Tom 601a688b6f Kernel: TimerQueue::cancel_timer needs to wait if timer is executing ...

We need to be able to guarantee that a timer won't be executing after
TimerQueue::cancel_timer returns. In the case of multiple processors
this means that we may need to wait while the timer handler finishes
execution on another core.

This also fixes a problem in Thread::block and Thread::wait_on where
theoretically the timer could execute after the function returned
and the Thread disappeared.

2020-12-02 13:02:04 +01:00

8.3 KiB

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