On Mon, 5 Jan 2004, Greywolf wrote:

> Date: Mon, 5 Jan 2004 12:02:03 -0800 (PST)
> From: Greywolf <greywolf@starwolf.com>
> To: Andrew Brown <atatat@atatdot.net>
> Cc: mouss <usebsd@free.fr>, tech-kern@NetBSD.org
> Subject: Re: implementing closeall via a syscall
>
> Thus spake Andrew Brown ("AB> ") sometime Today...
>
> AB> >solaris has closefrom(), which does the same thing (using /proc if I'm
> AB> >not mistaken). So that would be a better name.
> AB>
> AB> uh...where?
>
> Solaris 2.8 and above have (paraphrased):
>
> closefrom(int n): close all fds equal to and above n
> fdwalk(int (*fn)(void *, int), void *callback): generate a list of open
> 	file descriptors, passing the pointer to the callback data
> 	as the first arg of fn, and passing the value of the open fd
> 	from the list as the second arg of fn.
>
> I would prefer to see a closem() or closefrom() or whatever apply to
> a range of fds as user-defined, i.e. closem(from,to), which closes all
> descriptors from "from" to "to", inclusive, as a program might wish to
> relocate fds 0, 1, 2 to some other place.  closem(from, -1) or
> closem(-1,to) is what I envisioned.  Unadjustably single-ended ranges
> are a major pain, from a programming point of view.


To me those names are not ideal.  What do you think about closerange() or
close_range()?


George
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