Shane Hathaway wrote:
I think you are wrong, because the manpage (for IRIX) says otherwise.Oliver Bleutgen wrote:Shane Hathaway wrote:On the filesystem, the problem seems much more difficult, since there are no transactions. You'd like the kernel to send Zope a message anytime someone modifies a file in a certain hierarchy, but that would require kernel hacking.
FWIW, since I had the same problem some time ago (which could be solved in another way),
I dug out an url, which might be of interest - probably you already know about it:
FAM, used by the two major open source desktop envs:
http://oss.sgi.com/projects/fam/
It may at least help to make the whole problem more os independend.
They have a lot of related pointers on their homepage.
I've seen it before, but I don't think FAM is able to monitor an entire directory tree. It only monitors individual files. I'd really like to be wrong. :-)
Additionally, it wouldn't be of much use for kde etc. if it only could monitor files. I think a filemanager would mainly be interested in directory changes (files added/deleted).
Then there's also dnotify (also reference from the FAM site) - there's hope that the "d" isn't an acronym for "file" ;).
I remember someting about recent 2.4.x versions having the prerequisites to use that.
I don't have any expirience on win32, but just searched google.Btw. windows (>=nt IIRC) already has the capability to notify on directory alteration events, without polling.
Do you know what API? That would sure help.
There's Win32::ChangeNotify for perl, described here
http://www.xav.com/perl/site/lib/Win32/ChangeNotify.html
and this seems to use ReadDirectoryChangesW, decribed here:
http://msdn.microsoft.com/library/default.asp?url=/library/en-us/fileio/base/readdirectorychangesw.asp
cheers,
oliver
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