Linked List Implemented for getting the list

pragma solidity ^0.4.21;

contract Voting {
    
  event AddEntry(bytes32 head,uint number,string name,bytes32 next);
  uint length = 0;
  
  struct Object {
    bytes32 next;
    uint userId;
    string name;
    uint gameId;
    int  qty;
  }

  bytes32  head;
  bytes32  current; 
  mapping (bytes32 => Object) bbjects;

  function addEntry(uint _userId, string _name, uint _gameId, int _qty) public returns (bool) {
    Object memory object = Object(head,_userId, _name, _gameId, _qty);
    bytes32 id = keccak256(object.userId, object.name, object.gameId, object.qty, now, length);
    bbjects[id] = object;
    head = id;
    length = length+1;    
  }
  
    //needed for external contract access to struct
  function getEntry(bytes32 _id) public view returns (bytes32, uint, string, uint, int) {
        return (bbjects[_id].next, bbjects[_id].userId, bbjects[_id].name, bbjects[_id].gameId, bbjects[_id].qty);
  }
  
 function getCurrentHead() public view returns(bytes32){
        return head;
 }

  
  event LogRecord(string mssg, string name, uint userid, uint gameId, int qty );
  
  //Its not gas efficient
  function getAllRecords() public { 
    current = head;           
    while( current != 0 ) {     
      emit LogRecord("This is new current value : ", bbjects[current].name, bbjects[current].userId, bbjects[current].gameId, bbjects[current].qty);
      current = bbjects[current].next;
    }   
  }

}