[ZODB-Dev] storage API question

[Jim Fulton]

Toby Dickenson wrote:
> 
> All of the current storages acquire a lock for the duration of their
> 'store' method, because they need to protect internal data structures
> that might be used by reads, packs, or non-transactional-undoes
> occuring in different threads.
> 
> Does the storage also have to defend against 'store' being called from
> two threads concurrently for the same transaction?

No. There is a separate transaction lock that prevents two threads
from committing at the same time.

Jim

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