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#!perl -w
use strict;
# avoiding this prologue would be nice, but it seems to be unavoidable,
# see "It is also important to note ..." in perldoc threads
use Config;
my $loaded_threads;
BEGIN {
if ($Config{useithreads} && $] > 5.008007) {
$loaded_threads =
eval {
require threads;
threads->import;
1;
};
}
}
use Test::More;
$Config{useithreads}
or plan skip_all => "can't test Imager's threads support with no threads";
$] > 5.008007
or plan skip_all => "require a perl with CLONE_SKIP to test Imager's threads support";
$loaded_threads
or plan skip_all => "couldn't load threads";
$INC{"Devel/Cover.pm"}
and plan skip_all => "threads and Devel::Cover don't get along";
use Imager;
# test that image file limits are localized to a thread
plan tests => 31;
Imager->open_log(log => "testout/t082limit.log");
ok(Imager->set_file_limits(width => 10, height => 10, bytes => 300),
"set limits to 10, 10, 300");
ok(Imager->check_file_limits(width => 10, height => 10),
"successful check limits in parent");
ok(!Imager->check_file_limits(width => 10, height => 10, sample_size => 2),
"failed check limits in parent");
my @threads;
for my $tid (1..5) {
my $t1 = threads->create
(
sub {
my $id = shift;
my $dlimit = $tid * 5;
my $blimit = $dlimit * $dlimit * 3;
ok(Imager->set_file_limits(width => $dlimit, height => $dlimit,
bytes => $blimit),
"$tid: set limits to $dlimit x $dlimit, $blimit bytes");
ok(Imager->check_file_limits(width => $dlimit, height => $dlimit),
"$tid: successful check $dlimit x $dlimit");
ok(!Imager->check_file_limits(width => $dlimit, height => $dlimit, sample_size => 2),
"$tid: failed check $dlimit x $dlimit, ssize 2");
is_deeply([ Imager->get_file_limits ], [ $dlimit, $dlimit, $blimit ],
"check limits are still $dlimit x $dlimit , $blimit bytes");
},
$tid
);
push @threads, [ $tid, $t1 ];
}
for my $thread (@threads) {
my ($id, $t1) = @$thread;
ok($t1->join, "join child $id");
}
ok(Imager->check_file_limits(width => 10, height => 10),
"test we still pass");
ok(!Imager->check_file_limits(width => 10, height => 10, sample_size => 2),
"test we still fail");
is_deeply([ Imager->get_file_limits ], [ 10, 10, 300 ],
"check original main thread limits still set");
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