On Feb 01, 2010, at 11:28 PM, Martin v. Löwis wrote: >So what would you do for concurrent writers, then? The current >implementation relies on creat(O_EXCL) to be atomic, so a second >writer would just fail. This is but the only IO operation that is >guaranteed to be atomic (along with mkdir(2)), so reusing the current >approach doesn't work.
I believe rename(2) is atomic also, at least on POSIX. I'm not sure if that helps us though. -Barry
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