[Python-Dev] _socket efficiencies ideas
"Martin v. L÷wis"
Wed, 09 Apr 2003 20:49:54 +0200
Marcus Mendenhall wrote:
> The getsockaddr call uses them (actually the correct name for one of the
> flags is AI_NUMERICHOST, not AI_NUMERIC as I originally stated), and its
> part of the BSD sockets library, which is basically what the python
> socketmodule wraps.
More importantly, it is part of RFC 2553, which Python uses; it is also
part of Winsock2.
> I guess intercepting all numeric is OK, it is just less efficient (since
> it requires a trial parsing of an address, which is wasted if it is not
> all numeric), and because it is so easy to implement <numeric>.
But isn't the same trial parsing needed to determine presence of the
"<numeric>" flag? The trial parsing Guido proposes usually stops with
the first letter in a non-numeric address, and accesses up to 16 letters
for a numeric address.