--- a
+++ b/src/policies/DIF/RMT/Monitor/RMTQMonitorBase.h
@@ -0,0 +1,100 @@
+//
+// Copyright Š 2014 PRISTINE Consortium (http://ict-pristine.eu)
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Lesser General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public License
+// along with this program. If not, see http://www.gnu.org/licenses/.
+//
+
+#ifndef RMTQMONITORBASE_H_
+#define RMTQMONITORBASE_H_
+
+#include <omnetpp.h>
+#include "RMTSchedulingBase.h"
+#include "RMTQueue.h"
+#include "PDU.h"
+
+class RMTSchedulingBase; /* FIXME: circular dependency */
+
+/**
+ * Noop base class for the RMT monitoring policy.
+ * This policy responds to various events happening inside RMT, usually by
+ * modifying values used by the scheduling policy.
+ */
+class RMTQMonitorBase : public cSimpleModule
+{
+ public:
+
+ /**
+ * A hook method invoked after a PDU arrives into a queue.
+ *
+ * @param queue pointer to the queue
+ */
+ virtual void onMessageArrival(RMTQueue* queue);
+
+ /**
+ * A hook method invoked after a PDU gets released from a queue & sent.
+ *
+ * @param queue pointer to the queue
+ */
+ virtual void onMessageDeparture(RMTQueue* queue);
+
+ /**
+ * A hook method invoked after a PDU gets dropped from a queue.
+ * Note: the PDU object is discarded after invocation of this method.
+ *
+ * @param queue pointer to the queue
+ * @param pdu PDU being dropped
+ */
+ virtual void onMessageDrop(RMTQueue* queue, const cMessage* pdu);
+
+ /**
+ * A hook method invoked after a queue is created.
+ *
+ * @param queue pointer to the queue
+ */
+ virtual void postQueueCreation(RMTQueue* queue);
+
+ /**
+ * A hook method invoked before a queue is removed.
+ *
+ * @param queue pointer to the queue
+ */
+ virtual void preQueueRemoval(RMTQueue* queue);
+
+ protected:
+
+ /**
+ * A hook method invoked after the initial setup of policy module.
+ */
+ virtual void onPolicyInit();
+
+ /**
+ * Handler for OMNeT++ module messages (probably not of much use here).
+ */
+ virtual void handleMessage(cMessage* msg);
+
+ /**
+ * Pointer to a scheduling policy module.
+ */
+ RMTSchedulingBase* schedPolicy;
+
+ private:
+
+ /**
+ * Module initialization routine setting up parameters for GUI.
+ * Inherited policies should be using onPolicyInit() instead.
+ */
+ virtual void initialize();
+};
+
+#endif /* RMTQMONITORBASE_H_ */