will break. Last edited 2010 |
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| But I've been doing it for ages and it's only broke very recently?? |
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| try backing up the module and modifying as suggested in the thread, recompile it and test. that will probably be the only way you are really going to know. I have been proved to be wrong often so I would give it a try to be sure. Last edited 2010 |
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| The list issue isn't anything to do with the memory leak. I'd give my right arm to be able to manually delete an object right about now. |
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