1 files changed, 25 insertions, 0 deletions
diff --git a/jni/ruby/lib/drb/observer.rb b/jni/ruby/lib/drb/observer.rb
new file mode 100644
index 0000000..cab9ebc
--- /dev/null
+++ b/jni/ruby/lib/drb/observer.rb
@@ -0,0 +1,25 @@
+require 'observer'
+
+module DRb
+  # The Observable module extended to DRb.  See Observable for details.
+  module DRbObservable
+    include Observable
+
+    # Notifies observers of a change in state.  See also
+    # Observable#notify_observers
+    def notify_observers(*arg)
+      if defined? @observer_state and @observer_state
+        if defined? @observer_peers
+          @observer_peers.each do |observer, method|
+            begin
+              observer.send(method, *arg)
+            rescue
+              delete_observer(observer)
+            end
+          end
+        end
+        @observer_state = false
+      end
+    end
+  end
+end