[M3devel] GC question version 2

[Darko]

Thanks, I probably will have to use some combination of encapsulation  
and indirection, but that solution isn't cheaper in terms of memory,  
which might be a problem in what is an all-allocated data structure  
(ie, every field value is allocated). I'm basically investigating all  
possible approaches and not against the solution you've suggested.


On 16/01/2008, at 12:27 PM, Tony Hosking wrote:

> This might be possible, but probably would force completion of the  
> current GC to get all the references.  Again, not a particularly  
> nice thing to be doing.   Once again, why not use indirection and  
> weak references.  Probably cheaper, more flexible and portable.
>
> On Jan 16, 2008, at 1:28 PM, Darko wrote:
>
>> Ok, a slightly different approach: Can the GC give me a list of all  
>> the objects that contain a reference to an object? Would it be  
>> thorough (ie not miss any objects)? False positives might be ok.  
>> Then I could check the type of each object and update the  
>> references myself. It would be reasonable to assume that the  
>> references in question were not being changed by any thread during  
>> the checking process.
>>
>> Thanks,
>> Darko.
>