[ndnSIM] Access to the queue inside OnData() in forwarding-strategy

[Alex Afanasyev]

> On Feb 18, 2016, at 8:42 AM, Ayush Agarwal <ayush0071 at gmail.com> wrote:
> 
> Hello everyone,
> 
> I am using the following code to get hold of the queue object inside the forwarding strategy, OnData(....) function.
> 
> Ptr<NetDeviceFace> netDeviceFace = DynamicCast<NetDeviceFace> (inFace);
> if (netDeviceFace == NULL) {  }
> Ptr<NetDevice> nd = netDeviceFace->GetNetDevice ();
> if (nd == NULL) {  }
> PointerValue txQueueAttribute;
> nd->GetAttribute ("TxQueue", txQueueAttribute);
> Ptr<ns3::Queue> txQueue = txQueueAttribute.Get<ns3::Queue> ();
> if (txQueue == 0) {    }
> 
> But I am getting a segmentation fault SIGSEV error while fetching the NetDevice object and the following errors for accessing queue.
> 
> ../src/ndnSIM/model/fw/ndn-forwarding-strategy.cc:238:3: error: ‘PointerValue’ was not declared in this scope
>     PointerValue txQueueAttribute;
>    ^
> ../src/ndnSIM/model/fw/ndn-forwarding-strategy.cc:239:32: error: ‘txQueueAttribute’ was not declared in this scope
>    nd->GetAttribute ("TxQueue", txQueueAttribute);
>                                 ^
> ../src/ndnSIM/model/fw/ndn-forwarding-strategy.cc:243:50: error: expected primary-expression before ‘>’ token
>    Ptr<Queue> txQueue = txQueueAttribute.Get<Queue> ();
>                                                   ^
> ../src/ndnSIM/model/fw/ndn-forwarding-strategy.cc:243:53: error: expected primary-expression before ‘)’ token
>    Ptr<Queue> txQueue = txQueueAttribute.Get<Queue> ();
> 
> 
> Can you please point me out where I am going wrong.

Hi Ayush,

Sorry for the delayed response.  I'm guessing that you have already solved the compilation problem?  Just in case, it is just a matter of adding proper includes (I think <ns3/pointer.h>, <ns3/queue.h>)

---
Alex

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