See also Apple's Spotlight, which is similar to Linux's Beagle. I believe that
Windows-Next will also have this capability. So, yes, I think this should be a
primary use case for this new API.
Mike
John Levon wrote:
On Wed, May 03, 2006 at 07:31:08PM -0700, Prakash Sangappa wrote:
If you where to watch for events on an entire directory tree, what types
of events that would be?
Presumably there would be some way to specify, but file creation/deletion would
be the most obviously useful events.
How would this be useful?
Beagle wants it, I think:
http://beaglewiki.org/Main_Page
as well as some other GNOME things, apparently.
can be to just a watch on the directory "/etc". The FILE_CREATE event would
mean that a file or a directory was created under "/etc". Once the
application gets this event, it can go and check if the file got created.
Does this mean we don't get told /what/ got created? Is an application that
wants to know "what files are disappearing/appearing under /foo/bar/?" going to
have to readdir() the whole directory every time it gets an event?
How does it interact with unmounting the underlying filesystem?
It will hold a reference to the 'vnode' of the file/directory in the kernel,
while we have the file events monitor on it. If the file system gets
unmounted, it will de-register the monitor and send an exception event saying
the filesystem got unmounted. These exception events need to be defined.
Sounds sensible...
regards
john
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