des at des.no
Tue Dec 6 03:23:41 PST 2005
Fredrik Lindberg <fli+freebsd-current at shapeshifter.se> writes:
> Dag-Erling Smørgrav wrote:
> > If the devd loop is an *alternative* to the polling loop, there's
> > even less reason to use threads.
> Yes it's an alternative, reading a variable versus doing a sysctl call
> each interation. It seemed like I good idea, when I first wrote this
> (almost a year ago), to have a thread providing a cached value of the
> AC state. But maybe I was trying to be too smart or something.
Yes. Not only is it a bad design idea, but the implementation is
wrong, and likely to fail badly when compiled at high optimization
levels. Please revert powerd.c to revision 1.13.
Dag-Erling Smørgrav - des at des.no
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