more thorough cleanup, e.g. before ML_Heap.save;
(* Title: Pure/System/isabelle_process.ML
Author: Makarius
Isabelle process wrapper.
*)
signature ISABELLE_PROCESS =
sig
val is_active: unit -> bool
exception STOP of int
val protocol_command: string -> (string list -> unit) -> unit
val reset_tracing: Document_ID.exec -> unit
val crashes: exn list Synchronized.var
val init_options: unit -> unit
val init_options_interactive: unit -> unit
val init: unit -> unit
val init_build: unit -> unit
end;
structure Isabelle_Process: ISABELLE_PROCESS =
struct
(* print mode *)
val isabelle_processN = "isabelle_process";
fun is_active () = Print_Mode.print_mode_active isabelle_processN;
val _ = Output.add_mode isabelle_processN Output.default_output Output.default_escape;
val _ = Markup.add_mode isabelle_processN YXML.output_markup;
val protocol_modes1 = [Syntax_Trans.no_bracketsN, Syntax_Trans.no_type_bracketsN];
val protocol_modes2 = [isabelle_processN, Pretty.symbolicN];
(* protocol commands *)
exception STOP of int;
val is_protocol_exn = fn STOP _ => true | _ => false;
local
val commands =
Synchronized.var "Isabelle_Process.commands"
(Symtab.empty: (string list -> unit) Symtab.table);
in
fun protocol_command name cmd =
Synchronized.change commands (fn cmds =>
(if not (Symtab.defined cmds name) then ()
else warning ("Redefining Isabelle protocol command " ^ quote name);
Symtab.update (name, cmd) cmds));
fun run_command name args =
(case Symtab.lookup (Synchronized.value commands) name of
NONE => error ("Undefined Isabelle protocol command " ^ quote name)
| SOME cmd =>
(Runtime.exn_trace_system (fn () => cmd args)
handle exn =>
if is_protocol_exn exn then Exn.reraise exn
else error ("Isabelle protocol command failure: " ^ quote name)));
end;
(* restricted tracing messages *)
val tracing_messages =
Synchronized.var "tracing_messages" (Inttab.empty: int Inttab.table);
fun reset_tracing exec_id =
Synchronized.change tracing_messages (Inttab.delete_safe exec_id);
fun update_tracing () =
(case Position.parse_id (Position.thread_data ()) of
NONE => ()
| SOME exec_id =>
let
val ok =
Synchronized.change_result tracing_messages (fn tab =>
let
val n = the_default 0 (Inttab.lookup tab exec_id) + 1;
val limit = Options.default_int "editor_tracing_messages";
val ok = limit <= 0 orelse n <= limit;
in (ok, Inttab.update (exec_id, n) tab) end);
in
if ok then ()
else
let
val (text, promise) = Active.dialog_text ();
val _ =
writeln ("Tracing paused. " ^ text "Stop" ^ ", or continue with next " ^
text "100" ^ ", " ^ text "1000" ^ ", " ^ text "10000" ^ " messages?")
val m = Value.parse_int (Future.join promise)
handle Fail _ => error "Stopped";
in
Synchronized.change tracing_messages
(Inttab.map_default (exec_id, 0) (fn k => k - m))
end
end);
(* init protocol -- uninterruptible *)
val crashes = Synchronized.var "Isabelle_Process.crashes" ([]: exn list);
local
fun recover crash =
(Synchronized.change crashes (cons crash);
Output.physical_stderr
"Recovered from Isabelle process crash -- see also Isabelle_Process.crashes\n");
in
fun init_protocol modes = Thread_Attributes.uninterruptible (fn _ => fn (address, password) =>
let
val _ = SHA1.test_samples ()
handle exn as Fail msg => (Output.physical_stderr (msg ^ "\n"); Exn.reraise exn);
val _ = Output.physical_stderr Symbol.STX;
(* streams *)
val (in_stream, out_stream) = Socket_IO.open_streams address;
val _ = Byte_Message.write_line out_stream password;
val _ = TextIO.StreamIO.setBufferMode (TextIO.getOutstream TextIO.stdOut, IO.LINE_BUF);
val _ = TextIO.StreamIO.setBufferMode (TextIO.getOutstream TextIO.stdErr, IO.LINE_BUF);
val _ = BinIO.StreamIO.setBufferMode (BinIO.getOutstream out_stream, IO.BLOCK_BUF);
(* messages *)
val msg_channel = Message_Channel.make out_stream;
fun message name props body =
Message_Channel.send msg_channel (Message_Channel.message name props body);
fun standard_message props name ss =
if forall (fn s => s = "") ss then ()
else
let
val props' =
(case (Properties.defined props Markup.idN, Position.get_id (Position.thread_data ())) of
(false, SOME id') => props @ [(Markup.idN, id')]
| _ => props);
in message name props' (XML.blob ss) end;
fun report_message ss =
if Context_Position.pide_reports ()
then standard_message [] Markup.reportN ss else ();
val serial_props = Markup.serial_properties o serial;
val message_context =
Unsynchronized.setmp Private_Output.status_fn (standard_message [] Markup.statusN) #>
Unsynchronized.setmp Private_Output.report_fn report_message #>
Unsynchronized.setmp Private_Output.result_fn
(fn props => fn s => standard_message (props @ serial_props ()) Markup.resultN s) #>
Unsynchronized.setmp Private_Output.writeln_fn
(fn s => standard_message (serial_props ()) Markup.writelnN s) #>
Unsynchronized.setmp Private_Output.state_fn
(fn s => standard_message (serial_props ()) Markup.stateN s) #>
Unsynchronized.setmp Private_Output.information_fn
(fn s => standard_message (serial_props ()) Markup.informationN s) #>
Unsynchronized.setmp Private_Output.tracing_fn
(fn s => (update_tracing (); standard_message (serial_props ()) Markup.tracingN s)) #>
Unsynchronized.setmp Private_Output.warning_fn
(fn s => standard_message (serial_props ()) Markup.warningN s) #>
Unsynchronized.setmp Private_Output.legacy_fn
(fn s => standard_message (serial_props ()) Markup.legacyN s) #>
Unsynchronized.setmp Private_Output.error_message_fn
(fn (i, s) => standard_message (Markup.serial_properties i) Markup.errorN s) #>
Unsynchronized.setmp Private_Output.system_message_fn
(fn ss => message Markup.systemN [] (XML.blob ss)) #>
Unsynchronized.setmp Private_Output.protocol_message_fn
(fn props => fn body => message Markup.protocolN props body) #>
Unsynchronized.setmp print_mode
((! print_mode @ #1 modes) |> fold (update op =) (#2 modes));
(* protocol *)
fun protocol_loop () =
let
val _ =
(case Byte_Message.read_message in_stream of
NONE => raise STOP 0
| SOME [] => Output.system_message "Isabelle process: no input"
| SOME (name :: args) => run_command name args)
handle exn =>
if is_protocol_exn exn then Exn.reraise exn
else (Runtime.exn_system_message exn handle crash => recover crash);
in protocol_loop () end;
fun protocol () =
(Session.init_protocol_handlers ();
message Markup.initN [] [XML.Text (Session.welcome ())];
protocol_loop ());
val result = Exn.capture (message_context protocol) ();
(* shutdown *)
val _ = Future.shutdown ();
val _ = Execution.reset ();
val _ = Message_Channel.shutdown msg_channel;
val _ = BinIO.closeIn in_stream;
val _ = BinIO.closeOut out_stream;
val _ = Options.reset_default ();
in
(case result of
Exn.Exn (STOP rc) => if rc = 0 then () else exit rc
| _ => Exn.release result)
end);
end;
(* init options *)
fun init_options () =
(ML_Print_Depth.set_print_depth (Options.default_int "ML_print_depth");
Future.ML_statistics := Options.default_bool "ML_statistics";
Multithreading.trace := Options.default_int "threads_trace";
Multithreading.max_threads_update (Options.default_int "threads");
Multithreading.parallel_proofs := Options.default_int "parallel_proofs";
if Options.default_bool "export_standard_proofs" then Proofterm.proofs := 2 else ();
let val proofs = Options.default_int "record_proofs"
in if proofs < 0 then () else Proofterm.proofs := proofs end;
Printer.show_markup_default := false);
fun init_options_interactive () =
(init_options ();
Multithreading.parallel_proofs := (if Options.default_int "parallel_proofs" > 0 then 3 else 0);
Printer.show_markup_default := true);
(* generic init *)
fun init_modes modes =
let
val address = Options.default_string \<^system_option>\<open>system_channel_address\<close>;
val password = Options.default_string \<^system_option>\<open>system_channel_password\<close>;
in
if address <> "" andalso password <> ""
then init_protocol modes (address, password)
else init_options ()
end;
fun init () = init_modes (protocol_modes1, protocol_modes2);
fun init_build () = init_modes ([], protocol_modes2);
end;