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#include <kernel/kern.h>

#include "parser.h"

#include "dosread.h"

#include "fsf_contract.h"

#include "fsf_server.h"

/* Memory pointers on loaded file */

extern void *start_file;

extern void *end_file;

/* Calibration Loops */

#define CALIBRATION_DELTA 100000

/* Mutex number */

#define MAX_MUTEX 10

/* Activate task output */

#define TASK_OUTPUT

struct timespec zero_time;

int cal_cycles = 0;

mutex_t mux_table[MAX_MUTEX];

/* Not Real-Time Task */

TASK nrt_test_task(void *arg)

{

  long long i,exec_cycles = 0;

  int exec_1,exec_2,exec_3;

  int act_1,act_2,act_3,next_act;

  int crit_1 = 0,crit_2 = 0,crit_3 = 0,crit_4 = 0;

  int crit_start,crit_len;

  long long crit_start_cycles = 0, crit_len_cycles = 0;

  struct timespec next_time;

  struct loader_task *l = (struct loader_task *)(arg);

  char tmp[20];

  act_1 = TIMESPEC2USEC(&l->act_par_2);

  act_2 = TIMESPEC2USEC(&l->act_par_3);

  act_3 = TIMESPEC2USEC(&l->act_par_4);

  if (l->act_type == PAR_ACT_PERIODIC) {

    kern_gettime(&next_time);

    ADDUSEC2TIMESPEC(act_1,&next_time);

    kern_event_post(&next_time,(void *)((void *)task_activate),(void *)exec_shadow);

  }

  if (l->act_type == PAR_ACT_MEAN) {

    next_act = act_1 + rand() % act_2 - act_2/2;

    kern_gettime(&next_time);

    ADDUSEC2TIMESPEC(next_act,&next_time);

    kern_event_post(&next_time,(void *)((void *)task_activate),(void *)exec_shadow);

  }

  if (l->act_type == PAR_ACT_GAUSS) {

  }

  if (l->act_type == PAR_ACT_GAUSS_MAX) {

  }

  exec_1 = TIMESPEC2USEC(&l->exec_par_1);

  exec_2 = TIMESPEC2USEC(&l->exec_par_2);

  exec_3 = TIMESPEC2USEC(&l->exec_par_3);

  if (l->crit_type == PAR_CRIT) {

    crit_1 = TIMESPEC2USEC(&l->crit_par_1);

    crit_2 = TIMESPEC2USEC(&l->crit_par_2);

    crit_3 = TIMESPEC2USEC(&l->crit_par_3);

    crit_4 = TIMESPEC2USEC(&l->crit_par_4);

  }

  #ifdef TASK_OUTPUT

    printf_xy((exec_shadow % 5) * 9 + 34, exec_shadow / 5 + 5, GREEN, "R[000000]");

  #endif

  if (l->exec_type == PAR_EXEC_CONST)

    exec_cycles = (long long)(exec_1) * CALIBRATION_DELTA / cal_cycles;

  if (l->exec_type == PAR_EXEC_MEAN)

    exec_cycles = (long long)(exec_1 + rand() % exec_2 - exec_2/2)

                    * CALIBRATION_DELTA / cal_cycles;

  if (l->exec_type == PAR_EXEC_GAUSS)

    exec_cycles = 0;

  if (l->exec_type == PAR_EXEC_GAUSS_MAX)

    exec_cycles = 0;

  if (l->crit_type == PAR_CRIT) {

    crit_start = crit_1 + rand() % crit_2 - crit_2/2;

    crit_len = crit_3 + rand() % crit_4 - crit_4/2;

    crit_start_cycles = (long long)(crit_start) * CALIBRATION_DELTA / cal_cycles;

    crit_len_cycles = (long long)(crit_len) * CALIBRATION_DELTA / cal_cycles;

    exec_cycles -= crit_start_cycles + crit_len_cycles;

    if (exec_cycles < 0) {

      cprintf("Error: exec_cycles < 0\n");

      sys_end();

    }

  }

  if (l->crit_type == PAR_NO_CRIT)

    for (i=0;i<exec_cycles;i++) kern_gettime(NULL);

  else {

    for (i=0;i<crit_start_cycles;i++) kern_gettime(NULL);

    #ifdef TASK_OUTPUT

      sprintf(tmp,"B[%02d][%02d]",exec_shadow,l->resource);

      printf_xy((exec_shadow % 5) * 9 + 34, exec_shadow / 5 + 5, RED,tmp);

    #endif

    mutex_lock(&mux_table[l->resource]);

    for (i=0;i<crit_len_cycles;i++) kern_gettime(NULL);

    mutex_unlock(&mux_table[l->resource]);

    #ifdef TASK_OUTPUT

      printf_xy((exec_shadow % 5) * 9 + 34, exec_shadow / 5 + 5, GREEN,"R[000000]");

    #endif

    for (i=0;i<exec_cycles;i++) kern_gettime(NULL);

  }

  #ifdef TASK_OUTPUT

    printf_xy((exec_shadow % 5) * 9 + 34, exec_shadow / 5 + 5, BLUE, "E[000000]");

  #endif

  return NULL;

}

/* Soft and hard Task */

TASK test_task(void *arg)

{

  long long i,exec_cycles = 0;

  int exec_1,exec_2,exec_3;

  int act_1,act_2,act_3,next_act;

  int crit_1 = 0,crit_2 = 0,crit_3 = 0,crit_4 = 0;

  int crit_start,crit_len;

  long long crit_start_cycles = 0, crit_len_cycles = 0;

  struct timespec next_time;

  int act = 0;

  struct loader_task *l = (struct loader_task *)(arg);

  char tmp[20];

  act_1 = TIMESPEC2USEC(&l->act_par_2);

  act_2 = TIMESPEC2USEC(&l->act_par_3);

  act_3 = TIMESPEC2USEC(&l->act_par_4);

  exec_1 = TIMESPEC2USEC(&l->exec_par_1);

  exec_2 = TIMESPEC2USEC(&l->exec_par_2);

  exec_3 = TIMESPEC2USEC(&l->exec_par_3);

  if (l->crit_type == PAR_CRIT) {

    crit_1 = TIMESPEC2USEC(&l->crit_par_1);

    crit_2 = TIMESPEC2USEC(&l->crit_par_2);

    crit_3 = TIMESPEC2USEC(&l->crit_par_3);

    crit_4 = TIMESPEC2USEC(&l->crit_par_4);

  }

  while(1) {

    task_testcancel();

    act++;

    #ifdef TASK_OUTPUT

      sprintf(tmp,"X[%06d]",act);

      printf_xy((exec_shadow % 5) * 9 + 34, exec_shadow / 5 + 5, GREEN, tmp);

    #endif

    if (l->act_type == PAR_ACT_MEAN) {

      next_act = act_1 + rand() % act_2 - act_2/2;

      kern_gettime(&next_time);

      ADDUSEC2TIMESPEC(next_act,&next_time);

      kern_event_post(&next_time,(void *)((void *)task_activate),(void *)exec_shadow);

    }

    if (l->act_type == PAR_ACT_GAUSS) {

    }

    if (l->act_type == PAR_ACT_GAUSS_MAX) {

    }

    if (l->exec_type == PAR_EXEC_CONST)

      exec_cycles = (long long)(exec_1) * CALIBRATION_DELTA / cal_cycles;

    if (l->exec_type == PAR_EXEC_MEAN)

      exec_cycles = (long long)(exec_1 + rand() % exec_2 - exec_2/2)

                     * CALIBRATION_DELTA / cal_cycles;

    if (l->exec_type == PAR_EXEC_GAUSS)

      exec_cycles = 0;

    if (l->exec_type == PAR_EXEC_GAUSS_MAX)

      exec_cycles = 0;

    if (l->crit_type == PAR_CRIT) {

      crit_start = crit_1 + rand() % crit_2 - crit_2/2;

      crit_len = crit_3 + rand() % crit_4 - crit_4/2;

      crit_start_cycles = (long long)(crit_start) * CALIBRATION_DELTA / cal_cycles;

      crit_len_cycles = (long long)(crit_len) * CALIBRATION_DELTA / cal_cycles;

      exec_cycles -= crit_start_cycles + crit_len_cycles;

      if (exec_cycles < 0) {

        cprintf("Error: exec_cycles < 0\n");

        sys_end();

      }

    }  

    if (l->crit_type == PAR_NO_CRIT)

      for (i=0;i<exec_cycles;i++) kern_gettime(NULL);

    else {

      for (i=0;i<crit_start_cycles;i++) kern_gettime(NULL);

      #ifdef TASK_OUTPUT

        sprintf(tmp,"B[%02d][%02d]",exec_shadow,l->resource);

        printf_xy((exec_shadow % 5) * 9 + 34, exec_shadow / 5 + 5, RED, tmp);

      #endif

      mutex_lock(&mux_table[l->resource]);

      for (i=0;i<crit_len_cycles;i++) kern_gettime(NULL);

      mutex_unlock(&mux_table[l->resource]);

      #ifdef TASK_OUTPUT

        sprintf(tmp,"X[%06d]",act);

        printf_xy((exec_shadow % 5) * 9 + 34, exec_shadow / 5 + 5, GREEN, tmp);

      #endif

      for (i=0;i<exec_cycles;i++) kern_gettime(NULL);

    }

    task_endcycle();

  }

  return NULL;

}

/* Background Task */

TASK back_task(void *arg)

{

  long long i,exec_cycles = 0;

  int exec_1,exec_2,exec_3;

  int act_1,act_2,act_3,next_act;

  int crit_1 = 0,crit_2 = 0,crit_3 = 0,crit_4 = 0;

  int crit_start,crit_len;

  long long crit_start_cycles = 0, crit_len_cycles = 0;

  struct timespec next_time;

  int act = 0;

  struct loader_task *l = (struct loader_task *)(arg);

  char tmp[20];

  act_1 = TIMESPEC2USEC(&l->act_par_2);

  act_2 = TIMESPEC2USEC(&l->act_par_3);

  act_3 = TIMESPEC2USEC(&l->act_par_4);

  exec_1 = TIMESPEC2USEC(&l->exec_par_1);

  exec_2 = TIMESPEC2USEC(&l->exec_par_2);

  exec_3 = TIMESPEC2USEC(&l->exec_par_3);

  if (l->crit_type == PAR_CRIT) {

    crit_1 = TIMESPEC2USEC(&l->crit_par_1);

    crit_2 = TIMESPEC2USEC(&l->crit_par_2);

    crit_3 = TIMESPEC2USEC(&l->crit_par_3);

    crit_4 = TIMESPEC2USEC(&l->crit_par_4);

  }

  while(1) {

    task_testcancel();

    act++;

    #ifdef TASK_OUTPUT

      sprintf(tmp,"X[%06d]",act);

      printf_xy((exec_shadow % 5) * 9 + 34, exec_shadow / 5 + 5, GREEN, tmp);

    #endif

    if (l->act_type == PAR_ACT_MEAN) {

      next_act = act_1 + rand() % act_2 - act_2/2;

      kern_gettime(&next_time);

      ADDUSEC2TIMESPEC(next_act,&next_time);

      kern_event_post(&next_time,(void *)((void *)task_activate),(void *)exec_shadow);

    }

    if (l->act_type == PAR_ACT_GAUSS) {

    }

    if (l->act_type == PAR_ACT_GAUSS_MAX) {

    }

    if (l->exec_type == PAR_EXEC_CONST)

      exec_cycles = (long long)(exec_1) * CALIBRATION_DELTA / cal_cycles;

    if (l->exec_type == PAR_EXEC_MEAN)

      exec_cycles = (long long)(exec_1 + rand() % exec_2 - exec_2/2)

                     * CALIBRATION_DELTA / cal_cycles;

    if (l->exec_type == PAR_EXEC_GAUSS)

      exec_cycles = 0;

    if (l->exec_type == PAR_EXEC_GAUSS_MAX)

      exec_cycles = 0;

    if (l->crit_type == PAR_CRIT) {

      crit_start = crit_1 + rand() % crit_2 - crit_2/2;

      crit_len = crit_3 + rand() % crit_4 - crit_4/2;

      crit_start_cycles = (long long)(crit_start) * CALIBRATION_DELTA / cal_cycles;

      crit_len_cycles = (long long)(crit_len) * CALIBRATION_DELTA / cal_cycles;

      exec_cycles -= crit_start_cycles + crit_len_cycles;

      if (exec_cycles < 0) {

        cprintf("Error: exec_cycles < 0\n");

        sys_end();

      }

    }  

    if (l->crit_type == PAR_NO_CRIT)

      for (i=0;i<exec_cycles;i++) kern_gettime(NULL);

    else {

      for (i=0;i<crit_start_cycles;i++) kern_gettime(NULL);

      #ifdef TASK_OUTPUT

        sprintf(tmp,"B[%02d][%02d]",exec_shadow,l->resource);

        printf_xy((exec_shadow % 5) * 9 + 34, exec_shadow / 5 + 5, RED, tmp);

      #endif

      mutex_lock(&mux_table[l->resource]);

      for (i=0;i<crit_len_cycles;i++) kern_gettime(NULL);

      mutex_unlock(&mux_table[l->resource]);

      #ifdef TASK_OUTPUT

        sprintf(tmp,"X[%06d]",act);

        printf_xy((exec_shadow % 5) * 9 + 34, exec_shadow / 5 + 5, GREEN, tmp);

      #endif

      for (i=0;i<exec_cycles;i++) kern_gettime(NULL);

    }

  }

  return NULL;

}

/* Delay Calibration */

int calibrate_cycle()

{

  long long i;

  struct timespec start,end,diff;

  kern_cli();

  kern_gettime(&start);

  for (i=0;i<CALIBRATION_DELTA;i++) kern_gettime(NULL);

  kern_gettime(&end);

  kern_sti();

  SUBTIMESPEC(&end,&start,&diff);

  cal_cycles = TIMESPEC2USEC(&diff);

  cprintf("Calibration usec/[%d cycles] = %d\n",CALIBRATION_DELTA,cal_cycles);

  return 0;

}

/* Mutex create */

void loader_mutex_create(struct loader_task *start_loader_task)

{

  struct loader_task *current = start_loader_task;

  int i,res = 0;

  PI_mutexattr_t a;

  int init_array[MAX_MUTEX];

  PI_mutexattr_default(a);

  for (i = 0;i < MAX_MUTEX;i++) init_array[i] = 0;

  while (current != NULL) {

    if (current->crit_type == PAR_CRIT) {

      if (init_array[current->resource] == 0) {

        mutex_init(&mux_table[current->resource],&a);

        init_array[current->resource] = 1;

        res++;

      }

    }

    current = current->next;

  }

  cprintf("Created %d mutex\n",res);

}

/* Task create */

void loader_task_create(struct loader_task *start_loader_task)

{

  struct loader_task *current = start_loader_task;

  char tmp[30];

  int i, total_task;

  int total_group = 0;

  PID p;

  total_task = 0;

  while (current != NULL) {

    total_group++;

    current->group = total_group;

    current->bandwidth = 0;

    for (i=0; i < current->number; i++) {

      if (current->task_type == PAR_TASK_NRT) {

        NRT_TASK_MODEL nrt;

        nrt_task_default_model(nrt);

        nrt_task_def_save_arrivals(nrt);

        nrt_task_def_arg(nrt,(void *)(current));

        nrt_task_def_ctrl_jet(nrt);

        nrt_task_def_level(nrt,current->task_level);

        nrt_task_def_group(nrt,total_group);

        sprintf(tmp,"NRT %d:%d",current->group,i);

        p = task_create(tmp,nrt_test_task,&nrt,NULL);

        if (p == NIL) {

          cprintf("Error nrt task creating\n");

          sys_end();

        }

        total_task++;

      }

      if (current->task_type == PAR_TASK_BACK) {

        NRT_TASK_MODEL nrt;

        nrt_task_default_model(nrt);

        nrt_task_def_save_arrivals(nrt);

        nrt_task_def_arg(nrt,(void *)(current));

        nrt_task_def_ctrl_jet(nrt);

        nrt_task_def_level(nrt,current->task_level);

        nrt_task_def_group(nrt,total_group);

        sprintf(tmp,"BACK %d:%d",current->group,i);

        p = task_create(tmp,back_task,&nrt,NULL);

        if (p == NIL) {

          cprintf("Error back task creating\n");

          sys_end();

        }

        total_task++;

      }

      if (current->task_type == PAR_TASK_HARD) {

        HARD_TASK_MODEL ht;

        hard_task_default_model(ht);

        hard_task_def_arg(ht,(void *)(current));

        hard_task_def_wcet(ht,TIMESPEC2USEC(&current->wcet));

        hard_task_def_ctrl_jet(ht);

        hard_task_def_level(ht,current->task_level);

        hard_task_def_group(ht,total_group);

        if (current->act_type != PAR_ACT_PERIODIC) {

          hard_task_def_mit(ht,TIMESPEC2USEC(&current->deadline));

          current->bandwidth += MAX_BANDWIDTH / TIMESPEC2USEC(&current->deadline)

                                 * TIMESPEC2USEC(&current->wcet);

          hard_task_def_aperiodic(ht);

        } else {

          hard_task_def_mit(ht,TIMESPEC2USEC(&current->act_par_2));

          current->bandwidth += MAX_BANDWIDTH / TIMESPEC2USEC(&current->act_par_2)

                                 * TIMESPEC2USEC(&current->wcet);

        }

        sprintf(tmp,"HARD %d:%d",current->group,i);

        p = task_create(tmp,test_task,&ht,NULL);

        if (p == NIL) {

          cprintf("Error hard task creating\n");

          sys_end();

        }

        total_task++;

      }

      if (current->task_type == PAR_TASK_SOFT) {

        SOFT_TASK_MODEL st;

        soft_task_default_model(st);

        soft_task_def_save_arrivals(st);

        soft_task_def_arg(st,(void *)(current));

        soft_task_def_met(st,TIMESPEC2USEC(&current->wcet));

        soft_task_def_ctrl_jet(st);

        soft_task_def_level(st,current->task_level);

        soft_task_def_group(st,total_group);

        if (current->act_type == PAR_ACT_PERIODIC) {

          soft_task_def_period(st,TIMESPEC2USEC(&current->act_par_2));

          current->bandwidth += MAX_BANDWIDTH / TIMESPEC2USEC(&current->act_par_2)

                                 * TIMESPEC2USEC(&current->wcet);

        } else if (current->act_type != PAR_ACT_SINGLE) {

          soft_task_def_period(st,TIMESPEC2USEC(&current->act_par_2));

          current->bandwidth += MAX_BANDWIDTH / TIMESPEC2USEC(&current->act_par_2)

                                 * TIMESPEC2USEC(&current->wcet);

          soft_task_def_aperiodic(st);

        } else {

          soft_task_def_period(st,TIMESPEC2USEC(&current->wcet)*1000);

          current->bandwidth += MAX_BANDWIDTH / 1000;

          soft_task_def_aperiodic(st);

        }

        sprintf(tmp,"SOFT %d:%d",current->group,i);

        p = task_create(tmp,test_task,&st,NULL);

        if (p == NIL) {

          cprintf("Error soft task creating\n");

          sys_end();

        }

        total_task++;

      }

      if (current->task_type == PAR_TASK_FSF) {

        if (current->local_scheduler == PAR_POSIX) {

          NRT_TASK_MODEL nrt;

          pthread_t j;

          int err;

          nrt_task_default_model(nrt);

          nrt_task_def_save_arrivals(nrt);

          nrt_task_def_ctrl_jet(nrt);

          err = fsf_create_thread(current->server,&j,NULL,back_task,(void *)current,&nrt);

          if (err) {

            cprintf("Error fsf task creating\n");

            sys_end();

          }

        }

        if (current->local_scheduler == PAR_EDF) {

          HARD_TASK_MODEL ht;

          pthread_t j;

          int err;

          hard_task_default_model(ht);

          hard_task_def_ctrl_jet(ht);          

          hard_task_def_mit(ht,TIMESPEC2USEC(&current->deadline));

          hard_task_def_wcet(ht,TIMESPEC2USEC(&current->wcet));

          err = fsf_create_thread(current->server,&j,NULL,test_task,(void *)current,&ht);

          if (err) {

            cprintf("Error fsf task creating\n");

            sys_end();

          }

        }

        if (current->local_scheduler == PAR_RM) {

          HARD_TASK_MODEL ht;

          pthread_t j;

          int err;

          hard_task_default_model(ht);

          hard_task_def_mit(ht,TIMESPEC2USEC(&current->deadline));

          hard_task_def_wcet(ht,TIMESPEC2USEC(&current->wcet));

          hard_task_def_ctrl_jet(ht);

          err = fsf_create_thread(current->server,&j,NULL,test_task,(void *)current,&ht);

          if (err) {

            cprintf("Error fsf task creating\n");

            sys_end();

          }

        }

        total_task++;

      }

    }

    cprintf("Task group %d created. Worst case BW = %d.%d \n",

             current->group,(int)( (long long)current->bandwidth * 100 / MAX_BANDWIDTH),

             (int)( (long long)current->bandwidth*  100000 / MAX_BANDWIDTH % 1000));

    current = current->next;

  }

  cprintf("Created %d tasks\n",total_task);

}

/* Set the first extivation events */

void loader_first_execution(struct loader_task *start_loader_task)

{

  struct loader_task *current = start_loader_task;

  struct timespec start_time;  

  while (current != NULL) {

    if (current->task_type != PAR_TASK_FSF) {

      ADDTIMESPEC(&zero_time,&current->act_par_1,&start_time);

      kern_event_post(&start_time, (void *)((void *)group_activate), (void *)(current->group));

    }

    current = current->next;

  }  

}

void fsfinit(void);

int main()

{

  struct loader_task *start_loader_task = NULL;

  struct timespec total;

  struct timespec end_time;

  line_reader(start_file, end_file, &total, &start_loader_task);

  srand(kern_gettime(NULL));

  calibrate_cycle();

  fsfinit();

  loader_mutex_create(start_loader_task);

  loader_task_create(start_loader_task);

  kern_gettime(&zero_time);

  loader_first_execution(start_loader_task);

  ADDTIMESPEC(&zero_time,&total,&end_time);

  kern_event_post(&end_time,(void *)((void *)(sys_end)),NULL);

  return 0;

}