On May 21, 2007, at 6:48 AM, Daniel Molina Wegener wrote:
On Monday 21 May 2007 03:57:58 John-Mark Gurney wrote:
Daniel Molina Wegener wrote this message on Sun, May 20, 2007
at 18:31 -0400:
I'm coding an application using the kqueue facility, but
I see that I can't handle open and read events. Is planned
to implement these handlings in the future?. Also, which
facility can I use to handle these kind of events?
I'm unsure what you mean by open and read events? Do you
mean getting an event when another process opens are file?
or? As for read, they work fine for sockets, as w/ select,
files are always ready to read even though they may block to
read from disk...
Hello,
I mean vnode events, in the manual page I see NOTE_WRITE, but I
need NOTE_OPEN and NOTE_READ. Is there any chance to get these
kind of events?
They should be easy to add.. All you would need to do for NOTE_OPEN
would be to add a vop_open_post hook to VOP_OPEN that calls
VFS_KNOTE_LOCKED(..., NOTE_OPEN). Similarly for read.
Take a look at how, for example, NOTE_CREATE is implemented
(vop_create_post in sys/kern/vfs_subr.c) and how we add VOP hooks
(sys/kern/vnode_if.src).
Why do you need these?
-- Suleiman
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