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/*
* Project: S.Ha.R.K.
*
* Coordinators:
* Giorgio Buttazzo <giorgio@sssup.it>
* Paolo Gai <pj@gandalf.sssup.it>
*
* Authors :
* Paolo Gai <pj@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
*/
/*
* 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
*
*
* CVS : $Id: aster3.c,v 1.1 2002-10-28 08:13:37 pj Exp $
Test Number 10 (A):
this is a part of the classic Hartik demo Aster.
it is based on aster2.c, with the use of TBS to serve a set of aperiodic
tasks.
There are APER_MAX tasks sleeping, and when an asteroide task finish
the current activation, it activate also an aperiodic task chosen
randomly (if the task chosen is already active, the task_activate do
nothing!)
*/
#include "kernel/kern.h"
#include "modules//edf.h"
int num_aster
= 0;
#define ASTER_LIM 60
#define DISPLAY_MAX 15
#define ASTER_MAX 70
#define STAT_Y 9
#define APER_MAX 8
/* first numbers runs on a pentium 133, second numbers on a celeron 366 */
#define PER_WCET 30000 /* 6200 */
#define APER_WCET 50000 /* 18400 */
#define CLOCK_WCET 1000 /* 200 */
#define ASTER_WCET 1000 /* 200 */
#define MIN_PERIOD 200 /* 64, in ms */
#define APER_REP 22000
PID aper_table
[APER_MAX
];
TASK asteroide
(void)
{
int i
;
int y
= rand() % 7 + 1;
int load1
,j
;
char s
[2];
s
[0] = '*'; s
[1] = 0;
/*for (;;)*/ {
i
= 1;
while (i
< ASTER_LIM
) {
load1
= 10000; //8000 + rand()%2000;
for (j
=0; j
<load1
; j
++) {
s
[0] = '*' + rand() % 100;
puts_xy
(i
,y
,rand()%15+1,s
);
}
task_activate
(aper_table
[rand()%APER_MAX
]);
task_endcycle
();
puts_xy
(i
,y
,WHITE
," ");
i
++;
}
}
num_aster
--;
return 0;
}
TASK aper_asteroid
(void *a
)
{
int i
;
int y
= rand() % 7 + 1;
int load1
,j
;
int c
;
char s
[2];
c
= (int)a
;
s
[0] = '*'; s
[1] = 0;
for (;;) {
i
= 1;
while (i
< ASTER_LIM
) {
load1
= APER_REP
; //8000 + rand()%2000;
for (j
=0; j
<load1
; j
++) {
s
[0] = '*' + rand() % 100;
puts_xy
(i
,y
,rand()%15+1,s
);
}
s
[0] = c
;
puts_xy
(i
,y
,rand()%15+1,s
);
task_endcycle
();
puts_xy
(i
,y
,WHITE
," ");
i
++;
}
}
}
TASK aster
()
{
PID p
;
HARD_TASK_MODEL m
;
int r
;
int x
; // adaptive bandwidth...
hard_task_default_model
(m
);
hard_task_def_wcet
(m
,PER_WCET
);
hard_task_def_ctrl_jet
(m
);
x
= MIN_PERIOD
;
srand(7);
while (1) {
if (num_aster
< ASTER_MAX
) {
r
= (rand() % 200);
hard_task_def_arg
(m
,(void *)((rand() % 7)+1));
hard_task_def_mit
(m
, (x
+r
)*1000);
p
= task_create
("aaa",asteroide
,&m
,NULL
);
if (p
== -1)
{
if (x
< 500 && errno
!= ENO_AVAIL_TASK
) x
+= 1;
printf_xy
(62,3,WHITE
,"adapt=%3u err=%d",freedesc
,errno
);
}
else {
num_aster
++;
printf_xy
(62,3,WHITE
,"adapt=%3u ",x
);//,errno);
task_activate
(p
);
x
/= 2;
if (x
<50) x
= 50;
}
}
task_endcycle
();
}
}
TASK
clock()
{
int s
= 0, m
= 0;
while(1) {
printf_xy
(62,1,WHITE
,"%2d:%2d ast=%d",m
,s
, num_aster
);
printf_xy
(62,2,WHITE
,"U=%12u",EDF_usedbandwidth
(0));
task_endcycle
();
if (++s
> 59) {
s
= 0;
m
++;
}
printf_xy
(62,1,WHITE
,"%2d:%2d ast=%d",m
,s
, num_aster
);
printf_xy
(62,2,WHITE
,"U=%12u",EDF_usedbandwidth
(0));
task_endcycle
();
}
}
/* we consider the first ASTER_MAX + 2 tasks from the PID 2
and plot on the screen the elapsed times... */
TASK jetcontrol
()
{
int i
; /* a counter */
TIME sum
, max
, curr
, last
[5];
int nact
;
int j
; /* the elements set by jet_gettable */
PID p
;
kern_cli
();
printf_xy
(0,STAT_Y
,WHITE
,"PID ³ Mean T.³ Max T. ³ N.A. ³ Curr. ³ Last1 ³ Last2 ³ Last3 ³ Last4 ³ Last5");
kern_sti
();
for (;;) {
for (i
=0,p
=0; i
<DISPLAY_MAX
+5 && p
<MAX_PROC
; p
++) {
if (jet_getstat
(p
, &sum
, &max
, &nact
, &curr
) == -1) continue;
for (j
=0; j
<5; j
++) last
[j
] = 0;
jet_gettable
(p
, &last
[0], 5);
kern_cli
();
printf_xy
(0,STAT_Y
+i
+1,WHITE
,"%-3d ³ %-6d ³ %-6d ³ %-4d ³ %-7d ³ %-5d ³ %-5d ³ %-5d ³ %-5d ³ %-5d",
p
, (int)sum
/(nact
==0 ? 1 : nact
), (int)max
, (int)nact
, (int)curr
, (int)last
[0], (int)last
[1], (int)last
[2], (int)last
[3], (int)last
[4]);
kern_sti
();
i
++;
}
task_endcycle
();
}
}
int main
(int argc
, char **argv
)
{
PID p1
,p2
;//,p3,p4,p5,p6;
HARD_TASK_MODEL m
;
NRT_TASK_MODEL m_nrt
;
SOFT_TASK_MODEL m_aper
;
int i
;
clear
();
set_exchandler_grx
();
hard_task_default_model
(m
);
hard_task_def_wcet
(m
,ASTER_WCET
);
hard_task_def_mit
(m
,10000);
hard_task_def_group
(m
,1);
hard_task_def_ctrl_jet
(m
);
nrt_task_default_model
(m_nrt
);
nrt_task_def_group
(m_nrt
,1);
nrt_task_def_ctrl_jet
(m_nrt
);
p1
= task_create
("Aster",aster
,&m
,NULL
);
if (p1
== -1) {
perror("test7.c(main): Could not create task <aster> ...");
sys_end
();
}
hard_task_def_mit
(m
,500000);
hard_task_def_wcet
(m
,CLOCK_WCET
);
p2
= task_create
("Clock",clock,&m
,NULL
);
if (p2
== -1) {
perror("test7.c(main): Could not create task <Clock> ...");
sys_end
();
}
soft_task_default_model
(m_aper
);
soft_task_def_wcet
(m_aper
,APER_WCET
);
soft_task_def_ctrl_jet
(m_aper
);
soft_task_def_aperiodic
(m_aper
);
soft_task_def_level
(m_aper
, 2);
aper_table
[0] = task_create
("JetControl",jetcontrol
,&m_aper
,NULL
);
if (aper_table
[0] == -1) {
perror("test7.c(main): Could not create task <JetControl> ...");
sys_end
();
}
for (i
=1; i
<APER_MAX
; i
++) {
soft_task_def_level
(m_aper
, i
/4 + 2);
soft_task_def_arg
(m_aper
, (void *)(i
/4 ? 'Û' : '±'));
aper_table
[i
] = task_create
("aper",aper_asteroid
,&m_aper
,NULL
);
if (aper_table
[i
] == -1) {
perror("test7.c(main): Could not create task <aper> ...");
sys_end
();
}
}
group_activate
(1);
{
struct timespec t
;
do {
sys_gettime
(&t
);
} while (t.
tv_sec < 60);
}
sys_end
();
return 0;
}