On Tue, Jul 3, 2018 at 11:48 AM, Guy Harris <[email protected]> wrote:
> On Jul 3, 2018, at 9:24 AM, Peter Wu <[email protected]> wrote:
>
>> Another possibility is to use p_add_proto_data/p_get_proto_data with packet 
>> scope
>
> 1) Presumably you mean pinfo->pool scope - the only scopes p_add_proto_data() 
> allows are wmem_file_scope() and pinfo->pool.
>
> 2) The original purpose of per-packet data was to remember information about 
> a packet that can only easily be determined during a sequential pass through 
> the packets and that is required in order to dissect the packet correctly.  
> That information would thus have to have *file* scope.
>
> Having that mechanism serve two purposes in this fashion seems like a bit of 
> a hack.
>
> Should we, instead, get rid of the scope arguments to those functions and, 
> instead, have separate functions, one of which serves the original purpose, 
> using file scope, and one of which serves this new purpose, using pinfo->pool 
> scope?

That might make it more obvious what is going on when reading the
code, so I think that is a useful idea.

-- 
Regards,
Richard Sharpe
(何以解憂?唯有杜康。--曹操)(传说杜康是酒的发明者)
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