/usr/share/ada/adainclude/dbus-ada/d_bus-service.ads 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.Strings.Unbounded;
with Ada.Containers.Ordered_Maps;
with D_Bus.Messages;
package D_Bus.Service is
type Method_Handle is access procedure
(Request : Messages.Message_Type;
Reply : out Messages.Message_Type);
-- Method handler.
type Object is abstract tagged private;
-- D-Bus service object. Extend this type to provide your own services on
-- the bus.
procedure Initialize (Obj : in out Object) is abstract;
-- Initialize a service object.
procedure Register
(Obj : in out Object;
Name : String;
Method : Method_Handle);
-- Register a service method with given name.
procedure Call
(Obj : Object;
Name : String;
Request : Messages.Message_Type;
Reply : out Messages.Message_Type);
-- Call method with given name.
Duplicate_Method : exception;
Unknown_Method : exception;
private
use Ada.Strings.Unbounded;
package Methods_Map is new Ada.Containers.Ordered_Maps
(Key_Type => Unbounded_String,
Element_Type => Method_Handle);
package MM renames Methods_Map;
type Object is abstract tagged record
Methods : MM.Map;
end record;
end D_Bus.Service;
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