itp_server.ml 43.4 KB
Newer Older
1
open Format
Sylvain Dailler's avatar
Sylvain Dailler committed
2
open Stdlib
3 4
open Session_itp
open Controller_itp
Sylvain Dailler's avatar
Sylvain Dailler committed
5
open Server_utils
6
open Itp_communication
7

Sylvain Dailler's avatar
Sylvain Dailler committed
8
exception Bad_prover_name of string
9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49

(**********************************)
(* list unproven goal and related *)
(**********************************)

(* If the transformation is proved, return acc.
   Else, return the concatenation of the reversed list of unproven
   goals below the transformation and acc *)
let rec unproven_goals_below_tn cont acc tn =
  if tn_proved cont tn then
    acc                         (* we ignore "dead" goals *)
  else
    let sub_tasks = get_sub_tasks cont.controller_session tn in
    List.fold_left (unproven_goals_below_pn cont) acc sub_tasks

(* Same as unproven_goals_below_tn; note that if goal is not proved
   and there is no transformation, goal is returned (else it is not) *)
and unproven_goals_below_pn cont acc goal =
  if pn_proved cont goal then
    acc                         (* we ignore "dead" transformations *)
  else
    match get_transformations cont.controller_session goal with
    | [] -> goal :: acc
    | tns -> List.fold_left (unproven_goals_below_tn cont) acc tns

(* Same as unproven_goals_below_tn *)
let unproven_goals_below_th cont acc th =
  if th_proved cont th then
    acc
  else
    let goals = theory_goals th in
    List.fold_left (unproven_goals_below_pn cont) acc goals

(* Same as unproven_goals_below_tn *)
let unproven_goals_below_file cont file =
  if file_proved cont file then
    []
  else
    let theories = file.file_theories in
    List.fold_left (unproven_goals_below_th cont) [] theories

50 51 52 53 54 55 56 57 58 59 60 61 62
let unproven_goals_below_id cont id =
  match id  with
  | APn pnid   -> [pnid]
  | APa panid  ->
     let ses = cont.controller_session in
     [get_proof_attempt_parent ses panid]
  | ATn tn     ->
     List.rev (unproven_goals_below_tn cont [] tn)
  | AFile file ->
     List.rev (unproven_goals_below_file cont file)
  | ATh th     ->
     List.rev (unproven_goals_below_th cont [] th)

Sylvain Dailler's avatar
Sylvain Dailler committed
63 64 65 66
(*******************)
(* Strategies list *)
(*******************)
let loaded_strategies = ref []
67 68 69 70

(****** Exception handling *********)

let print_term s id fmt t =
71
  let tables = match (Session_itp.get_table s id) with
72 73 74 75 76
  | None -> Args_wrapper.build_name_tables (Session_itp.get_task s id)
  | Some tables -> tables in
  Why3printer.print_term tables fmt t

let print_type s id fmt t =
77
  let tables = match (Session_itp.get_table s id) with
78 79 80 81 82
  | None -> Args_wrapper.build_name_tables (Session_itp.get_task s id)
  | Some tables -> tables in
  Why3printer.print_ty tables fmt t

let print_ts s id fmt t =
83
  let tables = match (Session_itp.get_table s id) with
84 85 86 87 88
  | None -> Args_wrapper.build_name_tables (Session_itp.get_task s id)
  | Some tables -> tables in
  Why3printer.print_ts tables fmt t

let print_ls s id fmt t =
89
  let tables = match (Session_itp.get_table s id) with
90 91 92 93 94
  | None -> Args_wrapper.build_name_tables (Session_itp.get_task s id)
  | Some tables -> tables in
  Why3printer.print_ls tables fmt t

let print_tv s id fmt t =
95
  let tables = match (Session_itp.get_table s id) with
96 97 98 99 100
  | None -> Args_wrapper.build_name_tables (Session_itp.get_task s id)
  | Some tables -> tables in
  Why3printer.print_tv tables fmt t

let print_vsty s id fmt t =
101
  let tables = match (Session_itp.get_table s id) with
102 103 104 105 106
  | None -> Args_wrapper.build_name_tables (Session_itp.get_task s id)
  | Some tables -> tables in
  Why3printer.print_forget_vsty tables fmt t

let print_pr s id fmt t =
107
  let tables = match (Session_itp.get_table s id) with
108 109 110 111 112
  | None -> Args_wrapper.build_name_tables (Session_itp.get_task s id)
  | Some tables -> tables in
  Why3printer.print_pr tables fmt t

let print_pat s id fmt t =
113
  let tables = match (Session_itp.get_table s id) with
114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221
  | None -> Args_wrapper.build_name_tables (Session_itp.get_task s id)
  | Some tables -> tables in
  Why3printer.print_pat tables fmt t

(* Exception reporting *)

(* TODO remove references to id.id_string in this function *)
let bypass_pretty s id =
  begin fun fmt exn -> match exn with
  | Ty.TypeMismatch (t1,t2) ->
      fprintf fmt "Type mismatch between %a and %a"
        (print_type s id) t1 (print_type s id) t2
  | Ty.BadTypeArity ({Ty.ts_args = []} as ts, _) ->
      fprintf fmt "Type symbol %a expects no arguments" (print_ts s id) ts
  | Ty.BadTypeArity (ts, app_arg) ->
      let i = List.length ts.Ty.ts_args in
      fprintf fmt "Type symbol %a expects %i argument%s but is applied to %i"
        (print_ts s id) ts i (if i = 1 then "" else "s") app_arg
  | Ty.DuplicateTypeVar tv ->
      fprintf fmt "Type variable %a is used twice" (print_tv s id) tv
  | Ty.UnboundTypeVar tv ->
      fprintf fmt "Unbound type variable: %a" (print_tv s id) tv
  | Ty.UnexpectedProp ->
      fprintf fmt "Unexpected propositional type"
  | Term.BadArity ({Term.ls_args = []} as ls, _) ->
      fprintf fmt "%s %a expects no arguments"
        (if ls.Term.ls_value = None then "Predicate" else "Function") (print_ls s id) ls
  | Term.BadArity (ls, app_arg) ->
      let i = List.length ls.Term.ls_args in
      fprintf fmt "%s %a expects %i argument%s but is applied to %i"
        (if ls.Term.ls_value = None then "Predicate" else "Function")
        (print_ls s id) ls i (if i = 1 then "" else "s") app_arg
  | Term.EmptyCase ->
      fprintf fmt "Empty match expression"
  | Term.DuplicateVar vs ->
      fprintf fmt "Variable %a is used twice" (print_vsty s id) vs
  | Term.UncoveredVar vs ->
      fprintf fmt "Variable %a uncovered in \"or\"-pattern" (print_vsty s id) vs
  | Term.FunctionSymbolExpected ls ->
      fprintf fmt "Not a function symbol: %a" (print_ls s id) ls
  | Term.PredicateSymbolExpected ls ->
      fprintf fmt "Not a predicate symbol: %a" (print_ls s id) ls
  | Term.ConstructorExpected ls ->
      fprintf fmt "%s %a is not a constructor"
        (if ls.Term.ls_value = None then "Predicate" else "Function") (print_ls s id) ls
  | Term.TermExpected t ->
      fprintf fmt "Not a term: %a" (print_term s id) t
  | Term.FmlaExpected t ->
      fprintf fmt "Not a formula: %a" (print_term s id) t
  | Pattern.ConstructorExpected (ls,ty) ->
      fprintf fmt "%s %a is not a constructor of type %a"
        (if ls.Term.ls_value = None then "Predicate" else "Function") (print_ls s id) ls
        (print_type s id) ty
  | Pattern.NonExhaustive pl ->
      fprintf fmt "Pattern not covered by a match:@\n  @[%a@]"
        (print_pat s id) (List.hd pl)
  | Decl.BadConstructor ls ->
      fprintf fmt "Bad constructor: %a" (print_ls s id) ls
  | Decl.BadRecordField ls ->
      fprintf fmt "Not a record field: %a" (print_ls s id) ls
  | Decl.RecordFieldMissing (_cs,ls) ->
      fprintf fmt "Field %a is missing" (print_ls s id) ls
  | Decl.DuplicateRecordField (_cs,ls) ->
      fprintf fmt "Field %a is used twice in the same constructor" (print_ls s id) ls
  | Decl.IllegalTypeAlias ts ->
      fprintf fmt
        "Type symbol %a is a type alias and cannot be declared as algebraic"
        (print_ts s id) ts
  | Decl.NonFoundedTypeDecl ts ->
      fprintf fmt "Cannot construct a value of type %a" (print_ts s id) ts
  | Decl.NonPositiveTypeDecl (_ts, ls, ty) ->
      fprintf fmt "Constructor %a \
          contains a non strictly positive occurrence of type %a"
        (print_ls s id) ls (print_type s id) ty
  | Decl.InvalidIndDecl (_ls, pr) ->
      fprintf fmt "Ill-formed inductive clause %a"
        (print_pr s id) pr
  | Decl.NonPositiveIndDecl (_ls, pr, ls1) ->
      fprintf fmt "Inductive clause %a contains \
          a non strictly positive occurrence of symbol %a"
        (print_pr s id) pr (print_ls s id) ls1
  | Decl.BadLogicDecl (ls1,ls2) ->
      fprintf fmt "Ill-formed definition: symbols %a and %a are different"
        (print_ls s id) ls1 (print_ls s id) ls2
  | Decl.UnboundVar vs ->
      fprintf fmt "Unbound variable: %a" (print_vsty s id) vs
  | Decl.ClashIdent id ->
      fprintf fmt "Ident %s is defined twice" id.Ident.id_string
  | Decl.EmptyDecl ->
      fprintf fmt "Empty declaration"
  | Decl.EmptyAlgDecl ts ->
      fprintf fmt "Algebraic type %a has no constructors" (print_ts s id) ts
  | Decl.EmptyIndDecl ls ->
      fprintf fmt "Inductive predicate %a has no constructors" (print_ls s id) ls
  | Decl.KnownIdent id ->
      fprintf fmt "Ident %s is already declared" id.Ident.id_string
  | Decl.UnknownIdent id ->
      fprintf fmt "Ident %s is not yet declared" id.Ident.id_string
  | Decl.RedeclaredIdent id ->
      fprintf fmt "Ident %s is already declared, with a different declaration"
        id.Ident.id_string
  | Decl.NoTerminationProof ls ->
      fprintf fmt "Cannot prove the termination of %a" (print_ls s id) ls
  | _ -> Format.fprintf fmt "Uncaught: %a" Exn_printer.exn_printer exn
  end

let get_exception_message ses id fmt e =
  match e with
222 223
  | Controller_itp.Noprogress ->
      Format.fprintf fmt "Transformation made no progress\n"
224 225 226 227 228 229 230 231
  | Case.Arg_trans_type (s, ty1, ty2) ->
      Format.fprintf fmt "Error in transformation %s during unification of the following terms:\n %a \n %a"
        s (print_type ses id) ty1 (print_type ses id) ty2
  | Case.Arg_trans_term (s, t1, t2) ->
      Format.fprintf fmt "Error in transformation %s during unification of following two terms:\n %a \n %a" s
        (print_term ses id) t1 (print_term ses id) t2
  | Case.Arg_trans (s) ->
      Format.fprintf fmt "Error in transformation function: %s \n" s
Sylvain Dailler's avatar
Sylvain Dailler committed
232
  | Args_wrapper.Arg_hyp_not_found (s) ->
233 234 235 236 237 238 239 240
      Format.fprintf fmt "Following hypothesis was not found: %s \n" s
  | Args_wrapper.Arg_theory_not_found (s) ->
      Format.fprintf fmt "Theory not found: %s" s
  | e ->
      bypass_pretty ses id fmt e



Clément Fumex's avatar
Clément Fumex committed
241 242


Sylvain Dailler's avatar
Sylvain Dailler committed
243
(* Debugging functions *)
244 245
let print_request fmt r =
  match r with
246 247 248 249 250 251 252
  | Command_req (_nid, s)           -> fprintf fmt "command \"%s\"" s
  | Prove_req (_nid, prover, _rl)   -> fprintf fmt "prove with %s" prover
  | Transform_req (_nid, tr, _args) -> fprintf fmt "transformation :%s" tr
  | Strategy_req (_nid, st)         -> fprintf fmt "strategy %s" st
  | Open_session_req f              -> fprintf fmt "open session file %s" f
  | Add_file_req f                  -> fprintf fmt "open file %s" f
  | Set_max_tasks_req i             -> fprintf fmt "set max tasks %i" i
253
  | Get_file_contents _f            -> fprintf fmt "get file contents"
254
  | Get_first_unproven_node _nid    -> fprintf fmt "get first unproven node"
255
  | Get_task _nid                   -> fprintf fmt "get task"
256
  | Remove_subtree _nid             -> fprintf fmt "remove subtree"
Sylvain Dailler's avatar
Sylvain Dailler committed
257 258
  | Copy_paste _                    -> fprintf fmt "copy paste"
  | Copy_detached _                 -> fprintf fmt "copy detached"
259
  | Get_Session_Tree_req            -> fprintf fmt "get session tree"
260
  | Save_file_req _                 -> fprintf fmt "save file"
261
  | Mark_obsolete_req _             -> fprintf fmt "mark obsolete"
262
  | Clean_req                       -> fprintf fmt "clean"
263 264 265 266
  | Save_req                        -> fprintf fmt "save"
  | Reload_req                      -> fprintf fmt "reload"
  | Replay_req                      -> fprintf fmt "replay"
  | Exit_req                        -> fprintf fmt "exit"
267
  | Interrupt_req                   -> fprintf fmt "interrupt"
268

Sylvain Dailler's avatar
Sylvain Dailler committed
269 270 271 272 273 274 275 276 277 278 279
let print_msg fmt m =
  match m with
  | Proof_error (_ids, s)  -> fprintf fmt "proof error %s" s
  | Transf_error (_ids, s) -> fprintf fmt "transf error %s" s
  | Strat_error (_ids, s)  -> fprintf fmt "start error %s" s
  | Replay_Info s          -> fprintf fmt "replay info %s" s
  | Query_Info (_ids, s)   -> fprintf fmt "query info %s" s
  | Query_Error (_ids, s)  -> fprintf fmt "query error %s" s
  | Help _s                -> fprintf fmt "help"
  | Information s          -> fprintf fmt "info %s" s
  | Task_Monitor _         -> fprintf fmt "task montor"
280
  | Parse_Or_Type_Error s  -> fprintf fmt "parse_or_type_error:\n %s" s
281
  | File_Saved s           -> fprintf fmt "file saved %s" s
Sylvain Dailler's avatar
Sylvain Dailler committed
282
  | Error s                -> fprintf fmt "%s" s
283
  | Open_File_Error s      -> fprintf fmt "%s" s
Sylvain Dailler's avatar
Sylvain Dailler committed
284

285 286 287 288 289 290 291 292 293 294 295
(* TODO ad hoc printing. Should reuse print_loc. *)
let print_loc fmt (loc: Loc.position) =
  let (f,l,b,e) = Loc.get loc in
   fprintf fmt "File \"%s\", line %d, characters %d-%d" f l b e

let print_list_loc fmt l =
  Pp.print_list
    (fun _fmt () -> ())
    (fun fmt (loc, _c) -> Format.fprintf fmt "(%a, color)" print_loc loc)
    fmt l

Sylvain Dailler's avatar
Sylvain Dailler committed
296 297
let print_notify fmt n =
  match n with
298 299 300 301 302 303
  | Node_change (ni, nf)               ->
      begin
        match nf with
        | Proved b -> fprintf fmt "node change %d Proved %b" ni b
        | _        -> fprintf fmt "node change %d" ni
      end
304 305
  | New_node (ni, _pni, _nt,  _nf, _d) -> fprintf fmt "new node %d" ni
  | Remove _ni                         -> fprintf fmt "remove"
306
  | Next_Unproven_Node_Id (_ni, _nj)   -> fprintf fmt "next unproven node_id"
307 308 309
  | Initialized _gi                    -> fprintf fmt "initialized"
  | Saved                              -> fprintf fmt "saved"
  | Message msg                        ->
Sylvain Dailler's avatar
Sylvain Dailler committed
310
      print_msg fmt msg
311
  | Dead s                             -> fprintf fmt "dead :%s" s
312
  | File_contents (_f, _s)             -> fprintf fmt "file contents"
313 314 315
  | Task (ni, _s, list_loc)            ->
      fprintf fmt "task for node_ID %d which contains a list of loc %a"
        ni print_list_loc list_loc
Sylvain Dailler's avatar
Sylvain Dailler committed
316

Clément Fumex's avatar
Clément Fumex committed
317
module type Protocol = sig
Clément Fumex's avatar
Clément Fumex committed
318 319
  val get_requests : unit -> ide_request list
  val notify : notification -> unit
Clément Fumex's avatar
Clément Fumex committed
320 321
end

322 323 324
module Make (S:Controller_itp.Scheduler) (P:Protocol) = struct

  module C = Controller_itp.Make(S)
Clément Fumex's avatar
Clément Fumex committed
325

326
  let debug = Debug.register_flag "itp_server" ~desc:"ITP server"
Clément Fumex's avatar
Clément Fumex committed
327

328 329 330 331 332

(****************)
(* Command list *)
(****************)

333
let interrupt_query _cont _args = C.interrupt (); "interrupted"
334

335 336 337 338 339 340 341 342 343 344 345 346 347
let commands_table = Stdlib.Hstr.create 17

let register_command c d f = Stdlib.Hstr.add commands_table c (d,f)

let () =
  List.iter (fun (c,d,f) -> register_command c d f)
    [
    "interrupt", "interrupt all scheduled or running proof tasks",
    Qnotask interrupt_query;
    "list-transforms", "list available transformations",
    Qnotask list_transforms_query;
    "list-provers", "list available provers",
    Qnotask list_provers;
348 349 350
(*
    "list-strategies", "list available strategies", list_strategies;
*)
351 352 353 354
    "print", "<id> print the declaration where <id> was defined",
    Qtask print_id;
    "search", "<is> print declarations where <id> appears",
    Qtask search_id;
355 356 357 358 359 360 361 362 363 364 365 366
(*
    "r", "reload the session (test only)", test_reload;
    "s", "save the current session", test_save_session;
    "ng", "go to the next goal", then_print (move_to_goal_ret_p next_node);
    "pg", "go to the prev goal", then_print (move_to_goal_ret_p prev_node);
    "gu", "go to the goal up",  then_print (move_to_goal_ret_p zipper_up);
    "gd", "go to the goal down",  then_print (move_to_goal_ret_p zipper_down);
    "gr", "go to the goal right",  then_print (move_to_goal_ret_p zipper_right);
    "gl", "go to the goal left",  then_print (move_to_goal_ret_p zipper_left)
 *)
  ]

367
  type server_data =
368
    { task_driver : Driver.driver;
369 370
      cont : Controller_itp.controller;
    }
Clément Fumex's avatar
Clément Fumex committed
371

372
  let server_data = ref None
Clément Fumex's avatar
Clément Fumex committed
373

374
  let get_server_data () =
375 376 377 378 379
    match !server_data with
    | None ->
       Format.eprintf "[ITP server] not yet initialized@.";
       exit 1
    | Some x -> x
Clément Fumex's avatar
Clément Fumex committed
380

381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446
(*******************************)
(* Compute color for locations *)
(*******************************)

(* This section is used to get colored source as a function of the task *)


(* These functions append stuff to a list which will then be passed to the
   Task notification. *)
let color_loc list ~color ~loc =
  let d = get_server_data () in
  let (f,l,b,e) = Loc.get loc in
  let f = Sysutil.relativize_filename
    (Session_itp.get_dir d.cont.controller_session) f in
  let loc = Loc.user_position f l b e in
  list := (loc, color) :: !list

let rec color_locs list ~color formula =
  let b = ref false in
  Opt.iter (fun loc -> color_loc list ~color ~loc; b := true) formula.Term.t_loc;
  Term.t_fold (fun b subf -> color_locs list ~color subf || b) !b formula

let rec color_t_locs list f =
  let premise_tag = function
    | { Term.t_node = Term.Tnot _; t_loc = None } -> Neg_premise_color
    | _ -> Premise_color
  in
  match f.Term.t_node with
    | Term.Tbinop (Term.Timplies,f1,f2) ->
        let b = color_locs list ~color:(premise_tag f1) f1 in
        color_t_locs list f2 || b
    | Term.Tlet (t,fb) ->
        let _,f1 = Term.t_open_bound fb in
        let b = color_locs list ~color:(premise_tag t) t in
        color_t_locs list f1 || b
    | Term.Tquant (Term.Tforall,fq) ->
        let _,_,f1 = Term.t_open_quant fq in
        color_t_locs list f1
    | _ ->
        color_locs list ~color:Goal_color f

exception No_loc_on_goal

let color_goal list loc =
  match loc with
  | None -> raise No_loc_on_goal
  | Some loc -> color_loc list ~color:Goal_color ~loc

let get_locations list (task: Task.task) =
  let goal_id : Ident.ident = (Task.task_goal task).Decl.pr_name in
  color_goal list goal_id.Ident.id_loc;
  match task with
    | Some
        { Task.task_decl =
            { Theory.td_node =
                Theory.Decl { Decl.d_node = Decl.Dprop (Decl.Pgoal, _, f)}}} ->
        if not (color_t_locs list f) then
          Opt.iter (fun loc -> color_loc list ~color:Goal_color ~loc) goal_id.Ident.id_loc
    | _ ->
        assert false

let get_locations t =
  let l = ref [] in
  get_locations l t;
  !l

447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476
  (*********************)
  (* File input/output *)
  (*********************)

  let read_and_send f =
    try
      let d = get_server_data() in
      let fn = Sysutil.absolutize_filename
          (Session_itp.get_dir d.cont.controller_session) f in
      let s = Sysutil.file_contents fn in
      P.notify (File_contents (f, s))
    with Invalid_argument s ->
      P.notify (Message (Error s))

  let save_file f file_content =
    try
      let d = get_server_data() in
      let fn = Sysutil.absolutize_filename
          (Session_itp.get_dir d.cont.controller_session) f in
      Sysutil.write_file fn file_content;
      P.notify (Message (File_Saved f))
    with Invalid_argument s ->
      P.notify (Message (Error s))

  (* Send source file from the controller to the IDE even if the controller's
     status is not correct *)
  let load_files_session () =
    let d = get_server_data () in
    let s = d.cont.controller_session in
    let files = Session_itp.get_files s in
477 478 479
    Stdlib.Hstr.iter (fun _ f ->
                      Format.eprintf "File : %s@." f.file_name;
                      read_and_send f.file_name) files
480 481 482 483

  (* Reload_files that is used even if the controller is not correct. It can
     be incorrect and end up in a correct state. *)
  let reload_files cont ~use_shapes =
484
    try reload_files cont ~use_shapes; true with
485 486 487 488 489 490 491 492 493 494 495
    | e ->
      let s = Format.asprintf "%a@." Exn_printer.exn_printer e in
      P.notify (Message (Parse_Or_Type_Error s));
      false

  let add_file c ?format fname =
    try add_file c ?format fname; true with
    | e ->
        let s = Format.asprintf "%a@." Exn_printer.exn_printer e in
        P.notify (Message (Parse_Or_Type_Error s)); false

496
  let task_driver config env =
497 498 499 500 501 502 503 504 505
    try
      let main = Whyconf.get_main config in
      let d = Filename.concat (Whyconf.datadir main)
                              (Filename.concat "drivers" "why3_itp.drv")
      in
      let d = Driver.load_driver env d [] in
      Debug.dprintf debug "[ITP server] driver for task printing loaded@.";
      d
    with e ->
506 507
      Format.eprintf "Fatal error while loading itp driver: %a@." Exn_printer.exn_printer e;
      exit 1
Clément Fumex's avatar
Clément Fumex committed
508

509 510
  let get_prover_list (config: Whyconf.config) =
    Mstr.fold (fun x _ acc -> x :: acc) (Whyconf.get_prover_shortcuts config) []
Sylvain Dailler's avatar
Sylvain Dailler committed
511

512
  let init_server config env =
513
    let c = create_controller config env in
514 515
    let task_driver = task_driver config env in
    server_data := Some
516
                     { task_driver = task_driver;
517
                       cont = c }
Sylvain Dailler's avatar
Sylvain Dailler committed
518 519

  (* -----------------------------------   ------------------------------------- *)
Clément Fumex's avatar
Clément Fumex committed
520

521 522 523
  let get_node_type (node: any) =
    match node with
    | AFile _ -> NFile
Sylvain Dailler's avatar
Sylvain Dailler committed
524 525 526 527
    | ATh _   -> NTheory
    | ATn _   -> NTransformation
    | APn _   -> NGoal
    | APa _   -> NProofAttempt
528 529

  let get_node_name (node: any) =
530
    let d = get_server_data () in
531 532 533 534 535 536
    match node with
    | AFile file ->
      file.file_name
    | ATh th ->
      (theory_name th).Ident.id_string
    | ATn tn ->
537 538 539 540 541 542
       let name = get_transf_name d.cont.controller_session tn in
       let args = get_transf_args d.cont.controller_session tn in
       let full = String.concat " " (name :: args) in
       if String.length full >= 40 then
         String.sub full 0 40 ^ " ..."
       else full
543
    | APn pn ->
544
      (get_proof_name d.cont.controller_session pn).Ident.id_string
545
    | APa pa ->
546
      let pa = get_proof_attempt_node d.cont.controller_session pa in
547 548
      Pp.string_of Whyconf.print_prover pa.prover

549 550 551 552
  let get_node_detached (node: any) =
    let d = get_server_data () in
    is_detached d.cont.controller_session node

553 554 555
  let get_node_proved new_id (node: any) =
    let d = get_server_data () in
    let cont = d.cont in
556
    match node with
557 558
    | AFile file ->
      P.notify (Node_change (new_id, Proved (file_proved cont file)))
559
    | ATh th ->
560 561 562 563 564 565 566 567 568 569
      P.notify (Node_change (new_id, Proved (th_proved cont th)))
    | ATn tn ->
      P.notify (Node_change (new_id, Proved (tn_proved cont tn)))
    | APn pn ->
      P.notify (Node_change (new_id, Proved (pn_proved cont pn)))
    | APa pa ->
      let pa = get_proof_attempt_node cont.controller_session pa in
      let is_obsolete = pa.proof_obsolete in
      let resource_limit = pa.limit in
      begin
570
        match pa.Session_itp.proof_state with
571 572 573 574 575 576
        | Some pa ->
            P.notify (Node_change (
                       new_id, Proof_status_change
                                (Done pa, is_obsolete, resource_limit)))
        | _ -> ()
      end
577

578
(*
Sylvain Dailler's avatar
Sylvain Dailler committed
579 580 581 582 583
  let get_info_and_type ses (node: any) =
    match node with
    | AFile file ->
        let name = file.file_name in
        let proved = file_proved cont file in
584
        NFile, {name; proved}
Sylvain Dailler's avatar
Sylvain Dailler committed
585 586 587
    | ATh th     ->
        let name = (theory_name th).Ident.id_string in
        let proved = th_proved cont th in
588
        NTheory, {name; proved}
Sylvain Dailler's avatar
Sylvain Dailler committed
589 590 591
    | ATn tn     ->
        let name = get_transf_name ses tn in
        let proved = tn_proved cont tn in
592
        NTransformation, {name; proved}
Sylvain Dailler's avatar
Sylvain Dailler committed
593 594 595
    | APn pn     ->
        let name = (get_proof_name ses pn).Ident.id_string in
        let proved = pn_proved cont pn in
596
          NGoal, {name; proved}
Sylvain Dailler's avatar
Sylvain Dailler committed
597 598 599
    | APa pan    ->
        let pa = get_proof_attempt_node ses pan in
        let name = Pp.string_of Whyconf.print_prover pa.prover in
Clément Fumex's avatar
Clément Fumex committed
600 601 602
        let pr, proved = match pa.Session_itp.proof_state with
        | Some pr -> Some pr.pr_answer, pr.pr_answer = Valid
        | None -> None, false
Sylvain Dailler's avatar
Sylvain Dailler committed
603
        in
Clément Fumex's avatar
Clément Fumex committed
604 605
        (NProofAttempt (pr, pa.proof_obsolete)),
        {name; proved}
606
*)
Sylvain Dailler's avatar
Sylvain Dailler committed
607

608 609 610 611 612 613 614 615 616 617
(* fresh gives new fresh "names" for node_ID using a counter.
   reset resets the counter so that we can regenerate node_IDs as if session
   was fresh *)
  let reset, fresh =
    let count = ref 0 in
    (fun () ->
      count := 0),
    fun () ->
      count := !count + 1;
      !count
Sylvain Dailler's avatar
Sylvain Dailler committed
618

619
  let model_any : any Hint.t = Hint.create 17
Clément Fumex's avatar
Clément Fumex committed
620

621
  let any_from_node_ID (nid:node_ID) : any = Hint.find model_any nid
Clément Fumex's avatar
Clément Fumex committed
622 623 624 625 626 627 628 629 630 631 632 633

  let pan_to_node_ID  : node_ID Hpan.t = Hpan.create 17
  let pn_to_node_ID   : node_ID Hpn.t = Hpn.create 17
  let tn_to_node_ID   : node_ID Htn.t = Htn.create 17
  let th_to_node_ID   : node_ID Ident.Hid.t = Ident.Hid.create 7
  let file_to_node_ID : node_ID Hstr.t = Hstr.create 3

  let node_ID_from_pan  pan  = Hpan.find pan_to_node_ID pan
  let node_ID_from_pn   pn   = Hpn.find pn_to_node_ID pn
  let node_ID_from_tn   tn   = Htn.find tn_to_node_ID tn
  let node_ID_from_th   th   = Ident.Hid.find th_to_node_ID (theory_name th)
  let node_ID_from_file file = Hstr.find file_to_node_ID (file.file_name)
Clément Fumex's avatar
Clément Fumex committed
634

635 636 637 638 639 640 641 642
  let node_ID_from_any  any  =
    match any with
    | AFile file -> node_ID_from_file file
    | ATh th     -> node_ID_from_th th
    | ATn tn     -> node_ID_from_tn tn
    | APn pn     -> node_ID_from_pn pn
    | APa pan    -> node_ID_from_pan pan

643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665
  let remove_any_node_ID any =
    match any with
    | AFile file ->
        let nid = Hstr.find file_to_node_ID file.file_name in
        Hint.remove model_any nid;
        Hstr.remove file_to_node_ID file.file_name
    | ATh th     ->
        let nid = Ident.Hid.find th_to_node_ID (theory_name th) in
        Hint.remove model_any nid;
        Ident.Hid.remove th_to_node_ID (theory_name th)
    | ATn tn     ->
        let nid = Htn.find tn_to_node_ID tn in
        Hint.remove model_any nid;
        Htn.remove tn_to_node_ID tn
    | APn pn     ->
        let nid = Hpn.find pn_to_node_ID pn in
        Hint.remove model_any nid;
        Hpn.remove pn_to_node_ID pn
    | APa pa     ->
        let nid = Hpan.find pan_to_node_ID pa in
        Hint.remove model_any nid;
        Hpan.remove pan_to_node_ID pa

Sylvain Dailler's avatar
Sylvain Dailler committed
666
  let get_prover p =
667
    let d = get_server_data () in
668
    match return_prover p d.cont.controller_config with
Sylvain Dailler's avatar
Sylvain Dailler committed
669 670
    | None -> raise (Bad_prover_name p)
    | Some c -> c
Clément Fumex's avatar
Clément Fumex committed
671

Sylvain Dailler's avatar
Sylvain Dailler committed
672 673 674 675 676 677 678
  let add_node_to_table node new_id =
    match node with
    | AFile file -> Hstr.add file_to_node_ID file.file_name new_id
    | ATh th     -> Ident.Hid.add th_to_node_ID (theory_name th) new_id
    | ATn tn     -> Htn.add tn_to_node_ID tn new_id
    | APn pn     -> Hpn.add pn_to_node_ID pn new_id
    | APa pan    -> Hpan.add pan_to_node_ID pan new_id
Clément Fumex's avatar
Clément Fumex committed
679

Sylvain Dailler's avatar
Sylvain Dailler committed
680
  (* Create a new node in the_tree, update the tables and send a
Clément Fumex's avatar
Clément Fumex committed
681
     notification about it *)
Sylvain Dailler's avatar
Sylvain Dailler committed
682
  let new_node ~parent node : node_ID =
683 684
    let new_id = fresh () in
      Hint.add model_any new_id node;
685 686
      let node_type = get_node_type node in
      let node_name = get_node_name node in
687
      let node_detached = get_node_detached node in
Sylvain Dailler's avatar
Sylvain Dailler committed
688
      add_node_to_table node new_id;
689
      P.notify (New_node (new_id, parent, node_type, node_name, node_detached));
690 691
      if node_type = NFile then
        read_and_send node_name;
692
      get_node_proved new_id node;
Clément Fumex's avatar
Clément Fumex committed
693 694
      new_id

Sylvain Dailler's avatar
Sylvain Dailler committed
695 696 697
  (****************************)
  (* Iter on the session tree *)
  (****************************)
Sylvain Dailler's avatar
Sylvain Dailler committed
698

699 700 701 702
  (* Iter on the session tree with a function [f parent current] with type
     node_ID -> any -> unit *)
  let iter_subtree_proof_attempt_from_goal
    (f: parent:node_ID -> any -> unit) parent id =
703
    let d = get_server_data () in
Clément Fumex's avatar
Clément Fumex committed
704
    Whyconf.Hprover.iter
705
      (fun _pa panid -> f ~parent (APa panid))
706
      (get_proof_attempt_ids d.cont.controller_session id)
Clément Fumex's avatar
Clément Fumex committed
707

708 709
  let rec iter_subtree_from_goal
    (f: parent:node_ID -> any -> unit) parent id =
710 711
    let d = get_server_data () in
    let ses = d.cont.controller_session in
712 713
    f ~parent (APn id);
    let nid = node_ID_from_pn id in
Clément Fumex's avatar
Clément Fumex committed
714
    List.iter
715
      (fun trans_id -> iter_subtree_from_trans f nid trans_id)
Clément Fumex's avatar
Clément Fumex committed
716
      (get_transformations ses id);
717
    iter_subtree_proof_attempt_from_goal f nid id
Clément Fumex's avatar
Clément Fumex committed
718

719 720
  and iter_subtree_from_trans
    (f: parent:node_ID -> any -> unit) parent trans_id =
721 722
    let d = get_server_data () in
    let ses = d.cont.controller_session in
723 724
    f ~parent (ATn trans_id);
    let nid = node_ID_from_tn trans_id in
Clément Fumex's avatar
Clément Fumex committed
725
    List.iter
726
      (fun goal_id -> (iter_subtree_from_goal f nid goal_id))
Sylvain Dailler's avatar
Sylvain Dailler committed
727
      (get_sub_tasks ses trans_id)
Clément Fumex's avatar
Clément Fumex committed
728

729 730 731 732 733 734 735 736 737 738 739 740 741 742 743
  let iter_subtree_from_theory
    (f: parent:node_ID -> any -> unit) parent theory_id =
    f ~parent (ATh theory_id);
    let nid = node_ID_from_th theory_id in
    List.iter (iter_subtree_from_goal f nid)
               (theory_goals theory_id)

  let iter_subtree_from_file
    (f: parent:node_ID -> any -> unit) parent file =
    f ~parent (AFile file);
    let nid = node_ID_from_file file in
    List.iter (iter_subtree_from_theory f nid)
      file.file_theories

  let iter_the_files (f: parent:node_ID -> any -> unit) parent : unit =
744 745
    let d = get_server_data () in
    let ses = d.cont.controller_session in
Clément Fumex's avatar
Clément Fumex committed
746 747 748
    let files = get_files ses in
    Stdlib.Hstr.iter
      (fun _ file ->
749
        iter_subtree_from_file f parent file)
Sylvain Dailler's avatar
Sylvain Dailler committed
750
      files
Clément Fumex's avatar
Clément Fumex committed
751

Sylvain Dailler's avatar
Sylvain Dailler committed
752 753 754 755
  (**********************************)
  (* Initialization of session tree *)
  (**********************************)

756 757
  let _init_the_tree (): unit =
    let f ~parent node_id = ignore (new_node ~parent node_id) in
Sylvain Dailler's avatar
Sylvain Dailler committed
758
    iter_the_files f root_node
759 760

  let init_and_send_subtree_from_trans parent trans_id : unit =
Clément Fumex's avatar
Clément Fumex committed
761 762
    iter_subtree_from_trans
      (fun ~parent id -> ignore (new_node ~parent id)) parent trans_id
763

Sylvain Dailler's avatar
Sylvain Dailler committed
764 765
  let init_and_send_file f =
    iter_subtree_from_file (fun ~parent id -> ignore (new_node ~parent id))
Sylvain Dailler's avatar
Sylvain Dailler committed
766
      root_node f
Sylvain Dailler's avatar
Sylvain Dailler committed
767

768
  let init_and_send_the_tree (): unit =
Sylvain Dailler's avatar
Sylvain Dailler committed
769
    iter_the_files (fun ~parent id -> ignore (new_node ~parent id)) root_node
770 771 772 773

  let resend_the_tree (): unit =
    let send_node ~parent any =
      let node_id = node_ID_from_any any in
774 775
      let node_name = get_node_name any in
      let node_type = get_node_type any in
776
      let node_detached = get_node_detached any in
777 778
      P.notify (New_node (node_id, parent, node_type, node_name, node_detached));
      get_node_proved node_id any in
Sylvain Dailler's avatar
Sylvain Dailler committed
779
    iter_the_files send_node root_node
780

781

Clément Fumex's avatar
Clément Fumex committed
782
  (* -- send the task -- *)
783 784
  let task_of_id d id =
    let task = get_task d.cont.controller_session id in
785
    let tables = get_table d.cont.controller_session id in
786 787
    (* This function also send source locations associated to the task *)
    let loc_color_list = get_locations task in
788 789
    Pp.string_of
      (Driver.print_task ~cntexample:false ?name_table:tables d.task_driver)
790
      task, loc_color_list
791

Clément Fumex's avatar
Clément Fumex committed
792
  let send_task nid =
793
    let d = get_server_data () in
Clément Fumex's avatar
Clément Fumex committed
794 795
    match any_from_node_ID nid with
    | APn id ->
796 797
       let s, list_loc = task_of_id d id in
       P.notify (Task (nid, s, list_loc))
798
    | ATh t ->
799
       P.notify (Task (nid, "Theory " ^ (theory_name t).Ident.id_string, []))
800
    | APa pid ->
801 802 803
       let pa = get_proof_attempt_node  d.cont.controller_session pid in
       let parid = pa.parent in
       let name = Pp.string_of Whyconf.print_prover pa.prover in
804 805
       let s, list_loc = task_of_id d parid in
       P.notify (Task (nid,s ^ "\n====================> Prover: " ^ name ^ "\n", list_loc))
806
    | AFile f ->
807
       P.notify (Task (nid, "File " ^ f.file_name, []))
808 809 810
    | ATn tid ->
       let name = get_transf_name d.cont.controller_session tid in
       let args = get_transf_args d.cont.controller_session tid in
811
       let parid = get_trans_parent d.cont.controller_session tid in
812 813
       let s, list_loc = task_of_id d parid in
       P.notify (Task (nid, s ^ "\n====================> Transformation: " ^ String.concat " " (name :: args) ^ "\n", list_loc))
814

Sylvain Dailler's avatar
Sylvain Dailler committed
815 816 817 818 819 820 821 822 823 824 825 826
  (* -------------------- *)

  (* Add a file into the session when (Add_file_req f) is sent *)
  (* Note that f is the path from execution directory to the file and fn is the
     path from the session directory to the file. *)
  let add_file_to_session cont f =
    let fn = Sysutil.relativize_filename
      (Session_itp.get_dir cont.controller_session) f in
    let files = get_files cont.controller_session in
    if (not (Stdlib.Hstr.mem files fn)) then
      if (Sys.file_exists f) then
      begin
827 828 829 830
        let b = add_file cont f in
        if b then
          let file = Stdlib.Hstr.find files fn in
          init_and_send_file file
Sylvain Dailler's avatar
Sylvain Dailler committed
831 832
      end
      else
MARCHE Claude's avatar
MARCHE Claude committed
833
        P.notify (Message (Open_File_Error ("File not found: " ^ f)))
834
    else
Sylvain Dailler's avatar
Sylvain Dailler committed
835
      P.notify (Message (Open_File_Error ("File already in session: " ^ fn)))
836 837


838 839 840 841 842 843
  (* ------------ init controller ------------ *)

  (* Init cont on file or directory. It is called only when an
     Open_session_req is requested *)
  let init_cont f =
    let d = get_server_data () in
844 845
    let config = d.cont.controller_config in
    let prover_list = get_prover_list config in
846 847
    let transformation_list = List.map fst (list_transforms ()) in
    let strategies_list =
848
      let l = strategies d.cont.controller_env config loaded_strategies in
849 850 851 852 853 854 855 856
      List.map (fun (a,_,_,_) -> a) l
    in
    let infos =
      {
        provers = prover_list;
        transformations = transformation_list;
        strategies = strategies_list;
        commands =
857
          Hstr.fold (fun c _ acc -> c :: acc) commands_table []
858 859
      }
    in
860 861 862 863 864 865 866 867 868 869 870 871 872 873
    match cont_from_session ~notify:P.notify d.cont f with
    | Some false ->
      begin
        add_file_to_session d.cont f;
        P.notify (Initialized infos);
        true
      end
    | Some true ->
        P.notify (Initialized infos);
        true
    | None ->
        (* Even if it fails we want to load source files *)
        load_files_session ();
        false
874

Clément Fumex's avatar
Clément Fumex committed
875 876 877 878 879
  (* ----------------- Schedule proof attempt -------------------- *)

  (* Callback of a proof_attempt *)
  let callback_update_tree_proof cont panid pa_status =
    let ses = cont.controller_session in
Clément Fumex's avatar
Clément Fumex committed
880
    begin match pa_status with
Clément Fumex's avatar
Clément Fumex committed
881 882 883 884 885 886 887 888 889 890
    | Scheduled ->
      begin
        try
          ignore (node_ID_from_pan panid)
        (* TODO: do we notify here ? *)
        with Not_found ->
          let parent_id = get_proof_attempt_parent ses panid in
          let parent = node_ID_from_pn parent_id in
          ignore (new_node ~parent (APa panid))
      end
891
    | _  -> () (* TODO ? status like Uninstalled should not generate a Notification *)
Clément Fumex's avatar
Clément Fumex committed
892
    end;
893 894 895
    let limit = (get_proof_attempt_node cont.controller_session panid).limit in
    let new_status = Proof_status_change (pa_status, false, limit) in
    P.notify (Node_change (node_ID_from_pan panid, new_status))
Clément Fumex's avatar
Clément Fumex committed
896

897 898
  let notify_change_proved c x =
    try
899
      let node_ID = node_ID_from_any x in
900 901 902 903 904 905 906
      let b = any_proved c x in
      P.notify (Node_change (node_ID, Proved b));
      match x with
      | APa pa ->
         let obs = (get_proof_attempt_node c.controller_session pa).proof_obsolete in
         P.notify (Node_change (node_ID, Obsolete obs))
      | _ -> ()
907 908
    with Not_found -> ()

909
  let schedule_proof_attempt ~counterexmp nid (p: Whyconf.config_prover) limit =
910
    let d = get_server_data () in
Clément Fumex's avatar
Clément Fumex committed
911
    let prover = p.Whyconf.prover in
912
    let callback = callback_update_tree_proof d.cont in
913
    let unproven_goals = unproven_goals_below_id d.cont (any_from_node_ID nid) in
914
    List.iter (fun id -> C.schedule_proof_attempt d.cont id prover ~counterexmp
915
                ~limit ~callback ~notification:(notify_change_proved d.cont))
916
      unproven_goals
Clément Fumex's avatar
Clément Fumex committed
917 918 919 920 921

  (* ----------------- Schedule transformation -------------------- *)

  (* Callback of a transformation *)
  let callback_update_tree_transform status =
922
    let d = get_server_data () in
Clément Fumex's avatar
Clément Fumex committed
923 924
    match status with
    | TSdone trans_id ->
925
      let ses = d.cont.controller_session in
Clément Fumex's avatar
Clément Fumex committed
926 927
      let id = get_trans_parent ses trans_id in
      let nid = node_ID_from_pn id in
928
      init_and_send_subtree_from_trans nid trans_id
Clément Fumex's avatar
Clément Fumex committed
929 930
    | TSfailed (id, e) ->
      let msg =
931
        Pp.sprintf "%a" (get_exception_message d.cont.controller_session id) e
Clément Fumex's avatar
Clément Fumex committed
932
      in
Sylvain Dailler's avatar
Sylvain Dailler committed
933
      P.notify (Message (Transf_error (node_ID_from_pn id, msg)))
Clément Fumex's avatar
Clément Fumex committed
934 935 936
    | _ -> ()

  let rec apply_transform nid t args =
937
    let d = get_server_data () in
Clément Fumex's avatar
Clément Fumex committed
938 939 940
    match any_from_node_ID nid with
    | APn id ->
      let callback = callback_update_tree_transform in
941
      C.schedule_transformation d.cont id t args ~callback ~notification:(notify_change_proved d.cont)
Clément Fumex's avatar
Clément Fumex committed
942
    | APa panid ->
943
      let parent_id = get_proof_attempt_parent d.cont.controller_session panid in
Clément Fumex's avatar
Clément Fumex committed
944 945 946 947 948 949 950 951
      let parent = node_ID_from_pn parent_id in
      apply_transform parent t args
    | ATn _ | AFile _ | ATh _ ->
      (* TODO: propagate trans to all subgoals, just the first one, do nothing ... ?  *)
      ()

  (* ----------------- run strategy -------------------- *)

MARCHE Claude's avatar
MARCHE Claude committed
952 953
  let debug_strat = Debug.register_flag "strategy_exec" ~desc:"Trace strategies execution"

954
  let run_strategy_on_task ~counterexmp nid s =
955
    let d = get_server_data () in
956
    let unproven_goals = unproven_goals_below_id d.cont (any_from_node_ID nid) in
957
    let l = strategies d.cont.controller_env d.cont.controller_config loaded_strategies in
958 959 960
    let st = List.filter (fun (_,c,_,_) -> c=s) l in
    match st with
    | [(n,_,_,st)] ->
MARCHE Claude's avatar
MARCHE Claude committed
961
        Debug.dprintf debug_strat "[strategy_exec] running strategy '%s'@." n;
962
       let callback sts =
MARCHE Claude's avatar
MARCHE Claude committed
963
         Debug.dprintf debug_strat "[strategy_exec] strategy status: %a@." print_strategy_status sts
964 965 966 967
       in
       let callback_pa = callback_update_tree_proof d.cont in
       let callback_tr st = callback_update_tree_transform st in
       List.iter (fun id ->
968 969
                  C.run_strategy_on_goal d.cont id st ~counterexmp
                    ~callback_pa ~callback_tr ~callback ~notification:(notify_change_proved d.cont))
970
                 unproven_goals
MARCHE Claude's avatar
MARCHE Claude committed
971
    | _ ->  Debug.dprintf debug_strat "[strategy_exec] strategy '%s' not found@." s
Clément Fumex's avatar
Clément Fumex committed
972

973 974 975 976 977 978 979 980

  (* ----------------- Clean session -------------------- *)
  let clean_session () =
    let d = get_server_data () in
    let remove x =
      let nid = node_ID_from_any x in
      remove_any_node_ID x;
      P.notify (Remove nid) in
MARCHE Claude's avatar
MARCHE Claude committed
981
    C.clean_session d.cont ~remove
982 983


Sylvain Dailler's avatar
Sylvain Dailler committed
984 985
  (* ----------------- Save session --------------------- *)
  let save_session () =
986 987
    let d = get_server_data () in
    Session_itp.save_session d.cont.controller_session;
Sylvain Dailler's avatar
Sylvain Dailler committed
988 989 990 991
    P.notify Saved

  (* ----------------- Reload session ------------------- *)
  let clear_tables () : unit =
992 993
    reset ();
    Hint.clear model_any;
Sylvain Dailler's avatar
Sylvain Dailler committed
994 995 996 997 998 999 1000
    Hpan.clear pan_to_node_ID;
    Hpn.clear pn_to_node_ID;
    Htn.clear tn_to_node_ID;
    Ident.Hid.clear th_to_node_ID;
    Hstr.clear file_to_node_ID

  let reload_session () : unit =
1001
    let d = get_server_data () in
Sylvain Dailler's avatar
Sylvain Dailler committed
1002
    clear_tables ();
1003