Uses of read MIN time (Was: termio under SysV (kbdhit() and getch()))

Andrew Poling ecf_hap at jhunix.HCF.JHU.EDU
Fri Mar 3 01:16:34 AEST 1989


In article <1182 at naucse.UUCP> jdc at naucse.UUCP (John Campbell) writes:
>
>It turns out I misread the documentation.  Unlike another (to remain
>unamed) operating system I use, the MIN time is not the timeout value
>of the read, but rather the required number of 1/10 seconds the read
>must take!  Anyone want to tell me how useful this is?

I've used a MIN value of 0 to effect painless polling.  You can also put
the timing wait for a loop here instead - that way you spend what
would be "wasted" time watching the input.


>Thanks to all, patience requested of some, for who knows who else might be
>as confused as I appear to be?

Confused?...by System V?...Nah!   :-)



Andy
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