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1233 giacomo 1 
#include <kernel/kern.h>
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#include "func.h"
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/* Delay Calibration */
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int calibrate_cycle()
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{
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  long long i;
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  struct timespec start,end,diff;
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  kern_cli();
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  kern_gettime(&start);
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  for (i=0;i<CALIBRATION_DELTA;i++) kern_gettime(NULL);
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  kern_gettime(&end);
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  kern_sti();
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  SUBTIMESPEC(&end,&start,&diff);
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  cal_cycles = TIMESPEC2USEC(&diff);
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  cprintf("Calibration usec/[%d cycles] = %d\n",CALIBRATION_DELTA,cal_cycles);
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  return 0;
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}
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void *get_task_model(struct loader_task *current) {
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  if (current->local_scheduler == LOADER_POSIX_SCHEDULER) {
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    static NRT_TASK_MODEL nrt;
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    nrt_task_default_model(nrt);
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    nrt_task_def_save_arrivals(nrt);
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    nrt_task_def_ctrl_jet(nrt);
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    nrt_task_def_usemath(nrt);
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    return &nrt;
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  }  
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  if (current->local_scheduler == LOADER_EDF_SCHEDULER) {
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    static HARD_TASK_MODEL ht;
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    hard_task_default_model(ht);
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    hard_task_def_ctrl_jet(ht);          
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    hard_task_def_mit(ht,TIMESPEC2USEC(&current->deadline));
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    hard_task_def_wcet(ht,TIMESPEC2USEC(&current->wcet));
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    hard_task_def_usemath(ht);
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    return &ht;
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  }  
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  if (current->local_scheduler == LOADER_RM_SCHEDULER) {
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    static HARD_TASK_MODEL ht;
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    hard_task_default_model(ht);
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    hard_task_def_mit(ht,TIMESPEC2USEC(&current->deadline));
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    hard_task_def_wcet(ht,TIMESPEC2USEC(&current->wcet));
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    hard_task_def_ctrl_jet(ht);
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    hard_task_def_usemath(ht);
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    return &ht;
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  }  
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}  
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void set_simulation_time (struct timespec *total) {
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  struct timespec end_time;
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  kern_gettime(&zero_time);
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  ADDTIMESPEC(&zero_time,total,&end_time);
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  kern_event_post(&end_time,(void *)((void *)(sys_end)),NULL);
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}
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void set_next_activation(struct timespec *next) {
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  struct timespec end_time;
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 ADDTIMESPEC(&zero_time,next,&end_time);
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 kern_event_post(&end_time,(void *)((void *)(task_activate(exec_shadow))),NULL);
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}
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int calibration_func() {
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  return kern_gettime(NULL);
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}