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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: perf2.c,v 1.1.1.1 2004-05-24 18:03:39 giacomo Exp $

 File:        $File$
 Revision:    $Revision: 1.1.1.1 $
 Last update: $Date: 2004-05-24 18:03:39 $
 ------------

 Performance Test 2:

 This test tries to measure the time spent into the event handlers.
 It is based on test D.

 WARNING: the symbol __PERF_TEST2__ must be defined into the file
 kernel/config.h


**/

/*
 * 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;
}

TIME perftime_prol[10001];
TIME perftime_epil[10001];
int  perftime_count = 0;

void perftest_stat(void *arg)
{
  int i;
  TIME d, sum=0, max=0;

  for (i=0; i<9000; i++) {
    d = perftime_epil[i]-perftime_prol[i];
    sum += d;
    if (max < d) max = d;
    kern_printf("Û%ld %ldÛ",perftime_epil[i],perftime_prol[i]);
  }
  kern_printf("\n°°° perftime_count=%u sum=%lu max=%lu   °°°\n",perftime_count, sum, max);
}

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;
    SOFT_TASK_MODEL m_soft;
    int i;
    struct timespec fineprg;

    kern_cli();

    kern_sti();

    sys_atrunlevel(exiting, NULL, RUNLEVEL_SHUTDOWN);
    sys_atrunlevel(perftest_stat, NULL, RUNLEVEL_BEFORE_EXIT);

    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 = 60;
    fineprg.tv_nsec = 0;
    kern_event_post(&fineprg,fine,NULL);
    group_activate(1);
    return 0;
}