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#include "func.h"

#include "calibrate.h"

#include <tracer.h>

extern int cal_cycles;

extern struct timespec zero_time;

extern struct loader_task loader_task_list[];

extern struct loader_contract loader_contract_list[];

extern int total_loader_task;

extern int total_loader_contract;

/* Runtime Calibration */

int calibrate_cycle()

{

  long long i;

  struct timespec start,end,diff;

  if (cal_cycles != 0) return 0;

  kern_cli();

  kern_gettime(&start);

  for (i=0;i<CALIBRATION_DELTA;i++)

    __asm__ __volatile__ ("xorl %%eax,%%eax\n\t"

                          "cpuid\n\t"

                          :::"eax","ebx","ecx","edx");

  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;

}

int get_server_from_contract(int contract)

{

  int i;

  for(i=0;i<total_loader_contract;i++)

    if (loader_contract_list[i].number == contract)

      return loader_contract_list[i].server;

  return -1;

}

void *get_task_model(struct loader_task *current) {

  if (current->local_scheduler == PAR_POSIX) {

    static NRT_TASK_MODEL nrt;

    nrt_task_default_model(nrt);

    nrt_task_def_save_arrivals(nrt);

    nrt_task_def_ctrl_jet(nrt);

    nrt_task_def_group(nrt,current->group);

    nrt_task_def_usemath(nrt);

    return &nrt;

  }  

  if (current->local_scheduler == PAR_EDF) {

    static HARD_TASK_MODEL ht;

    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));

    hard_task_def_group(ht,current->group);

    hard_task_def_aperiodic(ht);

    hard_task_def_usemath(ht);

    return &ht;

  }  

  if (current->local_scheduler == PAR_RM) {

    static HARD_TASK_MODEL ht;

    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);

    hard_task_def_group(ht,current->group);

    hard_task_def_usemath(ht);

    return &ht;

  }  

  return NULL;

}

TASK finish_task() {

  extern unsigned int TracerEventsPresent;

  unsigned int k;                

  SYS_FLAGS f;

  tracer_init_udp(1,"192.168.82.46","192.168.82.20");

  tracer_create_udp_task(NULL,80);

  f = kern_fsave();

  k = TracerEventsPresent;

  kern_frestore(f);

  while(k > 0) {

    f = kern_fsave();

    k = TracerEventsPresent;

    kern_frestore(f);

  }

  tracer_flush_sent_events();

  sys_end();

  return NULL;

}

void end_simulation() {

  int i;

  struct loader_task *l = loader_task_list;

  NRT_TASK_MODEL nrt;

  TRACER_LOGEVENT(FTrace_EVT_trace_stop,0,0,0);

  tracer_disable();

  i = 0;

  while (i < total_loader_task) {

    group_kill(l->group);

    i++;

    l=&loader_task_list[i];

  }

  nrt_task_default_model(nrt);

  task_activate(task_create("Finish",finish_task,&nrt,NULL));

}

void set_simulation_time (struct timespec *total) {

  struct timespec end_time;

  ADDTIMESPEC(&zero_time,total,&end_time);

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

}

/* Set the zero_time and post the first activation event */

void start_simulation() {

  int i;

  struct loader_task *l = loader_task_list;

  struct timespec end_time;

  i  = 0;

  tracer_initialize(10000000);

  tracer_enable();

  TRACER_LOGEVENT(FTrace_EVT_trace_start,0,0,0);

  kern_gettime(&zero_time);

  while (i < total_loader_task) {

    if (l->act_number > 0) {

      ADDTIMESPEC(&zero_time, &l->act[0], &end_time);

      l->act_current++;

      kern_event_post(&end_time,(void *)((void *)(loader_task_activate)),l);

    }

    i++;

    l=&loader_task_list[i];

  }

}

/* Activate task and post the new activation event */

void loader_task_activate(struct loader_task *l) {

  struct timespec actual_time,end_time;

  kern_gettime(&actual_time);

  group_activate(l->group);

  if (l->act_number > l->act_current) {

    ADDTIMESPEC(&actual_time, &l->act[l->act_current], &end_time);

    l->act_current++;

    kern_event_post(&end_time,(void *)((void *)(loader_task_activate)),l);

  }

}