-module(tda). -export([start/0, client/1, stop/0]). -export([ext/0, co/0]). -define(TIMEOUT, 300000). -define(CONNECT_TIMEOUT, 3000). -define(HOST, "192.168.240.20"). -define(PORT, 33333). start() -> register(tdaPid, spawn(?MODULE, client, [{dial, ?HOST, ?PORT}])). stop() -> tdaPid ! {logout}. ext() -> tdaPid ! {ext}. co() -> tdaPid ! {co}. client({dial, Host, Port}) -> io:format("Dial ~p:~p~n", [Host, Port]), Conn = gen_tcp:connect(Host, Port, [binary, {active, once}, {packet, 2}], ?CONNECT_TIMEOUT), client(Conn); client({ok, Sock}) -> io:format("Connected~n", []), tdaPid ! {login}, loop(Sock); client({error, Reason}) -> io:format("Error: ~p~n", [Reason]), {error, Reason}. loop(Sock) -> inet:setopts(Sock, [{active, once}]), io:format("Loop~n", []), receive {login} -> io:format("Login~n", []), {ok, Hello} = acse:associate(), gen_tcp:send(Sock, Hello), loop(Sock); {logout} -> io:format("Logout~n", []), {ok, Bye} = acse:release(), gen_tcp:send(Sock, Bye), loop(Sock); {ext} -> io:format("Request Ext lines~n", []), {ok, Rq} = rose:invoke({present, 2}, {local, 51}, csta:ext_lines()), io:format("Send: ~p~n", [Rq]), gen_tcp:send(Sock, Rq), loop(Sock); {co} -> io:format("Request CO lines~n", []), {ok, Rq} = rose:invoke({present, 2}, {local, 51}, csta:co_lines()), io:format("Send: ~p~n", [Rq]), gen_tcp:send(Sock, Rq), loop(Sock); {tcp, Sock, Msg} -> io:format("Reply ~p~n", [Msg]), case decode(Sock, Msg) of ok -> loop(Sock); error -> gen_tcp:close(Sock), error end; {tcp_closed, _} -> io:format("Connection closed~n", []), closed after ?TIMEOUT -> gen_tcp:close(Sock), timeout end. decode(Sock, Msg) -> case dispatch(Msg) of rose -> {ok, Rose} = rose:decode(Msg), io:format("ROSE> ~p~n", [Rose]), case rose:dispatch(Rose) of {ok, Result} -> gen_tcp:send(Sock, Result); {result, Msg} -> io:format("Result: ~p~n", [Msg]), ok; {ok} -> ok end; acse -> {ok, Acse} = acse:decode(Msg), io:format("ACSE> ~p~n", [Acse]), acse:accepted(Acse) end. dispatch(<>) -> case Head of 96 -> acse; % aarq 97 -> acse; % aare 98 -> acse; % rlrq 99 -> acse; % rlre 100 -> acse; % abrt 161 -> rose; % invoke 162 -> rose; % returnResult 163 -> rose; % returnError 164 -> rose % reject end.