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1099 pj 1
/*
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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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 *   (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) 2000 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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 *
1377 giacomo 37
 * CVS :        $Id: aster2.c,v 1.3 2004-04-17 11:36:12 giacomo Exp $
1099 pj 38
 
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 this is a part of the classic Hartik demo Aster.
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 It checks:
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 - jet functions
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 - The EDF level with many task, with almost full bandwidth used
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*/
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#include "kernel/kern.h"
1377 giacomo 49
#include "modules/edf.h"
1099 pj 50
 
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int num_aster = 0;
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#define ASTER_LIM       60
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#define DISPLAY_MAX     15
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#define ASTER_MAX       70
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#define STAT_Y           9
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// first numbers for wcet and periods are for a 486/25, the others for a 
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// celeron 366
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#define PER_WCET     13000 /*6200*/
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#define CLOCK_WCET    1200 /* 100*/
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#define ASTER_WCET    1200 /* 100*/
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#define ASTER_MEAN_PERIOD 64 /*64*/
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#define END_TEST_TIME  60
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TASK asteroide(void)
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{
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  int i;
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  int y = rand() % 7 + 1;
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  int load1,j;
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  char s[2];
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  s[0] = '*'; s[1] = 0;
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79
  /*for (;;)*/ {
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    i = 1;
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    while (i < ASTER_LIM) {
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      load1 = 1000; //10000; // 5000 + rand()%5000;
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      for (j=0; j<load1; j++) {
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        s[0] = '*' + rand() % 100;
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        puts_xy(i,y,rand()%15+1,s);
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      }
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      task_endcycle();
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      puts_xy(i,y,WHITE," ");
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      i++;
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    }
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  }
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  num_aster--;
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  return 0;
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}
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TASK aster()
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{
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  PID p;
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102
  HARD_TASK_MODEL m;
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  int r;
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  int x; // adaptive bandwidth...
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106
  hard_task_default_model(m);
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  hard_task_def_wcet(m,PER_WCET);
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  hard_task_def_ctrl_jet(m);
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110
  x = ASTER_MEAN_PERIOD;
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112
  srand(7);
113
  while (1) {
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    if (num_aster < ASTER_MAX) {
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      r = (rand() % 200);
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      hard_task_def_arg(m,(void *)((rand() % 7)+1));
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      hard_task_def_mit(m, (x+r)*1000);
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      p = task_create("aaa",asteroide,&m,NULL);
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      if (p == -1)
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        {
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          if (x < 500 && errno != ENO_AVAIL_TASK)  x += 1;
1119 pj 123
          printf_xy(62,3,WHITE,"adapt=%3u err=%d",
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                    iq_query_first(&freedesc),errno);
1099 pj 125
        }
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      else {
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        num_aster++;
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        printf_xy(62,3,WHITE,"adapt=%3u           ",x);//,errno);
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        task_activate(p);
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        x /= 2;
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        if (x<50) x = 50;
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      }
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    }
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    task_endcycle();
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  }
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}
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TASK clock()
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{
140
  int s = 0, m = 0;
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142
  while(1) {
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    printf_xy(62,1,WHITE,"%2d:%2d ast=%d",m,s, num_aster);
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    printf_xy(62,2,WHITE,"U=%12u",EDF_usedbandwidth(0));
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    task_endcycle();
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    if (++s > 59) {
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      s = 0;
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      m++;
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    }
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    printf_xy(62,1,WHITE,"%2d:%2d ast=%d",m,s, num_aster);
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    printf_xy(62,2,WHITE,"U=%12u",EDF_usedbandwidth(0));
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    task_endcycle();
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  }
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}
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/* we consider the first ASTER_MAX + 2 tasks from the PID 2
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   and plot on the screen the elapsed times... */
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TASK jetcontrol()
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{
163
  int i;  /* a counter */
164
  TIME sum, max, curr, last[5];
165
  int nact;
166
  int j; /* the elements set by jet_gettable */
167
  PID p;
168
 
169
 
170
  kern_cli();
171
  printf_xy(0,STAT_Y,WHITE,"PID  Mean T. Max T.  N.A.  Curr.    Last1  Last2  Last3  Last4  Last5");
172
  kern_sti();
173
 
174
  for (;;) {
175
    for (i=0,p=0; i<DISPLAY_MAX+5 && p<MAX_PROC; p++) {
176
      if (jet_getstat(p, &sum, &max, &nact, &curr) == -1) continue;
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      for (j=0; j<5; j++) last[j] = 0;
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      jet_gettable(p, &last[0], 5);
180
      kern_cli();
181
      printf_xy(0,STAT_Y+i+1,WHITE,"%-3d  %-6d  %-6d  %-4d  %-7d  %-5d  %-5d  %-5d  %-5d  %-5d",
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                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]);
183
      kern_sti();
184
      i++;
185
    }
186
  }
187
}
188
 
189
int main(int argc, char **argv)
190
{
191
  PID p1,p2,p3; //,p4,p5,p6;
192
  HARD_TASK_MODEL m;
193
  NRT_TASK_MODEL m_nrt;
194
  struct timespec t;
195
 
196
  clear();
197
 
198
  hard_task_default_model(m);
199
  hard_task_def_wcet(m,ASTER_WCET);
200
  hard_task_def_mit(m,10000);
201
  hard_task_def_group(m,1);
202
  hard_task_def_ctrl_jet(m);
203
 
204
  nrt_task_default_model(m_nrt);
205
  nrt_task_def_group(m_nrt,1);
206
  nrt_task_def_ctrl_jet(m_nrt);
207
 
208
  p1 = task_create("Aster",aster,&m,NULL);
209
  if (p1 == -1) {
1377 giacomo 210
    sys_shutdown_message("test7.c(main): Could not create task <aster> ...");
1099 pj 211
    sys_end();
212
  }
213
 
214
  hard_task_def_mit(m,500000);
215
  hard_task_def_wcet(m,CLOCK_WCET);
216
  p2 = task_create("Clock",clock,&m,NULL);
217
  if (p2 == -1) {
1377 giacomo 218
    sys_shutdown_message("test7.c(main): Could not create task <Clock> ...");
1099 pj 219
    sys_end();
220
  }
221
 
222
  p3 = task_create("JetControl",jetcontrol,&m_nrt,NULL);
223
  if (p2 == -1) {
1377 giacomo 224
    sys_shutdown_message("test7.c(main): Could not create task <JetControl> ...");
1099 pj 225
    sys_end();
226
  }
227
 
228
  group_activate(1);
229
 
230
  do {
231
    sys_gettime(&t);
232
  } while (t.tv_sec < END_TEST_TIME);
233
 
234
  sys_end();
235
 
236
  return 0;
237
}
238
 
239
 
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