select(2) with keyboard and mouse devices

From: Allen David Winter <winterz_at_clark.net>
Date: Tue, 03 Mar 1998 16:47:50 -0500

I noticed a peculiar situation using the select system call
to monitor key presses and mouse movement. It seems
that select stops monitoring /dev/keyboard0 and /dev/mouse0
when the CPU load exceeds some threshold (which I have yet to be
able to determine). This happens in DU4.0B and DU4.0D.

What am I missing?
 * Is there a tunable kernel parameter to change this threshold?
 * Is there some special way that the keyboard/mouse devices
   must be opened in order for this to work?
 * Is select broken in Digital Unix?
 * ??

This is some very important software that I need to port
from Solaris to Digital Unix, so any ideas would be very
much appreciated.

 -Allen Winter, winterz_at_clark.net
Received on Tue Mar 03 1998 - 22:56:00 NZDT

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