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1120 pj 1
/*
2
 * Project: S.Ha.R.K.
3
 *
4
 * Coordinators:
5
 *   Giorgio Buttazzo    <giorgio@sssup.it>
6
 *   Paolo Gai           <pj@gandalf.sssup.it>
7
 *
8
 * Authors     :
9
 *   Paolo Gai           <pj@gandalf.sssup.it>
10
 *   (see the web pages for full authors list)
11
 *
12
 * ReTiS Lab (Scuola Superiore S.Anna - Pisa - Italy)
13
 *
14
 * http://www.sssup.it
15
 * http://retis.sssup.it
16
 * http://shark.sssup.it
17
 */
18
 
19
/*
20
 * Copyright (C) 2000 Paolo Gai
21
 *
22
 * This program is free software; you can redistribute it and/or modify
23
 * it under the terms of the GNU General Public License as published by
24
 * the Free Software Foundation; either version 2 of the License, or
25
 * (at your option) any later version.
26
 *
27
 * This program is distributed in the hope that it will be useful,
28
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
29
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
30
 * GNU General Public License for more details.
31
 *
32
 * You should have received a copy of the GNU General Public License
33
 * along with this program; if not, write to the Free Software
34
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
35
 *
36
 *
1552 pj 37
 * CVS :        $Id: aster4.c,v 1.5 2005-02-25 11:10:46 pj Exp $
1120 pj 38
 
39
 Test Number 13 (D):
40
 
41
 this is a part of the classic Hartik demo Aster, and it is based on aster 3.
42
 
43
 The demo creates:
44
 - a set of TBS tasks assigned to 2 TBS servers initialized with different bandwidth.
45
 
46
 - a set of periodic tasks, just to make noise (function asteroide)
47
 
48
 - a set of CBS tasks that are created to fill the available free
49
   bandwidth (function soft_aster)
50
 
51
 - a few service task (the one that creates the CBS tasks (aster), a clock,
52
   JET info visualization
53
 
54
 - a set of never ending "system tasks" that simulate a device driver
55
   task that will end only at shutdown (function aper_asteroid)
56
 
57
 - a keyboard task that will execute an hook to terminate the system
58
 
59
*/
60
 
61
/*
62
 * Copyright (C) 2000 Paolo Gai
63
 *
64
 * This program is free software; you can redistribute it and/or modify
65
 * it under the terms of the GNU General Public License as published by
66
 * the Free Software Foundation; either version 2 of the License, or
67
 * (at your option) any later version.
68
 *
69
 * This program is distributed in the hope that it will be useful,
70
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
71
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
72
 * GNU General Public License for more details.
73
 *
74
 * You should have received a copy of the GNU General Public License
75
 * along with this program; if not, write to the Free Software
76
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
77
 *
78
 */
79
 
80
#include "kernel/kern.h"
1552 pj 81
#include "edf/edf/edf.h"
82
#include "cbs/cbs/cbs.h"
1120 pj 83
 
1377 giacomo 84
#include <drivers/shark_linuxc26.h>
85
#include <drivers/shark_input26.h>
86
#include <drivers/shark_keyb26.h>
87
 
1120 pj 88
int num_aster = 0;
89
#define ASTER_LIM       60
90
#define DISPLAY_MAX     15
91
#define ASTER_MAX       70
92
#define STAT_Y           9
93
 
94
#define PER_MAX          5
95
#define APER_MAX         8
96
 
97
// These numbers works on a Pentium 133 */
98
#define PER_WCET     25000
99
#define APER_WCET    53000
100
#define CLOCK_WCET    1000
101
#define ASTER_WCET    1000
102
#define SOFT_MET      6300
103
 
104
#define APER_REP     22000
105
 
106
PID aper_table[APER_MAX];
107
 
1547 pj 108
int shutting_down = 0;
109
 
1120 pj 110
TASK asteroide(void)
111
{
112
  int i;
113
  int y = rand() % 7 + 1;
114
 
115
  int load1,j;
116
 
117
  char s[2];
118
 
119
  s[0] = '*'; s[1] = 0;
120
 
121
  for (;;) {
122
    i = 1;
123
    while (i < ASTER_LIM) {
124
      load1 = 10000; //8000 + rand()%2000;
125
      for (j=0; j<load1; j++) {
126
        s[0] = '*' + rand() % 100;
127
        puts_xy(i,y,rand()%15+1,s);
128
      }
129
 
130
      task_activate(aper_table[rand()%APER_MAX]);
131
      task_endcycle();
132
 
133
      puts_xy(i,y,WHITE," ");
134
      i++;
135
    }
136
  }
137
  //num_aster--;
138
}
139
 
140
TASK aper_asteroid(void *a)
141
{
142
  int i;
143
  int y = rand() % 7 + 1;
144
 
145
  int load1,j;
146
  int c;
147
 
148
  char s[2];
149
 
150
  c = (int)a;
151
  s[0] = '*'; s[1] = 0;
152
 
153
  for (;;) {
154
    i = 1;
155
    while (i < ASTER_LIM) {
156
      load1 = APER_REP; //8000 + rand()%2000;
157
      for (j=0; j<load1; j++) {
158
        s[0] = '*' + rand() % 100;
159
        puts_xy(i,y,rand()%15+1,s);
160
      }
161
      s[0] = c;
162
      puts_xy(i,y,rand()%15+1,s);
163
 
1547 pj 164
      if (shutting_down) {
165
        cprintf("Ending System Task %d\n",exec_shadow);
166
        return 0;
167
      }
168
 
1120 pj 169
      task_endcycle();
170
 
171
      puts_xy(i,y,WHITE," ");
172
      i++;
173
    }
174
  }
175
}
176
 
177
TASK soft_aster(void)
178
{
179
  int i;
180
  int y = rand() % 7 + 1;
181
 
182
  int load1,j;
183
 
184
  char s[2];
185
 
186
  s[0] = '*'; s[1] = 0;
187
 
188
  i = 1;
189
  while (i < ASTER_LIM) {
190
    load1 = 1000 + rand()%9000;
191
    for (j=0; j<load1; j++) {
192
      s[0] = '*' + rand() % 100;
193
      puts_xy(i,y,rand()%15+1,s);
194
    }
195
    s[0] = 1;
196
    puts_xy(i,y,rand()%15+1,s);
197
 
198
    task_activate(aper_table[rand()%APER_MAX]);
199
    task_endcycle();
200
 
201
    puts_xy(i,y,WHITE," ");
202
    i++;
203
  }
204
  num_aster--;
205
  return 0;
206
}
207
 
208
TASK aster()
209
{
210
  PID p;
211
 
212
  HARD_TASK_MODEL m;
213
  SOFT_TASK_MODEL m_soft;
214
  int r;
215
  int x; // adaptive bandwidth...
216
 
217
  srand(7);
218
 
219
  /* create a set of periodic tasks, just to make noise */
220
  hard_task_default_model(m);
221
  hard_task_def_wcet(m,PER_WCET);
222
  hard_task_def_ctrl_jet(m);
223
  for (x=0; x<PER_MAX; x++) {
224
    r = (rand() % 200);
225
    hard_task_def_mit(m, (64+r)*1000);
226
    p = task_create("per",asteroide,&m,NULL);
227
    if (p!=-1) task_activate(p);
228
  }
229
 
230
  soft_task_default_model(m_soft);
231
  soft_task_def_met(m_soft,SOFT_MET);
232
  soft_task_def_ctrl_jet(m_soft);
233
 
234
  x = 64;
235
 
236
  while (1) {
237
    if (num_aster < ASTER_MAX) {
238
      r = (rand() % 200);
239
 
240
      soft_task_def_period(m_soft, (x+r)*1000);
241
      p = task_create("aaa",soft_aster,&m_soft,NULL);
242
      if (p == -1)
243
        {
244
          if (x < 500 && errno != ENO_AVAIL_TASK)  x += 1;
245
          printf_xy(62,3,WHITE,"adapt=%3u err=%d",
246
                    iq_query_first(&freedesc),errno);
247
        }
248
      else {
249
        num_aster++;
250
        printf_xy(62,3,WHITE,"adapt=%3u           ",x);//,errno);
251
        task_activate(p);
252
        x /= 2;
253
        if (x<50) x = 50;
254
      }
255
    }
256
    task_endcycle();
257
  }
258
}
259
 
260
TASK clock()
261
{
262
  int s = 0, m = 0;
263
 
264
  while(1) {
265
    printf_xy(62,1,WHITE,"%2d:%2d ast=%d",m,s, num_aster);
1388 giacomo 266
    printf_xy(62,2,WHITE,"Uedf=%12u",EDF_usedbandwidth(1));
267
    printf_xy(62,4,WHITE,"Ucbs=%12u",CBS_usedbandwidth(5));
1120 pj 268
    task_endcycle();
269
 
270
    if (++s > 59) {
271
      s = 0;
272
      m++;
273
    }
274
    printf_xy(62,1,WHITE,"%2d:%2d ast=%d",m,s, num_aster);
1388 giacomo 275
    printf_xy(62,2,WHITE,"Uedf=%12u",EDF_usedbandwidth(1));
276
    printf_xy(62,4,WHITE,"Ucbs=%12u",CBS_usedbandwidth(5));
1120 pj 277
    task_endcycle();
278
  }
279
}
280
 
281
/* we consider the first ASTER_MAX + 2 tasks from the PID 2
282
   and plot on the screen the elapsed times... */
283
TASK jetcontrol()
284
{
285
  int i;  /* a counter */
286
  TIME sum, max, curr, last[5];
287
  int nact;
288
  int j; /* the elements set by jet_gettable */
289
  PID p;
290
 
291
 
292
  kern_cli();
293
  printf_xy(0,STAT_Y,WHITE,"PID  Mean T. Max T.  N.A.  Curr.    Last1  Last2  Last3  Last4  Last5");
294
  kern_sti();
295
 
296
  for (;;) {
297
    for (i=0,p=0; i<DISPLAY_MAX+5 && p<MAX_PROC; p++) {
298
      if (jet_getstat(p, &sum, &max, &nact, &curr) == -1 ||
299
          (proc_table[p].pclass & 0xFF00) == HARD_PCLASS) continue;
300
 
301
      for (j=0; j<5; j++) last[j] = 0;
302
      jet_gettable(p, &last[0], 5);
303
      kern_cli();
1388 giacomo 304
      if (proc_table[p].task_level == 5)
1120 pj 305
        printf_xy(0,STAT_Y+i+1,WHITE,"%-3d  %-6d  %-6d  %-4d  %-7d  %-5d  %-5d  %-5d  %-5d  %-5d",
306
                  p, (int)sum/(nact==0 ? 1 : nact), (int)max, nact, (int)CBS_get_nact(4,p), (int)last[0], (int)last[1], (int)last[2], (int)last[3], (int)last[4]);
307
      else
308
        printf_xy(0,STAT_Y+i+1,WHITE,"%-3d  %-6d  %-6d  %-4d  %-7d  %-5d  %-5d  %-5d  %-5d  %-5d",
309
                  p, (int)sum/(nact==0 ? 1 : nact), (int)max, nact, (int)curr, (int)last[0], (int)last[1], (int)last[2], (int)last[3], (int)last[4]);
310
      kern_sti();
311
      i++;
312
    }
313
  }
314
}
315
 
316
void endfun(KEY_EVT *k)
317
{
1547 pj 318
  exit(0);
1120 pj 319
}
320
 
1547 pj 321
void exiting(void *arg)
322
{
323
  cprintf("System shut down...\n");
324
  shutting_down = 1;
325
}
326
 
1120 pj 327
int main(int argc, char **argv)
328
{
329
  KEY_EVT k;
330
 
331
  PID p1,p2,p3;
332
  HARD_TASK_MODEL m;
333
  SOFT_TASK_MODEL m_aper;
334
  SOFT_TASK_MODEL m_soft;
335
  int i;
336
 
337
  k.flag = 0;
338
  k.scan = KEY_ENT;
339
  k.ascii = 13;
1377 giacomo 340
  k.status = KEY_PRESSED;
341
  keyb_hook(k, endfun, FALSE);
1120 pj 342
 
343
  clear();
344
  cprintf("Press ENTER to end the demo...");
1547 pj 345
 
346
  sys_atrunlevel(exiting, NULL, RUNLEVEL_SHUTDOWN);
1120 pj 347
 
348
  hard_task_default_model(m);
349
  hard_task_def_wcet(m,ASTER_WCET);
350
  hard_task_def_mit(m,10000);
351
  hard_task_def_group(m,1);
352
  hard_task_def_ctrl_jet(m);
353
 
354
  soft_task_default_model(m_soft);
355
  soft_task_def_met(m_soft,1000);
356
  soft_task_def_period(m_soft,100000);
357
  soft_task_def_group(m_soft,1);
358
  soft_task_def_ctrl_jet(m_soft);
359
  soft_task_def_aperiodic(m_soft);
360
 
361
  p1 = task_create("Aster",aster,&m,NULL);
362
  if (p1 == -1) {
1377 giacomo 363
    sys_shutdown_message("aster4.c(main): Could not create task <aster> ...");
1547 pj 364
    exit(0);
1120 pj 365
  }
366
 
367
  hard_task_def_mit(m,500000);
368
  hard_task_def_wcet(m,CLOCK_WCET);
369
  p2 = task_create("Clock",clock,&m,NULL);
370
  if (p2 == -1) {
1377 giacomo 371
    sys_shutdown_message("aster4.c(main): Could not create task <Clock> ...");
1547 pj 372
    exit(0);
1120 pj 373
  }
374
 
375
  p3 = task_create("JetControl",jetcontrol,&m_soft,NULL);
376
  if (p3 == -1) {
1377 giacomo 377
    sys_shutdown_message("aster4.c(main): Could not create task <JetControl> ...");
1547 pj 378
    exit(0);
1120 pj 379
  }
380
 
381
  soft_task_default_model(m_aper);
382
  soft_task_def_wcet(m_aper,APER_WCET);
383
  soft_task_def_ctrl_jet(m_aper);
384
  soft_task_def_system(m_aper);
385
  soft_task_def_aperiodic(m_aper);
386
 
387
  for (i=0; i<APER_MAX; i++) {
1388 giacomo 388
    soft_task_def_level(m_aper, i/4 + 3);
1120 pj 389
    soft_task_def_arg(m_aper, (void *)(i/4 ? '' : ''));
390
    aper_table[i] = task_create("aper",aper_asteroid,&m_aper,NULL);
391
    if (aper_table[i] == -1) {
1377 giacomo 392
      sys_shutdown_message("aster4.c(main): Could not create task <aper> ...");
1547 pj 393
      exit(0);
1120 pj 394
    }
395
  }
396
 
397
  group_activate(1);
398
  return 0;
399
}
400