I want to write perl modules that keep a dbm file (or other disk-based hash) of programs that use them. So I can find out "who uses this code?"

I have perl 5.10 and want to use the "best" dbm for the job.

So, what is the best dbm to use? gdbm?

I think I would store keys along the lines of "__PACKAGE__ $FindBin::Bin/$FindBin::$Script" -> localtime().

And I would remove keys with time values sufficiently old, say older than 2 years.

I need to support concurrency to a degree, as programs that use the same module may run simultaneously. It's okay if a record doesn't get written (I just want to have a way to inspect who is a likely consumer of the code in a module). It is *not* okay if the dbm gets corrupted or "breaks" the rest of the code. Maybe I wrap the whole thing in a module that uses caller() to keep track.... "use ModuleAuditor;" Is there an existing CPAN solution? Thanks Wise Monks!

In reply to best dbm for small dictionaries? write locking or concurrency needed by Anonymous Monk

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