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%% ``The contents of this file are subject to the Erlang Public License,
%% Version 1.1, (the "License"); you may not use this file except in
%% compliance with the License. You should have received a copy of the
%% Erlang Public License along with this software. If not, it can be
%% retrieved via the world wide web at http://www.erlang.org/.
%%
%% 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 Initial Developer of the Original Code is Ericsson Utvecklings AB.
%% Portions created by Ericsson are Copyright 1999, Ericsson Utvecklings
%% AB. All Rights Reserved.''
%%
%% $Id$
%%
%%----------------------------------------------------------------------
%% Purpose: The top supervisor for tftp hangs under inets_sup.
%%----------------------------------------------------------------------
-module(tftp_sup).
-behaviour(supervisor).
%% API
-export([start_link/1]).
-export([start_child/1]).
%% Supervisor callback
-export([init/1]).
%%%=========================================================================
%%% API
%%%=========================================================================
start_link(TftpServices) ->
supervisor:start_link({local, ?MODULE}, ?MODULE, [TftpServices]).
start_child(Args) ->
supervisor:start_child(?MODULE, Args).
%%%=========================================================================
%%% Supervisor callback
%%%=========================================================================
init([Services]) when is_list(Services) ->
RestartStrategy = one_for_one,
MaxR = 10,
MaxT = 3600,
KillAfter = timer:seconds(3),
Children = [worker_spec(KillAfter, Options) || {tftpd, Options} <- Services],
{ok, {{RestartStrategy, MaxR, MaxT}, Children}}.
%%%=========================================================================
%%% Internal functions
%%%=========================================================================
worker_spec(KillAfter, Options) ->
Modules = [proc_lib, tftp, tftp_engine],
KA = supervisor_timeout(KillAfter),
Name = unique_name(Options),
{Name, {tftp, start, [Options]}, permanent, KA, worker, Modules}.
unique_name(Options) ->
case lists:keysearch(port, 1, Options) of
{value, {_, Port}} when is_integer(Port), Port > 0 ->
{tftpd, Port};
_ ->
{tftpd, erlang:now()}
end.
%% supervisor_spec(Name) ->
%% {Name, {Name, start, []}, permanent, infinity, supervisor,
%% [Name, supervisor]}.
-ifdef(debug_shutdown).
supervisor_timeout(_KillAfter) -> timer:hours(24).
-else.
supervisor_timeout(KillAfter) -> KillAfter.
-endif.
|
