exception Empty_must;;
+module MQI = MQueryInterpreter
+module MQIC = MQIConn
+
let broker_id = ref None
let my_own_id = Hbugs_tutors_common.init_tutor ()
let my_own_addr, my_own_port = "127.0.0.1", 50011
let my_own_url = sprintf "%s:%d" my_own_addr my_own_port
+let environment_file = "search_pattern_apply.environment"
+let dump_environment_on_exit = false
let is_authenticated id =
match !broker_id with
| Some broker_id -> id = broker_id
(* thread who do the dirty work *)
-let slave (state, musing_id) =
+let slave mqi_handle (state, musing_id) =
try
prerr_endline (sprintf "Hi, I'm the slave for musing %s" musing_id);
let (proof, goal) = Hbugs_tutors_common.load_state state in
| hd::tl -> hd
in
let uris =
- TacticChaser.searchPattern
+ TacticChaser.matchConclusion mqi_handle
~output_html:prerr_endline ~choose_must () ~status:(proof, goal)
in
if uris = [] then
(* exception ==> no additional arm *)
raise (unbox_exception e)
-let hbugs_callback =
+let hbugs_callback mqi_handle =
let ids = Hashtbl.create 17 in
let forbidden () =
prerr_endline "ignoring request from unauthorized broker";
if is_authenticated broker_id then begin
prerr_endline "received Start_musing";
let new_musing_id = Hbugs_id_generator.new_musing_id () in
- let id = Hbugs_deity.create slave (state, new_musing_id) in
+ let id = Hbugs_deity.create (slave mqi_handle) (state, new_musing_id) in
prerr_endline
(sprintf "starting a new musing (tid = %d, id = %s)" id new_musing_id);
Hashtbl.add ids new_musing_id id ;
Exception ("unexpected_msg",
Hbugs_messages.string_of_msg unexpected_msg)
-let callback (req: Http_types.request) outchan =
+let callback mqi_handle (req: Http_types.request) outchan =
try
let req_msg = Hbugs_messages.msg_of_string req#body in
- let answer = hbugs_callback req_msg in
+ let answer = hbugs_callback mqi_handle req_msg in
Http_daemon.respond ~body:(Hbugs_messages.string_of_msg answer) outchan
with Hbugs_messages.Parse_error (subj, reason) ->
Http_daemon.respond
(Exception ("parse_error", reason)))
outchan
-let postgresqlconnectionstring =
- try
- Sys.getenv "POSTGRESQL_CONNECTION_STRING"
- with
- Not_found -> "host=mowgli.cs.unibo.it dbname=helm_mowgli_new_schema user=helm"
-;;
+let restore_environment () =
+ let ic = open_in environment_file in
+ prerr_endline "Restoring environment ...";
+ CicEnvironment.restore_from_channel
+ ~callback:(fun uri -> prerr_endline uri) ic;
+ prerr_endline "... done!";
+ close_in ic
+
+let dump_environment () =
+ let oc = open_out environment_file in
+ prerr_endline "Dumping environment ...";
+ CicEnvironment.dump_to_channel
+ ~callback:(fun uri -> prerr_endline uri) oc;
+ prerr_endline "... done!";
+ close_out oc
let main () =
+ let mqi_flags = [] in (* default MathQL interpreter options *)
try
Sys.catch_break true;
- at_exit (fun () -> Hbugs_tutors_common.unregister_from_broker my_own_id);
+ at_exit (fun () ->
+ if dump_environment_on_exit then
+ dump_environment ();
+ Hbugs_tutors_common.unregister_from_broker my_own_id);
broker_id :=
Some (Hbugs_tutors_common.register_to_broker
my_own_id my_own_url "FOO" "Search_pattern_apply tutor");
- Mqint.set_database Mqint.postgres_db ;
- Mqint.init postgresqlconnectionstring ;
+ let mqi_handle = MQIC.init mqi_flags prerr_string in
+ if Sys.file_exists environment_file then
+ restore_environment ();
Http_daemon.start'
- ~addr:my_own_addr ~port:my_own_port ~mode:`Thread callback;
- Mqint.close ()
+ ~addr:my_own_addr ~port:my_own_port ~mode:`Thread (callback mqi_handle);
+ MQIC.close mqi_handle
with Sys.Break -> () (* exit nicely, invoking at_exit functions *)
;;