/usr/share/ada/adainclude/dbus-ada/d_bus-arguments.adb is in libdbusada0.2-dev 0.2-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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-- D_Bus/Ada - An Ada binding to D-Bus
--
-- Copyright (C) 2011 Reto Buerki <reet@codelabs.ch>
--
-- This program 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 program 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 program; if not, write to the Free Software
-- Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
-- 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.
--
with Ada.Tags;
with Interfaces.C;
with dbus_types_h;
package body D_Bus.Arguments is
package C renames Interfaces.C;
-------------------------------------------------------------------------
procedure Append
(List : in out Argument_List_Type;
New_Item : Argument_Type'Class)
is
begin
List.Data.Append (New_Item => New_Item);
end Append;
-------------------------------------------------------------------------
function Deserialize
(D_Args : not null access dbus_message_h.DBusMessageIter)
return Argument_List_Type
is
use type C.int;
use type dbus_types_h.dbus_bool_t;
Result : Arguments.Argument_List_Type;
begin
loop
declare
Type_Code : C.int;
Type_Char : String (1 .. 1);
Type_Tag : Ada.Tags.Tag;
begin
Type_Code := dbus_message_h.dbus_message_iter_get_arg_type
(arg1 => D_Args);
if Type_Code /= 0 then
Type_Char (1) := Character'Val (Type_Code);
begin
Type_Tag := Ada.Tags.Internal_Tag (Type_Char);
exception
when Ada.Tags.Tag_Error =>
raise D_Bus_Error with "Unknown type code '"
& Type_Char & "' in message";
end;
Arguments.Append
(List => Result,
New_Item => Argument_Type'Class
(Marshaling.Make_Object
(The_Tag => Type_Tag,
Params => D_Args)));
end if;
exit when dbus_message_h.dbus_message_iter_next
(arg1 => D_Args) = 0;
end;
end loop;
return Result;
end Deserialize;
-------------------------------------------------------------------------
function First_Element
(List : Argument_List_Type)
return Argument_Type'Class
is
begin
return List.Data.First_Element;
exception
when Constraint_Error =>
raise No_Arguments with "Argument list is empty";
end First_Element;
-------------------------------------------------------------------------
function Get_Code (Arg : Argument_Type'Class) return Integer
is
Tag : constant String := Get_Tag (Arg);
Code : ASCII_Code;
begin
begin
Code := ASCII_Code'Value (Tag);
exception
when Constraint_Error =>
raise D_Bus_Error with "Argument tag '" & Tag
& "' not found in type code table";
end;
return Code_Table (Code);
end Get_Code;
-------------------------------------------------------------------------
function Get_Count (List : Argument_List_Type) return Natural
is
begin
return Natural (List.Data.Length);
end Get_Count;
-------------------------------------------------------------------------
function Get_Signature (Arg : Basic_Type) return String
is
begin
return Get_Tag (Arg => Argument_Type'Class (Arg));
end Get_Signature;
-------------------------------------------------------------------------
function Get_Tag (Arg : Argument_Type'Class) return String
is
begin
return Ada.Tags.External_Tag (T => Arg'Tag);
end Get_Tag;
-------------------------------------------------------------------------
function Is_Empty (List : Argument_List_Type) return Boolean
is
begin
return List.Data.Is_Empty;
end Is_Empty;
-------------------------------------------------------------------------
procedure Iterate
(List : Argument_List_Type;
Process : not null access procedure (Arg : Argument_Type'Class))
is
procedure Process_Arg (Position : ALP.Cursor);
-- Call the process procedure for an arg in the list.
procedure Process_Arg (Position : ALP.Cursor)
is
Arg : constant Argument_Type'Class := ALP.Element (Position);
begin
Process (Arg);
end Process_Arg;
begin
List.Data.Iterate (Process_Arg'Access);
end Iterate;
-------------------------------------------------------------------------
function Last_Element
(List : Argument_List_Type)
return Argument_Type'Class
is
begin
return List.Data.Last_Element;
exception
when Constraint_Error =>
raise No_Arguments with "Argument list is empty";
end Last_Element;
-------------------------------------------------------------------------
procedure Serialize
(Args : Argument_List_Type;
D_Args : not null access dbus_message_h.DBusMessageIter)
is
procedure To_D_Bus (Arg : Argument_Type'Class);
-- Append given argument to D-Bus message arguments.
procedure To_D_Bus (Arg : Argument_Type'Class)
is
begin
Arg.Serialize (D_Msg => D_Args);
end To_D_Bus;
begin
Arguments.Iterate
(List => Args,
Process => To_D_Bus'Access);
end Serialize;
end D_Bus.Arguments;
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