threads->join Return Context.

submersible_toaster has asked for the wisdom of the Perl Monks concerning the following question:

Hello Monks

While fiddling around with 5.8.0 and threads I found problems getting the correct return from my threads using ->join Returning a scalar seems to be no problem but trying to return an array or hash seem to be evaluated in scalar context.

#!/usr/dev/perl/bin/perl -w
use strict;
use threads;
use Data::Dumper;

my $thread = threads->new(
        sub { my %foo;
              @foo{1..100}  = (1..100);
              print Dumper %foo;
              return %foo }
        );

print "Upon Joining ", $thread->join;
[download]

Comment on threads->join Return Context. Download Code

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Re: threads->join Return Context. by submersible_toaster (Chaplain) on Nov 19, 2002 at 06:48 UTC
Gahhh.. Not really a question is it?! Not to mention that I just realised that returning a reference works no worries... but what if I wanted to return an array and a hash... push references to each into an array and return a reference to that? Aye.	[reply]
Re: threads->join Return Context. by Aristotle (Chancellor) on Nov 20, 2002 at 15:25 UTC
`return [ \%foo, \@bar, $baz ];` or maybe `return { foo => \%foo, bar => \@bar, baz => $baz, };` [download] Makeshifts last the longest.	[reply] [d/l] [select]