1 files changed, 46 insertions, 0 deletions
diff --git a/activesupport/lib/active_support/cache/synchronized_memory_store.rb b/activesupport/lib/active_support/cache/synchronized_memory_store.rb
new file mode 100644
index 0000000000..d2ff28768f
--- /dev/null
+++ b/activesupport/lib/active_support/cache/synchronized_memory_store.rb
@@ -0,0 +1,46 @@
+module ActiveSupport
+  module Cache
+    class SynchronizedMemoryStore < MemoryStore
+      def initialize
+        super
+        @guard = Monitor.new
+      end
+
+      def fetch(key, options = {})
+        @guard.synchronize { super }
+      end
+
+      def read(name, options = nil)
+        @guard.synchronize { super }
+      end
+
+      def write(name, value, options = nil)
+        @guard.synchronize { super }
+      end
+
+      def delete(name, options = nil)
+        @guard.synchronize { super }
+      end
+
+      def delete_matched(matcher, options = nil)
+        @guard.synchronize { super }
+      end
+
+      def exist?(name,options = nil)
+        @guard.synchronize { super }
+      end
+
+      def increment(key, amount = 1)
+        @guard.synchronize { super }
+      end
+
+      def decrement(key, amount = 1)
+        @guard.synchronize { super }
+      end
+
+      def clear
+        @guard.synchronize { super }
+      end
+    end
+  end
+end