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Typical Real Time Oprating Systems support various priority handling
policies, like priority ceiling and priority inheritance.
However in rtker, the scheduling of
threads (and hence priorities) is not handled by the kernel but by the user
defined scheduling algorithm. Hence we have defined functions like get_priority and set_priority in the Scheduler API, which the semaphore
library can invoke for implementiong the desired priority control policy. This
thing is yet to be incorporated into the kernel.
Soumyadeb Mitra
2002-08-07