[Openais] [PATCH] Add locking to objdb calls & reload notification

[Christine Caulfield]

Christine Caulfield wrote:
> This patch adds locking around objdb calls so that they cannot clash
> with a reload or a write operation.
> 
> It also adds notification to the reload operation. Interested parties
> will get a START and an END notification so they can prepare, and/or
> ignore the flurry of update notifications that happen between the two.

Hmmm, it would have helped if I had remembered to pull the updated patch
off my laptop before posting it, sorry.

Actually the only difference between this and the last one is that it
no-longer prevents the update notifications being sent during the reload
process. If people want all those, they should be able to have them.

Chrissie
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