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/*
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 * Project: S.Ha.R.K.
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 *
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 * Coordinators:
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 *   Giorgio Buttazzo    <giorgio@sssup.it>
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 *   Paolo Gai           <pj@gandalf.sssup.it>
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 *
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 * Authors     :
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 *   Paolo Gai           <pj@gandalf.sssup.it>
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 *   Massimiliano Giorgi <massy@gandalf.sssup.it>
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 *   Luca Abeni          <luca@gandalf.sssup.it>
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 *   (see the web pages for full authors list)
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 *
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 * ReTiS Lab (Scuola Superiore S.Anna - Pisa - Italy)
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 *
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 * http://www.sssup.it
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 * http://retis.sssup.it
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 * http://shark.sssup.it
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 */
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/*
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 * Copyright (C) 2002 Paolo Gai
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 *
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 * This program is free software; you can redistribute it and/or modify
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 * it under the terms of the GNU General Public License as published by
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 * the Free Software Foundation; either version 2 of the License, or
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 * (at your option) any later version.
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 *
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 * This program is distributed in the hope that it will be useful,
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 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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 * GNU General Public License for more details.
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 *
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 * You should have received a copy of the GNU General Public License
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 * along with this program; if not, write to the Free Software
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 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
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 *
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 */
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#ifndef __GRUBSTAR_H__
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#define __GRUBSTAR_H__
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#include <kernel/kern.h>
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#define BUDGET_PCLASS 0x0600                           
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typedef struct {
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  TASK_MODEL t;
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  int b;
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} BUDGET_TASK_MODEL;
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#define budget_task_default_model(m,buf)                          \
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                        task_default_model((m).t, BUDGET_PCLASS), \
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                        (m).b    = (buf);
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/* some constants for registering the Module in the right place */
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#define GRUBSTAR_LEVELNAME       "GRUBSTAR"
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#define GRUBSTAR_LEVEL_CODE       106
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#define GRUBSTAR_LEVEL_VERSION    1
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LEVEL GRUBSTAR_register_level(int n, LEVEL master);
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/* Allocates a budget to be used for an application.
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   Input parameters:
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     Q The budget
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     T The period of the budget
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   Return value:
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     0..N The ID of the budget
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     -1   no more free budgets
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     -2   The budgets allocated locally to this module have bandwidth > 1
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     -3   wrong LEVEL id
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*/
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int GRUBSTAR_setbudget(LEVEL l, TIME Q, TIME T, LEVEL local_scheduler_level, int scheduler_id);
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int GRUBSTAR_removebudget(LEVEL l, int budget);
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int GRUBSTAR_adjust_budget(LEVEL l, TIME Q, TIME T, int budget);
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int GRUBSTAR_getbudgetinfo(LEVEL l, TIME *Q, TIME *T, int budget);
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int GRUBSTAR_was_budget_overran(LEVEL l, int budget);
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int GRUBSTAR_is_active(LEVEL l, int budget);
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int GRUBSTAR_get_local_scheduler_level_from_budget(LEVEL l, int budget);
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int GRUBSTAR_get_local_scheduler_level_from_pid(LEVEL l, PID p);
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int GRUBSTAR_get_local_scheduler_id_from_budget(LEVEL l, int budget);
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int GRUBSTAR_get_local_scheduler_id_from_pid(LEVEL l, PID p);
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#endif
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