utils+apps: Fix a bug in ndn::RttEstimator
In the constructor of ndn::RttEstimator, the code tries to set
m_currentEstimatedRtt to m_initialEstimatedRtt using the ConstructSelf()
technique. However, it doesn't take effect at this point since
ndn::RttEstimator hasn't defined GetInstanceTypeId().
According to the manual
(http://www.nsnam.org/docs/manual/html/attributes.html#initialization-order),
"the object and all its derived classes must also implement a virtual
TypeId GetInstanceTypeId (void) const; method. Otherwise the
ObjectBase::ConstructSelf () will not be able to read the attributes".
GetInstanceTypeId() was defined in the original RttEstimator but was
somehow lost during the port to ndnSIM.
closes #40
diff --git a/utils/ndn-rtt-mean-deviation.h b/utils/ndn-rtt-mean-deviation.h
index e8b419c..02d8fac 100644
--- a/utils/ndn-rtt-mean-deviation.h
+++ b/utils/ndn-rtt-mean-deviation.h
@@ -51,6 +51,8 @@
RttMeanDeviation ();
RttMeanDeviation (const RttMeanDeviation&);
+ virtual TypeId GetInstanceTypeId (void) const;
+
void SentSeq (SequenceNumber32 seq, uint32_t size);
Time AckSeq (SequenceNumber32 ackSeq);
void Measurement (Time measure);