bzr, rsync, and atomic operations

[Matthieu Moy]

Hi,

I'm wondering how bzr operations support concurrent accesses. For
example, what happens if someone does a "branch" or a "pull" from a
branch, if I do a "commit" or a "push" at the same time.

AFAIK, rsync is atomic file-wise, but not for the complete directory.

So, what's the situation? Are concurrent read-write accesses
supported? If not, is it in the TODO list?

Thanks,

-- 
Matthieu