in reply to Forking Clients

Is gepapa aware that the OPed code has the following line:
$pid, @resp = $connection->rpc('ClarRPCService::system_call', $command +);
If this highly suspicious statement is just, as I assume, a cut/paste typo, can gepapa please update the OP?

If this is a valid statement, can someone please explain to a forking tyro such as myself just what is going on here?

Replies are listed 'Best First'.
Re^2: Forking Clients
by AnomalousMonk (Archbishop) on Oct 17, 2008 at 04:25 UTC
    The lexical variable $pid is evaluated and the result is then discarded. The variable is not tie-d to anything, so there can be no side effect. Don't you see a warning from this (although you don't use warnings; in your sample code)? All output from the $connection->rpc() function call is assigned to @resp. What's the point of having $pid in the statement? A typo or a thinko is strongly suggested.
    >perl -wMstrict -le "my $pid = 'foo'; my @resp = qw{ a b c }; sub S { return qw{ FOO bar quux } } $pid, @resp = S(); print qq{$pid @resp}; " Useless use of private variable in void context at -e line 1. foo FOO bar quux
      I added the $pid part last second, it should have parens around the two variables I will fix it. I didn't really pay attention to it, I fixed the OP Thanks.
Re^2: Forking Clients
by gepapa (Acolyte) on Oct 16, 2008 at 12:34 UTC
    Hi, What is your main worry with the statement? I guess I am not seeing it.