linked lists

[Gedare Bloom]

On Tue, Aug 28, 2012 at 5:22 AM, Fered <a_Fered at yahoo.com> wrote:
> Chris Johns wrote:
>> Fered wrote:
>> > Fered wrote:
>> >> Suppose I want to have a linked list of some threads in RTEMS core. It's
>> >> a
>> >> OS level data structure. Same as _Thread_Ready_chain.
>> >
>> > I expected more answers!
>>
>> Sure, so asking again is fine.
>>
>> I use the score chains where I can in RTEMS. If the code
>> is in the score I use the score API. You can find examples of chains
>> being used in the score. If the code is for the cpukit I use the RTEMS
>> API for chains. This is the score chains API exported as an RTEMS API.
>> You can find examples of this in the libblock/src/bdbuf.c code or the
>> RFS file system in cpukit/libfs.
>>
>> In applications I also use the RTEMS API and sometimes I use the BSD
>> lists. It just depends on what I need to do.
>>
>> You indicate you have an OS level data structure but I am still not
>> clear where the code lives. For example an OS data structure could be
>> hooked onto a watchdog chain so I would use the RTEMS chains API. If you
>> are adding code to the score then the score's API is fine. Using score
>> APIs outside the score are not encouraged.
>>
>> Does this help ?
>>
>> Chris
>
> Thank you very much Chris.
>
> I have 32 lists of some threads. Each list can be empty or contains some
> nodes. Each thread in the OS can be in non of the lists or in one or more
> lists.(Therefor we don't know each thread will be in how many lists)
> Also I need traversing these lists in specified periods of time.
> These lists will be in the score. At these circumstances you say the score's
> API, is sufficient for me?
Sounds similar to the ready chains. Watchdog chain is somewhat similar
but is only one list...

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