[Click] Help with Click HashMap

[Swati Sinha Deb]

Hi,

I am trying to implement HashMap of click. The key is of unsigned. I have 
used user annotation to set the key and the value in the hashMap is of 
WriatablePacket*. The problem is that I am not able to retrieve the packet 
in my callback function. It seems that packets are getting destroyed.

Can you please have a look at my sample code. Any advice would be highly 
appreciated. Thanks.

typedef HashMap <unsigned, WritablePacket *> PktMap;

Inline Packet * PktHandler::smaction (Packet *p_in)
{
  WritablePacket *p = p_in->uniqueify();
  //set the USER ANNO at 0 byte
  p->set_user_anno_u(0, counter);
  uint32_t _pktid = p->user_anno_u(0);
 _pkt_map.insert(_pktid, p);
  .....................
  return p;
}

void PktHandler::callback(uint32_t pktid_, int token_)
{
    WritablePacket *p =  _pkt_map.find(pktid_);
    //here I am not able to read the packet p.
    .....................
}

regards,
Swati