Re: [ECOS] Unique priorities

[Jonathan Larmour <jlarmour at redhat dot com>]

Jesper Skov wrote:
> 
> >>>>> "Paleologos" == Paleologos Spanos <paleolog@ee.ucla.edu> writes:
> Paleologos> mlqueues default scheduler).  I would expect that I would
> Paleologos> have an error or something like that because of the fact
> Paleologos> that the 2 threads are having the same priority (4).Is it
> Paleologos> correct or I have misunderstood something?
> 
> The bitmap scheduler will assign a thread the closest possible
> priority to that requested. It does not fail if the requested priority
> is already used, it just returns another. So your threads would
> probably have priorities 4 and 5.

Jesper are you sure about that? From bitmap.cxx

void Cyg_Scheduler_Implementation::add_thread(Cyg_Thread *thread)
{
    CYG_REPORT_FUNCTION();
        
    CYG_ASSERT((CYG_THREAD_MIN_PRIORITY >= thread->priority) 
               && (CYG_THREAD_MAX_PRIORITY <= thread->priority),
               "Priority out of range!");

    CYG_ASSERT( thread_table[thread->priority] == NULL ||
                thread_table[thread->priority] == thread,
                "Duplicate thread priorities" );

Jifl
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