LINNIG@eg.ti.COM (Mike Linnig) (02/20/88)
Given the current interpretation of Ada priorities and preemptive scheduling, it seems that compiler vendors that supported priority levels but not preemptive scheduling now have two choices... 1. Modify their runtime to support preemptive scheduling. This may be expensive or impossible if the underlying hardware does not have time driven interrupts. 2. Restrict priorities to be a single number (i.e. disable pragma priority) My question is... are we losing something here? Is there a value to having multiple priorities even if we don't have preemptive scheduling? Mike Linnig, Texas Instruments