Sending it again.. my reply got lost...

I am the person working on this feature.


Briefly, the File Events Notification(FEN) facility provides means to
monitor a file or directory for changes.  The API is based on the event
ports(the event notification framework) that was introduced in Solaris 10.
The FEN facility will be added as an event source to the event 
notification framework.

It is similar to FAM(SGI)/Gamin. But from what I know,  FAM & Gamin,
are user land implementations as a file monitoring services. They in 
turn use kernel
file monitoring mechanisms  like 'kqueues'(BSD),  'inotify'(on Linux) 
and 'imon'(SGI).
On systems  where such kernel mechanisms  are not present it just polls.

The FEN facility being added to Solaris is a kernel mechanism. Using 
these interfaces, applications
can register files and directories to be monitored for changes and 
receive an event notification,
via an event port, when  change occurs.  In that sense, it is  similar 
to  'kqueues', 'inotify', 'imon',
file monitoring mechanisms.

There has been discussion  regarding File Event Notification on the 
performance
community forum ' [EMAIL PROTECTED]'.

With regards to why is this case not public -

You may have noticed, not all cases are discussed in public. We are 
still transitioning
into the open development model.  More and more cases are being 
discussed in public.
I can certainly try and find out if we can make the case materials for 
this case public.

-Prakash.
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