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%%
%% %CopyrightBegin%
%%
%% Copyright Ericsson AB 2010-2011. All Rights Reserved.
%%
%% 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 online 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.
%%
%% %CopyrightEnd%
%%
%%
%% Top supervisor for transport processes.
%%
-module(diameter_transport_sup).
-behaviour(supervisor).
-export([start_link/0, %% supervisor start
start_child/2]).
%% supervisor callback
-export([init/1]).
%% ---------------------------------------------------------------------------
%% start_link/0
%%
%% Start the transport top supervisor. This is started as a child at
%% at application start, from diameter_sup.erl. Protocol-specific
%% supervisors are started as children of this supervisor dynamically
%% by calling start_child/2. (Eg. diameter_tcp_sup:start/0, which
%% is called from diameter_tcp:start/3 to start supervisors the
%% first time a TCP transport process is started.)
start_link() ->
SupName = {local, ?MODULE},
supervisor:start_link(SupName, ?MODULE, []).
%% start_child/2
%%
%% Start a protocol-specific supervisor under the top supervisor.
start_child(Name, Module) ->
Spec = {Name,
{Module, start_link, [Name]},
permanent,
1000,
supervisor,
[Module]},
supervisor:start_child(?MODULE, Spec).
%% ---------------------------------------------------------------------------
%% Top supervisor callback.
init([]) ->
Flags = {one_for_one, 0, 1},
Workers = [], %% Each protocol starts its supervisor on demand.
{ok, {Flags, Workers}}.
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