synchronize

# File activesupport/lib/active_support/concurrency/load_interlock_aware_monitor.rb, line 20
      def synchronize
        Thread.handle_interrupt(EXCEPTION_NEVER) do
          mon_enter

          begin
            Thread.handle_interrupt(EXCEPTION_IMMEDIATE) do
              yield
            end
          ensure
            mon_exit
          end
        end
      end