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%%
%% %CopyrightBegin%
%%
%% Copyright Ericsson AB 2001-2009. 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%
%%
%%
%%----------------------------------------------------------------------
%% Purpose: The supervisor for acceptor processes in the http server,
%% hangs under the httpd_instance_sup_<Addr>_<Port> supervisor.
%%----------------------------------------------------------------------
-module(httpd_acceptor_sup).
-behaviour(supervisor).
%% API
-export([start_link/2, start_acceptor/5, start_acceptor/6, stop_acceptor/2]).
%% Supervisor callback
-export([init/1]).
%%%=========================================================================
%%% API
%%%=========================================================================
start_link(Addr, Port) ->
SupName = make_name(Addr, Port),
supervisor:start_link({local, SupName}, ?MODULE, []).
%%----------------------------------------------------------------------
%% Function: [start|stop]_acceptor/5
%% Description: Starts/stops an [auth | security] worker (child) process
%%----------------------------------------------------------------------
start_acceptor(SocketType, Addr, Port, ConfigDb, AcceptTimeout) ->
start_worker(httpd_acceptor, SocketType, Addr, Port,
ConfigDb, AcceptTimeout, self(), []).
start_acceptor(SocketType, Addr, Port, ConfigDb, AcceptTimeout, ListenSocket) ->
start_worker(httpd_acceptor, SocketType, Addr, Port,
ConfigDb, AcceptTimeout, ListenSocket, self(), []).
stop_acceptor(Addr, Port) ->
stop_worker(httpd_acceptor, Addr, Port).
%%%=========================================================================
%%% Supervisor callback
%%%=========================================================================
init(_) ->
Flags = {one_for_one, 500, 100},
Workers = [],
{ok, {Flags, Workers}}.
%%%=========================================================================
%%% Internal functions
%%%=========================================================================
make_name(Addr,Port) ->
httpd_util:make_name("httpd_acc_sup", Addr, Port).
start_worker(M, SocketType, Addr, Port, ConfigDB, AcceptTimeout, Manager, Modules) ->
SupName = make_name(Addr, Port),
Args = [Manager, SocketType, Addr, Port, ConfigDB, AcceptTimeout],
Spec = {{M, Addr, Port},
{M, start_link, Args},
permanent, timer:seconds(1), worker, [M] ++ Modules},
supervisor:start_child(SupName, Spec).
start_worker(M, SocketType, Addr, Port, ConfigDB, AcceptTimeout, ListenSocket,
Manager, Modules) ->
SupName = make_name(Addr, Port),
Args = [Manager, SocketType, ListenSocket, ConfigDB, AcceptTimeout],
Spec = {{M, Addr, Port},
{M, start_link, Args},
permanent, timer:seconds(1), worker, [M] ++ Modules},
supervisor:start_child(SupName, Spec).
stop_worker(M, Addr, Port) ->
SupName = make_name(Addr, Port),
Name = {M, Addr, Port},
case supervisor:terminate_child(SupName, Name) of
ok ->
supervisor:delete_child(SupName, Name);
Error ->
Error
end.
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