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//////////////////////////////////////////////////////////////////

// Pong

// Written for CS 324, UIUC

// Spencer Hoke

// James Kim

// Tao Luo

//

// Last Modified: April 29, 2004

#include "pong.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;

        mutex_lock(&draw_mutex);

    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,blue);

        mutex_unlock(&draw_mutex);

    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, " %4d %4d  %s", (int)sum/n, (int)max, proc_table[i].name);

        mutex_lock(&draw_mutex);

        grx_text(st, JET_DUMMY_X-45, JET_Y_NAME+16+printed*8, gray, black);

        mutex_unlock(&draw_mutex);

        printed++;

      }

    }

    while (printed < JET_NTASK) {

      mutex_lock(&draw_mutex);

      grx_text("                    ", JET_DUMMY_X-45, JET_Y_NAME+16+printed*8, gray, black);

      mutex_unlock(&draw_mutex);

      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

        mutex_lock(&draw_mutex);

    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++;

    }

        mutex_unlock(&draw_mutex);

    task_endcycle();

  }

}

///////////////////////////////////////

void scenario_jetcontrol(void)

{

  grx_line(JET_DUMMY_X-40,JET_DUMMY_Y-15,JET_DUMMY_X+200,JET_DUMMY_Y-15, redorange);

  grx_text("Mean  Max  Name     Slide", JET_DUMMY_X-40, JET_Y_NAME, gray, black);

  grx_line(JET_DUMMY_X-40,JET_Y_NAME+10,JET_DUMMY_X+200,JET_Y_NAME+10,lime);

  grx_rect(JET_DUMMY_X-1,               JET_DUMMY_Y-1,

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

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

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

}

///////////////////////////////////////

void init_jetcontrol(void)

{

    SOFT_TASK_MODEL m3, m4, m5;

    PID p3, p4, p5;

    soft_task_default_model(m3);

    soft_task_def_level(m3,1);

    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, JET_GROUP);

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

    if (p3 == -1) {

        grx_close();

        sys_shutdown_message("Could not create task <jetcontrol> errno=%d", errno);

        sys_end();

    }

    soft_task_default_model(m4);

    soft_task_def_level(m4,1);

    soft_task_def_period(m4, PERIOD_JETDUMMY);

    soft_task_def_met(m4, WCET_JETDUMMY);

    soft_task_def_group(m4, JET_GROUP);

    soft_task_def_usemath(m4);

    soft_task_def_ctrl_jet(m4);

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

    if (p4 == -1) {

        grx_close();

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

        sys_end();

    }

    soft_task_default_model(m5);

    soft_task_def_level(m5,1);

    soft_task_def_period(m5, PERIOD_JETSLIDE);

    soft_task_def_met(m5, WCET_JETSLIDE);

    soft_task_def_group(m5, JET_GROUP);

    soft_task_def_usemath(m5);

    soft_task_def_ctrl_jet(m5);

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

    if (p5 == -1) {

        grx_close();

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

        sys_end();

    }

}