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# README: If you set the env var to a number greater than 10,
# we will use that many children
use Config;
BEGIN {
unless ($Config{useithreads}) {
print "1..0 # SKIP your perl does not support ithreads\n";
exit 0;
}
if ($INC{'Devel/Cover.pm'}) {
print "1..0 # SKIP Devel::Cover does not work with threads yet\n";
exit 0;
}
}
use threads;
use strict;
use warnings;
use Test::More;
plan skip_all => 'DBIC does not actively support threads before perl 5.8.5'
if $] < '5.008005';
use DBIx::Class::Optional::Dependencies ();
use Scalar::Util 'weaken';
use lib qw(t/lib);
use DBICTest;
my ($dsn, $user, $pass) = @ENV{map { "DBICTEST_PG_${_}" } qw/DSN USER PASS/};
plan skip_all => 'Set $ENV{DBICTEST_PG_DSN}, _USER and _PASS to run this test'
. ' (note: creates and drops a table named artist!)' unless ($dsn && $user);
plan skip_all => 'Test needs ' . DBIx::Class::Optional::Dependencies->req_missing_for ('rdbms_pg')
unless DBIx::Class::Optional::Dependencies->req_ok_for ('rdbms_pg');
my $num_children = $ENV{DBICTEST_THREAD_STRESS} || 1;
if($num_children !~ /^[0-9]+$/ || $num_children < 10) {
$num_children = 10;
}
use_ok('DBICTest::Schema');
my $schema = DBICTest::Schema->connect($dsn, $user, $pass, { AutoCommit => 1, RaiseError => 1, PrintError => 0 });
my $parent_rs;
eval {
my $dbh = $schema->storage->dbh;
{
local $SIG{__WARN__} = sub {};
eval { $dbh->do("DROP TABLE cd") };
$dbh->do("CREATE TABLE cd (cdid serial PRIMARY KEY, artist INTEGER NOT NULL UNIQUE, title VARCHAR(100) NOT NULL UNIQUE, year VARCHAR(100) NOT NULL, genreid INTEGER, single_track INTEGER);");
}
$schema->resultset('CD')->create({ title => 'vacation in antarctica', artist => 123, year => 1901 });
$schema->resultset('CD')->create({ title => 'vacation in antarctica part 2', artist => 456, year => 1901 });
$parent_rs = $schema->resultset('CD')->search({ year => 1901 });
is ($parent_rs->count, 2);
};
ok(!$@) or diag "Creation eval failed: $@";
my @children;
while(@children < $num_children) {
my $newthread = async {
my $tid = threads->tid;
weaken(my $weak_schema = $schema);
weaken(my $weak_parent_rs = $parent_rs);
$schema->txn_do(sub {
my $child_rs = $weak_schema->resultset('CD')->search({ year => 1901 });
my $row = $weak_parent_rs->next;
if($row && $row->get_column('artist') =~ /^(?:123|456)$/) {
$weak_schema->resultset('CD')->create({ title => "test success $tid", artist => $tid, year => scalar(@children) });
}
});
sleep(1); # tasty crashes without this
};
die "Thread creation failed: $! $@" if !defined $newthread;
push(@children, $newthread);
}
ok(1, "past spawning");
{
$_->join for(@children);
}
ok(1, "past joining");
while(@children) {
my $child = pop(@children);
my $tid = $child->tid;
my $rs = $schema->resultset('CD')->search({ title => "test success $tid", artist => $tid, year => scalar(@children) });
is($rs->next->get_column('artist'), $tid, "Child $tid successful");
}
ok(1, "Made it to the end");
$schema->storage->dbh->do("DROP TABLE cd");
done_testing;
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