Thats a lot of useful information, thanks. I'm a little puzzled however of how to get separate processes to use the same shared memory. With fork I can use some form of handle which is inherited, but how does it work when the writer processes have been started separately?
I had a look IPC::MM as it allows the creation of shared hashes (not using storable) but it has the above problem (I think).

In reply to Re^6: Multiple write locking for BerkeleyDB by dino
in thread Multiple write locking for BerkeleyDB by dino

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