Re: kqueue - supported filesystems?
Re: kqueue - supported filesystems?
- Subject: Re: kqueue - supported filesystems?
- From: Dave Zarzycki <email@hidden>
- Date: Mon, 12 Jun 2006 11:01:49 -0700
On Jun 12, 2006, at 10:55 AM, Josh Graessley wrote:
On Jun 12, 2006, at 8:34 AM, Dave Zarzycki wrote:
On Jun 9, 2006, at 6:31 PM, Jim Correia wrote:
The kqueue man page says:
Not all filesystem types support kqueue-style notifications.
And even
some that do, like some remote filesystems, may only support
a subset of
the notification semantics described here.
Which filesystems are supported?
If memory serves me correct, just HFS in Tiger. But we're trying
(no promises) to move that logic up to the VFS layer so that all
file systems get it for free.
It is worth noting that even once this is at the VFS layer, there
will still be issues. I believe that network file systems are
unlikely to support this. The protocol would need to push this
information to the clients.
Well, given a VFS layer implementation, the notifications would be
local only, much like memory mapping a file on a network volume can
only, at best, share memory with local processes.
davez
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