2010-09-19 03:39:31 +08:00
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%% @author Lo<4C>c Hoguin <essen@dev-extend.eu>
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%% @copyright 2010 Lo<4C>c Hoguin.
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%% @doc Supervisor for the egs application.
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%%
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%% This file is part of EGS.
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%%
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%% EGS is free software: you can redistribute it and/or modify
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%% it under the terms of the GNU Affero General Public License as
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%% published by the Free Software Foundation, either version 3 of the
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%% License, or (at your option) any later version.
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%%
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%% EGS is distributed in the hope that it will be useful,
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%% but WITHOUT ANY WARRANTY; without even the implied warranty of
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%% MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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%% GNU Affero General Public License for more details.
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%%
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%% You should have received a copy of the GNU Affero General Public License
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%% along with EGS. If not, see <http://www.gnu.org/licenses/>.
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-module(egs_sup).
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-behaviour(supervisor).
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-export([init/1]). %% Supervisor callbacks.
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-export([start_link/0, upgrade/0]). %% Other functions.
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%% @spec start_link() -> ServerRet
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%% @doc API for starting the supervisor.
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start_link() ->
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supervisor:start_link({local, ?MODULE}, ?MODULE, []).
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%% @spec upgrade() -> ok
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%% @doc Add processes if necessary.
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upgrade() ->
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{ok, {_, Specs}} = init([]),
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Old = sets:from_list(
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[Name || {Name, _, _, _} <- supervisor:which_children(?MODULE)]),
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New = sets:from_list([Name || {Name, _, _, _, _, _} <- Specs]),
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Kill = sets:subtract(Old, New),
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sets:fold(fun (Id, ok) ->
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supervisor:terminate_child(?MODULE, Id),
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supervisor:delete_child(?MODULE, Id),
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ok
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end, ok, Kill),
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[supervisor:start_child(?MODULE, Spec) || Spec <- Specs],
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ok.
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%% @spec init([]) -> SupervisorTree
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%% @doc supervisor callback.
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2010-10-07 06:06:02 +08:00
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%% @todo Probably link egs_conf to a supervisor too.
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2010-09-19 03:39:31 +08:00
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init([]) ->
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2010-10-07 06:06:02 +08:00
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egs_conf:start_link(),
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PatchPorts = egs_conf:read(patch_ports),
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LoginPorts = egs_conf:read(login_ports),
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{_ServerIP, GamePort} = egs_conf:read(game_server),
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PatchProcs = [{{egs_patch_server, Port}, {psu_patch, start_link, [Port]}, permanent, 5000, worker, dynamic} || Port <- PatchPorts],
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LoginProcs = [{{egs_login_server, Port}, {egs_login_server, start_link, [Port]}, permanent, 5000, worker, dynamic} || Port <- LoginPorts],
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OtherProcs = [
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2010-10-08 00:11:29 +08:00
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{egs_seasons, {egs_seasons, start_link, []}, permanent, 5000, worker, dynamic},
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2010-10-08 23:30:24 +08:00
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{egs_items_db, {egs_items_db, start_link, []}, permanent, 5000, worker, dynamic},
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2010-10-07 06:06:02 +08:00
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{egs_user_model, {egs_user_model, start_link, []}, permanent, 5000, worker, dynamic},
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{egs_game_server, {egs_game_server, start_link, [GamePort]}, permanent, 5000, worker, dynamic}
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],
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{ok, {{one_for_one, 10, 10}, PatchProcs ++ LoginProcs ++ OtherProcs}}.
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