* Poul-Henning Kamp <[EMAIL PROTECTED]> [011208 05:35] wrote: > In message <[EMAIL PROTECTED]>, Dav > e Rufino writes: > > > > > >On Sat, 8 Dec 2001, Poul-Henning Kamp wrote: > > > >> >They are talking about "per-open", not "per-fd-instance" data, > >> >which could easily exclude dup, dup2, and fcntl(f_DUPFD). > >> > >> If you don't include dup/dup2/fnctl in your accounting, you > >> can only reliably tell "first open", "another open", "some close" > >> and "final close". You an modulate this with the pid, but you > >> still have no idea what is going on in any amount of detail. > > > >Speaking for myself, first open and final close would be all I need for > >the nvidia driver - though i'm sure tracking dup/dup2/fcntl would be > >preferable in the general case. > > first open/last close has been the UNIX way for decades...
Yes, but afaik without a way to differenciate between two opens. Being able to notice whether a file is being operated on via which open is the important part. This would probably involve changing VOP_OPENs to pass a void ** that would be stored in the struct file that would be passed to subsequent ioctl/read/write/close operations. -- -Alfred Perlstein [[EMAIL PROTECTED]] 'Instead of asking why a piece of software is using "1970s technology," start asking why software is ignoring 30 years of accumulated wisdom.' http://www.morons.org/rants/gpl-harmful.php3 To Unsubscribe: send mail to [EMAIL PROTECTED] with "unsubscribe freebsd-hackers" in the body of the message