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%% The contents of this file are subject to the Mozilla Public License
%% Version 1.1 (the "License"); you may not use this file except in
%% compliance with the License. You may obtain a copy of the License
%% at http://www.mozilla.org/MPL/
%%
%% Software distributed under the License is distributed on an "AS IS"
%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
%% the License for the specific language governing rights and
%% limitations under the License.
%%
%% The Original Code is RabbitMQ.
%%
%% The Initial Developer of the Original Code is GoPivotal, Inc.
%% Copyright (c) 2007-2014 GoPivotal, Inc. All rights reserved.
%%
-module(tcp_listener_sup).
-behaviour(supervisor).
-export([start_link/7, start_link/8]).
-export([init/1]).
%%----------------------------------------------------------------------------
-ifdef(use_specs).
-type(mfargs() :: {atom(), atom(), [any()]}).
-spec(start_link/7 ::
(inet:ip_address(), inet:port_number(), [gen_tcp:listen_option()],
mfargs(), mfargs(), mfargs(), string()) ->
rabbit_types:ok_pid_or_error()).
-spec(start_link/8 ::
(inet:ip_address(), inet:port_number(), [gen_tcp:listen_option()],
mfargs(), mfargs(), mfargs(), integer(), string()) ->
rabbit_types:ok_pid_or_error()).
-endif.
%%----------------------------------------------------------------------------
start_link(IPAddress, Port, SocketOpts, OnStartup, OnShutdown,
AcceptCallback, Label) ->
start_link(IPAddress, Port, SocketOpts, OnStartup, OnShutdown,
AcceptCallback, 1, Label).
start_link(IPAddress, Port, SocketOpts, OnStartup, OnShutdown,
AcceptCallback, ConcurrentAcceptorCount, Label) ->
supervisor:start_link(
?MODULE, {IPAddress, Port, SocketOpts, OnStartup, OnShutdown,
AcceptCallback, ConcurrentAcceptorCount, Label}).
init({IPAddress, Port, SocketOpts, OnStartup, OnShutdown,
AcceptCallback, ConcurrentAcceptorCount, Label}) ->
%% This is gross. The tcp_listener needs to know about the
%% tcp_acceptor_sup, and the only way I can think of accomplishing
%% that without jumping through hoops is to register the
%% tcp_acceptor_sup.
Name = rabbit_misc:tcp_name(tcp_acceptor_sup, IPAddress, Port),
{ok, {{one_for_all, 10, 10},
[{tcp_acceptor_sup, {tcp_acceptor_sup, start_link,
[Name, AcceptCallback]},
transient, infinity, supervisor, [tcp_acceptor_sup]},
{tcp_listener, {tcp_listener, start_link,
[IPAddress, Port, SocketOpts,
ConcurrentAcceptorCount, Name,
OnStartup, OnShutdown, Label]},
transient, 16#ffffffff, worker, [tcp_listener]}]}}.
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