| 0,0 → 1,152 |
|---|
| /* |
| * Project: S.Ha.R.K. |
| * |
| * Coordinators: |
| * Giorgio Buttazzo <giorgio@sssup.it> |
| * Paolo Gai <pj@gandalf.sssup.it> |
| * |
| * Authors : |
| * Paolo Gai <pj@gandalf.sssup.it> |
| * Massimiliano Giorgi <massy@gandalf.sssup.it> |
| * Luca Abeni <luca@gandalf.sssup.it> |
| * (see the web pages for full authors list) |
| * |
| * ReTiS Lab (Scuola Superiore S.Anna - Pisa - Italy) |
| * |
| * http://www.sssup.it |
| * http://retis.sssup.it |
| * http://shark.sssup.it |
| */ |
| |
| /** |
| ------------ |
| CVS : $Id: tdstar.h,v 1.1 2004-12-17 13:21:34 trimarchi Exp $ |
| |
| File: $File$ |
| Revision: $Revision: 1.1 $ |
| Last update: $Date: 2004-12-17 13:21:34 $ |
| ------------ |
| |
| Title: |
| TDSTAR |
| |
| Task Models Accepted: |
| HARD_TASK_MODEL - Hard Tasks (only Periodic) |
| wcet field and mit field must be != 0. They are used to set the wcet |
| and period of the tasks. |
| periodicity field can be only PERIODIC |
| drel field is ignored |
| |
| Guest Models Accepted: |
| JOB_TASK_MODEL - a single guest task activation |
| Identified by an absolute deadline and a period. |
| period field is ignored |
| |
| Description: |
| |
| This module schedule his tasks following the classic EDF |
| scheme. This module is derived from the EDFACT Scheduling Module. |
| |
| This module can not stay alone: when it have to schedule a task, it |
| simply inserts it into another master module using a |
| BUDGET_TASK_MODEL. |
| |
| No Task guarantee is performed at all. |
| The tasks scheduled are only periodic. |
| All the task are put in a queue and the scheduling is based on the |
| deadline value. |
| If a task miss a deadline a counter is incremented. |
| If a task exausts the wcet a counter is incremented |
| No ZOMBIE support!!!!!! |
| |
| Exceptions raised: |
| XUNVALID_GUEST XUNVALID_TASK |
| some primitives are not implemented: |
| task_sleep, task_delay, guest_endcycle, guest_sleep, guest_delay |
| |
| XACTIVATION |
| If a task is actiated through task_activate or guest_activate more than |
| one time |
| |
| Restrictions & special features: |
| - This level doesn't manage the main task. |
| - Functions to return and reset the nact, wcet and dline miss |
| counters are provided |
| |
| **/ |
| |
| /* |
| * Copyright (C) 2001 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 __TDSTAR_H__ |
| #define __TDSTAR_H__ |
| |
| #include <ll/ll.h> |
| #include <kernel/config.h> |
| #include <sys/types.h> |
| #include <kernel/types.h> |
| |
| |
| typedef struct { |
| int command; |
| void *param; |
| } TDSTAR_command_message; |
| |
| /* flags... */ |
| #define TDSTAR_ENABLE_GUARANTEE 1 /* Task Guarantee enabled */ |
| #define TDSTAR_ENABLE_ALL 1 |
| |
| #define TDSTAR_FAILED_GUARANTEE 8 /* used in the module, unsettabl |
| in EDF_register_level... */ |
| |
| |
| |
| #define TDSTAR_LEVELNAME "TDSTAR base" |
| #define TDSTAR_LEVEL_CODE 166 |
| #define TDSTAR_LEVEL_VERSION 1 |
| |
| |
| /* Registration function: |
| int budget The budget used by this module (see CBSSTAR.h) |
| int master The master module used by EDFSTAR |
| */ |
| LEVEL TDSTAR_register_level(int master); |
| |
| /* returns respectively the number of dline, wcet or nact; -1 if error */ |
| int TDSTAR_get_dline_miss(PID p); |
| int TDSTAR_get_wcet_miss(PID p); |
| int TDSTAR_get_nact(PID p); |
| |
| /* resets respectively the number of dline, wcet miss; -1 if error */ |
| int TDSTAR_reset_dline_miss(PID p); |
| int TDSTAR_reset_wcet_miss(PID p); |
| |
| int TDSTAR_getbudget(LEVEL l, PID p); |
| int TDSTAR_setbudget(LEVEL l, PID p, int budget); |
| int TDSTAR_budget_has_thread(LEVEL l, int budget); |
| |
| void TDSTAR_set_nopreemtive_current(LEVEL l); |
| void TDSTAR_unset_nopreemtive_current(LEVEL l); |
| |
| void TDSTAR_start_simulation(LEVEL l); |
| |
| |
| #endif |
| |