Centralize handling of refcount in DBIC::_Util

[dbsrgits/DBIx-Class.git] / lib / DBIx / Class / _Util.pm

diff --git a/lib/DBIx/Class/_Util.pm b/lib/DBIx/Class/_Util.pm
index 5b3a427..0afe2ea 100644 (file)
--- a/lib/DBIx/Class/_Util.pm
+++ b/lib/DBIx/Class/_Util.pm
@@ -6,11 +6,54 @@ use strict;
 
 use constant SPURIOUS_VERSION_CHECK_WARNINGS => ($] < 5.010 ? 1 : 0);
 
+BEGIN {
+  package # hide from pause
+    DBIx::Class::_ENV_;
+
+  use Config;
+
+  use constant {
+
+    # but of course
+    BROKEN_FORK => ($^O eq 'MSWin32') ? 1 : 0,
+
+    HAS_ITHREADS => $Config{useithreads} ? 1 : 0,
+
+    # ::Runmode would only be loaded by DBICTest, which in turn implies t/
+    DBICTEST => eval { DBICTest::RunMode->is_author } ? 1 : 0,
+
+    # During 5.13 dev cycle HELEMs started to leak on copy
+    PEEPEENESS =>
+      # request for all tests would force "non-leaky" illusion and vice-versa
+      defined $ENV{DBICTEST_ALL_LEAKS}                                              ? !$ENV{DBICTEST_ALL_LEAKS}
+      # otherwise confess that this perl is busted ONLY on smokers
+    : eval { DBICTest::RunMode->is_smoker } && ($] >= 5.013005 and $] <= 5.013006)  ? 1
+      # otherwise we are good
+                                                                                    : 0
+    ,
+
+    ASSERT_NO_INTERNAL_WANTARRAY => $ENV{DBIC_ASSERT_NO_INTERNAL_WANTARRAY} ? 1 : 0,
+
+    IV_SIZE => $Config{ivsize},
+
+    OS_NAME => $^O,
+  };
+
+  if ($] < 5.009_005) {
+    require MRO::Compat;
+    constant->import( OLD_MRO => 1 );
+  }
+  else {
+    require mro;
+    constant->import( OLD_MRO => 0 );
+  }
+}
+
 use Carp;
 use Scalar::Util qw(refaddr weaken);
 
 use base 'Exporter';
-our @EXPORT_OK = qw(sigwarn_silencer modver_gt_or_eq fail_on_internal_wantarray);
+our @EXPORT_OK = qw(sigwarn_silencer modver_gt_or_eq fail_on_internal_wantarray refcount);
 
 sub sigwarn_silencer {
   my $pattern = shift;
@@ -22,6 +65,15 @@ sub sigwarn_silencer {
   return sub { &$orig_sig_warn unless $_[0] =~ $pattern };
 }
 
+sub refcount {
+  croak "Expecting a reference" if ! length ref $_[0];
+
+  require B;
+  # No tempvars - must operate on $_[0], otherwise the pad
+  # will count as an extra ref
+  B::svref_2object($_[0])->REFCNT;
+}
+
 sub modver_gt_or_eq {
   my ($mod, $ver) = @_;