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sched: Introduce sched_wake_tasks() function to wake up tasks

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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
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10
src/sched.c
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@ -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);
}