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SubjectRe: [PATCH] nextfd(2)
On 04/06/2012 02:54 AM, Alexey Dobriyan wrote:
>
> Without proc knowledge about fdtable is gathered linearly and still unreliable.
> With nextfd(2), even procful environments could lose several failure branches.
> And they can keep old dumb fd++ or smart /proc/self/fd loops for a change.
>

Incidentally, if we were to create a system call for this -- which I so
far see no reason for -- I would make it return a select-style bitmask
of file descriptors in use, not a "next fd" which would require a system
call per iteration.

-hpa

--
H. Peter Anvin, Intel Open Source Technology Center
I work for Intel. I don't speak on their behalf.



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