Disable copy-contructors in flow-monitor ABCs

src/contrib/flow-monitor/flow-classifier.h

@@ -41,8 +41,12 @@ typedef uint32_t FlowPacketId;
 /// particular flow capture method or classification system.
 class FlowClassifier : public SimpleRefCount<FlowClassifier>
 {
+private:
   FlowId m_lastNewFlowId;
 
+  FlowClassifier (FlowClassifier const &);
+  FlowClassifier& operator= (FlowClassifier const &);
+
 public:
 
   FlowClassifier ();

src/contrib/flow-monitor/flow-probe.h

@@ -38,6 +38,10 @@ class FlowMonitor;
 /// regarding only the packets that pass through that probe.
 class FlowProbe : public SimpleRefCount<FlowProbe>
 {
+private:
+  FlowProbe (FlowProbe const &);
+  FlowProbe& operator= (FlowProbe const &);
+  
 protected:
   
   FlowProbe (Ptr<FlowMonitor> flowMonitor);