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/*
* Project: HARTIK (HA-rd R-eal TI-me K-ernel)
*
* Coordinators: Giorgio Buttazzo <giorgio@sssup.it>
* Gerardo Lamastra <gerardo@sssup.it>
*
* Authors : Paolo Gai <pj@hartik.sssup.it>
* (see authors.txt for full list of hartik's authors)
*
* ReTiS Lab (Scuola Superiore S.Anna - Pisa - Italy)
*
* http://www.sssup.it
* http://retis.sssup.it
* http://hartik.sssup.it
*/
/**
------------
CVS : $Id: const.h,v 1.6 2004-04-19 15:25:38 giacomo Exp $
File: $File$
Revision: $Revision: 1.6 $
Last update: $Date: 2004-04-19 15:25:38 $
------------
System constants:
- Customizable constants
- Non-Customizable constants
IMPORTANT!!!
This file is used also at assembly level,to have unique
defintion and avoid mess!
**/
/*
* Copyright (C) 2000 Paolo Gai
*
* 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
*
*/
#ifndef __KERNEL_CONST_H__
#define __KERNEL_CONST_H__
#include <ll/i386/tss-ctx.h>
/* -------------------------------------------------------------------- */
/* These constant can be freely changed to customize the kernel */
/* -------------------------------------------------------------------- */
/* Tasks, functions, interrupts, exceptions */
#define MAX_PROC TSSMax-1 /*+ Maximum number of tasks
Change the value in
ll/i386/tss-ctx.h!!!
-1 because there is the
global context!!! +*/
#define MAX_RUNLEVEL_FUNC 40 /*+ Runlevel functions +*/
#define STACK_SIZE 4096U /*+ Stack size in bytes +*/
#define JET_TABLE_DIM 20U /*+ Max n. of Jet entries +*/
#define MAX_CANCPOINTS 20U /*+ maximum number of cancellation
points (look at kill.c) +*/
#define MAX_SIGINTPOINTS 20U /*+ maximum number of signal
interruptable points +*/
/* Levels and modules */
#define MAX_SCHED_LEVEL 30U /*+ Max Schedule levels +*/
#define MAX_RES_LEVEL 8U /*+ Max Resource levels +*/
#define MAX_LEVELNAME 20U /*+ Level Name Max Lenght +*/
#define MAX_MODULENAME 20U /*+ Resource Module Name Max L. +*/
#define MAX_TASKNAME 20U /*+ Task Name Max Length +*/
/* Resource and communication */
#define MAX_CPRINT_BUF 512U /*+ Length of cprintf() buffer +*/
/* -------------------------------------------------------------------- */
/* End of user customazable constants */
/* -------------------------------------------------------------------- */
/*+ this is the bandwidth used in the on-line guarantee algorithm
the value means x/MAX_BANDWIDTH free bandwidth... +*/
#define MAX_BANDWIDTH MAX_DWORD
/*+ STATUS attributes are divided in 2 sets:
- kernel status set (FREE, EXE, SLEEP, IDLE)
- scheduling modules status set (the remainings status! READY...)
the values are in the range [MODULE_STATUS_BASE, APER_STATUS_BASE-1]
- aperiodic servers status set
the minimum value is APER_STATUS_BASE
The statuses must be separated because an aperiodic server may,
for example put an event that checks a task state;
+*/
#define FREE 0
#define EXE 1
#define SLEEP 2
#define WAIT_JOIN 3
#define WAIT_COND 4
#define WAIT_SIG 5
#define WAIT_SEM 6
#define WAIT_NANOSLEEP 7
#define WAIT_SIGSUSPEND 8
#define WAIT_MQSEND 9
#define WAIT_MQRECEIVE 10
/*+ base status for scheduling levels +*/
#define MODULE_STATUS_BASE 128
/*+ base status for aperiodic servers +*/
#define APER_STATUS_BASE 1024
/*+ base status for libraries +*/
#define LIB_STATUS_BASE 2048
/*+ return value for killed tasks; it is equal to PTHREAD_CANCELED!!! +*/
#define TASK_CANCELED (void *)1
/*+ Set the cancellation state of the task +*/
#define TASK_CANCEL_ENABLE KILL_ENABLED
#define TASK_CANCEL_DISABLE 0
/*+ Set the cancellation type of the task +*/
#define TASK_CANCEL_DEFERRED KILL_DEFERRED
#define TASK_CANCEL_ASYNCHRONOUS 0
/* C stuff */
#ifndef NIL
#define NIL -1 /*+ integer unvalid value +*/
#endif
/*+ Blocking attribute for semaphore, port & keyboard operations +*/
#define BLOCK 1
#define NON_BLOCK 0
#define DEFAULT (DWORD)-1
/*+ sys_atrunlevel status bit values: used to signal that the function
has to be called +*/
#define RUNLEVEL_STARTUP 0 /*+ startup in real mode +*/
#define RUNLEVEL_INIT 1 /*+ init time +*/
#define RUNLEVEL_RUNNING 2 /*+ system is running!!! +*/
#define RUNLEVEL_SHUTDOWN 3 /*+ shutting down the system +*/
#define RUNLEVEL_BEFORE_EXIT 4 /*+ before the kernel has been terminated +*/
#define RUNLEVEL_AFTER_EXIT 5 /*+ after the kernel has been terminated +*/
#define RUNLEVEL_MASK 0x7 /*+ a mask used into kernel/init.c +*/
#define NO_AT_ABORT 8 /*+ only when sys_end is called +*/
#endif /* __CONST_H__ */