I can't say I've thought deeply about this, but instance creation is wrapped in
a transaction - so long as the side effects you are concerned about, including
reads the store, they should be atomic due to BDB locking.
On Mar 18, 2010, at 6:37 AM, Alex Mizrahi wrote:
> IE> Should be easy to add
IE> Should be easy to add an index lookup to shared-initialize and a check
IE> in indexed slot access as to whether you are changing the unique value.
Hmm, there is a problem with this and concurrency -- one thread does a
check, it passes and it inserts a value, and another thread does the same
I tend to agree with Alex on this one. Moreover, I'm not going to have time to
make changes for awhile, but I'd be willing to review a patch.
Should be easy to add an index lookup to shared-initialize and a check in
indexed slot access as to whether you are changing the unique value. Can a
