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path: root/src/rabbit_connection_sup.erl
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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 Developers of the Original Code are LShift Ltd,
%%   Cohesive Financial Technologies LLC, and Rabbit Technologies Ltd.
%%
%%   Portions created before 22-Nov-2008 00:00:00 GMT by LShift Ltd,
%%   Cohesive Financial Technologies LLC, or Rabbit Technologies Ltd
%%   are Copyright (C) 2007-2008 LShift Ltd, Cohesive Financial
%%   Technologies LLC, and Rabbit Technologies Ltd.
%%
%%   Portions created by LShift Ltd are Copyright (C) 2007-2010 LShift
%%   Ltd. Portions created by Cohesive Financial Technologies LLC are
%%   Copyright (C) 2007-2010 Cohesive Financial Technologies
%%   LLC. Portions created by Rabbit Technologies Ltd are Copyright
%%   (C) 2007-2010 Rabbit Technologies Ltd.
%%
%%   All Rights Reserved.
%%
%%   Contributor(s): ______________________________________.
%%

-module(rabbit_connection_sup).

-behaviour(supervisor2).

-export([start_link/0, reader/1]).

-export([init/1]).

-include("rabbit.hrl").

%%----------------------------------------------------------------------------

-ifdef(use_specs).

-spec(start_link/0 :: () -> {'ok', pid(), pid()}).
-spec(reader/1 :: (pid()) -> pid()).

-endif.

%%--------------------------------------------------------------------------

start_link() ->
    {ok, SupPid} = supervisor2:start_link(?MODULE, []),
    {ok, ChannelSupSupPid} =
        supervisor2:start_child(
          SupPid,
          {channel_sup_sup, {rabbit_channel_sup_sup, start_link, []},
           intrinsic, infinity, supervisor, [rabbit_channel_sup_sup]}),
    {ok, Collector} =
        supervisor2:start_child(
          SupPid,
          {collector, {rabbit_queue_collector, start_link, []},
           intrinsic, ?MAX_WAIT, worker, [rabbit_queue_collector]}),
    {ok, ReaderPid} =
        supervisor2:start_child(
          SupPid,
          {reader, {rabbit_reader, start_link,
                    [ChannelSupSupPid, Collector, start_heartbeat_fun(SupPid)]},
           intrinsic, ?MAX_WAIT, worker, [rabbit_reader]}),
    {ok, SupPid, ReaderPid}.

reader(Pid) ->
    hd(supervisor2:find_child(Pid, reader)).

%%--------------------------------------------------------------------------

init([]) ->
    {ok, {{one_for_all, 0, 1}, []}}.

start_heartbeat_fun(SupPid) ->
    fun (_Sock, 0) ->
            none;
        (Sock, TimeoutSec) ->
            Parent = self(),
            {ok, Sender} =
                supervisor2:start_child(
                  SupPid, {heartbeat_sender,
                           {rabbit_heartbeat, start_heartbeat_sender,
                            [Parent, Sock, TimeoutSec]},
                           transient, ?MAX_WAIT, worker, [rabbit_heartbeat]}),
            {ok, Receiver} =
                supervisor2:start_child(
                  SupPid, {heartbeat_receiver,
                           {rabbit_heartbeat, start_heartbeat_receiver,
                            [Parent, Sock, TimeoutSec]},
                           transient, ?MAX_WAIT, worker, [rabbit_heartbeat]}),
            {Sender, Receiver}
    end.