[ns] Accessing the Queue from within the MAC layer

[Aurel Mihail Ganga]

Hi,

I am trying to access a function of the Queue from the self-implemented MAC 
protocol, but I keep getting segmentation fault errors.

The important parts of code are:

As part of MAC protocol:
PriQueue* myQueue = dynamic_cast <PriQueue*> (callback_);
return myQueue->getPacketByDst(address);

As part of the Queue:
Packet* PriQueue::getPacketByDst(int dst)
{
printf("Searching the Queue \n");
 if (pq_->head())
{
printf("something\n");
}
}


Any ideas why I get a segmentation error? How should I go about if I want to 
search all packets from the Queue for a specific packet (from the MAC protocol 
layer)? 
Any help appreciated.

Aurel