-- Stub file TargetRpcServerImpl.mesa was translated on 18-Feb-83 11:26:45
    -- PST by Lupine of 18-Feb-83 11:25:52 PST.

-- Source interface Target came from file Target.bcd, which was created
    -- on 18-Feb-83 11:26:38 PST with version stamp 361#2#12167013415 from
    -- source of  8-Jul-82  9:33:34 PDT.

-- The RPC stub modules for Target are:
    -- TargetRpcControl.mesa;
    -- TargetRpcClientImpl.mesa;
    -- TargetRpcBinderImpl.mesa;
    -- TargetRpcServerImpl.mesa.

-- The parameters for this translation are:
    -- Target language = Cedar;
    -- Default parameter passing = VALUE;
    -- Deallocate server heap arguments = TRUE;
    -- Inline RpcServerImpl dispatcher stubs = TRUE;
    -- Maximum number of dynamic heap NEWs = 50, MDS NEWs = 50;
    -- Acceptable parameter protocols = VersionRange[1,1].


DIRECTORY
  Rope,
  Target,
  TargetRpcControl USING [InterMdsCallsOnly, LupineProtocolVersion,
      ProcedureIndex, SignalIndex],
  RPC USING [EncryptionKey, InterfaceName, Principal, standardZones,
      Zones],
  RPCLupine --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, DispatchingError,
      -- FinishThisPkt, ListHeader, MarshalingError, MarshalingExprError,
      -- NilHeader, ProtocolError, RopeHeader, RpcPktDoubleWord, RuntimeError,
      -- SequenceHeader, SHORT, StartNextPkt, StringHeader, StubPktDoubleWord,
      -- TranslationError, UnmarshalingError, UnmarshalingExprError, WordsForChars]--,
  Atom --USING SOME OF [GetPName, MakeAtom]--,
  ConvertUnsafe USING [AppendRope],
  Heap USING [systemMDSZone],
  RopeInline --USING SOME OF [InlineFlatten, NewText]--,
  SafeStorage USING [GetSystemZone],
  UnsafeStorage USING [GetSystemUZone];


TargetRpcServerImpl: MONITOR
  IMPORTS Target, RpcPrivate: RPCLupine, Lupine: LupineRuntime, Atom,
      ConvertUnsafe, Heap, RopeInline, SafeStorage, UnsafeStorage
  EXPORTS TargetRpcControl
  SHARES  Target, TargetRpcControl, Rope
  = BEGIN OPEN Target, RpcControl: TargetRpcControl, RpcPublic: RPC;


-- Standard remote binding routines.

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

  ExportInterface: PUBLIC ENTRY SAFE PROCEDURE [
        interfaceName: RpcPublic.InterfaceName,
        user: RpcPublic.Principal,
        password: RpcPublic.EncryptionKey,
        parameterStorage: RpcPublic.Zones ] =
    TRUSTED BEGIN ENABLE UNWIND => NULL;
    IsNull: PROCEDURE [string: LONG STRING] RETURNS [BOOLEAN] =
      INLINE {RETURN[ string=NIL OR string.length=0 ]};
    IF bound THEN Lupine.BindingError;
    BEGIN
    type: STRING = [RpcPrivate.maxShortStringLength];
    instance: STRING = [RpcPrivate.maxShortStringLength];
    userString: STRING = [RpcPrivate.maxPrincipalLength];
    ConvertUnsafe.AppendRope[to: type, from: interfaceName.type];
    ConvertUnsafe.AppendRope[to: instance, from: interfaceName.instance];
    ConvertUnsafe.AppendRope[to: userString, from: user];
    myInterface ← RpcPrivate.ExportInterface [
      interface: [
        type: IF ~IsNull[type]
          THEN type ELSE "Target~361#2#12167013415"L,
        instance: instance,
        version: interfaceName.version ],
      user: userString,  password: password,
      dispatcher: ServerDispatcher,
      localOnly: RpcControl.InterMdsCallsOnly,
      stubProtocol: RpcControl.LupineProtocolVersion ];
    END;
    paramZones ← [
      gc: IF parameterStorage.gc # NIL
        THEN parameterStorage.gc ELSE SafeStorage.GetSystemZone[],
      heap: IF parameterStorage.heap # NIL
        THEN parameterStorage.heap ELSE UnsafeStorage.GetSystemUZone[],
      mds: IF parameterStorage.mds # NIL
        THEN parameterStorage.mds ELSE Heap.systemMDSZone ];
    bound ← TRUE;
    END;

  UnexportInterface: PUBLIC ENTRY SAFE PROCEDURE =
    TRUSTED 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

      Exception --ERROR [why: Reason]-- =>
	BEGIN
	ArgumentOverlay: TYPE = MACHINE DEPENDENT RECORD [
	    transferIndex (0): RpcControl.SignalIndex ← Exception, why
	    (1): Reason];
	argPkt: LONG POINTER TO ArgumentOverlay = @pkt.data[0];
	pktLength: RpcPrivate.DataLength ← 2;
	lastPkt: BOOLEAN;
	RpcPrivate.StartSignal[signalPkt: pkt];
	argPkt↑ ← [why: why];
	[returnLength: , lastPkt: lastPkt] ←
	  RpcPrivate.Call[ pkt: pkt, callLength: pktLength,
	      maxReturnLength: 0];
	Lupine.RuntimeError;  -- Impossible to RESUME an ERROR.
	END;  -- Exception.

      Consultation --SIGNAL-- =>
	BEGIN
	ArgumentOverlay: TYPE = MACHINE DEPENDENT RECORD [
	    transferIndex (0): RpcControl.SignalIndex ← Consultation];
	argPkt: LONG POINTER TO ArgumentOverlay = @pkt.data[0];
	pktLength: RpcPrivate.DataLength ← 1;
	lastPkt: BOOLEAN;
	RpcPrivate.StartSignal[signalPkt: pkt];
	argPkt.transferIndex ← Consultation;
	[returnLength: , lastPkt: lastPkt] ←
	  RpcPrivate.Call[ pkt: pkt, callLength: pktLength,
	      maxReturnLength: 0];
	Lupine.CheckPktLength[pkt: pkt, pktLength: 0];
	RESUME[];
	END;  -- Consultation.

      END;  -- Catch public signals.


    -- Call public procedures (still in dispatcher).

    SELECT LOOPHOLE[pkt.data[0], RpcControl.ProcedureIndex] FROM
      Basic => RETURN[
	BasicStub[pkt: pkt, callLength: callLength, lastPkt: lastPkt,
	    localConversation: localConversation]];
      Simple => RETURN[
	SimpleStub[pkt: pkt, callLength: callLength, lastPkt: lastPkt,
	    localConversation: localConversation]];
      ENDCASE => RETURN[Lupine.DispatchingError[]];

    END;  -- ServerDispatcher


-- Public procedure dispatcher stubs.

  BasicStub: --PROCEDURE-- RpcPrivate.Dispatcher =
    INLINE BEGIN
    pktLength: RpcPrivate.DataLength;
    Lupine.CheckPktLength[pkt: pkt, pktLength: 1];
    Basic[];
    pktLength ← 0;
    RETURN[returnLength: pktLength];
    END;  -- BasicStub.

  SimpleStub: --PROCEDURE [first: INT, second: REF INT] RETURNS [a:
      -- Rope.ROPE, b: ATOM]-- RpcPrivate.Dispatcher =
    INLINE BEGIN
    second: REF INT;
    a: Rope.ROPE;
    b: ATOM;
    ArgumentOverlay: TYPE = MACHINE DEPENDENT RECORD [
	transferIndex (0): RpcControl.ProcedureIndex, first (1): INT];
    argPkt: LONG POINTER TO ArgumentOverlay = @pkt.data[0];
    pktLength: RpcPrivate.DataLength ← 3;
    BEGIN  -- Unmarshal second: REF INT from pkt.data[pktLength].
      isNIL: Lupine.NilHeader;
      isNIL ← pkt.data[pktLength];  pktLength ← pktLength+1;
      IF isNIL
	THEN second ← NIL
	ELSE BEGIN
	  second ← (paramZones.gc.NEW[INT]);
	  BEGIN
	  second↑ ← Lupine.RpcPktDoubleWord[pkt, pktLength]↑;
	  pktLength ← pktLength + 2;
	  END;
	  END;  -- IF isNIL.
      END;  -- Unmarshal second.
    Lupine.CheckPktLength[pkt: pkt, pktLength: pktLength];
    [a, b] ←
      Simple[argPkt.first, second];
    pktLength ← 0;
    BEGIN  -- Marshal a: Rope.ROPE to pkt.data[pktLength].
      IF pktLength+2 > RpcPrivate.maxDataLength
	THEN pktLength ← Lupine.StartNextPkt[pkt: pkt, pktLength: pktLength];
      pkt.data[pktLength] ← a=NIL;  pktLength ← pktLength+1;
      IF a # NIL
	THEN BEGIN
	  textRope: Rope.Text = RopeInline.InlineFlatten[r: a];
	  pkt.data[pktLength] ← textRope.length;  pktLength ← pktLength+1;
	  pktLength ← Lupine.CopyToPkt[pkt: pkt, pktLength: pktLength,
	      dataAdr: BASE[DESCRIPTOR[textRope.text]], dataLength: Lupine.WordsForChars[textRope.length],
	      alwaysOnePkt: FALSE];
	  END;  -- IF a # NIL.
      END;  -- Marshal a.
    BEGIN  -- Marshal b: ATOM to pkt.data[pktLength].
      pNameOfAtom: Rope.Text = Atom.GetPName[atom: b];
      IF pktLength+2 > RpcPrivate.maxDataLength
	THEN pktLength ← Lupine.StartNextPkt[pkt: pkt, pktLength: pktLength];
      pkt.data[pktLength] ← pNameOfAtom=NIL;  pktLength ← pktLength+1;
      IF pNameOfAtom # NIL
	THEN BEGIN
	  textRope: Rope.Text = RopeInline.InlineFlatten[r: pNameOfAtom];
	  pkt.data[pktLength] ← textRope.length;  pktLength ← pktLength+1;
	  pktLength ← Lupine.CopyToPkt[pkt: pkt, pktLength: pktLength,
	      dataAdr: BASE[DESCRIPTOR[textRope.text]], dataLength: Lupine.WordsForChars[textRope.length],
	      alwaysOnePkt: FALSE];
	  END;  -- IF pNameOfAtom # NIL.
      END;  -- Marshal b.
    RETURN[returnLength: pktLength];
    END;  -- SimpleStub.


-- No module initialization.

  END.  -- TargetRpcServerImpl.