/
51threadtxn.t
121 lines (88 loc) · 3.44 KB
/
51threadtxn.t
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BEGIN { do "./t/lib/ANFANG.pm" or die ( $@ || $! ) }
# README: If you set the env var to a number greater than 5,
# we will use that many children
use Config;
BEGIN {
unless ($Config{useithreads}) {
print "1..0 # SKIP your perl does not support ithreads\n";
exit 0;
}
if ($INC{'Devel/Cover.pm'}) {
print "1..0 # SKIP Devel::Cover does not work with threads yet\n";
exit 0;
}
}
use threads;
use DBIx::Class::Optional::Dependencies -skip_all_without => 'test_rdbms_pg';
use strict;
use warnings;
use Test::More;
plan skip_all => 'DBIC does not actively support threads before perl 5.8.5'
if "$]" < 5.008005;
use Scalar::Util 'weaken';
use Time::HiRes qw(time sleep);
use List::Util 'max';
use DBICTest;
my $num_children = $ENV{DBICTEST_THREAD_STRESS} || 1;
if($num_children !~ /^[0-9]+$/ || $num_children < 5) {
$num_children = 5;
}
my ($dsn, $user, $pass) = @ENV{map { "DBICTEST_PG_${_}" } qw/DSN USER PASS/};
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: $@";
# sleep until this spot so everything starts simultaneously
# add "until turn of second" for prettier display
my $t = int( time() ) + 4;
my @children;
while(@children < $num_children) {
my $newthread = async {
my $tid = threads->tid;
sleep( max( 0.1, $t - time ) );
# FIXME if we do not stagger the threads, sparks fly due to CXSA
sleep ( $tid / 10 ) if "$]" < 5.012;
note ("Thread $tid starting work at " . time() );
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 (0.2); # without this many tasty crashes even on latest perls
};
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");
# Too many threading bugs on exit, none of which have anything to do with
# the actual stuff we test
$ENV{DBICTEST_DIRTY_EXIT} = 1
if "$]" < 5.012;
done_testing;