src/Pure/PIDE/session.scala
author wenzelm
Mon, 05 May 2014 15:17:07 +0200
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parent 56799 00b13fb87b3a
child 57651 10df45dd14da
permissions -rw-r--r--
support print operations as asynchronous query;
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/*  Title:      Pure/PIDE/session.scala
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    Author:     Makarius
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    Options:    :folding=explicit:collapseFolds=1:
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PIDE editor session, potentially with running prover process.
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*/
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package isabelle
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import scala.collection.immutable.Queue
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object Session
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{
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  /* outlets */
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  object Consumer
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  {
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    def apply[A](name: String)(consume: A => Unit): Consumer[A] =
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      new Consumer[A](name, consume)
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  }
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  final class Consumer[-A] private(val name: String, val consume: A => Unit)
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  class Outlet[A](dispatcher: Consumer_Thread[() => Unit])
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  {
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    private val consumers = Synchronized(List.empty[Consumer[A]])
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    def += (c: Consumer[A]) { consumers.change(Library.update(c)) }
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    def -= (c: Consumer[A]) { consumers.change(Library.remove(c)) }
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    def post(a: A)
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    {
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      for (c <- consumers.value.iterator) {
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        dispatcher.send(() =>
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          try { c.consume(a) }
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          catch {
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            case exn: Throwable =>
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              Output.error_message("Consumer failed: " + quote(c.name) + "\n" + Exn.message(exn))
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          })
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      }
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    }
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  }
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  /* change */
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  sealed case class Change(
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    previous: Document.Version,
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    doc_blobs: Document.Blobs,
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    syntax_changed: Boolean,
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    deps_changed: Boolean,
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    doc_edits: List[Document.Edit_Command],
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    version: Document.Version)
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  /* events */
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  //{{{
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  case class Statistics(props: Properties.T)
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  case class Global_Options(options: Options)
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  case object Caret_Focus
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  case class Raw_Edits(doc_blobs: Document.Blobs, edits: List[Document.Edit_Text])
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  case class Dialog_Result(id: Document_ID.Generic, serial: Long, result: String)
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  case class Commands_Changed(
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    assignment: Boolean, nodes: Set[Document.Node.Name], commands: Set[Command])
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  sealed abstract class Phase
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  case object Inactive extends Phase
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  case object Startup extends Phase  // transient
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  case object Failed extends Phase
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  case object Ready extends Phase
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  case object Shutdown extends Phase  // transient
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  //}}}
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  /* syslog */
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  private[Session] class Syslog(limit: Int)
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  {
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    private var queue = Queue.empty[XML.Elem]
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    private var length = 0
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    def += (msg: XML.Elem): Unit = synchronized {
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      queue = queue.enqueue(msg)
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      length += 1
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      if (length > limit) queue = queue.dequeue._2
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    }
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    def content: String = synchronized {
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      cat_lines(queue.iterator.map(XML.content)) +
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      (if (length > limit) "\n(A total of " + length + " messages...)" else "")
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    }
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  }
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  /* protocol handlers */
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  abstract class Protocol_Handler
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  {
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    def start(prover: Prover): Unit = {}
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    def stop(prover: Prover): Unit = {}
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    val functions: Map[String, (Prover, Prover.Protocol_Output) => Boolean]
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  }
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  class Protocol_Handlers(
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    handlers: Map[String, Session.Protocol_Handler] = Map.empty,
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    functions: Map[String, Prover.Protocol_Output => Boolean] = Map.empty)
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  {
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    def get(name: String): Option[Protocol_Handler] = handlers.get(name)
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    def add(prover: Prover, name: String): Protocol_Handlers =
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    {
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      val (handlers1, functions1) =
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        handlers.get(name) match {
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          case Some(old_handler) =>
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            Output.warning("Redefining protocol handler: " + name)
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            old_handler.stop(prover)
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            (handlers - name, functions -- old_handler.functions.keys)
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          case None => (handlers, functions)
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        }
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      val (handlers2, functions2) =
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        try {
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          val new_handler = Class.forName(name).newInstance.asInstanceOf[Protocol_Handler]
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          new_handler.start(prover)
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          val new_functions =
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            for ((a, f) <- new_handler.functions.toList) yield
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              (a, (msg: Prover.Protocol_Output) => f(prover, msg))
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          val dups = for ((a, _) <- new_functions if functions1.isDefinedAt(a)) yield a
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          if (!dups.isEmpty) error("Duplicate protocol functions: " + commas_quote(dups))
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          (handlers1 + (name -> new_handler), functions1 ++ new_functions)
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        }
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        catch {
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          case exn: Throwable =>
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            Output.error_message(
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              "Failed to initialize protocol handler: " + quote(name) + "\n" + Exn.message(exn))
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            (handlers1, functions1)
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        }
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      new Protocol_Handlers(handlers2, functions2)
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    }
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    def invoke(msg: Prover.Protocol_Output): Boolean =
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      msg.properties match {
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        case Markup.Function(a) if functions.isDefinedAt(a) =>
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          try { functions(a)(msg) }
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          catch {
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            case exn: Throwable =>
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              Output.error_message(
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                "Failed invocation of protocol function: " + quote(a) + "\n" + Exn.message(exn))
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            false
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          }
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        case _ => false
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      }
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    def stop(prover: Prover): Protocol_Handlers =
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    {
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      for ((_, handler) <- handlers) handler.stop(prover)
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      new Protocol_Handlers()
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    }
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  }
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}
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class Session(val resources: Resources)
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{
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  /* global flags */
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  @volatile var timing: Boolean = false
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  @volatile var verbose: Boolean = false
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  /* tuning parameters */
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  def output_delay: Time = Time.seconds(0.1)  // prover output (markup, common messages)
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  def message_delay: Time = Time.seconds(0.1)  // prover input/output messages
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  def prune_delay: Time = Time.seconds(60.0)  // prune history -- delete old versions
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  def prune_size: Int = 0  // size of retained history
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  def syslog_limit: Int = 100
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  def reparse_limit: Int = 0
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4f9de312cc23 Session: predefined real time parameters;
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  /* outlets */
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  private val dispatcher =
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    Consumer_Thread.fork[() => Unit]("Session.dispatcher", daemon = true) { case e => e(); true }
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  val statistics = new Session.Outlet[Session.Statistics](dispatcher)
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  val global_options = new Session.Outlet[Session.Global_Options](dispatcher)
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  val caret_focus = new Session.Outlet[Session.Caret_Focus.type](dispatcher)
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  val raw_edits = new Session.Outlet[Session.Raw_Edits](dispatcher)
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  val commands_changed = new Session.Outlet[Session.Commands_Changed](dispatcher)
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  val phase_changed = new Session.Outlet[Session.Phase](dispatcher)
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  val syslog_messages = new Session.Outlet[Prover.Output](dispatcher)
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  val raw_output_messages = new Session.Outlet[Prover.Output](dispatcher)
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  val all_messages = new Session.Outlet[Prover.Message](dispatcher)  // potential bottle-neck
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  val trace_events = new Session.Outlet[Simplifier_Trace.Event.type](dispatcher)
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  /** main protocol manager **/
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  /* internal messages */
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  private case class Start(name: String, args: List[String])
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  private case object Stop
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  private case class Cancel_Exec(exec_id: Document_ID.Exec)
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  private case class Protocol_Command(name: String, args: List[String])
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  private case class Update_Options(options: Options)
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  private case object Prune_History
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  /* global state */
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  private val syslog = new Session.Syslog(syslog_limit)
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  def syslog_content(): String = syslog.content
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  @volatile private var _phase: Session.Phase = Session.Inactive
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  private def phase_=(new_phase: Session.Phase)
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  {
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    _phase = new_phase
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    phase_changed.post(new_phase)
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  }
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  def phase = _phase
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  def is_ready: Boolean = phase == Session.Ready
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  private val global_state = Synchronized(Document.State.init)
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  def current_state(): Document.State = global_state.value
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  def recent_syntax(): Prover.Syntax =
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  {
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    val version = current_state().recent_finished.version.get_finished
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    version.syntax getOrElse resources.base_syntax
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  }
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  /* protocol handlers */
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  @volatile private var _protocol_handlers = new Session.Protocol_Handlers()
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  def protocol_handler(name: String): Option[Session.Protocol_Handler] =
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    _protocol_handlers.get(name)
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  /* theory files */
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  def header_edit(name: Document.Node.Name, header: Document.Node.Header): Document.Edit_Text =
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  {
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    val header1 =
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      if (resources.loaded_theories(name.theory))
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        header.error("Cannot update finished theory " + quote(name.theory))
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      else header
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    (name, Document.Node.Deps(header1))
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  }
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  /* pipelined change parsing */
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  private case class Text_Edits(
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    previous: Future[Document.Version],
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    doc_blobs: Document.Blobs,
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    text_edits: List[Document.Edit_Text],
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    version_result: Promise[Document.Version])
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  private val change_parser = Consumer_Thread.fork[Text_Edits]("change_parser", daemon = true)
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  {
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    case Text_Edits(previous, doc_blobs, text_edits, version_result) =>
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      val prev = previous.get_finished
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      val change =
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        Timing.timeit("parse_change", timing) {
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          resources.parse_change(reparse_limit, prev, doc_blobs, text_edits)
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        }
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      version_result.fulfill(change.version)
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      manager.send(change)
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      true
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  }
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  /* buffered changes */
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  private object change_buffer
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  {
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    private var assignment: Boolean = false
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    private var nodes: Set[Document.Node.Name] = Set.empty
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    private var commands: Set[Command] = Set.empty
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    def flush(): Unit = synchronized {
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      if (assignment || !nodes.isEmpty || !commands.isEmpty)
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        commands_changed.post(Session.Commands_Changed(assignment, nodes, commands))
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      assignment = false
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      nodes = Set.empty
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      commands = Set.empty
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    }
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    private val delay_flush = Simple_Thread.delay_first(output_delay) { flush() }
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    def invoke(assign: Boolean, cmds: List[Command]): Unit = synchronized {
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      assignment |= assign
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      for (command <- cmds) {
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        nodes += command.node_name
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        commands += command
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   305
      }
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   306
      delay_flush.invoke()
56719
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diff changeset
   307
    }
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   308
80eb2192516a simplified change_buffer (again, see 937826d702d5): no thread, just timer, rely on asynchronous commands_changed.post;
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   309
    def shutdown()
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   310
    {
56771
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   311
      delay_flush.revoke()
56719
80eb2192516a simplified change_buffer (again, see 937826d702d5): no thread, just timer, rely on asynchronous commands_changed.post;
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   312
      flush()
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diff changeset
   313
    }
80eb2192516a simplified change_buffer (again, see 937826d702d5): no thread, just timer, rely on asynchronous commands_changed.post;
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diff changeset
   314
  }
80eb2192516a simplified change_buffer (again, see 937826d702d5): no thread, just timer, rely on asynchronous commands_changed.post;
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diff changeset
   315
80eb2192516a simplified change_buffer (again, see 937826d702d5): no thread, just timer, rely on asynchronous commands_changed.post;
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  /* postponed changes */
44733
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56706
f2f53f7046f4 converted main session manager to Consumer_Thread: messages need to be consumed immediately, postponed_changes replaces implicit actor mailbox scanning;
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   319
  private object postponed_changes
f2f53f7046f4 converted main session manager to Consumer_Thread: messages need to be consumed immediately, postponed_changes replaces implicit actor mailbox scanning;
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diff changeset
   320
  {
f2f53f7046f4 converted main session manager to Consumer_Thread: messages need to be consumed immediately, postponed_changes replaces implicit actor mailbox scanning;
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diff changeset
   321
    private var postponed: List[Session.Change] = Nil
f2f53f7046f4 converted main session manager to Consumer_Thread: messages need to be consumed immediately, postponed_changes replaces implicit actor mailbox scanning;
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   322
f2f53f7046f4 converted main session manager to Consumer_Thread: messages need to be consumed immediately, postponed_changes replaces implicit actor mailbox scanning;
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diff changeset
   323
    def store(change: Session.Change): Unit = synchronized { postponed ::= change }
56705
937826d702d5 simplified commands_changed_buffer (in contrast to a8331fb5c959): rely on better performance of Consumer_Thread/Mailbox and more direct Timer (like session_actor.receiver);
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diff changeset
   324
56706
f2f53f7046f4 converted main session manager to Consumer_Thread: messages need to be consumed immediately, postponed_changes replaces implicit actor mailbox scanning;
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diff changeset
   325
    def flush(): Unit = synchronized {
f2f53f7046f4 converted main session manager to Consumer_Thread: messages need to be consumed immediately, postponed_changes replaces implicit actor mailbox scanning;
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diff changeset
   326
      val state = global_state.value
f2f53f7046f4 converted main session manager to Consumer_Thread: messages need to be consumed immediately, postponed_changes replaces implicit actor mailbox scanning;
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diff changeset
   327
      val (assigned, unassigned) = postponed.partition(change => state.is_assigned(change.previous))
f2f53f7046f4 converted main session manager to Consumer_Thread: messages need to be consumed immediately, postponed_changes replaces implicit actor mailbox scanning;
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diff changeset
   328
      postponed = unassigned
f2f53f7046f4 converted main session manager to Consumer_Thread: messages need to be consumed immediately, postponed_changes replaces implicit actor mailbox scanning;
wenzelm
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diff changeset
   329
      assigned.reverseIterator.foreach(change => manager.send(change))
f2f53f7046f4 converted main session manager to Consumer_Thread: messages need to be consumed immediately, postponed_changes replaces implicit actor mailbox scanning;
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diff changeset
   330
    }
f2f53f7046f4 converted main session manager to Consumer_Thread: messages need to be consumed immediately, postponed_changes replaces implicit actor mailbox scanning;
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diff changeset
   331
  }
44733
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wenzelm
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diff changeset
   332
56706
f2f53f7046f4 converted main session manager to Consumer_Thread: messages need to be consumed immediately, postponed_changes replaces implicit actor mailbox scanning;
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diff changeset
   333
56793
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diff changeset
   334
  /* prover process */
d5ab6a8799ce more synchronized treatment of prover process, which might emit more messages before shutdown and requires manager to accept them;
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diff changeset
   335
d5ab6a8799ce more synchronized treatment of prover process, which might emit more messages before shutdown and requires manager to accept them;
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diff changeset
   336
  private object prover
d5ab6a8799ce more synchronized treatment of prover process, which might emit more messages before shutdown and requires manager to accept them;
wenzelm
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diff changeset
   337
  {
d5ab6a8799ce more synchronized treatment of prover process, which might emit more messages before shutdown and requires manager to accept them;
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diff changeset
   338
    private val variable = Synchronized(None: Option[Prover])
d5ab6a8799ce more synchronized treatment of prover process, which might emit more messages before shutdown and requires manager to accept them;
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diff changeset
   339
d5ab6a8799ce more synchronized treatment of prover process, which might emit more messages before shutdown and requires manager to accept them;
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diff changeset
   340
    def defined: Boolean = variable.value.isDefined
d5ab6a8799ce more synchronized treatment of prover process, which might emit more messages before shutdown and requires manager to accept them;
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diff changeset
   341
    def get: Prover = variable.value.get
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diff changeset
   342
    def set(p: Prover) { variable.change(_ => Some(p)) }
d5ab6a8799ce more synchronized treatment of prover process, which might emit more messages before shutdown and requires manager to accept them;
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diff changeset
   343
    def reset { variable.change(_ => None) }
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diff changeset
   344
    def await_reset() { variable.guarded_access({ case None => Some((), None) case _ => None }) }
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diff changeset
   345
  }
d5ab6a8799ce more synchronized treatment of prover process, which might emit more messages before shutdown and requires manager to accept them;
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diff changeset
   346
d5ab6a8799ce more synchronized treatment of prover process, which might emit more messages before shutdown and requires manager to accept them;
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diff changeset
   347
56706
f2f53f7046f4 converted main session manager to Consumer_Thread: messages need to be consumed immediately, postponed_changes replaces implicit actor mailbox scanning;
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   348
  /* manager thread */
44733
329320fc88df buffer prover messages to prevent overloading of session_actor input channel -- which is critical due to synchronous messages wrt. GUI thread;
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diff changeset
   349
56771
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diff changeset
   350
  private val delay_prune = Simple_Thread.delay_first(prune_delay) { manager.send(Prune_History) }
28d62a5b07e8 more systematic delay_first discipline for change_buffer and prune_history;
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diff changeset
   351
56706
f2f53f7046f4 converted main session manager to Consumer_Thread: messages need to be consumed immediately, postponed_changes replaces implicit actor mailbox scanning;
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diff changeset
   352
  private val manager: Consumer_Thread[Any] =
f2f53f7046f4 converted main session manager to Consumer_Thread: messages need to be consumed immediately, postponed_changes replaces implicit actor mailbox scanning;
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diff changeset
   353
  {
52649
f45ab3e8211b update_options with full update, e.g. required for re-assignment of Command.prints;
wenzelm
parents: 52563
diff changeset
   354
    /* raw edits */
f45ab3e8211b update_options with full update, e.g. required for re-assignment of Command.prints;
wenzelm
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diff changeset
   355
54521
744ea0025e11 clarified Document.Blobs environment vs. actual edits of auxiliary files;
wenzelm
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diff changeset
   356
    def handle_raw_edits(doc_blobs: Document.Blobs, edits: List[Document.Edit_Text])
52649
f45ab3e8211b update_options with full update, e.g. required for re-assignment of Command.prints;
wenzelm
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diff changeset
   357
    //{{{
f45ab3e8211b update_options with full update, e.g. required for re-assignment of Command.prints;
wenzelm
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diff changeset
   358
    {
56793
d5ab6a8799ce more synchronized treatment of prover process, which might emit more messages before shutdown and requires manager to accept them;
wenzelm
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diff changeset
   359
      require(prover.defined)
56712
c7cf653228ed more explicit checks;
wenzelm
parents: 56711
diff changeset
   360
52649
f45ab3e8211b update_options with full update, e.g. required for re-assignment of Command.prints;
wenzelm
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diff changeset
   361
      prover.get.discontinue_execution()
f45ab3e8211b update_options with full update, e.g. required for re-assignment of Command.prints;
wenzelm
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diff changeset
   362
56687
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wenzelm
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diff changeset
   363
      val previous = global_state.value.history.tip.version
52649
f45ab3e8211b update_options with full update, e.g. required for re-assignment of Command.prints;
wenzelm
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diff changeset
   364
      val version = Future.promise[Document.Version]
56711
ef3d00153e3b tuned signature;
wenzelm
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diff changeset
   365
      global_state.change(_.continue_history(previous, edits, version))
52649
f45ab3e8211b update_options with full update, e.g. required for re-assignment of Command.prints;
wenzelm
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diff changeset
   366
56715
52125652e82a clarified Session.Consumer, with Session.Outlet managed by dispatcher thread;
wenzelm
parents: 56713
diff changeset
   367
      raw_edits.post(Session.Raw_Edits(doc_blobs, edits))
56704
c2f0ddd14747 simplified -- prefer Consumer_Thread over Actor;
wenzelm
parents: 56691
diff changeset
   368
      change_parser.send(Text_Edits(previous, doc_blobs, edits, version))
52649
f45ab3e8211b update_options with full update, e.g. required for re-assignment of Command.prints;
wenzelm
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diff changeset
   369
    }
f45ab3e8211b update_options with full update, e.g. required for re-assignment of Command.prints;
wenzelm
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diff changeset
   370
    //}}}
f45ab3e8211b update_options with full update, e.g. required for re-assignment of Command.prints;
wenzelm
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diff changeset
   371
f45ab3e8211b update_options with full update, e.g. required for re-assignment of Command.prints;
wenzelm
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diff changeset
   372
43716
1d64662c1bfd tuned source structure;
wenzelm
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diff changeset
   373
    /* resulting changes */
34809
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wenzelm
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diff changeset
   374
56315
c20053f67093 tuned signature;
wenzelm
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diff changeset
   375
    def handle_change(change: Session.Change)
38221
e0f00f0945b4 misc tuning and clarification;
wenzelm
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diff changeset
   376
    //{{{
34809
0fed930f2992 misc tuning;
wenzelm
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diff changeset
   377
    {
56793
d5ab6a8799ce more synchronized treatment of prover process, which might emit more messages before shutdown and requires manager to accept them;
wenzelm
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diff changeset
   378
      require(prover.defined)
56712
c7cf653228ed more explicit checks;
wenzelm
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diff changeset
   379
44383
f99906c2a1d3 discontinued redundant Edit_Command_ID;
wenzelm
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diff changeset
   380
      def id_command(command: Command)
43720
wenzelm
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diff changeset
   381
      {
54519
5fed81762406 maintain blobs within document state: digest + text in ML, digest-only in Scala;
wenzelm
parents: 54443
diff changeset
   382
        for {
5fed81762406 maintain blobs within document state: digest + text in ML, digest-only in Scala;
wenzelm
parents: 54443
diff changeset
   383
          digest <- command.blobs_digests
56687
7fb98325722a tuned signature in accordance to ML version;
wenzelm
parents: 56671
diff changeset
   384
          if !global_state.value.defined_blob(digest)
54519
5fed81762406 maintain blobs within document state: digest + text in ML, digest-only in Scala;
wenzelm
parents: 54443
diff changeset
   385
        } {
56315
c20053f67093 tuned signature;
wenzelm
parents: 56210
diff changeset
   386
          change.doc_blobs.get(digest) match {
54519
5fed81762406 maintain blobs within document state: digest + text in ML, digest-only in Scala;
wenzelm
parents: 54443
diff changeset
   387
            case Some(blob) =>
56687
7fb98325722a tuned signature in accordance to ML version;
wenzelm
parents: 56671
diff changeset
   388
              global_state.change(_.define_blob(digest))
56335
8953d4cc060a store blob content within document node: aux. files that were once open are made persistent;
wenzelm
parents: 56316
diff changeset
   389
              prover.get.define_blob(digest, blob.bytes)
55783
da0513d95155 more formal Document.Blobs;
wenzelm
parents: 55618
diff changeset
   390
            case None =>
56782
433cf57550fa more systematic Isabelle output, like in classic Isabelle/ML (without markup);
wenzelm
parents: 56775
diff changeset
   391
              Output.error_message("Missing blob for SHA1 digest " + digest)
54519
5fed81762406 maintain blobs within document state: digest + text in ML, digest-only in Scala;
wenzelm
parents: 54443
diff changeset
   392
          }
5fed81762406 maintain blobs within document state: digest + text in ML, digest-only in Scala;
wenzelm
parents: 54443
diff changeset
   393
        }
5fed81762406 maintain blobs within document state: digest + text in ML, digest-only in Scala;
wenzelm
parents: 54443
diff changeset
   394
56687
7fb98325722a tuned signature in accordance to ML version;
wenzelm
parents: 56671
diff changeset
   395
        if (!global_state.value.defined_command(command.id)) {
7fb98325722a tuned signature in accordance to ML version;
wenzelm
parents: 56671
diff changeset
   396
          global_state.change(_.define_command(command))
44644
317e4962dd0f clarified define_command: store name as structural information;
wenzelm
parents: 44616
diff changeset
   397
          prover.get.define_command(command)
43720
wenzelm
parents: 43719
diff changeset
   398
        }
wenzelm
parents: 43719
diff changeset
   399
      }
56315
c20053f67093 tuned signature;
wenzelm
parents: 56210
diff changeset
   400
      change.doc_edits foreach {
44383
f99906c2a1d3 discontinued redundant Edit_Command_ID;
wenzelm
parents: 44298
diff changeset
   401
        case (_, edit) =>
f99906c2a1d3 discontinued redundant Edit_Command_ID;
wenzelm
parents: 44298
diff changeset
   402
          edit foreach { case (c1, c2) => c1 foreach id_command; c2 foreach id_command }
f99906c2a1d3 discontinued redundant Edit_Command_ID;
wenzelm
parents: 44298
diff changeset
   403
      }
43722
9b5dadb0c28d propagate header changes to prover process;
wenzelm
parents: 43721
diff changeset
   404
56687
7fb98325722a tuned signature in accordance to ML version;
wenzelm
parents: 56671
diff changeset
   405
      val assignment = global_state.value.the_assignment(change.previous).check_finished
7fb98325722a tuned signature in accordance to ML version;
wenzelm
parents: 56671
diff changeset
   406
      global_state.change(_.define_version(change.version, assignment))
56315
c20053f67093 tuned signature;
wenzelm
parents: 56210
diff changeset
   407
      prover.get.update(change.previous.id, change.version.id, change.doc_edits)
56316
b1cf8ddc2e04 propagate deps_changed, to resolve missing files without requiring jEdit events (e.g. buffer load/save);
wenzelm
parents: 56315
diff changeset
   408
      resources.commit(change)
34809
0fed930f2992 misc tuning;
wenzelm
parents: 34808
diff changeset
   409
    }
38221
e0f00f0945b4 misc tuning and clarification;
wenzelm
parents: 38150
diff changeset
   410
    //}}}
34809
0fed930f2992 misc tuning;
wenzelm
parents: 34808
diff changeset
   411
0fed930f2992 misc tuning;
wenzelm
parents: 34808
diff changeset
   412
46772
be21f050eda4 tuned signature -- emphasize Isabelle_Process Input vs. Output;
wenzelm
parents: 46771
diff changeset
   413
    /* prover output */
34809
0fed930f2992 misc tuning;
wenzelm
parents: 34808
diff changeset
   414
56385
76acce58aeab more general prover operations;
wenzelm
parents: 56335
diff changeset
   415
    def handle_output(output: Prover.Output)
38221
e0f00f0945b4 misc tuning and clarification;
wenzelm
parents: 38150
diff changeset
   416
    //{{{
34809
0fed930f2992 misc tuning;
wenzelm
parents: 34808
diff changeset
   417
    {
51662
3391a493f39a just one timing protocol function, with 3 implementations: TTY/PG, PIDE/document, build;
wenzelm
parents: 51083
diff changeset
   418
      def bad_output()
43716
1d64662c1bfd tuned source structure;
wenzelm
parents: 43697
diff changeset
   419
      {
1d64662c1bfd tuned source structure;
wenzelm
parents: 43697
diff changeset
   420
        if (verbose)
56782
433cf57550fa more systematic Isabelle output, like in classic Isabelle/ML (without markup);
wenzelm
parents: 56775
diff changeset
   421
          Output.warning("Ignoring bad prover output: " + output.message.toString)
43716
1d64662c1bfd tuned source structure;
wenzelm
parents: 43697
diff changeset
   422
      }
1d64662c1bfd tuned source structure;
wenzelm
parents: 43697
diff changeset
   423
52531
21f8e0e151f5 tuned signature;
wenzelm
parents: 52530
diff changeset
   424
      def accumulate(state_id: Document_ID.Generic, message: XML.Elem)
51662
3391a493f39a just one timing protocol function, with 3 implementations: TTY/PG, PIDE/document, build;
wenzelm
parents: 51083
diff changeset
   425
      {
3391a493f39a just one timing protocol function, with 3 implementations: TTY/PG, PIDE/document, build;
wenzelm
parents: 51083
diff changeset
   426
        try {
56687
7fb98325722a tuned signature in accordance to ML version;
wenzelm
parents: 56671
diff changeset
   427
          val st = global_state.change_result(_.accumulate(state_id, message))
56719
80eb2192516a simplified change_buffer (again, see 937826d702d5): no thread, just timer, rely on asynchronous commands_changed.post;
wenzelm
parents: 56715
diff changeset
   428
          change_buffer.invoke(false, List(st.command))
51662
3391a493f39a just one timing protocol function, with 3 implementations: TTY/PG, PIDE/document, build;
wenzelm
parents: 51083
diff changeset
   429
        }
3391a493f39a just one timing protocol function, with 3 implementations: TTY/PG, PIDE/document, build;
wenzelm
parents: 51083
diff changeset
   430
        catch {
3391a493f39a just one timing protocol function, with 3 implementations: TTY/PG, PIDE/document, build;
wenzelm
parents: 51083
diff changeset
   431
          case _: Document.State.Fail => bad_output()
3391a493f39a just one timing protocol function, with 3 implementations: TTY/PG, PIDE/document, build;
wenzelm
parents: 51083
diff changeset
   432
        }
3391a493f39a just one timing protocol function, with 3 implementations: TTY/PG, PIDE/document, build;
wenzelm
parents: 51083
diff changeset
   433
      }
3391a493f39a just one timing protocol function, with 3 implementations: TTY/PG, PIDE/document, build;
wenzelm
parents: 51083
diff changeset
   434
54442
c39972ddd672 more specific Protocol_Output: empty message.body, main content via bytes/text;
wenzelm
parents: 53054
diff changeset
   435
      output match {
56385
76acce58aeab more general prover operations;
wenzelm
parents: 56335
diff changeset
   436
        case msg: Prover.Protocol_Output =>
54442
c39972ddd672 more specific Protocol_Output: empty message.body, main content via bytes/text;
wenzelm
parents: 53054
diff changeset
   437
          val handled = _protocol_handlers.invoke(msg)
c39972ddd672 more specific Protocol_Output: empty message.body, main content via bytes/text;
wenzelm
parents: 53054
diff changeset
   438
          if (!handled) {
c39972ddd672 more specific Protocol_Output: empty message.body, main content via bytes/text;
wenzelm
parents: 53054
diff changeset
   439
            msg.properties match {
56793
d5ab6a8799ce more synchronized treatment of prover process, which might emit more messages before shutdown and requires manager to accept them;
wenzelm
parents: 56782
diff changeset
   440
              case Markup.Protocol_Handler(name) if prover.defined =>
54442
c39972ddd672 more specific Protocol_Output: empty message.body, main content via bytes/text;
wenzelm
parents: 53054
diff changeset
   441
                _protocol_handlers = _protocol_handlers.add(prover.get, name)
c39972ddd672 more specific Protocol_Output: empty message.body, main content via bytes/text;
wenzelm
parents: 53054
diff changeset
   442
56793
d5ab6a8799ce more synchronized treatment of prover process, which might emit more messages before shutdown and requires manager to accept them;
wenzelm
parents: 56782
diff changeset
   443
              case Protocol.Command_Timing(state_id, timing) if prover.defined =>
54442
c39972ddd672 more specific Protocol_Output: empty message.body, main content via bytes/text;
wenzelm
parents: 53054
diff changeset
   444
                val message = XML.elem(Markup.STATUS, List(XML.Elem(Markup.Timing(timing), Nil)))
c39972ddd672 more specific Protocol_Output: empty message.body, main content via bytes/text;
wenzelm
parents: 53054
diff changeset
   445
                accumulate(state_id, prover.get.xml_cache.elem(message))
46122
1e9ec1a44dfc prefer raw_message for protocol implementation;
wenzelm
parents: 46121
diff changeset
   446
54442
c39972ddd672 more specific Protocol_Output: empty message.body, main content via bytes/text;
wenzelm
parents: 53054
diff changeset
   447
              case Markup.Assign_Update =>
c39972ddd672 more specific Protocol_Output: empty message.body, main content via bytes/text;
wenzelm
parents: 53054
diff changeset
   448
                msg.text match {
c39972ddd672 more specific Protocol_Output: empty message.body, main content via bytes/text;
wenzelm
parents: 53054
diff changeset
   449
                  case Protocol.Assign_Update(id, update) =>
c39972ddd672 more specific Protocol_Output: empty message.body, main content via bytes/text;
wenzelm
parents: 53054
diff changeset
   450
                    try {
56687
7fb98325722a tuned signature in accordance to ML version;
wenzelm
parents: 56671
diff changeset
   451
                      val cmds = global_state.change_result(_.assign(id, update))
56719
80eb2192516a simplified change_buffer (again, see 937826d702d5): no thread, just timer, rely on asynchronous commands_changed.post;
wenzelm
parents: 56715
diff changeset
   452
                      change_buffer.invoke(true, cmds)
54442
c39972ddd672 more specific Protocol_Output: empty message.body, main content via bytes/text;
wenzelm
parents: 53054
diff changeset
   453
                    }
c39972ddd672 more specific Protocol_Output: empty message.body, main content via bytes/text;
wenzelm
parents: 53054
diff changeset
   454
                    catch { case _: Document.State.Fail => bad_output() }
56706
f2f53f7046f4 converted main session manager to Consumer_Thread: messages need to be consumed immediately, postponed_changes replaces implicit actor mailbox scanning;
wenzelm
parents: 56705
diff changeset
   455
                    postponed_changes.flush()
54442
c39972ddd672 more specific Protocol_Output: empty message.body, main content via bytes/text;
wenzelm
parents: 53054
diff changeset
   456
                  case _ => bad_output()
c39972ddd672 more specific Protocol_Output: empty message.body, main content via bytes/text;
wenzelm
parents: 53054
diff changeset
   457
                }
56771
28d62a5b07e8 more systematic delay_first discipline for change_buffer and prune_history;
wenzelm
parents: 56735
diff changeset
   458
                delay_prune.invoke()
46122
1e9ec1a44dfc prefer raw_message for protocol implementation;
wenzelm
parents: 46121
diff changeset
   459
54442
c39972ddd672 more specific Protocol_Output: empty message.body, main content via bytes/text;
wenzelm
parents: 53054
diff changeset
   460
              case Markup.Removed_Versions =>
c39972ddd672 more specific Protocol_Output: empty message.body, main content via bytes/text;
wenzelm
parents: 53054
diff changeset
   461
                msg.text match {
c39972ddd672 more specific Protocol_Output: empty message.body, main content via bytes/text;
wenzelm
parents: 53054
diff changeset
   462
                  case Protocol.Removed(removed) =>
c39972ddd672 more specific Protocol_Output: empty message.body, main content via bytes/text;
wenzelm
parents: 53054
diff changeset
   463
                    try {
56687
7fb98325722a tuned signature in accordance to ML version;
wenzelm
parents: 56671
diff changeset
   464
                      global_state.change(_.removed_versions(removed))
54442
c39972ddd672 more specific Protocol_Output: empty message.body, main content via bytes/text;
wenzelm
parents: 53054
diff changeset
   465
                    }
c39972ddd672 more specific Protocol_Output: empty message.body, main content via bytes/text;
wenzelm
parents: 53054
diff changeset
   466
                    catch { case _: Document.State.Fail => bad_output() }
c39972ddd672 more specific Protocol_Output: empty message.body, main content via bytes/text;
wenzelm
parents: 53054
diff changeset
   467
                  case _ => bad_output()
c39972ddd672 more specific Protocol_Output: empty message.body, main content via bytes/text;
wenzelm
parents: 53054
diff changeset
   468
                }
c39972ddd672 more specific Protocol_Output: empty message.body, main content via bytes/text;
wenzelm
parents: 53054
diff changeset
   469
c39972ddd672 more specific Protocol_Output: empty message.body, main content via bytes/text;
wenzelm
parents: 53054
diff changeset
   470
              case Markup.ML_Statistics(props) =>
56715
52125652e82a clarified Session.Consumer, with Session.Outlet managed by dispatcher thread;
wenzelm
parents: 56713
diff changeset
   471
                statistics.post(Session.Statistics(props))
54442
c39972ddd672 more specific Protocol_Output: empty message.body, main content via bytes/text;
wenzelm
parents: 53054
diff changeset
   472
c39972ddd672 more specific Protocol_Output: empty message.body, main content via bytes/text;
wenzelm
parents: 53054
diff changeset
   473
              case Markup.Task_Statistics(props) =>
c39972ddd672 more specific Protocol_Output: empty message.body, main content via bytes/text;
wenzelm
parents: 53054
diff changeset
   474
                // FIXME
52111
1fd184eaa310 explicit management of Session.Protocol_Handlers, with protocol state and functions;
wenzelm
parents: 52084
diff changeset
   475
54442
c39972ddd672 more specific Protocol_Output: empty message.body, main content via bytes/text;
wenzelm
parents: 53054
diff changeset
   476
              case _ => bad_output()
c39972ddd672 more specific Protocol_Output: empty message.body, main content via bytes/text;
wenzelm
parents: 53054
diff changeset
   477
            }
c39972ddd672 more specific Protocol_Output: empty message.body, main content via bytes/text;
wenzelm
parents: 53054
diff changeset
   478
          }
c39972ddd672 more specific Protocol_Output: empty message.body, main content via bytes/text;
wenzelm
parents: 53054
diff changeset
   479
        case _ =>
c39972ddd672 more specific Protocol_Output: empty message.body, main content via bytes/text;
wenzelm
parents: 53054
diff changeset
   480
          output.properties match {
c39972ddd672 more specific Protocol_Output: empty message.body, main content via bytes/text;
wenzelm
parents: 53054
diff changeset
   481
            case Position.Id(state_id) =>
c39972ddd672 more specific Protocol_Output: empty message.body, main content via bytes/text;
wenzelm
parents: 53054
diff changeset
   482
              accumulate(state_id, output.message)
56210
c7c85cdb725d clarified module arrangement;
wenzelm
parents: 56208
diff changeset
   483
54442
c39972ddd672 more specific Protocol_Output: empty message.body, main content via bytes/text;
wenzelm
parents: 53054
diff changeset
   484
            case _ if output.is_init =>
c39972ddd672 more specific Protocol_Output: empty message.body, main content via bytes/text;
wenzelm
parents: 53054
diff changeset
   485
              phase = Session.Ready
56210
c7c85cdb725d clarified module arrangement;
wenzelm
parents: 56208
diff changeset
   486
54442
c39972ddd672 more specific Protocol_Output: empty message.body, main content via bytes/text;
wenzelm
parents: 53054
diff changeset
   487
            case Markup.Return_Code(rc) if output.is_exit =>
c39972ddd672 more specific Protocol_Output: empty message.body, main content via bytes/text;
wenzelm
parents: 53054
diff changeset
   488
              if (rc == 0) phase = Session.Inactive
c39972ddd672 more specific Protocol_Output: empty message.body, main content via bytes/text;
wenzelm
parents: 53054
diff changeset
   489
              else phase = Session.Failed
56793
d5ab6a8799ce more synchronized treatment of prover process, which might emit more messages before shutdown and requires manager to accept them;
wenzelm
parents: 56782
diff changeset
   490
              prover.reset
56210
c7c85cdb725d clarified module arrangement;
wenzelm
parents: 56208
diff changeset
   491
56715
52125652e82a clarified Session.Consumer, with Session.Outlet managed by dispatcher thread;
wenzelm
parents: 56713
diff changeset
   492
            case _ => raw_output_messages.post(output)
44661
383c9d758a56 raw message function "assign_execs" avoids full overhead of decoding and caching message body;
wenzelm
parents: 44644
diff changeset
   493
          }
52111
1fd184eaa310 explicit management of Session.Protocol_Handlers, with protocol state and functions;
wenzelm
parents: 52084
diff changeset
   494
        }
34809
0fed930f2992 misc tuning;
wenzelm
parents: 34808
diff changeset
   495
    }
38221
e0f00f0945b4 misc tuning and clarification;
wenzelm
parents: 38150
diff changeset
   496
    //}}}
34809
0fed930f2992 misc tuning;
wenzelm
parents: 34808
diff changeset
   497
34820
a8ba6cde13e9 basic setup for synchronous / modal (!) prover startup;
wenzelm
parents: 34819
diff changeset
   498
56706
f2f53f7046f4 converted main session manager to Consumer_Thread: messages need to be consumed immediately, postponed_changes replaces implicit actor mailbox scanning;
wenzelm
parents: 56705
diff changeset
   499
    /* main thread */
f2f53f7046f4 converted main session manager to Consumer_Thread: messages need to be consumed immediately, postponed_changes replaces implicit actor mailbox scanning;
wenzelm
parents: 56705
diff changeset
   500
56710
8f102c18eab7 more uniform warning/error handling, potentially with propagation to send_wait caller;
wenzelm
parents: 56709
diff changeset
   501
    Consumer_Thread.fork[Any]("Session.manager", daemon = true)
56709
e83356e94380 more careful shutdown (amending f2f53f7046f4);
wenzelm
parents: 56706
diff changeset
   502
    {
e83356e94380 more careful shutdown (amending f2f53f7046f4);
wenzelm
parents: 56706
diff changeset
   503
      case arg: Any =>
e83356e94380 more careful shutdown (amending f2f53f7046f4);
wenzelm
parents: 56706
diff changeset
   504
        //{{{
e83356e94380 more careful shutdown (amending f2f53f7046f4);
wenzelm
parents: 56706
diff changeset
   505
        arg match {
56733
f7700146678d manager is direct receiver of prover output -- discontinued old performance tuning (329320fc88df, 1baa5d19ac44);
wenzelm
parents: 56719
diff changeset
   506
          case output: Prover.Output =>
56775
59f70b89e5fd improved syslog performance -- avoid denial-of-service e.g. with threads_trace = 5 and active Syslog dockable;
wenzelm
parents: 56772
diff changeset
   507
            if (output.is_stdout || output.is_stderr)
59f70b89e5fd improved syslog performance -- avoid denial-of-service e.g. with threads_trace = 5 and active Syslog dockable;
wenzelm
parents: 56772
diff changeset
   508
              raw_output_messages.post(output)
56733
f7700146678d manager is direct receiver of prover output -- discontinued old performance tuning (329320fc88df, 1baa5d19ac44);
wenzelm
parents: 56719
diff changeset
   509
            else handle_output(output)
56775
59f70b89e5fd improved syslog performance -- avoid denial-of-service e.g. with threads_trace = 5 and active Syslog dockable;
wenzelm
parents: 56772
diff changeset
   510
56733
f7700146678d manager is direct receiver of prover output -- discontinued old performance tuning (329320fc88df, 1baa5d19ac44);
wenzelm
parents: 56719
diff changeset
   511
            if (output.is_syslog) {
56775
59f70b89e5fd improved syslog performance -- avoid denial-of-service e.g. with threads_trace = 5 and active Syslog dockable;
wenzelm
parents: 56772
diff changeset
   512
              syslog += output.message
56733
f7700146678d manager is direct receiver of prover output -- discontinued old performance tuning (329320fc88df, 1baa5d19ac44);
wenzelm
parents: 56719
diff changeset
   513
              syslog_messages.post(output)
f7700146678d manager is direct receiver of prover output -- discontinued old performance tuning (329320fc88df, 1baa5d19ac44);
wenzelm
parents: 56719
diff changeset
   514
            }
56775
59f70b89e5fd improved syslog performance -- avoid denial-of-service e.g. with threads_trace = 5 and active Syslog dockable;
wenzelm
parents: 56772
diff changeset
   515
56733
f7700146678d manager is direct receiver of prover output -- discontinued old performance tuning (329320fc88df, 1baa5d19ac44);
wenzelm
parents: 56719
diff changeset
   516
            all_messages.post(output)
f7700146678d manager is direct receiver of prover output -- discontinued old performance tuning (329320fc88df, 1baa5d19ac44);
wenzelm
parents: 56719
diff changeset
   517
f7700146678d manager is direct receiver of prover output -- discontinued old performance tuning (329320fc88df, 1baa5d19ac44);
wenzelm
parents: 56719
diff changeset
   518
          case input: Prover.Input =>
f7700146678d manager is direct receiver of prover output -- discontinued old performance tuning (329320fc88df, 1baa5d19ac44);
wenzelm
parents: 56719
diff changeset
   519
            all_messages.post(input)
f7700146678d manager is direct receiver of prover output -- discontinued old performance tuning (329320fc88df, 1baa5d19ac44);
wenzelm
parents: 56719
diff changeset
   520
56793
d5ab6a8799ce more synchronized treatment of prover process, which might emit more messages before shutdown and requires manager to accept them;
wenzelm
parents: 56782
diff changeset
   521
          case Start(name, args) if !prover.defined =>
56709
e83356e94380 more careful shutdown (amending f2f53f7046f4);
wenzelm
parents: 56706
diff changeset
   522
            if (phase == Session.Inactive || phase == Session.Failed) {
e83356e94380 more careful shutdown (amending f2f53f7046f4);
wenzelm
parents: 56706
diff changeset
   523
              phase = Session.Startup
56793
d5ab6a8799ce more synchronized treatment of prover process, which might emit more messages before shutdown and requires manager to accept them;
wenzelm
parents: 56782
diff changeset
   524
              prover.set(resources.start_prover(manager.send(_), name, args))
56709
e83356e94380 more careful shutdown (amending f2f53f7046f4);
wenzelm
parents: 56706
diff changeset
   525
            }
56706
f2f53f7046f4 converted main session manager to Consumer_Thread: messages need to be consumed immediately, postponed_changes replaces implicit actor mailbox scanning;
wenzelm
parents: 56705
diff changeset
   526
56709
e83356e94380 more careful shutdown (amending f2f53f7046f4);
wenzelm
parents: 56706
diff changeset
   527
          case Stop =>
56793
d5ab6a8799ce more synchronized treatment of prover process, which might emit more messages before shutdown and requires manager to accept them;
wenzelm
parents: 56782
diff changeset
   528
            if (prover.defined && is_ready) {
56709
e83356e94380 more careful shutdown (amending f2f53f7046f4);
wenzelm
parents: 56706
diff changeset
   529
              _protocol_handlers = _protocol_handlers.stop(prover.get)
56772
725a192f8081 tuned comments;
wenzelm
parents: 56771
diff changeset
   530
              global_state.change(_ => Document.State.init)
56709
e83356e94380 more careful shutdown (amending f2f53f7046f4);
wenzelm
parents: 56706
diff changeset
   531
              phase = Session.Shutdown
e83356e94380 more careful shutdown (amending f2f53f7046f4);
wenzelm
parents: 56706
diff changeset
   532
              prover.get.terminate
e83356e94380 more careful shutdown (amending f2f53f7046f4);
wenzelm
parents: 56706
diff changeset
   533
            }
56706
f2f53f7046f4 converted main session manager to Consumer_Thread: messages need to be consumed immediately, postponed_changes replaces implicit actor mailbox scanning;
wenzelm
parents: 56705
diff changeset
   534
56771
28d62a5b07e8 more systematic delay_first discipline for change_buffer and prune_history;
wenzelm
parents: 56735
diff changeset
   535
          case Prune_History =>
56793
d5ab6a8799ce more synchronized treatment of prover process, which might emit more messages before shutdown and requires manager to accept them;
wenzelm
parents: 56782
diff changeset
   536
            if (prover.defined) {
56771
28d62a5b07e8 more systematic delay_first discipline for change_buffer and prune_history;
wenzelm
parents: 56735
diff changeset
   537
              val old_versions = global_state.change_result(_.prune_history(prune_size))
28d62a5b07e8 more systematic delay_first discipline for change_buffer and prune_history;
wenzelm
parents: 56735
diff changeset
   538
              if (!old_versions.isEmpty) prover.get.remove_versions(old_versions)
28d62a5b07e8 more systematic delay_first discipline for change_buffer and prune_history;
wenzelm
parents: 56735
diff changeset
   539
            }
28d62a5b07e8 more systematic delay_first discipline for change_buffer and prune_history;
wenzelm
parents: 56735
diff changeset
   540
56709
e83356e94380 more careful shutdown (amending f2f53f7046f4);
wenzelm
parents: 56706
diff changeset
   541
          case Update_Options(options) =>
56793
d5ab6a8799ce more synchronized treatment of prover process, which might emit more messages before shutdown and requires manager to accept them;
wenzelm
parents: 56782
diff changeset
   542
            if (prover.defined && is_ready) {
56709
e83356e94380 more careful shutdown (amending f2f53f7046f4);
wenzelm
parents: 56706
diff changeset
   543
              prover.get.options(options)
e83356e94380 more careful shutdown (amending f2f53f7046f4);
wenzelm
parents: 56706
diff changeset
   544
              handle_raw_edits(Document.Blobs.empty, Nil)
e83356e94380 more careful shutdown (amending f2f53f7046f4);
wenzelm
parents: 56706
diff changeset
   545
            }
56715
52125652e82a clarified Session.Consumer, with Session.Outlet managed by dispatcher thread;
wenzelm
parents: 56713
diff changeset
   546
            global_options.post(Session.Global_Options(options))
34809
0fed930f2992 misc tuning;
wenzelm
parents: 34808
diff changeset
   547
56793
d5ab6a8799ce more synchronized treatment of prover process, which might emit more messages before shutdown and requires manager to accept them;
wenzelm
parents: 56782
diff changeset
   548
          case Cancel_Exec(exec_id) if prover.defined =>
56709
e83356e94380 more careful shutdown (amending f2f53f7046f4);
wenzelm
parents: 56706
diff changeset
   549
            prover.get.cancel_exec(exec_id)
56706
f2f53f7046f4 converted main session manager to Consumer_Thread: messages need to be consumed immediately, postponed_changes replaces implicit actor mailbox scanning;
wenzelm
parents: 56705
diff changeset
   550
56793
d5ab6a8799ce more synchronized treatment of prover process, which might emit more messages before shutdown and requires manager to accept them;
wenzelm
parents: 56782
diff changeset
   551
          case Session.Raw_Edits(doc_blobs, edits) if prover.defined =>
56709
e83356e94380 more careful shutdown (amending f2f53f7046f4);
wenzelm
parents: 56706
diff changeset
   552
            handle_raw_edits(doc_blobs, edits)
e83356e94380 more careful shutdown (amending f2f53f7046f4);
wenzelm
parents: 56706
diff changeset
   553
56793
d5ab6a8799ce more synchronized treatment of prover process, which might emit more messages before shutdown and requires manager to accept them;
wenzelm
parents: 56782
diff changeset
   554
          case Session.Dialog_Result(id, serial, result) if prover.defined =>
56709
e83356e94380 more careful shutdown (amending f2f53f7046f4);
wenzelm
parents: 56706
diff changeset
   555
            prover.get.dialog_result(serial, result)
e83356e94380 more careful shutdown (amending f2f53f7046f4);
wenzelm
parents: 56706
diff changeset
   556
            handle_output(new Prover.Output(Protocol.Dialog_Result(id, serial, result)))
56706
f2f53f7046f4 converted main session manager to Consumer_Thread: messages need to be consumed immediately, postponed_changes replaces implicit actor mailbox scanning;
wenzelm
parents: 56705
diff changeset
   557
56793
d5ab6a8799ce more synchronized treatment of prover process, which might emit more messages before shutdown and requires manager to accept them;
wenzelm
parents: 56782
diff changeset
   558
          case Protocol_Command(name, args) if prover.defined =>
56709
e83356e94380 more careful shutdown (amending f2f53f7046f4);
wenzelm
parents: 56706
diff changeset
   559
            prover.get.protocol_command(name, args:_*)
56706
f2f53f7046f4 converted main session manager to Consumer_Thread: messages need to be consumed immediately, postponed_changes replaces implicit actor mailbox scanning;
wenzelm
parents: 56705
diff changeset
   560
56793
d5ab6a8799ce more synchronized treatment of prover process, which might emit more messages before shutdown and requires manager to accept them;
wenzelm
parents: 56782
diff changeset
   561
          case change: Session.Change if prover.defined =>
56709
e83356e94380 more careful shutdown (amending f2f53f7046f4);
wenzelm
parents: 56706
diff changeset
   562
            if (global_state.value.is_assigned(change.previous))
e83356e94380 more careful shutdown (amending f2f53f7046f4);
wenzelm
parents: 56706
diff changeset
   563
              handle_change(change)
e83356e94380 more careful shutdown (amending f2f53f7046f4);
wenzelm
parents: 56706
diff changeset
   564
            else postponed_changes.store(change)
56706
f2f53f7046f4 converted main session manager to Consumer_Thread: messages need to be consumed immediately, postponed_changes replaces implicit actor mailbox scanning;
wenzelm
parents: 56705
diff changeset
   565
        }
56709
e83356e94380 more careful shutdown (amending f2f53f7046f4);
wenzelm
parents: 56706
diff changeset
   566
        true
e83356e94380 more careful shutdown (amending f2f53f7046f4);
wenzelm
parents: 56706
diff changeset
   567
        //}}}
e83356e94380 more careful shutdown (amending f2f53f7046f4);
wenzelm
parents: 56706
diff changeset
   568
    }
34777
91d6089cef88 class Session models full session, with or without prover process (cf. heaps, browser_info);
wenzelm
parents:
diff changeset
   569
  }
91d6089cef88 class Session models full session, with or without prover process (cf. heaps, browser_info);
wenzelm
parents:
diff changeset
   570
34809
0fed930f2992 misc tuning;
wenzelm
parents: 34808
diff changeset
   571
56799
wenzelm
parents: 56793
diff changeset
   572
  /* main operations */
wenzelm
parents: 56793
diff changeset
   573
wenzelm
parents: 56793
diff changeset
   574
  def snapshot(name: Document.Node.Name = Document.Node.Name.empty,
wenzelm
parents: 56793
diff changeset
   575
      pending_edits: List[Text.Edit] = Nil): Document.Snapshot =
wenzelm
parents: 56793
diff changeset
   576
    global_state.value.snapshot(name, pending_edits)
34809
0fed930f2992 misc tuning;
wenzelm
parents: 34808
diff changeset
   577
56387
d92eb5c3960d more general prover operations;
wenzelm
parents: 56385
diff changeset
   578
  def start(name: String, args: List[String])
56706
f2f53f7046f4 converted main session manager to Consumer_Thread: messages need to be consumed immediately, postponed_changes replaces implicit actor mailbox scanning;
wenzelm
parents: 56705
diff changeset
   579
  { manager.send(Start(name, args)) }
45076
dd803d319d5b tuned signature;
wenzelm
parents: 45075
diff changeset
   580
50117
32755e357a51 update options via protocol;
wenzelm
parents: 49524
diff changeset
   581
  def stop()
32755e357a51 update options via protocol;
wenzelm
parents: 49524
diff changeset
   582
  {
56709
e83356e94380 more careful shutdown (amending f2f53f7046f4);
wenzelm
parents: 56706
diff changeset
   583
    manager.send_wait(Stop)
56793
d5ab6a8799ce more synchronized treatment of prover process, which might emit more messages before shutdown and requires manager to accept them;
wenzelm
parents: 56782
diff changeset
   584
    prover.await_reset()
56704
c2f0ddd14747 simplified -- prefer Consumer_Thread over Actor;
wenzelm
parents: 56691
diff changeset
   585
    change_parser.shutdown()
56706
f2f53f7046f4 converted main session manager to Consumer_Thread: messages need to be consumed immediately, postponed_changes replaces implicit actor mailbox scanning;
wenzelm
parents: 56705
diff changeset
   586
    change_buffer.shutdown()
56771
28d62a5b07e8 more systematic delay_first discipline for change_buffer and prune_history;
wenzelm
parents: 56735
diff changeset
   587
    delay_prune.revoke()
56706
f2f53f7046f4 converted main session manager to Consumer_Thread: messages need to be consumed immediately, postponed_changes replaces implicit actor mailbox scanning;
wenzelm
parents: 56705
diff changeset
   588
    manager.shutdown()
56715
52125652e82a clarified Session.Consumer, with Session.Outlet managed by dispatcher thread;
wenzelm
parents: 56713
diff changeset
   589
    dispatcher.shutdown()
50117
32755e357a51 update options via protocol;
wenzelm
parents: 49524
diff changeset
   590
  }
38841
4df7b76249a0 include Document.History in Document.State -- just one universal session state maintained by main actor;
wenzelm
parents: 38722
diff changeset
   591
53054
8365d7fca3de public access for protocol handlers and protocol commands -- to be used within reason;
wenzelm
parents: 52931
diff changeset
   592
  def protocol_command(name: String, args: String*)
56706
f2f53f7046f4 converted main session manager to Consumer_Thread: messages need to be consumed immediately, postponed_changes replaces implicit actor mailbox scanning;
wenzelm
parents: 56705
diff changeset
   593
  { manager.send(Protocol_Command(name, args.toList)) }
53054
8365d7fca3de public access for protocol handlers and protocol commands -- to be used within reason;
wenzelm
parents: 52931
diff changeset
   594
56706
f2f53f7046f4 converted main session manager to Consumer_Thread: messages need to be consumed immediately, postponed_changes replaces implicit actor mailbox scanning;
wenzelm
parents: 56705
diff changeset
   595
  def cancel_exec(exec_id: Document_ID.Exec)
f2f53f7046f4 converted main session manager to Consumer_Thread: messages need to be consumed immediately, postponed_changes replaces implicit actor mailbox scanning;
wenzelm
parents: 56705
diff changeset
   596
  { manager.send(Cancel_Exec(exec_id)) }
52931
ac6648c0c0fb cancel_query via direct access to the exec_id of the running query process;
wenzelm
parents: 52800
diff changeset
   597
54521
744ea0025e11 clarified Document.Blobs environment vs. actual edits of auxiliary files;
wenzelm
parents: 54519
diff changeset
   598
  def update(doc_blobs: Document.Blobs, edits: List[Document.Edit_Text])
56706
f2f53f7046f4 converted main session manager to Consumer_Thread: messages need to be consumed immediately, postponed_changes replaces implicit actor mailbox scanning;
wenzelm
parents: 56705
diff changeset
   599
  { if (!edits.isEmpty) manager.send_wait(Session.Raw_Edits(doc_blobs, edits)) }
50498
6647ba2775c1 support dialog via document content;
wenzelm
parents: 50433
diff changeset
   600
52084
573e80625c78 more explicit Session.update_options as source of Global_Options event;
wenzelm
parents: 51818
diff changeset
   601
  def update_options(options: Options)
56706
f2f53f7046f4 converted main session manager to Consumer_Thread: messages need to be consumed immediately, postponed_changes replaces implicit actor mailbox scanning;
wenzelm
parents: 56705
diff changeset
   602
  { manager.send_wait(Update_Options(options)) }
52084
573e80625c78 more explicit Session.update_options as source of Global_Options event;
wenzelm
parents: 51818
diff changeset
   603
52531
21f8e0e151f5 tuned signature;
wenzelm
parents: 52530
diff changeset
   604
  def dialog_result(id: Document_ID.Generic, serial: Long, result: String)
56706
f2f53f7046f4 converted main session manager to Consumer_Thread: messages need to be consumed immediately, postponed_changes replaces implicit actor mailbox scanning;
wenzelm
parents: 56705
diff changeset
   605
  { manager.send(Session.Dialog_Result(id, serial, result)) }
34777
91d6089cef88 class Session models full session, with or without prover process (cf. heaps, browser_info);
wenzelm
parents:
diff changeset
   606
}