Using Devel::Peek or Internals (from CPAN), you can find out the refcount
of a thing. I would like to go a step further and list what objects/data
bits refer to the thing. I realize this probably requires exhaustively
searching all the symbol tables or something like that, but it should be
theoretically possible, if computationally expensive.
The reason I want to do this is that we have some objects that are not
being DESTROYed when we expect, and thus not closing their database
handles. We have tried figuring out where the circular reference is by
inspecting our code to no avail. (We reason that if we can find out what
points to our object soon after creation, references that would later be
circular are not yet so and we should be able to find them).
Is there a module that does this? Or perhaps a function of the debugger?
Thank you kindly for any pointers.
- Alex Aminoff
BaseSpace.net
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