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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 an instance of the http server. (You may
%% have several instances running on the same machine.) Hangs under
%% httpd_sup.
%%----------------------------------------------------------------------
-module(httpd_instance_sup).
-behaviour(supervisor).
-export([init/1]).
%% Internal API
-export([start/1, start_link/1, start_link/3, start2/1, start_link2/1,
stop/1, stop/2, stop2/1]).
%%%=========================================================================
%%% Supervisor callback
%%%=========================================================================
init([ConfigFile, ConfigList, AcceptTimeout, Debug, Addr, Port]) ->
httpd_util:enable_debug(Debug),
Flags = {one_for_one, 0, 1},
Children = [sup_spec(httpd_acceptor_sup, Addr, Port),
sup_spec(httpd_misc_sup, Addr, Port),
worker_spec(httpd_manager, Addr, Port,
ConfigFile, ConfigList,AcceptTimeout)],
{ok, {Flags, Children}}.
%%%=========================================================================
%%% ??? functions
%%%=========================================================================
start(ConfigFile) ->
case start_link(ConfigFile) of
{ok, Pid} ->
unlink(Pid),
{ok, Pid};
Else ->
Else
end.
start_link(Config) ->
case catch httpd_options(Config) of
{error,Reason} ->
error_logger:error_report(Reason),
{stop, Reason};
{ConfigFile,AcceptTimeout,Debug} ->
start_link(ConfigFile, AcceptTimeout, Debug)
end.
start_link(ConfigFile, AcceptTimeout, Debug) ->
case get_addr_and_port(ConfigFile) of
{ok, ConfigList, Addr, Port} ->
Name = make_name(Addr, Port),
SupName = {local, Name},
supervisor:start_link(SupName, ?MODULE,
[ConfigFile, ConfigList ,AcceptTimeout ,
Debug, Addr, Port]);
{error, Reason} ->
error_logger:error_report(Reason),
{stop, Reason}
end.
start2(ConfigList) ->
case start_link2(ConfigList) of
{ok, Pid} ->
unlink(Pid),
{ok, Pid};
Else ->
Else
end.
start_link2(ConfigList) ->
{ok, Addr, Port} = get_addr_and_port2(ConfigList),
Name = make_name(Addr, Port),
SupName = {local, Name},
Debug = [],
AcceptTimeout = 15000,
supervisor:start_link(SupName, ?MODULE,
[undefined, ConfigList, AcceptTimeout,
Debug, Addr, Port]).
stop(Pid) when pid(Pid) ->
do_stop(Pid);
stop(ConfigFile) when list(ConfigFile) ->
case get_addr_and_port(ConfigFile) of
{ok, _, Addr, Port} ->
stop(Addr, Port);
Error ->
Error
end;
stop(_StartArgs) ->
ok.
stop(Addr, Port) when integer(Port) ->
Name = make_name(Addr, Port),
case whereis(Name) of
Pid when pid(Pid) ->
do_stop(Pid),
ok;
_ ->
not_started
end.
stop2(ConfigList) when list(ConfigList) ->
{ok, Addr, Port} = get_addr_and_port2(ConfigList),
stop(Addr, Port).
%%%=========================================================================
%%% Internal functions
%%%=========================================================================
do_stop(Pid) ->
exit(Pid, shutdown).
sup_spec(SupModule, Addr, Port) ->
Name = {SupModule, Addr, Port},
StartFunc = {SupModule, start_link, [Addr, Port]},
Restart = permanent,
Shutdown = infinity,
Modules = [SupModule],
Type = supervisor,
{Name, StartFunc, Restart, Shutdown, Type, Modules}.
worker_spec(WorkerModule, Addr, Port, ConfigFile, ConfigList, AcceptTimeout) ->
Name = {WorkerModule, Addr, Port},
StartFunc = {WorkerModule, start_link,
[ConfigFile, ConfigList, AcceptTimeout]},
Restart = permanent,
Shutdown = 4000,
Modules = [WorkerModule],
Type = worker,
{Name, StartFunc, Restart, Shutdown, Type, Modules}.
httpd_options(Config) ->
OptionList = mk_tuple_list(Config),
Debug = http_util:key1search(OptionList,debug,[]),
AcceptTimeout = http_util:key1search(OptionList,accept_timeout,15000),
ConfigFile =
case http_util:key1search(OptionList,file) of
undefined -> throw({error,{mandatory_conf_file_missed}});
File -> File
end,
httpd_util:valid_options(Debug,AcceptTimeout,ConfigFile),
{ConfigFile, AcceptTimeout, Debug}.
mk_tuple_list([]) ->
[];
mk_tuple_list([H={_,_}|T]) ->
[H|mk_tuple_list(T)];
mk_tuple_list(F) when list(F) ->
[{file,F}].
make_name(Addr,Port) ->
httpd_util:make_name("httpd_instance_sup",Addr,Port).
get_addr_and_port(ConfigFile) ->
case httpd_conf:load(ConfigFile) of
{ok, ConfigList} ->
{ok, Addr, Port} = get_addr_and_port2(ConfigList),
{ok, ConfigList, Addr, Port};
Error ->
Error
end.
get_addr_and_port2(ConfigList) ->
Port = httpd_util:key1search(ConfigList, port, 80),
Addr = httpd_util:key1search(ConfigList, bind_address),
{ok, Addr, Port}.
|
