This is a comment about vxWorks and a question about RTEMS.
On vxWorks the following is done:
/* Just map osi 0 to 99 into vx 100 to 199 */
/* remember that for vxWorks lower number means higher priority */
/* vx = 100 + (99 -osi) = 199 - osi*/
/* osi = 199 - vx */
Since the network tasks, etc all have vxWorks priorities < 100 there is no
chance an epics thread can be created with a priortity > important vxWorks threads.
What is the range of priorities for RTEMS?
Comment. It seem to me that a system with severe real time requirements should
not use BSD style networking. But I guess that the key to implementing severe
real time systems is to carefully decide what it must do and don't let it do
anything else.
Marty
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