/* returns 1 if the task needs to go the release queue */
static int advance_subtask(quanta_t time, struct task_struct* t, int cpu)
{
struct pfair_param* p = tsk_pfair(t);
int to_relq;
p->cur = (p->cur + 1) % p->quanta;
if (!p->cur) {
sched_trace_task_completion(t, 1);
if (tsk_rt(t)->present) {
/* we start a new job */
prepare_for_next_period(t);
sched_trace_task_release(t);
get_rt_flags(t) = RT_F_RUNNING;
p->release += p->period;
} else {
/* remove task from system until it wakes */
drop_all_references(t);
tsk_pfair(t)->sporadic_release = 1;
TRACE_TASK(t, "on %d advanced to subtask %lu (not present)\n",
cpu, p->cur);
return 0;
}
}
to_relq = time_after(cur_release(t), time);
TRACE_TASK(t, "on %d advanced to subtask %lu -> to_relq=%d\n",
cpu, p->cur, to_relq);
return to_relq;
}
static void job_completion(struct task_struct* t, int forced)
{
sched_trace_task_completion(t,forced);
TRACE_TASK(t, "job_completion().\n");
tsk_rt(t)->completed = 0;
prepare_for_next_period(t);
}
void release_at(struct task_struct *t, lt_t start)
{
t->rt_param.job_params.deadline = start;
prepare_for_next_period(t);
set_rt_flags(t, RT_F_RUNNING);
}
/* This helper is called when task `prev` exhausted its budget or when
* it signaled a job completion. */
static void demo_job_completion(struct task_struct *prev, int budget_exhausted)
{
/* Call common helper code to compute the next release time, deadline,
* etc. */
prepare_for_next_period(prev);
}
