[Click] Problem with Queue element

[Eddie Kohler]

_tail points one past the last element in the queue, as you can tell from this:

>     if (next != _head) {
>         _q[_tail] = p;
>         _tail = next;

So it does no good to stick something in the slot labeled _tail, as you do here:
>              else {
>                 _q[packet_drop]->kill();
>                 for (int i = packet_drop; next_i(i) != _tail; i =
> next_i(i)){
>                         _q[i] = _q[next_i(i)];
>                 }
>                 _q[_tail] = p;
>              }

You want _q[prev_i(_tail)]

E


>     }
> }
> 
> 
> Can anyone see why this problem is occuring????
> 
> Any help or advice would be greatly appreciated.
> 
> Thanks
> 
> 
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