Merge pull request #155 from mrkn/fix_without_gvl_for_exception

Fix without_gvl for exceptions occurred in a block

Author: mrkn

ext/pycall/pycall.c

@@ -107,6 +107,10 @@ pycall_without_gvl(VALUE (* func)(VALUE), VALUE arg)
 
   pycall_set_with_gvl();
 
+  if (state) {
+    rb_jump_tag(state);
+  }
+
   return result;
 }
 

test/pycall/test-gvl.rb

@@ -0,0 +1,10 @@
+class PyCallGvlTest < Test::Unit::TestCase
+  def test_exception
+    math = PyCall.import_module("math")
+    assert_raise_message(/factorial\(\) not defined for negative values/) do
+      PyCall.without_gvl do
+        math.factorial(-1)
+      end
+    end
+  end
+end