[Zope-dev] Proposal for optimized Blob handling

[Christian Theune]

Am Mittwoch, den 07.03.2007, 09:34 -0800 schrieb Martin Aspeli:
> 
> 
> Christian Theune-2 wrote:
> > 
> > Am Mittwoch, den 07.03.2007, 14:01 -0300 schrieb Sidnei da Silva:
> >> What exactly do you mean by 'link'? As in 'soft links'? The uploaded
> >> file usually is a temporary file, so you are saying you would create a
> >> soft link on the 'blobs' directory to a file in the $TMP directory? Or
> >> maybe the other way around?
> > 
> > No, I'd create a new hard link into the blob directory so the link to
> > the temporary file can go away without making the inode go away. For the
> > purposes of storing blobs the TMP directory should be on the same
> > partition as the blobs directory anyway.
> > 
> 
> Does this work on Windows?

Link does not work on Windows using the link() function from the os
module.

I don't know whether Windows has any API for doing this kind of
operation.

In any case we can fall back (e.g. if the link() call fails) to copying
the data as this is just an optimization.

Please consider looking at my upcoming proposal for discussion.

In this thread I'd like to keep the focus on the change of the publisher
to use NamedTemporaryFile.

Christian

PS: Thanks for the input though.

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