On May 14, 2008, at 1:22 PM, Frederic Beaulieu wrote:
> I’m just looking in the scheduler task loop and I wonder how an
> event generated by an interrupt can post a task if the while loop
> waiting for a task is in atomic section (see code below)??? It seems
> very strange.
>
> command void Scheduler.taskLoop()
> {
> for (;;)
> {
> uint8_t nextTask;
>
> atomic
> {
> while ((nextTask = popTask()) == NO_TASK)
> {
> call McuSleep.sleep();
> }
> }
> signal TaskBasic.runTask[nextTask]();
> }
> }
>
The call to sleep re-enables interrupts. Section 3 of TEP 112 goes
into this.
Phil
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