-- Copyright (C) 1984  by Xerox Corporation. All rights reserved. 
-- Stub file  was translated on July 19, 1984 1:58:17 am PDT by Lupine of December 20, 1983 1:22:57 pm PST
-- Source interface Multibus came from file Multibus.bcd, which was created on July 19, 1984 1:56:38 am PDT with version stamp 14#17#25044235147 from source of July 17, 1984 3:41:14 pm PDT.

-- The RPC stub modules for Multibus are:
--   MultibusRpcControl.mesa;
--   MultibusRpcClientImpl.mesa;
--   MultibusRpcBinderImpl.mesa;
--   MultibusRpcServerImpl.mesa.

-- The parameters for this translation are:
--   Target language = Mesa
--   Default parameter passing = VALUE
--   Deallocate server heap arguments = TRUE
--   Inline RpcServerImpl dispatcher stubs = TRUE
--   Declare signals = TRUE
--   Warn about short POINTER ("MDS") allocations = TRUE
--   Maximum number of dynamic heap NEWs = 50, MDS NEWs = 50
--   Acceptable parameter protocols = VersionRange[1..1].


DIRECTORY
  Multibus,
  MultibusRpcControl USING [InterMdsCallsOnly, LupineProtocolVersion,
      ProcedureIndex, SignalIndex],
  MesaRPC USING [EncryptionKey, InterfaceName, Principal, standardZones,
      Zones],
  MesaRPCLupine --USING SOME OF [Call, DataLength, Dispatcher, ExportHandle,
      -- ExportInterface, GetStubPkt, maxDataLength, maxPrincipalLength,
      -- maxShortStringLength, pktOverhead, ReceiveExtraPkt, SendPrelimPkt,
      -- StartCall, StartSignal, StubPkt, UnexportInterface]--,
  LupineRuntime --USING SOME OF [BindingError, CheckPktLength, CopyFromPkt,
      -- CopyFromMultiplePkts, CopyToPkt, CopyToMultiplePkts, defaultZones,
      -- DispatchingError, FinishThisPkt, ListHeader, MarshalingError,
      -- MarshalingExprError, NilHeader, ProtocolError, RopeHeader, RpcPktDoubleWord,
      -- RuntimeError, SequenceHeader, SHORT, StartNextPkt, StringHeader,
      -- StubPktDoubleWord, TranslationError, UnmarshalingError, UnmarshalingExprError,
      -- WordsForChars]--;


MultibusRpcServerImpl: MONITOR
  IMPORTS Multibus, RpcPrivate: MesaRPCLupine, Lupine: LupineRuntime
  EXPORTS MultibusRpcControl
  SHARES  Multibus, MultibusRpcControl
  = BEGIN OPEN Multibus, RpcControl: MultibusRpcControl, RpcPublic:
      MesaRPC;


-- Standard remote binding routines.

  bound: BOOLEAN ¬ FALSE;
  myInterface: RpcPrivate.ExportHandle;
  paramZones: RpcPublic.Zones ¬ RpcPublic.standardZones;

  ExportInterface: PUBLIC ENTRY PROCEDURE [
        interfaceName: RpcPublic.InterfaceName,
        user: RpcPublic.Principal,
        password: RpcPublic.EncryptionKey,
        parameterStorage: RpcPublic.Zones ] =
    BEGIN ENABLE UNWIND => NULL;
    IsNull: PROCEDURE [string: LONG STRING] RETURNS [BOOLEAN] =
      INLINE {RETURN[string=NIL OR string.length=0]};
    IF bound THEN Lupine.BindingError;
    myInterface ¬ RpcPrivate.ExportInterface [
      interface: [
        type: IF ~IsNull[interfaceName.type]
          THEN interfaceName.type ELSE "Multibus~14#17#25044235147",
        instance: interfaceName.instance,
        version: interfaceName.version ],
      user: user,  password: password,
      dispatcher: ServerDispatcher,
      localOnly: RpcControl.InterMdsCallsOnly,
      stubProtocol: RpcControl.LupineProtocolVersion ];
    paramZones ¬ [
      gc: IF parameterStorage.gc # NIL
        THEN parameterStorage.gc ELSE Lupine.defaultZones.gc,
      heap: IF parameterStorage.heap # NIL
        THEN parameterStorage.heap ELSE Lupine.defaultZones.heap,
      mds: IF parameterStorage.mds # NIL
        THEN parameterStorage.mds ELSE Lupine.defaultZones.mds ];
    bound ¬ TRUE;
    END;

  UnexportInterface: PUBLIC ENTRY PROCEDURE =
    BEGIN ENABLE UNWIND => NULL;
    IF ~bound THEN Lupine.BindingError;
    myInterface ¬ RpcPrivate.UnexportInterface[myInterface];
    paramZones ¬ RpcPublic.standardZones;
    bound ¬ FALSE;
    END;


-- Public procedure dispatcher and public signal and error catcher.

  ServerDispatcher: --PROCEDURE [pkt: RPCPkt, callLength: DataLength,
      -- lastPkt: BOOLEAN, localConversation: Conversation] RETURNS [returnLength:
      -- DataLength]-- RpcPrivate.Dispatcher =
    BEGIN

    -- Catch public signals.

      ENABLE BEGIN

      Error --ERROR [reason: LONG STRING]-- =>
        BEGIN
        ArgumentOverlay: TYPE = MACHINE DEPENDENT RECORD [
            transferIndex (0): RpcControl.SignalIndex ¬ Error];
        argPkt: LONG POINTER TO ArgumentOverlay = @pkt.data[0];
        pktLength: RpcPrivate.DataLength ¬ 1;
        lastPkt: BOOLEAN;
        RpcPrivate.StartSignal[signalPkt: pkt];
        argPkt.transferIndex ¬ Error;
        BEGIN  -- Marshal reason: LONG STRING to pkt.data[pktLength].
          IF pktLength+3 > RpcPrivate.maxDataLength
            THEN pktLength ¬ Lupine.StartNextPkt[pkt: pkt, pktLength:
                pktLength];
          pkt.data[pktLength] ¬ reason=NIL;  pktLength ¬ pktLength+1;
          IF reason # NIL
            THEN BEGIN
              stringHeader: Lupine.StringHeader = [
                Lengths[length: reason.length, maxLength: reason.maxlength]];
              Lupine.RpcPktDoubleWord[pkt, pktLength]­ ¬ stringHeader.all;
              pktLength ¬ pktLength + 2;
              pktLength ¬ Lupine.CopyToPkt[pkt: pkt, pktLength: pktLength,
                  dataAdr: BASE[reason.text], dataLength: Lupine.WordsForChars[stringHeader.length],
                  alwaysOnePkt: FALSE];
              END;  -- IF reason # NIL.
          END;  -- Marshal reason.
        [returnLength: , lastPkt: lastPkt] ¬
          RpcPrivate.Call[ pkt: pkt, callLength: pktLength,
              maxReturnLength: 0];
        Lupine.RuntimeError;  -- Impossible to RESUME an ERROR.
        END;  -- Error.

      END;  -- Catch public signals.


    -- Call public procedures (still in dispatcher).

    SELECT LOOPHOLE[pkt.data[0], RpcControl.ProcedureIndex] FROM
      Input => RETURN[
        InputStub[pkt: pkt, callLength: callLength, lastPkt: lastPkt,
            localConversation: localConversation]];
      Output => RETURN[
        OutputStub[pkt: pkt, callLength: callLength, lastPkt: lastPkt,
            localConversation: localConversation]];
      RawRead => RETURN[
        RawReadStub[pkt: pkt, callLength: callLength, lastPkt: lastPkt,
            localConversation: localConversation]];
      RawWrite => RETURN[
        RawWriteStub[pkt: pkt, callLength: callLength, lastPkt: lastPkt,
            localConversation: localConversation]];
      RawReadPage => RETURN[
        RawReadPageStub[pkt: pkt, callLength: callLength, lastPkt:
            lastPkt, localConversation: localConversation]];
      RawWritePage => RETURN[
        RawWritePageStub[pkt: pkt, callLength: callLength, lastPkt:
            lastPkt, localConversation: localConversation]];
      RawReadBlock => RETURN[
        RawReadBlockStub[pkt: pkt, callLength: callLength, lastPkt:
            lastPkt, localConversation: localConversation]];
      RawWriteBlock => RETURN[
        RawWriteBlockStub[pkt: pkt, callLength: callLength, lastPkt:
            lastPkt, localConversation: localConversation]];
      ENDCASE => RETURN[Lupine.DispatchingError[]];

    END;  -- ServerDispatcher


-- Public procedure dispatcher stubs.

  InputStub: --PROCEDURE [address: HANDLEIOAddress] RETURNS [word:
      -- UNSPECIFIED]-- RpcPrivate.Dispatcher =
    INLINE BEGIN
    ArgumentOverlay: TYPE = MACHINE DEPENDENT RECORD [
        transferIndex (0): RpcControl.ProcedureIndex, address (1): HANDLEIOAddress];
    ResultOverlay: TYPE = MACHINE DEPENDENT RECORD [
        word (0): UNSPECIFIED];
    argPkt: LONG POINTER TO ArgumentOverlay = @pkt.data[0];
    resPkt: LONG POINTER TO ResultOverlay = @pkt.data[0];
    pktLength: RpcPrivate.DataLength;
    Lupine.CheckPktLength[pkt: pkt, pktLength: 3];
    [resPkt.word] ¬ Input[argPkt.address];
    pktLength ¬ 1;
    RETURN[returnLength: pktLength];
    END;  -- InputStub.

  OutputStub: --PROCEDURE [word: UNSPECIFIED, address: HANDLEIOAddress]--
      RpcPrivate.Dispatcher =
    INLINE BEGIN
    ArgumentOverlay: TYPE = MACHINE DEPENDENT RECORD [
        transferIndex (0): RpcControl.ProcedureIndex, word (1): UNSPECIFIED,
        address (2): HANDLEIOAddress];
    argPkt: LONG POINTER TO ArgumentOverlay = @pkt.data[0];
    pktLength: RpcPrivate.DataLength;
    Lupine.CheckPktLength[pkt: pkt, pktLength: 4];
    Output[argPkt.word, argPkt.address];
    pktLength ¬ 0;
    RETURN[returnLength: pktLength];
    END;  -- OutputStub.

  RawReadStub: --PROCEDURE [address: HANDLERawAddress] RETURNS [word:
      -- UNSPECIFIED]-- RpcPrivate.Dispatcher =
    INLINE BEGIN
    ArgumentOverlay: TYPE = MACHINE DEPENDENT RECORD [
        transferIndex (0): RpcControl.ProcedureIndex, address (1): HANDLERawAddress];
    ResultOverlay: TYPE = MACHINE DEPENDENT RECORD [
        word (0): UNSPECIFIED];
    argPkt: LONG POINTER TO ArgumentOverlay = @pkt.data[0];
    resPkt: LONG POINTER TO ResultOverlay = @pkt.data[0];
    pktLength: RpcPrivate.DataLength;
    Lupine.CheckPktLength[pkt: pkt, pktLength: 3];
    [resPkt.word] ¬ RawRead[argPkt.address];
    pktLength ¬ 1;
    RETURN[returnLength: pktLength];
    END;  -- RawReadStub.

  RawWriteStub: --PROCEDURE [word: UNSPECIFIED, address: HANDLERawAddress]--
      RpcPrivate.Dispatcher =
    INLINE BEGIN
    ArgumentOverlay: TYPE = MACHINE DEPENDENT RECORD [
        transferIndex (0): RpcControl.ProcedureIndex, word (1): UNSPECIFIED,
        address (2): HANDLERawAddress];
    argPkt: LONG POINTER TO ArgumentOverlay = @pkt.data[0];
    pktLength: RpcPrivate.DataLength;
    Lupine.CheckPktLength[pkt: pkt, pktLength: 4];
    RawWrite[argPkt.word, argPkt.address];
    pktLength ¬ 0;
    RETURN[returnLength: pktLength];
    END;  -- RawWriteStub.

  RawReadPageStub: --PROCEDURE [address: HANDLERawAddress] RETURNS
      -- [page: Page]-- RpcPrivate.Dispatcher =
    INLINE BEGIN
    page: Page;
    ArgumentOverlay: TYPE = MACHINE DEPENDENT RECORD [
        transferIndex (0): RpcControl.ProcedureIndex, address (1): HANDLERawAddress];
    argPkt: LONG POINTER TO ArgumentOverlay = @pkt.data[0];
    pktLength: RpcPrivate.DataLength;
    Lupine.CheckPktLength[pkt: pkt, pktLength: 3];
    [page] ¬ RawReadPage[argPkt.address];
    pktLength ¬ 0;
    BEGIN  -- Marshal page: Page to pkt.data[pktLength].
      pktLength ¬ Lupine.CopyToPkt[pkt: pkt, pktLength: pktLength,
          dataAdr: @page, dataLength: SIZE[Page], alwaysOnePkt: FALSE];
      END;  -- Marshal page.
    RETURN[returnLength: pktLength];
    END;  -- RawReadPageStub.

  RawWritePageStub: --PROCEDURE [page: Page, address: HANDLERawAddress]--
      RpcPrivate.Dispatcher =
    INLINE BEGIN
    page: Page;
    address: HANDLERawAddress;
    ArgumentOverlay: TYPE = MACHINE DEPENDENT RECORD [
        transferIndex (0): RpcControl.ProcedureIndex, address (1): HANDLERawAddress];
    argPkt: LONG POINTER TO ArgumentOverlay = @pkt.data[0];
    pktLength: RpcPrivate.DataLength ¬ 3;
    [address: address] ¬ argPkt­;
    BEGIN  -- Unmarshal page: Page from pkt.data[pktLength].
      pktLength ¬ Lupine.CopyFromPkt[pkt: pkt, pktLength: pktLength,
          dataAdr: @page, dataLength: SIZE[Page], alwaysOnePkt: FALSE];
      END;  -- Unmarshal page.
    Lupine.CheckPktLength[pkt: pkt, pktLength: pktLength];
    RawWritePage[page, address];
    pktLength ¬ 0;
    RETURN[returnLength: pktLength];
    END;  -- RawWritePageStub.

  RawReadBlockStub: --PROCEDURE [address: HANDLERawAddress] RETURNS
      -- [block: Block]-- RpcPrivate.Dispatcher =
    INLINE BEGIN
    block: Block;
    ArgumentOverlay: TYPE = MACHINE DEPENDENT RECORD [
        transferIndex (0): RpcControl.ProcedureIndex, address (1): HANDLERawAddress];
    argPkt: LONG POINTER TO ArgumentOverlay = @pkt.data[0];
    pktLength: RpcPrivate.DataLength;
    Lupine.CheckPktLength[pkt: pkt, pktLength: 3];
    [block] ¬ RawReadBlock[argPkt.address];
    pktLength ¬ 0;
    BEGIN  -- Marshal block: Block to pkt.data[pktLength].
      pktLength ¬ Lupine.CopyToPkt[pkt: pkt, pktLength: pktLength,
          dataAdr: @block, dataLength: SIZE[Block], alwaysOnePkt: FALSE];
      END;  -- Marshal block.
    RETURN[returnLength: pktLength];
    END;  -- RawReadBlockStub.

  RawWriteBlockStub: --PROCEDURE [block: Block, address: HANDLERawAddress]--
      RpcPrivate.Dispatcher =
    INLINE BEGIN
    block: Block;
    address: HANDLERawAddress;
    ArgumentOverlay: TYPE = MACHINE DEPENDENT RECORD [
        transferIndex (0): RpcControl.ProcedureIndex, address (1): HANDLERawAddress];
    argPkt: LONG POINTER TO ArgumentOverlay = @pkt.data[0];
    pktLength: RpcPrivate.DataLength ¬ 3;
    [address: address] ¬ argPkt­;
    BEGIN  -- Unmarshal block: Block from pkt.data[pktLength].
      pktLength ¬ Lupine.CopyFromPkt[pkt: pkt, pktLength: pktLength,
          dataAdr: @block, dataLength: SIZE[Block], alwaysOnePkt: FALSE];
      END;  -- Unmarshal block.
    Lupine.CheckPktLength[pkt: pkt, pktLength: pktLength];
    RawWriteBlock[block, address];
    pktLength ¬ 0;
    RETURN[returnLength: pktLength];
    END;  -- RawWriteBlockStub.


-- No module initialization.

END.  -- MultibusRpcServerImpl.