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%%%
%%% Copyright 2012 © Nicolas Niclausse
%%%
%%% Author : Nicolas Niclausse <nicolas.nniclausse@niclux.org>
%%% Created: 7 sep 2012 by Nicolas Niclausse <nicolas.nniclausse@niclux.org>
%%%
%%% This program is free software; you can redistribute it and/or modify
%%% it under the terms of the GNU General Public License as published by
%%% the Free Software Foundation; either version 2 of the License, or
%%% (at your option) any later version.
%%%
%%% This program is distributed in the hope that it will be useful,
%%% but WITHOUT ANY WARRANTY; without even the implied warranty of
%%% MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
%%% GNU General Public License for more details.
%%%
%%% You should have received a copy of the GNU General Public License
%%% along with this program; if not, write to the Free Software
%%% Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
%%%
%%% In addition, as a special exception, you have the permission to
%%% link the code of this program with any library released under
%%% the EPL license and distribute linked combinations including
%%% the two; the MPL (Mozilla Public License), which EPL (Erlang
%%% Public License) is based on, is included in this exception.
-module(ts_udp).
-export([ connect/4, send/3, close/1, set_opts/2, protocol_options/1, normalize_incomming_data/2 ]).
-behaviour(gen_ts_transport).
-include("ts_profile.hrl").
-include("ts_config.hrl").
protocol_options(#proto_opts{udp_rcv_size=Rcv, udp_snd_size=Snd}) ->
[binary,
{active, once},
{recbuf, Rcv},
{sndbuf, Snd}
].
%% -> {ok, Socket}
connect(_Host, _Port, Opts, _Timeout) ->
gen_udp:open(0, Opts).
%% send/3 -> ok | {error, Reason}
send(Socket, Data, [{host, Host}, {port, Port}]) ->
gen_udp:send(Socket, Host,Port, Data).
close(none) -> ok;
close(Socket) ->
gen_udp:close(Socket).
% set_opts/2 -> socket()
set_opts(none, _Opts) -> none;
set_opts(Socket, Opts) ->
inet:setopts(Socket, Opts),
Socket.
normalize_incomming_data(Socket, {udp, Socket,_IP,_InPortNo, Data}) ->
?DebugF("UDP packet received: size=~p ~n",[size(Data)]),
{gen_ts_transport, Socket, Data};
normalize_incomming_data(_Socket, X) ->
X. %%Other, non gen_udp packet.
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