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%% Create an AF_UNIX socket and accept connections. On connect, spawn
%% a p11p_server process.
%% FIXME: Run _one_ socket per instance of this server!
-module(p11p_server).
-behaviour(gen_server).
%% API.
-export([start_link/1]).
%% Genserver callbacks.
-export([init/1, handle_call/3, handle_cast/2, handle_info/2, terminate/2,
code_change/3]).
%% Records and types.
-include("p11p_defs.hrl").
-record(state, {socket :: gen_tcp:socket()}).
%% API.
-spec start_link(gen_tcp:socket()) -> {ok, pid()} | {error, term()}.
start_link(Socket) ->
gen_server:start_link(?MODULE, Socket, []).
%% Genserver callbacks.
init(Socket) ->
gen_server:cast(self(), accept), % Perform accept in gen-server loop.
{ok, #state{socket = Socket}}.
handle_call(Request, _From, State) ->
lager:debug("Unhandled call: ~p~n", [Request]),
{reply, unhandled, State}.
handle_cast(accept, State = #state{socket = ListenSocket}) ->
{ok, Sock} = gen_tcp:accept(ListenSocket),
%% TODO: authz
lager:debug("new connection accepted: ~p", [Sock]),
p11p_server_sup:start_server(), % New acceptor.
{noreply, State#state{socket = Sock}};
handle_cast(Request, State) ->
lager:debug("Unhandled cast: ~p~n", [Request]),
{noreply, State}.
handle_info({tcp, _Socket, Data}, State) ->
lager:debug("~p: received: ~s", [self(), Data]),
{noreply, State};
handle_info(Info, State) ->
lager:debug("Unhandled info: ~p~n", [Info]),
{noreply, State}.
terminate(_Reason, #state{socket = Socket}) ->
gen_tcp:close(Socket), % FIXME: correct?
ok.
code_change(_OldVersion, State, _Extra) ->
{ok, State}.
%% Private functions.
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