Hal Murray <hmur...@megapathdsl.net>:
> Do you have an example of where we need to change a driver variable on the
> fly?
No, I'm bothered because I'm (a) not sure we'll never need to do it, and (b)
pretty sure what the Dread God Finagle will arrange if I assume we won't. :-)
> >> We need to be able to run gpsmon while it is feeding data to ntpd.
> >> Replace
> >> gps with your favorite refclock.
>
> > You'll have to say more, I can't unpack this.
>
> I want to be able to run something like gpsmon while the driver is connected
> to ntpd. If we use SHM, I know how to make the client side read only so we
> can have any number of clients.
>
> I don't know how to do something similar with pipes. I'm willing to do
> something like a TCP listener . Maybe an internal SHM interface and a thread
> per pipe.
Um, yes. That might be tricky. You're describing a general oroblem
with any form of serrial IPC, as opposed to a sharable mailbix.
It's a pretty strong point in SHM's favor. Thanks for making me think about
this.
--
<a href="http://www.catb.org/~esr/";>Eric S. Raymond</a>
My work is funded by the Internet Civil Engineering Institute: https://icei.org
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