[PATCH] ash: clear NONBLOCK flag from stdin when in foreground

[Cathey, Jim]

>>It doesn't; it can't.  Hence my ranting.  A 100% safe
>>100% orthogonal, useful easy-to-use AIO mechanism should
>>have been designed

>Would the hypothetical nonblock_read() and nonblock_write() system
>calls suggested at http://cr.yp.to/unix/nonblock.html be a good
>enough design, or do you think something more is needed?

No, that is just entrenching the polling methodology.
I am a proponent of true AIO design, with _no_ polling
facilities available at all.  (Well, they can be there
but on the same list as gets and friends, so far as
desirability of use goes...)

See: http://en.wikipedia.org/wiki/Asynchronous_I/O

also http://en.wikipedia.org/wiki/DNIX

for details on the AIO system I used and liked best.

-- Jim