Robert Rendler wrote:
> Over the long haul I've made a couple of programs that use sockets
> but still I don't understand to very basics of it yet. That is how to
> properly send and receive the data. So far what I have been doing is
> thus:
>
> $client = IO::Socket::INET->new('server');
That can't work. You need a port at least. Where are you checking for failed
connection? Do you have "use strict" and -w in your program.
>
> while (<$client>) {
> chomp;
> next unless $_;
> ....
>
> But doing it that way I sometimes have weirdness where I receive
> nothing yet the 'next unless' statement doesn't catch it for some
> reason.
By "receive nothing", I assume you mean receive an empty line terminated by
\n (or whatever you have $/ set to).
For the next to happen, $_ must contain (after chomping) either '' (empty
string), or '0' (a single zero). If $_ contains anything else (including any
amount of whitespace), $_ will be considered "true" and the next will not
execute.
So, tell us exactly what is in $_ that you think should trigger "next" but
doesn't.
> For sending I usually just print to the $client variable like
> a filehandle.
That's fine.
> I'm just wondering if this is the right way that I should be doing it.
> Doing it way I currently am seems to result in a lot of flakeyness.
>
> So any help in setting me on the right course would be very
> appreciated.
>
> Thanks.
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