1 ------------------------------------------------------------------------------
3 -- GNAT RUN-TIME COMPONENTS --
5 -- S Y S T E M . P A R T I T I O N _ I N T E R F A C E --
9 -- Copyright (C) 1995-2004 Free Software Foundation, Inc. --
11 -- GNARL is free software; you can redistribute it and/or modify it under --
12 -- terms of the GNU General Public License as published by the Free Soft- --
13 -- ware Foundation; either version 2, or (at your option) any later ver- --
14 -- sion. GNARL is distributed in the hope that it will be useful, but WITH- --
15 -- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY --
16 -- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License --
17 -- for more details. You should have received a copy of the GNU General --
18 -- Public License distributed with GNARL; see file COPYING. If not, write --
19 -- to the Free Software Foundation, 59 Temple Place - Suite 330, Boston, --
20 -- MA 02111-1307, USA. --
22 -- As a special exception, if other files instantiate generics from this --
23 -- unit, or you link this unit with other files to produce an executable, --
24 -- this unit does not by itself cause the resulting executable to be --
25 -- covered by the GNU General Public License. This exception does not --
26 -- however invalidate any other reasons why the executable file might be --
27 -- covered by the GNU Public License. --
29 -- GNAT was originally developed by the GNAT team at New York University. --
30 -- Extensive contributions were provided by Ada Core Technologies Inc. --
32 ------------------------------------------------------------------------------
34 -- This unit may be used directly from an application program by providing
35 -- an appropriate WITH, and the interface can be expected to remain stable.
41 package System.Partition_Interface is
43 pragma Elaborate_Body;
45 type DSA_Implementation_Name is (No_DSA, GARLIC_DSA, PolyORB_DSA);
46 DSA_Implementation : constant DSA_Implementation_Name := No_DSA;
48 -- RCI receiving stubs contain a table of descriptors for
49 -- all user subprograms exported by the unit.
51 type Subprogram_Id is new Natural;
52 First_RCI_Subprogram_Id : constant := 2;
54 type RCI_Subp_Info is record
55 Addr : System.Address;
56 -- Local address of the proxy object
59 type RCI_Subp_Info_Access is access all RCI_Subp_Info;
60 type RCI_Subp_Info_Array is array (Integer range <>) of
61 aliased RCI_Subp_Info;
63 subtype Unit_Name is String;
66 type Main_Subprogram_Type is access procedure;
68 type RACW_Stub_Type is tagged record
69 Origin : RPC.Partition_ID;
70 Receiver : Interfaces.Unsigned_64;
71 Addr : Interfaces.Unsigned_64;
72 Asynchronous : Boolean;
75 type RACW_Stub_Type_Access is access RACW_Stub_Type;
76 -- This type is used by the expansion to implement distributed objects.
77 -- Do not change its definition or its layout without updating
80 type RAS_Proxy_Type is tagged limited record
81 All_Calls_Remote : Boolean;
82 Receiver : System.Address;
83 Subp_Id : Subprogram_Id;
86 type RAS_Proxy_Type_Access is access RAS_Proxy_Type;
87 pragma No_Strict_Aliasing (RAS_Proxy_Type_Access);
88 -- This type is used by the expansion to implement distributed objects.
89 -- Do not change its definition or its layout without updating
90 -- Exp_Dist.Build_Remote_Supbrogram_Proxy_Type.
95 RCI : Boolean := True);
96 -- Use by the main subprogram to check that a remote receiver
97 -- unit has has the same version than the caller's one.
99 function Same_Partition
100 (Left : access RACW_Stub_Type;
101 Right : access RACW_Stub_Type) return Boolean;
102 -- Determine whether Left and Right correspond to objects instantiated
103 -- on the same partition, for enforcement of E.4(19).
105 function Get_Active_Partition_ID (Name : Unit_Name) return RPC.Partition_ID;
106 -- Similar in some respects to RCI_Locator.Get_Active_Partition_ID
108 function Get_Active_Version (Name : Unit_Name) return String;
109 -- Similar in some respects to Get_Active_Partition_ID
111 function Get_Local_Partition_ID return RPC.Partition_ID;
112 -- Return the Partition_ID of the current partition
114 function Get_Passive_Partition_ID
115 (Name : Unit_Name) return RPC.Partition_ID;
116 -- Return the Partition_ID of the given shared passive partition
118 function Get_Passive_Version (Name : Unit_Name) return String;
119 -- Return the version corresponding to a shared passive unit
121 function Get_RCI_Package_Receiver
122 (Name : Unit_Name) return Interfaces.Unsigned_64;
123 -- Similar in some respects to RCI_Locator.Get_RCI_Package_Receiver
125 procedure Get_Unique_Remote_Pointer
126 (Handler : in out RACW_Stub_Type_Access);
127 -- Get a unique pointer on a remote object
129 procedure Raise_Program_Error_Unknown_Tag
130 (E : Ada.Exceptions.Exception_Occurrence);
131 pragma No_Return (Raise_Program_Error_Unknown_Tag);
132 -- Raise Program_Error with the same message as E one
134 procedure Register_Receiving_Stub
136 Receiver : RPC.RPC_Receiver;
137 Version : String := "";
138 Subp_Info : System.Address;
139 Subp_Info_Len : Integer);
140 -- Register the fact that the Name receiving stub is now elaborated.
141 -- Register the access value to the package RPC_Receiver procedure.
143 procedure Get_RAS_Info
145 Subp_Id : Subprogram_Id;
146 Proxy_Address : out Interfaces.Unsigned_64);
147 -- Look up the address of the proxy object for the given subprogram
148 -- in the named unit, or Null_Address if not present on the local
151 procedure Register_Passive_Package
153 Version : String := "");
154 -- Register a passive package
158 package RCI_Locator is
159 function Get_RCI_Package_Receiver return Interfaces.Unsigned_64;
160 function Get_Active_Partition_ID return RPC.Partition_ID;
162 -- RCI package information caching
164 procedure Run (Main : Main_Subprogram_Type := null);
165 -- Run the main subprogram
167 end System.Partition_Interface;