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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

 */

/**

 ------------

 CVS :        $Id: jetctrl.c,v 1.5 2005-01-08 14:35:17 pj Exp $

 File:        $File$

 Revision:    $Revision: 1.5 $

 Last update: $Date: 2005-01-08 14:35:17 $

 ------------

**/

/*

 * 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

 *

 */

// JetControl

#include "demo.h"

#include "kernel/func.h"

TASK jetdummy_task(void *arg)

{

  TIME   now_dummy, last_dummy, diff_dummy, slice;

  struct timespec now, last, diff;

  int x = 0;

  int height;

  NULL_TIMESPEC(&last);

  last_dummy = 0;

  for (;;) {

    task_nopreempt();

    jet_getstat(DUMMY_PID, NULL, NULL, NULL, &now_dummy);

    sys_gettime(&now);

    task_preempt();

    SUBTIMESPEC(&now, &last, &diff);

    slice = diff.tv_sec * 1000000 + diff.tv_nsec/1000;

    diff_dummy = now_dummy - last_dummy;

    height = (int)(JET_DUMMY_HEIGHT*((float)diff_dummy)/((float)slice));

    TIMESPEC_ASSIGN(&last, &now);

    last_dummy = now_dummy;

    grx_line(JET_DUMMY_X+x,JET_DUMMY_Y,

             JET_DUMMY_X+x,JET_DUMMY_Y+height          ,black);

    grx_line(JET_DUMMY_X+x,JET_DUMMY_Y+height,

             JET_DUMMY_X+x,JET_DUMMY_Y+JET_DUMMY_HEIGHT,white);

    grx_line(JET_DUMMY_X+(x+1)%JET_DUMMY_WIDTH,JET_DUMMY_Y,

             JET_DUMMY_X+(x+1)%JET_DUMMY_WIDTH,JET_DUMMY_Y+JET_DUMMY_HEIGHT,255);

    x = (x+1)%JET_DUMMY_WIDTH;

    task_endcycle();

  }

}

TASK jetctrl_task(void *arg)

{

  char st[50];

  TIME sum, max;

  int n;

  PID i;

  int printed = 0;

  for (;;) {

    for (i=2, printed=0; i<MAX_PROC && printed<JET_NTASK; i++) {

      if (jet_getstat(i, &sum, &max, &n, NULL) != -1) {

        if (!n) n=1;

        sprintf(st, "%6d %6d %10s", (int)sum/n, (int)max, proc_table[i].name);

        grx_text(st, 384, JET_Y_NAME+16+printed*8, gray, black);

        printed++;

      }

    }

    while (printed<JET_NTASK) {

      grx_text("                        ",

               384, JET_Y_NAME+16+printed*8, gray, black);

      printed++;

    }

    task_endcycle();

  }

}

TASK jetslide_task(void *arg)

{

  TIME sum, curr, max;

  TIME total[JET_NTASK];

  int slides[JET_NTASK];

  PID i;

  int printed = 0;

  for (;;) {

    // Fill the total array in a nonpreemptive section

    task_nopreempt();

    for (i=2, printed=0; i<MAX_PROC && printed<JET_NTASK; i++) {

      if (jet_getstat(i, &sum, NULL, NULL, &curr) != -1) {

        total[printed] = sum+curr;

        printed++;

      }

    }

    task_preempt();

    while (printed < JET_NTASK)

      total[printed++] = 0;

    // Compute the Max elapsed time

    max = 0;

    for (i=0; i<JET_NTASK; i++)

      if (total[i] > max) max = total[i];

    if (!max) max = 1;

    // Compute the slides width

    for (i=0; i<JET_NTASK; i++)

      slides[i] = (int)( (((float)total[i])/max) * JET_SLIDE_WIDTH);

    // print the data

    for (i=0; i<JET_NTASK; i++) {

      grx_box(JET_SLIDE_X,                 JET_Y_NAME+16+i*8,

              JET_SLIDE_X+slides[i],       JET_Y_NAME+23+i*8, gray);

      grx_box(JET_SLIDE_X+slides[i],       JET_Y_NAME+16+i*8,

              JET_SLIDE_X+JET_SLIDE_WIDTH, JET_Y_NAME+23+i*8, black);

    }

    while (i<JET_NTASK) {

      grx_box(JET_SLIDE_X,                 JET_Y_NAME+16+i*8,

              JET_SLIDE_X+JET_SLIDE_WIDTH, JET_Y_NAME+20+i*8, black);

      i++;

    }

    task_endcycle();

  }

}

void scenario_jetcontrol(void)

{

  grx_text("System load"         , 384, 45, rgb16(0,0,255), black);

  grx_line(384,55,639,55,red);

  grx_text("  Mean    Max Name  Slide", 384, JET_Y_NAME, gray, black);

  grx_line(384,JET_Y_NAME+10,639,JET_Y_NAME+10,gray);

  grx_rect(JET_DUMMY_X-1,               JET_DUMMY_Y-1,

           JET_DUMMY_X+JET_DUMMY_WIDTH, JET_DUMMY_Y+JET_DUMMY_HEIGHT+1, gray);

  grx_text("100%", JET_DUMMY_X-40, JET_DUMMY_Y, gray, black);

  grx_text("  0%", JET_DUMMY_X-40, JET_DUMMY_Y+JET_DUMMY_HEIGHT-8, gray, black);

  grx_line(JET_DUMMY_X-1, JET_DUMMY_Y, JET_DUMMY_X-5, JET_DUMMY_Y, gray);

  grx_line(JET_DUMMY_X-1, JET_DUMMY_Y+JET_DUMMY_HEIGHT, JET_DUMMY_X-5, JET_DUMMY_Y+JET_DUMMY_HEIGHT, gray);

}

void init_jetcontrol(void)

{

    SOFT_TASK_MODEL m3, m4, m5;

    PID p3, p4, p5;

    soft_task_default_model(m3);

    soft_task_def_level(m3,2);

    soft_task_def_period(m3, PERIOD_JETCTRL);

    soft_task_def_met(m3, WCET_JETCTRL);

    soft_task_def_ctrl_jet(m3);

    soft_task_def_group(m3, 1);

    p3 = task_create("jctrl", jetctrl_task, &m3, NULL);

    if (p3 == -1) {

        sys_shutdown_message("Could not create task <jetctrl> errno=%d",

                             errno);

        exit(1);

    }

    soft_task_default_model(m4);

    soft_task_def_level(m4,2);

    soft_task_def_period(m4, PERIOD_JETDUMMY);

    soft_task_def_met(m4, WCET_JETDUMMY);

    soft_task_def_group(m4, 1);

    soft_task_def_usemath(m4);

    soft_task_def_ctrl_jet(m4);

    p4 = task_create("jdmy", jetdummy_task, &m4, NULL);

    if (p4 == -1) {

        sys_shutdown_message("Could not create task <jetdummy> errno=%d",

                             errno);

        exit(1);

    }

    soft_task_default_model(m5);

    soft_task_def_level(m5,2);

    soft_task_def_period(m5, PERIOD_JETSLIDE);

    soft_task_def_met(m5, WCET_JETSLIDE);

    soft_task_def_group(m5, 1);

    soft_task_def_usemath(m5);

    soft_task_def_ctrl_jet(m5);

    p5 = task_create("jsli", jetslide_task, &m5, NULL);

    if (p5 == -1) {

        sys_shutdown_message("Could not create task <jetslide> errno=%d",

                             errno);

        exit(1);

    }

}