// src/backend/policy.hh - Copyright 2005, 2006, University
//               of Padova, dept. of Pure and Applied
//               Mathematics
//
// This file is part of SGPEMv2.
//
// This 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.
//
// SGPEMv2 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 SGPEMv2; if not, write to the Free Software
// Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA

#ifndef POLICY_HH
#define POLICY_HH 1

#include "config.h"
#include "gettext.h"

#include "glibmm/ustring.h"

#include "scheduler.hh"
#include "policy_parameters.hh"

namespace sgpem
{

	class Policy;
	
  /**	\brief 
		e' una Strategy che rappresenta un algoritmo di scheduling che implementa una politica
  		di scheduling.
  */			   
	class SG_DLLEXPORT Policy 
	{
	public:
		virtual ~Policy();
				
		virtual void			configure() = 0;
		virtual void 			sort_queue(sgpem::Scheduler::event) const = 0;
		int 					get_id() const;
		virtual Glib::ustring 	get_description() const = 0;
		virtual bool 			is_pre_emptive() const = 0;
		virtual int				get_time_slice() const = 0;
		virtual void 			set_time_slice(const int&) = 0;
		
		PolicyParameters& get_parameters();
		
		
	protected:
		PolicyParameters 	_parameters;
		int			_id;
	};
	
}//~ namespace sgpem


#endif