------------------------------------------------------------------------------
------------------------------------------------------------------------------
-- 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 $
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with Paes_Utilities;                  use Paes_Utilities;
with Chromosome_Data_Manipulation; use Chromosome_Data_Manipulation;
with Systems;               use Systems;
with Ada.Numerics.Float_Random ; use Ada.Numerics.Float_Random ;
with Ada.Strings.Unbounded;             use Ada.Strings.Unbounded;
with unbounded_strings;                 use unbounded_strings;

-- This package defines a set of objective functions
-- and implements the feasibility checks on candidate
-- solutions of the F2T architecture exploration problem
--
package Objective_Functions_and_Feasibility_Checks is


   -- FitnessFunctions is an array of possible objective functions
   -- that could be combined in order to drive
   -- the design space exploration
   --
   type fitnessFunction is
      record
         Name : Unbounded_String;
         Is_selected : integer; -- 0 ==> is NOT selected | 1 ==> is selected
      end record;

   MAX_FITNESS : constant integer := 11;
   FitnessFunctions : array (1 .. MAX_FITNESS) of fitnessFunction;

   Procedure initialize_FitnessFunctions;

   -- This function checks if a solution is consistent or not :
   -- 1) Check for each task of the candidate solution that Ci <= Di
   -- 2) Check that the total processor Utilization <= 1
   -- 3) check if there are two non-harmonic functions which are
   -- grouped alone in the same task.
   --
   function Check_Feasibility_of_A_Solution (s : in solution; eidx : in Natural) return boolean;


   -- This procedure update a solution "s" with its objective values
   -- by retrieving some informations from its scheduling simulation
   -- results that was done to check its schedulability (throughout
   -- the feasibility checks procedure)
   --
   procedure evaluate_F2T (s : in out solution; eidx : in Natural);

end Objective_Functions_and_Feasibility_Checks;