Martijn Faassen <[EMAIL PROTECTED]> schreibt:
>Yeah, and I do need to be cross-platform with this, so inodes are not
>ideal.
Hi,
it depends on how cross-platform you need to be and whether you have
another solution that is ideal;)
For Win32 you can use the low value of the FileIndex number of the
filesystems master file table. This is the last value of the (10-)tuple
returned by the Win32 API method
win32file.GetFileInformationByHandle()
Note that the new Blob-support also uses win32file
Concerning the problem of the different filesystems and devices I can only
guess whether your use cases really need to take different devices into
account. In our use case we simply assumed that the files are on a single
device and remain were they are. If you follow Christian's suggestion of
using hard links with the oid of a shadow object in the ZODB a similar
restriction applies.
In any case I'm also interested in IKeyReferences for files, so I hope
that there is a better solution that is cross platform, allows an
efficient lookup, works across devices, and offers also an easy way to
detect catalog relevant changes. I fear there is no ideal solution to all
these problems and we need to consider trade-offs.
Regards,
Uwe
________________________________________________________________
Dr. Uwe Oestermeier
Institut für Wissensmedien
Knowledge Media Research Center
Konrad-Adenauer-Str. 40
D-72072 Tuebingen
Germany
[EMAIL PROTECTED]
Tel. +49 7071 979-208
Fax +49 7071 979-100
_______________________________________________
Zope3-dev mailing list
Zope3-dev@zope.org
Unsub: http://mail.zope.org/mailman/options/zope3-dev/archive%40mail-archive.com
