[San-Diego-pm] A few questions of Perl
christopher.p.hart at gmail.com
Wed Dec 9 18:32:52 PST 2009
thanks for the save on 2 keith. :)
i was off by a mile, and Time::HiRes is a great suggestion for the relative
I would hope, but can't confirm, alex is using something *nixy, though
"a test application running on PC." is somewhat nondescript in that regard.
On Wed, Dec 9, 2009 at 6:21 PM, Keith Thompson <kst at mib.org> wrote:
> On Wed, Dec 09, 2009 at 05:49:10PM -0800, Christopher Hart wrote:
> > 1. I would assume, (possibly incorrectly) that using the Socket or
> > IO::Socket modules would provide the inherent ability to open more than
> > tcp socket for send/receive. Although i could see being limited in having
> > more than one [socket bound to a] filehandle open, there are always a
> > billion ways to do something in perl.
> I lack sufficient expertise to comment on this, but ...
> > 2. I've seen someone do a sleep(undef, undef, undef, 0.2); to wait a
> > quarter-second, but i can't confirm it works.
> It's select(undef, undef, undef, 0.25). "perldoc -f select" for
> more information (you'll need to scroll past the "select FILEHANDLE"
> But I'm not sure that that's what Alex is looking for. He wrote:
> 2. Is there a event scheduler modules I can use to schedule the sending
> a message say several milisecond in the future.
> which suggests he wants schedule the event to take place in the future,
> and continue doing other stuff until it triggers.
> Time:HiRes::ualarm lets you schedule a SIGALRM signal to be delivered
> after a specified time.
> Keith Thompson (The_Other_Keith) kst at mib.org <http://www.ghoti.net/~kst<http://www.ghoti.net/%7Ekst>
> "We must do something. This is something. Therefore, we must do this."
> -- Antony Jay and Jonathan Lynn, "Yes Minister"
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