diff --git a/include/ccnx-closure.h b/include/ccnx-closure.h
new file mode 100644
index 0000000..54306d6
--- /dev/null
+++ b/include/ccnx-closure.h
@@ -0,0 +1,41 @@
+#ifndef CCNX_CLOSURE_H
+#define CCNX_CLOSURE_H
+
+#include "ccnx-common.h"
+
+using namespace std;
+
+namespace Ccnx {
+
+class Closure 
+{
+public:
+  typedef boost::function<void (const string &, const Bytes &)> DataCallback;
+
+  typedef enum
+  {
+    RESULT_OK,
+    RESULT_REEXPRESS
+  } TimeoutCallbackReturnValue;
+
+  typedef boost::function<TimeoutCallbackReturnValue (const string &)> TimeoutCallback;
+
+  Closure(int retry, const DataCallback &dataCallback, const TimeoutCallback &timeoutCallback);
+  Closure(const Closure &other);
+  int getRetry() {return m_retry;}
+  void decRetry() { m_retry--;}
+  virtual ~Closure();
+  virtual void 
+  runDataCallback(const string &name, const Bytes &content);
+  virtual TimeoutCallbackReturnValue 
+  runTimeoutCallback(const string &interest);
+
+protected:
+  int m_retry;
+  TimeoutCallback *m_timeoutCallback;
+  DataCallback *m_dataCallback;  
+};
+
+} // Ccnx
+
+#endif