[Python-Dev] wait time [was: Ext4 data loss]
tino at wildenhain.de
Thu Mar 12 22:35:48 CET 2009
Jim Jewett wrote:
> On 3/12/09, "Martin v. Löwis" <martin at v.loewis.de> wrote:
>>> It is starting to look as though flush (and close?) should take an
>>> optional wait parameter, to indicate how much re-assurance you're
>>> willing to wait for.
>> Unfortunately, such a thing would be unimplementable on most of today's
>> operating systems.
> What am I missing?
> class file(_file): ...
> def flush(self, wait=0):
> if wait < 0.25:
> if wait < 0.5 and os.fdatasync:
> if wait < 0.75:
> if os.ffullsync:
What would be wrong with just making the f*sync calls
methods of the file object and that's about it?
alternatively when flush() should get an optional argument,
I'd call it sync and use a set of predefined and meaningful
constants (and no floating point value).
Just my 2ct.
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