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tag: v277
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(*
Copyright © 2011 MLstate
This file is part of OPA.
OPA is free software: you can redistribute it and/or modify it under the
terms of the GNU Affero General Public License, version 3, as published by
the Free Software Foundation.
OPA is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for
more details.
You should have received a copy of the GNU Affero General Public License
along with OPA. If not, see <http://www.gnu.org/licenses/>.
*)
(**
Runtime layer to merge and start a set of RuntimeSig.COMPONENT on the same scheduler.
@author Cedric Soulas
*)
module P = RuntimeType.Ports
module D = RuntimeType.Description
let make_application (type options) name opt comp =
let module Comp = (val comp : RuntimeSig.COMPONENT with type options = options) in
let module App =
struct
type options = Comp.options
type t = Comp.t
let full_name =
if name <> "" then
Printf.sprintf "%s %s (%s)" Comp.name Comp.version name
else
Printf.sprintf "%s %s" Comp.name Comp.version
let names = [full_name]
let versions = StringMap.singleton Comp.name Comp.version
let make opt sched =
let comp = Comp.make name opt sched in
let ports = Comp.get_ports comp sched in
let description = Comp.get_description comp sched in
P.add sched ports;
D.add name description;
comp
let get_options () =
let parse = ServerArg.make_parser full_name (Comp.spec_args name) in
ServerArg.filter (opt:Comp.options) parse
let run = Comp.run
let close = Comp.close
end
in
(module App : RuntimeSig.APPLICATION)
let merge_applications app1 app2 =
let module App1 = (val app1 : RuntimeSig.APPLICATION) in
let module App2 = (val app2 : RuntimeSig.APPLICATION) in
let module App =
struct
type options = App1.options * App2.options
type t = App1.t * App2.t
let merge_maps map1 map2 =
StringMap.fold
(fun k v map -> StringMap.add k v map) map2 map1
let names = App1.names @ App2.names
let versions = merge_maps App1.versions App2.versions
let get_options () = App1.get_options (), App2.get_options ()
let make (opt1, opt2) sch =
let app1 = App1.make opt1 sch in
let app2 = App2.make opt2 sch in
(app1, app2)
let run (app1, app2) sch =
let app1 = App1.run app1 sch in
let app2 = App2.run app2 sch in
(app1, app2)
let close (app1, app2) sch =
App1.close app1 sch;
App2.close app2 sch
end
in
(module App : RuntimeSig.APPLICATION)
let app = ref None
let add_component comp name opt =
match !app with
| Some a ->
app := Some (merge_applications a (make_application name opt comp))
| None ->
app := Some (make_application name opt comp)
let add_httpServer = add_component (module HttpServer : RuntimeSig.COMPONENT with type options = HttpServer.options)
let add_httpDialog = add_component (module HttpDialog : RuntimeSig.COMPONENT with type options = HttpDialog.options)
let add_ftpServer = add_component (module FtpServer : RuntimeSig.COMPONENT with type options = FtpServer.options)
let add_smtpServer = add_component (module SmtpServer : RuntimeSig.COMPONENT with type options = SmtpServer.options)
let add_watchdog = add_component (module Watchdog : RuntimeSig.COMPONENT with type options = Watchdog.options)
let start () =
let sched = Scheduler.default in
let run, close =
match !app with
| None -> (fun _ -> ()), (fun _ -> ())
| Some a ->
let module App = (val a : RuntimeSig.APPLICATION) in
let options = App.get_options () in
let args = (ServerArg.get_argv ()) in
if List.mem "--help" (ServerArg.to_list args) then exit 0;
let app = App.make options sched in
RuntimeType.Ports.init sched;
let run () = let _ = App.run app sched in () in
let close () = App.close app sched in
run, close
in
run ();
Scheduler.run sched;
close ()
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