Add support for Real Time processes

danielinux commented 8 years ago

[x] Add priority statistics in /sys/tasks
[x] Add system calls set_priority()/get_priority
[x] Calculate timeslices on the base of prio (use -20 = RT)
[x] Refactor task_resume to preempt/force-switch to the RT process
[ ] Test it, somehow.

By ignoring priority on mutex_unlock/sem_post, priority inversion is not required: use current task_resume implementation for locks listeners to ignore locks priority.

Other uses of task_resume (signals, sleep wakeup, device ISRs) should preempt/force-switch if t.prio=RT.

danielinux commented 8 years ago

Job done here. Just need some proper validation...

danielinux commented 8 years ago

Implementation is complete, only timing test needed. Switching to #61 for further research.

insane-adding-machines / frosted

Add support for Real Time processes #51