%-*-Mode:erlang;coding:utf-8;tab-width:4;c-basic-offset:4;indent-tabs-mode:()-*- % ex: set ft=erlang fenc=utf-8 sts=4 ts=4 sw=4 et nomod: %%% %%%------------------------------------------------------------------------ %%% @doc %%% ==CloudI Application Supervisor== %%% @end %%% %%% BSD LICENSE %%% %%% Copyright (c) 2009-2015, Michael Truog %%% All rights reserved. %%% %%% Redistribution and use in source and binary forms, with or without %%% modification, are permitted provided that the following conditions are met: %%% %%% * Redistributions of source code must retain the above copyright %%% notice, this list of conditions and the following disclaimer. %%% * Redistributions in binary form must reproduce the above copyright %%% notice, this list of conditions and the following disclaimer in %%% the documentation and/or other materials provided with the %%% distribution. %%% * All advertising materials mentioning features or use of this %%% software must display the following acknowledgment: %%% This product includes software developed by Michael Truog %%% * The name of the author may not be used to endorse or promote %%% products derived from this software without specific prior %%% written permission %%% %%% THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND %%% CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, %%% INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES %%% OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE %%% DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR %%% CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, %%% SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, %%% BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR %%% SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS %%% INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, %%% WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING %%% NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE %%% OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH %%% DAMAGE. %%% %%% @author Michael Truog %%% @copyright 2009-2015 Michael Truog %%% @version 1.5.1 {@date} {@time} %%%------------------------------------------------------------------------ -module(cloudi_core_i_sup). -author('mjtruog [at] gmail (dot) com'). -behaviour(supervisor). %% external interface -export([start_link/1]). %% supervisor callbacks -export([init/1]). -include("cloudi_core_i_configuration.hrl"). -include("cloudi_core_i_constants.hrl"). %%%------------------------------------------------------------------------ %%% External interface functions %%%------------------------------------------------------------------------ %%------------------------------------------------------------------------- %% @doc %% ===Start the CloudI application supervisor.=== %% @end %%------------------------------------------------------------------------- -spec start_link(Config :: #config{}) -> {'ok', pid()} | {'error', any()}. start_link(Config) when is_record(Config, config) -> case supervisor:start_link(?MODULE, [Config]) of {ok, Pid} = Success -> case cloudi_core_i_configurator:configure() of ok -> Success; {error, _} = Error -> erlang:exit(Pid, configure_failed), Error end; {error, _} = Error -> Error end. %%%------------------------------------------------------------------------ %%% Callback functions from supervisor %%%------------------------------------------------------------------------ -ifdef(CLOUDI_CORE_STANDALONE). -define(CHILDSPECS, [child_specification(cloudi_core_i_logger_sup, Config), child_specification(cloudi_core_i_logger, Config), child_specification(cloudi_core_i_nodes, Config), child_specification(cloudi_core_i_services_monitor), child_specification(cloudi_core_i_services_internal_sup), child_specification(cloudi_core_i_configurator, Config), child_specification(cloudi_core_i_services_internal_reload)]). -define(CHECK, (is_tuple(child_specification(cloudi_core_i_services_external_sup)) andalso is_tuple(child_specification(cloudi_core_i_os_spawn_pool)))). -else. -define(CHILDSPECS, [child_specification(cloudi_core_i_logger_sup, Config), child_specification(cloudi_core_i_logger, Config), child_specification(cloudi_core_i_nodes, Config), child_specification(cloudi_core_i_services_monitor), child_specification(cloudi_core_i_os_spawn_pool), child_specification(cloudi_core_i_services_external_sup), child_specification(cloudi_core_i_services_internal_sup), child_specification(cloudi_core_i_configurator, Config), child_specification(cloudi_core_i_services_internal_reload)]). -define(CHECK, true). -endif. init([Config]) when is_record(Config, config) -> true = ?CHECK, MaxRestarts = 0, MaxTime = 1, {ok, {{one_for_all, MaxRestarts, MaxTime}, ?CHILDSPECS}}. %%%------------------------------------------------------------------------ %%% Private functions %%%------------------------------------------------------------------------ child_specification(cloudi_core_i_logger_sup, Config) -> {cloudi_core_i_logger_sup, {cloudi_core_i_logger_sup, start_link, [Config]}, permanent, infinity, supervisor, [cloudi_core_i_logger_sup]}; child_specification(cloudi_core_i_logger, Config) -> Shutdown = 2000, % milliseconds {cloudi_core_i_logger, {cloudi_core_i_logger, start_link, [Config]}, permanent, Shutdown, worker, [cloudi_core_i_logger]}; child_specification(cloudi_core_i_nodes, Config) -> Shutdown = 2000, % milliseconds {cloudi_core_i_nodes, {cloudi_core_i_nodes, start_link, [Config]}, permanent, Shutdown, worker, [cloudi_core_i_nodes]}; child_specification(cloudi_core_i_configurator, Config) -> Shutdown = 2000, % milliseconds {cloudi_core_i_configurator, {cloudi_core_i_configurator, start_link, [Config]}, permanent, Shutdown, worker, [cloudi_core_i_configurator]}. child_specification(cloudi_core_i_services_monitor) -> Shutdown = 2000, % milliseconds {cloudi_core_i_services_monitor, {cloudi_core_i_services_monitor, start_link, []}, permanent, Shutdown, worker, [cloudi_core_i_services_monitor]}; child_specification(cloudi_core_i_services_internal_reload) -> Shutdown = 2000, % milliseconds {cloudi_core_i_services_internal_reload, {cloudi_core_i_services_internal_reload, start_link, []}, permanent, Shutdown, worker, [cloudi_core_i_services_internal_reload]}; child_specification(cloudi_core_i_services_internal_sup) -> {cloudi_core_i_services_internal_sup, {cloudi_core_i_services_internal_sup, start_link, []}, permanent, infinity, supervisor, [cloudi_core_i_services_internal_sup]}; child_specification(cloudi_core_i_os_spawn_pool) -> Shutdown = 2000, % milliseconds {cloudi_core_i_os_spawn_pool, {supool_sup, start_link, [cloudi_core_i_os_spawn, os_process_count(), {undefined, {cloudi_core_i_os_spawn, start_link, []}, permanent, Shutdown, worker, [cloudi_core_i_os_spawn]}, []]}, permanent, infinity, supervisor, [supool_sup]}; child_specification(cloudi_core_i_services_external_sup) -> {cloudi_core_i_services_external_sup, {cloudi_core_i_services_external_sup, start_link, []}, permanent, infinity, supervisor, [cloudi_core_i_services_external_sup]}. % determine the number of cloudi_core_i_os_spawn child processes within the % supool_sup, referenced by the locally registered name (of the pool): % 'cloudi_core_i_os_spawn' %os_process_count() -> % 1. os_process_count() -> erlang:system_info(schedulers).