------------------------------------------------------------------------------ -- -- -- GNAT RUN-TIME COMPONENTS -- -- -- -- S Y S T E M . P A R T I T I O N _ I N T E R F A C E -- -- -- -- S p e c -- -- -- -- Copyright (C) 1995-2004 Free Software Foundation, Inc. -- -- -- -- GNARL is free software; you can redistribute it and/or modify it under -- -- terms of the GNU General Public License as published by the Free Soft- -- -- ware Foundation; either version 2, or (at your option) any later ver- -- -- sion. GNARL is distributed in the hope that it will be useful, but WITH- -- -- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY -- -- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License -- -- for more details. You should have received a copy of the GNU General -- -- Public License distributed with GNARL; see file COPYING. If not, write -- -- to the Free Software Foundation, 59 Temple Place - Suite 330, Boston, -- -- MA 02111-1307, USA. -- -- -- -- As a special exception, if other files instantiate generics from this -- -- unit, or you link this unit with other files to produce an executable, -- -- this unit does not by itself cause the resulting executable to be -- -- covered by the GNU General Public License. This exception does not -- -- however invalidate any other reasons why the executable file might be -- -- covered by the GNU Public License. -- -- -- -- GNAT was originally developed by the GNAT team at New York University. -- -- Extensive contributions were provided by Ada Core Technologies Inc. -- -- -- ------------------------------------------------------------------------------ -- This unit may be used directly from an application program by providing -- an appropriate WITH, and the interface can be expected to remain stable. with Ada.Exceptions; with Ada.Streams; with Interfaces; with System.RPC; package System.Partition_Interface is pragma Elaborate_Body; type DSA_Implementation_Name is (No_DSA, GARLIC_DSA, PolyORB_DSA); DSA_Implementation : constant DSA_Implementation_Name := No_DSA; -- RCI receiving stubs contain a table of descriptors for -- all user subprograms exported by the unit. type Subprogram_Id is new Natural; First_RCI_Subprogram_Id : constant := 2; type RCI_Subp_Info is record Addr : System.Address; -- Local address of the proxy object end record; type RCI_Subp_Info_Access is access all RCI_Subp_Info; type RCI_Subp_Info_Array is array (Integer range <>) of aliased RCI_Subp_Info; subtype Unit_Name is String; -- Name of Ada units type Main_Subprogram_Type is access procedure; type RACW_Stub_Type is tagged record Origin : RPC.Partition_ID; Receiver : Interfaces.Unsigned_64; Addr : Interfaces.Unsigned_64; Asynchronous : Boolean; end record; type RACW_Stub_Type_Access is access RACW_Stub_Type; -- This type is used by the expansion to implement distributed objects. -- Do not change its definition or its layout without updating -- exp_dist.adb. type RAS_Proxy_Type is tagged limited record All_Calls_Remote : Boolean; Receiver : System.Address; Subp_Id : Subprogram_Id; end record; type RAS_Proxy_Type_Access is access RAS_Proxy_Type; pragma No_Strict_Aliasing (RAS_Proxy_Type_Access); -- This type is used by the expansion to implement distributed objects. -- Do not change its definition or its layout without updating -- Exp_Dist.Build_Remote_Supbrogram_Proxy_Type. -- The Request_Access type is used for communication between the PCS -- and the RPC receiver generated by the compiler: it contains all the -- necessary information for the receiver to process an incoming call. type RST_Access is access all Ada.Streams.Root_Stream_Type'Class; type Request_Access is record Params : RST_Access; -- A stream describing the called subprogram and its parameters Result : RST_Access; -- A stream where the result, raised exception, or out values, -- are marshalled. end record; procedure Check (Name : Unit_Name; Version : String; RCI : Boolean := True); -- Use by the main subprogram to check that a remote receiver -- unit has has the same version than the caller's one. function Same_Partition (Left : access RACW_Stub_Type; Right : access RACW_Stub_Type) return Boolean; -- Determine whether Left and Right correspond to objects instantiated -- on the same partition, for enforcement of E.4(19). function Get_Active_Partition_ID (Name : Unit_Name) return RPC.Partition_ID; -- Similar in some respects to RCI_Locator.Get_Active_Partition_ID function Get_Active_Version (Name : Unit_Name) return String; -- Similar in some respects to Get_Active_Partition_ID function Get_Local_Partition_ID return RPC.Partition_ID; -- Return the Partition_ID of the current partition function Get_Passive_Partition_ID (Name : Unit_Name) return RPC.Partition_ID; -- Return the Partition_ID of the given shared passive partition function Get_Passive_Version (Name : Unit_Name) return String; -- Return the version corresponding to a shared passive unit function Get_RCI_Package_Receiver (Name : Unit_Name) return Interfaces.Unsigned_64; -- Similar in some respects to RCI_Locator.Get_RCI_Package_Receiver procedure Get_Unique_Remote_Pointer (Handler : in out RACW_Stub_Type_Access); -- Get a unique pointer on a remote object procedure Raise_Program_Error_Unknown_Tag (E : Ada.Exceptions.Exception_Occurrence); pragma No_Return (Raise_Program_Error_Unknown_Tag); -- Raise Program_Error with the same message as E one type RPC_Receiver is access procedure (R : Request_Access); procedure Register_Receiving_Stub (Name : Unit_Name; Receiver : RPC_Receiver; Version : String := ""; Subp_Info : System.Address; Subp_Info_Len : Integer); -- Register the fact that the Name receiving stub is now elaborated. -- Register the access value to the package RPC_Receiver procedure. procedure Get_RAS_Info (Name : Unit_Name; Subp_Id : Subprogram_Id; Proxy_Address : out Interfaces.Unsigned_64); -- Look up the address of the proxy object for the given subprogram -- in the named unit, or Null_Address if not present on the local -- partition. procedure Register_Passive_Package (Name : Unit_Name; Version : String := ""); -- Register a passive package generic RCI_Name : String; package RCI_Locator is function Get_RCI_Package_Receiver return Interfaces.Unsigned_64; function Get_Active_Partition_ID return RPC.Partition_ID; end RCI_Locator; -- RCI package information caching procedure Run (Main : Main_Subprogram_Type := null); -- Run the main subprogram end System.Partition_Interface;