-- Stub file  was translated on February 1, 1984 5:22:08 pm PST by Lupine of December 20, 1983 1:22:57 pm PST
-- Source interface AlpineFile came from file AlpineFile.bcd, which was created on February 1, 1984 5:21:52 pm PST with version stamp 151#27#13440653423 from source of October 28, 1983 12:51:11 pm PDT.

-- The RPC stub modules for AlpineFile are:
--   AlpineFileRpcControl.mesa;
--   AlpineFileRpcClientImpl.mesa;
--   AlpineFileRpcBinderImpl.mesa;
--   AlpineFileRpcServerImpl.mesa.

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

-- NOTE: Discard this module unless you use dynamic client binding.


DIRECTORY
  AlpineFile,
  AlpineFileRpcControl USING [InterfaceRecord, InterfaceRecordObject],
  AlpineFileRpcClientImpl,
  RPC USING [InterfaceName, Zones],
  SafeStorage USING [EnableFinalization, EstablishFinalization, FinalizationQueue,
      FQEmpty, FQNext, NewFQ];


AlpineFileRpcBinderImpl: MONITOR
  IMPORTS AlpineFile, ClientPrototype: AlpineFileRpcClientImpl, RTT:
      SafeStorage
  EXPORTS AlpineFileRpcControl
  SHARES  AlpineFile, AlpineFileRpcControl
  = BEGIN OPEN RpcControl: AlpineFileRpcControl, RpcPublic: RPC;


-- Dynamic instantiation and binding routines.

  ImportNewInterface: PUBLIC SAFE PROCEDURE [
        interfaceName: RpcPublic.InterfaceName,
        parameterStorage: RpcPublic.Zones ]
      RETURNS [interfaceRecord: RpcControl.InterfaceRecord] =
    TRUSTED BEGIN
    interfaceRecord _ NewInterface[];
    LupineDetails[interfaceRecord].module.ImportInterface [
        interfaceName: interfaceName,
        parameterStorage: parameterStorage
      ! UNWIND => FreeInterface[interfaceRecord] ];
    END;

  UnimportNewInterface: SAFE PROCEDURE [
      interfaceRecord: RpcControl.InterfaceRecord ] =
    TRUSTED BEGIN
    LupineDetails[interfaceRecord].module.UnimportInterface[];
    FreeInterface[interfaceRecord];
    END;

-- Utility routines for interface instantiation and caching.

  ConcreteLupineDetails: TYPE = REF LupineDetailsObject;

  LupineDetailsObject:  PUBLIC TYPE = RECORD [
        module: ClientModule_NIL,
        list: RpcControl.InterfaceRecord_NIL, --package reference
        next: RpcControl.InterfaceRecord_NIL --free list -- ];

  LupineDetails: PROCEDURE [abstractInterface: RpcControl.InterfaceRecord]
      RETURNS [ConcreteLupineDetails] =
    INLINE {RETURN[abstractInterface.lupineDetails]};

  ClientModule: TYPE = POINTER TO FRAME[AlpineFileRpcClientImpl];


  clientInterfaceCache: RpcControl.InterfaceRecord _ NIL; -- free interface
      -- records
  clientInterfaceList: RpcControl.InterfaceRecord _ NIL; -- all interface
      -- records

  NewInterfaceRecord: PUBLIC SAFE PROCEDURE
    RETURNS [interfaceRecord: RpcControl.InterfaceRecord] =
    TRUSTED BEGIN
    interfaceRecord _ NEW[RpcControl.InterfaceRecordObject];
    END;

  NewInterface: PROCEDURE RETURNS [interface: RpcControl.InterfaceRecord]=
    BEGIN
    GetCachedInterface: ENTRY PROCEDURE
        RETURNS [cachedIR: RpcControl.InterfaceRecord] =
      INLINE BEGIN ENABLE UNWIND => NULL;
      IF (cachedIR_clientInterfaceCache) # NIL
        THEN clientInterfaceCache _ LupineDetails[clientInterfaceCache].next;
      END;
    ReclaimInterfaces[];
    IF (interface _ GetCachedInterface[]) = NIL
      THEN BEGIN
        ChainNewInterface: ENTRY PROCEDURE =
          INLINE BEGIN ENABLE UNWIND => NULL;
          interface.lupineDetails _ NEW[
            LupineDetailsObject _ [module: module, list: clientInterfaceList]];
          clientInterfaceList _ interface;
          END; -- ChainNewInterface.
        module: ClientModule = NEW ClientPrototype;
        interface _ NewInterfaceRecord[];
        interface^ _ [
            Open: module.Open, Create: module.Create, Close: module.Close,
            Delete: module.Delete, GetUniversalFile: module.GetUniversalFile,
            GetTransID: module.GetTransID, GetAccessRights: module.GetAccessRights,
            GetLockOption: module.GetLockOption, SetLockOption: module.SetLockOption,
            GetRecoveryOption: module.GetRecoveryOption, GetReferencePattern:
            module.GetReferencePattern, SetReferencePattern: module.SetReferencePattern,
            ReadPages: module.ReadPages, WritePages: module.WritePages,
            LockPages: module.LockPages, UnlockPages: module.UnlockPages,
            ReadProperties: module.ReadProperties, WriteProperties: module.WriteProperties,
            UnlockVersion: module.UnlockVersion, IncrementVersion: module.IncrementVersion,
            GetSize: module.GetSize, SetSize: module.SetSize, AccessFailed:
            AlpineFile.AccessFailed, LockFailed: AlpineFile.LockFailed,
            OperationFailed: AlpineFile.OperationFailed, StaticallyInvalid:
            AlpineFile.StaticallyInvalid, Unknown: AlpineFile.Unknown,
            PossiblyDamaged: AlpineFile.PossiblyDamaged];
        ChainNewInterface[];
        END;
    RTT.EnableFinalization[interface];
    END;

  FreeInterface: ENTRY PROCEDURE [interface: RpcControl.InterfaceRecord]=
    INLINE BEGIN ENABLE UNWIND => NULL;
    LupineDetails[interface].next _ clientInterfaceCache;
    clientInterfaceCache _ interface;
    END;


-- Finalization for dynamic interfaces.  Just cache and reuse for now.

  freedInterfaces: RTT.FinalizationQueue = RTT.NewFQ[20];

  ReclaimInterfaces: PROCEDURE =
    INLINE BEGIN
    WHILE ~RTT.FQEmpty[freedInterfaces] DO
      interface: RpcControl.InterfaceRecord =
        NARROW[RTT.FQNext[freedInterfaces]];
      IF interface.lupineDetails # NIL THEN
        UnimportNewInterface[interface];
      ENDLOOP;
    END;


-- Module initialization.

  RTT.EstablishFinalization[
    type: CODE[RpcControl.InterfaceRecordObject],
    npr: 1,  fq: freedInterfaces ];


END.  -- AlpineFileRpcBinderImpl.