On 05/15/13 14:20, Jérémie Courrèges-Anglas wrote:
"Peter J. Philipp" <[email protected]> writes:

On 05/15/13 13:41, Jérémie Courrèges-Anglas wrote:
Doesn't kqueue() fit your needs?

Thank you for your reply,

I've never used kqueue before, does this only report events on descriptors
that have been opened?
I think so.

Ok, hmm. My box has 162,000 directories as found with a find / -type d -print | wc -l, I'd like to monitor the entire tree and I don't want to open 162,000 descriptors to see if someone opened a file in some remote corner of my system.

Do you think kqueue can be reworked to look at entire directory trees? I'm almost a believer in what it can do now that you pointed it out to me and I read the manpage a little. I just know too little about it to judge whether the code allows modifications to look at entire directory trees.

I'm wondering if an implementation is done to recurseively watch directories
in inotify (as written about in the limitations), then it would require a lot
less filedescriptors even for kqueue correct?  And thus make monitoring
a filesystem's events a lot more efficient?
As is, kqueue() won't monitor a directory tree recursively.  But there
are examples of kqueue() use; see for example the sysutils/gamin ports
(also devel/glib2 uses it for GIOs, I think).

Thanks, I'll take a look.

-peter

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