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162 | -- --
-- package Copyright (c) Dmitry A. Kazakov --
-- GNAT.Sockets.Connection_State_Machine. Luebeck --
-- ASN1.Sets Summer, 2019 --
-- Interface --
-- Last revision : 13:37 03 Aug 2019 --
-- --
-- This library is free software; you can redistribute it and/or --
-- modify it under the terms of the GNU General Public License as --
-- published by the Free Software Foundation; either version 2 of --
-- the License, or (at your option) any later version. This library --
-- is distributed in the hope that it will be useful, but WITHOUT --
-- 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 along with --
-- this library; if not, write to the Free Software Foundation, --
-- Inc., 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. --
--____________________________________________________________________--
--
-- ASN.1 encoding of sets
--
with GNAT.Sockets.Connection_State_Machine.ASN1.Lengths;
use GNAT.Sockets.Connection_State_Machine.ASN1.Lengths;
package GNAT.Sockets.Connection_State_Machine.ASN1.Sets is
--
-- Reference_Data_Item -- ASN.1 encoded object of any type. The target
-- object is kept externally in a container
-- object. The object itself must contain no items.
--
type Reference_Data_Item is abstract new ASN1_Data_Item with private;
--
-- Always_Constructed -- Overrides ...Connection_State_Machine.ASN1...
--
function Always_Constructed
( Item : Reference_Data_Item
) return Boolean;
--
-- Create -- A new element for the set
--
-- Item - The set
--
-- The derived type must implement this function in order to have a
-- a specific data type to allocate. The element must be allocated in
-- the pool obtained by Get_Container.
--
-- Returns :
--
-- A new element for the set
--
function Create
( Item : access Reference_Data_Item
) return Abstract_ASN1_Data_Item_Ptr is abstract;
--
-- Encode -- Overrides ...Connection_State_Machine.ASN1...
--
procedure Encode
( Item : Reference_Data_Item;
Data : in out Stream_Element_Array;
Pointer : in out Stream_Element_Offset
);
--
-- Feed -- Implementation of the feed operation
--
procedure Feed
( Item : in out Reference_Data_Item;
Data : Stream_Element_Array;
Pointer : in out Stream_Element_Offset;
Client : in out State_Machine'Class;
State : in out Stream_Element_Offset
);
--
-- Get_ASN1_Type -- Overrides ...Connection_State_Machine.ASN1...
--
function Get_ASN1_Type
( Item : Reference_Data_Item
) return ASN1_Type;
--
-- Get_Container -- Get the container used to store set elements
--
-- Item - The item
--
-- Returns :
--
-- A pointer to the container
--
function Get_Container
( Item : Reference_Data_Item
) return External_String_Buffer_Ptr;
--
-- Get_Size -- Overrides ...Connection_State_Machine...
--
function Get_Size
( Item : Reference_Data_Item
) return Natural;
--
-- Get -- Get the actual element
--
-- Item - The referential item
-- Allocate - If true the target is created
--
-- Returns :
--
-- A pointer to the element
--
-- Exceptions :
--
-- Storage_Error - No room in the external buffer
-- Use_Error - Uinitialized
--
function Get
( Item : Reference_Data_Item;
Allocate : Boolean := False
) return Abstract_ASN1_Data_Item_Ptr;
--
-- Is_Implicit -- Overrides ...Connection_State_Machine.ASN1...
--
function Is_Implicit
( Item : Reference_Data_Item
) return Boolean;
private
Invalid_EOC : constant String := "Invalid indefinite ASN.1 " &
"set termination";
Untagged : constant String := "ASN.1 set element is untagged";
Unset : constant String := "ASN.1 reference is unset";
---------------------------------------------------------------------
type Reference_Data_Item is abstract new ASN1_Data_Item with record
List : aliased Sequence (1);
Target : Abstract_ASN1_Data_Item_Ptr;
Container : External_String_Buffer_Ptr;
Registered : Boolean := False;
Notifier : aliased Allocator_Data (Reference_Data_Item'Access);
end record;
type Reference_Data_Item_Ptr is
access all Reference_Data_Item'Class;
function Get_Children
( Item : Reference_Data_Item
) return Data_Item_Ptr_Array;
procedure Enumerate
( Stream : access Root_Stream_Type'Class;
Item : Reference_Data_Item
);
for Reference_Data_Item'Write use Enumerate;
procedure Finalize (Item : in out Reference_Data_Item);
procedure Freed (Item : in out Reference_Data_Item);
procedure Register_Allocator (Item : in out Reference_Data_Item);
function Self
( Item : Reference_Data_Item'Class
) return Reference_Data_Item_Ptr;
procedure Uninitialized (Item : ASN1_Data_Item'Class);
end GNAT.Sockets.Connection_State_Machine.ASN1.Sets;
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