#!/usr/bin/perl -w
# Copyright 2012 Kevin Ryde
# This file is part of Math-NumSeq.
#
# Math-NumSeq is free software; you can redistribute it and/or modify it
# under the terms of the GNU General Public License as published by the Free
# Software Foundation; either version 3, or (at your option) any later
# version.
#
# Math-NumSeq is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
# or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
# for more details.
#
# You should have received a copy of the GNU General Public License along
# with Math-NumSeq. If not, see <http://www.gnu.org/licenses/>.
use 5.004;
use strict;
use Test;
plan tests => 2;
use lib 't';
use MyTestHelpers;
BEGIN { MyTestHelpers::nowarnings() }
use Math::NumSeq::OEIS::File;
# uncomment this to run the ### lines
#use Smart::Comments;
my $skip;
my $have_threads;
use Config;
if (! $Config{useithreads}) {
MyTestHelpers::diag ('Config no useithreads in this Perl');
} else {
$have_threads = eval { require threads; 1 }; # new in perl 5.8, maybe
if (! $have_threads) {
MyTestHelpers::diag ("threads.pm not available -- $@");
}
}
if (! $have_threads) {
$skip = "due to threads.pm not available";
}
my $seq;
unless ($skip) {
eval { $seq = Math::NumSeq::OEIS::File->new (anum => 'A000040') } # primes
or $skip = $@;
}
MyTestHelpers::diag ('seq fh: ', $seq && $seq->{'fh'});
unless ($skip) {
$seq->next;
$seq->next;
$seq->next;
}
sub foo {
return ($seq
? [ $seq->next, $seq->next, $seq->next, $seq->next ]
: []);
}
my $thread_got = [];
if ($have_threads) {
my $threads_class = 'threads';
my $thr = $have_threads && $threads_class->create(\&foo);
$thread_got = $thr->join;
}
### $thread_got
my $want = ($skip ? [] : [4,7, 5,11, 6,13, 7,17]);
skip ($skip,
join(',',@$thread_got),
join(',',@$want),
'same in thread as main');
my $main_got = foo();
skip ($skip,
join(',',@$main_got),
join(',',@$want),
"thread doesn't upset main");
exit 0;