On Jan 31, 2010, at 08:10 PM, Silke von Bargen wrote: >Martin v. Löwis schrieb: >> There is also the issue of race conditions with multiple simultaneous >> accesses. The original format for the PEP had race conditions for >> multiple simultaneous writers; ZIP will also have race conditions for >> concurrent readers/writers (as any new writer will have to overwrite >> the central directory, making the zip file temporarily unavailable - >> unless they copy it, in which case we are back to writer/writer >> races). >> >> Regards, >> Martin >> >> >Good point. OTOH the probability for this to happen actually is very small.
And yet, when it does happen, it's probably a monster to debug and defend against. Unless we have a convincing cross-platform story for preventing these race conditions, I think a single-file (e.g. zipfile) approach is infeasible. -Barry
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