------------------------------------------------------------------------------
------------------------------------------------------------------------------
-- Cheddar is a GNU GPL real-time scheduling analysis tool.
-- This program provides services to automatically check schedulability and
-- other performance criteria of real-time architecture models.
--
-- Copyright (C) 2002-2016, Frank Singhoff, Alain Plantec, Jerome Legrand
--
-- The Cheddar project was started in 2002 by 
-- Frank Singhoff, Lab-STICC UMR 6285 laboratory, Université de Bretagne Occidentale
-- 
-- Cheddar has been published in the "Agence de Protection des Programmes/France" in 2008. 
-- Since 2008, Ellidiss technologies also contributes to the development of 
-- Cheddar and provides industrial support.
--
-- The full list of contributors and sponsors can be found in AUTHORS.txt and SPONSORS.txt
--
-- 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
--
--
-- Contact : cheddar@listes.univ-brest.fr
--           
------------------------------------------------------------------------------
-- Last update : 
--    $Rev: 1249 $
--    $Date: 2014-08-28 07:02:15 +0200 (Fri, 28 Aug 2014) $
--    $Author: singhoff $
------------------------------------------------------------------------------
------------------------------------------------------------------------------

with Ada.IO_Exceptions;use Ada.IO_Exceptions;
with GNAT.Current_Exception; use GNAT.Current_Exception;
with unbounded_strings;      use unbounded_strings;
with GNAT.Command_Line;      use GNAT.Command_Line;
with GNAT.OS_Lib;            use GNAT.OS_Lib;
with Text_IO;                use Text_IO;
with Version;                use Version;
with Ada.Strings.Unbounded;  use Ada.Strings.Unbounded;
with Systems;                use Systems;
with Dependencies;           use Dependencies;
with Task_Dependencies;      use Task_Dependencies;
with Task_Set;               use Task_Set;
use Task_Set.Generic_Task_Set;
use Task_Dependencies.Half_Dep_Set;
with Processor_Set;          use Processor_Set;
use Processor_Set.Generic_Processor_Set;
with Address_Space_Set;      use Address_Space_Set;
use Address_Space_Set.Generic_Address_Space_Set;
with Resource_Set;           use Resource_Set;
use Resource_Set.Generic_Resource_Set;
with Buffer_Set;             use Buffer_Set;
use Buffer_Set.Generic_Buffer_Set;
with Call_Framework;         use Call_Framework;
with Tasks;                  use Tasks;
with Address_Spaces;         use Address_Spaces;
with unbounded_strings;      use unbounded_strings;
use unbounded_strings.unbounded_string_list_package;
with Debug;                  use Debug;

package body applicability_constraint.data_sharing_protocol is

   function R6_QUERY1_Condition (d1 : Dependency_Ptr) return Boolean is
   begin

      return (not (d1.type_of_dependency =
                   Time_Triggered_Communication_Dependency));

   end R6_QUERY1_Condition;

   function R6_QUERY2_Condition (d2 : Dependency_Ptr) return Boolean is
   begin

      return (not ((d2.time_triggered_timing_property = Sampled_Timing) or
                   (d2.time_triggered_timing_property = Immediate_Timing) or
                   (d2.time_triggered_timing_property = Delayed_Timing)));

   end R6_QUERY2_Condition;

   function R6_QUERY3_Condition (d3 : Dependency_Ptr) return Boolean is
   begin

      return (d3.type_of_dependency =
              Time_Triggered_Communication_Dependency);

   end R6_QUERY3_Condition;

   function R6 (Sys : System) return Boolean is
   begin
      Context := Sys;
      return (get_number_of_elements
                 (select_and_copy
                     (Context.Dependencies.Depends,
                      R6_QUERY1_Condition'Access)) =
              Tasks_Dependencies_Range (0)) and
             (get_number_of_elements
                 (select_and_copy
                     ((select_and_copy
                          (Context.Dependencies.Depends,
                           R6_QUERY3_Condition'Access)),
                      R6_QUERY2_Condition'Access)) =
              Tasks_Dependencies_Range (0));

   end R6;
   function R6_Txt return Unbounded_String is
   begin

      return ("The constraint R6 is not met:") &
             unbounded_lf &
             (
"data sharing protocol : port connections with sample, immediate or delayed timing."
) &
             unbounded_lf;

   end R6_Txt;

end applicability_constraint.data_sharing_protocol;