%% Copyright (c) 2012, Magnus Klaar <klaar@ninenines.eu>
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%% Copyright (c) 2013, Pedram Nimreezi <deadzen@deadzen.com>
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%%
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%% Permission to use, copy, modify, and/or distribute this software for any
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%% purpose with or without fee is hereby granted, provided that the above
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%% copyright notice and this permission notice appear in all copies.
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%%
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%% THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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%% WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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%% MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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%% ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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%% WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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%% ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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%% OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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%% @doc Top level supervisor for goldrush.
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%%
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%% Main supervisor responsible for the {@link gr_counter_sup:start_link/0.
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%% <em>Counter</em>}, {@link gr_param_sup:start_link/0. <em>Param</em>} and
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%% their {@link gr_manager_sup:start_link/0. <em>Manager</em>} supervisors.
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-module(gr_sup).
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-behaviour(supervisor).
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-type startlink_err() :: {'already_started', pid()} | 'shutdown' | term().
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-type startlink_ret() :: {'ok', pid()} | 'ignore' | {'error', startlink_err()}.
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-export([start_link/0]).
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-export([init/1]).
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-define(CHILD(I, Type), {I, {I, start_link, []}, permanent, 5000, Type, [I]}).
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-spec start_link() -> startlink_ret().
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start_link() ->
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supervisor:start_link({local, ?MODULE}, ?MODULE, []).
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-spec init([]) -> {ok, { {one_for_one, 50, 10}, [supervisor:child_spec()]} }.
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init([]) ->
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CounterSup = ?CHILD(gr_counter_sup, supervisor),
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ParamSup = ?CHILD(gr_param_sup, supervisor),
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MgrSup = ?CHILD(gr_manager_sup, supervisor),
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{ok, {{one_for_one, 50, 10}, [CounterSup, ParamSup, MgrSup]}}.
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