Folks,
I wrote a poker server in Erlang (link in signature) and I'm learning
Haskell with an eye towards using it with Erlang. Erlang would take
care of the overall control, etc. whereas Haskell would take care of
the rest. I'm stuck with the basics I'm afraid and Haskell hackers
don't seem to be active this weekend ;).
I'm trying to write the poker server in Haskell to compare against my
other implementations, specifically the Erlang one. The server talks
a binary protocol. A packet notifying the player that a game has
started looks like this:
0 1 5 7
+----+-----+-----+
| 24 | GID | Seq |
+----+-----+-----+
I get a message from Erlang once data arrives over TCP and the
message is a {tcp, Socket, Bin} tuple where Bin is binary data. I can
easily extract what I need using Erlang binary pattern matching:
read(<<24, GID:32, Seq:16>>) ->
{24, GID, Seq}.
My code shoots tuples like {24, GID, Seq} back and forth and all is
fine. How would I do this in Haskell, though? Some folks have kindly
supplied me with references to the various binary I/O packages and
some server examples.
I'm wondering, though, if someone would be kind enough to show how a
packet like above could be sent and retrieved using Haskell sockets.
I think this would serve as an excellent example to be posted at the
Haskell Wiki. I also think that Haskell has a lot of interesting
features that could well simplify my poker coding. I just need a
little help to get started.
Thanks, Joel
--
http://wagerlabs.com/tech
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