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#include <unistd.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <signal.h>
#include <sys/mman.h>
#include "litmus.h"
#include "internal.h"
const char* get_scheduler_name(spolicy scheduler)
{
const char* name;
switch (scheduler){
case SCHED_LINUX :
name = "Linux";
break;
case SCHED_PFAIR:
name = "Pfair";
break;
case SCHED_PART_EDF:
name = "Partioned EDF";
break;
case SCHED_GLOBAL_EDF:
name = "Global EDF";
break;
case SCHED_EDF_HSB:
name = "EDF-HSB";
break;
case SCHED_GSN_EDF:
name = "GSN-EDF";
break;
case SCHED_PSN_EDF:
name = "PSN-EDF";
break;
case SCHED_ADAPTIVE:
name = "ADAPTIVE";
break;
default:
name = "Unkown";
break;
}
return name;
}
void show_rt_param(rt_param_t* tp)
{
printf("rt params:\n\t"
"exec_cost:\t%ld\n\tperiod:\t\t%ld\n\tcpu:\t%d\n",
tp->exec_cost, tp->period, tp->cpu);
}
task_class_t str2class(const char* str)
{
if (!strcmp(str, "hrt"))
return RT_CLASS_HARD;
else if (!strcmp(str, "srt"))
return RT_CLASS_SOFT;
else if (!strcmp(str, "be"))
return RT_CLASS_BEST_EFFORT;
else
return -1;
}
int sporadic_task(unsigned long e, unsigned long p,
int cpu, task_class_t cls)
{
rt_param_t param;
param.exec_cost = e;
param.period = p;
param.cpu = cpu;
param.cls = cls;
return set_rt_task_param(getpid(), ¶m);
}
int init_kernel_iface(void);
int init_litmus(void)
{
int ret, ret2;
ret = mlockall(MCL_CURRENT | MCL_FUTURE);
check("mlockall()");
ret2 = init_rt_thread();
return ret == 0 && ret2 == 0;
}
int init_rt_thread(void)
{
int ret;
ret = init_kernel_iface();
check("kernel <-> user space interface initialization");
return ret;
}
void exit_litmus(void)
{
/* nothing to do in current version */
}
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