lib/roda.rb in roda-2.22.0 vs lib/roda.rb in roda-2.23.0

@@ -27,9 +27,19 @@
 
     # Make setting value in underlying hash thread safe.
     def []=(key, value)
       @mutex.synchronize{@hash[key] = value}
     end
+
+    private
+
+    # Create a copy of the cache with a separate mutex.
+    def initialize_copy(other)
+      @mutex = Mutex.new
+      other.instance_variable_get(:@mutex).synchronize do
+        @hash = other.instance_variable_get(:@hash).dup
+      end
+    end
   end
 
   # Base class used for Roda requests.  The instance methods for this
   # class are added by Roda::RodaPlugins::Base::RequestMethods, the
   # class methods are added by Roda::RodaPlugins::Base::RequestClassMethods.