static inline lagopus_result_t
s_stop_callout_main_loop(void) {
lagopus_result_t ret = LAGOPUS_RESULT_ANY_FAILURES;
if (s_is_stopped == false) {
if (s_do_loop == true) {
/*
* Stop the main loop first.
*/
s_do_loop = false;
mbar();
(void)lagopus_bbq_wakeup(&s_urgent_tsk_q, -1LL);
s_lock_sched();
{
while (s_is_stopped == false) {
s_wait_sched(-1LL);
}
}
s_unlock_sched();
ret = LAGOPUS_RESULT_OK;
} else {
ret = LAGOPUS_RESULT_OK;
}
} else {
ret = LAGOPUS_RESULT_OK;
}
return ret;
}
static inline lagopus_chrono_t
s_do_sched(lagopus_callout_task_t t) {
lagopus_result_t ret = -1LL;
lagopus_result_t r;
lagopus_callout_task_t e;
s_lock_task_q();
{
s_lock_task(t);
{
if (likely(t->m_is_in_timed_q == false)) {
/*
* Firstly (re-)compute the next exeution time of this
* task.
*/
if (t->m_is_first == false && t->m_do_repeat == true) {
t->m_next_abstime = t->m_last_abstime + t->m_interval_time;
} else {
WHAT_TIME_IS_IT_NOW_IN_NSEC(t->m_last_abstime);
t->m_next_abstime = t->m_last_abstime + t->m_initial_delay_time;
}
/*
* Then insert the task into the Q.
*/
e = TAILQ_FIRST(&s_chrono_tsk_q);
if (e != NULL) {
if (e->m_next_abstime > t->m_next_abstime) {
TAILQ_INSERT_HEAD(&s_chrono_tsk_q, t, m_entry);
} else {
for (;
e != NULL && e->m_next_abstime <= t->m_next_abstime;
e = TAILQ_NEXT(e, m_entry)) {
;
}
if (e != NULL) {
TAILQ_INSERT_BEFORE(e, t, m_entry);
} else {
TAILQ_INSERT_TAIL(&s_chrono_tsk_q, t, m_entry);
}
}
} else {
TAILQ_INSERT_TAIL(&s_chrono_tsk_q, t, m_entry);
}
(void)s_set_task_state_in_table(t, TASK_STATE_ENQUEUED);
t->m_status = TASK_STATE_ENQUEUED;
t->m_is_in_timed_q = true;
ret = t->m_next_abstime;
/*
* Fianlly wake the master scheduler.
*/
lagopus_msg_debug(4, "wake the master scheduler up.\n");
/*
* TODO
*
* Re-optimize forcible wake up by timed task submission
* timing and times. See also
* callout.c:s_start_callout_main_loop()
*/
r = lagopus_bbq_wakeup(&s_urgent_tsk_q, 0LL);
if (unlikely(r != LAGOPUS_RESULT_OK)) {
lagopus_perror(r);
lagopus_msg_error("can't wake the callout task master "
"scheduler up.\n");
}
}
}
s_unlock_task(t);
}
s_unlock_task_q();
return ret;
}
