sched: Introduce sched_wake_tasks() function to wake up tasks

Add function to indicate when tasks need to be run.  This will allow
the scheduler code to know if there are any tasks that need to be
processed.

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
This commit is contained in:
Kevin O'Connor 2017-08-07 11:33:31 -04:00
parent e9d2ec7c41
commit a9982beacf
10 changed files with 74 additions and 10 deletions

View file

@ -28,6 +28,9 @@ static struct timer sentinel_timer, deleted_timer;
static uint_fast8_t
periodic_event(struct timer *t)
{
// Make sure the stats task runs periodically
sched_wake_tasks();
// Reschedule timer
periodic_timer.waketime += timer_from_us(100000);
sentinel_timer.waketime = periodic_timer.waketime + 0x80000000;
return SF_RESCHEDULE;
@ -177,10 +180,17 @@ sched_timer_reset(void)
* Task waking
****************************************************************/
// Note that at least one task is ready to run
void
sched_wake_tasks(void)
{
}
// Note that a task is ready to run
void
sched_wake_task(struct task_wake *w)
{
sched_wake_tasks();
writeb(&w->wake, 1);
}