Why does yum always need a global lock?

[Christoph Höger]

ok, that sounds like some motivation for me do to it. 

I've had a quick look over the source code and could not yet figure out,
which functions really modify stuff in /var/cache/yum, but at a first
glance it seem to be a few. You do not have a list of them flying
around, don't you? ;)

My approach would be to create a decorator (called @needslock or
something) and add it to every function that needs it. That decorator
would look like the one in the attachment.
Is that the yum-way fo doing it?

regards

Christoph


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