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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: perf3.c,v 1.2 2003-01-07 17:10:18 pj Exp $

 File:        $File$

 Revision:    $Revision: 1.2 $

 Last update: $Date: 2003-01-07 17:10:18 $

 ------------

 Performance Test 3:

 this test is based on test D.

 the test creates some random events. each event measure the difference

 beetween his activation time and thecurrent time.

**/

/*

 * 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

 *

 */

#include "kernel/kern.h"

#include "modules/edf.h"

#include "modules/cbs.h"

int num_aster = 0;

#define ASTER_LIM       60

#define DISPLAY_MAX     15

#define ASTER_MAX       70

#define STAT_Y           9

#define PER_MAX          5

#define APER_MAX         8

#define PER_WCET      8200

#define APER_WCET    20400

#define CLOCK_WCET    1600

#define ASTER_WCET    1600

#define SOFT_MET      3300

#define APER_REP     22000

PID aper_table[APER_MAX];

int shutting_down = 0;

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--;

}

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);

        if (shutting_down) {

          kern_printf("±%d±",exec_shadow);

          return 0;

        }

        task_endcycle();

        puts_xy(i,y,WHITE," ");

        i++;

      }

    }

}

TASK soft_aster(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 = 1000 + rand()%9000;

        for (j=0; j<load1; j++) {

          s[0] = '*' + rand() % 100;

          puts_xy(i,y,rand()%15+1,s);

        }

        s[0] = 1;

        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 aster()

{

    PID p;

    HARD_TASK_MODEL m;

    SOFT_TASK_MODEL m_soft;

    int r;

    int x; // adaptive bandwidth...

    srand(7);

    hard_task_default_model(m);

    hard_task_def_wcet(m,PER_WCET);

    hard_task_def_ctrl_jet(m);

    for (x=0; x<PER_MAX; x++) {

      r = (rand() % 200);

      hard_task_def_mit(m, (64+r)*1000);

      p = task_create("per",asteroide,&m,NULL);

      if (p!=-1) task_activate(p);

    }

    soft_task_default_model(m_soft);

    soft_task_def_met(m_soft,SOFT_MET);

    soft_task_def_ctrl_jet(m_soft);

    x = 64;

    while (1) {

        if (num_aster < ASTER_MAX) {

            r = (rand() % 200);

            soft_task_def_period(m_soft, (x+r)*1000);

            p = task_create("aaa",soft_aster,&m_soft,NULL);

            if (p == -1)

            {

              if (x < 500 && errno != ENO_AVAIL_TASK)  x += 1;

              printf_xy(62,3,WHITE,"adapt=%3u err=%d",

                        iq_query_first(&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,"Uedf=%12u",EDF_usedbandwidth(0));

        printf_xy(62,4,WHITE,"Ucbs=%12u",CBS_usedbandwidth(4));

        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,"Uedf=%12u",EDF_usedbandwidth(0));

        printf_xy(62,4,WHITE,"Ucbs=%12u",CBS_usedbandwidth(4));

        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 ||

           ((proc_table[p].pclass & 0xFF00) == HARD_PCLASS)) continue;

       for (j=0; j<5; j++) last[j] = 0;

       jet_gettable(p, &last[0], 5);

       kern_cli();

       if (proc_table[p].task_level == 4)

         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, nact, (int)CBS_get_nact(4,p), (int)last[0], (int)last[1], (int)last[2], (int)last[3], (int)last[4]);

       else

         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, nact, (int)curr, (int)last[0], (int)last[1], (int)last[2], (int)last[3], (int)last[4]);

       kern_sti();

       i++;

    }

  }

}

void fine()

{

  sys_end();

}

void exiting(void *arg)

{

  kern_printf("EXITING");

  shutting_down = 1;

}

struct timespec last_random_time;

TIME max=0;

TIME sum=0;

int  n=0;

void random_event(void *arg)

{

  struct timespec t, sub;

  TIME delta;

  // get the current time

  kern_gettime(&t);

  // compute the delta

  SUBTIMESPEC(&t, &last_random_time, &sub);

  delta = TIMESPEC2USEC(&sub);

  // update the statistics

  if (max < delta) max = delta;

  sum += delta;

  n++;

/*  kern_printf("sub=%d.%d t=%d.%d last=%d.%d °\n",sub.tv_sec, sub.tv_nsec/1000,

              t.tv_sec, t.tv_nsec/1000,

              last_random_time.tv_sec, last_random_time.tv_nsec/1000);

*/  //return;

  // create a new event

  if (shutting_down)

    return;

  delta = (rand()%30000)+100;

  ADDUSEC2TIMESPEC(delta, &t);

  TIMESPEC_ASSIGN(&last_random_time, &t);

  kern_event_post(&last_random_time, random_event, NULL);

}

void perftest_printdata(void *arg)

{

  kern_printf("\n°°°    max=%ld sum=%ld n=%d    °°°",max,sum,n);

}

int main(int argc, char **argv)

{

  PID p2; //p1,p3; //,p4,p5,p6;

    HARD_TASK_MODEL m;

//    NRT_TASK_MODEL m_nrt;

    //    SOFT_TASK_MODEL m_aper;

    SOFT_TASK_MODEL m_soft;

    int i;

    struct timespec fineprg;

    sys_atrunlevel(exiting, NULL, RUNLEVEL_SHUTDOWN);

    sys_atrunlevel(perftest_printdata, NULL, RUNLEVEL_BEFORE_EXIT);

    kern_printf("\n\n");

    srand(1234);

    NULL_TIMESPEC(&last_random_time);

    i = rand()%30000+2000;

    ADDUSEC2TIMESPEC(i, &last_random_time);

//    last_random_time.tv_sec = 2;

//    last_random_time.tv_nsec = 0;

    kern_cli();

    kern_event_post(&last_random_time, random_event, NULL);

    kern_sti();

    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);

    soft_task_default_model(m_soft);

    soft_task_def_met(m_soft,1000);

    soft_task_def_period(m_soft,100000);

    soft_task_def_group(m_soft,1);

    soft_task_def_ctrl_jet(m_soft);

    soft_task_def_aperiodic(m_soft);

/*

    p1 = task_create("Aster",aster,&m,NULL);

    if (p1 == -1) {

        perror("test7.c(main): Could not create task <aster> ...");

        sys_end();

        l1_exit(-1);

    }

*/

    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();

        l1_exit(-1);

    }

/*

//    p3 = task_create("JetControl",jetcontrol,&m_nrt,NULL);

    p3 = task_create("JetControl",jetcontrol,&m_soft,NULL);

    if (p3 == -1) {

        perror("test7.c(main): Could not create task <JetControl> ...");

        sys_end();

        l1_exit(-1);

    }

    soft_task_default_model(m_aper);

    soft_task_def_wcet(m_aper,APER_WCET);

    soft_task_def_ctrl_jet(m_aper);

    soft_task_def_system(m_aper);

    soft_task_def_aperiodic(m_aper);

    for (i=0; 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();

        l1_exit(-1);

      }

    }

*/

    task_nopreempt();

    fineprg.tv_sec = 6;

    fineprg.tv_nsec = 0;

    kern_event_post(&fineprg,fine,NULL);

    group_activate(1);

    return 0;

}