X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=blobdiff_plain;f=t%2F51threadtxn.t;h=6c781e5629aca2bcfad5df4aca4ed9d582cf08f1;hb=13fd7cde4bfdf09da40fedc02ade59bffb766925;hp=3cc67791f373633590f50189037da5f835c0883e;hpb=a1cb5921a914f087163914b010ca0c4e72a57dcc;p=dbsrgits%2FDBIx-Class.git

diff --git a/t/51threadtxn.t b/t/51threadtxn.t
index 3cc6779..6c781e5 100644
--- a/t/51threadtxn.t
+++ b/t/51threadtxn.t
@@ -1,40 +1,46 @@
-use strict;
-use warnings;
-use Test::More;
-use Config;
+BEGIN { do "./t/lib/ANFANG.pm" or die ( $@ || $! ) }
 
-# README: If you set the env var to a number greater than 10,
+# README: If you set the env var to a number greater than 5,
 #   we will use that many children
 
+use Config;
 BEGIN {
-    plan skip_all => 'Your perl does not support ithreads'
-        if !$Config{useithreads} || $] < 5.008;
+  unless ($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;
 
-my ($dsn, $user, $pass) = @ENV{map { "DBICTEST_PG_${_}" } qw/DSN USER PASS/};
-my $num_children = $ENV{DBICTEST_THREAD_STRESS};
+use DBIx::Class::Optional::Dependencies -skip_all_without => 'test_rdbms_pg';
 
-plan skip_all => 'Set $ENV{DBICTEST_THREAD_STRESS} to run this test'
-    unless $num_children;
+use strict;
+use warnings;
 
-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);
+use Test::More;
 
-diag 'It is normal to see a series of "Scalars leaked: ..." messages during this test';
+plan skip_all => 'DBIC does not actively support threads before perl 5.8.5'
+  if "$]" < 5.008005;
 
-if($num_children !~ /^[0-9]+$/ || $num_children < 10) {
-   $num_children = 10;
-}
+use Scalar::Util 'weaken';
+use Time::HiRes qw(time sleep);
+use List::Util 'max';
 
-plan tests => $num_children + 5;
+use DBICTest;
 
-use lib qw(t/lib);
+my $num_children = $ENV{DBICTEST_THREAD_STRESS} || 1;
+if($num_children !~ /^[0-9]+$/ || $num_children < 5) {
+   $num_children = 5;
+}
 
-use_ok('DBICTest::Schema');
+my ($dsn, $user, $pass) = @ENV{map { "DBICTEST_PG_${_}" } qw/DSN USER PASS/};
 
-my $schema = DBICTest::Schema->connection($dsn, $user, $pass, { AutoCommit => 1, RaiseError => 1, PrintError => 0 });
+my $schema = DBICTest::Schema->connect($dsn, $user, $pass, { AutoCommit => 1, RaiseError => 1, PrintError => 0 });
 
 my $parent_rs;
 
@@ -51,25 +57,38 @@ eval {
     $schema->resultset('CD')->create({ title => 'vacation in antarctica part 2', artist => 456, year => 1901 });
 
     $parent_rs = $schema->resultset('CD')->search({ year => 1901 });
-    $parent_rs->next;
+    is ($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;
-        # my $dbh = $schema->storage->dbh;
 
+        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 = $schema->resultset('CD')->search({ year => 1901 });
-            my $row = $parent_rs->next;
+            my $child_rs = $weak_schema->resultset('CD')->search({ year => 1901 });
+            my $row = $weak_parent_rs->next;
             if($row && $row->get_column('artist') =~ /^(?:123|456)$/) {
-                $schema->resultset('CD')->create({ title => "test success $tid", artist => $tid, year => scalar(@children) });
+                $weak_schema->resultset('CD')->create({ title => "test success $tid", artist => $tid, year => scalar(@children) });
             }
         });
-        sleep(3);
+
+        sleep (0.2); # without this many tasty crashes even on latest perls
     };
     die "Thread creation failed: $! $@" if !defined $newthread;
     push(@children, $newthread);
@@ -93,3 +112,10 @@ while(@children) {
 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;